Merge commit 'md/for-linus' into async-tx-next

Conflicts:
	drivers/md/raid5.c

847 files changed, 26605 insertions, 13037 deletions

diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index 7a0f4aa4fa1e..9a62224cc278 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -38,6 +38,9 @@
 
 #define _COMPONENT              ACPI_MEMORY_DEVICE_COMPONENT
 
+#undef PREFIX
+#define         PREFIX          "ACPI:memory_hp:"
+
 ACPI_MODULE_NAME("acpi_memhotplug");
 MODULE_AUTHOR("Naveen B S <naveen.b.s@intel.com>");
 MODULE_DESCRIPTION("Hotplug Mem Driver");
@@ -153,6 +156,7 @@ acpi_memory_get_device(acpi_handle handle,
         acpi_handle phandle;
         struct acpi_device *device = NULL;
         struct acpi_device *pdevice = NULL;
+        int result;
 
 
         if (!acpi_bus_get_device(handle, &device) && device)
@@ -165,9 +169,9 @@ acpi_memory_get_device(acpi_handle handle,
         }
 
         /* Get the parent device */
-        status = acpi_bus_get_device(phandle, &pdevice);
-        if (ACPI_FAILURE(status)) {
-                ACPI_EXCEPTION((AE_INFO, status, "Cannot get acpi bus device"));
+        result = acpi_bus_get_device(phandle, &pdevice);
+        if (result) {
+                printk(KERN_WARNING PREFIX "Cannot get acpi bus device");
                 return -EINVAL;
         }
 
@@ -175,9 +179,9 @@ acpi_memory_get_device(acpi_handle handle,
          * Now add the notified device.  This creates the acpi_device
          * and invokes .add function
          */
-        status = acpi_bus_add(&device, pdevice, handle, ACPI_BUS_TYPE_DEVICE);
-        if (ACPI_FAILURE(status)) {
-                ACPI_EXCEPTION((AE_INFO, status, "Cannot add acpi bus"));
+        result = acpi_bus_add(&device, pdevice, handle, ACPI_BUS_TYPE_DEVICE);
+        if (result) {
+                printk(KERN_WARNING PREFIX "Cannot add acpi bus");
                 return -EINVAL;
         }
 
@@ -238,7 +242,12 @@ static int acpi_memory_enable_device(struct acpi_memory_device *mem_device)
                         num_enabled++;
                         continue;
                 }
-
+                /*
+                 * If the memory block size is zero, please ignore it.
+                 * Don't try to do the following memory hotplug flowchart.
+                 */
+                if (!info->length)
+                        continue;
                 if (node < 0)
                         node = memory_add_physaddr_to_nid(info->start_addr);
 
@@ -253,8 +262,15 @@ static int acpi_memory_enable_device(struct acpi_memory_device *mem_device)
                 mem_device->state = MEMORY_INVALID_STATE;
                 return -EINVAL;
         }
-
-        return result;
+        /*
+         * Sometimes the memory device will contain several memory blocks.
+         * When one memory block is hot-added to the system memory, it will
+         * be regarded as a success.
+         * Otherwise if the last memory block can't be hot-added to the system
+         * memory, it will be failure and the memory device can't be bound with
+         * driver.
+         */
+        return 0;
 }
 
 static int acpi_memory_powerdown_device(struct acpi_memory_device *mem_device)
diff --git a/drivers/acpi/acpica/acobject.h b/drivers/acpi/acpica/acobject.h
index 544dcf834922..eb6f038b03d9 100644
--- a/drivers/acpi/acpica/acobject.h
+++ b/drivers/acpi/acpica/acobject.h
@@ -97,6 +97,7 @@
 #define AOPOBJ_OBJECT_INITIALIZED   0x08
 #define AOPOBJ_SETUP_COMPLETE       0x10
 #define AOPOBJ_SINGLE_DATUM         0x20
+#define AOPOBJ_INVALID              0x40        /* Used if host OS won't allow an op_region address */
 
 /******************************************************************************
  *
diff --git a/drivers/acpi/acpica/dsopcode.c b/drivers/acpi/acpica/dsopcode.c
index 584d766e6f12..b79978f7bc71 100644
--- a/drivers/acpi/acpica/dsopcode.c
+++ b/drivers/acpi/acpica/dsopcode.c
@@ -397,6 +397,30 @@ acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *obj_desc)
         status = acpi_ds_execute_arguments(node, acpi_ns_get_parent_node(node),
                                            extra_desc->extra.aml_length,
                                            extra_desc->extra.aml_start);
+        if (ACPI_FAILURE(status)) {
+                return_ACPI_STATUS(status);
+        }
+
+        /* Validate the region address/length via the host OS */
+
+        status = acpi_os_validate_address(obj_desc->region.space_id,
+                                          obj_desc->region.address,
+                                          (acpi_size) obj_desc->region.length,
+                                          acpi_ut_get_node_name(node));
+
+        if (ACPI_FAILURE(status)) {
+                /*
+                 * Invalid address/length. We will emit an error message and mark
+                 * the region as invalid, so that it will cause an additional error if
+                 * it is ever used. Then return AE_OK.
+                 */
+                ACPI_EXCEPTION((AE_INFO, status,
+                                "During address validation of OpRegion [%4.4s]",
+                                node->name.ascii));
+                obj_desc->common.flags |= AOPOBJ_INVALID;
+                status = AE_OK;
+        }
+
         return_ACPI_STATUS(status);
 }
 
diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c
index d4075b821021..6687be167f5f 100644
--- a/drivers/acpi/acpica/exfldio.c
+++ b/drivers/acpi/acpica/exfldio.c
@@ -113,6 +113,12 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc,
                 }
         }
 
+        /* Exit if Address/Length have been disallowed by the host OS */
+
+        if (rgn_desc->common.flags & AOPOBJ_INVALID) {
+                return_ACPI_STATUS(AE_AML_ILLEGAL_ADDRESS);
+        }
+
         /*
          * Exit now for SMBus address space, it has a non-linear address space
          * and the request cannot be directly validated
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 71670719d61a..5691f165a952 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -189,11 +189,36 @@ acpi_status __init acpi_os_initialize(void)
         return AE_OK;
 }
 
+static void bind_to_cpu0(struct work_struct *work)
+{
+        set_cpus_allowed(current, cpumask_of_cpu(0));
+        kfree(work);
+}
+
+static void bind_workqueue(struct workqueue_struct *wq)
+{
+        struct work_struct *work;
+
+        work = kzalloc(sizeof(struct work_struct), GFP_KERNEL);
+        INIT_WORK(work, bind_to_cpu0);
+        queue_work(wq, work);
+}
+
 acpi_status acpi_os_initialize1(void)
 {
+        /*
+         * On some machines, a software-initiated SMI causes corruption unless
+         * the SMI runs on CPU 0.  An SMI can be initiated by any AML, but
+         * typically it's done in GPE-related methods that are run via
+         * workqueues, so we can avoid the known corruption cases by binding
+         * the workqueues to CPU 0.
+         */
         kacpid_wq = create_singlethread_workqueue("kacpid");
+        bind_workqueue(kacpid_wq);
         kacpi_notify_wq = create_singlethread_workqueue("kacpi_notify");
+        bind_workqueue(kacpi_notify_wq);
         kacpi_hotplug_wq = create_singlethread_workqueue("kacpi_hotplug");
+        bind_workqueue(kacpi_hotplug_wq);
         BUG_ON(!kacpid_wq);
         BUG_ON(!kacpi_notify_wq);
         BUG_ON(!kacpi_hotplug_wq);
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 8a5bf3b356fa..55b5b90c2a44 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -395,7 +395,7 @@ struct pci_dev *acpi_get_pci_dev(acpi_handle handle)
                 fn  = adr & 0xffff;
 
                 pdev = pci_get_slot(pbus, PCI_DEVFN(dev, fn));
-                if (hnd == handle)
+                if (!pdev || hnd == handle)
                         break;
 
                 pbus = pdev->subordinate;
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 01574a066534..42159a28f433 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -397,6 +397,14 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
                 },
         },
         {
+        .callback = init_set_sci_en_on_resume,
+        .ident = "Hewlett-Packard HP G7000 Notebook PC",
+        .matches = {
+                DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+                DMI_MATCH(DMI_PRODUCT_NAME, "HP G7000 Notebook PC"),
+                },
+        },
+        {
         .callback = init_old_suspend_ordering,
         .ident = "Panasonic CF51-2L",
         .matches = {
diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c
index 0944daec064f..9c61ab2177cf 100644
--- a/drivers/acpi/system.c
+++ b/drivers/acpi/system.c
@@ -121,7 +121,7 @@ static void acpi_table_attr_init(struct acpi_table_attr *table_attr,
         table_attr->attr.size = 0;
         table_attr->attr.read = acpi_table_show;
         table_attr->attr.attr.name = table_attr->name;
-        table_attr->attr.attr.mode = 0444;
+        table_attr->attr.attr.mode = 0400;
 
         return;
 }
diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
index 3d763fdf99b7..246650673010 100644
--- a/drivers/amba/bus.c
+++ b/drivers/amba/bus.c
@@ -207,6 +207,16 @@ int amba_device_register(struct amba_device *dev, struct resource *parent)
         void __iomem *tmp;
         int i, ret;
 
+        device_initialize(&dev->dev);
+
+        /*
+         * Copy from device_add
+         */
+        if (dev->dev.init_name) {
+                dev_set_name(&dev->dev, "%s", dev->dev.init_name);
+                dev->dev.init_name = NULL;
+        }
+
         dev->dev.release = amba_device_release;
         dev->dev.bus = &amba_bustype;
         dev->dev.dma_mask = &dev->dma_mask;
@@ -240,7 +250,7 @@ int amba_device_register(struct amba_device *dev, struct resource *parent)
                 goto err_release;
         }
 
-        ret = device_register(&dev->dev);
+        ret = device_add(&dev->dev);
         if (ret)
                 goto err_release;
 
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 15a23031833f..958c1fa41900 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -513,11 +513,16 @@ static const struct pci_device_id ahci_pci_tbl[] = {
         { PCI_VDEVICE(INTEL, 0x502a), board_ahci }, /* Tolapai */
         { PCI_VDEVICE(INTEL, 0x502b), board_ahci }, /* Tolapai */
         { PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */
+        { PCI_VDEVICE(INTEL, 0x3a22), board_ahci }, /* ICH10 */
         { PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */
+        { PCI_VDEVICE(INTEL, 0x3b22), board_ahci }, /* PCH AHCI */
+        { PCI_VDEVICE(INTEL, 0x3b23), board_ahci }, /* PCH AHCI */
         { PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */
         { PCI_VDEVICE(INTEL, 0x3b25), board_ahci }, /* PCH RAID */
+        { PCI_VDEVICE(INTEL, 0x3b29), board_ahci }, /* PCH AHCI */
         { PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
         { PCI_VDEVICE(INTEL, 0x3b2c), board_ahci }, /* PCH RAID */
+        { PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
 
         /* JMicron 360/1/3/5/6, match class to avoid IDE function */
         { PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index d0a14cf2bd74..56b8a3ff1286 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -596,9 +596,12 @@ static const struct ich_laptop ich_laptop[] = {
         { 0x27DF, 0x0005, 0x0280 },     /* ICH7 on Acer 5602WLMi */
         { 0x27DF, 0x1025, 0x0102 },     /* ICH7 on Acer 5602aWLMi */
         { 0x27DF, 0x1025, 0x0110 },     /* ICH7 on Acer 3682WLMi */
+        { 0x27DF, 0x1028, 0x02b0 },     /* ICH7 on unknown Dell */
         { 0x27DF, 0x1043, 0x1267 },     /* ICH7 on Asus W5F */
         { 0x27DF, 0x103C, 0x30A1 },     /* ICH7 on HP Compaq nc2400 */
+        { 0x27DF, 0x103C, 0x361a },     /* ICH7 on unkown HP  */
         { 0x27DF, 0x1071, 0xD221 },     /* ICH7 on Hercules EC-900 */
+        { 0x27DF, 0x152D, 0x0778 },     /* ICH7 on unknown Intel */
         { 0x24CA, 0x1025, 0x0061 },     /* ICH4 on ACER Aspire 2023WLMi */
         { 0x24CA, 0x1025, 0x003d },     /* ICH4 on ACER TM290 */
         { 0x266F, 0x1025, 0x0066 },     /* ICH6 on ACER Aspire 1694WLMi */
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 045a486a09ea..8ac98ff16d7d 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1515,6 +1515,7 @@ static int ata_hpa_resize(struct ata_device *dev)
 
                 return rc;
         }
+        dev->n_native_sectors = native_sectors;
 
         /* nothing to do? */
         if (native_sectors <= sectors || !ata_ignore_hpa) {
@@ -3392,17 +3393,27 @@ int ata_down_xfermask_limit(struct ata_device *dev, unsigned int sel)
 
 static int ata_dev_set_mode(struct ata_device *dev)
 {
+        struct ata_port *ap = dev->link->ap;
         struct ata_eh_context *ehc = &dev->link->eh_context;
+        const bool nosetxfer = dev->horkage & ATA_HORKAGE_NOSETXFER;
         const char *dev_err_whine = "";
         int ign_dev_err = 0;
-        unsigned int err_mask;
+        unsigned int err_mask = 0;
         int rc;
 
         dev->flags &= ~ATA_DFLAG_PIO;
         if (dev->xfer_shift == ATA_SHIFT_PIO)
                 dev->flags |= ATA_DFLAG_PIO;
 
-        err_mask = ata_dev_set_xfermode(dev);
+        if (nosetxfer && ap->flags & ATA_FLAG_SATA && ata_id_is_sata(dev->id))
+                dev_err_whine = " (SET_XFERMODE skipped)";
+        else {
+                if (nosetxfer)
+                        ata_dev_printk(dev, KERN_WARNING,
+                                       "NOSETXFER but PATA detected - can't "
+                                       "skip SETXFER, might malfunction\n");
+                err_mask = ata_dev_set_xfermode(dev);
+        }
 
         if (err_mask & ~AC_ERR_DEV)
                 goto fail;
@@ -4089,6 +4100,7 @@ int ata_dev_revalidate(struct ata_device *dev, unsigned int new_class,
                        unsigned int readid_flags)
 {
         u64 n_sectors = dev->n_sectors;
+        u64 n_native_sectors = dev->n_native_sectors;
         int rc;
 
         if (!ata_dev_enabled(dev))
@@ -4118,16 +4130,30 @@ int ata_dev_revalidate(struct ata_device *dev, unsigned int new_class,
         /* verify n_sectors hasn't changed */
         if (dev->class == ATA_DEV_ATA && n_sectors &&
             dev->n_sectors != n_sectors) {
-                ata_dev_printk(dev, KERN_INFO, "n_sectors mismatch "
+                ata_dev_printk(dev, KERN_WARNING, "n_sectors mismatch "
                                "%llu != %llu\n",
                                (unsigned long long)n_sectors,
                                (unsigned long long)dev->n_sectors);
-
-                /* restore original n_sectors */
-                dev->n_sectors = n_sectors;
-
-                rc = -ENODEV;
-                goto fail;
+                /*
+                 * Something could have caused HPA to be unlocked
+                 * involuntarily.  If n_native_sectors hasn't changed
+                 * and the new size matches it, keep the device.
+                 */
+                if (dev->n_native_sectors == n_native_sectors &&
+                    dev->n_sectors > n_sectors &&
+                    dev->n_sectors == n_native_sectors) {
+                        ata_dev_printk(dev, KERN_WARNING,
+                                       "new n_sectors matches native, probably "
+                                       "late HPA unlock, continuing\n");
+                        /* keep using the old n_sectors */
+                        dev->n_sectors = n_sectors;
+                } else {
+                        /* restore original n_[native]_sectors and fail */
+                        dev->n_native_sectors = n_native_sectors;
+                        dev->n_sectors = n_sectors;
+                        rc = -ENODEV;
+                        goto fail;
+                }
         }
 
         return 0;
@@ -4297,6 +4323,12 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
         /* Devices which aren't very happy with higher link speeds */
         { "WD My Book",                 NULL,   ATA_HORKAGE_1_5_GBPS, },
 
+        /*
+         * Devices which choke on SETXFER.  Applies only if both the
+         * device and controller are SATA.
+         */
+        { "PIONEER DVD-RW  DVRTD08",    "1.00", ATA_HORKAGE_NOSETXFER },
+
         /* End Marker */
         { }
 };
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index fa22f94ca415..79711b64054b 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -2327,7 +2327,7 @@ int ata_eh_reset(struct ata_link *link, int classify,
         struct ata_port *ap = link->ap;
         struct ata_link *slave = ap->slave_link;
         struct ata_eh_context *ehc = &link->eh_context;
-        struct ata_eh_context *sehc = &slave->eh_context;
+        struct ata_eh_context *sehc = slave ? &slave->eh_context : NULL;
         unsigned int *classes = ehc->classes;
         unsigned int lflags = link->flags;
         int verbose = !(ehc->i.flags & ATA_EHI_QUIET);
@@ -2517,6 +2517,10 @@ int ata_eh_reset(struct ata_link *link, int classify,
 
                         ata_eh_about_to_do(link, NULL, ATA_EH_RESET);
                         rc = ata_do_reset(link, reset, classes, deadline, true);
+                        if (rc) {
+                                failed_link = link;
+                                goto fail;
+                        }
                 }
         } else {
                 if (verbose)
diff --git a/drivers/ata/pata_at91.c b/drivers/ata/pata_at91.c
index 4b27617be26d..5702affcb325 100644
--- a/drivers/ata/pata_at91.c
+++ b/drivers/ata/pata_at91.c
@@ -26,9 +26,7 @@
 #include <linux/platform_device.h>
 #include <linux/ata_platform.h>
 
-#include <mach/at91sam9260_matrix.h>
 #include <mach/at91sam9_smc.h>
-#include <mach/at91sam9260.h>
 #include <mach/board.h>
 #include <mach/gpio.h>
 
@@ -44,65 +42,62 @@ struct at91_ide_info {
         unsigned long mode;
         unsigned int cs;
 
+        struct clk *mck;
+
         void __iomem *ide_addr;
         void __iomem *alt_addr;
 };
 
-const struct ata_timing initial_timing =
+static const struct ata_timing initial_timing =
         {XFER_PIO_0, 70, 290, 240, 600, 165, 150, 600, 0};
 
-static unsigned int calc_mck_cycles(unsigned int ns, unsigned int mck_hz)
+static unsigned long calc_mck_cycles(unsigned long ns, unsigned long mck_hz)
 {
         unsigned long mul;
 
-    /*
-     * cycles = x [nsec] * f [Hz] / 10^9 [ns in sec] =
-     *     x * (f / 1_000_000_000) =
-     *     x * ((f * 65536) / 1_000_000_000) / 65536 =
-     *     x * (((f / 10_000) * 65536) / 100_000) / 65536 =
-     */
+        /*
+        * cycles = x [nsec] * f [Hz] / 10^9 [ns in sec] =
+        *     x * (f / 1_000_000_000) =
+        *     x * ((f * 65536) / 1_000_000_000) / 65536 =
+        *     x * (((f / 10_000) * 65536) / 100_000) / 65536 =
+        */
 
-    mul = (mck_hz / 10000) << 16;
-    mul /= 100000;
+        mul = (mck_hz / 10000) << 16;
+        mul /= 100000;
 
-    return (ns * mul + 65536) >> 16;    /* rounding */
+        return (ns * mul + 65536) >> 16;    /* rounding */
 }
 
 static void set_smc_mode(struct at91_ide_info *info)
 {
-    at91_sys_write(AT91_SMC_MODE(info->cs), info->mode);
-    return;
+        at91_sys_write(AT91_SMC_MODE(info->cs), info->mode);
+        return;
 }
 
 static void set_smc_timing(struct device *dev,
                 struct at91_ide_info *info, const struct ata_timing *ata)
 {
-        int read_cycle, write_cycle, active, recover;
-        int nrd_setup, nrd_pulse, nrd_recover;
-        int nwe_setup, nwe_pulse;
+        unsigned long read_cycle, write_cycle, active, recover;
+        unsigned long nrd_setup, nrd_pulse, nrd_recover;
+        unsigned long nwe_setup, nwe_pulse;
 
-        int ncs_write_setup, ncs_write_pulse;
-        int ncs_read_setup, ncs_read_pulse;
+        unsigned long ncs_write_setup, ncs_write_pulse;
+        unsigned long ncs_read_setup, ncs_read_pulse;
 
-        unsigned int mck_hz;
-        struct clk *mck;
+        unsigned long mck_hz;
 
         read_cycle  = ata->cyc8b;
         nrd_setup   = ata->setup;
         nrd_pulse   = ata->act8b;
         nrd_recover = ata->rec8b;
 
-        mck = clk_get(NULL, "mck");
-        BUG_ON(IS_ERR(mck));
-        mck_hz = clk_get_rate(mck);
+        mck_hz = clk_get_rate(info->mck);
 
         read_cycle  = calc_mck_cycles(read_cycle, mck_hz);
         nrd_setup   = calc_mck_cycles(nrd_setup, mck_hz);
         nrd_pulse   = calc_mck_cycles(nrd_pulse, mck_hz);
         nrd_recover = calc_mck_cycles(nrd_recover, mck_hz);
 
-        clk_put(mck);
-
         active  = nrd_setup + nrd_pulse;
         recover = read_cycle - active;
 
@@ -121,13 +116,13 @@ static void set_smc_timing(struct device *dev,
         ncs_write_setup = ncs_read_setup;
         ncs_write_pulse = ncs_read_pulse;
 
-        dev_dbg(dev, "ATA timings: nrd_setup = %d nrd_pulse = %d nrd_cycle = %d\n",
+        dev_dbg(dev, "ATA timings: nrd_setup = %lu nrd_pulse = %lu nrd_cycle = %lu\n",
                         nrd_setup, nrd_pulse, read_cycle);
-        dev_dbg(dev, "ATA timings: nwe_setup = %d nwe_pulse = %d nwe_cycle = %d\n",
+        dev_dbg(dev, "ATA timings: nwe_setup = %lu nwe_pulse = %lu nwe_cycle = %lu\n",
                         nwe_setup, nwe_pulse, write_cycle);
-        dev_dbg(dev, "ATA timings: ncs_read_setup = %d ncs_read_pulse = %d\n",
+        dev_dbg(dev, "ATA timings: ncs_read_setup = %lu ncs_read_pulse = %lu\n",
                         ncs_read_setup, ncs_read_pulse);
-        dev_dbg(dev, "ATA timings: ncs_write_setup = %d ncs_write_pulse = %d\n",
+        dev_dbg(dev, "ATA timings: ncs_write_setup = %lu ncs_write_pulse = %lu\n",
                         ncs_write_setup, ncs_write_pulse);
 
         at91_sys_write(AT91_SMC_SETUP(info->cs),
@@ -217,6 +212,7 @@ static int __devinit pata_at91_probe(struct platform_device *pdev)
         struct resource *mem_res;
         struct ata_host *host;
         struct ata_port *ap;
+
         int irq_flags = 0;
         int irq = 0;
         int ret;
@@ -261,6 +257,13 @@ static int __devinit pata_at91_probe(struct platform_device *pdev)
                 return -ENOMEM;
         }
 
+        info->mck = clk_get(NULL, "mck");
+
+        if (IS_ERR(info->mck)) {
+                dev_err(dev, "failed to get access to mck clock\n");
+                return -ENODEV;
+        }
+
         info->cs    = board->chipselect;
         info->mode  = AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
                 AT91_SMC_EXNWMODE_READY | AT91_SMC_BAT_SELECT |
@@ -304,6 +307,7 @@ err_alt_ioremap:
         devm_iounmap(dev, info->ide_addr);
 
 err_ide_ioremap:
+        clk_put(info->mck);
         kfree(info);
 
         return ret;
@@ -312,11 +316,12 @@ err_ide_ioremap:
 static int __devexit pata_at91_remove(struct platform_device *pdev)
 {
         struct ata_host *host = dev_get_drvdata(&pdev->dev);
-        struct at91_ide_info *info = host->private_data;
+        struct at91_ide_info *info;
         struct device *dev = &pdev->dev;
 
         if (!host)
                 return 0;
+        info = host->private_data;
 
         ata_host_detach(host);
 
@@ -325,6 +330,7 @@ static int __devexit pata_at91_remove(struct platform_device *pdev)
 
         devm_iounmap(dev, info->ide_addr);
         devm_iounmap(dev, info->alt_addr);
+        clk_put(info->mck);
 
         kfree(info);
         return 0;
diff --git a/drivers/ata/pata_octeon_cf.c b/drivers/ata/pata_octeon_cf.c
index 8d9343accf3c..abdd19fe990a 100644
--- a/drivers/ata/pata_octeon_cf.c
+++ b/drivers/ata/pata_octeon_cf.c
@@ -653,7 +653,8 @@ static irqreturn_t octeon_cf_interrupt(int irq, void *dev_instance)
 
                 ap = host->ports[i];
                 ocd = ap->dev->platform_data;
-                if (!ap || (ap->flags & ATA_FLAG_DISABLED))
+
+                if (ap->flags & ATA_FLAG_DISABLED)
                         continue;
 
                 ocd = ap->dev->platform_data;
diff --git a/drivers/ata/pata_pcmcia.c b/drivers/ata/pata_pcmcia.c
index f4d009ed50ac..dc99e26f8e5b 100644
--- a/drivers/ata/pata_pcmcia.c
+++ b/drivers/ata/pata_pcmcia.c
@@ -411,6 +411,7 @@ static struct pcmcia_device_id pcmcia_devices[] = {
         PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),
         PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),
         PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),
+        PCMCIA_DEVICE_PROD_ID12("CNF   ", "CD-ROM", 0x46d7db81, 0x66536591),
         PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),
         PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),
         PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 23714aefb825..c19417e02208 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -2514,7 +2514,7 @@ static void mv_unexpected_intr(struct ata_port *ap, int edma_was_enabled)
         char *when = "idle";
 
         ata_ehi_clear_desc(ehi);
-        if (!ap || (ap->flags & ATA_FLAG_DISABLED)) {
+        if (ap->flags & ATA_FLAG_DISABLED) {
                 when = "disabled";
         } else if (edma_was_enabled) {
                 when = "EDMA enabled";
diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c
index 030ec079b184..35bd5cc7f285 100644
--- a/drivers/ata/sata_sil.c
+++ b/drivers/ata/sata_sil.c
@@ -532,7 +532,7 @@ static irqreturn_t sil_interrupt(int irq, void *dev_instance)
                 struct ata_port *ap = host->ports[i];
                 u32 bmdma2 = readl(mmio_base + sil_port[ap->port_no].bmdma2);
 
-                if (unlikely(!ap || ap->flags & ATA_FLAG_DISABLED))
+                if (unlikely(ap->flags & ATA_FLAG_DISABLED))
                         continue;
 
                 /* turn off SATA_IRQ if not supported */
diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index e8beb8e5b626..05dd307e8f02 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -428,6 +428,9 @@ int devres_release_all(struct device *dev)
 {
         unsigned long flags;
 
+        /* Looks like an uninitialized device structure */
+        if (WARN_ON(dev->devres_head.next == NULL))
+                return -ENODEV;
         spin_lock_irqsave(&dev->devres_lock, flags);
         return release_nodes(dev, dev->devres_head.next, &dev->devres_head,
                              flags);
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index ddeb819c8f87..7376367bcb80 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -180,7 +180,6 @@ static ssize_t firmware_loading_store(struct device *dev,
                                 goto err;
                         }
                         /* Pages will be freed by vfree() */
-                        fw_priv->pages = NULL;
                         fw_priv->page_array_size = 0;
                         fw_priv->nr_pages = 0;
                         complete(&fw_priv->completion);
@@ -217,8 +216,10 @@ firmware_data_read(struct kobject *kobj, struct bin_attribute *bin_attr,
                 ret_count = -ENODEV;
                 goto out;
         }
-        if (offset > fw->size)
-                return 0;
+        if (offset > fw->size) {
+                ret_count = 0;
+                goto out;
+        }
         if (count > fw->size - offset)
                 count = fw->size - offset;
 
@@ -357,7 +358,7 @@ static void fw_dev_release(struct device *dev)
         kfree(fw_priv->pages);
         kfree(fw_priv->fw_id);
         kfree(fw_priv);
-        put_device(dev);
+        kfree(dev);
 
         module_put(THIS_MODULE);
 }
@@ -408,13 +409,11 @@ static int fw_register_device(struct device **dev_p, const char *fw_name,
         if (retval) {
                 dev_err(device, "%s: device_register failed\n", __func__);
                 put_device(f_dev);
-                goto error_kfree_fw_id;
+                return retval;
         }
         *dev_p = f_dev;
         return 0;
 
-error_kfree_fw_id:
-        kfree(fw_priv->fw_id);
 error_kfree:
         kfree(f_dev);
         kfree(fw_priv);
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index fae725458981..58a3e572f2c9 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -762,6 +762,7 @@ static int dpm_prepare(pm_message_t state)
                         dev->power.status = DPM_ON;
                         if (error == -EAGAIN) {
                                 put_device(dev);
+                                error = 0;
                                 continue;
                         }
                         printk(KERN_ERR "PM: Failed to prepare device %s "
diff --git a/drivers/base/sys.c b/drivers/base/sys.c
index 79a9ae5238ac..0d903909af7e 100644
--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c
@@ -275,9 +275,9 @@ int sysdev_register(struct sys_device *sysdev)
                                 drv->add(sysdev);
                 }
                 mutex_unlock(&sysdev_drivers_lock);
+                kobject_uevent(&sysdev->kobj, KOBJ_ADD);
         }
 
-        kobject_uevent(&sysdev->kobj, KOBJ_ADD);
         return error;
 }
 
diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
index 668dc234b8e2..1e6b7c14f697 100644
--- a/drivers/block/DAC960.c
+++ b/drivers/block/DAC960.c
@@ -36,6 +36,7 @@
 #include <linux/ioport.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/proc_fs.h>
 #include <linux/reboot.h>
 #include <linux/spinlock.h>
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index bb72ada9f074..1d886e079c58 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -298,6 +298,22 @@ config BLK_DEV_NBD
 
           If unsure, say N.
 
+config BLK_DEV_OSD
+        tristate "OSD object-as-blkdev support"
+        depends on SCSI_OSD_ULD
+        ---help---
+          Saying Y or M here will allow the exporting of a single SCSI
+          OSD (object-based storage) object as a Linux block device.
+
+          For example, if you create a 2G object on an OSD device,
+          you can then use this module to present that 2G object as
+          a Linux block device.
+
+          To compile this driver as a module, choose M here: the
+          module will be called osdblk.
+
+          If unsure, say N.
+
 config BLK_DEV_SX8
         tristate "Promise SATA SX8 support"
         depends on PCI
diff --git a/drivers/block/Makefile b/drivers/block/Makefile
index 7755a5e2a85e..cdaa3f8fddf0 100644
--- a/drivers/block/Makefile
+++ b/drivers/block/Makefile
@@ -23,6 +23,7 @@ obj-$(CONFIG_XILINX_SYSACE)	+= xsysace.o
 obj-$(CONFIG_CDROM_PKTCDVD)     += pktcdvd.o
 obj-$(CONFIG_MG_DISK)           += mg_disk.o
 obj-$(CONFIG_SUNVDC)            += sunvdc.o
+obj-$(CONFIG_BLK_DEV_OSD)       += osdblk.o
 
 obj-$(CONFIG_BLK_DEV_UMEM)      += umem.o
 obj-$(CONFIG_BLK_DEV_NBD)       += nbd.o
diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c
index 9c6e5b0fe894..2f07b7c99a95 100644
--- a/drivers/block/amiflop.c
+++ b/drivers/block/amiflop.c
@@ -1645,7 +1645,7 @@ static int __init fd_probe_drives(void)
 {
         int drive,drives,nomem;
 
-        printk(KERN_INFO "FD: probing units\n" KERN_INFO "found ");
+        printk(KERN_INFO "FD: probing units\nfound ");
         drives=0;
         nomem=0;
         for(drive=0;drive<FD_MAX_UNITS;drive++) {
diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index f5e7180d7f47..3ff02941b3dd 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -1627,7 +1627,7 @@ static int fd_ioctl(struct block_device *bdev, fmode_t mode,
                                 drive, dtp->blocks, dtp->spt, dtp->stretch);
 
                 /* sanity check */
-                if (!dtp || setprm.track != dtp->blocks/dtp->spt/2 ||
+                if (setprm.track != dtp->blocks/dtp->spt/2 ||
                     setprm.head != 2) {
                         redo_fd_request();
                         return -EINVAL;
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index c7a527c08a09..a52cc7fe45ea 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -26,6 +26,7 @@
 #include <linux/pci.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/delay.h>
 #include <linux/major.h>
 #include <linux/fs.h>
@@ -226,8 +227,18 @@ static inline void addQ(struct hlist_head *list, CommandList_struct *c)
 
 static inline void removeQ(CommandList_struct *c)
 {
-        if (WARN_ON(hlist_unhashed(&c->list)))
+        /*
+         * After kexec/dump some commands might still
+         * be in flight, which the firmware will try
+         * to complete. Resetting the firmware doesn't work
+         * with old fw revisions, so we have to mark
+         * them off as 'stale' to prevent the driver from
+         * falling over.
+         */
+        if (WARN_ON(hlist_unhashed(&c->list))) {
+                c->cmd_type = CMD_MSG_STALE;
                 return;
+        }
 
         hlist_del_init(&c->list);
 }
@@ -4246,7 +4257,8 @@ static void fail_all_cmds(unsigned long ctlr)
         while (!hlist_empty(&h->cmpQ)) {
                 c = hlist_entry(h->cmpQ.first, CommandList_struct, list);
                 removeQ(c);
-                c->err_info->CommandStatus = CMD_HARDWARE_ERR;
+                if (c->cmd_type != CMD_MSG_STALE)
+                        c->err_info->CommandStatus = CMD_HARDWARE_ERR;
                 if (c->cmd_type == CMD_RWREQ) {
                         complete_command(h, c, 0);
                 } else if (c->cmd_type == CMD_IOCTL_PEND)
diff --git a/drivers/block/cciss_cmd.h b/drivers/block/cciss_cmd.h
index cd665b00c7c5..dbaed1ea0da3 100644
--- a/drivers/block/cciss_cmd.h
+++ b/drivers/block/cciss_cmd.h
@@ -274,6 +274,7 @@ typedef struct _ErrorInfo_struct {
 #define CMD_SCSI        0x03
 #define CMD_MSG_DONE    0x04
 #define CMD_MSG_TIMEOUT 0x05
+#define CMD_MSG_STALE   0xff
 
 /* This structure needs to be divisible by 8 for new
  * indexing method.
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 862b40c90181..91b753013780 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3327,7 +3327,10 @@ static inline int set_geometry(unsigned int cmd, struct floppy_struct *g,
                 if (!capable(CAP_SYS_ADMIN))
                         return -EPERM;
                 mutex_lock(&open_lock);
-                LOCK_FDC(drive, 1);
+                if (lock_fdc(drive, 1)) {
+                        mutex_unlock(&open_lock);
+                        return -EINTR;
+                }
                 floppy_type[type] = *g;
                 floppy_type[type].name = "user format";
                 for (cnt = type << 2; cnt < (type << 2) + 4; cnt++)
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 801f4ab83302..5757188cd1fb 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -61,7 +61,6 @@
 #include <linux/blkdev.h>
 #include <linux/blkpg.h>
 #include <linux/init.h>
-#include <linux/smp_lock.h>
 #include <linux/swap.h>
 #include <linux/slab.h>
 #include <linux/loop.h>
diff --git a/drivers/block/mg_disk.c b/drivers/block/mg_disk.c
index f703f5478246..6d7fbaa92248 100644
--- a/drivers/block/mg_disk.c
+++ b/drivers/block/mg_disk.c
@@ -36,7 +36,6 @@
 
 /* Register offsets */
 #define MG_BUFF_OFFSET                  0x8000
-#define MG_STORAGE_BUFFER_SIZE          0x200
 #define MG_REG_OFFSET                   0xC000
 #define MG_REG_FEATURE                  (MG_REG_OFFSET + 2)     /* write case */
 #define MG_REG_ERROR                    (MG_REG_OFFSET + 2)     /* read case */
@@ -219,6 +218,16 @@ static unsigned int mg_wait(struct mg_host *host, u32 expect, u32 msec)
         host->error = MG_ERR_NONE;
         expire = jiffies + msecs_to_jiffies(msec);
 
+        /* These 2 times dummy status read prevents reading invalid
+         * status. A very little time (3 times of mflash operating clk)
+         * is required for busy bit is set. Use dummy read instead of
+         * busy wait, because mflash's PLL is machine dependent.
+         */
+        if (prv_data->use_polling) {
+                status = inb((unsigned long)host->dev_base + MG_REG_STATUS);
+                status = inb((unsigned long)host->dev_base + MG_REG_STATUS);
+        }
+
         status = inb((unsigned long)host->dev_base + MG_REG_STATUS);
 
         do {
@@ -245,8 +254,6 @@ static unsigned int mg_wait(struct mg_host *host, u32 expect, u32 msec)
                         mg_dump_status("not ready", status, host);
                         return MG_ERR_INV_STAT;
                 }
-                if (prv_data->use_polling)
-                        msleep(1);
 
                 status = inb((unsigned long)host->dev_base + MG_REG_STATUS);
         } while (time_before(cur_jiffies, expire));
@@ -469,9 +476,18 @@ static unsigned int mg_out(struct mg_host *host,
         return MG_ERR_NONE;
 }
 
+static void mg_read_one(struct mg_host *host, struct request *req)
+{
+        u16 *buff = (u16 *)req->buffer;
+        u32 i;
+
+        for (i = 0; i < MG_SECTOR_SIZE >> 1; i++)
+                *buff++ = inw((unsigned long)host->dev_base + MG_BUFF_OFFSET +
+                              (i << 1));
+}
+
 static void mg_read(struct request *req)
 {
-        u32 j;
         struct mg_host *host = req->rq_disk->private_data;
 
         if (mg_out(host, blk_rq_pos(req), blk_rq_sectors(req),
@@ -482,49 +498,65 @@ static void mg_read(struct request *req)
                blk_rq_sectors(req), blk_rq_pos(req), req->buffer);
 
         do {
-                u16 *buff = (u16 *)req->buffer;
-
                 if (mg_wait(host, ATA_DRQ,
                             MG_TMAX_WAIT_RD_DRQ) != MG_ERR_NONE) {
                         mg_bad_rw_intr(host);
                         return;
                 }
-                for (j = 0; j < MG_SECTOR_SIZE >> 1; j++)
-                        *buff++ = inw((unsigned long)host->dev_base +
-                                      MG_BUFF_OFFSET + (j << 1));
+
+                mg_read_one(host, req);
 
                 outb(MG_CMD_RD_CONF, (unsigned long)host->dev_base +
                                 MG_REG_COMMAND);
         } while (mg_end_request(host, 0, MG_SECTOR_SIZE));
 }
 
+static void mg_write_one(struct mg_host *host, struct request *req)
+{
+        u16 *buff = (u16 *)req->buffer;
+        u32 i;
+
+        for (i = 0; i < MG_SECTOR_SIZE >> 1; i++)
+                outw(*buff++, (unsigned long)host->dev_base + MG_BUFF_OFFSET +
+                     (i << 1));
+}
+
 static void mg_write(struct request *req)
 {
-        u32 j;
         struct mg_host *host = req->rq_disk->private_data;
+        unsigned int rem = blk_rq_sectors(req);
 
-        if (mg_out(host, blk_rq_pos(req), blk_rq_sectors(req),
+        if (mg_out(host, blk_rq_pos(req), rem,
                    MG_CMD_WR, NULL) != MG_ERR_NONE) {
                 mg_bad_rw_intr(host);
                 return;
         }
 
         MG_DBG("requested %d sects (from %ld), buffer=0x%p\n",
-               blk_rq_sectors(req), blk_rq_pos(req), req->buffer);
+               rem, blk_rq_pos(req), req->buffer);
+
+        if (mg_wait(host, ATA_DRQ,
+                    MG_TMAX_WAIT_WR_DRQ) != MG_ERR_NONE) {
+                mg_bad_rw_intr(host);
+                return;
+        }
 
         do {
-                u16 *buff = (u16 *)req->buffer;
+                mg_write_one(host, req);
 
-        if (mg_wait(host, ATA_DRQ, MG_TMAX_WAIT_WR_DRQ) != MG_ERR_NONE) {
+                outb(MG_CMD_WR_CONF, (unsigned long)host->dev_base +
+                                MG_REG_COMMAND);
+
+                rem--;
+                if (rem > 1 && mg_wait(host, ATA_DRQ,
+                                        MG_TMAX_WAIT_WR_DRQ) != MG_ERR_NONE) {
+                        mg_bad_rw_intr(host);
+                        return;
+                } else if (mg_wait(host, MG_STAT_READY,
+                                        MG_TMAX_WAIT_WR_DRQ) != MG_ERR_NONE) {
                         mg_bad_rw_intr(host);
                         return;
                 }
-                for (j = 0; j < MG_SECTOR_SIZE >> 1; j++)
-                        outw(*buff++, (unsigned long)host->dev_base +
-                                      MG_BUFF_OFFSET + (j << 1));
-
-                outb(MG_CMD_WR_CONF, (unsigned long)host->dev_base +
-                                MG_REG_COMMAND);
         } while (mg_end_request(host, 0, MG_SECTOR_SIZE));
 }
 
@@ -532,7 +564,6 @@ static void mg_read_intr(struct mg_host *host)
 {
         struct request *req = host->req;
         u32 i;
-        u16 *buff;
 
         /* check status */
         do {
@@ -550,13 +581,7 @@ static void mg_read_intr(struct mg_host *host)
         return;
 
 ok_to_read:
-        /* get current segment of request */
-        buff = (u16 *)req->buffer;
-
-        /* read 1 sector */
-        for (i = 0; i < MG_SECTOR_SIZE >> 1; i++)
-                *buff++ = inw((unsigned long)host->dev_base + MG_BUFF_OFFSET +
-                              (i << 1));
+        mg_read_one(host, req);
 
         MG_DBG("sector %ld, remaining=%ld, buffer=0x%p\n",
                blk_rq_pos(req), blk_rq_sectors(req) - 1, req->buffer);
@@ -575,8 +600,7 @@ ok_to_read:
 static void mg_write_intr(struct mg_host *host)
 {
         struct request *req = host->req;
-        u32 i, j;
-        u16 *buff;
+        u32 i;
         bool rem;
 
         /* check status */
@@ -597,12 +621,7 @@ static void mg_write_intr(struct mg_host *host)
 ok_to_write:
         if ((rem = mg_end_request(host, 0, MG_SECTOR_SIZE))) {
                 /* write 1 sector and set handler if remains */
-                buff = (u16 *)req->buffer;
-                for (j = 0; j < MG_STORAGE_BUFFER_SIZE >> 1; j++) {
-                        outw(*buff, (unsigned long)host->dev_base +
-                                        MG_BUFF_OFFSET + (j << 1));
-                        buff++;
-                }
+                mg_write_one(host, req);
                 MG_DBG("sector %ld, remaining=%ld, buffer=0x%p\n",
                        blk_rq_pos(req), blk_rq_sectors(req), req->buffer);
                 host->mg_do_intr = mg_write_intr;
@@ -667,9 +686,6 @@ static unsigned int mg_issue_req(struct request *req,
                 unsigned int sect_num,
                 unsigned int sect_cnt)
 {
-        u16 *buff;
-        u32 i;
-
         switch (rq_data_dir(req)) {
         case READ:
                 if (mg_out(host, sect_num, sect_cnt, MG_CMD_RD, &mg_read_intr)
@@ -693,12 +709,7 @@ static unsigned int mg_issue_req(struct request *req,
                         mg_bad_rw_intr(host);
                         return host->error;
                 }
-                buff = (u16 *)req->buffer;
-                for (i = 0; i < MG_SECTOR_SIZE >> 1; i++) {
-                        outw(*buff, (unsigned long)host->dev_base +
-                                        MG_BUFF_OFFSET + (i << 1));
-                        buff++;
-                }
+                mg_write_one(host, req);
                 mod_timer(&host->timer, jiffies + 3 * HZ);
                 outb(MG_CMD_WR_CONF, (unsigned long)host->dev_base +
                                 MG_REG_COMMAND);
diff --git a/drivers/block/osdblk.c b/drivers/block/osdblk.c
new file mode 100644
index 000000000000..13c1aee6aa3f
--- /dev/null
+++ b/drivers/block/osdblk.c
@@ -0,0 +1,701 @@
+
+/*
+   osdblk.c -- Export a single SCSI OSD object as a Linux block device
+
+
+   Copyright 2009 Red Hat, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.  If not, write to
+   the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+
+   Instructions for use
+   --------------------
+
+   1) Map a Linux block device to an existing OSD object.
+
+      In this example, we will use partition id 1234, object id 5678,
+      OSD device /dev/osd1.
+
+      $ echo "1234 5678 /dev/osd1" > /sys/class/osdblk/add
+
+
+   2) List all active blkdev<->object mappings.
+
+      In this example, we have performed step #1 twice, creating two blkdevs,
+      mapped to two separate OSD objects.
+
+      $ cat /sys/class/osdblk/list
+      0 174 1234 5678 /dev/osd1
+      1 179 1994 897123 /dev/osd0
+
+      The columns, in order, are:
+      - blkdev unique id
+      - blkdev assigned major
+      - OSD object partition id
+      - OSD object id
+      - OSD device
+
+
+   3) Remove an active blkdev<->object mapping.
+
+      In this example, we remove the mapping with blkdev unique id 1.
+
+      $ echo 1 > /sys/class/osdblk/remove
+
+
+   NOTE:  The actual creation and deletion of OSD objects is outside the scope
+   of this driver.
+
+ */
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <scsi/osd_initiator.h>
+#include <scsi/osd_attributes.h>
+#include <scsi/osd_sec.h>
+#include <scsi/scsi_device.h>
+
+#define DRV_NAME "osdblk"
+#define PFX DRV_NAME ": "
+
+/* #define _OSDBLK_DEBUG */
+#ifdef _OSDBLK_DEBUG
+#define OSDBLK_DEBUG(fmt, a...) \
+        printk(KERN_NOTICE "osdblk @%s:%d: " fmt, __func__, __LINE__, ##a)
+#else
+#define OSDBLK_DEBUG(fmt, a...) \
+        do { if (0) printk(fmt, ##a); } while (0)
+#endif
+
+MODULE_AUTHOR("Jeff Garzik <jeff@garzik.org>");
+MODULE_DESCRIPTION("block device inside an OSD object osdblk.ko");
+MODULE_LICENSE("GPL");
+
+struct osdblk_device;
+
+enum {
+        OSDBLK_MINORS_PER_MAJOR = 256,          /* max minors per blkdev */
+        OSDBLK_MAX_REQ          = 32,           /* max parallel requests */
+        OSDBLK_OP_TIMEOUT       = 4 * 60,       /* sync OSD req timeout */
+};
+
+struct osdblk_request {
+        struct request          *rq;            /* blk layer request */
+        struct bio              *bio;           /* cloned bio */
+        struct osdblk_device    *osdev;         /* associated blkdev */
+};
+
+struct osdblk_device {
+        int                     id;             /* blkdev unique id */
+
+        int                     major;          /* blkdev assigned major */
+        struct gendisk          *disk;          /* blkdev's gendisk and rq */
+        struct request_queue    *q;
+
+        struct osd_dev          *osd;           /* associated OSD */
+
+        char                    name[32];       /* blkdev name, e.g. osdblk34 */
+
+        spinlock_t              lock;           /* queue lock */
+
+        struct osd_obj_id       obj;            /* OSD partition, obj id */
+        uint8_t                 obj_cred[OSD_CAP_LEN]; /* OSD cred */
+
+        struct osdblk_request   req[OSDBLK_MAX_REQ]; /* request table */
+
+        struct list_head        node;
+
+        char                    osd_path[0];    /* OSD device path */
+};
+
+static struct class *class_osdblk;              /* /sys/class/osdblk */
+static DEFINE_MUTEX(ctl_mutex); /* Serialize open/close/setup/teardown */
+static LIST_HEAD(osdblkdev_list);
+
+static struct block_device_operations osdblk_bd_ops = {
+        .owner          = THIS_MODULE,
+};
+
+static const struct osd_attr g_attr_logical_length = ATTR_DEF(
+        OSD_APAGE_OBJECT_INFORMATION, OSD_ATTR_OI_LOGICAL_LENGTH, 8);
+
+static void osdblk_make_credential(u8 cred_a[OSD_CAP_LEN],
+                                   const struct osd_obj_id *obj)
+{
+        osd_sec_init_nosec_doall_caps(cred_a, obj, false, true);
+}
+
+/* copied from exofs; move to libosd? */
+/*
+ * Perform a synchronous OSD operation.  copied from exofs; move to libosd?
+ */
+static int osd_sync_op(struct osd_request *or, int timeout, uint8_t *credential)
+{
+        int ret;
+
+        or->timeout = timeout;
+        ret = osd_finalize_request(or, 0, credential, NULL);
+        if (ret)
+                return ret;
+
+        ret = osd_execute_request(or);
+
+        /* osd_req_decode_sense(or, ret); */
+        return ret;
+}
+
+/*
+ * Perform an asynchronous OSD operation.  copied from exofs; move to libosd?
+ */
+static int osd_async_op(struct osd_request *or, osd_req_done_fn *async_done,
+                   void *caller_context, u8 *cred)
+{
+        int ret;
+
+        ret = osd_finalize_request(or, 0, cred, NULL);
+        if (ret)
+                return ret;
+
+        ret = osd_execute_request_async(or, async_done, caller_context);
+
+        return ret;
+}
+
+/* copied from exofs; move to libosd? */
+static int extract_attr_from_req(struct osd_request *or, struct osd_attr *attr)
+{
+        struct osd_attr cur_attr = {.attr_page = 0}; /* start with zeros */
+        void *iter = NULL;
+        int nelem;
+
+        do {
+                nelem = 1;
+                osd_req_decode_get_attr_list(or, &cur_attr, &nelem, &iter);
+                if ((cur_attr.attr_page == attr->attr_page) &&
+                    (cur_attr.attr_id == attr->attr_id)) {
+                        attr->len = cur_attr.len;
+                        attr->val_ptr = cur_attr.val_ptr;
+                        return 0;
+                }
+        } while (iter);
+
+        return -EIO;
+}
+
+static int osdblk_get_obj_size(struct osdblk_device *osdev, u64 *size_out)
+{
+        struct osd_request *or;
+        struct osd_attr attr;
+        int ret;
+
+        /* start request */
+        or = osd_start_request(osdev->osd, GFP_KERNEL);
+        if (!or)
+                return -ENOMEM;
+
+        /* create a get-attributes(length) request */
+        osd_req_get_attributes(or, &osdev->obj);
+
+        osd_req_add_get_attr_list(or, &g_attr_logical_length, 1);
+
+        /* execute op synchronously */
+        ret = osd_sync_op(or, OSDBLK_OP_TIMEOUT, osdev->obj_cred);
+        if (ret)
+                goto out;
+
+        /* extract length from returned attribute info */
+        attr = g_attr_logical_length;
+        ret = extract_attr_from_req(or, &attr);
+        if (ret)
+                goto out;
+
+        *size_out = get_unaligned_be64(attr.val_ptr);
+
+out:
+        osd_end_request(or);
+        return ret;
+
+}
+
+static void osdblk_osd_complete(struct osd_request *or, void *private)
+{
+        struct osdblk_request *orq = private;
+        struct osd_sense_info osi;
+        int ret = osd_req_decode_sense(or, &osi);
+
+        if (ret) {
+                ret = -EIO;
+                OSDBLK_DEBUG("osdblk_osd_complete with err=%d\n", ret);
+        }
+
+        /* complete OSD request */
+        osd_end_request(or);
+
+        /* complete request passed to osdblk by block layer */
+        __blk_end_request_all(orq->rq, ret);
+}
+
+static void bio_chain_put(struct bio *chain)
+{
+        struct bio *tmp;
+
+        while (chain) {
+                tmp = chain;
+                chain = chain->bi_next;
+
+                bio_put(tmp);
+        }
+}
+
+static struct bio *bio_chain_clone(struct bio *old_chain, gfp_t gfpmask)
+{
+        struct bio *tmp, *new_chain = NULL, *tail = NULL;
+
+        while (old_chain) {
+                tmp = bio_kmalloc(gfpmask, old_chain->bi_max_vecs);
+                if (!tmp)
+                        goto err_out;
+
+                __bio_clone(tmp, old_chain);
+                tmp->bi_bdev = NULL;
+                gfpmask &= ~__GFP_WAIT;
+                tmp->bi_next = NULL;
+
+                if (!new_chain)
+                        new_chain = tail = tmp;
+                else {
+                        tail->bi_next = tmp;
+                        tail = tmp;
+                }
+
+                old_chain = old_chain->bi_next;
+        }
+
+        return new_chain;
+
+err_out:
+        OSDBLK_DEBUG("bio_chain_clone with err\n");
+        bio_chain_put(new_chain);
+        return NULL;
+}
+
+static void osdblk_rq_fn(struct request_queue *q)
+{
+        struct osdblk_device *osdev = q->queuedata;
+
+        while (1) {
+                struct request *rq;
+                struct osdblk_request *orq;
+                struct osd_request *or;
+                struct bio *bio;
+                bool do_write, do_flush;
+
+                /* peek at request from block layer */
+                rq = blk_fetch_request(q);
+                if (!rq)
+                        break;
+
+                /* filter out block requests we don't understand */
+                if (!blk_fs_request(rq) && !blk_barrier_rq(rq)) {
+                        blk_end_request_all(rq, 0);
+                        continue;
+                }
+
+                /* deduce our operation (read, write, flush) */
+                /* I wish the block layer simplified cmd_type/cmd_flags/cmd[]
+                 * into a clearly defined set of RPC commands:
+                 * read, write, flush, scsi command, power mgmt req,
+                 * driver-specific, etc.
+                 */
+
+                do_flush = (rq->special == (void *) 0xdeadbeefUL);
+                do_write = (rq_data_dir(rq) == WRITE);
+
+                if (!do_flush) { /* osd_flush does not use a bio */
+                        /* a bio clone to be passed down to OSD request */
+                        bio = bio_chain_clone(rq->bio, GFP_ATOMIC);
+                        if (!bio)
+                                break;
+                } else
+                        bio = NULL;
+
+                /* alloc internal OSD request, for OSD command execution */
+                or = osd_start_request(osdev->osd, GFP_ATOMIC);
+                if (!or) {
+                        bio_chain_put(bio);
+                        OSDBLK_DEBUG("osd_start_request with err\n");
+                        break;
+                }
+
+                orq = &osdev->req[rq->tag];
+                orq->rq = rq;
+                orq->bio = bio;
+                orq->osdev = osdev;
+
+                /* init OSD command: flush, write or read */
+                if (do_flush)
+                        osd_req_flush_object(or, &osdev->obj,
+                                             OSD_CDB_FLUSH_ALL, 0, 0);
+                else if (do_write)
+                        osd_req_write(or, &osdev->obj, blk_rq_pos(rq) * 512ULL,
+                                      bio, blk_rq_bytes(rq));
+                else
+                        osd_req_read(or, &osdev->obj, blk_rq_pos(rq) * 512ULL,
+                                     bio, blk_rq_bytes(rq));
+
+                OSDBLK_DEBUG("%s 0x%x bytes at 0x%llx\n",
+                        do_flush ? "flush" : do_write ?
+                                "write" : "read", blk_rq_bytes(rq),
+                        blk_rq_pos(rq) * 512ULL);
+
+                /* begin OSD command execution */
+                if (osd_async_op(or, osdblk_osd_complete, orq,
+                                 osdev->obj_cred)) {
+                        osd_end_request(or);
+                        blk_requeue_request(q, rq);
+                        bio_chain_put(bio);
+                        OSDBLK_DEBUG("osd_execute_request_async with err\n");
+                        break;
+                }
+
+                /* remove the special 'flush' marker, now that the command
+                 * is executing
+                 */
+                rq->special = NULL;
+        }
+}
+
+static void osdblk_prepare_flush(struct request_queue *q, struct request *rq)
+{
+        /* add driver-specific marker, to indicate that this request
+         * is a flush command
+         */
+        rq->special = (void *) 0xdeadbeefUL;
+}
+
+static void osdblk_free_disk(struct osdblk_device *osdev)
+{
+        struct gendisk *disk = osdev->disk;
+
+        if (!disk)
+                return;
+
+        if (disk->flags & GENHD_FL_UP)
+                del_gendisk(disk);
+        if (disk->queue)
+                blk_cleanup_queue(disk->queue);
+        put_disk(disk);
+}
+
+static int osdblk_init_disk(struct osdblk_device *osdev)
+{
+        struct gendisk *disk;
+        struct request_queue *q;
+        int rc;
+        u64 obj_size = 0;
+
+        /* contact OSD, request size info about the object being mapped */
+        rc = osdblk_get_obj_size(osdev, &obj_size);
+        if (rc)
+                return rc;
+
+        /* create gendisk info */
+        disk = alloc_disk(OSDBLK_MINORS_PER_MAJOR);
+        if (!disk)
+                return -ENOMEM;
+
+        sprintf(disk->disk_name, DRV_NAME "%d", osdev->id);
+        disk->major = osdev->major;
+        disk->first_minor = 0;
+        disk->fops = &osdblk_bd_ops;
+        disk->private_data = osdev;
+
+        /* init rq */
+        q = blk_init_queue(osdblk_rq_fn, &osdev->lock);
+        if (!q) {
+                put_disk(disk);
+                return -ENOMEM;
+        }
+
+        /* switch queue to TCQ mode; allocate tag map */
+        rc = blk_queue_init_tags(q, OSDBLK_MAX_REQ, NULL);
+        if (rc) {
+                blk_cleanup_queue(q);
+                put_disk(disk);
+                return rc;
+        }
+
+        /* Set our limits to the lower device limits, because osdblk cannot
+         * sleep when allocating a lower-request and therefore cannot be
+         * bouncing.
+         */
+        blk_queue_stack_limits(q, osd_request_queue(osdev->osd));
+
+        blk_queue_prep_rq(q, blk_queue_start_tag);
+        blk_queue_ordered(q, QUEUE_ORDERED_DRAIN_FLUSH, osdblk_prepare_flush);
+
+        disk->queue = q;
+
+        q->queuedata = osdev;
+
+        osdev->disk = disk;
+        osdev->q = q;
+
+        /* finally, announce the disk to the world */
+        set_capacity(disk, obj_size / 512ULL);
+        add_disk(disk);
+
+        printk(KERN_INFO "%s: Added of size 0x%llx\n",
+                disk->disk_name, (unsigned long long)obj_size);
+
+        return 0;
+}
+
+/********************************************************************
+ * /sys/class/osdblk/
+ *                   add        map OSD object to blkdev
+ *                   remove     unmap OSD object
+ *                   list       show mappings
+ *******************************************************************/
+
+static void class_osdblk_release(struct class *cls)
+{
+        kfree(cls);
+}
+
+static ssize_t class_osdblk_list(struct class *c, char *data)
+{
+        int n = 0;
+        struct list_head *tmp;
+
+        mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
+
+        list_for_each(tmp, &osdblkdev_list) {
+                struct osdblk_device *osdev;
+
+                osdev = list_entry(tmp, struct osdblk_device, node);
+
+                n += sprintf(data+n, "%d %d %llu %llu %s\n",
+                        osdev->id,
+                        osdev->major,
+                        osdev->obj.partition,
+                        osdev->obj.id,
+                        osdev->osd_path);
+        }
+
+        mutex_unlock(&ctl_mutex);
+        return n;
+}
+
+static ssize_t class_osdblk_add(struct class *c, const char *buf, size_t count)
+{
+        struct osdblk_device *osdev;
+        ssize_t rc;
+        int irc, new_id = 0;
+        struct list_head *tmp;
+
+        if (!try_module_get(THIS_MODULE))
+                return -ENODEV;
+
+        /* new osdblk_device object */
+        osdev = kzalloc(sizeof(*osdev) + strlen(buf) + 1, GFP_KERNEL);
+        if (!osdev) {
+                rc = -ENOMEM;
+                goto err_out_mod;
+        }
+
+        /* static osdblk_device initialization */
+        spin_lock_init(&osdev->lock);
+        INIT_LIST_HEAD(&osdev->node);
+
+        /* generate unique id: find highest unique id, add one */
+
+        mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
+
+        list_for_each(tmp, &osdblkdev_list) {
+                struct osdblk_device *osdev;
+
+                osdev = list_entry(tmp, struct osdblk_device, node);
+                if (osdev->id > new_id)
+                        new_id = osdev->id + 1;
+        }
+
+        osdev->id = new_id;
+
+        /* add to global list */
+        list_add_tail(&osdev->node, &osdblkdev_list);
+
+        mutex_unlock(&ctl_mutex);
+
+        /* parse add command */
+        if (sscanf(buf, "%llu %llu %s", &osdev->obj.partition, &osdev->obj.id,
+                   osdev->osd_path) != 3) {
+                rc = -EINVAL;
+                goto err_out_slot;
+        }
+
+        /* initialize rest of new object */
+        sprintf(osdev->name, DRV_NAME "%d", osdev->id);
+
+        /* contact requested OSD */
+        osdev->osd = osduld_path_lookup(osdev->osd_path);
+        if (IS_ERR(osdev->osd)) {
+                rc = PTR_ERR(osdev->osd);
+                goto err_out_slot;
+        }
+
+        /* build OSD credential */
+        osdblk_make_credential(osdev->obj_cred, &osdev->obj);
+
+        /* register our block device */
+        irc = register_blkdev(0, osdev->name);
+        if (irc < 0) {
+                rc = irc;
+                goto err_out_osd;
+        }
+
+        osdev->major = irc;
+
+        /* set up and announce blkdev mapping */
+        rc = osdblk_init_disk(osdev);
+        if (rc)
+                goto err_out_blkdev;
+
+        return count;
+
+err_out_blkdev:
+        unregister_blkdev(osdev->major, osdev->name);
+err_out_osd:
+        osduld_put_device(osdev->osd);
+err_out_slot:
+        mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
+        list_del_init(&osdev->node);
+        mutex_unlock(&ctl_mutex);
+
+        kfree(osdev);
+err_out_mod:
+        OSDBLK_DEBUG("Error adding device %s\n", buf);
+        module_put(THIS_MODULE);
+        return rc;
+}
+
+static ssize_t class_osdblk_remove(struct class *c, const char *buf,
+                                        size_t count)
+{
+        struct osdblk_device *osdev = NULL;
+        int target_id, rc;
+        unsigned long ul;
+        struct list_head *tmp;
+
+        rc = strict_strtoul(buf, 10, &ul);
+        if (rc)
+                return rc;
+
+        /* convert to int; abort if we lost anything in the conversion */
+        target_id = (int) ul;
+        if (target_id != ul)
+                return -EINVAL;
+
+        /* remove object from list immediately */
+        mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
+
+        list_for_each(tmp, &osdblkdev_list) {
+                osdev = list_entry(tmp, struct osdblk_device, node);
+                if (osdev->id == target_id) {
+                        list_del_init(&osdev->node);
+                        break;
+                }
+                osdev = NULL;
+        }
+
+        mutex_unlock(&ctl_mutex);
+
+        if (!osdev)
+                return -ENOENT;
+
+        /* clean up and free blkdev and associated OSD connection */
+        osdblk_free_disk(osdev);
+        unregister_blkdev(osdev->major, osdev->name);
+        osduld_put_device(osdev->osd);
+        kfree(osdev);
+
+        /* release module ref */
+        module_put(THIS_MODULE);
+
+        return count;
+}
+
+static struct class_attribute class_osdblk_attrs[] = {
+        __ATTR(add,     0200, NULL, class_osdblk_add),
+        __ATTR(remove,  0200, NULL, class_osdblk_remove),
+        __ATTR(list,    0444, class_osdblk_list, NULL),
+        __ATTR_NULL
+};
+
+static int osdblk_sysfs_init(void)
+{
+        int ret = 0;
+
+        /*
+         * create control files in sysfs
+         * /sys/class/osdblk/...
+         */
+        class_osdblk = kzalloc(sizeof(*class_osdblk), GFP_KERNEL);
+        if (!class_osdblk)
+                return -ENOMEM;
+
+        class_osdblk->name = DRV_NAME;
+        class_osdblk->owner = THIS_MODULE;
+        class_osdblk->class_release = class_osdblk_release;
+        class_osdblk->class_attrs = class_osdblk_attrs;
+
+        ret = class_register(class_osdblk);
+        if (ret) {
+                kfree(class_osdblk);
+                class_osdblk = NULL;
+                printk(PFX "failed to create class osdblk\n");
+                return ret;
+        }
+
+        return 0;
+}
+
+static void osdblk_sysfs_cleanup(void)
+{
+        if (class_osdblk)
+                class_destroy(class_osdblk);
+        class_osdblk = NULL;
+}
+
+static int __init osdblk_init(void)
+{
+        int rc;
+
+        rc = osdblk_sysfs_init();
+        if (rc)
+                return rc;
+
+        return 0;
+}
+
+static void __exit osdblk_exit(void)
+{
+        osdblk_sysfs_cleanup();
+}
+
+module_init(osdblk_init);
+module_exit(osdblk_exit);
+
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 83650e00632d..99a506f619b7 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -1372,8 +1372,10 @@ try_next_bio:
         wakeup = (pd->write_congestion_on > 0
                         && pd->bio_queue_size <= pd->write_congestion_off);
         spin_unlock(&pd->lock);
-        if (wakeup)
-                clear_bdi_congested(&pd->disk->queue->backing_dev_info, WRITE);
+        if (wakeup) {
+                clear_bdi_congested(&pd->disk->queue->backing_dev_info,
+                                        BLK_RW_ASYNC);
+        }
 
         pkt->sleep_time = max(PACKET_WAIT_TIME, 1);
         pkt_set_state(pkt, PACKET_WAITING_STATE);
@@ -2592,10 +2594,10 @@ static int pkt_make_request(struct request_queue *q, struct bio *bio)
         spin_lock(&pd->lock);
         if (pd->write_congestion_on > 0
             && pd->bio_queue_size >= pd->write_congestion_on) {
-                set_bdi_congested(&q->backing_dev_info, WRITE);
+                set_bdi_congested(&q->backing_dev_info, BLK_RW_ASYNC);
                 do {
                         spin_unlock(&pd->lock);
-                        congestion_wait(WRITE, HZ);
+                        congestion_wait(BLK_RW_ASYNC, HZ);
                         spin_lock(&pd->lock);
                 } while(pd->bio_queue_size > pd->write_congestion_off);
         }
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 43db3ea15b54..aa1a3d5a3e2b 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -213,7 +213,7 @@ static int virtblk_ioctl(struct block_device *bdev, fmode_t mode,
          * Only allow the generic SCSI ioctls if the host can support it.
          */
         if (!virtio_has_feature(vblk->vdev, VIRTIO_BLK_F_SCSI))
-                return -ENOIOCTLCMD;
+                return -ENOTTY;
 
         return scsi_cmd_ioctl(disk->queue, disk, mode, cmd, argp);
 }
@@ -360,6 +360,9 @@ static int __devinit virtblk_probe(struct virtio_device *vdev)
         blk_queue_max_phys_segments(vblk->disk->queue, vblk->sg_elems-2);
         blk_queue_max_hw_segments(vblk->disk->queue, vblk->sg_elems-2);
 
+        /* No need to bounce any requests */
+        blk_queue_bounce_limit(vblk->disk->queue, BLK_BOUNCE_ANY);
+
         /* No real sector limit. */
         blk_queue_max_sectors(vblk->disk->queue, -1U);
 
@@ -424,7 +427,12 @@ static unsigned int features[] = {
         VIRTIO_BLK_F_SCSI, VIRTIO_BLK_F_IDENTIFY
 };
 
-static struct virtio_driver virtio_blk = {
+/*
+ * virtio_blk causes spurious section mismatch warning by
+ * simultaneously referring to a __devinit and a __devexit function.
+ * Use __refdata to avoid this warning.
+ */
+static struct virtio_driver __refdata virtio_blk = {
         .feature_table = features,
         .feature_table_size = ARRAY_SIZE(features),
         .driver.name =  KBUILD_MODNAME,
diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c
index f08491a3a813..b20abe102a2b 100644
--- a/drivers/block/xsysace.c
+++ b/drivers/block/xsysace.c
@@ -390,9 +390,10 @@ static inline void ace_dump_mem(void *base, int len)
 
 static void ace_dump_regs(struct ace_device *ace)
 {
-        dev_info(ace->dev, "    ctrl:  %.8x  seccnt/cmd: %.4x      ver:%.4x\n"
-                 KERN_INFO "    status:%.8x  mpu_lba:%.8x  busmode:%4x\n"
-                 KERN_INFO "    error: %.8x  cfg_lba:%.8x  fatstat:%.4x\n",
+        dev_info(ace->dev,
+                 "    ctrl:  %.8x  seccnt/cmd: %.4x      ver:%.4x\n"
+                 "    status:%.8x  mpu_lba:%.8x  busmode:%4x\n"
+                 "    error: %.8x  cfg_lba:%.8x  fatstat:%.4x\n",
                  ace_in32(ace, ACE_CTRL),
                  ace_in(ace, ACE_SECCNTCMD),
                  ace_in(ace, ACE_VERSION),
diff --git a/drivers/block/z2ram.c b/drivers/block/z2ram.c
index 4575171e5beb..b2590409f25e 100644
--- a/drivers/block/z2ram.c
+++ b/drivers/block/z2ram.c
@@ -374,7 +374,7 @@ err:
 static void __exit z2_exit(void)
 {
     int i, j;
-    blk_unregister_region(MKDEV(Z2RAM_MAJOR, 0), 256);
+    blk_unregister_region(MKDEV(Z2RAM_MAJOR, 0), Z2MINOR_COUNT);
     unregister_blkdev(Z2RAM_MAJOR, DEVICE_NAME);
     del_gendisk(z2ram_gendisk);
     put_disk(z2ram_gendisk);
diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index 1df9dda2e377..d5cde6d86f89 100644
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -28,7 +28,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/sched.h>
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 0bd01f49cfd8..6a06913b01d3 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -1029,10 +1029,6 @@ config CS5535_GPIO
 
           If compiled as a module, it will be called cs5535_gpio.
 
-config GPIO_VR41XX
-        tristate "NEC VR4100 series General-purpose I/O Unit support"
-        depends on CPU_VR41XX
-
 config RAW_DRIVER
         tristate "RAW driver (/dev/raw/rawN)"
         depends on BLOCK
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index 189efcff08ce..66f779ad4f4c 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -95,7 +95,6 @@ obj-$(CONFIG_SCx200_GPIO)	+= scx200_gpio.o
 obj-$(CONFIG_PC8736x_GPIO)      += pc8736x_gpio.o
 obj-$(CONFIG_NSC_GPIO)          += nsc_gpio.o
 obj-$(CONFIG_CS5535_GPIO)       += cs5535_gpio.o
-obj-$(CONFIG_GPIO_VR41XX)       += vr41xx_giu.o
 obj-$(CONFIG_GPIO_TB0219)       += tb0219.o
 obj-$(CONFIG_TELCLOCK)          += tlclk.o
 
diff --git a/drivers/char/agp/parisc-agp.c b/drivers/char/agp/parisc-agp.c
index f4bb43fb8016..e077701ae3d9 100644
--- a/drivers/char/agp/parisc-agp.c
+++ b/drivers/char/agp/parisc-agp.c
@@ -225,7 +225,7 @@ static const struct agp_bridge_driver parisc_agp_driver = {
         .configure              = parisc_agp_configure,
         .fetch_size             = parisc_agp_fetch_size,
         .tlb_flush              = parisc_agp_tlbflush,
-        .mask_memory            = parisc_agp_mask_memory,
+        .mask_memory            = parisc_agp_page_mask_memory,
         .masks                  = parisc_agp_masks,
         .agp_enable             = parisc_agp_enable,
         .cache_flush            = global_cache_flush,
diff --git a/drivers/char/amiserial.c b/drivers/char/amiserial.c
index 72429b6b2fa8..6c32fbf07164 100644
--- a/drivers/char/amiserial.c
+++ b/drivers/char/amiserial.c
@@ -81,6 +81,7 @@ static char *serial_version = "4.30";
 #include <linux/mm.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/init.h>
 #include <linux/bitops.h>
 
diff --git a/drivers/char/bsr.c b/drivers/char/bsr.c
index 140ea10ecb88..c02db01f736e 100644
--- a/drivers/char/bsr.c
+++ b/drivers/char/bsr.c
@@ -27,6 +27,7 @@
 #include <linux/cdev.h>
 #include <linux/list.h>
 #include <linux/mm.h>
+#include <asm/pgtable.h>
 #include <asm/io.h>
 
 /*
@@ -75,12 +76,13 @@ static struct class *bsr_class;
 static int bsr_major;
 
 enum {
-        BSR_8   = 0,
-        BSR_16  = 1,
-        BSR_64  = 2,
-        BSR_128 = 3,
-        BSR_UNKNOWN = 4,
-        BSR_MAX = 5,
+        BSR_8    = 0,
+        BSR_16   = 1,
+        BSR_64   = 2,
+        BSR_128  = 3,
+        BSR_4096 = 4,
+        BSR_UNKNOWN = 5,
+        BSR_MAX  = 6,
 };
 
 static unsigned bsr_types[BSR_MAX];
@@ -117,15 +119,22 @@ static int bsr_mmap(struct file *filp, struct vm_area_struct *vma)
 {
         unsigned long size   = vma->vm_end - vma->vm_start;
         struct bsr_dev *dev = filp->private_data;
+        int ret;
 
-        if (size > dev->bsr_len || (size & (PAGE_SIZE-1)))
-                return -EINVAL;
-
-        vma->vm_flags |= (VM_IO | VM_DONTEXPAND);
         vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 
-        if (io_remap_pfn_range(vma, vma->vm_start, dev->bsr_addr >> PAGE_SHIFT,
-                               size, vma->vm_page_prot))
+        /* check for the case of a small BSR device and map one 4k page for it*/
+        if (dev->bsr_len < PAGE_SIZE && size == PAGE_SIZE)
+                ret = remap_4k_pfn(vma, vma->vm_start, dev->bsr_addr >> 12,
+                                   vma->vm_page_prot);
+        else if (size <= dev->bsr_len)
+                ret = io_remap_pfn_range(vma, vma->vm_start,
+                                         dev->bsr_addr >> PAGE_SHIFT,
+                                         size, vma->vm_page_prot);
+        else
+                return -EINVAL;
+
+        if (ret)
                 return -EAGAIN;
 
         return 0;
@@ -205,6 +214,11 @@ static int bsr_add_node(struct device_node *bn)
                 cur->bsr_stride = bsr_stride[i];
                 cur->bsr_dev    = MKDEV(bsr_major, i + total_bsr_devs);
 
+                /* if we have a bsr_len of > 4k and less then PAGE_SIZE (64k pages) */
+                /* we can only map 4k of it, so only advertise the 4k in sysfs */
+                if (cur->bsr_len > 4096 && cur->bsr_len < PAGE_SIZE)
+                        cur->bsr_len = 4096;
+
                 switch(cur->bsr_bytes) {
                 case 8:
                         cur->bsr_type = BSR_8;
@@ -218,9 +232,11 @@ static int bsr_add_node(struct device_node *bn)
                 case 128:
                         cur->bsr_type = BSR_128;
                         break;
+                case 4096:
+                        cur->bsr_type = BSR_4096;
+                        break;
                 default:
                         cur->bsr_type = BSR_UNKNOWN;
-                        printk(KERN_INFO "unknown BSR size %d\n",cur->bsr_bytes);
                 }
 
                 cur->bsr_num = bsr_types[cur->bsr_type];
diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index f3366d3f06cf..2dafc2da0648 100644
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -633,6 +633,7 @@
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
 #include <linux/serial.h>
+#include <linux/smp_lock.h>
 #include <linux/major.h>
 #include <linux/string.h>
 #include <linux/fcntl.h>
diff --git a/drivers/char/epca.c b/drivers/char/epca.c
index abef1f7d84fe..ff647ca1c489 100644
--- a/drivers/char/epca.c
+++ b/drivers/char/epca.c
@@ -36,6 +36,7 @@
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/ioport.h>
 #include <linux/interrupt.h>
 #include <linux/uaccess.h>
diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c
index 94e7e3c8c05a..d97779ef72cb 100644
--- a/drivers/char/hvc_console.c
+++ b/drivers/char/hvc_console.c
@@ -552,7 +552,7 @@ static int hvc_chars_in_buffer(struct tty_struct *tty)
         struct hvc_struct *hp = tty->driver_data;
 
         if (!hp)
-                return -1;
+                return 0;
         return hp->n_outbuf;
 }
 
diff --git a/drivers/char/hw_random/intel-rng.c b/drivers/char/hw_random/intel-rng.c
index 5dcbe603eca2..91b53eb1c053 100644
--- a/drivers/char/hw_random/intel-rng.c
+++ b/drivers/char/hw_random/intel-rng.c
@@ -305,10 +305,11 @@ static int __init intel_init_hw_struct(struct intel_rng_hw *intel_rng_hw,
              (BIOS_CNTL_LOCK_ENABLE_MASK|BIOS_CNTL_WRITE_ENABLE_MASK))
             == BIOS_CNTL_LOCK_ENABLE_MASK) {
                 static __initdata /*const*/ char warning[] =
-                        KERN_WARNING PFX "Firmware space is locked read-only. If you can't or\n"
-                        KERN_WARNING PFX "don't want to disable this in firmware setup, and if\n"
-                        KERN_WARNING PFX "you are certain that your system has a functional\n"
-                        KERN_WARNING PFX "RNG, try using the 'no_fwh_detect' option.\n";
+                        KERN_WARNING
+PFX "Firmware space is locked read-only. If you can't or\n"
+PFX "don't want to disable this in firmware setup, and if\n"
+PFX "you are certain that your system has a functional\n"
+PFX "RNG, try using the 'no_fwh_detect' option.\n";
 
                 if (no_fwh_detect)
                         return -ENODEV;
diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c
index 4159292e35cf..4f1f4cd670da 100644
--- a/drivers/char/isicom.c
+++ b/drivers/char/isicom.c
@@ -122,6 +122,7 @@
 #include <linux/fs.h>
 #include <linux/sched.h>
 #include <linux/serial.h>
+#include <linux/smp_lock.h>
 #include <linux/mm.h>
 #include <linux/interrupt.h>
 #include <linux/timer.h>
@@ -1478,10 +1479,10 @@ static int __devinit load_firmware(struct pci_dev *pdev,
                 status = inw(base + 0x4);
                 if (status != 0) {
                         dev_warn(&pdev->dev, "Card%d rejected load header:\n"
-                                KERN_WARNING "Address:0x%x\n"
-                                KERN_WARNING "Count:0x%x\n"
-                                KERN_WARNING "Status:0x%x\n",
-                                index + 1, frame->addr, frame->count, status);
+                                 "Address:0x%x\n"
+                                 "Count:0x%x\n"
+                                 "Status:0x%x\n",
+                                 index + 1, frame->addr, frame->count, status);
                         goto errrelfw;
                 }
                 outsw(base, frame->data, word_count);
@@ -1526,10 +1527,10 @@ static int __devinit load_firmware(struct pci_dev *pdev,
                 status = inw(base + 0x4);
                 if (status != 0) {
                         dev_warn(&pdev->dev, "Card%d rejected verify header:\n"
-                                KERN_WARNING "Address:0x%x\n"
-                                KERN_WARNING "Count:0x%x\n"
-                                KERN_WARNING "Status: 0x%x\n",
-                                index + 1, frame->addr, frame->count, status);
+                                 "Address:0x%x\n"
+                                 "Count:0x%x\n"
+                                 "Status: 0x%x\n",
+                                 index + 1, frame->addr, frame->count, status);
                         goto errrelfw;
                 }
 
diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c
index 0c999f5bb3db..ab2f3349c5c4 100644
--- a/drivers/char/istallion.c
+++ b/drivers/char/istallion.c
@@ -20,6 +20,7 @@
 
 #include <linux/module.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/interrupt.h>
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c
index 65b6ff2442c6..dd0083bbb64a 100644
--- a/drivers/char/moxa.c
+++ b/drivers/char/moxa.c
@@ -34,6 +34,7 @@
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
 #include <linux/major.h>
+#include <linux/smp_lock.h>
 #include <linux/string.h>
 #include <linux/fcntl.h>
 #include <linux/ptrace.h>
diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
index 52d953eb30c3..dbf8d52f31d0 100644
--- a/drivers/char/mxser.c
+++ b/drivers/char/mxser.c
@@ -23,6 +23,7 @@
 #include <linux/errno.h>
 #include <linux/signal.h>
 #include <linux/sched.h>
+#include <linux/smp_lock.h>
 #include <linux/timer.h>
 #include <linux/interrupt.h>
 #include <linux/tty.h>
diff --git a/drivers/char/n_hdlc.c b/drivers/char/n_hdlc.c
index 1c43c8cdee25..c68118efad84 100644
--- a/drivers/char/n_hdlc.c
+++ b/drivers/char/n_hdlc.c
@@ -97,6 +97,7 @@
 #include <linux/slab.h>
 #include <linux/tty.h>
 #include <linux/errno.h>
+#include <linux/smp_lock.h>
 #include <linux/string.h>       /* used in new tty drivers */
 #include <linux/signal.h>       /* used in new tty drivers */
 #include <linux/if.h>
diff --git a/drivers/char/n_r3964.c b/drivers/char/n_r3964.c
index 2e99158ebb8a..6934025a1ac1 100644
--- a/drivers/char/n_r3964.c
+++ b/drivers/char/n_r3964.c
@@ -58,6 +58,7 @@
 #include <linux/ioport.h>
 #include <linux/in.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/tty.h>
 #include <linux/errno.h>
 #include <linux/string.h>       /* used in new tty drivers */
diff --git a/drivers/char/n_tty.c b/drivers/char/n_tty.c
index 94a5d5020abc..973be2f44195 100644
--- a/drivers/char/n_tty.c
+++ b/drivers/char/n_tty.c
@@ -1331,9 +1331,6 @@ handle_newline:
 
 static void n_tty_write_wakeup(struct tty_struct *tty)
 {
-        /* Write out any echoed characters that are still pending */
-        process_echoes(tty);
-
         if (tty->fasync && test_and_clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags))
                 kill_fasync(&tty->fasync, SIGIO, POLL_OUT);
 }
@@ -1586,6 +1583,7 @@ static int n_tty_open(struct tty_struct *tty)
 
 static inline int input_available_p(struct tty_struct *tty, int amt)
 {
+        tty_flush_to_ldisc(tty);
         if (tty->icanon) {
                 if (tty->canon_data)
                         return 1;
diff --git a/drivers/char/nozomi.c b/drivers/char/nozomi.c
index 574f1c79b6e6..ec58d8c387ff 100644
--- a/drivers/char/nozomi.c
+++ b/drivers/char/nozomi.c
@@ -828,7 +828,7 @@ static int receive_data(enum port_type index, struct nozomi *dc)
         struct port *port = &dc->port[index];
         void __iomem *addr = port->dl_addr[port->toggle_dl];
         struct tty_struct *tty = tty_port_tty_get(&port->port);
-        int i;
+        int i, ret;
 
         if (unlikely(!tty)) {
                 DBG1("tty not open for port: %d?", index);
@@ -844,12 +844,14 @@ static int receive_data(enum port_type index, struct nozomi *dc)
 
                 /* disable interrupt in downlink... */
                 disable_transmit_dl(index, dc);
-                return 0;
+                ret = 0;
+                goto put;
         }
 
         if (unlikely(size == 0)) {
                 dev_err(&dc->pdev->dev, "size == 0?\n");
-                return 1;
+                ret = 1;
+                goto put;
         }
 
         tty_buffer_request_room(tty, size);
@@ -871,8 +873,10 @@ static int receive_data(enum port_type index, struct nozomi *dc)
         }
 
         set_bit(index, &dc->flip);
+        ret = 1;
+put:
         tty_kref_put(tty);
-        return 1;
+        return ret;
 }
 
 /* Debug for interrupts */
@@ -1862,16 +1866,14 @@ static s32 ntty_chars_in_buffer(struct tty_struct *tty)
 {
         struct port *port = tty->driver_data;
         struct nozomi *dc = get_dc_by_tty(tty);
-        s32 rval;
+        s32 rval = 0;
 
         if (unlikely(!dc || !port)) {
-                rval = -ENODEV;
                 goto exit_in_buffer;
         }
 
         if (unlikely(!port->port.count)) {
                 dev_err(&dc->pdev->dev, "No tty open?\n");
-                rval = -ENODEV;
                 goto exit_in_buffer;
         }
 
diff --git a/drivers/char/pcmcia/ipwireless/tty.c b/drivers/char/pcmcia/ipwireless/tty.c
index 569f2f7743a7..674b3ab3587d 100644
--- a/drivers/char/pcmcia/ipwireless/tty.c
+++ b/drivers/char/pcmcia/ipwireless/tty.c
@@ -320,10 +320,10 @@ static int ipw_chars_in_buffer(struct tty_struct *linux_tty)
         struct ipw_tty *tty = linux_tty->driver_data;
 
         if (!tty)
-                return -ENODEV;
+                return 0;
 
         if (!tty->open_count)
-                return -EINVAL;
+                return 0;
 
         return tty->tx_bytes_queued;
 }
diff --git a/drivers/char/pty.c b/drivers/char/pty.c
index daebe1ba43d4..6e6942c45f5b 100644
--- a/drivers/char/pty.c
+++ b/drivers/char/pty.c
@@ -22,6 +22,7 @@
 #include <linux/major.h>
 #include <linux/mm.h>
 #include <linux/init.h>
+#include <linux/smp_lock.h>
 #include <linux/sysctl.h>
 #include <linux/device.h>
 #include <linux/uaccess.h>
@@ -75,114 +76,88 @@ static void pty_close(struct tty_struct *tty, struct file *filp)
  */
 static void pty_unthrottle(struct tty_struct *tty)
 {
-        struct tty_struct *o_tty = tty->link;
-
-        if (!o_tty)
-                return;
-
-        tty_wakeup(o_tty);
+        tty_wakeup(tty->link);
         set_bit(TTY_THROTTLED, &tty->flags);
 }
 
-/*
- * WSH 05/24/97: modified to
- *   (1) use space in tty->flip instead of a shared temp buffer
- *       The flip buffers aren't being used for a pty, so there's lots
- *       of space available.  The buffer is protected by a per-pty
- *       semaphore that should almost never come under contention.
- *   (2) avoid redundant copying for cases where count >> receive_room
- * N.B. Calls from user space may now return an error code instead of
- * a count.
+/**
+ *      pty_space       -       report space left for writing
+ *      @to: tty we are writing into
  *
- * FIXME: Our pty_write method is called with our ldisc lock held but
- * not our partners. We can't just wait on the other one blindly without
- * risking deadlocks. At some point when everything has settled down we need
- * to look into making pty_write at least able to sleep over an ldisc change.
+ *      The tty buffers allow 64K but we sneak a peak and clip at 8K this
+ *      allows a lot of overspill room for echo and other fun messes to
+ *      be handled properly
+ */
+
+static int pty_space(struct tty_struct *to)
+{
+        int n = 8192 - to->buf.memory_used;
+        if (n < 0)
+                return 0;
+        return n;
+}
+
+/**
+ *      pty_write               -       write to a pty
+ *      @tty: the tty we write from
+ *      @buf: kernel buffer of data
+ *      @count: bytes to write
  *
- * The return on no ldisc is a bit counter intuitive but the logic works
- * like this. During an ldisc change the other end will flush its buffers. We
- * thus return the full length which is identical to the case where we had
- * proper locking and happened to queue the bytes just before the flush during
- * the ldisc change.
+ *      Our "hardware" write method. Data is coming from the ldisc which
+ *      may be in a non sleeping state. We simply throw this at the other
+ *      end of the link as if we were an IRQ handler receiving stuff for
+ *      the other side of the pty/tty pair.
  */
+
 static int pty_write(struct tty_struct *tty, const unsigned char *buf,
                                                                 int count)
 {
         struct tty_struct *to = tty->link;
-        struct tty_ldisc *ld;
-        int c = count;
+        int c;
 
-        if (!to || tty->stopped)
+        if (tty->stopped)
                 return 0;
-        ld = tty_ldisc_ref(to);
-
-        if (ld) {
-                c = to->receive_room;
-                if (c > count)
-                        c = count;
-                ld->ops->receive_buf(to, buf, NULL, c);
-                tty_ldisc_deref(ld);
+
+        /* This isn't locked but our 8K is quite sloppy so no
+           big deal */
+
+        c = pty_space(to);
+        if (c > count)
+                c = count;
+        if (c > 0) {
+                /* Stuff the data into the input queue of the other end */
+                c = tty_insert_flip_string(to, buf, c);
+                /* And shovel */
+                tty_flip_buffer_push(to);
+                tty_wakeup(tty);
         }
         return c;
 }
 
+/**
+ *      pty_write_room  -       write space
+ *      @tty: tty we are writing from
+ *
+ *      Report how many bytes the ldisc can send into the queue for
+ *      the other device.
+ */
+
 static int pty_write_room(struct tty_struct *tty)
 {
-        struct tty_struct *to = tty->link;
-
-        if (!to || tty->stopped)
-                return 0;
-
-        return to->receive_room;
+        return pty_space(tty->link);
 }
 
-/*
- *      WSH 05/24/97:  Modified for asymmetric MASTER/SLAVE behavior
- *      The chars_in_buffer() value is used by the ldisc select() function
- *      to hold off writing when chars_in_buffer > WAKEUP_CHARS (== 256).
- *      The pty driver chars_in_buffer() Master/Slave must behave differently:
- *
- *      The Master side needs to allow typed-ahead commands to accumulate
- *      while being canonicalized, so we report "our buffer" as empty until
- *      some threshold is reached, and then report the count. (Any count >
- *      WAKEUP_CHARS is regarded by select() as "full".)  To avoid deadlock
- *      the count returned must be 0 if no canonical data is available to be
- *      read. (The N_TTY ldisc.chars_in_buffer now knows this.)
+/**
+ *      pty_chars_in_buffer     -       characters currently in our tx queue
+ *      @tty: our tty
  *
- *      The Slave side passes all characters in raw mode to the Master side's
- *      buffer where they can be read immediately, so in this case we can
- *      return the true count in the buffer.
+ *      Report how much we have in the transmit queue. As everything is
+ *      instantly at the other end this is easy to implement.
  */
+
 static int pty_chars_in_buffer(struct tty_struct *tty)
 {
-        struct tty_struct *to = tty->link;
-        struct tty_ldisc *ld;
-        int count = 0;
-
-        /* We should get the line discipline lock for "tty->link" */
-        if (!to)
-                return 0;
-        /* We cannot take a sleeping reference here without deadlocking with
-           an ldisc change - but it doesn't really matter */
-        ld = tty_ldisc_ref(to);
-        if (ld == NULL)
-                return 0;
-
-        /* The ldisc must report 0 if no characters available to be read */
-        if (ld->ops->chars_in_buffer)
-                count = ld->ops->chars_in_buffer(to);
-
-        tty_ldisc_deref(ld);
-
-        if (tty->driver->subtype == PTY_TYPE_SLAVE)
-                return count;
-
-        /* Master side driver ... if the other side's read buffer is less than
-         * half full, return 0 to allow writers to proceed; otherwise return
-         * the count.  This leaves a comfortable margin to avoid overflow,
-         * and still allows half a buffer's worth of typed-ahead commands.
-         */
-        return (count < N_TTY_BUF_SIZE/2) ? 0 : count;
+        return 0;
 }
 
 /* Set the lock flag on a pty */
@@ -202,20 +177,10 @@ static void pty_flush_buffer(struct tty_struct *tty)
 {
         struct tty_struct *to = tty->link;
         unsigned long flags;
-        struct tty_ldisc *ld;
 
         if (!to)
                 return;
-        ld = tty_ldisc_ref(to);
-
-        /* The other end is changing discipline */
-        if (!ld)
-                return;
-
-        if (ld->ops->flush_buffer)
-                to->ldisc->ops->flush_buffer(to);
-        tty_ldisc_deref(ld);
-
+        /* tty_buffer_flush(to); FIXME */
         if (to->packet) {
                 spin_lock_irqsave(&tty->ctrl_lock, flags);
                 tty->ctrl_status |= TIOCPKT_FLUSHWRITE;
diff --git a/drivers/char/rio/rio_linux.c b/drivers/char/rio/rio_linux.c
index ce81da5b2da9..d58c2eb07f07 100644
--- a/drivers/char/rio/rio_linux.c
+++ b/drivers/char/rio/rio_linux.c
@@ -44,6 +44,7 @@
 #include <linux/delay.h>
 #include <linux/pci.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/miscdevice.h>
 #include <linux/init.h>
 
diff --git a/drivers/char/riscom8.c b/drivers/char/riscom8.c
index 217660451237..171711acf5cd 100644
--- a/drivers/char/riscom8.c
+++ b/drivers/char/riscom8.c
@@ -47,6 +47,7 @@
 #include <linux/init.h>
 #include <linux/delay.h>
 #include <linux/tty_flip.h>
+#include <linux/smp_lock.h>
 #include <linux/spinlock.h>
 #include <linux/device.h>
 
diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c
index 63d5b628477a..0e29a23ec4c5 100644
--- a/drivers/char/rocket.c
+++ b/drivers/char/rocket.c
@@ -73,6 +73,7 @@
 #include <linux/tty_driver.h>
 #include <linux/tty_flip.h>
 #include <linux/serial.h>
+#include <linux/smp_lock.h>
 #include <linux/string.h>
 #include <linux/fcntl.h>
 #include <linux/ptrace.h>
diff --git a/drivers/char/serial167.c b/drivers/char/serial167.c
index f1f24f0ee26f..51e7a46787be 100644
--- a/drivers/char/serial167.c
+++ b/drivers/char/serial167.c
@@ -52,6 +52,7 @@
 #include <linux/interrupt.h>
 #include <linux/serial.h>
 #include <linux/serialP.h>
+#include <linux/smp_lock.h>
 #include <linux/string.h>
 #include <linux/fcntl.h>
 #include <linux/ptrace.h>
diff --git a/drivers/char/specialix.c b/drivers/char/specialix.c
index e72be4190a44..268e17f9ec3f 100644
--- a/drivers/char/specialix.c
+++ b/drivers/char/specialix.c
@@ -87,6 +87,7 @@
 #include <linux/tty_flip.h>
 #include <linux/mm.h>
 #include <linux/serial.h>
+#include <linux/smp_lock.h>
 #include <linux/fcntl.h>
 #include <linux/major.h>
 #include <linux/delay.h>
@@ -1808,10 +1809,10 @@ static int sx_tiocmset(struct tty_struct *tty, struct file *file,
                 if (clear & TIOCM_DTR)
                         port->MSVR &= ~MSVR_DTR;
         }
-        spin_lock_irqsave(&bp->lock, flags);
+        spin_lock(&bp->lock);
         sx_out(bp, CD186x_CAR, port_No(port));
         sx_out(bp, CD186x_MSVR, port->MSVR);
-        spin_unlock_irqrestore(&bp->lock, flags);
+        spin_unlock(&bp->lock);
         spin_unlock_irqrestore(&port->lock, flags);
         func_exit();
         return 0;
@@ -1832,11 +1833,11 @@ static int sx_send_break(struct tty_struct *tty, int length)
         port->break_length = SPECIALIX_TPS / HZ * length;
         port->COR2 |= COR2_ETC;
         port->IER  |= IER_TXRDY;
-        spin_lock_irqsave(&bp->lock, flags);
+        spin_lock(&bp->lock);
         sx_out(bp, CD186x_CAR, port_No(port));
         sx_out(bp, CD186x_COR2, port->COR2);
         sx_out(bp, CD186x_IER, port->IER);
-        spin_unlock_irqrestore(&bp->lock, flags);
+        spin_unlock(&bp->lock);
         spin_unlock_irqrestore(&port->lock, flags);
         sx_wait_CCR(bp);
         spin_lock_irqsave(&bp->lock, flags);
@@ -2022,9 +2023,9 @@ static void sx_unthrottle(struct tty_struct *tty)
         if (sx_crtscts(tty))
                 port->MSVR |= MSVR_DTR;
         /* Else clause: see remark in "sx_throttle"... */
-        spin_lock_irqsave(&bp->lock, flags);
+        spin_lock(&bp->lock);
         sx_out(bp, CD186x_CAR, port_No(port));
-        spin_unlock_irqrestore(&bp->lock, flags);
+        spin_unlock(&bp->lock);
         if (I_IXOFF(tty)) {
                 spin_unlock_irqrestore(&port->lock, flags);
                 sx_wait_CCR(bp);
@@ -2034,9 +2035,9 @@ static void sx_unthrottle(struct tty_struct *tty)
                 sx_wait_CCR(bp);
                 spin_lock_irqsave(&port->lock, flags);
         }
-        spin_lock_irqsave(&bp->lock, flags);
+        spin_lock(&bp->lock);
         sx_out(bp, CD186x_MSVR, port->MSVR);
-        spin_unlock_irqrestore(&bp->lock, flags);
+        spin_unlock(&bp->lock);
         spin_unlock_irqrestore(&port->lock, flags);
 
         func_exit();
@@ -2060,10 +2061,10 @@ static void sx_stop(struct tty_struct *tty)
 
         spin_lock_irqsave(&port->lock, flags);
         port->IER &= ~IER_TXRDY;
-        spin_lock_irqsave(&bp->lock, flags);
+        spin_lock(&bp->lock);
         sx_out(bp, CD186x_CAR, port_No(port));
         sx_out(bp, CD186x_IER, port->IER);
-        spin_unlock_irqrestore(&bp->lock, flags);
+        spin_unlock(&bp->lock);
         spin_unlock_irqrestore(&port->lock, flags);
 
         func_exit();
@@ -2088,10 +2089,10 @@ static void sx_start(struct tty_struct *tty)
         spin_lock_irqsave(&port->lock, flags);
         if (port->xmit_cnt && port->xmit_buf && !(port->IER & IER_TXRDY)) {
                 port->IER |= IER_TXRDY;
-                spin_lock_irqsave(&bp->lock, flags);
+                spin_lock(&bp->lock);
                 sx_out(bp, CD186x_CAR, port_No(port));
                 sx_out(bp, CD186x_IER, port->IER);
-                spin_unlock_irqrestore(&bp->lock, flags);
+                spin_unlock(&bp->lock);
         }
         spin_unlock_irqrestore(&port->lock, flags);
 
diff --git a/drivers/char/sx.c b/drivers/char/sx.c
index 518f2a25d91e..a81ec4fcf6ff 100644
--- a/drivers/char/sx.c
+++ b/drivers/char/sx.c
@@ -216,6 +216,7 @@
 #include <linux/eisa.h>
 #include <linux/pci.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/init.h>
 #include <linux/miscdevice.h>
 #include <linux/bitops.h>
diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
index afded3a2379c..813552f14884 100644
--- a/drivers/char/synclink.c
+++ b/drivers/char/synclink.c
@@ -81,6 +81,7 @@
 #include <linux/mm.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/delay.h>
 #include <linux/netdevice.h>
 #include <linux/vmalloc.h>
diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c
index a2e67e6df3a1..91f20a92fddf 100644
--- a/drivers/char/synclink_gt.c
+++ b/drivers/char/synclink_gt.c
@@ -62,6 +62,7 @@
 #include <linux/mm.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/netdevice.h>
 #include <linux/vmalloc.h>
 #include <linux/init.h>
diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c
index 6f727e3c53ad..8d4a2a8a0a70 100644
--- a/drivers/char/synclinkmp.c
+++ b/drivers/char/synclinkmp.c
@@ -52,6 +52,7 @@
 #include <linux/mm.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/netdevice.h>
 #include <linux/vmalloc.h>
 #include <linux/init.h>
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 0db35857e4d8..5d7a02f63e1c 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -35,7 +35,6 @@
 #include <linux/spinlock.h>
 #include <linux/vt_kern.h>
 #include <linux/workqueue.h>
-#include <linux/kexec.h>
 #include <linux/hrtimer.h>
 #include <linux/oom.h>
 
@@ -124,9 +123,12 @@ static struct sysrq_key_op sysrq_unraw_op = {
 static void sysrq_handle_crash(int key, struct tty_struct *tty)
 {
         char *killer = NULL;
+
+        panic_on_oops = 1;      /* force panic */
+        wmb();
         *killer = 1;
 }
-static struct sysrq_key_op sysrq_crashdump_op = {
+static struct sysrq_key_op sysrq_crash_op = {
         .handler        = sysrq_handle_crash,
         .help_msg       = "Crash",
         .action_msg     = "Trigger a crash",
@@ -401,7 +403,7 @@ static struct sysrq_key_op *sysrq_key_table[36] = {
          */
         NULL,                           /* a */
         &sysrq_reboot_op,               /* b */
-        &sysrq_crashdump_op,            /* c & ibm_emac driver debug */
+        &sysrq_crash_op,                /* c & ibm_emac driver debug */
         &sysrq_showlocks_op,            /* d */
         &sysrq_term_op,                 /* e */
         &sysrq_moom_op,                 /* f */
diff --git a/drivers/char/tb0219.c b/drivers/char/tb0219.c
index 6062b62800fd..b3ec9b10e292 100644
--- a/drivers/char/tb0219.c
+++ b/drivers/char/tb0219.c
@@ -1,7 +1,7 @@
 /*
  *  Driver for TANBAC TB0219 base board.
  *
- *  Copyright (C) 2005  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ *  Copyright (C) 2005  Yoichi Yuasa <yuasa@linux-mips.org>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -28,7 +28,7 @@
 #include <asm/vr41xx/giu.h>
 #include <asm/vr41xx/tb0219.h>
 
-MODULE_AUTHOR("Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>");
+MODULE_AUTHOR("Yoichi Yuasa <yuasa@linux-mips.org>");
 MODULE_DESCRIPTION("TANBAC TB0219 base board driver");
 MODULE_LICENSE("GPL");
 
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index ccdd828adcef..b0603b2e5684 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -26,7 +26,6 @@
 #include <linux/poll.h>
 #include <linux/mutex.h>
 #include <linux/spinlock.h>
-#include <linux/smp_lock.h>
 
 #include "tpm.h"
 
diff --git a/drivers/char/tty_buffer.c b/drivers/char/tty_buffer.c
index 810ee25d66a4..3108991c5c8b 100644
--- a/drivers/char/tty_buffer.c
+++ b/drivers/char/tty_buffer.c
@@ -462,6 +462,19 @@ static void flush_to_ldisc(struct work_struct *work)
 }
 
 /**
+ *      tty_flush_to_ldisc
+ *      @tty: tty to push
+ *
+ *      Push the terminal flip buffers to the line discipline.
+ *
+ *      Must not be called from IRQ context.
+ */
+void tty_flush_to_ldisc(struct tty_struct *tty)
+{
+        flush_to_ldisc(&tty->buf.work.work);
+}
+
+/**
  *      tty_flip_buffer_push    -       terminal
  *      @tty: tty to push
  *
diff --git a/drivers/char/tty_ioctl.c b/drivers/char/tty_ioctl.c
index b24f6c6a1ea3..ad6ba4ed2808 100644
--- a/drivers/char/tty_ioctl.c
+++ b/drivers/char/tty_ioctl.c
@@ -21,7 +21,6 @@
 #include <linux/module.h>
 #include <linux/bitops.h>
 #include <linux/mutex.h>
-#include <linux/smp_lock.h>
 
 #include <asm/io.h>
 #include <asm/uaccess.h>
diff --git a/drivers/char/tty_ldisc.c b/drivers/char/tty_ldisc.c
index a19e935847b0..1733d3439ad2 100644
--- a/drivers/char/tty_ldisc.c
+++ b/drivers/char/tty_ldisc.c
@@ -21,7 +21,6 @@
 #include <linux/proc_fs.h>
 #include <linux/init.h>
 #include <linux/module.h>
-#include <linux/smp_lock.h>
 #include <linux/device.h>
 #include <linux/wait.h>
 #include <linux/bitops.h>
@@ -49,6 +48,41 @@ static DECLARE_WAIT_QUEUE_HEAD(tty_ldisc_wait);
 /* Line disc dispatch table */
 static struct tty_ldisc_ops *tty_ldiscs[NR_LDISCS];
 
+static inline struct tty_ldisc *get_ldisc(struct tty_ldisc *ld)
+{
+        if (ld)
+                atomic_inc(&ld->users);
+        return ld;
+}
+
+static void put_ldisc(struct tty_ldisc *ld)
+{
+        unsigned long flags;
+
+        if (WARN_ON_ONCE(!ld))
+                return;
+
+        /*
+         * If this is the last user, free the ldisc, and
+         * release the ldisc ops.
+         *
+         * We really want an "atomic_dec_and_lock_irqsave()",
+         * but we don't have it, so this does it by hand.
+         */
+        local_irq_save(flags);
+        if (atomic_dec_and_lock(&ld->users, &tty_ldisc_lock)) {
+                struct tty_ldisc_ops *ldo = ld->ops;
+
+                ldo->refcount--;
+                module_put(ldo->owner);
+                spin_unlock_irqrestore(&tty_ldisc_lock, flags);
+
+                kfree(ld);
+                return;
+        }
+        local_irq_restore(flags);
+}
+
 /**
  *      tty_register_ldisc      -       install a line discipline
  *      @disc: ldisc number
@@ -143,7 +177,7 @@ static struct tty_ldisc *tty_ldisc_try_get(int disc)
                         /* lock it */
                         ldops->refcount++;
                         ld->ops = ldops;
-                        ld->refcount = 0;
+                        atomic_set(&ld->users, 1);
                         err = 0;
                 }
         }
@@ -182,35 +216,6 @@ static struct tty_ldisc *tty_ldisc_get(int disc)
         return ld;
 }
 
-/**
- *      tty_ldisc_put           -       drop ldisc reference
- *      @ld: ldisc
- *
- *      Drop a reference to a line discipline. Manage refcounts and
- *      module usage counts. Free the ldisc once the recount hits zero.
- *
- *      Locking:
- *              takes tty_ldisc_lock to guard against ldisc races
- */
-
-static void tty_ldisc_put(struct tty_ldisc *ld)
-{
-        unsigned long flags;
-        int disc = ld->ops->num;
-        struct tty_ldisc_ops *ldo;
-
-        BUG_ON(disc < N_TTY || disc >= NR_LDISCS);
-
-        spin_lock_irqsave(&tty_ldisc_lock, flags);
-        ldo = tty_ldiscs[disc];
-        BUG_ON(ldo->refcount == 0);
-        ldo->refcount--;
-        module_put(ldo->owner);
-        spin_unlock_irqrestore(&tty_ldisc_lock, flags);
-        WARN_ON(ld->refcount);
-        kfree(ld);
-}
-
 static void *tty_ldiscs_seq_start(struct seq_file *m, loff_t *pos)
 {
         return (*pos < NR_LDISCS) ? pos : NULL;
@@ -235,7 +240,7 @@ static int tty_ldiscs_seq_show(struct seq_file *m, void *v)
         if (IS_ERR(ld))
                 return 0;
         seq_printf(m, "%-10s %2d\n", ld->ops->name ? ld->ops->name : "???", i);
-        tty_ldisc_put(ld);
+        put_ldisc(ld);
         return 0;
 }
 
@@ -289,20 +294,17 @@ static void tty_ldisc_assign(struct tty_struct *tty, struct tty_ldisc *ld)
  *      Locking: takes tty_ldisc_lock
  */
 
-static int tty_ldisc_try(struct tty_struct *tty)
+static struct tty_ldisc *tty_ldisc_try(struct tty_struct *tty)
 {
         unsigned long flags;
         struct tty_ldisc *ld;
-        int ret = 0;
 
         spin_lock_irqsave(&tty_ldisc_lock, flags);
-        ld = tty->ldisc;
-        if (test_bit(TTY_LDISC, &tty->flags)) {
-                ld->refcount++;
-                ret = 1;
-        }
+        ld = NULL;
+        if (test_bit(TTY_LDISC, &tty->flags))
+                ld = get_ldisc(tty->ldisc);
         spin_unlock_irqrestore(&tty_ldisc_lock, flags);
-        return ret;
+        return ld;
 }
 
 /**
@@ -323,10 +325,11 @@ static int tty_ldisc_try(struct tty_struct *tty)
 
 struct tty_ldisc *tty_ldisc_ref_wait(struct tty_struct *tty)
 {
+        struct tty_ldisc *ld;
+
         /* wait_event is a macro */
-        wait_event(tty_ldisc_wait, tty_ldisc_try(tty));
-        WARN_ON(tty->ldisc->refcount == 0);
-        return tty->ldisc;
+        wait_event(tty_ldisc_wait, (ld = tty_ldisc_try(tty)) != NULL);
+        return ld;
 }
 EXPORT_SYMBOL_GPL(tty_ldisc_ref_wait);
 
@@ -343,9 +346,7 @@ EXPORT_SYMBOL_GPL(tty_ldisc_ref_wait);
 
 struct tty_ldisc *tty_ldisc_ref(struct tty_struct *tty)
 {
-        if (tty_ldisc_try(tty))
-                return tty->ldisc;
-        return NULL;
+        return tty_ldisc_try(tty);
 }
 EXPORT_SYMBOL_GPL(tty_ldisc_ref);
 
@@ -361,21 +362,15 @@ EXPORT_SYMBOL_GPL(tty_ldisc_ref);
 
 void tty_ldisc_deref(struct tty_ldisc *ld)
 {
-        unsigned long flags;
-
-        BUG_ON(ld == NULL);
-
-        spin_lock_irqsave(&tty_ldisc_lock, flags);
-        if (ld->refcount == 0)
-                printk(KERN_ERR "tty_ldisc_deref: no references.\n");
-        else
-                ld->refcount--;
-        if (ld->refcount == 0)
-                wake_up(&tty_ldisc_wait);
-        spin_unlock_irqrestore(&tty_ldisc_lock, flags);
+        put_ldisc(ld);
 }
 EXPORT_SYMBOL_GPL(tty_ldisc_deref);
 
+static inline void tty_ldisc_put(struct tty_ldisc *ld)
+{
+        put_ldisc(ld);
+}
+
 /**
  *      tty_ldisc_enable        -       allow ldisc use
  *      @tty: terminal to activate ldisc on
@@ -524,31 +519,6 @@ static int tty_ldisc_halt(struct tty_struct *tty)
 }
 
 /**
- *      tty_ldisc_wait_idle     -       wait for the ldisc to become idle
- *      @tty: tty to wait for
- *
- *      Wait for the line discipline to become idle. The discipline must
- *      have been halted for this to guarantee it remains idle.
- *
- *      tty_ldisc_lock protects the ref counts currently.
- */
-
-static int tty_ldisc_wait_idle(struct tty_struct *tty)
-{
-        unsigned long flags;
-        spin_lock_irqsave(&tty_ldisc_lock, flags);
-        while (tty->ldisc->refcount) {
-                spin_unlock_irqrestore(&tty_ldisc_lock, flags);
-                if (wait_event_timeout(tty_ldisc_wait,
-                                tty->ldisc->refcount == 0, 5 * HZ) == 0)
-                        return -EBUSY;
-                spin_lock_irqsave(&tty_ldisc_lock, flags);
-        }
-        spin_unlock_irqrestore(&tty_ldisc_lock, flags);
-        return 0;
-}
-
-/**
  *      tty_set_ldisc           -       set line discipline
  *      @tty: the terminal to set
  *      @ldisc: the line discipline
@@ -643,14 +613,6 @@ int tty_set_ldisc(struct tty_struct *tty, int ldisc)
 
         flush_scheduled_work();
 
-        /* Let any existing reference holders finish */
-        retval = tty_ldisc_wait_idle(tty);
-        if (retval < 0) {
-                clear_bit(TTY_LDISC_CHANGING, &tty->flags);
-                tty_ldisc_put(new_ldisc);
-                return retval;
-        }
-
         mutex_lock(&tty->ldisc_mutex);
         if (test_bit(TTY_HUPPED, &tty->flags)) {
                 /* We were raced by the hangup method. It will have stomped
@@ -791,17 +753,19 @@ void tty_ldisc_hangup(struct tty_struct *tty)
          * N_TTY.
          */
         if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS) {
-                /* Avoid racing set_ldisc */
+                /* Avoid racing set_ldisc or tty_ldisc_release */
                 mutex_lock(&tty->ldisc_mutex);
-                /* Switch back to N_TTY */
-                tty_ldisc_halt(tty);
-                tty_ldisc_wait_idle(tty);
-                tty_ldisc_reinit(tty);
-                /* At this point we have a closed ldisc and we want to
-                   reopen it. We could defer this to the next open but
-                   it means auditing a lot of other paths so this is a FIXME */
-                WARN_ON(tty_ldisc_open(tty, tty->ldisc));
-                tty_ldisc_enable(tty);
+                if (tty->ldisc) {       /* Not yet closed */
+                        /* Switch back to N_TTY */
+                        tty_ldisc_halt(tty);
+                        tty_ldisc_reinit(tty);
+                        /* At this point we have a closed ldisc and we want to
+                           reopen it. We could defer this to the next open but
+                           it means auditing a lot of other paths so this is
+                           a FIXME */
+                        WARN_ON(tty_ldisc_open(tty, tty->ldisc));
+                        tty_ldisc_enable(tty);
+                }
                 mutex_unlock(&tty->ldisc_mutex);
                 tty_reset_termios(tty);
         }
@@ -858,24 +822,25 @@ void tty_ldisc_release(struct tty_struct *tty, struct tty_struct *o_tty)
         tty_ldisc_halt(tty);
         flush_scheduled_work();
 
+        mutex_lock(&tty->ldisc_mutex);
         /*
-         * Wait for any short term users (we know they are just driver
-         * side waiters as the file is closing so user count on the file
-         * side is zero.
+         * Now kill off the ldisc
          */
+        tty_ldisc_close(tty, tty->ldisc);
+        tty_ldisc_put(tty->ldisc);
+        /* Force an oops if we mess this up */
+        tty->ldisc = NULL;
 
-        tty_ldisc_wait_idle(tty);
-
-        /*
-         * Shutdown the current line discipline, and reset it to N_TTY.
-         *
-         * FIXME: this MUST get fixed for the new reflocking
-         */
+        /* Ensure the next open requests the N_TTY ldisc */
+        tty_set_termios_ldisc(tty, N_TTY);
+        mutex_unlock(&tty->ldisc_mutex);
 
-        tty_ldisc_reinit(tty);
         /* This will need doing differently if we need to lock */
         if (o_tty)
                 tty_ldisc_release(o_tty, NULL);
+
+        /* And the memory resources remaining (buffers, termios) will be
+           disposed of when the kref hits zero */
 }
 
 /**
diff --git a/drivers/char/tty_port.c b/drivers/char/tty_port.c
index 4e862a75f7ff..9769b1149f76 100644
--- a/drivers/char/tty_port.c
+++ b/drivers/char/tty_port.c
@@ -267,7 +267,7 @@ int tty_port_block_til_ready(struct tty_port *port,
         if (retval == 0)
                 port->flags |= ASYNC_NORMAL_ACTIVE;
         spin_unlock_irqrestore(&port->lock, flags);
-        return 0;
+        return retval;
         
 }
 EXPORT_SYMBOL(tty_port_block_til_ready);
diff --git a/drivers/char/vc_screen.c b/drivers/char/vc_screen.c
index d94d25c12aa8..c1791a63d99d 100644
--- a/drivers/char/vc_screen.c
+++ b/drivers/char/vc_screen.c
@@ -495,11 +495,15 @@ void vcs_remove_sysfs(int index)
 
 int __init vcs_init(void)
 {
+        unsigned int i;
+
         if (register_chrdev(VCS_MAJOR, "vcs", &vcs_fops))
                 panic("unable to get major %d for vcs device", VCS_MAJOR);
         vc_class = class_create(THIS_MODULE, "vc");
 
         device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 0), NULL, "vcs");
         device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 128), NULL, "vcsa");
+        for (i = 0; i < MIN_NR_CONSOLES; i++)
+                vcs_make_sysfs(i);
         return 0;
 }
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index d9113b4c76e3..404f4c1ee431 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -89,6 +89,7 @@
 #include <linux/mutex.h>
 #include <linux/vt_kern.h>
 #include <linux/selection.h>
+#include <linux/smp_lock.h>
 #include <linux/tiocl.h>
 #include <linux/kbd_kern.h>
 #include <linux/consolemap.h>
@@ -769,14 +770,12 @@ int vc_allocate(unsigned int currcons)	/* return 0 on success */
             visual_init(vc, currcons, 1);
             if (!*vc->vc_uni_pagedir_loc)
                 con_set_default_unimap(vc);
-            if (!vc->vc_kmalloced)
-                vc->vc_screenbuf = kmalloc(vc->vc_screenbuf_size, GFP_KERNEL);
+            vc->vc_screenbuf = kmalloc(vc->vc_screenbuf_size, GFP_KERNEL);
             if (!vc->vc_screenbuf) {
                 kfree(vc);
                 vc_cons[currcons].d = NULL;
                 return -ENOMEM;
             }
-            vc->vc_kmalloced = 1;
             vc_init(vc, vc->vc_rows, vc->vc_cols, 1);
             vcs_make_sysfs(currcons);
             atomic_notifier_call_chain(&vt_notifier_list, VT_ALLOCATE, &param);
@@ -912,10 +911,8 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc,
         if (new_scr_end > new_origin)
                 scr_memsetw((void *)new_origin, vc->vc_video_erase_char,
                             new_scr_end - new_origin);
-        if (vc->vc_kmalloced)
-                kfree(vc->vc_screenbuf);
+        kfree(vc->vc_screenbuf);
         vc->vc_screenbuf = newscreen;
-        vc->vc_kmalloced = 1;
         vc->vc_screenbuf_size = new_screen_size;
         set_origin(vc);
 
@@ -994,8 +991,7 @@ void vc_deallocate(unsigned int currcons)
                 vc->vc_sw->con_deinit(vc);
                 put_pid(vc->vt_pid);
                 module_put(vc->vc_sw->owner);
-                if (vc->vc_kmalloced)
-                        kfree(vc->vc_screenbuf);
+                kfree(vc->vc_screenbuf);
                 if (currcons >= MIN_NR_CONSOLES)
                         kfree(vc);
                 vc_cons[currcons].d = NULL;
@@ -2880,7 +2876,6 @@ static int __init con_init(void)
                 INIT_WORK(&vc_cons[currcons].SAK_work, vc_SAK);
                 visual_init(vc, currcons, 1);
                 vc->vc_screenbuf = kzalloc(vc->vc_screenbuf_size, GFP_NOWAIT);
-                vc->vc_kmalloced = 0;
                 vc_init(vc, vc->vc_rows, vc->vc_cols,
                         currcons || !vc->vc_sw->con_save_screen);
         }
diff --git a/drivers/char/vt_ioctl.c b/drivers/char/vt_ioctl.c
index 7539bed0f7e0..95189f288f8c 100644
--- a/drivers/char/vt_ioctl.c
+++ b/drivers/char/vt_ioctl.c
@@ -25,6 +25,7 @@
 #include <linux/console.h>
 #include <linux/consolemap.h>
 #include <linux/signal.h>
+#include <linux/smp_lock.h>
 #include <linux/timex.h>
 
 #include <asm/io.h>
diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c
index 9ffb05f4095d..93c2322feab7 100644
--- a/drivers/clocksource/sh_tmu.c
+++ b/drivers/clocksource/sh_tmu.c
@@ -161,7 +161,7 @@ static void sh_tmu_set_next(struct sh_tmu_priv *p, unsigned long delta,
         if (periodic)
                 sh_tmu_write(p, TCOR, delta);
         else
-                sh_tmu_write(p, TCOR, 0);
+                sh_tmu_write(p, TCOR, 0xffffffff);
 
         sh_tmu_write(p, TCNT, delta);
 
diff --git a/drivers/connector/cn_queue.c b/drivers/connector/cn_queue.c
index c769ef269fb5..408c2af25d50 100644
--- a/drivers/connector/cn_queue.c
+++ b/drivers/connector/cn_queue.c
@@ -1,7 +1,7 @@
 /*
  *      cn_queue.c
  *
- * 2004-2005 Copyright (c) Evgeniy Polyakov <johnpol@2ka.mipt.ru>
+ * 2004+ Copyright (c) Evgeniy Polyakov <zbr@ioremap.net>
  * All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c
index fd336c5a9057..08b2500f21ec 100644
--- a/drivers/connector/connector.c
+++ b/drivers/connector/connector.c
@@ -1,7 +1,7 @@
 /*
  *      connector.c
  *
- * 2004-2005 Copyright (c) Evgeniy Polyakov <johnpol@2ka.mipt.ru>
+ * 2004+ Copyright (c) Evgeniy Polyakov <zbr@ioremap.net>
  * All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
@@ -33,7 +33,7 @@
 #include <net/sock.h>
 
 MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Evgeniy Polyakov <johnpol@2ka.mipt.ru>");
+MODULE_AUTHOR("Evgeniy Polyakov <zbr@ioremap.net>");
 MODULE_DESCRIPTION("Generic userspace <-> kernelspace connector.");
 
 static u32 cn_idx = CN_IDX_CONNECTOR;
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 6e2ec0b18948..fd69086d08d5 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -761,6 +761,10 @@ static struct kobj_type ktype_cpufreq = {
  * cpufreq_add_dev - add a CPU device
  *
  * Adds the cpufreq interface for a CPU device.
+ *
+ * The Oracle says: try running cpufreq registration/unregistration concurrently
+ * with with cpu hotplugging and all hell will break loose. Tried to clean this
+ * mess up, but more thorough testing is needed. - Mathieu
  */
 static int cpufreq_add_dev(struct sys_device *sys_dev)
 {
@@ -772,9 +776,6 @@ static int cpufreq_add_dev(struct sys_device *sys_dev)
         struct sys_device *cpu_sys_dev;
         unsigned long flags;
         unsigned int j;
-#ifdef CONFIG_SMP
-        struct cpufreq_policy *managed_policy;
-#endif
 
         if (cpu_is_offline(cpu))
                 return 0;
@@ -804,15 +805,12 @@ static int cpufreq_add_dev(struct sys_device *sys_dev)
                 goto nomem_out;
         }
         if (!alloc_cpumask_var(&policy->cpus, GFP_KERNEL)) {
-                kfree(policy);
                 ret = -ENOMEM;
-                goto nomem_out;
+                goto err_free_policy;
         }
         if (!zalloc_cpumask_var(&policy->related_cpus, GFP_KERNEL)) {
-                free_cpumask_var(policy->cpus);
-                kfree(policy);
                 ret = -ENOMEM;
-                goto nomem_out;
+                goto err_free_cpumask;
         }
 
         policy->cpu = cpu;
@@ -820,7 +818,8 @@ static int cpufreq_add_dev(struct sys_device *sys_dev)
 
         /* Initially set CPU itself as the policy_cpu */
         per_cpu(policy_cpu, cpu) = cpu;
-        lock_policy_rwsem_write(cpu);
+        ret = (lock_policy_rwsem_write(cpu) < 0);
+        WARN_ON(ret);
 
         init_completion(&policy->kobj_unregister);
         INIT_WORK(&policy->update, handle_update);
@@ -833,7 +832,7 @@ static int cpufreq_add_dev(struct sys_device *sys_dev)
         ret = cpufreq_driver->init(policy);
         if (ret) {
                 dprintk("initialization failed\n");
-                goto err_out;
+                goto err_unlock_policy;
         }
         policy->user_policy.min = policy->min;
         policy->user_policy.max = policy->max;
@@ -852,21 +851,31 @@ static int cpufreq_add_dev(struct sys_device *sys_dev)
 #endif
 
         for_each_cpu(j, policy->cpus) {
+                struct cpufreq_policy *managed_policy;
+
                 if (cpu == j)
                         continue;
 
                 /* Check for existing affected CPUs.
                  * They may not be aware of it due to CPU Hotplug.
+                 * cpufreq_cpu_put is called when the device is removed
+                 * in __cpufreq_remove_dev()
                  */
-                managed_policy = cpufreq_cpu_get(j);            /* FIXME: Where is this released?  What about error paths? */
+                managed_policy = cpufreq_cpu_get(j);
                 if (unlikely(managed_policy)) {
 
                         /* Set proper policy_cpu */
                         unlock_policy_rwsem_write(cpu);
                         per_cpu(policy_cpu, cpu) = managed_policy->cpu;
 
-                        if (lock_policy_rwsem_write(cpu) < 0)
-                                goto err_out_driver_exit;
+                        if (lock_policy_rwsem_write(cpu) < 0) {
+                                /* Should not go through policy unlock path */
+                                if (cpufreq_driver->exit)
+                                        cpufreq_driver->exit(policy);
+                                ret = -EBUSY;
+                                cpufreq_cpu_put(managed_policy);
+                                goto err_free_cpumask;
+                        }
 
                         spin_lock_irqsave(&cpufreq_driver_lock, flags);
                         cpumask_copy(managed_policy->cpus, policy->cpus);
@@ -878,11 +887,13 @@ static int cpufreq_add_dev(struct sys_device *sys_dev)
                                                 &managed_policy->kobj,
                                                 "cpufreq");
                         if (ret)
-                                goto err_out_driver_exit;
-
-                        cpufreq_debug_enable_ratelimit();
-                        ret = 0;
-                        goto err_out_driver_exit; /* call driver->exit() */
+                                cpufreq_cpu_put(managed_policy);
+                        /*
+                         * Success. We only needed to be added to the mask.
+                         * Call driver->exit() because only the cpu parent of
+                         * the kobj needed to call init().
+                         */
+                        goto out_driver_exit; /* call driver->exit() */
                 }
         }
 #endif
@@ -892,29 +903,31 @@ static int cpufreq_add_dev(struct sys_device *sys_dev)
         ret = kobject_init_and_add(&policy->kobj, &ktype_cpufreq, &sys_dev->kobj,
                                    "cpufreq");
         if (ret)
-                goto err_out_driver_exit;
+                goto out_driver_exit;
 
         /* set up files for this cpu device */
         drv_attr = cpufreq_driver->attr;
         while ((drv_attr) && (*drv_attr)) {
                 ret = sysfs_create_file(&policy->kobj, &((*drv_attr)->attr));
                 if (ret)
-                        goto err_out_driver_exit;
+                        goto err_out_kobj_put;
                 drv_attr++;
         }
         if (cpufreq_driver->get) {
                 ret = sysfs_create_file(&policy->kobj, &cpuinfo_cur_freq.attr);
                 if (ret)
-                        goto err_out_driver_exit;
+                        goto err_out_kobj_put;
         }
         if (cpufreq_driver->target) {
                 ret = sysfs_create_file(&policy->kobj, &scaling_cur_freq.attr);
                 if (ret)
-                        goto err_out_driver_exit;
+                        goto err_out_kobj_put;
         }
 
         spin_lock_irqsave(&cpufreq_driver_lock, flags);
         for_each_cpu(j, policy->cpus) {
+                if (!cpu_online(j))
+                        continue;
                 per_cpu(cpufreq_cpu_data, j) = policy;
                 per_cpu(policy_cpu, j) = policy->cpu;
         }
@@ -922,18 +935,22 @@ static int cpufreq_add_dev(struct sys_device *sys_dev)
 
         /* symlink affected CPUs */
         for_each_cpu(j, policy->cpus) {
+                struct cpufreq_policy *managed_policy;
+
                 if (j == cpu)
                         continue;
                 if (!cpu_online(j))
                         continue;
 
                 dprintk("CPU %u already managed, adding link\n", j);
-                cpufreq_cpu_get(cpu);
+                managed_policy = cpufreq_cpu_get(cpu);
                 cpu_sys_dev = get_cpu_sysdev(j);
                 ret = sysfs_create_link(&cpu_sys_dev->kobj, &policy->kobj,
                                         "cpufreq");
-                if (ret)
+                if (ret) {
+                        cpufreq_cpu_put(managed_policy);
                         goto err_out_unregister;
+                }
         }
 
         policy->governor = NULL; /* to assure that the starting sequence is
@@ -965,17 +982,20 @@ err_out_unregister:
                 per_cpu(cpufreq_cpu_data, j) = NULL;
         spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
 
+err_out_kobj_put:
         kobject_put(&policy->kobj);
         wait_for_completion(&policy->kobj_unregister);
 
-err_out_driver_exit:
+out_driver_exit:
         if (cpufreq_driver->exit)
                 cpufreq_driver->exit(policy);
 
-err_out:
+err_unlock_policy:
         unlock_policy_rwsem_write(cpu);
+err_free_cpumask:
+        free_cpumask_var(policy->cpus);
+err_free_policy:
         kfree(policy);
-
 nomem_out:
         module_put(cpufreq_driver->owner);
 module_out:
@@ -1070,8 +1090,6 @@ static int __cpufreq_remove_dev(struct sys_device *sys_dev)
         spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
 #endif
 
-        unlock_policy_rwsem_write(cpu);
-
         if (cpufreq_driver->target)
                 __cpufreq_governor(data, CPUFREQ_GOV_STOP);
 
@@ -1088,6 +1106,8 @@ static int __cpufreq_remove_dev(struct sys_device *sys_dev)
         if (cpufreq_driver->exit)
                 cpufreq_driver->exit(data);
 
+        unlock_policy_rwsem_write(cpu);
+
         free_cpumask_var(data->related_cpus);
         free_cpumask_var(data->cpus);
         kfree(data);
@@ -1228,13 +1248,22 @@ EXPORT_SYMBOL(cpufreq_get);
 
 static int cpufreq_suspend(struct sys_device *sysdev, pm_message_t pmsg)
 {
-        int cpu = sysdev->id;
         int ret = 0;
+
+#ifdef __powerpc__
+        int cpu = sysdev->id;
         unsigned int cur_freq = 0;
         struct cpufreq_policy *cpu_policy;
 
         dprintk("suspending cpu %u\n", cpu);
 
+        /*
+         * This whole bogosity is here because Powerbooks are made of fail.
+         * No sane platform should need any of the code below to be run.
+         * (it's entirely the wrong thing to do, as driver->get may
+         *  reenable interrupts on some architectures).
+         */
+
         if (!cpu_online(cpu))
                 return 0;
 
@@ -1293,6 +1322,7 @@ static int cpufreq_suspend(struct sys_device *sysdev, pm_message_t pmsg)
 
 out:
         cpufreq_cpu_put(cpu_policy);
+#endif  /* __powerpc__ */
         return ret;
 }
 
@@ -1306,12 +1336,18 @@ out:
  */
 static int cpufreq_resume(struct sys_device *sysdev)
 {
-        int cpu = sysdev->id;
         int ret = 0;
+
+#ifdef __powerpc__
+        int cpu = sysdev->id;
         struct cpufreq_policy *cpu_policy;
 
         dprintk("resuming cpu %u\n", cpu);
 
+        /* As with the ->suspend method, all the code below is
+         * only necessary because Powerbooks suck.
+         * See commit 42d4dc3f4e1e for jokes. */
+
         if (!cpu_online(cpu))
                 return 0;
 
@@ -1375,6 +1411,7 @@ out:
         schedule_work(&cpu_policy->update);
 fail:
         cpufreq_cpu_put(cpu_policy);
+#endif  /* __powerpc__ */
         return ret;
 }
 
diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index 7fc58af748b4..bdea7e2f94ba 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -64,21 +64,20 @@ struct cpu_dbs_info_s {
         unsigned int requested_freq;
         int cpu;
         unsigned int enable:1;
+        /*
+         * percpu mutex that serializes governor limit change with
+         * do_dbs_timer invocation. We do not want do_dbs_timer to run
+         * when user is changing the governor or limits.
+         */
+        struct mutex timer_mutex;
 };
 static DEFINE_PER_CPU(struct cpu_dbs_info_s, cpu_dbs_info);
 
 static unsigned int dbs_enable; /* number of CPUs using this policy */
 
 /*
- * DEADLOCK ALERT! There is a ordering requirement between cpu_hotplug
- * lock and dbs_mutex. cpu_hotplug lock should always be held before
- * dbs_mutex. If any function that can potentially take cpu_hotplug lock
- * (like __cpufreq_driver_target()) is being called with dbs_mutex taken, then
- * cpu_hotplug lock should be taken before that. Note that cpu_hotplug lock
- * is recursive for the same process. -Venki
- * DEADLOCK ALERT! (2) : do_dbs_timer() must not take the dbs_mutex, because it
- * would deadlock with cancel_delayed_work_sync(), which is needed for proper
- * raceless workqueue teardown.
+ * dbs_mutex protects data in dbs_tuners_ins from concurrent changes on
+ * different CPUs. It protects dbs_enable in governor start/stop.
  */
 static DEFINE_MUTEX(dbs_mutex);
 
@@ -488,18 +487,12 @@ static void do_dbs_timer(struct work_struct *work)
 
         delay -= jiffies % delay;
 
-        if (lock_policy_rwsem_write(cpu) < 0)
-                return;
-
-        if (!dbs_info->enable) {
-                unlock_policy_rwsem_write(cpu);
-                return;
-        }
+        mutex_lock(&dbs_info->timer_mutex);
 
         dbs_check_cpu(dbs_info);
 
         queue_delayed_work_on(cpu, kconservative_wq, &dbs_info->work, delay);
-        unlock_policy_rwsem_write(cpu);
+        mutex_unlock(&dbs_info->timer_mutex);
 }
 
 static inline void dbs_timer_init(struct cpu_dbs_info_s *dbs_info)
@@ -535,9 +528,6 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                 if ((!cpu_online(cpu)) || (!policy->cur))
                         return -EINVAL;
 
-                if (this_dbs_info->enable) /* Already enabled */
-                        break;
-
                 mutex_lock(&dbs_mutex);
 
                 rc = sysfs_create_group(&policy->kobj, &dbs_attr_group);
@@ -561,6 +551,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                 this_dbs_info->down_skip = 0;
                 this_dbs_info->requested_freq = policy->cur;
 
+                mutex_init(&this_dbs_info->timer_mutex);
                 dbs_enable++;
                 /*
                  * Start the timerschedule work, when this governor
@@ -590,17 +581,19 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                                         &dbs_cpufreq_notifier_block,
                                         CPUFREQ_TRANSITION_NOTIFIER);
                 }
-                dbs_timer_init(this_dbs_info);
-
                 mutex_unlock(&dbs_mutex);
 
+                dbs_timer_init(this_dbs_info);
+
                 break;
 
         case CPUFREQ_GOV_STOP:
-                mutex_lock(&dbs_mutex);
                 dbs_timer_exit(this_dbs_info);
+
+                mutex_lock(&dbs_mutex);
                 sysfs_remove_group(&policy->kobj, &dbs_attr_group);
                 dbs_enable--;
+                mutex_destroy(&this_dbs_info->timer_mutex);
 
                 /*
                  * Stop the timerschedule work, when this governor
@@ -616,7 +609,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                 break;
 
         case CPUFREQ_GOV_LIMITS:
-                mutex_lock(&dbs_mutex);
+                mutex_lock(&this_dbs_info->timer_mutex);
                 if (policy->max < this_dbs_info->cur_policy->cur)
                         __cpufreq_driver_target(
                                         this_dbs_info->cur_policy,
@@ -625,7 +618,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                         __cpufreq_driver_target(
                                         this_dbs_info->cur_policy,
                                         policy->min, CPUFREQ_RELATION_L);
-                mutex_unlock(&dbs_mutex);
+                mutex_unlock(&this_dbs_info->timer_mutex);
 
                 break;
         }
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index 1911d1729353..d6ba14276bb1 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -70,23 +70,21 @@ struct cpu_dbs_info_s {
         unsigned int freq_lo_jiffies;
         unsigned int freq_hi_jiffies;
         int cpu;
-        unsigned int enable:1,
-                sample_type:1;
+        unsigned int sample_type:1;
+        /*
+         * percpu mutex that serializes governor limit change with
+         * do_dbs_timer invocation. We do not want do_dbs_timer to run
+         * when user is changing the governor or limits.
+         */
+        struct mutex timer_mutex;
 };
 static DEFINE_PER_CPU(struct cpu_dbs_info_s, cpu_dbs_info);
 
 static unsigned int dbs_enable; /* number of CPUs using this policy */
 
 /*
- * DEADLOCK ALERT! There is a ordering requirement between cpu_hotplug
- * lock and dbs_mutex. cpu_hotplug lock should always be held before
- * dbs_mutex. If any function that can potentially take cpu_hotplug lock
- * (like __cpufreq_driver_target()) is being called with dbs_mutex taken, then
- * cpu_hotplug lock should be taken before that. Note that cpu_hotplug lock
- * is recursive for the same process. -Venki
- * DEADLOCK ALERT! (2) : do_dbs_timer() must not take the dbs_mutex, because it
- * would deadlock with cancel_delayed_work_sync(), which is needed for proper
- * raceless workqueue teardown.
+ * dbs_mutex protects data in dbs_tuners_ins from concurrent changes on
+ * different CPUs. It protects dbs_enable in governor start/stop.
  */
 static DEFINE_MUTEX(dbs_mutex);
 
@@ -192,13 +190,18 @@ static unsigned int powersave_bias_target(struct cpufreq_policy *policy,
         return freq_hi;
 }
 
+static void ondemand_powersave_bias_init_cpu(int cpu)
+{
+        struct cpu_dbs_info_s *dbs_info = &per_cpu(cpu_dbs_info, cpu);
+        dbs_info->freq_table = cpufreq_frequency_get_table(cpu);
+        dbs_info->freq_lo = 0;
+}
+
 static void ondemand_powersave_bias_init(void)
 {
         int i;
         for_each_online_cpu(i) {
-                struct cpu_dbs_info_s *dbs_info = &per_cpu(cpu_dbs_info, i);
-                dbs_info->freq_table = cpufreq_frequency_get_table(i);
-                dbs_info->freq_lo = 0;
+                ondemand_powersave_bias_init_cpu(i);
         }
 }
 
@@ -240,12 +243,10 @@ static ssize_t store_sampling_rate(struct cpufreq_policy *unused,
         unsigned int input;
         int ret;
         ret = sscanf(buf, "%u", &input);
+        if (ret != 1)
+                return -EINVAL;
 
         mutex_lock(&dbs_mutex);
-        if (ret != 1) {
-                mutex_unlock(&dbs_mutex);
-                return -EINVAL;
-        }
         dbs_tuners_ins.sampling_rate = max(input, min_sampling_rate);
         mutex_unlock(&dbs_mutex);
 
@@ -259,13 +260,12 @@ static ssize_t store_up_threshold(struct cpufreq_policy *unused,
         int ret;
         ret = sscanf(buf, "%u", &input);
 
-        mutex_lock(&dbs_mutex);
         if (ret != 1 || input > MAX_FREQUENCY_UP_THRESHOLD ||
                         input < MIN_FREQUENCY_UP_THRESHOLD) {
-                mutex_unlock(&dbs_mutex);
                 return -EINVAL;
         }
 
+        mutex_lock(&dbs_mutex);
         dbs_tuners_ins.up_threshold = input;
         mutex_unlock(&dbs_mutex);
 
@@ -363,9 +363,6 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
         struct cpufreq_policy *policy;
         unsigned int j;
 
-        if (!this_dbs_info->enable)
-                return;
-
         this_dbs_info->freq_lo = 0;
         policy = this_dbs_info->cur_policy;
 
@@ -493,14 +490,7 @@ static void do_dbs_timer(struct work_struct *work)
         int delay = usecs_to_jiffies(dbs_tuners_ins.sampling_rate);
 
         delay -= jiffies % delay;
-
-        if (lock_policy_rwsem_write(cpu) < 0)
-                return;
-
-        if (!dbs_info->enable) {
-                unlock_policy_rwsem_write(cpu);
-                return;
-        }
+        mutex_lock(&dbs_info->timer_mutex);
 
         /* Common NORMAL_SAMPLE setup */
         dbs_info->sample_type = DBS_NORMAL_SAMPLE;
@@ -517,7 +507,7 @@ static void do_dbs_timer(struct work_struct *work)
                         dbs_info->freq_lo, CPUFREQ_RELATION_H);
         }
         queue_delayed_work_on(cpu, kondemand_wq, &dbs_info->work, delay);
-        unlock_policy_rwsem_write(cpu);
+        mutex_unlock(&dbs_info->timer_mutex);
 }
 
 static inline void dbs_timer_init(struct cpu_dbs_info_s *dbs_info)
@@ -526,8 +516,6 @@ static inline void dbs_timer_init(struct cpu_dbs_info_s *dbs_info)
         int delay = usecs_to_jiffies(dbs_tuners_ins.sampling_rate);
         delay -= jiffies % delay;
 
-        dbs_info->enable = 1;
-        ondemand_powersave_bias_init();
         dbs_info->sample_type = DBS_NORMAL_SAMPLE;
         INIT_DELAYED_WORK_DEFERRABLE(&dbs_info->work, do_dbs_timer);
         queue_delayed_work_on(dbs_info->cpu, kondemand_wq, &dbs_info->work,
@@ -536,7 +524,6 @@ static inline void dbs_timer_init(struct cpu_dbs_info_s *dbs_info)
 
 static inline void dbs_timer_exit(struct cpu_dbs_info_s *dbs_info)
 {
-        dbs_info->enable = 0;
         cancel_delayed_work_sync(&dbs_info->work);
 }
 
@@ -555,19 +542,15 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                 if ((!cpu_online(cpu)) || (!policy->cur))
                         return -EINVAL;
 
-                if (this_dbs_info->enable) /* Already enabled */
-                        break;
-
                 mutex_lock(&dbs_mutex);
-                dbs_enable++;
 
                 rc = sysfs_create_group(&policy->kobj, &dbs_attr_group);
                 if (rc) {
-                        dbs_enable--;
                         mutex_unlock(&dbs_mutex);
                         return rc;
                 }
 
+                dbs_enable++;
                 for_each_cpu(j, policy->cpus) {
                         struct cpu_dbs_info_s *j_dbs_info;
                         j_dbs_info = &per_cpu(cpu_dbs_info, j);
@@ -581,6 +564,8 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                         }
                 }
                 this_dbs_info->cpu = cpu;
+                ondemand_powersave_bias_init_cpu(cpu);
+                mutex_init(&this_dbs_info->timer_mutex);
                 /*
                  * Start the timerschedule work, when this governor
                  * is used for first time
@@ -598,29 +583,31 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                                 max(min_sampling_rate,
                                     latency * LATENCY_MULTIPLIER);
                 }
-                dbs_timer_init(this_dbs_info);
-
                 mutex_unlock(&dbs_mutex);
+
+                dbs_timer_init(this_dbs_info);
                 break;
 
         case CPUFREQ_GOV_STOP:
-                mutex_lock(&dbs_mutex);
                 dbs_timer_exit(this_dbs_info);
+
+                mutex_lock(&dbs_mutex);
                 sysfs_remove_group(&policy->kobj, &dbs_attr_group);
+                mutex_destroy(&this_dbs_info->timer_mutex);
                 dbs_enable--;
                 mutex_unlock(&dbs_mutex);
 
                 break;
 
         case CPUFREQ_GOV_LIMITS:
-                mutex_lock(&dbs_mutex);
+                mutex_lock(&this_dbs_info->timer_mutex);
                 if (policy->max < this_dbs_info->cur_policy->cur)
                         __cpufreq_driver_target(this_dbs_info->cur_policy,
                                 policy->max, CPUFREQ_RELATION_H);
                 else if (policy->min > this_dbs_info->cur_policy->cur)
                         __cpufreq_driver_target(this_dbs_info->cur_policy,
                                 policy->min, CPUFREQ_RELATION_L);
-                mutex_unlock(&dbs_mutex);
+                mutex_unlock(&this_dbs_info->timer_mutex);
                 break;
         }
         return 0;
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index c36bf40568cf..e2a10bcba7a1 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -754,13 +754,13 @@ static void amd64_cpu_display_info(struct amd64_pvt *pvt)
 static enum edac_type amd64_determine_edac_cap(struct amd64_pvt *pvt)
 {
         int bit;
-        enum dev_type edac_cap = EDAC_NONE;
+        enum dev_type edac_cap = EDAC_FLAG_NONE;
 
         bit = (boot_cpu_data.x86 > 0xf || pvt->ext_model >= OPTERON_CPU_REV_F)
                 ? 19
                 : 17;
 
-        if (pvt->dclr0 >> BIT(bit))
+        if (pvt->dclr0 & BIT(bit))
                 edac_cap = EDAC_FLAG_SECDED;
 
         return edac_cap;
@@ -868,6 +868,8 @@ static void amd64_read_dbam_reg(struct amd64_pvt *pvt)
                         goto err_reg;
         }
 
+        return;
+
 err_reg:
         debugf0("Error reading F2x%03x.\n", reg);
 }
@@ -970,7 +972,7 @@ static void amd64_read_dct_base_mask(struct amd64_pvt *pvt)
         }
 
         for (cs = 0; cs < pvt->num_dcsm; cs++) {
-                reg = K8_DCSB0 + (cs * 4);
+                reg = K8_DCSM0 + (cs * 4);
                 err = pci_read_config_dword(pvt->dram_f2_ctl, reg,
                                         &pvt->dcsm0[cs]);
                 if (unlikely(err))
@@ -1269,7 +1271,7 @@ static int f10_early_channel_count(struct amd64_pvt *pvt)
         if (channels == 0)
                 channels = 1;
 
-        debugf0("DIMM count= %d\n", channels);
+        debugf0("MCT channel count: %d\n", channels);
 
         return channels;
 
@@ -2634,6 +2636,8 @@ static void amd64_read_mc_registers(struct amd64_pvt *pvt)
 
         amd64_dump_misc_regs(pvt);
 
+        return;
+
 err_reg:
         debugf0("Reading an MC register failed\n");
 
@@ -2966,12 +2970,20 @@ static int amd64_check_ecc_enabled(struct amd64_pvt *pvt)
                                 "    Use of the override can cause "
                                 "unknown side effects.\n");
                         ret = -ENODEV;
-                }
+                } else
+                        /*
+                         * enable further driver loading if ECC enable is
+                         * overridden.
+                         */
+                        ret = 0;
         } else {
                 amd64_printk(KERN_INFO,
                         "ECC is enabled by BIOS, Proceeding "
                         "with EDAC module initialization\n");
 
+                /* Signal good ECC status */
+                ret = 0;
+
                 /* CLEAR the override, since BIOS controlled it */
                 ecc_enable_override = 0;
         }
@@ -3006,7 +3018,6 @@ static void amd64_setup_mci_misc_attributes(struct mem_ctl_info *mci)
 
         mci->mtype_cap          = MEM_FLAG_DDR2 | MEM_FLAG_RDDR2;
         mci->edac_ctl_cap       = EDAC_FLAG_NONE;
-        mci->edac_cap           = EDAC_FLAG_NONE;
 
         if (pvt->nbcap & K8_NBCAP_SECDED)
                 mci->edac_ctl_cap |= EDAC_FLAG_SECDED;
@@ -3052,7 +3063,7 @@ static int amd64_probe_one_instance(struct pci_dev *dram_f2_ctl,
         if (!pvt)
                 goto err_exit;
 
-        pvt->mc_node_id = get_mc_node_id_from_pdev(dram_f2_ctl);
+        pvt->mc_node_id = get_node_id(dram_f2_ctl);
 
         pvt->dram_f2_ctl        = dram_f2_ctl;
         pvt->ext_model          = boot_cpu_data.x86_model >> 4;
@@ -3179,8 +3190,7 @@ static int __devinit amd64_init_one_instance(struct pci_dev *pdev,
 {
         int ret = 0;
 
-        debugf0("(MC node=%d,mc_type='%s')\n",
-                get_mc_node_id_from_pdev(pdev),
+        debugf0("(MC node=%d,mc_type='%s')\n", get_node_id(pdev),
                 get_amd_family_name(mc_type->driver_data));
 
         ret = pci_enable_device(pdev);
@@ -3319,15 +3329,17 @@ static int __init amd64_edac_init(void)
 
                 err = amd64_init_2nd_stage(pvt_lookup[nb]);
                 if (err)
-                        goto err_exit;
+                        goto err_2nd_stage;
         }
 
         amd64_setup_pci_device();
 
         return 0;
 
+err_2nd_stage:
+        debugf0("2nd stage failed\n");
+
 err_exit:
-        debugf0("'finish_setup' stage failed\n");
         pci_unregister_driver(&amd64_pci_driver);
 
         return err;
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h
index a159957e167b..ba73015af8e4 100644
--- a/drivers/edac/amd64_edac.h
+++ b/drivers/edac/amd64_edac.h
@@ -444,7 +444,7 @@ enum {
 #define K8_MSR_MC4ADDR                  0x0412
 
 /* AMD sets the first MC device at device ID 0x18. */
-static inline int get_mc_node_id_from_pdev(struct pci_dev *pdev)
+static inline int get_node_id(struct pci_dev *pdev)
 {
         return PCI_SLOT(pdev->devfn) - 0x18;
 }
diff --git a/drivers/edac/edac_core.h b/drivers/edac/edac_core.h
index 3493c6bdb820..871c13b4c148 100644
--- a/drivers/edac/edac_core.h
+++ b/drivers/edac/edac_core.h
@@ -150,6 +150,8 @@ enum mem_type {
         MEM_FB_DDR2,            /* fully buffered DDR2 */
         MEM_RDDR2,              /* Registered DDR2 RAM */
         MEM_XDR,                /* Rambus XDR */
+        MEM_DDR3,               /* DDR3 RAM */
+        MEM_RDDR3,              /* Registered DDR3 RAM */
 };
 
 #define MEM_FLAG_EMPTY          BIT(MEM_EMPTY)
@@ -167,6 +169,8 @@ enum mem_type {
 #define MEM_FLAG_FB_DDR2        BIT(MEM_FB_DDR2)
 #define MEM_FLAG_RDDR2          BIT(MEM_RDDR2)
 #define MEM_FLAG_XDR            BIT(MEM_XDR)
+#define MEM_FLAG_DDR3            BIT(MEM_DDR3)
+#define MEM_FLAG_RDDR3           BIT(MEM_RDDR3)
 
 /* chipset Error Detection and Correction capabilities and mode */
 enum edac_type {
diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index ad218fe4942d..e1d4ce083481 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -94,7 +94,9 @@ static const char *mem_types[] = {
         [MEM_DDR2] = "Unbuffered-DDR2",
         [MEM_FB_DDR2] = "FullyBuffered-DDR2",
         [MEM_RDDR2] = "Registered-DDR2",
-        [MEM_XDR] = "XDR"
+        [MEM_XDR] = "XDR",
+        [MEM_DDR3] = "Unbuffered-DDR3",
+        [MEM_RDDR3] = "Registered-DDR3"
 };
 
 static const char *dev_types[] = {
diff --git a/drivers/edac/mpc85xx_edac.c b/drivers/edac/mpc85xx_edac.c
index 7c8c2d72916f..3f2ccfc6407c 100644
--- a/drivers/edac/mpc85xx_edac.c
+++ b/drivers/edac/mpc85xx_edac.c
@@ -757,6 +757,9 @@ static void __devinit mpc85xx_init_csrows(struct mem_ctl_info *mci)
                 case DSC_SDTYPE_DDR2:
                         mtype = MEM_RDDR2;
                         break;
+                case DSC_SDTYPE_DDR3:
+                        mtype = MEM_RDDR3;
+                        break;
                 default:
                         mtype = MEM_UNKNOWN;
                         break;
@@ -769,6 +772,9 @@ static void __devinit mpc85xx_init_csrows(struct mem_ctl_info *mci)
                 case DSC_SDTYPE_DDR2:
                         mtype = MEM_DDR2;
                         break;
+                case DSC_SDTYPE_DDR3:
+                        mtype = MEM_DDR3;
+                        break;
                 default:
                         mtype = MEM_UNKNOWN;
                         break;
diff --git a/drivers/edac/mpc85xx_edac.h b/drivers/edac/mpc85xx_edac.h
index 135b3539a030..52432ee7c4b9 100644
--- a/drivers/edac/mpc85xx_edac.h
+++ b/drivers/edac/mpc85xx_edac.h
@@ -53,6 +53,7 @@
 
 #define DSC_SDTYPE_DDR          0x02000000
 #define DSC_SDTYPE_DDR2         0x03000000
+#define DSC_SDTYPE_DDR3         0x07000000
 #define DSC_X32_EN      0x00000020
 
 /* Err_Int_En */
diff --git a/drivers/edac/x38_edac.c b/drivers/edac/x38_edac.c
index 2406c2ce2844..d4ec60593176 100644
--- a/drivers/edac/x38_edac.c
+++ b/drivers/edac/x38_edac.c
@@ -30,7 +30,7 @@
 /* Intel X38 register addresses - device 0 function 0 - DRAM Controller */
 
 #define X38_MCHBAR_LOW  0x48    /* MCH Memory Mapped Register BAR */
-#define X38_MCHBAR_HIGH 0x4b
+#define X38_MCHBAR_HIGH 0x4c
 #define X38_MCHBAR_MASK 0xfffffc000ULL  /* bits 35:14 */
 #define X38_MMR_WINDOW_SIZE     16384
 
diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c
index 543fccac81bb..f74edae5cb4c 100644
--- a/drivers/firewire/core-card.c
+++ b/drivers/firewire/core-card.c
@@ -196,8 +196,8 @@ static void allocate_broadcast_channel(struct fw_card *card, int generation)
 {
         int channel, bandwidth = 0;
 
-        fw_iso_resource_manage(card, generation, 1ULL << 31,
-                               &channel, &bandwidth, true);
+        fw_iso_resource_manage(card, generation, 1ULL << 31, &channel,
+                               &bandwidth, true, card->bm_transaction_data);
         if (channel == 31) {
                 card->broadcast_channel_allocated = true;
                 device_for_each_child(card->device, (void *)(long)generation,
@@ -230,7 +230,6 @@ static void fw_card_bm_work(struct work_struct *work)
         bool do_reset = false;
         bool root_device_is_running;
         bool root_device_is_cmc;
-        __be32 lock_data[2];
 
         spin_lock_irqsave(&card->lock, flags);
 
@@ -273,22 +272,23 @@ static void fw_card_bm_work(struct work_struct *work)
                         goto pick_me;
                 }
 
-                lock_data[0] = cpu_to_be32(0x3f);
-                lock_data[1] = cpu_to_be32(local_id);
+                card->bm_transaction_data[0] = cpu_to_be32(0x3f);
+                card->bm_transaction_data[1] = cpu_to_be32(local_id);
 
                 spin_unlock_irqrestore(&card->lock, flags);
 
                 rcode = fw_run_transaction(card, TCODE_LOCK_COMPARE_SWAP,
                                 irm_id, generation, SCODE_100,
                                 CSR_REGISTER_BASE + CSR_BUS_MANAGER_ID,
-                                lock_data, sizeof(lock_data));
+                                card->bm_transaction_data,
+                                sizeof(card->bm_transaction_data));
 
                 if (rcode == RCODE_GENERATION)
                         /* Another bus reset, BM work has been rescheduled. */
                         goto out;
 
                 if (rcode == RCODE_COMPLETE &&
-                    lock_data[0] != cpu_to_be32(0x3f)) {
+                    card->bm_transaction_data[0] != cpu_to_be32(0x3f)) {
 
                         /* Somebody else is BM.  Only act as IRM. */
                         if (local_id == irm_id)
diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
index d1d30c615b0f..ced186d7e9a9 100644
--- a/drivers/firewire/core-cdev.c
+++ b/drivers/firewire/core-cdev.c
@@ -125,6 +125,7 @@ struct iso_resource {
         int generation;
         u64 channels;
         s32 bandwidth;
+        __be32 transaction_data[2];
         struct iso_resource_event *e_alloc, *e_dealloc;
 };
 
@@ -1049,7 +1050,8 @@ static void iso_resource_work(struct work_struct *work)
                         r->channels, &channel, &bandwidth,
                         todo == ISO_RES_ALLOC ||
                         todo == ISO_RES_REALLOC ||
-                        todo == ISO_RES_ALLOC_ONCE);
+                        todo == ISO_RES_ALLOC_ONCE,
+                        r->transaction_data);
         /*
          * Is this generation outdated already?  As long as this resource sticks
          * in the idr, it will be scheduled again for a newer generation or at
diff --git a/drivers/firewire/core-iso.c b/drivers/firewire/core-iso.c
index 166f19c6d38d..110e731f5574 100644
--- a/drivers/firewire/core-iso.c
+++ b/drivers/firewire/core-iso.c
@@ -177,9 +177,8 @@ EXPORT_SYMBOL(fw_iso_context_stop);
  */
 
 static int manage_bandwidth(struct fw_card *card, int irm_id, int generation,
-                            int bandwidth, bool allocate)
+                            int bandwidth, bool allocate, __be32 data[2])
 {
-        __be32 data[2];
         int try, new, old = allocate ? BANDWIDTH_AVAILABLE_INITIAL : 0;
 
         /*
@@ -215,9 +214,9 @@ static int manage_bandwidth(struct fw_card *card, int irm_id, int generation,
 }
 
 static int manage_channel(struct fw_card *card, int irm_id, int generation,
-                          u32 channels_mask, u64 offset, bool allocate)
+                u32 channels_mask, u64 offset, bool allocate, __be32 data[2])
 {
-        __be32 data[2], c, all, old;
+        __be32 c, all, old;
         int i, retry = 5;
 
         old = all = allocate ? cpu_to_be32(~0) : 0;
@@ -260,7 +259,7 @@ static int manage_channel(struct fw_card *card, int irm_id, int generation,
 }
 
 static void deallocate_channel(struct fw_card *card, int irm_id,
-                               int generation, int channel)
+                               int generation, int channel, __be32 buffer[2])
 {
         u32 mask;
         u64 offset;
@@ -269,7 +268,7 @@ static void deallocate_channel(struct fw_card *card, int irm_id,
         offset = channel < 32 ? CSR_REGISTER_BASE + CSR_CHANNELS_AVAILABLE_HI :
                                 CSR_REGISTER_BASE + CSR_CHANNELS_AVAILABLE_LO;
 
-        manage_channel(card, irm_id, generation, mask, offset, false);
+        manage_channel(card, irm_id, generation, mask, offset, false, buffer);
 }
 
 /**
@@ -298,7 +297,7 @@ static void deallocate_channel(struct fw_card *card, int irm_id,
  */
 void fw_iso_resource_manage(struct fw_card *card, int generation,
                             u64 channels_mask, int *channel, int *bandwidth,
-                            bool allocate)
+                            bool allocate, __be32 buffer[2])
 {
         u32 channels_hi = channels_mask;        /* channels 31...0 */
         u32 channels_lo = channels_mask >> 32;  /* channels 63...32 */
@@ -310,10 +309,12 @@ void fw_iso_resource_manage(struct fw_card *card, int generation,
 
         if (channels_hi)
                 c = manage_channel(card, irm_id, generation, channels_hi,
-                    CSR_REGISTER_BASE + CSR_CHANNELS_AVAILABLE_HI, allocate);
+                                CSR_REGISTER_BASE + CSR_CHANNELS_AVAILABLE_HI,
+                                allocate, buffer);
         if (channels_lo && c < 0) {
                 c = manage_channel(card, irm_id, generation, channels_lo,
-                    CSR_REGISTER_BASE + CSR_CHANNELS_AVAILABLE_LO, allocate);
+                                CSR_REGISTER_BASE + CSR_CHANNELS_AVAILABLE_LO,
+                                allocate, buffer);
                 if (c >= 0)
                         c += 32;
         }
@@ -325,12 +326,13 @@ void fw_iso_resource_manage(struct fw_card *card, int generation,
         if (*bandwidth == 0)
                 return;
 
-        ret = manage_bandwidth(card, irm_id, generation, *bandwidth, allocate);
+        ret = manage_bandwidth(card, irm_id, generation, *bandwidth,
+                               allocate, buffer);
         if (ret < 0)
                 *bandwidth = 0;
 
         if (allocate && ret < 0 && c >= 0) {
-                deallocate_channel(card, irm_id, generation, c);
+                deallocate_channel(card, irm_id, generation, c, buffer);
                 *channel = ret;
         }
 }
diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h
index c3cfc647e5e3..6052816be353 100644
--- a/drivers/firewire/core.h
+++ b/drivers/firewire/core.h
@@ -120,7 +120,8 @@ void fw_node_event(struct fw_card *card, struct fw_node *node, int event);
 
 int fw_iso_buffer_map(struct fw_iso_buffer *buffer, struct vm_area_struct *vma);
 void fw_iso_resource_manage(struct fw_card *card, int generation,
-                u64 channels_mask, int *channel, int *bandwidth, bool allocate);
+                            u64 channels_mask, int *channel, int *bandwidth,
+                            bool allocate, __be32 buffer[2]);
 
 
 /* -topology */
diff --git a/drivers/firewire/sbp2.c b/drivers/firewire/sbp2.c
index 24c45635376a..8d51568ee143 100644
--- a/drivers/firewire/sbp2.c
+++ b/drivers/firewire/sbp2.c
@@ -201,6 +201,12 @@ static struct fw_device *target_device(struct sbp2_target *tgt)
 #define SBP2_CYCLE_LIMIT                (0xc8 << 12)    /* 200 125us cycles */
 
 /*
+ * There is no transport protocol limit to the CDB length,  but we implement
+ * a fixed length only.  16 bytes is enough for disks larger than 2 TB.
+ */
+#define SBP2_MAX_CDB_SIZE               16
+
+/*
  * The default maximum s/g segment size of a FireWire controller is
  * usually 0x10000, but SBP-2 only allows 0xffff. Since buffers have to
  * be quadlet-aligned, we set the length limit to 0xffff & ~3.
@@ -312,7 +318,7 @@ struct sbp2_command_orb {
                 struct sbp2_pointer next;
                 struct sbp2_pointer data_descriptor;
                 __be32 misc;
-                u8 command_block[12];
+                u8 command_block[SBP2_MAX_CDB_SIZE];
         } request;
         struct scsi_cmnd *cmd;
         scsi_done_fn_t done;
@@ -1146,6 +1152,8 @@ static int sbp2_probe(struct device *dev)
         if (fw_device_enable_phys_dma(device) < 0)
                 goto fail_shost_put;
 
+        shost->max_cmd_len = SBP2_MAX_CDB_SIZE;
+
         if (scsi_add_host(shost, &unit->device) < 0)
                 goto fail_shost_put;
 
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 3582c39f9725..96dda81c9228 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -79,6 +79,12 @@ config GPIO_XILINX
         help
           Say yes here to support the Xilinx FPGA GPIO device
 
+config GPIO_VR41XX
+        tristate "NEC VR4100 series General-purpose I/O Uint support"
+        depends on CPU_VR41XX
+        help
+          Say yes here to support the NEC VR4100 series General-purpose I/O Uint
+
 comment "I2C GPIO expanders:"
 
 config GPIO_MAX732X
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index ef90203e8f3c..9244c6fcd8be 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -13,3 +13,4 @@ obj-$(CONFIG_GPIO_PL061)	+= pl061.o
 obj-$(CONFIG_GPIO_TWL4030)      += twl4030-gpio.o
 obj-$(CONFIG_GPIO_XILINX)       += xilinx_gpio.o
 obj-$(CONFIG_GPIO_BT8XX)        += bt8xxgpio.o
+obj-$(CONFIG_GPIO_VR41XX)       += vr41xx_giu.o
diff --git a/drivers/gpio/pl061.c b/drivers/gpio/pl061.c
index aa8e7cb020d9..4ee4c8367a3f 100644
--- a/drivers/gpio/pl061.c
+++ b/drivers/gpio/pl061.c
@@ -109,6 +109,16 @@ static void pl061_set_value(struct gpio_chip *gc, unsigned offset, int value)
         writeb(!!value << offset, chip->base + (1 << (offset + 2)));
 }
 
+static int pl061_to_irq(struct gpio_chip *gc, unsigned offset)
+{
+        struct pl061_gpio *chip = container_of(gc, struct pl061_gpio, gc);
+
+        if (chip->irq_base == (unsigned) -1)
+                return -EINVAL;
+
+        return chip->irq_base + offset;
+}
+
 /*
  * PL061 GPIO IRQ
  */
@@ -200,7 +210,7 @@ static void pl061_irq_handler(unsigned irq, struct irq_desc *desc)
         desc->chip->ack(irq);
         list_for_each(ptr, chip_list) {
                 unsigned long pending;
-                int gpio;
+                int offset;
 
                 chip = list_entry(ptr, struct pl061_gpio, list);
                 pending = readb(chip->base + GPIOMIS);
@@ -209,8 +219,8 @@ static void pl061_irq_handler(unsigned irq, struct irq_desc *desc)
                 if (pending == 0)
                         continue;
 
-                for_each_bit(gpio, &pending, PL061_GPIO_NR)
-                        generic_handle_irq(gpio_to_irq(gpio));
+                for_each_bit(offset, &pending, PL061_GPIO_NR)
+                        generic_handle_irq(pl061_to_irq(&chip->gc, offset));
         }
         desc->chip->unmask(irq);
 }
@@ -221,7 +231,7 @@ static int __init pl061_probe(struct amba_device *dev, struct amba_id *id)
         struct pl061_gpio *chip;
         struct list_head *chip_list;
         int ret, irq, i;
-        static unsigned long init_irq[BITS_TO_LONGS(NR_IRQS)];
+        static DECLARE_BITMAP(init_irq, NR_IRQS);
 
         pdata = dev->dev.platform_data;
         if (pdata == NULL)
@@ -251,6 +261,7 @@ static int __init pl061_probe(struct amba_device *dev, struct amba_id *id)
         chip->gc.direction_output = pl061_direction_output;
         chip->gc.get = pl061_get_value;
         chip->gc.set = pl061_set_value;
+        chip->gc.to_irq = pl061_to_irq;
         chip->gc.base = pdata->gpio_base;
         chip->gc.ngpio = PL061_GPIO_NR;
         chip->gc.label = dev_name(&dev->dev);
@@ -280,6 +291,7 @@ static int __init pl061_probe(struct amba_device *dev, struct amba_id *id)
         if (!test_and_set_bit(irq, init_irq)) { /* list initialized? */
                 chip_list = kmalloc(sizeof(*chip_list), GFP_KERNEL);
                 if (chip_list == NULL) {
+                        clear_bit(irq, init_irq);
                         ret = -ENOMEM;
                         goto iounmap;
                 }
diff --git a/drivers/char/vr41xx_giu.c b/drivers/gpio/vr41xx_giu.c
index 54c837288d19..b16c9a8c03f5 100644
--- a/drivers/char/vr41xx_giu.c
+++ b/drivers/gpio/vr41xx_giu.c
@@ -2,8 +2,8 @@
  *  Driver for NEC VR4100 series General-purpose I/O Unit.
  *
  *  Copyright (C) 2002 MontaVista Software Inc.
- *      Author: Yoichi Yuasa <yyuasa@mvista.com or source@mvista.com>
- *  Copyright (C) 2003-2007  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ *      Author: Yoichi Yuasa <source@mvista.com>
+ *  Copyright (C) 2003-2009  Yoichi Yuasa <yuasa@linux-mips.org>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -21,29 +21,25 @@
  */
 #include <linux/errno.h>
 #include <linux/fs.h>
+#include <linux/gpio.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
+#include <linux/io.h>
 #include <linux/irq.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
-#include <linux/smp_lock.h>
 #include <linux/spinlock.h>
 #include <linux/types.h>
 
-#include <asm/io.h>
 #include <asm/vr41xx/giu.h>
 #include <asm/vr41xx/irq.h>
 #include <asm/vr41xx/vr41xx.h>
 
-MODULE_AUTHOR("Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>");
+MODULE_AUTHOR("Yoichi Yuasa <yuasa@linux-mips.org>");
 MODULE_DESCRIPTION("NEC VR4100 series General-purpose I/O Unit driver");
 MODULE_LICENSE("GPL");
 
-static int major;       /* default is dynamic major device number */
-module_param(major, int, 0);
-MODULE_PARM_DESC(major, "Major device number");
-
 #define GIUIOSELL       0x00
 #define GIUIOSELH       0x02
 #define GIUPIODL        0x04
@@ -76,9 +72,13 @@ MODULE_PARM_DESC(major, "Major device number");
 #define GPIO_HAS_OUTPUT_ENABLE          0x0002
 #define GPIO_HAS_INTERRUPT_EDGE_SELECT  0x0100
 
-static spinlock_t giu_lock;
+enum {
+        GPIO_INPUT,
+        GPIO_OUTPUT,
+};
+
+static DEFINE_SPINLOCK(giu_lock);
 static unsigned long giu_flags;
-static unsigned int giu_nr_pins;
 
 static void __iomem *giu_base;
 
@@ -89,9 +89,9 @@ static void __iomem *giu_base;
 #define GIUINT_HIGH_OFFSET      16
 #define GIUINT_HIGH_MAX         32
 
-static inline uint16_t giu_set(uint16_t offset, uint16_t set)
+static inline u16 giu_set(u16 offset, u16 set)
 {
-        uint16_t data;
+        u16 data;
 
         data = giu_read(offset);
         data |= set;
@@ -100,9 +100,9 @@ static inline uint16_t giu_set(uint16_t offset, uint16_t set)
         return data;
 }
 
-static inline uint16_t giu_clear(uint16_t offset, uint16_t clear)
+static inline u16 giu_clear(u16 offset, u16 clear)
 {
-        uint16_t data;
+        u16 data;
 
         data = giu_read(offset);
         data &= ~clear;
@@ -145,7 +145,8 @@ static struct irq_chip giuint_low_irq_chip = {
 
 static void ack_giuint_high(unsigned int irq)
 {
-        giu_write(GIUINTSTATH, 1 << (GPIO_PIN_OF_IRQ(irq) - GIUINT_HIGH_OFFSET));
+        giu_write(GIUINTSTATH,
+                  1 << (GPIO_PIN_OF_IRQ(irq) - GIUINT_HIGH_OFFSET));
 }
 
 static void mask_giuint_high(unsigned int irq)
@@ -177,7 +178,7 @@ static struct irq_chip giuint_high_irq_chip = {
 
 static int giu_get_irq(unsigned int irq)
 {
-        uint16_t pendl, pendh, maskl, maskh;
+        u16 pendl, pendh, maskl, maskh;
         int i;
 
         pendl = giu_read(GIUINTSTATL);
@@ -208,14 +209,15 @@ static int giu_get_irq(unsigned int irq)
         return -EINVAL;
 }
 
-void vr41xx_set_irq_trigger(unsigned int pin, irq_trigger_t trigger, irq_signal_t signal)
+void vr41xx_set_irq_trigger(unsigned int pin, irq_trigger_t trigger,
+                            irq_signal_t signal)
 {
-        uint16_t mask;
+        u16 mask;
 
         if (pin < GIUINT_HIGH_OFFSET) {
                 mask = 1 << pin;
                 if (trigger != IRQ_TRIGGER_LEVEL) {
-                        giu_set(GIUINTTYPL, mask);
+                        giu_set(GIUINTTYPL, mask);
                         if (signal == IRQ_SIGNAL_HOLD)
                                 giu_set(GIUINTHTSELL, mask);
                         else
@@ -237,14 +239,14 @@ void vr41xx_set_irq_trigger(unsigned int pin, irq_trigger_t trigger, irq_signal_
                                 }
                         }
                         set_irq_chip_and_handler(GIU_IRQ(pin),
-                                                 &giuint_low_irq_chip,
-                                                 handle_edge_irq);
+                                                 &giuint_low_irq_chip,
+                                                 handle_edge_irq);
                 } else {
                         giu_clear(GIUINTTYPL, mask);
                         giu_clear(GIUINTHTSELL, mask);
                         set_irq_chip_and_handler(GIU_IRQ(pin),
-                                                 &giuint_low_irq_chip,
-                                                 handle_level_irq);
+                                                 &giuint_low_irq_chip,
+                                                 handle_level_irq);
                 }
                 giu_write(GIUINTSTATL, mask);
         } else if (pin < GIUINT_HIGH_MAX) {
@@ -272,14 +274,14 @@ void vr41xx_set_irq_trigger(unsigned int pin, irq_trigger_t trigger, irq_signal_
                                 }
                         }
                         set_irq_chip_and_handler(GIU_IRQ(pin),
-                                                 &giuint_high_irq_chip,
-                                                 handle_edge_irq);
+                                                 &giuint_high_irq_chip,
+                                                 handle_edge_irq);
                 } else {
                         giu_clear(GIUINTTYPH, mask);
                         giu_clear(GIUINTHTSELH, mask);
                         set_irq_chip_and_handler(GIU_IRQ(pin),
-                                                 &giuint_high_irq_chip,
-                                                 handle_level_irq);
+                                                 &giuint_high_irq_chip,
+                                                 handle_level_irq);
                 }
                 giu_write(GIUINTSTATH, mask);
         }
@@ -288,7 +290,7 @@ EXPORT_SYMBOL_GPL(vr41xx_set_irq_trigger);
 
 void vr41xx_set_irq_level(unsigned int pin, irq_level_t level)
 {
-        uint16_t mask;
+        u16 mask;
 
         if (pin < GIUINT_HIGH_OFFSET) {
                 mask = 1 << pin;
@@ -308,89 +310,24 @@ void vr41xx_set_irq_level(unsigned int pin, irq_level_t level)
 }
 EXPORT_SYMBOL_GPL(vr41xx_set_irq_level);
 
-gpio_data_t vr41xx_gpio_get_pin(unsigned int pin)
-{
-        uint16_t reg, mask;
-
-        if (pin >= giu_nr_pins)
-                return GPIO_DATA_INVAL;
-
-        if (pin < 16) {
-                reg = giu_read(GIUPIODL);
-                mask = (uint16_t)1 << pin;
-        } else if (pin < 32) {
-                reg = giu_read(GIUPIODH);
-                mask = (uint16_t)1 << (pin - 16);
-        } else if (pin < 48) {
-                reg = giu_read(GIUPODATL);
-                mask = (uint16_t)1 << (pin - 32);
-        } else {
-                reg = giu_read(GIUPODATH);
-                mask = (uint16_t)1 << (pin - 48);
-        }
-
-        if (reg & mask)
-                return GPIO_DATA_HIGH;
-
-        return GPIO_DATA_LOW;
-}
-EXPORT_SYMBOL_GPL(vr41xx_gpio_get_pin);
-
-int vr41xx_gpio_set_pin(unsigned int pin, gpio_data_t data)
-{
-        uint16_t offset, mask, reg;
-        unsigned long flags;
-
-        if (pin >= giu_nr_pins)
-                return -EINVAL;
-
-        if (pin < 16) {
-                offset = GIUPIODL;
-                mask = (uint16_t)1 << pin;
-        } else if (pin < 32) {
-                offset = GIUPIODH;
-                mask = (uint16_t)1 << (pin - 16);
-        } else if (pin < 48) {
-                offset = GIUPODATL;
-                mask = (uint16_t)1 << (pin - 32);
-        } else {
-                offset = GIUPODATH;
-                mask = (uint16_t)1 << (pin - 48);
-        }
-
-        spin_lock_irqsave(&giu_lock, flags);
-
-        reg = giu_read(offset);
-        if (data == GPIO_DATA_HIGH)
-                reg |= mask;
-        else
-                reg &= ~mask;
-        giu_write(offset, reg);
-
-        spin_unlock_irqrestore(&giu_lock, flags);
-
-        return 0;
-}
-EXPORT_SYMBOL_GPL(vr41xx_gpio_set_pin);
-
-int vr41xx_gpio_set_direction(unsigned int pin, gpio_direction_t dir)
+static int giu_set_direction(struct gpio_chip *chip, unsigned pin, int dir)
 {
-        uint16_t offset, mask, reg;
+        u16 offset, mask, reg;
         unsigned long flags;
 
-        if (pin >= giu_nr_pins)
+        if (pin >= chip->ngpio)
                 return -EINVAL;
 
         if (pin < 16) {
                 offset = GIUIOSELL;
-                mask = (uint16_t)1 << pin;
+                mask = 1 << pin;
         } else if (pin < 32) {
                 offset = GIUIOSELH;
-                mask = (uint16_t)1 << (pin - 16);
+                mask = 1 << (pin - 16);
         } else {
                 if (giu_flags & GPIO_HAS_OUTPUT_ENABLE) {
                         offset = GIUPODATEN;
-                        mask = (uint16_t)1 << (pin - 32);
+                        mask = 1 << (pin - 32);
                 } else {
                         switch (pin) {
                         case 48:
@@ -420,11 +357,10 @@ int vr41xx_gpio_set_direction(unsigned int pin, gpio_direction_t dir)
 
         return 0;
 }
-EXPORT_SYMBOL_GPL(vr41xx_gpio_set_direction);
 
 int vr41xx_gpio_pullupdown(unsigned int pin, gpio_pull_t pull)
 {
-        uint16_t reg, mask;
+        u16 reg, mask;
         unsigned long flags;
 
         if ((giu_flags & GPIO_HAS_PULLUPDOWN_IO) != GPIO_HAS_PULLUPDOWN_IO)
@@ -433,7 +369,7 @@ int vr41xx_gpio_pullupdown(unsigned int pin, gpio_pull_t pull)
         if (pin >= 15)
                 return -EINVAL;
 
-        mask = (uint16_t)1 << pin;
+        mask = 1 << pin;
 
         spin_lock_irqsave(&giu_lock, flags);
 
@@ -460,146 +396,125 @@ int vr41xx_gpio_pullupdown(unsigned int pin, gpio_pull_t pull)
 }
 EXPORT_SYMBOL_GPL(vr41xx_gpio_pullupdown);
 
-static ssize_t gpio_read(struct file *file, char __user *buf, size_t len,
-                         loff_t *ppos)
+static int vr41xx_gpio_get(struct gpio_chip *chip, unsigned pin)
 {
-        unsigned int pin;
-        char value = '0';
+        u16 reg, mask;
 
-        pin = iminor(file->f_path.dentry->d_inode);
-        if (pin >= giu_nr_pins)
-                return -EBADF;
-
-        if (vr41xx_gpio_get_pin(pin) == GPIO_DATA_HIGH)
-                value = '1';
+        if (pin >= chip->ngpio)
+                return -EINVAL;
 
-        if (len <= 0)
-                return -EFAULT;
+        if (pin < 16) {
+                reg = giu_read(GIUPIODL);
+                mask = 1 << pin;
+        } else if (pin < 32) {
+                reg = giu_read(GIUPIODH);
+                mask = 1 << (pin - 16);
+        } else if (pin < 48) {
+                reg = giu_read(GIUPODATL);
+                mask = 1 << (pin - 32);
+        } else {
+                reg = giu_read(GIUPODATH);
+                mask = 1 << (pin - 48);
+        }
 
-        if (put_user(value, buf))
-                return -EFAULT;
+        if (reg & mask)
+                return 1;
 
-        return 1;
+        return 0;
 }
 
-static ssize_t gpio_write(struct file *file, const char __user *data,
-                          size_t len, loff_t *ppos)
+static void vr41xx_gpio_set(struct gpio_chip *chip, unsigned pin,
+                            int value)
 {
-        unsigned int pin;
-        size_t i;
-        char c;
-        int retval = 0;
-
-        pin = iminor(file->f_path.dentry->d_inode);
-        if (pin >= giu_nr_pins)
-                return -EBADF;
-
-        for (i = 0; i < len; i++) {
-                if (get_user(c, data + i))
-                        return -EFAULT;
-
-                switch (c) {
-                case '0':
-                        retval = vr41xx_gpio_set_pin(pin, GPIO_DATA_LOW);
-                        break;
-                case '1':
-                        retval = vr41xx_gpio_set_pin(pin, GPIO_DATA_HIGH);
-                        break;
-                case 'D':
-                        printk(KERN_INFO "GPIO%d: pull down\n", pin);
-                        retval = vr41xx_gpio_pullupdown(pin, GPIO_PULL_DOWN);
-                        break;
-                case 'd':
-                        printk(KERN_INFO "GPIO%d: pull up/down disable\n", pin);
-                        retval = vr41xx_gpio_pullupdown(pin, GPIO_PULL_DISABLE);
-                        break;
-                case 'I':
-                        printk(KERN_INFO "GPIO%d: input\n", pin);
-                        retval = vr41xx_gpio_set_direction(pin, GPIO_INPUT);
-                        break;
-                case 'O':
-                        printk(KERN_INFO "GPIO%d: output\n", pin);
-                        retval = vr41xx_gpio_set_direction(pin, GPIO_OUTPUT);
-                        break;
-                case 'o':
-                        printk(KERN_INFO "GPIO%d: output disable\n", pin);
-                        retval = vr41xx_gpio_set_direction(pin, GPIO_OUTPUT_DISABLE);
-                        break;
-                case 'P':
-                        printk(KERN_INFO "GPIO%d: pull up\n", pin);
-                        retval = vr41xx_gpio_pullupdown(pin, GPIO_PULL_UP);
-                        break;
-                case 'p':
-                        printk(KERN_INFO "GPIO%d: pull up/down disable\n", pin);
-                        retval = vr41xx_gpio_pullupdown(pin, GPIO_PULL_DISABLE);
-                        break;
-                default:
-                        break;
-                }
+        u16 offset, mask, reg;
+        unsigned long flags;
+
+        if (pin >= chip->ngpio)
+                return;
 
-                if (retval < 0)
-                        break;
+        if (pin < 16) {
+                offset = GIUPIODL;
+                mask = 1 << pin;
+        } else if (pin < 32) {
+                offset = GIUPIODH;
+                mask = 1 << (pin - 16);
+        } else if (pin < 48) {
+                offset = GIUPODATL;
+                mask = 1 << (pin - 32);
+        } else {
+                offset = GIUPODATH;
+                mask = 1 << (pin - 48);
         }
 
-        return i;
+        spin_lock_irqsave(&giu_lock, flags);
+
+        reg = giu_read(offset);
+        if (value)
+                reg |= mask;
+        else
+                reg &= ~mask;
+        giu_write(offset, reg);
+
+        spin_unlock_irqrestore(&giu_lock, flags);
 }
 
-static int gpio_open(struct inode *inode, struct file *file)
+
+static int vr41xx_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
 {
-        unsigned int pin;
+        return giu_set_direction(chip, offset, GPIO_INPUT);
+}
 
-        cycle_kernel_lock();
-        pin = iminor(inode);
-        if (pin >= giu_nr_pins)
-                return -EBADF;
+static int vr41xx_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
+                                int value)
+{
+        vr41xx_gpio_set(chip, offset, value);
 
-        return nonseekable_open(inode, file);
+        return giu_set_direction(chip, offset, GPIO_OUTPUT);
 }
 
-static int gpio_release(struct inode *inode, struct file *file)
+static int vr41xx_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
 {
-        unsigned int pin;
-
-        pin = iminor(inode);
-        if (pin >= giu_nr_pins)
-                return -EBADF;
+        if (offset >= chip->ngpio)
+                return -EINVAL;
 
-        return 0;
+        return GIU_IRQ_BASE + offset;
 }
 
-static const struct file_operations gpio_fops = {
-        .owner          = THIS_MODULE,
-        .read           = gpio_read,
-        .write          = gpio_write,
-        .open           = gpio_open,
-        .release        = gpio_release,
+static struct gpio_chip vr41xx_gpio_chip = {
+        .label                  = "vr41xx",
+        .owner                  = THIS_MODULE,
+        .direction_input        = vr41xx_gpio_direction_input,
+        .get                    = vr41xx_gpio_get,
+        .direction_output       = vr41xx_gpio_direction_output,
+        .set                    = vr41xx_gpio_set,
+        .to_irq                 = vr41xx_gpio_to_irq,
 };
 
-static int __devinit giu_probe(struct platform_device *dev)
+static int __devinit giu_probe(struct platform_device *pdev)
 {
         struct resource *res;
         unsigned int trigger, i, pin;
         struct irq_chip *chip;
         int irq, retval;
 
-        switch (dev->id) {
+        switch (pdev->id) {
         case GPIO_50PINS_PULLUPDOWN:
                 giu_flags = GPIO_HAS_PULLUPDOWN_IO;
-                giu_nr_pins = 50;
+                vr41xx_gpio_chip.ngpio = 50;
                 break;
         case GPIO_36PINS:
-                giu_nr_pins = 36;
+                vr41xx_gpio_chip.ngpio = 36;
                 break;
         case GPIO_48PINS_EDGE_SELECT:
                 giu_flags = GPIO_HAS_INTERRUPT_EDGE_SELECT;
-                giu_nr_pins = 48;
+                vr41xx_gpio_chip.ngpio = 48;
                 break;
         default:
-                printk(KERN_ERR "GIU: unknown ID %d\n", dev->id);
+                dev_err(&pdev->dev, "GIU: unknown ID %d\n", pdev->id);
                 return -ENODEV;
         }
 
-        res = platform_get_resource(dev, IORESOURCE_MEM, 0);
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         if (!res)
                 return -EBUSY;
 
@@ -607,19 +522,9 @@ static int __devinit giu_probe(struct platform_device *dev)
         if (!giu_base)
                 return -ENOMEM;
 
-        retval = register_chrdev(major, "GIU", &gpio_fops);
-        if (retval < 0) {
-                iounmap(giu_base);
-                giu_base = NULL;
-                return retval;
-        }
-
-        if (major == 0) {
-                major = retval;
-                printk(KERN_INFO "GIU: major number %d\n", major);
-        }
+        vr41xx_gpio_chip.dev = &pdev->dev;
 
-        spin_lock_init(&giu_lock);
+        retval = gpiochip_add(&vr41xx_gpio_chip);
 
         giu_write(GIUINTENL, 0);
         giu_write(GIUINTENH, 0);
@@ -640,14 +545,14 @@ static int __devinit giu_probe(struct platform_device *dev)
 
         }
 
-        irq = platform_get_irq(dev, 0);
+        irq = platform_get_irq(pdev, 0);
         if (irq < 0 || irq >= nr_irqs)
                 return -EBUSY;
 
         return cascade_irq(irq, giu_get_irq);
 }
 
-static int __devexit giu_remove(struct platform_device *dev)
+static int __devexit giu_remove(struct platform_device *pdev)
 {
         if (giu_base) {
                 iounmap(giu_base);
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index c961fe415aef..39b393d38bb3 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -81,6 +81,7 @@ config DRM_I830
 
 config DRM_I915
         tristate "i915 driver"
+        depends on AGP_INTEL
         select FB_CFB_FILLRECT
         select FB_CFB_COPYAREA
         select FB_CFB_IMAGEBLIT
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 4e89ab08b7b8..fe23f29f7cba 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -16,6 +16,7 @@ drm-y       :=	drm_auth.o drm_bufs.o drm_cache.o \
 drm-$(CONFIG_COMPAT) += drm_ioc32.o
 
 obj-$(CONFIG_DRM)       += drm.o
+obj-$(CONFIG_DRM_TTM)   += ttm/
 obj-$(CONFIG_DRM_TDFX)  += tdfx/
 obj-$(CONFIG_DRM_R128)  += r128/
 obj-$(CONFIG_DRM_RADEON)+= radeon/
@@ -26,4 +27,3 @@ obj-$(CONFIG_DRM_I915)  += i915/
 obj-$(CONFIG_DRM_SIS)   += sis/
 obj-$(CONFIG_DRM_SAVAGE)+= savage/
 obj-$(CONFIG_DRM_VIA)   +=via/
-obj-$(CONFIG_DRM_TTM)   += ttm/
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 8fab7890a363..33be210d6723 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -1461,7 +1461,7 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
                 goto out;
         }
 
-        if (crtc_req->count_connectors > 0 && !mode && !fb) {
+        if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
                 DRM_DEBUG("Count connectors is %d but no mode or fb set\n",
                           crtc_req->count_connectors);
                 ret = -EINVAL;
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index a6f73f1e99d9..6aaa2cb23365 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -706,8 +706,8 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
         struct drm_encoder **save_encoders, *new_encoder;
         struct drm_framebuffer *old_fb = NULL;
         bool save_enabled;
-        bool mode_changed = false;
-        bool fb_changed = false;
+        bool mode_changed = false; /* if true do a full mode set */
+        bool fb_changed = false; /* if true and !mode_changed just do a flip */
         struct drm_connector *connector;
         int count = 0, ro, fail = 0;
         struct drm_crtc_helper_funcs *crtc_funcs;
@@ -758,6 +758,8 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
                 if (set->crtc->fb == NULL) {
                         DRM_DEBUG("crtc has no fb, full mode set\n");
                         mode_changed = true;
+                } else if (set->fb == NULL) {
+                        mode_changed = true;
                 } else if ((set->fb->bits_per_pixel !=
                          set->crtc->fb->bits_per_pixel) ||
                          set->fb->depth != set->crtc->fb->depth)
@@ -1090,6 +1092,8 @@ int drm_helper_resume_force_mode(struct drm_device *dev)
                 if (ret == false)
                         DRM_ERROR("failed to set mode on crtc %p\n", crtc);
         }
+        /* disable the unused connectors while restoring the modesetting */
+        drm_helper_disable_unused_functions(dev);
         return 0;
 }
 EXPORT_SYMBOL(drm_helper_resume_force_mode);
diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c
index 2960b6d73456..9903f270e440 100644
--- a/drivers/gpu/drm/drm_debugfs.c
+++ b/drivers/gpu/drm/drm_debugfs.c
@@ -101,6 +101,10 @@ int drm_debugfs_create_files(struct drm_info_list *files, int count,
                         continue;
 
                 tmp = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL);
+                if (tmp == NULL) {
+                        ret = -1;
+                        goto fail;
+                }
                 ent = debugfs_create_file(files[i].name, S_IFREG | S_IRUGO,
                                           root, tmp, &drm_debugfs_fops);
                 if (!ent) {
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 7d0835226f6e..80cc6d06d61b 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -294,10 +294,10 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
         unsigned vactive = (pt->vactive_vblank_hi & 0xf0) << 4 | pt->vactive_lo;
         unsigned hblank = (pt->hactive_hblank_hi & 0xf) << 8 | pt->hblank_lo;
         unsigned vblank = (pt->vactive_vblank_hi & 0xf) << 8 | pt->vblank_lo;
-        unsigned hsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0x3) << 8 | pt->hsync_offset_lo;
-        unsigned hsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0xc) << 6 | pt->hsync_pulse_width_lo;
-        unsigned vsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0x30) | (pt->vsync_offset_pulse_width_lo & 0xf);
-        unsigned vsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0xc0) >> 2 | pt->vsync_offset_pulse_width_lo >> 4;
+        unsigned hsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc0) << 2 | pt->hsync_offset_lo;
+        unsigned hsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x30) << 4 | pt->hsync_pulse_width_lo;
+        unsigned vsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc) >> 2 | pt->vsync_offset_pulse_width_lo >> 4;
+        unsigned vsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x3) << 4 | (pt->vsync_offset_pulse_width_lo & 0xf);
 
         /* ignore tiny modes */
         if (hactive < 64 || vactive < 64)
@@ -347,8 +347,8 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
         mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ?
                 DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
 
-        mode->width_mm = pt->width_mm_lo | (pt->width_height_mm_hi & 0xf) << 8;
-        mode->height_mm = pt->height_mm_lo | (pt->width_height_mm_hi & 0xf0) << 4;
+        mode->width_mm = pt->width_mm_lo | (pt->width_height_mm_hi & 0xf0) << 4;
+        mode->height_mm = pt->height_mm_lo | (pt->width_height_mm_hi & 0xf) << 8;
 
         if (quirks & EDID_QUIRK_DETAILED_IN_CM) {
                 mode->width_mm *= 10;
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 8104ecaea26f..ffe8f4394d50 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -134,26 +134,29 @@ drm_gem_object_alloc(struct drm_device *dev, size_t size)
         BUG_ON((size & (PAGE_SIZE - 1)) != 0);
 
         obj = kzalloc(sizeof(*obj), GFP_KERNEL);
+        if (!obj)
+                goto free;
 
         obj->dev = dev;
         obj->filp = shmem_file_setup("drm mm object", size, VM_NORESERVE);
-        if (IS_ERR(obj->filp)) {
-                kfree(obj);
-                return NULL;
-        }
+        if (IS_ERR(obj->filp))
+                goto free;
 
         kref_init(&obj->refcount);
         kref_init(&obj->handlecount);
         obj->size = size;
         if (dev->driver->gem_init_object != NULL &&
             dev->driver->gem_init_object(obj) != 0) {
-                fput(obj->filp);
-                kfree(obj);
-                return NULL;
+                goto fput;
         }
         atomic_inc(&dev->object_count);
         atomic_add(obj->size, &dev->object_memory);
         return obj;
+fput:
+        fput(obj->filp);
+free:
+        kfree(obj);
+        return NULL;
 }
 EXPORT_SYMBOL(drm_gem_object_alloc);
 
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index 155a5bbce680..55bb8a82d612 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -489,7 +489,7 @@ int drm_put_minor(struct drm_minor **minor_p)
  */
 void drm_put_dev(struct drm_device *dev)
 {
-        struct drm_driver *driver = dev->driver;
+        struct drm_driver *driver;
         struct drm_map_list *r_list, *list_temp;
 
         DRM_DEBUG("\n");
@@ -498,6 +498,7 @@ void drm_put_dev(struct drm_device *dev)
                 DRM_ERROR("cleanup called no dev\n");
                 return;
         }
+        driver = dev->driver;
 
         drm_vblank_cleanup(dev);
 
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 51c5a050aa73..30d6b99fb302 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -13,6 +13,8 @@ i915-y := i915_drv.o i915_dma.o i915_irq.o i915_mem.o \
           intel_crt.o \
           intel_lvds.o \
           intel_bios.o \
+          intel_dp.o \
+          intel_dp_i2c.o \
           intel_hdmi.o \
           intel_sdvo.o \
           intel_modes.o \
diff --git a/drivers/gpu/drm/i915/dvo.h b/drivers/gpu/drm/i915/dvo.h
index e747ac42fe3a..288fc50627e2 100644
--- a/drivers/gpu/drm/i915/dvo.h
+++ b/drivers/gpu/drm/i915/dvo.h
@@ -37,7 +37,7 @@ struct intel_dvo_device {
         /* GPIO register used for i2c bus to control this device */
         u32 gpio;
         int slave_addr;
-        struct intel_i2c_chan *i2c_bus;
+        struct i2c_adapter *i2c_bus;
 
         const struct intel_dvo_dev_ops *dev_ops;
         void *dev_priv;
@@ -52,7 +52,7 @@ struct intel_dvo_dev_ops {
          * Returns NULL if the device does not exist.
          */
         bool (*init)(struct intel_dvo_device *dvo,
-                     struct intel_i2c_chan *i2cbus);
+                     struct i2c_adapter *i2cbus);
 
         /*
          * Called to allow the output a chance to create properties after the
diff --git a/drivers/gpu/drm/i915/dvo_ch7017.c b/drivers/gpu/drm/i915/dvo_ch7017.c
index 03d4b4973b02..621815b531db 100644
--- a/drivers/gpu/drm/i915/dvo_ch7017.c
+++ b/drivers/gpu/drm/i915/dvo_ch7017.c
@@ -176,19 +176,20 @@ static void ch7017_dpms(struct intel_dvo_device *dvo, int mode);
 
 static bool ch7017_read(struct intel_dvo_device *dvo, int addr, uint8_t *val)
 {
-        struct intel_i2c_chan *i2cbus = dvo->i2c_bus;
+        struct i2c_adapter *adapter = dvo->i2c_bus;
+        struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter);
         u8 out_buf[2];
         u8 in_buf[2];
 
         struct i2c_msg msgs[] = {
                 {
-                        .addr = i2cbus->slave_addr,
+                        .addr = dvo->slave_addr,
                         .flags = 0,
                         .len = 1,
                         .buf = out_buf,
                 },
                 {
-                        .addr = i2cbus->slave_addr,
+                        .addr = dvo->slave_addr,
                         .flags = I2C_M_RD,
                         .len = 1,
                         .buf = in_buf,
@@ -208,10 +209,11 @@ static bool ch7017_read(struct intel_dvo_device *dvo, int addr, uint8_t *val)
 
 static bool ch7017_write(struct intel_dvo_device *dvo, int addr, uint8_t val)
 {
-        struct intel_i2c_chan *i2cbus = dvo->i2c_bus;
+        struct i2c_adapter *adapter = dvo->i2c_bus;
+        struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter);
         uint8_t out_buf[2];
         struct i2c_msg msg = {
-                .addr = i2cbus->slave_addr,
+                .addr = dvo->slave_addr,
                 .flags = 0,
                 .len = 2,
                 .buf = out_buf,
@@ -228,8 +230,9 @@ static bool ch7017_write(struct intel_dvo_device *dvo, int addr, uint8_t val)
 
 /** Probes for a CH7017 on the given bus and slave address. */
 static bool ch7017_init(struct intel_dvo_device *dvo,
-                        struct intel_i2c_chan *i2cbus)
+                        struct i2c_adapter *adapter)
 {
+        struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter);
         struct ch7017_priv *priv;
         uint8_t val;
 
@@ -237,8 +240,7 @@ static bool ch7017_init(struct intel_dvo_device *dvo,
         if (priv == NULL)
                 return false;
 
-        dvo->i2c_bus = i2cbus;
-        dvo->i2c_bus->slave_addr = dvo->slave_addr;
+        dvo->i2c_bus = adapter;
         dvo->dev_priv = priv;
 
         if (!ch7017_read(dvo, CH7017_DEVICE_ID, &val))
@@ -248,7 +250,7 @@ static bool ch7017_init(struct intel_dvo_device *dvo,
             val != CH7018_DEVICE_ID_VALUE &&
             val != CH7019_DEVICE_ID_VALUE) {
                 DRM_DEBUG("ch701x not detected, got %d: from %s Slave %d.\n",
-                          val, i2cbus->adapter.name,i2cbus->slave_addr);
+                          val, i2cbus->adapter.name,dvo->slave_addr);
                 goto fail;
         }
 
diff --git a/drivers/gpu/drm/i915/dvo_ch7xxx.c b/drivers/gpu/drm/i915/dvo_ch7xxx.c
index d2fd95dbd034..a9b896289680 100644
--- a/drivers/gpu/drm/i915/dvo_ch7xxx.c
+++ b/drivers/gpu/drm/i915/dvo_ch7xxx.c
@@ -123,19 +123,20 @@ static char *ch7xxx_get_id(uint8_t vid)
 static bool ch7xxx_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch)
 {
         struct ch7xxx_priv *ch7xxx= dvo->dev_priv;
-        struct intel_i2c_chan *i2cbus = dvo->i2c_bus;
+        struct i2c_adapter *adapter = dvo->i2c_bus;
+        struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter);
         u8 out_buf[2];
         u8 in_buf[2];
 
         struct i2c_msg msgs[] = {
                 {
-                        .addr = i2cbus->slave_addr,
+                        .addr = dvo->slave_addr,
                         .flags = 0,
                         .len = 1,
                         .buf = out_buf,
                 },
                 {
-                        .addr = i2cbus->slave_addr,
+                        .addr = dvo->slave_addr,
                         .flags = I2C_M_RD,
                         .len = 1,
                         .buf = in_buf,
@@ -152,7 +153,7 @@ static bool ch7xxx_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch)
 
         if (!ch7xxx->quiet) {
                 DRM_DEBUG("Unable to read register 0x%02x from %s:%02x.\n",
-                          addr, i2cbus->adapter.name, i2cbus->slave_addr);
+                          addr, i2cbus->adapter.name, dvo->slave_addr);
         }
         return false;
 }
@@ -161,10 +162,11 @@ static bool ch7xxx_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch)
 static bool ch7xxx_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch)
 {
         struct ch7xxx_priv *ch7xxx = dvo->dev_priv;
-        struct intel_i2c_chan *i2cbus = dvo->i2c_bus;
+        struct i2c_adapter *adapter = dvo->i2c_bus;
+        struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter);
         uint8_t out_buf[2];
         struct i2c_msg msg = {
-                .addr = i2cbus->slave_addr,
+                .addr = dvo->slave_addr,
                 .flags = 0,
                 .len = 2,
                 .buf = out_buf,
@@ -178,14 +180,14 @@ static bool ch7xxx_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch)
 
         if (!ch7xxx->quiet) {
                 DRM_DEBUG("Unable to write register 0x%02x to %s:%d.\n",
-                          addr, i2cbus->adapter.name, i2cbus->slave_addr);
+                          addr, i2cbus->adapter.name, dvo->slave_addr);
         }
 
         return false;
 }
 
 static bool ch7xxx_init(struct intel_dvo_device *dvo,
-                        struct intel_i2c_chan *i2cbus)
+                        struct i2c_adapter *adapter)
 {
         /* this will detect the CH7xxx chip on the specified i2c bus */
         struct ch7xxx_priv *ch7xxx;
@@ -196,8 +198,7 @@ static bool ch7xxx_init(struct intel_dvo_device *dvo,
         if (ch7xxx == NULL)
                 return false;
 
-        dvo->i2c_bus = i2cbus;
-        dvo->i2c_bus->slave_addr = dvo->slave_addr;
+        dvo->i2c_bus = adapter;
         dvo->dev_priv = ch7xxx;
         ch7xxx->quiet = true;
 
@@ -207,7 +208,7 @@ static bool ch7xxx_init(struct intel_dvo_device *dvo,
         name = ch7xxx_get_id(vendor);
         if (!name) {
                 DRM_DEBUG("ch7xxx not detected; got 0x%02x from %s slave %d.\n",
-                          vendor, i2cbus->adapter.name, i2cbus->slave_addr);
+                          vendor, adapter->name, dvo->slave_addr);
                 goto out;
         }
 
@@ -217,7 +218,7 @@ static bool ch7xxx_init(struct intel_dvo_device *dvo,
 
         if (device != CH7xxx_DID) {
                 DRM_DEBUG("ch7xxx not detected; got 0x%02x from %s slave %d.\n",
-                          vendor, i2cbus->adapter.name, i2cbus->slave_addr);
+                          vendor, adapter->name, dvo->slave_addr);
                 goto out;
         }
 
diff --git a/drivers/gpu/drm/i915/dvo_ivch.c b/drivers/gpu/drm/i915/dvo_ivch.c
index 0c8d375e8e37..aa176f9921fe 100644
--- a/drivers/gpu/drm/i915/dvo_ivch.c
+++ b/drivers/gpu/drm/i915/dvo_ivch.c
@@ -169,13 +169,14 @@ static void ivch_dump_regs(struct intel_dvo_device *dvo);
 static bool ivch_read(struct intel_dvo_device *dvo, int addr, uint16_t *data)
 {
         struct ivch_priv *priv = dvo->dev_priv;
-        struct intel_i2c_chan *i2cbus = dvo->i2c_bus;
+        struct i2c_adapter *adapter = dvo->i2c_bus;
+        struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter);
         u8 out_buf[1];
         u8 in_buf[2];
 
         struct i2c_msg msgs[] = {
                 {
-                        .addr = i2cbus->slave_addr,
+                        .addr = dvo->slave_addr,
                         .flags = I2C_M_RD,
                         .len = 0,
                 },
@@ -186,7 +187,7 @@ static bool ivch_read(struct intel_dvo_device *dvo, int addr, uint16_t *data)
                         .buf = out_buf,
                 },
                 {
-                        .addr = i2cbus->slave_addr,
+                        .addr = dvo->slave_addr,
                         .flags = I2C_M_RD | I2C_M_NOSTART,
                         .len = 2,
                         .buf = in_buf,
@@ -202,7 +203,7 @@ static bool ivch_read(struct intel_dvo_device *dvo, int addr, uint16_t *data)
 
         if (!priv->quiet) {
                 DRM_DEBUG("Unable to read register 0x%02x from %s:%02x.\n",
-                          addr, i2cbus->adapter.name, i2cbus->slave_addr);
+                          addr, i2cbus->adapter.name, dvo->slave_addr);
         }
         return false;
 }
@@ -211,10 +212,11 @@ static bool ivch_read(struct intel_dvo_device *dvo, int addr, uint16_t *data)
 static bool ivch_write(struct intel_dvo_device *dvo, int addr, uint16_t data)
 {
         struct ivch_priv *priv = dvo->dev_priv;
-        struct intel_i2c_chan *i2cbus = dvo->i2c_bus;
+        struct i2c_adapter *adapter = dvo->i2c_bus;
+        struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter);
         u8 out_buf[3];
         struct i2c_msg msg = {
-                .addr = i2cbus->slave_addr,
+                .addr = dvo->slave_addr,
                 .flags = 0,
                 .len = 3,
                 .buf = out_buf,
@@ -229,7 +231,7 @@ static bool ivch_write(struct intel_dvo_device *dvo, int addr, uint16_t data)
 
         if (!priv->quiet) {
                 DRM_DEBUG("Unable to write register 0x%02x to %s:%d.\n",
-                          addr, i2cbus->adapter.name, i2cbus->slave_addr);
+                          addr, i2cbus->adapter.name, dvo->slave_addr);
         }
 
         return false;
@@ -237,7 +239,7 @@ static bool ivch_write(struct intel_dvo_device *dvo, int addr, uint16_t data)
 
 /** Probes the given bus and slave address for an ivch */
 static bool ivch_init(struct intel_dvo_device *dvo,
-                      struct intel_i2c_chan *i2cbus)
+                      struct i2c_adapter *adapter)
 {
         struct ivch_priv *priv;
         uint16_t temp;
@@ -246,8 +248,7 @@ static bool ivch_init(struct intel_dvo_device *dvo,
         if (priv == NULL)
                 return false;
 
-        dvo->i2c_bus = i2cbus;
-        dvo->i2c_bus->slave_addr = dvo->slave_addr;
+        dvo->i2c_bus = adapter;
         dvo->dev_priv = priv;
         priv->quiet = true;
 
diff --git a/drivers/gpu/drm/i915/dvo_sil164.c b/drivers/gpu/drm/i915/dvo_sil164.c
index 033a4bb070b2..e1c1f7341e5c 100644
--- a/drivers/gpu/drm/i915/dvo_sil164.c
+++ b/drivers/gpu/drm/i915/dvo_sil164.c
@@ -76,19 +76,20 @@ struct sil164_priv {
 static bool sil164_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch)
 {
         struct sil164_priv *sil = dvo->dev_priv;
-        struct intel_i2c_chan *i2cbus = dvo->i2c_bus;
+        struct i2c_adapter *adapter = dvo->i2c_bus;
+        struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter);
         u8 out_buf[2];
         u8 in_buf[2];
 
         struct i2c_msg msgs[] = {
                 {
-                        .addr = i2cbus->slave_addr,
+                        .addr = dvo->slave_addr,
                         .flags = 0,
                         .len = 1,
                         .buf = out_buf,
                 },
                 {
-                        .addr = i2cbus->slave_addr,
+                        .addr = dvo->slave_addr,
                         .flags = I2C_M_RD,
                         .len = 1,
                         .buf = in_buf,
@@ -105,7 +106,7 @@ static bool sil164_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch)
 
         if (!sil->quiet) {
                 DRM_DEBUG("Unable to read register 0x%02x from %s:%02x.\n",
-                          addr, i2cbus->adapter.name, i2cbus->slave_addr);
+                          addr, i2cbus->adapter.name, dvo->slave_addr);
         }
         return false;
 }
@@ -113,10 +114,11 @@ static bool sil164_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch)
 static bool sil164_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch)
 {
         struct sil164_priv *sil= dvo->dev_priv;
-        struct intel_i2c_chan *i2cbus = dvo->i2c_bus;
+        struct i2c_adapter *adapter = dvo->i2c_bus;
+        struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter);
         uint8_t out_buf[2];
         struct i2c_msg msg = {
-                .addr = i2cbus->slave_addr,
+                .addr = dvo->slave_addr,
                 .flags = 0,
                 .len = 2,
                 .buf = out_buf,
@@ -130,7 +132,7 @@ static bool sil164_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch)
 
         if (!sil->quiet) {
                 DRM_DEBUG("Unable to write register 0x%02x to %s:%d.\n",
-                          addr, i2cbus->adapter.name, i2cbus->slave_addr);
+                          addr, i2cbus->adapter.name, dvo->slave_addr);
         }
 
         return false;
@@ -138,7 +140,7 @@ static bool sil164_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch)
 
 /* Silicon Image 164 driver for chip on i2c bus */
 static bool sil164_init(struct intel_dvo_device *dvo,
-                        struct intel_i2c_chan *i2cbus)
+                        struct i2c_adapter *adapter)
 {
         /* this will detect the SIL164 chip on the specified i2c bus */
         struct sil164_priv *sil;
@@ -148,8 +150,7 @@ static bool sil164_init(struct intel_dvo_device *dvo,
         if (sil == NULL)
                 return false;
 
-        dvo->i2c_bus = i2cbus;
-        dvo->i2c_bus->slave_addr = dvo->slave_addr;
+        dvo->i2c_bus = adapter;
         dvo->dev_priv = sil;
         sil->quiet = true;
 
@@ -158,7 +159,7 @@ static bool sil164_init(struct intel_dvo_device *dvo,
 
         if (ch != (SIL164_VID & 0xff)) {
                 DRM_DEBUG("sil164 not detected got %d: from %s Slave %d.\n",
-                          ch, i2cbus->adapter.name, i2cbus->slave_addr);
+                          ch, adapter->name, dvo->slave_addr);
                 goto out;
         }
 
@@ -167,7 +168,7 @@ static bool sil164_init(struct intel_dvo_device *dvo,
 
         if (ch != (SIL164_DID & 0xff)) {
                 DRM_DEBUG("sil164 not detected got %d: from %s Slave %d.\n",
-                          ch, i2cbus->adapter.name, i2cbus->slave_addr);
+                          ch, adapter->name, dvo->slave_addr);
                 goto out;
         }
         sil->quiet = false;
diff --git a/drivers/gpu/drm/i915/dvo_tfp410.c b/drivers/gpu/drm/i915/dvo_tfp410.c
index 207fda806ebf..9ecc907384ec 100644
--- a/drivers/gpu/drm/i915/dvo_tfp410.c
+++ b/drivers/gpu/drm/i915/dvo_tfp410.c
@@ -101,19 +101,20 @@ struct tfp410_priv {
 static bool tfp410_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch)
 {
         struct tfp410_priv *tfp = dvo->dev_priv;
-        struct intel_i2c_chan *i2cbus = dvo->i2c_bus;
+        struct i2c_adapter *adapter = dvo->i2c_bus;
+        struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter);
         u8 out_buf[2];
         u8 in_buf[2];
 
         struct i2c_msg msgs[] = {
                 {
-                        .addr = i2cbus->slave_addr,
+                        .addr = dvo->slave_addr,
                         .flags = 0,
                         .len = 1,
                         .buf = out_buf,
                 },
                 {
-                        .addr = i2cbus->slave_addr,
+                        .addr = dvo->slave_addr,
                         .flags = I2C_M_RD,
                         .len = 1,
                         .buf = in_buf,
@@ -130,7 +131,7 @@ static bool tfp410_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch)
 
         if (!tfp->quiet) {
                 DRM_DEBUG("Unable to read register 0x%02x from %s:%02x.\n",
-                          addr, i2cbus->adapter.name, i2cbus->slave_addr);
+                          addr, i2cbus->adapter.name, dvo->slave_addr);
         }
         return false;
 }
@@ -138,10 +139,11 @@ static bool tfp410_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch)
 static bool tfp410_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch)
 {
         struct tfp410_priv *tfp = dvo->dev_priv;
-        struct intel_i2c_chan *i2cbus = dvo->i2c_bus;
+        struct i2c_adapter *adapter = dvo->i2c_bus;
+        struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter);
         uint8_t out_buf[2];
         struct i2c_msg msg = {
-                .addr = i2cbus->slave_addr,
+                .addr = dvo->slave_addr,
                 .flags = 0,
                 .len = 2,
                 .buf = out_buf,
@@ -155,7 +157,7 @@ static bool tfp410_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch)
 
         if (!tfp->quiet) {
                 DRM_DEBUG("Unable to write register 0x%02x to %s:%d.\n",
-                          addr, i2cbus->adapter.name, i2cbus->slave_addr);
+                          addr, i2cbus->adapter.name, dvo->slave_addr);
         }
 
         return false;
@@ -174,7 +176,7 @@ static int tfp410_getid(struct intel_dvo_device *dvo, int addr)
 
 /* Ti TFP410 driver for chip on i2c bus */
 static bool tfp410_init(struct intel_dvo_device *dvo,
-                        struct intel_i2c_chan *i2cbus)
+                        struct i2c_adapter *adapter)
 {
         /* this will detect the tfp410 chip on the specified i2c bus */
         struct tfp410_priv *tfp;
@@ -184,20 +186,19 @@ static bool tfp410_init(struct intel_dvo_device *dvo,
         if (tfp == NULL)
                 return false;
 
-        dvo->i2c_bus = i2cbus;
-        dvo->i2c_bus->slave_addr = dvo->slave_addr;
+        dvo->i2c_bus = adapter;
         dvo->dev_priv = tfp;
         tfp->quiet = true;
 
         if ((id = tfp410_getid(dvo, TFP410_VID_LO)) != TFP410_VID) {
                 DRM_DEBUG("tfp410 not detected got VID %X: from %s Slave %d.\n",
-                          id, i2cbus->adapter.name, i2cbus->slave_addr);
+                          id, adapter->name, dvo->slave_addr);
                 goto out;
         }
 
         if ((id = tfp410_getid(dvo, TFP410_DID_LO)) != TFP410_DID) {
                 DRM_DEBUG("tfp410 not detected got DID %X: from %s Slave %d.\n",
-                          id, i2cbus->adapter.name, i2cbus->slave_addr);
+                          id, adapter->name, dvo->slave_addr);
                 goto out;
         }
         tfp->quiet = false;
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index f112c769d533..50d1f782768c 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -846,7 +846,7 @@ static int i915_set_status_page(struct drm_device *dev, void *data,
                 return 0;
         }
 
-        printk(KERN_DEBUG "set status page addr 0x%08x\n", (u32)hws->addr);
+        DRM_DEBUG("set status page addr 0x%08x\n", (u32)hws->addr);
 
         dev_priv->status_gfx_addr = hws->addr & (0x1ffff<<12);
 
@@ -885,8 +885,8 @@ static int i915_set_status_page(struct drm_device *dev, void *data,
  * some RAM for the framebuffer at early boot.  This code figures out
  * how much was set aside so we can use it for our own purposes.
  */
-static int i915_probe_agp(struct drm_device *dev, unsigned long *aperture_size,
-                          unsigned long *preallocated_size)
+static int i915_probe_agp(struct drm_device *dev, uint32_t *aperture_size,
+                          uint32_t *preallocated_size)
 {
         struct pci_dev *bridge_dev;
         u16 tmp = 0;
@@ -984,10 +984,11 @@ static int i915_probe_agp(struct drm_device *dev, unsigned long *aperture_size,
         return 0;
 }
 
-static int i915_load_modeset_init(struct drm_device *dev)
+static int i915_load_modeset_init(struct drm_device *dev,
+                                  unsigned long prealloc_size,
+                                  unsigned long agp_size)
 {
         struct drm_i915_private *dev_priv = dev->dev_private;
-        unsigned long agp_size, prealloc_size;
         int fb_bar = IS_I9XX(dev) ? 2 : 0;
         int ret = 0;
 
@@ -1002,10 +1003,6 @@ static int i915_load_modeset_init(struct drm_device *dev)
         if (IS_I965G(dev) || IS_G33(dev))
                 dev_priv->cursor_needs_physical = false;
 
-        ret = i915_probe_agp(dev, &agp_size, &prealloc_size);
-        if (ret)
-                goto out;
-
         /* Basic memrange allocator for stolen space (aka vram) */
         drm_mm_init(&dev_priv->vram, 0, prealloc_size);
 
@@ -1082,6 +1079,44 @@ void i915_master_destroy(struct drm_device *dev, struct drm_master *master)
         master->driver_priv = NULL;
 }
 
+static void i915_get_mem_freq(struct drm_device *dev)
+{
+        drm_i915_private_t *dev_priv = dev->dev_private;
+        u32 tmp;
+
+        if (!IS_IGD(dev))
+                return;
+
+        tmp = I915_READ(CLKCFG);
+
+        switch (tmp & CLKCFG_FSB_MASK) {
+        case CLKCFG_FSB_533:
+                dev_priv->fsb_freq = 533; /* 133*4 */
+                break;
+        case CLKCFG_FSB_800:
+                dev_priv->fsb_freq = 800; /* 200*4 */
+                break;
+        case CLKCFG_FSB_667:
+                dev_priv->fsb_freq =  667; /* 167*4 */
+                break;
+        case CLKCFG_FSB_400:
+                dev_priv->fsb_freq = 400; /* 100*4 */
+                break;
+        }
+
+        switch (tmp & CLKCFG_MEM_MASK) {
+        case CLKCFG_MEM_533:
+                dev_priv->mem_freq = 533;
+                break;
+        case CLKCFG_MEM_667:
+                dev_priv->mem_freq = 667;
+                break;
+        case CLKCFG_MEM_800:
+                dev_priv->mem_freq = 800;
+                break;
+        }
+}
+
 /**
  * i915_driver_load - setup chip and create an initial config
  * @dev: DRM device
@@ -1098,6 +1133,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
         struct drm_i915_private *dev_priv = dev->dev_private;
         resource_size_t base, size;
         int ret = 0, mmio_bar = IS_I9XX(dev) ? 0 : 1;
+        uint32_t agp_size, prealloc_size;
 
         /* i915 has 4 more counters */
         dev->counters += 4;
@@ -1146,9 +1182,29 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
                          "performance may suffer.\n");
         }
 
+        ret = i915_probe_agp(dev, &agp_size, &prealloc_size);
+        if (ret)
+                goto out_iomapfree;
+
+        dev_priv->wq = create_workqueue("i915");
+        if (dev_priv->wq == NULL) {
+                DRM_ERROR("Failed to create our workqueue.\n");
+                ret = -ENOMEM;
+                goto out_iomapfree;
+        }
+
         /* enable GEM by default */
         dev_priv->has_gem = 1;
 
+        if (prealloc_size > agp_size * 3 / 4) {
+                DRM_ERROR("Detected broken video BIOS with %d/%dkB of video "
+                          "memory stolen.\n",
+                          prealloc_size / 1024, agp_size / 1024);
+                DRM_ERROR("Disabling GEM. (try reducing stolen memory or "
+                          "updating the BIOS to fix).\n");
+                dev_priv->has_gem = 0;
+        }
+
         dev->driver->get_vblank_counter = i915_get_vblank_counter;
         dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */
         if (IS_G4X(dev) || IS_IGDNG(dev)) {
@@ -1162,9 +1218,11 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
         if (!I915_NEED_GFX_HWS(dev)) {
                 ret = i915_init_phys_hws(dev);
                 if (ret != 0)
-                        goto out_iomapfree;
+                        goto out_workqueue_free;
         }
 
+        i915_get_mem_freq(dev);
+
         /* On the 945G/GM, the chipset reports the MSI capability on the
          * integrated graphics even though the support isn't actually there
          * according to the published specs.  It doesn't appear to function
@@ -1180,6 +1238,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
                 pci_enable_msi(dev->pdev);
 
         spin_lock_init(&dev_priv->user_irq_lock);
+        spin_lock_init(&dev_priv->error_lock);
         dev_priv->user_irq_refcount = 0;
 
         ret = drm_vblank_init(dev, I915_NUM_PIPE);
@@ -1190,10 +1249,10 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
         }
 
         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
-                ret = i915_load_modeset_init(dev);
+                ret = i915_load_modeset_init(dev, prealloc_size, agp_size);
                 if (ret < 0) {
                         DRM_ERROR("failed to init modeset\n");
-                        goto out_rmmap;
+                        goto out_workqueue_free;
                 }
         }
 
@@ -1204,6 +1263,8 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
 
         return 0;
 
+out_workqueue_free:
+        destroy_workqueue(dev_priv->wq);
 out_iomapfree:
         io_mapping_free(dev_priv->mm.gtt_mapping);
 out_rmmap:
@@ -1217,6 +1278,8 @@ int i915_driver_unload(struct drm_device *dev)
 {
         struct drm_i915_private *dev_priv = dev->dev_private;
 
+        destroy_workqueue(dev_priv->wq);
+
         io_mapping_free(dev_priv->mm.gtt_mapping);
         if (dev_priv->mm.gtt_mtrr >= 0) {
                 mtrr_del(dev_priv->mm.gtt_mtrr, dev->agp->base,
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 98560e1e899a..fc4b68aa2d05 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -35,6 +35,7 @@
 
 #include "drm_pciids.h"
 #include <linux/console.h>
+#include "drm_crtc_helper.h"
 
 static unsigned int i915_modeset = -1;
 module_param_named(modeset, i915_modeset, int, 0400);
@@ -57,8 +58,8 @@ static int i915_suspend(struct drm_device *dev, pm_message_t state)
         struct drm_i915_private *dev_priv = dev->dev_private;
 
         if (!dev || !dev_priv) {
-                printk(KERN_ERR "dev: %p, dev_priv: %p\n", dev, dev_priv);
-                printk(KERN_ERR "DRM not initialized, aborting suspend.\n");
+                DRM_ERROR("dev: %p, dev_priv: %p\n", dev, dev_priv);
+                DRM_ERROR("DRM not initialized, aborting suspend.\n");
                 return -ENODEV;
         }
 
@@ -67,8 +68,6 @@ static int i915_suspend(struct drm_device *dev, pm_message_t state)
 
         pci_save_state(dev->pdev);
 
-        i915_save_state(dev);
-
         /* If KMS is active, we do the leavevt stuff here */
         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
                 if (i915_gem_idle(dev))
@@ -77,6 +76,8 @@ static int i915_suspend(struct drm_device *dev, pm_message_t state)
                 drm_irq_uninstall(dev);
         }
 
+        i915_save_state(dev);
+
         intel_opregion_free(dev, 1);
 
         if (state.event == PM_EVENT_SUSPEND) {
@@ -115,6 +116,10 @@ static int i915_resume(struct drm_device *dev)
 
                 drm_irq_install(dev);
         }
+        if (drm_core_check_feature(dev, DRIVER_MODESET)) {
+                /* Resume the modeset for every activated CRTC */
+                drm_helper_resume_force_mode(dev);
+        }
 
         return ret;
 }
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 7a84f04e8439..7537f57d8a87 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -133,6 +133,22 @@ struct sdvo_device_mapping {
         u8 initialized;
 };
 
+struct drm_i915_error_state {
+        u32 eir;
+        u32 pgtbl_er;
+        u32 pipeastat;
+        u32 pipebstat;
+        u32 ipeir;
+        u32 ipehr;
+        u32 instdone;
+        u32 acthd;
+        u32 instpm;
+        u32 instps;
+        u32 instdone1;
+        u32 seqno;
+        struct timeval time;
+};
+
 typedef struct drm_i915_private {
         struct drm_device *dev;
 
@@ -203,12 +219,20 @@ typedef struct drm_i915_private {
         unsigned int lvds_vbt:1;
         unsigned int int_crt_support:1;
         unsigned int lvds_use_ssc:1;
+        unsigned int edp_support:1;
         int lvds_ssc_freq;
 
         struct drm_i915_fence_reg fence_regs[16]; /* assume 965 */
         int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
         int num_fence_regs; /* 8 on pre-965, 16 otherwise */
 
+        unsigned int fsb_freq, mem_freq;
+
+        spinlock_t error_lock;
+        struct drm_i915_error_state *first_error;
+        struct work_struct error_work;
+        struct workqueue_struct *wq;
+
         /* Register state */
         u8 saveLBB;
         u32 saveDSPACNTR;
@@ -306,6 +330,17 @@ typedef struct drm_i915_private {
         u32 saveCURBPOS;
         u32 saveCURBBASE;
         u32 saveCURSIZE;
+        u32 saveDP_B;
+        u32 saveDP_C;
+        u32 saveDP_D;
+        u32 savePIPEA_GMCH_DATA_M;
+        u32 savePIPEB_GMCH_DATA_M;
+        u32 savePIPEA_GMCH_DATA_N;
+        u32 savePIPEB_GMCH_DATA_N;
+        u32 savePIPEA_DP_LINK_M;
+        u32 savePIPEB_DP_LINK_M;
+        u32 savePIPEA_DP_LINK_N;
+        u32 savePIPEB_DP_LINK_N;
 
         struct {
                 struct drm_mm gtt_space;
@@ -457,9 +492,6 @@ struct drm_i915_gem_object {
          */
         int fence_reg;
 
-        /** Boolean whether this object has a valid gtt offset. */
-        int gtt_bound;
-
         /** How many users have pinned this object in GTT space */
         int pin_count;
 
@@ -644,6 +676,7 @@ void i915_gem_free_object(struct drm_gem_object *obj);
 int i915_gem_object_pin(struct drm_gem_object *obj, uint32_t alignment);
 void i915_gem_object_unpin(struct drm_gem_object *obj);
 int i915_gem_object_unbind(struct drm_gem_object *obj);
+void i915_gem_release_mmap(struct drm_gem_object *obj);
 void i915_gem_lastclose(struct drm_device *dev);
 uint32_t i915_get_gem_seqno(struct drm_device *dev);
 int i915_gem_object_get_fence_reg(struct drm_gem_object *obj);
@@ -857,7 +890,11 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller);
 #define HAS_128_BYTE_Y_TILING(dev) (IS_I9XX(dev) && !(IS_I915G(dev) || \
                                                       IS_I915GM(dev)))
 #define SUPPORTS_INTEGRATED_HDMI(dev)   (IS_G4X(dev) || IS_IGDNG(dev))
+#define SUPPORTS_INTEGRATED_DP(dev)     (IS_G4X(dev) || IS_IGDNG(dev))
+#define SUPPORTS_EDP(dev)               (IS_IGDNG_M(dev))
 #define I915_HAS_HOTPLUG(dev) (IS_I945G(dev) || IS_I945GM(dev) || IS_I965G(dev))
+/* dsparb controlled by hw only */
+#define DSPARB_HWCONTROL(dev) (IS_G4X(dev) || IS_IGDNG(dev))
 
 #define PRIMARY_RINGBUFFER_SIZE         (128*1024)
 
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index fd2b8bdffe3f..140bee142fc2 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1006,7 +1006,7 @@ i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
 
         mutex_lock(&dev->struct_mutex);
 #if WATCH_BUF
-        DRM_INFO("set_domain_ioctl %p(%d), %08x %08x\n",
+        DRM_INFO("set_domain_ioctl %p(%zd), %08x %08x\n",
                  obj, obj->size, read_domains, write_domain);
 #endif
         if (read_domains & I915_GEM_DOMAIN_GTT) {
@@ -1050,7 +1050,7 @@ i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
         }
 
 #if WATCH_BUF
-        DRM_INFO("%s: sw_finish %d (%p %d)\n",
+        DRM_INFO("%s: sw_finish %d (%p %zd)\n",
                  __func__, args->handle, obj, obj->size);
 #endif
         obj_priv = obj->driver_private;
@@ -1252,6 +1252,31 @@ out_free_list:
         return ret;
 }
 
+/**
+ * i915_gem_release_mmap - remove physical page mappings
+ * @obj: obj in question
+ *
+ * Preserve the reservation of the mmaping with the DRM core code, but
+ * relinquish ownership of the pages back to the system.
+ *
+ * It is vital that we remove the page mapping if we have mapped a tiled
+ * object through the GTT and then lose the fence register due to
+ * resource pressure. Similarly if the object has been moved out of the
+ * aperture, than pages mapped into userspace must be revoked. Removing the
+ * mapping will then trigger a page fault on the next user access, allowing
+ * fixup by i915_gem_fault().
+ */
+void
+i915_gem_release_mmap(struct drm_gem_object *obj)
+{
+        struct drm_device *dev = obj->dev;
+        struct drm_i915_gem_object *obj_priv = obj->driver_private;
+
+        if (dev->dev_mapping)
+                unmap_mapping_range(dev->dev_mapping,
+                                    obj_priv->mmap_offset, obj->size, 1);
+}
+
 static void
 i915_gem_free_mmap_offset(struct drm_gem_object *obj)
 {
@@ -1545,7 +1570,7 @@ i915_add_request(struct drm_device *dev, struct drm_file *file_priv,
         }
 
         if (was_empty && !dev_priv->mm.suspended)
-                schedule_delayed_work(&dev_priv->mm.retire_work, HZ);
+                queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work, HZ);
         return seqno;
 }
 
@@ -1694,7 +1719,7 @@ i915_gem_retire_work_handler(struct work_struct *work)
         i915_gem_retire_requests(dev);
         if (!dev_priv->mm.suspended &&
             !list_empty(&dev_priv->mm.request_list))
-                schedule_delayed_work(&dev_priv->mm.retire_work, HZ);
+                queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work, HZ);
         mutex_unlock(&dev->struct_mutex);
 }
 
@@ -1861,7 +1886,6 @@ i915_gem_object_unbind(struct drm_gem_object *obj)
 {
         struct drm_device *dev = obj->dev;
         struct drm_i915_gem_object *obj_priv = obj->driver_private;
-        loff_t offset;
         int ret = 0;
 
 #if WATCH_BUF
@@ -1898,9 +1922,7 @@ i915_gem_object_unbind(struct drm_gem_object *obj)
         BUG_ON(obj_priv->active);
 
         /* blow away mappings if mapped through GTT */
-        offset = ((loff_t) obj->map_list.hash.key) << PAGE_SHIFT;
-        if (dev->dev_mapping)
-                unmap_mapping_range(dev->dev_mapping, offset, obj->size, 1);
+        i915_gem_release_mmap(obj);
 
         if (obj_priv->fence_reg != I915_FENCE_REG_NONE)
                 i915_gem_clear_fence_reg(obj);
@@ -2222,7 +2244,6 @@ try_again:
         /* None available, try to steal one or wait for a user to finish */
         if (i == dev_priv->num_fence_regs) {
                 uint32_t seqno = dev_priv->mm.next_gem_seqno;
-                loff_t offset;
 
                 if (avail == 0)
                         return -ENOSPC;
@@ -2274,10 +2295,7 @@ try_again:
                  * Zap this virtual mapping so we can set up a fence again
                  * for this object next time we need it.
                  */
-                offset = ((loff_t) reg->obj->map_list.hash.key) << PAGE_SHIFT;
-                if (dev->dev_mapping)
-                        unmap_mapping_range(dev->dev_mapping, offset,
-                                            reg->obj->size, 1);
+                i915_gem_release_mmap(reg->obj);
                 old_obj_priv->fence_reg = I915_FENCE_REG_NONE;
         }
 
@@ -2423,7 +2441,7 @@ i915_gem_object_bind_to_gtt(struct drm_gem_object *obj, unsigned alignment)
         }
 
 #if WATCH_BUF
-        DRM_INFO("Binding object of size %d at 0x%08x\n",
+        DRM_INFO("Binding object of size %zd at 0x%08x\n",
                  obj->size, obj_priv->gtt_offset);
 #endif
         ret = i915_gem_object_get_pages(obj);
@@ -4227,6 +4245,7 @@ i915_gem_lastclose(struct drm_device *dev)
 void
 i915_gem_load(struct drm_device *dev)
 {
+        int i;
         drm_i915_private_t *dev_priv = dev->dev_private;
 
         spin_lock_init(&dev_priv->mm.active_list_lock);
@@ -4246,6 +4265,18 @@ i915_gem_load(struct drm_device *dev)
         else
                 dev_priv->num_fence_regs = 8;
 
+        /* Initialize fence registers to zero */
+        if (IS_I965G(dev)) {
+                for (i = 0; i < 16; i++)
+                        I915_WRITE64(FENCE_REG_965_0 + (i * 8), 0);
+        } else {
+                for (i = 0; i < 8; i++)
+                        I915_WRITE(FENCE_REG_830_0 + (i * 4), 0);
+                if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))
+                        for (i = 0; i < 8; i++)
+                                I915_WRITE(FENCE_REG_945_8 + (i * 4), 0);
+        }
+
         i915_gem_detect_bit_6_swizzle(dev);
 }
 
diff --git a/drivers/gpu/drm/i915/i915_gem_debug.c b/drivers/gpu/drm/i915/i915_gem_debug.c
index 8d0b943e2c5a..e602614bd3f8 100644
--- a/drivers/gpu/drm/i915/i915_gem_debug.c
+++ b/drivers/gpu/drm/i915/i915_gem_debug.c
@@ -87,7 +87,7 @@ i915_gem_dump_object(struct drm_gem_object *obj, int len,
                         chunk_len = page_len - chunk;
                         if (chunk_len > 128)
                                 chunk_len = 128;
-                        i915_gem_dump_page(obj_priv->page_list[page],
+                        i915_gem_dump_page(obj_priv->pages[page],
                                            chunk, chunk + chunk_len,
                                            obj_priv->gtt_offset +
                                            page * PAGE_SIZE,
@@ -143,7 +143,7 @@ i915_gem_object_check_coherency(struct drm_gem_object *obj, int handle)
         uint32_t *backing_map = NULL;
         int bad_count = 0;
 
-        DRM_INFO("%s: checking coherency of object %p@0x%08x (%d, %dkb):\n",
+        DRM_INFO("%s: checking coherency of object %p@0x%08x (%d, %zdkb):\n",
                  __func__, obj, obj_priv->gtt_offset, handle,
                  obj->size / 1024);
 
@@ -157,7 +157,7 @@ i915_gem_object_check_coherency(struct drm_gem_object *obj, int handle)
         for (page = 0; page < obj->size / PAGE_SIZE; page++) {
                 int i;
 
-                backing_map = kmap_atomic(obj_priv->page_list[page], KM_USER0);
+                backing_map = kmap_atomic(obj_priv->pages[page], KM_USER0);
 
                 if (backing_map == NULL) {
                         DRM_ERROR("failed to map backing page\n");
diff --git a/drivers/gpu/drm/i915/i915_gem_debugfs.c b/drivers/gpu/drm/i915/i915_gem_debugfs.c
index 28146e405e87..cb3b97405fbf 100644
--- a/drivers/gpu/drm/i915/i915_gem_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_gem_debugfs.c
@@ -75,11 +75,10 @@ static int i915_gem_object_list_info(struct seq_file *m, void *data)
         case ACTIVE_LIST:
                 seq_printf(m, "Active:\n");
                 lock = &dev_priv->mm.active_list_lock;
-                spin_lock(lock);
                 head = &dev_priv->mm.active_list;
                 break;
         case INACTIVE_LIST:
-                seq_printf(m, "Inctive:\n");
+                seq_printf(m, "Inactive:\n");
                 head = &dev_priv->mm.inactive_list;
                 break;
         case FLUSHING_LIST:
@@ -91,6 +90,8 @@ static int i915_gem_object_list_info(struct seq_file *m, void *data)
                 return 0;
         }
 
+        if (lock)
+                spin_lock(lock);
         list_for_each_entry(obj_priv, head, list)
         {
                 struct drm_gem_object *obj = obj_priv->obj;
@@ -104,7 +105,10 @@ static int i915_gem_object_list_info(struct seq_file *m, void *data)
                 if (obj->name)
                         seq_printf(m, " (name: %d)", obj->name);
                 if (obj_priv->fence_reg != I915_FENCE_REG_NONE)
-                        seq_printf(m, " (fence: %d)\n", obj_priv->fence_reg);
+                        seq_printf(m, " (fence: %d)", obj_priv->fence_reg);
+                if (obj_priv->gtt_space != NULL)
+                        seq_printf(m, " (gtt_offset: %08x)", obj_priv->gtt_offset);
+
                 seq_printf(m, "\n");
         }
 
@@ -323,6 +327,41 @@ static int i915_ringbuffer_info(struct seq_file *m, void *data)
         return 0;
 }
 
+static int i915_error_state(struct seq_file *m, void *unused)
+{
+        struct drm_info_node *node = (struct drm_info_node *) m->private;
+        struct drm_device *dev = node->minor->dev;
+        drm_i915_private_t *dev_priv = dev->dev_private;
+        struct drm_i915_error_state *error;
+        unsigned long flags;
+
+        spin_lock_irqsave(&dev_priv->error_lock, flags);
+        if (!dev_priv->first_error) {
+                seq_printf(m, "no error state collected\n");
+                goto out;
+        }
+
+        error = dev_priv->first_error;
+
+        seq_printf(m, "Time: %ld s %ld us\n", error->time.tv_sec,
+                   error->time.tv_usec);
+        seq_printf(m, "EIR: 0x%08x\n", error->eir);
+        seq_printf(m, "  PGTBL_ER: 0x%08x\n", error->pgtbl_er);
+        seq_printf(m, "  INSTPM: 0x%08x\n", error->instpm);
+        seq_printf(m, "  IPEIR: 0x%08x\n", error->ipeir);
+        seq_printf(m, "  IPEHR: 0x%08x\n", error->ipehr);
+        seq_printf(m, "  INSTDONE: 0x%08x\n", error->instdone);
+        seq_printf(m, "  ACTHD: 0x%08x\n", error->acthd);
+        if (IS_I965G(dev)) {
+                seq_printf(m, "  INSTPS: 0x%08x\n", error->instps);
+                seq_printf(m, "  INSTDONE1: 0x%08x\n", error->instdone1);
+        }
+
+out:
+        spin_unlock_irqrestore(&dev_priv->error_lock, flags);
+
+        return 0;
+}
 
 static struct drm_info_list i915_gem_debugfs_list[] = {
         {"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST},
@@ -336,6 +375,7 @@ static struct drm_info_list i915_gem_debugfs_list[] = {
         {"i915_ringbuffer_data", i915_ringbuffer_data, 0},
         {"i915_ringbuffer_info", i915_ringbuffer_info, 0},
         {"i915_batchbuffers", i915_batchbuffer_info, 0},
+        {"i915_error_state", i915_error_state, 0},
 };
 #define I915_GEM_DEBUGFS_ENTRIES ARRAY_SIZE(i915_gem_debugfs_list)
 
diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c
index 5c1ceec49f5b..a2d527b22ec4 100644
--- a/drivers/gpu/drm/i915/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/i915_gem_tiling.c
@@ -114,11 +114,13 @@ intel_alloc_mchbar_resource(struct drm_device *dev)
         mchbar_addr = ((u64)temp_hi << 32) | temp_lo;
 
         /* If ACPI doesn't have it, assume we need to allocate it ourselves */
+#ifdef CONFIG_PNP
         if (mchbar_addr &&
             pnp_range_reserved(mchbar_addr, mchbar_addr + MCHBAR_SIZE)) {
                 ret = 0;
                 goto out_put;
         }
+#endif
 
         /* Get some space for it */
         ret = pci_bus_alloc_resource(bridge_dev->bus, &dev_priv->mch_res,
@@ -519,6 +521,12 @@ i915_gem_set_tiling(struct drm_device *dev, void *data,
                         goto err;
                 }
 
+                /* If we've changed tiling, GTT-mappings of the object
+                 * need to re-fault to ensure that the correct fence register
+                 * setup is in place.
+                 */
+                i915_gem_release_mmap(obj);
+
                 obj_priv->tiling_mode = args->tiling_mode;
                 obj_priv->stride = args->stride;
         }
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index b86b7b7130c6..83aee80e77a6 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -26,6 +26,7 @@
  *
  */
 
+#include <linux/sysrq.h>
 #include "drmP.h"
 #include "drm.h"
 #include "i915_drm.h"
@@ -41,9 +42,10 @@
  * we leave them always unmasked in IMR and then control enabling them through
  * PIPESTAT alone.
  */
-#define I915_INTERRUPT_ENABLE_FIX (I915_ASLE_INTERRUPT | \
-                                   I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |  \
-                                   I915_DISPLAY_PIPE_B_EVENT_INTERRUPT)
+#define I915_INTERRUPT_ENABLE_FIX (I915_ASLE_INTERRUPT |                 \
+                                   I915_DISPLAY_PIPE_A_EVENT_INTERRUPT | \
+                                   I915_DISPLAY_PIPE_B_EVENT_INTERRUPT | \
+                                   I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT)
 
 /** Interrupts that we mask and unmask at runtime. */
 #define I915_INTERRUPT_ENABLE_VAR (I915_USER_INTERRUPT)
@@ -232,7 +234,17 @@ static void i915_hotplug_work_func(struct work_struct *work)
         drm_i915_private_t *dev_priv = container_of(work, drm_i915_private_t,
                                                     hotplug_work);
         struct drm_device *dev = dev_priv->dev;
-
+        struct drm_mode_config *mode_config = &dev->mode_config;
+        struct drm_connector *connector;
+
+        if (mode_config->num_connector) {
+                list_for_each_entry(connector, &mode_config->connector_list, head) {
+                        struct intel_output *intel_output = to_intel_output(connector);
+        
+                        if (intel_output->hot_plug)
+                                (*intel_output->hot_plug) (intel_output);
+                }
+        }
         /* Just fire off a uevent and let userspace tell us what to do */
         drm_sysfs_hotplug_event(dev);
 }
@@ -278,6 +290,201 @@ irqreturn_t igdng_irq_handler(struct drm_device *dev)
         return ret;
 }
 
+/**
+ * i915_error_work_func - do process context error handling work
+ * @work: work struct
+ *
+ * Fire an error uevent so userspace can see that a hang or error
+ * was detected.
+ */
+static void i915_error_work_func(struct work_struct *work)
+{
+        drm_i915_private_t *dev_priv = container_of(work, drm_i915_private_t,
+                                                    error_work);
+        struct drm_device *dev = dev_priv->dev;
+        char *event_string = "ERROR=1";
+        char *envp[] = { event_string, NULL };
+
+        DRM_DEBUG("generating error event\n");
+
+        kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, envp);
+}
+
+/**
+ * i915_capture_error_state - capture an error record for later analysis
+ * @dev: drm device
+ *
+ * Should be called when an error is detected (either a hang or an error
+ * interrupt) to capture error state from the time of the error.  Fills
+ * out a structure which becomes available in debugfs for user level tools
+ * to pick up.
+ */
+static void i915_capture_error_state(struct drm_device *dev)
+{
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        struct drm_i915_error_state *error;
+        unsigned long flags;
+
+        spin_lock_irqsave(&dev_priv->error_lock, flags);
+        if (dev_priv->first_error)
+                goto out;
+
+        error = kmalloc(sizeof(*error), GFP_ATOMIC);
+        if (!error) {
+                DRM_DEBUG("out ot memory, not capturing error state\n");
+                goto out;
+        }
+
+        error->eir = I915_READ(EIR);
+        error->pgtbl_er = I915_READ(PGTBL_ER);
+        error->pipeastat = I915_READ(PIPEASTAT);
+        error->pipebstat = I915_READ(PIPEBSTAT);
+        error->instpm = I915_READ(INSTPM);
+        if (!IS_I965G(dev)) {
+                error->ipeir = I915_READ(IPEIR);
+                error->ipehr = I915_READ(IPEHR);
+                error->instdone = I915_READ(INSTDONE);
+                error->acthd = I915_READ(ACTHD);
+        } else {
+                error->ipeir = I915_READ(IPEIR_I965);
+                error->ipehr = I915_READ(IPEHR_I965);
+                error->instdone = I915_READ(INSTDONE_I965);
+                error->instps = I915_READ(INSTPS);
+                error->instdone1 = I915_READ(INSTDONE1);
+                error->acthd = I915_READ(ACTHD_I965);
+        }
+
+        do_gettimeofday(&error->time);
+
+        dev_priv->first_error = error;
+
+out:
+        spin_unlock_irqrestore(&dev_priv->error_lock, flags);
+}
+
+/**
+ * i915_handle_error - handle an error interrupt
+ * @dev: drm device
+ *
+ * Do some basic checking of regsiter state at error interrupt time and
+ * dump it to the syslog.  Also call i915_capture_error_state() to make
+ * sure we get a record and make it available in debugfs.  Fire a uevent
+ * so userspace knows something bad happened (should trigger collection
+ * of a ring dump etc.).
+ */
+static void i915_handle_error(struct drm_device *dev)
+{
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        u32 eir = I915_READ(EIR);
+        u32 pipea_stats = I915_READ(PIPEASTAT);
+        u32 pipeb_stats = I915_READ(PIPEBSTAT);
+
+        i915_capture_error_state(dev);
+
+        printk(KERN_ERR "render error detected, EIR: 0x%08x\n",
+               eir);
+
+        if (IS_G4X(dev)) {
+                if (eir & (GM45_ERROR_MEM_PRIV | GM45_ERROR_CP_PRIV)) {
+                        u32 ipeir = I915_READ(IPEIR_I965);
+
+                        printk(KERN_ERR "  IPEIR: 0x%08x\n",
+                               I915_READ(IPEIR_I965));
+                        printk(KERN_ERR "  IPEHR: 0x%08x\n",
+                               I915_READ(IPEHR_I965));
+                        printk(KERN_ERR "  INSTDONE: 0x%08x\n",
+                               I915_READ(INSTDONE_I965));
+                        printk(KERN_ERR "  INSTPS: 0x%08x\n",
+                               I915_READ(INSTPS));
+                        printk(KERN_ERR "  INSTDONE1: 0x%08x\n",
+                               I915_READ(INSTDONE1));
+                        printk(KERN_ERR "  ACTHD: 0x%08x\n",
+                               I915_READ(ACTHD_I965));
+                        I915_WRITE(IPEIR_I965, ipeir);
+                        (void)I915_READ(IPEIR_I965);
+                }
+                if (eir & GM45_ERROR_PAGE_TABLE) {
+                        u32 pgtbl_err = I915_READ(PGTBL_ER);
+                        printk(KERN_ERR "page table error\n");
+                        printk(KERN_ERR "  PGTBL_ER: 0x%08x\n",
+                               pgtbl_err);
+                        I915_WRITE(PGTBL_ER, pgtbl_err);
+                        (void)I915_READ(PGTBL_ER);
+                }
+        }
+
+        if (IS_I9XX(dev)) {
+                if (eir & I915_ERROR_PAGE_TABLE) {
+                        u32 pgtbl_err = I915_READ(PGTBL_ER);
+                        printk(KERN_ERR "page table error\n");
+                        printk(KERN_ERR "  PGTBL_ER: 0x%08x\n",
+                               pgtbl_err);
+                        I915_WRITE(PGTBL_ER, pgtbl_err);
+                        (void)I915_READ(PGTBL_ER);
+                }
+        }
+
+        if (eir & I915_ERROR_MEMORY_REFRESH) {
+                printk(KERN_ERR "memory refresh error\n");
+                printk(KERN_ERR "PIPEASTAT: 0x%08x\n",
+                       pipea_stats);
+                printk(KERN_ERR "PIPEBSTAT: 0x%08x\n",
+                       pipeb_stats);
+                /* pipestat has already been acked */
+        }
+        if (eir & I915_ERROR_INSTRUCTION) {
+                printk(KERN_ERR "instruction error\n");
+                printk(KERN_ERR "  INSTPM: 0x%08x\n",
+                       I915_READ(INSTPM));
+                if (!IS_I965G(dev)) {
+                        u32 ipeir = I915_READ(IPEIR);
+
+                        printk(KERN_ERR "  IPEIR: 0x%08x\n",
+                               I915_READ(IPEIR));
+                        printk(KERN_ERR "  IPEHR: 0x%08x\n",
+                               I915_READ(IPEHR));
+                        printk(KERN_ERR "  INSTDONE: 0x%08x\n",
+                               I915_READ(INSTDONE));
+                        printk(KERN_ERR "  ACTHD: 0x%08x\n",
+                               I915_READ(ACTHD));
+                        I915_WRITE(IPEIR, ipeir);
+                        (void)I915_READ(IPEIR);
+                } else {
+                        u32 ipeir = I915_READ(IPEIR_I965);
+
+                        printk(KERN_ERR "  IPEIR: 0x%08x\n",
+                               I915_READ(IPEIR_I965));
+                        printk(KERN_ERR "  IPEHR: 0x%08x\n",
+                               I915_READ(IPEHR_I965));
+                        printk(KERN_ERR "  INSTDONE: 0x%08x\n",
+                               I915_READ(INSTDONE_I965));
+                        printk(KERN_ERR "  INSTPS: 0x%08x\n",
+                               I915_READ(INSTPS));
+                        printk(KERN_ERR "  INSTDONE1: 0x%08x\n",
+                               I915_READ(INSTDONE1));
+                        printk(KERN_ERR "  ACTHD: 0x%08x\n",
+                               I915_READ(ACTHD_I965));
+                        I915_WRITE(IPEIR_I965, ipeir);
+                        (void)I915_READ(IPEIR_I965);
+                }
+        }
+
+        I915_WRITE(EIR, eir);
+        (void)I915_READ(EIR);
+        eir = I915_READ(EIR);
+        if (eir) {
+                /*
+                 * some errors might have become stuck,
+                 * mask them.
+                 */
+                DRM_ERROR("EIR stuck: 0x%08x, masking\n", eir);
+                I915_WRITE(EMR, I915_READ(EMR) | eir);
+                I915_WRITE(IIR, I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT);
+        }
+
+        queue_work(dev_priv->wq, &dev_priv->error_work);
+}
+
 irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
 {
         struct drm_device *dev = (struct drm_device *) arg;
@@ -319,15 +526,22 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
                 pipea_stats = I915_READ(PIPEASTAT);
                 pipeb_stats = I915_READ(PIPEBSTAT);
 
+                if (iir & I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT)
+                        i915_handle_error(dev);
+
                 /*
                  * Clear the PIPE(A|B)STAT regs before the IIR
                  */
                 if (pipea_stats & 0x8000ffff) {
+                        if (pipea_stats &  PIPE_FIFO_UNDERRUN_STATUS)
+                                DRM_DEBUG("pipe a underrun\n");
                         I915_WRITE(PIPEASTAT, pipea_stats);
                         irq_received = 1;
                 }
 
                 if (pipeb_stats & 0x8000ffff) {
+                        if (pipeb_stats &  PIPE_FIFO_UNDERRUN_STATUS)
+                                DRM_DEBUG("pipe b underrun\n");
                         I915_WRITE(PIPEBSTAT, pipeb_stats);
                         irq_received = 1;
                 }
@@ -346,7 +560,8 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
                         DRM_DEBUG("hotplug event received, stat 0x%08x\n",
                                   hotplug_status);
                         if (hotplug_status & dev_priv->hotplug_supported_mask)
-                                schedule_work(&dev_priv->hotplug_work);
+                                queue_work(dev_priv->wq,
+                                           &dev_priv->hotplug_work);
 
                         I915_WRITE(PORT_HOTPLUG_STAT, hotplug_status);
                         I915_READ(PORT_HOTPLUG_STAT);
@@ -699,6 +914,7 @@ void i915_driver_irq_preinstall(struct drm_device * dev)
         atomic_set(&dev_priv->irq_received, 0);
 
         INIT_WORK(&dev_priv->hotplug_work, i915_hotplug_work_func);
+        INIT_WORK(&dev_priv->error_work, i915_error_work_func);
 
         if (IS_IGDNG(dev)) {
                 igdng_irq_preinstall(dev);
@@ -722,6 +938,7 @@ int i915_driver_irq_postinstall(struct drm_device *dev)
 {
         drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
         u32 enable_mask = I915_INTERRUPT_ENABLE_FIX | I915_INTERRUPT_ENABLE_VAR;
+        u32 error_mask;
 
         DRM_INIT_WAITQUEUE(&dev_priv->irq_queue);
 
@@ -758,6 +975,21 @@ int i915_driver_irq_postinstall(struct drm_device *dev)
                 i915_enable_irq(dev_priv, I915_DISPLAY_PORT_INTERRUPT);
         }
 
+        /*
+         * Enable some error detection, note the instruction error mask
+         * bit is reserved, so we leave it masked.
+         */
+        if (IS_G4X(dev)) {
+                error_mask = ~(GM45_ERROR_PAGE_TABLE |
+                               GM45_ERROR_MEM_PRIV |
+                               GM45_ERROR_CP_PRIV |
+                               I915_ERROR_MEMORY_REFRESH);
+        } else {
+                error_mask = ~(I915_ERROR_PAGE_TABLE |
+                               I915_ERROR_MEMORY_REFRESH);
+        }
+        I915_WRITE(EMR, error_mask);
+
         /* Disable pipe interrupt enables, clear pending pipe status */
         I915_WRITE(PIPEASTAT, I915_READ(PIPEASTAT) & 0x8000ffff);
         I915_WRITE(PIPEBSTAT, I915_READ(PIPEBSTAT) & 0x8000ffff);
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index f6237a0b1133..2955083aa471 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -206,6 +206,7 @@
 /*
  * Instruction and interrupt control regs
  */
+#define PGTBL_ER        0x02024
 #define PRB0_TAIL       0x02030
 #define PRB0_HEAD       0x02034
 #define PRB0_START      0x02038
@@ -226,11 +227,18 @@
 #define PRB1_HEAD       0x02044 /* 915+ only */
 #define PRB1_START      0x02048 /* 915+ only */
 #define PRB1_CTL        0x0204c /* 915+ only */
+#define IPEIR_I965      0x02064
+#define IPEHR_I965      0x02068
+#define INSTDONE_I965   0x0206c
+#define INSTPS          0x02070 /* 965+ only */
+#define INSTDONE1       0x0207c /* 965+ only */
 #define ACTHD_I965      0x02074
 #define HWS_PGA         0x02080
 #define HWS_ADDRESS_MASK        0xfffff000
 #define HWS_START_ADDRESS_SHIFT 4
 #define IPEIR           0x02088
+#define IPEHR           0x0208c
+#define INSTDONE        0x02090
 #define NOPID           0x02094
 #define HWSTAM          0x02098
 #define SCPD0           0x0209c /* 915+ only */
@@ -258,10 +266,22 @@
 #define EIR             0x020b0
 #define EMR             0x020b4
 #define ESR             0x020b8
+#define   GM45_ERROR_PAGE_TABLE                         (1<<5)
+#define   GM45_ERROR_MEM_PRIV                           (1<<4)
+#define   I915_ERROR_PAGE_TABLE                         (1<<4)
+#define   GM45_ERROR_CP_PRIV                            (1<<3)
+#define   I915_ERROR_MEMORY_REFRESH                     (1<<1)
+#define   I915_ERROR_INSTRUCTION                        (1<<0)
 #define INSTPM          0x020c0
 #define ACTHD           0x020c8
 #define FW_BLC          0x020d8
+#define FW_BLC2         0x020dc
 #define FW_BLC_SELF     0x020e0 /* 915+ only */
+#define   FW_BLC_SELF_EN (1<<15)
+#define MM_BURST_LENGTH     0x00700000
+#define MM_FIFO_WATERMARK   0x0001F000
+#define LM_BURST_LENGTH     0x00000700
+#define LM_FIFO_WATERMARK   0x0000001F
 #define MI_ARB_STATE    0x020e4 /* 915+ only */
 #define CACHE_MODE_0    0x02120 /* 915+ only */
 #define   CM0_MASK_SHIFT          16
@@ -569,6 +589,23 @@
 #define C0DRB3                  0x10206
 #define C1DRB3                  0x10606
 
+/* Clocking configuration register */
+#define CLKCFG                  0x10c00
+#define CLKCFG_FSB_400                                  (5 << 0)        /* hrawclk 100 */
+#define CLKCFG_FSB_533                                  (1 << 0)        /* hrawclk 133 */
+#define CLKCFG_FSB_667                                  (3 << 0)        /* hrawclk 166 */
+#define CLKCFG_FSB_800                                  (2 << 0)        /* hrawclk 200 */
+#define CLKCFG_FSB_1067                                 (6 << 0)        /* hrawclk 266 */
+#define CLKCFG_FSB_1333                                 (7 << 0)        /* hrawclk 333 */
+/* Note, below two are guess */
+#define CLKCFG_FSB_1600                                 (4 << 0)        /* hrawclk 400 */
+#define CLKCFG_FSB_1600_ALT                             (0 << 0)        /* hrawclk 400 */
+#define CLKCFG_FSB_MASK                                 (7 << 0)
+#define CLKCFG_MEM_533                                  (1 << 4)
+#define CLKCFG_MEM_667                                  (2 << 4)
+#define CLKCFG_MEM_800                                  (3 << 4)
+#define CLKCFG_MEM_MASK                                 (7 << 4)
+
 /** GM965 GM45 render standby register */
 #define MCHBAR_RENDER_STANDBY   0x111B8
 
@@ -834,9 +871,25 @@
 #define   HORIZ_INTERP_MASK     (3 << 6)
 #define   HORIZ_AUTO_SCALE      (1 << 5)
 #define   PANEL_8TO6_DITHER_ENABLE (1 << 3)
+#define   PFIT_FILTER_FUZZY     (0 << 24)
+#define   PFIT_SCALING_AUTO     (0 << 26)
+#define   PFIT_SCALING_PROGRAMMED (1 << 26)
+#define   PFIT_SCALING_PILLAR   (2 << 26)
+#define   PFIT_SCALING_LETTER   (3 << 26)
 #define PFIT_PGM_RATIOS 0x61234
 #define   PFIT_VERT_SCALE_MASK                  0xfff00000
 #define   PFIT_HORIZ_SCALE_MASK                 0x0000fff0
+/* Pre-965 */
+#define         PFIT_VERT_SCALE_SHIFT           20
+#define         PFIT_VERT_SCALE_MASK            0xfff00000
+#define         PFIT_HORIZ_SCALE_SHIFT          4
+#define         PFIT_HORIZ_SCALE_MASK           0x0000fff0
+/* 965+ */
+#define         PFIT_VERT_SCALE_SHIFT_965       16
+#define         PFIT_VERT_SCALE_MASK_965        0x1fff0000
+#define         PFIT_HORIZ_SCALE_SHIFT_965      0
+#define         PFIT_HORIZ_SCALE_MASK_965       0x00001fff
+
 #define PFIT_AUTO_RATIOS 0x61238
 
 /* Backlight control */
@@ -1342,6 +1395,7 @@
 #define TV_V_CHROMA_42          0x684a8
 
 /* Display Port */
+#define DP_A                            0x64000 /* eDP */
 #define DP_B                            0x64100
 #define DP_C                            0x64200
 #define DP_D                            0x64300
@@ -1384,13 +1438,22 @@
 /* Mystic DPCD version 1.1 special mode */
 #define   DP_ENHANCED_FRAMING           (1 << 18)
 
+/* eDP */
+#define   DP_PLL_FREQ_270MHZ            (0 << 16)
+#define   DP_PLL_FREQ_160MHZ            (1 << 16)
+#define   DP_PLL_FREQ_MASK              (3 << 16)
+
 /** locked once port is enabled */
 #define   DP_PORT_REVERSAL              (1 << 15)
 
+/* eDP */
+#define   DP_PLL_ENABLE                 (1 << 14)
+
 /** sends the clock on lane 15 of the PEG for debug */
 #define   DP_CLOCK_OUTPUT_ENABLE        (1 << 13)
 
 #define   DP_SCRAMBLING_DISABLE         (1 << 12)
+#define   DP_SCRAMBLING_DISABLE_IGDNG   (1 << 7)
 
 /** limit RGB values to avoid confusing TVs */
 #define   DP_COLOR_RANGE_16_235         (1 << 8)
@@ -1410,6 +1473,13 @@
  * is 20 bytes in each direction, hence the 5 fixed
  * data registers
  */
+#define DPA_AUX_CH_CTL                  0x64010
+#define DPA_AUX_CH_DATA1                0x64014
+#define DPA_AUX_CH_DATA2                0x64018
+#define DPA_AUX_CH_DATA3                0x6401c
+#define DPA_AUX_CH_DATA4                0x64020
+#define DPA_AUX_CH_DATA5                0x64024
+
 #define DPB_AUX_CH_CTL                  0x64110
 #define DPB_AUX_CH_DATA1                0x64114
 #define DPB_AUX_CH_DATA2                0x64118
@@ -1552,6 +1622,34 @@
 #define   DSPARB_CSTART_SHIFT   7
 #define   DSPARB_BSTART_MASK    (0x7f)
 #define   DSPARB_BSTART_SHIFT   0
+#define   DSPARB_BEND_SHIFT     9 /* on 855 */
+#define   DSPARB_AEND_SHIFT     0
+
+#define DSPFW1                  0x70034
+#define DSPFW2                  0x70038
+#define DSPFW3                  0x7003c
+#define   IGD_SELF_REFRESH_EN   (1<<30)
+
+/* FIFO watermark sizes etc */
+#define I915_FIFO_LINE_SIZE     64
+#define I830_FIFO_LINE_SIZE     32
+#define I945_FIFO_SIZE          127 /* 945 & 965 */
+#define I915_FIFO_SIZE          95
+#define I855GM_FIFO_SIZE        127 /* In cachelines */
+#define I830_FIFO_SIZE          95
+#define I915_MAX_WM             0x3f
+
+#define IGD_DISPLAY_FIFO        512 /* in 64byte unit */
+#define IGD_FIFO_LINE_SIZE      64
+#define IGD_MAX_WM              0x1ff
+#define IGD_DFT_WM              0x3f
+#define IGD_DFT_HPLLOFF_WM      0
+#define IGD_GUARD_WM            10
+#define IGD_CURSOR_FIFO         64
+#define IGD_CURSOR_MAX_WM       0x3f
+#define IGD_CURSOR_DFT_WM       0
+#define IGD_CURSOR_GUARD_WM     5
+
 /*
  * The two pipe frame counter registers are not synchronized, so
  * reading a stable value is somewhat tricky. The following code
@@ -1767,6 +1865,8 @@
 #define PFA_CTL_1               0x68080
 #define PFB_CTL_1               0x68880
 #define  PF_ENABLE              (1<<31)
+#define PFA_WIN_SZ              0x68074
+#define PFB_WIN_SZ              0x68874
 
 /* legacy palette */
 #define LGC_PALETTE_A           0x4a000
@@ -2127,4 +2227,28 @@
 #define PCH_PP_OFF_DELAYS       0xc720c
 #define PCH_PP_DIVISOR          0xc7210
 
+#define PCH_DP_B                0xe4100
+#define PCH_DPB_AUX_CH_CTL      0xe4110
+#define PCH_DPB_AUX_CH_DATA1    0xe4114
+#define PCH_DPB_AUX_CH_DATA2    0xe4118
+#define PCH_DPB_AUX_CH_DATA3    0xe411c
+#define PCH_DPB_AUX_CH_DATA4    0xe4120
+#define PCH_DPB_AUX_CH_DATA5    0xe4124
+
+#define PCH_DP_C                0xe4200
+#define PCH_DPC_AUX_CH_CTL      0xe4210
+#define PCH_DPC_AUX_CH_DATA1    0xe4214
+#define PCH_DPC_AUX_CH_DATA2    0xe4218
+#define PCH_DPC_AUX_CH_DATA3    0xe421c
+#define PCH_DPC_AUX_CH_DATA4    0xe4220
+#define PCH_DPC_AUX_CH_DATA5    0xe4224
+
+#define PCH_DP_D                0xe4300
+#define PCH_DPD_AUX_CH_CTL      0xe4310
+#define PCH_DPD_AUX_CH_DATA1    0xe4314
+#define PCH_DPD_AUX_CH_DATA2    0xe4318
+#define PCH_DPD_AUX_CH_DATA3    0xe431c
+#define PCH_DPD_AUX_CH_DATA4    0xe4320
+#define PCH_DPD_AUX_CH_DATA5    0xe4324
+
 #endif /* _I915_REG_H_ */
diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c
index a98e2831ed31..1d04e1904ac6 100644
--- a/drivers/gpu/drm/i915/i915_suspend.c
+++ b/drivers/gpu/drm/i915/i915_suspend.c
@@ -222,23 +222,12 @@ static void i915_restore_vga(struct drm_device *dev)
         I915_WRITE8(VGA_DACMASK, dev_priv->saveDACMASK);
 }
 
-int i915_save_state(struct drm_device *dev)
+static void i915_save_modeset_reg(struct drm_device *dev)
 {
         struct drm_i915_private *dev_priv = dev->dev_private;
-        int i;
-
-        pci_read_config_byte(dev->pdev, LBB, &dev_priv->saveLBB);
-
-        /* Render Standby */
-        if (IS_I965G(dev) && IS_MOBILE(dev))
-                dev_priv->saveRENDERSTANDBY = I915_READ(MCHBAR_RENDER_STANDBY);
-
-        /* Hardware status page */
-        dev_priv->saveHWS = I915_READ(HWS_PGA);
-
-        /* Display arbitration control */
-        dev_priv->saveDSPARB = I915_READ(DSPARB);
 
+        if (drm_core_check_feature(dev, DRIVER_MODESET))
+                return;
         /* Pipe & plane A info */
         dev_priv->savePIPEACONF = I915_READ(PIPEACONF);
         dev_priv->savePIPEASRC = I915_READ(PIPEASRC);
@@ -294,7 +283,122 @@ int i915_save_state(struct drm_device *dev)
         }
         i915_save_palette(dev, PIPE_B);
         dev_priv->savePIPEBSTAT = I915_READ(PIPEBSTAT);
+        return;
+}
+static void i915_restore_modeset_reg(struct drm_device *dev)
+{
+        struct drm_i915_private *dev_priv = dev->dev_private;
+
+        if (drm_core_check_feature(dev, DRIVER_MODESET))
+                return;
+
+        /* Pipe & plane A info */
+        /* Prime the clock */
+        if (dev_priv->saveDPLL_A & DPLL_VCO_ENABLE) {
+                I915_WRITE(DPLL_A, dev_priv->saveDPLL_A &
+                           ~DPLL_VCO_ENABLE);
+                DRM_UDELAY(150);
+        }
+        I915_WRITE(FPA0, dev_priv->saveFPA0);
+        I915_WRITE(FPA1, dev_priv->saveFPA1);
+        /* Actually enable it */
+        I915_WRITE(DPLL_A, dev_priv->saveDPLL_A);
+        DRM_UDELAY(150);
+        if (IS_I965G(dev))
+                I915_WRITE(DPLL_A_MD, dev_priv->saveDPLL_A_MD);
+        DRM_UDELAY(150);
+
+        /* Restore mode */
+        I915_WRITE(HTOTAL_A, dev_priv->saveHTOTAL_A);
+        I915_WRITE(HBLANK_A, dev_priv->saveHBLANK_A);
+        I915_WRITE(HSYNC_A, dev_priv->saveHSYNC_A);
+        I915_WRITE(VTOTAL_A, dev_priv->saveVTOTAL_A);
+        I915_WRITE(VBLANK_A, dev_priv->saveVBLANK_A);
+        I915_WRITE(VSYNC_A, dev_priv->saveVSYNC_A);
+        I915_WRITE(BCLRPAT_A, dev_priv->saveBCLRPAT_A);
+
+        /* Restore plane info */
+        I915_WRITE(DSPASIZE, dev_priv->saveDSPASIZE);
+        I915_WRITE(DSPAPOS, dev_priv->saveDSPAPOS);
+        I915_WRITE(PIPEASRC, dev_priv->savePIPEASRC);
+        I915_WRITE(DSPAADDR, dev_priv->saveDSPAADDR);
+        I915_WRITE(DSPASTRIDE, dev_priv->saveDSPASTRIDE);
+        if (IS_I965G(dev)) {
+                I915_WRITE(DSPASURF, dev_priv->saveDSPASURF);
+                I915_WRITE(DSPATILEOFF, dev_priv->saveDSPATILEOFF);
+        }
+
+        I915_WRITE(PIPEACONF, dev_priv->savePIPEACONF);
+
+        i915_restore_palette(dev, PIPE_A);
+        /* Enable the plane */
+        I915_WRITE(DSPACNTR, dev_priv->saveDSPACNTR);
+        I915_WRITE(DSPAADDR, I915_READ(DSPAADDR));
+
+        /* Pipe & plane B info */
+        if (dev_priv->saveDPLL_B & DPLL_VCO_ENABLE) {
+                I915_WRITE(DPLL_B, dev_priv->saveDPLL_B &
+                           ~DPLL_VCO_ENABLE);
+                DRM_UDELAY(150);
+        }
+        I915_WRITE(FPB0, dev_priv->saveFPB0);
+        I915_WRITE(FPB1, dev_priv->saveFPB1);
+        /* Actually enable it */
+        I915_WRITE(DPLL_B, dev_priv->saveDPLL_B);
+        DRM_UDELAY(150);
+        if (IS_I965G(dev))
+                I915_WRITE(DPLL_B_MD, dev_priv->saveDPLL_B_MD);
+        DRM_UDELAY(150);
+
+        /* Restore mode */
+        I915_WRITE(HTOTAL_B, dev_priv->saveHTOTAL_B);
+        I915_WRITE(HBLANK_B, dev_priv->saveHBLANK_B);
+        I915_WRITE(HSYNC_B, dev_priv->saveHSYNC_B);
+        I915_WRITE(VTOTAL_B, dev_priv->saveVTOTAL_B);
+        I915_WRITE(VBLANK_B, dev_priv->saveVBLANK_B);
+        I915_WRITE(VSYNC_B, dev_priv->saveVSYNC_B);
+        I915_WRITE(BCLRPAT_B, dev_priv->saveBCLRPAT_B);
+
+        /* Restore plane info */
+        I915_WRITE(DSPBSIZE, dev_priv->saveDSPBSIZE);
+        I915_WRITE(DSPBPOS, dev_priv->saveDSPBPOS);
+        I915_WRITE(PIPEBSRC, dev_priv->savePIPEBSRC);
+        I915_WRITE(DSPBADDR, dev_priv->saveDSPBADDR);
+        I915_WRITE(DSPBSTRIDE, dev_priv->saveDSPBSTRIDE);
+        if (IS_I965G(dev)) {
+                I915_WRITE(DSPBSURF, dev_priv->saveDSPBSURF);
+                I915_WRITE(DSPBTILEOFF, dev_priv->saveDSPBTILEOFF);
+        }
+
+        I915_WRITE(PIPEBCONF, dev_priv->savePIPEBCONF);
+
+        i915_restore_palette(dev, PIPE_B);
+        /* Enable the plane */
+        I915_WRITE(DSPBCNTR, dev_priv->saveDSPBCNTR);
+        I915_WRITE(DSPBADDR, I915_READ(DSPBADDR));
 
+        return;
+}
+int i915_save_state(struct drm_device *dev)
+{
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        int i;
+
+        pci_read_config_byte(dev->pdev, LBB, &dev_priv->saveLBB);
+
+        /* Render Standby */
+        if (IS_I965G(dev) && IS_MOBILE(dev))
+                dev_priv->saveRENDERSTANDBY = I915_READ(MCHBAR_RENDER_STANDBY);
+
+        /* Hardware status page */
+        dev_priv->saveHWS = I915_READ(HWS_PGA);
+
+        /* Display arbitration control */
+        dev_priv->saveDSPARB = I915_READ(DSPARB);
+
+        /* This is only meaningful in non-KMS mode */
+        /* Don't save them in KMS mode */
+        i915_save_modeset_reg(dev);
         /* Cursor state */
         dev_priv->saveCURACNTR = I915_READ(CURACNTR);
         dev_priv->saveCURAPOS = I915_READ(CURAPOS);
@@ -322,6 +426,20 @@ int i915_save_state(struct drm_device *dev)
         dev_priv->savePP_OFF_DELAYS = I915_READ(PP_OFF_DELAYS);
         dev_priv->savePP_DIVISOR = I915_READ(PP_DIVISOR);
 
+        /* Display Port state */
+        if (SUPPORTS_INTEGRATED_DP(dev)) {
+                dev_priv->saveDP_B = I915_READ(DP_B);
+                dev_priv->saveDP_C = I915_READ(DP_C);
+                dev_priv->saveDP_D = I915_READ(DP_D);
+                dev_priv->savePIPEA_GMCH_DATA_M = I915_READ(PIPEA_GMCH_DATA_M);
+                dev_priv->savePIPEB_GMCH_DATA_M = I915_READ(PIPEB_GMCH_DATA_M);
+                dev_priv->savePIPEA_GMCH_DATA_N = I915_READ(PIPEA_GMCH_DATA_N);
+                dev_priv->savePIPEB_GMCH_DATA_N = I915_READ(PIPEB_GMCH_DATA_N);
+                dev_priv->savePIPEA_DP_LINK_M = I915_READ(PIPEA_DP_LINK_M);
+                dev_priv->savePIPEB_DP_LINK_M = I915_READ(PIPEB_DP_LINK_M);
+                dev_priv->savePIPEA_DP_LINK_N = I915_READ(PIPEA_DP_LINK_N);
+                dev_priv->savePIPEB_DP_LINK_N = I915_READ(PIPEB_DP_LINK_N);
+        }
         /* FIXME: save TV & SDVO state */
 
         /* FBC state */
@@ -404,92 +522,21 @@ int i915_restore_state(struct drm_device *dev)
                         for (i = 0; i < 8; i++)
                                 I915_WRITE(FENCE_REG_945_8 + (i * 4), dev_priv->saveFENCE[i+8]);
         }
-
-        /* Pipe & plane A info */
-        /* Prime the clock */
-        if (dev_priv->saveDPLL_A & DPLL_VCO_ENABLE) {
-                I915_WRITE(DPLL_A, dev_priv->saveDPLL_A &
-                           ~DPLL_VCO_ENABLE);
-                DRM_UDELAY(150);
+        
+        /* Display port ratios (must be done before clock is set) */
+        if (SUPPORTS_INTEGRATED_DP(dev)) {
+                I915_WRITE(PIPEA_GMCH_DATA_M, dev_priv->savePIPEA_GMCH_DATA_M);
+                I915_WRITE(PIPEB_GMCH_DATA_M, dev_priv->savePIPEB_GMCH_DATA_M);
+                I915_WRITE(PIPEA_GMCH_DATA_N, dev_priv->savePIPEA_GMCH_DATA_N);
+                I915_WRITE(PIPEB_GMCH_DATA_N, dev_priv->savePIPEB_GMCH_DATA_N);
+                I915_WRITE(PIPEA_DP_LINK_M, dev_priv->savePIPEA_DP_LINK_M);
+                I915_WRITE(PIPEB_DP_LINK_M, dev_priv->savePIPEB_DP_LINK_M);
+                I915_WRITE(PIPEA_DP_LINK_N, dev_priv->savePIPEA_DP_LINK_N);
+                I915_WRITE(PIPEB_DP_LINK_N, dev_priv->savePIPEB_DP_LINK_N);
         }
-        I915_WRITE(FPA0, dev_priv->saveFPA0);
-        I915_WRITE(FPA1, dev_priv->saveFPA1);
-        /* Actually enable it */
-        I915_WRITE(DPLL_A, dev_priv->saveDPLL_A);
-        DRM_UDELAY(150);
-        if (IS_I965G(dev))
-                I915_WRITE(DPLL_A_MD, dev_priv->saveDPLL_A_MD);
-        DRM_UDELAY(150);
-
-        /* Restore mode */
-        I915_WRITE(HTOTAL_A, dev_priv->saveHTOTAL_A);
-        I915_WRITE(HBLANK_A, dev_priv->saveHBLANK_A);
-        I915_WRITE(HSYNC_A, dev_priv->saveHSYNC_A);
-        I915_WRITE(VTOTAL_A, dev_priv->saveVTOTAL_A);
-        I915_WRITE(VBLANK_A, dev_priv->saveVBLANK_A);
-        I915_WRITE(VSYNC_A, dev_priv->saveVSYNC_A);
-        I915_WRITE(BCLRPAT_A, dev_priv->saveBCLRPAT_A);
-
-        /* Restore plane info */
-        I915_WRITE(DSPASIZE, dev_priv->saveDSPASIZE);
-        I915_WRITE(DSPAPOS, dev_priv->saveDSPAPOS);
-        I915_WRITE(PIPEASRC, dev_priv->savePIPEASRC);
-        I915_WRITE(DSPAADDR, dev_priv->saveDSPAADDR);
-        I915_WRITE(DSPASTRIDE, dev_priv->saveDSPASTRIDE);
-        if (IS_I965G(dev)) {
-                I915_WRITE(DSPASURF, dev_priv->saveDSPASURF);
-                I915_WRITE(DSPATILEOFF, dev_priv->saveDSPATILEOFF);
-        }
-
-        I915_WRITE(PIPEACONF, dev_priv->savePIPEACONF);
-
-        i915_restore_palette(dev, PIPE_A);
-        /* Enable the plane */
-        I915_WRITE(DSPACNTR, dev_priv->saveDSPACNTR);
-        I915_WRITE(DSPAADDR, I915_READ(DSPAADDR));
-
-        /* Pipe & plane B info */
-        if (dev_priv->saveDPLL_B & DPLL_VCO_ENABLE) {
-                I915_WRITE(DPLL_B, dev_priv->saveDPLL_B &
-                           ~DPLL_VCO_ENABLE);
-                DRM_UDELAY(150);
-        }
-        I915_WRITE(FPB0, dev_priv->saveFPB0);
-        I915_WRITE(FPB1, dev_priv->saveFPB1);
-        /* Actually enable it */
-        I915_WRITE(DPLL_B, dev_priv->saveDPLL_B);
-        DRM_UDELAY(150);
-        if (IS_I965G(dev))
-                I915_WRITE(DPLL_B_MD, dev_priv->saveDPLL_B_MD);
-        DRM_UDELAY(150);
-
-        /* Restore mode */
-        I915_WRITE(HTOTAL_B, dev_priv->saveHTOTAL_B);
-        I915_WRITE(HBLANK_B, dev_priv->saveHBLANK_B);
-        I915_WRITE(HSYNC_B, dev_priv->saveHSYNC_B);
-        I915_WRITE(VTOTAL_B, dev_priv->saveVTOTAL_B);
-        I915_WRITE(VBLANK_B, dev_priv->saveVBLANK_B);
-        I915_WRITE(VSYNC_B, dev_priv->saveVSYNC_B);
-        I915_WRITE(BCLRPAT_B, dev_priv->saveBCLRPAT_B);
-
-        /* Restore plane info */
-        I915_WRITE(DSPBSIZE, dev_priv->saveDSPBSIZE);
-        I915_WRITE(DSPBPOS, dev_priv->saveDSPBPOS);
-        I915_WRITE(PIPEBSRC, dev_priv->savePIPEBSRC);
-        I915_WRITE(DSPBADDR, dev_priv->saveDSPBADDR);
-        I915_WRITE(DSPBSTRIDE, dev_priv->saveDSPBSTRIDE);
-        if (IS_I965G(dev)) {
-                I915_WRITE(DSPBSURF, dev_priv->saveDSPBSURF);
-                I915_WRITE(DSPBTILEOFF, dev_priv->saveDSPBTILEOFF);
-        }
-
-        I915_WRITE(PIPEBCONF, dev_priv->savePIPEBCONF);
-
-        i915_restore_palette(dev, PIPE_B);
-        /* Enable the plane */
-        I915_WRITE(DSPBCNTR, dev_priv->saveDSPBCNTR);
-        I915_WRITE(DSPBADDR, I915_READ(DSPBADDR));
-
+        /* This is only meaningful in non-KMS mode */
+        /* Don't restore them in KMS mode */
+        i915_restore_modeset_reg(dev);
         /* Cursor state */
         I915_WRITE(CURAPOS, dev_priv->saveCURAPOS);
         I915_WRITE(CURACNTR, dev_priv->saveCURACNTR);
@@ -518,6 +565,12 @@ int i915_restore_state(struct drm_device *dev)
         I915_WRITE(PP_DIVISOR, dev_priv->savePP_DIVISOR);
         I915_WRITE(PP_CONTROL, dev_priv->savePP_CONTROL);
 
+        /* Display Port state */
+        if (SUPPORTS_INTEGRATED_DP(dev)) {
+                I915_WRITE(DP_B, dev_priv->saveDP_B);
+                I915_WRITE(DP_C, dev_priv->saveDP_C);
+                I915_WRITE(DP_D, dev_priv->saveDP_D);
+        }
         /* FIXME: restore TV & SDVO state */
 
         /* FBC info */
@@ -545,7 +598,7 @@ int i915_restore_state(struct drm_device *dev)
 
         for (i = 0; i < 16; i++) {
                 I915_WRITE(SWF00 + (i << 2), dev_priv->saveSWF0[i]);
-                I915_WRITE(SWF10 + (i << 2), dev_priv->saveSWF1[i+7]);
+                I915_WRITE(SWF10 + (i << 2), dev_priv->saveSWF1[i]);
         }
         for (i = 0; i < 3; i++)
                 I915_WRITE(SWF30 + (i << 2), dev_priv->saveSWF2[i]);
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index cdd126d068a7..300aee3296c2 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -99,9 +99,11 @@ parse_lfp_panel_data(struct drm_i915_private *dev_priv,
 {
         struct bdb_lvds_options *lvds_options;
         struct bdb_lvds_lfp_data *lvds_lfp_data;
+        struct bdb_lvds_lfp_data_ptrs *lvds_lfp_data_ptrs;
         struct bdb_lvds_lfp_data_entry *entry;
         struct lvds_dvo_timing *dvo_timing;
         struct drm_display_mode *panel_fixed_mode;
+        int lfp_data_size, dvo_timing_offset;
 
         /* Defaults if we can't find VBT info */
         dev_priv->lvds_dither = 0;
@@ -119,10 +121,27 @@ parse_lfp_panel_data(struct drm_i915_private *dev_priv,
         if (!lvds_lfp_data)
                 return;
 
+        lvds_lfp_data_ptrs = find_section(bdb, BDB_LVDS_LFP_DATA_PTRS);
+        if (!lvds_lfp_data_ptrs)
+                return;
+
         dev_priv->lvds_vbt = 1;
 
-        entry = &lvds_lfp_data->data[lvds_options->panel_type];
-        dvo_timing = &entry->dvo_timing;
+        lfp_data_size = lvds_lfp_data_ptrs->ptr[1].dvo_timing_offset -
+                lvds_lfp_data_ptrs->ptr[0].dvo_timing_offset;
+        entry = (struct bdb_lvds_lfp_data_entry *)
+                ((uint8_t *)lvds_lfp_data->data + (lfp_data_size *
+                                                   lvds_options->panel_type));
+        dvo_timing_offset = lvds_lfp_data_ptrs->ptr[0].dvo_timing_offset -
+                lvds_lfp_data_ptrs->ptr[0].fp_timing_offset;
+
+        /*
+         * the size of fp_timing varies on the different platform.
+         * So calculate the DVO timing relative offset in LVDS data
+         * entry to get the DVO timing entry
+         */
+        dvo_timing = (struct lvds_dvo_timing *)
+                        ((unsigned char *)entry + dvo_timing_offset);
 
         panel_fixed_mode = kzalloc(sizeof(*panel_fixed_mode), GFP_KERNEL);
 
@@ -185,10 +204,12 @@ parse_general_features(struct drm_i915_private *dev_priv,
                 dev_priv->lvds_use_ssc = general->enable_ssc;
 
                 if (dev_priv->lvds_use_ssc) {
-                  if (IS_I855(dev_priv->dev))
-                    dev_priv->lvds_ssc_freq = general->ssc_freq ? 66 : 48;
-                  else
-                    dev_priv->lvds_ssc_freq = general->ssc_freq ? 100 : 96;
+                        if (IS_I85X(dev_priv->dev))
+                                dev_priv->lvds_ssc_freq =
+                                        general->ssc_freq ? 66 : 48;
+                        else
+                                dev_priv->lvds_ssc_freq =
+                                        general->ssc_freq ? 100 : 96;
                 }
         }
 }
@@ -275,6 +296,25 @@ parse_sdvo_device_mapping(struct drm_i915_private *dev_priv,
         }
         return;
 }
+
+static void
+parse_driver_features(struct drm_i915_private *dev_priv,
+                       struct bdb_header *bdb)
+{
+        struct drm_device *dev = dev_priv->dev;
+        struct bdb_driver_features *driver;
+
+        /* set default for chips without eDP */
+        if (!SUPPORTS_EDP(dev)) {
+                dev_priv->edp_support = 0;
+                return;
+        }
+
+        driver = find_section(bdb, BDB_DRIVER_FEATURES);
+        if (driver && driver->lvds_config == BDB_DRIVER_FEATURE_EDP)
+                dev_priv->edp_support = 1;
+}
+
 /**
  * intel_init_bios - initialize VBIOS settings & find VBT
  * @dev: DRM device
@@ -325,6 +365,8 @@ intel_init_bios(struct drm_device *dev)
         parse_lfp_panel_data(dev_priv, bdb);
         parse_sdvo_panel_data(dev_priv, bdb);
         parse_sdvo_device_mapping(dev_priv, bdb);
+        parse_driver_features(dev_priv, bdb);
+
         pci_unmap_rom(pdev, bios);
 
         return 0;
diff --git a/drivers/gpu/drm/i915/intel_bios.h b/drivers/gpu/drm/i915/intel_bios.h
index fe72e1c225d8..0f8e5f69ac7a 100644
--- a/drivers/gpu/drm/i915/intel_bios.h
+++ b/drivers/gpu/drm/i915/intel_bios.h
@@ -381,6 +381,51 @@ struct bdb_sdvo_lvds_options {
 } __attribute__((packed));
 
 
+#define BDB_DRIVER_FEATURE_NO_LVDS              0
+#define BDB_DRIVER_FEATURE_INT_LVDS             1
+#define BDB_DRIVER_FEATURE_SDVO_LVDS            2
+#define BDB_DRIVER_FEATURE_EDP                  3
+
+struct bdb_driver_features {
+        u8 boot_dev_algorithm:1;
+        u8 block_display_switch:1;
+        u8 allow_display_switch:1;
+        u8 hotplug_dvo:1;
+        u8 dual_view_zoom:1;
+        u8 int15h_hook:1;
+        u8 sprite_in_clone:1;
+        u8 primary_lfp_id:1;
+
+        u16 boot_mode_x;
+        u16 boot_mode_y;
+        u8 boot_mode_bpp;
+        u8 boot_mode_refresh;
+
+        u16 enable_lfp_primary:1;
+        u16 selective_mode_pruning:1;
+        u16 dual_frequency:1;
+        u16 render_clock_freq:1; /* 0: high freq; 1: low freq */
+        u16 nt_clone_support:1;
+        u16 power_scheme_ui:1; /* 0: CUI; 1: 3rd party */
+        u16 sprite_display_assign:1; /* 0: secondary; 1: primary */
+        u16 cui_aspect_scaling:1;
+        u16 preserve_aspect_ratio:1;
+        u16 sdvo_device_power_down:1;
+        u16 crt_hotplug:1;
+        u16 lvds_config:2;
+        u16 tv_hotplug:1;
+        u16 hdmi_config:2;
+
+        u8 static_display:1;
+        u8 reserved2:7;
+        u16 legacy_crt_max_x;
+        u16 legacy_crt_max_y;
+        u8 legacy_crt_max_refresh;
+
+        u8 hdmi_termination;
+        u8 custom_vbt_version;
+} __attribute__((packed));
+
 bool intel_init_bios(struct drm_device *dev);
 
 /*
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 6de97fc66029..4cf8e2e88a40 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -46,7 +46,7 @@ static void intel_crt_dpms(struct drm_encoder *encoder, int mode)
 
         temp = I915_READ(reg);
         temp &= ~(ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE);
-        temp |= ADPA_DAC_ENABLE;
+        temp &= ~ADPA_DAC_ENABLE;
 
         switch(mode) {
         case DRM_MODE_DPMS_ON:
@@ -156,6 +156,9 @@ static bool intel_igdng_crt_detect_hotplug(struct drm_connector *connector)
 
         temp = adpa = I915_READ(PCH_ADPA);
 
+        adpa &= ~ADPA_DAC_ENABLE;
+        I915_WRITE(PCH_ADPA, adpa);
+
         adpa &= ~ADPA_CRT_HOTPLUG_MASK;
 
         adpa |= (ADPA_CRT_HOTPLUG_PERIOD_128 |
@@ -169,13 +172,14 @@ static bool intel_igdng_crt_detect_hotplug(struct drm_connector *connector)
         DRM_DEBUG("pch crt adpa 0x%x", adpa);
         I915_WRITE(PCH_ADPA, adpa);
 
-        /* This might not be needed as not specified in spec...*/
-        udelay(1000);
+        while ((I915_READ(PCH_ADPA) & ADPA_CRT_HOTPLUG_FORCE_TRIGGER) != 0)
+                ;
 
         /* Check the status to see if both blue and green are on now */
         adpa = I915_READ(PCH_ADPA);
-        if ((adpa & ADPA_CRT_HOTPLUG_MONITOR_MASK) ==
-                        ADPA_CRT_HOTPLUG_MONITOR_COLOR)
+        adpa &= ADPA_CRT_HOTPLUG_MONITOR_MASK;
+        if ((adpa == ADPA_CRT_HOTPLUG_MONITOR_COLOR) ||
+                (adpa == ADPA_CRT_HOTPLUG_MONITOR_MONO))
                 ret = true;
         else
                 ret = false;
@@ -428,8 +432,34 @@ static void intel_crt_destroy(struct drm_connector *connector)
 
 static int intel_crt_get_modes(struct drm_connector *connector)
 {
+        int ret;
         struct intel_output *intel_output = to_intel_output(connector);
-        return intel_ddc_get_modes(intel_output);
+        struct i2c_adapter *ddcbus;
+        struct drm_device *dev = connector->dev;
+
+
+        ret = intel_ddc_get_modes(intel_output);
+        if (ret || !IS_G4X(dev))
+                goto end;
+
+        ddcbus = intel_output->ddc_bus;
+        /* Try to probe digital port for output in DVI-I -> VGA mode. */
+        intel_output->ddc_bus =
+                intel_i2c_create(connector->dev, GPIOD, "CRTDDC_D");
+
+        if (!intel_output->ddc_bus) {
+                intel_output->ddc_bus = ddcbus;
+                dev_printk(KERN_ERR, &connector->dev->pdev->dev,
+                           "DDC bus registration failed for CRTDDC_D.\n");
+                goto end;
+        }
+        /* Try to get modes by GPIOD port */
+        ret = intel_ddc_get_modes(intel_output);
+        intel_i2c_destroy(ddcbus);
+
+end:
+        return ret;
+
 }
 
 static int intel_crt_set_property(struct drm_connector *connector,
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 3e1c78162119..d6fce2133413 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -25,14 +25,19 @@
  */
 
 #include <linux/i2c.h>
+#include <linux/kernel.h>
 #include "drmP.h"
 #include "intel_drv.h"
 #include "i915_drm.h"
 #include "i915_drv.h"
+#include "intel_dp.h"
 
 #include "drm_crtc_helper.h"
 
+#define HAS_eDP (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))
+
 bool intel_pipe_has_type (struct drm_crtc *crtc, int type);
+static void intel_update_watermarks(struct drm_device *dev);
 
 typedef struct {
     /* given values */
@@ -85,7 +90,7 @@ struct intel_limit {
 #define I8XX_P2_SLOW                  4
 #define I8XX_P2_FAST                  2
 #define I8XX_P2_LVDS_SLOW             14
-#define I8XX_P2_LVDS_FAST             14 /* No fast option */
+#define I8XX_P2_LVDS_FAST             7
 #define I8XX_P2_SLOW_LIMIT       165000
 
 #define I9XX_DOT_MIN              20000
@@ -127,19 +132,6 @@ struct intel_limit {
 #define I9XX_P2_LVDS_FAST                     7
 #define I9XX_P2_LVDS_SLOW_LIMIT          112000
 
-#define INTEL_LIMIT_I8XX_DVO_DAC    0
-#define INTEL_LIMIT_I8XX_LVDS       1
-#define INTEL_LIMIT_I9XX_SDVO_DAC   2
-#define INTEL_LIMIT_I9XX_LVDS       3
-#define INTEL_LIMIT_G4X_SDVO        4
-#define INTEL_LIMIT_G4X_HDMI_DAC   5
-#define INTEL_LIMIT_G4X_SINGLE_CHANNEL_LVDS   6
-#define INTEL_LIMIT_G4X_DUAL_CHANNEL_LVDS   7
-#define INTEL_LIMIT_IGD_SDVO_DAC    8
-#define INTEL_LIMIT_IGD_LVDS        9
-#define INTEL_LIMIT_IGDNG_SDVO_DAC  10
-#define INTEL_LIMIT_IGDNG_LVDS      11
-
 /*The parameter is for SDVO on G4x platform*/
 #define G4X_DOT_SDVO_MIN           25000
 #define G4X_DOT_SDVO_MAX           270000
@@ -218,6 +210,25 @@ struct intel_limit {
 #define G4X_P2_DUAL_CHANNEL_LVDS_FAST           7
 #define G4X_P2_DUAL_CHANNEL_LVDS_LIMIT          0
 
+/*The parameter is for DISPLAY PORT on G4x platform*/
+#define G4X_DOT_DISPLAY_PORT_MIN           161670
+#define G4X_DOT_DISPLAY_PORT_MAX           227000
+#define G4X_N_DISPLAY_PORT_MIN             1
+#define G4X_N_DISPLAY_PORT_MAX             2
+#define G4X_M_DISPLAY_PORT_MIN             97
+#define G4X_M_DISPLAY_PORT_MAX             108
+#define G4X_M1_DISPLAY_PORT_MIN            0x10
+#define G4X_M1_DISPLAY_PORT_MAX            0x12
+#define G4X_M2_DISPLAY_PORT_MIN            0x05
+#define G4X_M2_DISPLAY_PORT_MAX            0x06
+#define G4X_P_DISPLAY_PORT_MIN             10
+#define G4X_P_DISPLAY_PORT_MAX             20
+#define G4X_P1_DISPLAY_PORT_MIN            1
+#define G4X_P1_DISPLAY_PORT_MAX            2
+#define G4X_P2_DISPLAY_PORT_SLOW           10
+#define G4X_P2_DISPLAY_PORT_FAST           10
+#define G4X_P2_DISPLAY_PORT_LIMIT          0
+
 /* IGDNG */
 /* as we calculate clock using (register_value + 2) for
    N/M1/M2, so here the range value for them is (actual_value-2).
@@ -256,8 +267,14 @@ static bool
 intel_igdng_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
                         int target, int refclk, intel_clock_t *best_clock);
 
-static const intel_limit_t intel_limits[] = {
-    { /* INTEL_LIMIT_I8XX_DVO_DAC */
+static bool
+intel_find_pll_g4x_dp(const intel_limit_t *, struct drm_crtc *crtc,
+                      int target, int refclk, intel_clock_t *best_clock);
+static bool
+intel_find_pll_igdng_dp(const intel_limit_t *, struct drm_crtc *crtc,
+                      int target, int refclk, intel_clock_t *best_clock);
+
+static const intel_limit_t intel_limits_i8xx_dvo = {
         .dot = { .min = I8XX_DOT_MIN,           .max = I8XX_DOT_MAX },
         .vco = { .min = I8XX_VCO_MIN,           .max = I8XX_VCO_MAX },
         .n   = { .min = I8XX_N_MIN,             .max = I8XX_N_MAX },
@@ -269,8 +286,9 @@ static const intel_limit_t intel_limits[] = {
         .p2  = { .dot_limit = I8XX_P2_SLOW_LIMIT,
                  .p2_slow = I8XX_P2_SLOW,       .p2_fast = I8XX_P2_FAST },
         .find_pll = intel_find_best_PLL,
-    },
-    { /* INTEL_LIMIT_I8XX_LVDS */
+};
+
+static const intel_limit_t intel_limits_i8xx_lvds = {
         .dot = { .min = I8XX_DOT_MIN,           .max = I8XX_DOT_MAX },
         .vco = { .min = I8XX_VCO_MIN,           .max = I8XX_VCO_MAX },
         .n   = { .min = I8XX_N_MIN,             .max = I8XX_N_MAX },
@@ -282,8 +300,9 @@ static const intel_limit_t intel_limits[] = {
         .p2  = { .dot_limit = I8XX_P2_SLOW_LIMIT,
                  .p2_slow = I8XX_P2_LVDS_SLOW,  .p2_fast = I8XX_P2_LVDS_FAST },
         .find_pll = intel_find_best_PLL,
-    },
-    { /* INTEL_LIMIT_I9XX_SDVO_DAC */
+};
+        
+static const intel_limit_t intel_limits_i9xx_sdvo = {
         .dot = { .min = I9XX_DOT_MIN,           .max = I9XX_DOT_MAX },
         .vco = { .min = I9XX_VCO_MIN,           .max = I9XX_VCO_MAX },
         .n   = { .min = I9XX_N_MIN,             .max = I9XX_N_MAX },
@@ -295,8 +314,9 @@ static const intel_limit_t intel_limits[] = {
         .p2  = { .dot_limit = I9XX_P2_SDVO_DAC_SLOW_LIMIT,
                  .p2_slow = I9XX_P2_SDVO_DAC_SLOW,      .p2_fast = I9XX_P2_SDVO_DAC_FAST },
         .find_pll = intel_find_best_PLL,
-    },
-    { /* INTEL_LIMIT_I9XX_LVDS */
+};
+
+static const intel_limit_t intel_limits_i9xx_lvds = {
         .dot = { .min = I9XX_DOT_MIN,           .max = I9XX_DOT_MAX },
         .vco = { .min = I9XX_VCO_MIN,           .max = I9XX_VCO_MAX },
         .n   = { .min = I9XX_N_MIN,             .max = I9XX_N_MAX },
@@ -311,9 +331,10 @@ static const intel_limit_t intel_limits[] = {
         .p2  = { .dot_limit = I9XX_P2_LVDS_SLOW_LIMIT,
                  .p2_slow = I9XX_P2_LVDS_SLOW,  .p2_fast = I9XX_P2_LVDS_FAST },
         .find_pll = intel_find_best_PLL,
-    },
+};
+
     /* below parameter and function is for G4X Chipset Family*/
-    { /* INTEL_LIMIT_G4X_SDVO */
+static const intel_limit_t intel_limits_g4x_sdvo = {
         .dot = { .min = G4X_DOT_SDVO_MIN,       .max = G4X_DOT_SDVO_MAX },
         .vco = { .min = G4X_VCO_MIN,            .max = G4X_VCO_MAX},
         .n   = { .min = G4X_N_SDVO_MIN,         .max = G4X_N_SDVO_MAX },
@@ -327,8 +348,9 @@ static const intel_limit_t intel_limits[] = {
                  .p2_fast = G4X_P2_SDVO_FAST
         },
         .find_pll = intel_g4x_find_best_PLL,
-    },
-    { /* INTEL_LIMIT_G4X_HDMI_DAC */
+};
+
+static const intel_limit_t intel_limits_g4x_hdmi = {
         .dot = { .min = G4X_DOT_HDMI_DAC_MIN,   .max = G4X_DOT_HDMI_DAC_MAX },
         .vco = { .min = G4X_VCO_MIN,            .max = G4X_VCO_MAX},
         .n   = { .min = G4X_N_HDMI_DAC_MIN,     .max = G4X_N_HDMI_DAC_MAX },
@@ -342,8 +364,9 @@ static const intel_limit_t intel_limits[] = {
                  .p2_fast = G4X_P2_HDMI_DAC_FAST
         },
         .find_pll = intel_g4x_find_best_PLL,
-    },
-    { /* INTEL_LIMIT_G4X_SINGLE_CHANNEL_LVDS */
+};
+
+static const intel_limit_t intel_limits_g4x_single_channel_lvds = {
         .dot = { .min = G4X_DOT_SINGLE_CHANNEL_LVDS_MIN,
                  .max = G4X_DOT_SINGLE_CHANNEL_LVDS_MAX },
         .vco = { .min = G4X_VCO_MIN,
@@ -365,8 +388,9 @@ static const intel_limit_t intel_limits[] = {
                  .p2_fast = G4X_P2_SINGLE_CHANNEL_LVDS_FAST
         },
         .find_pll = intel_g4x_find_best_PLL,
-    },
-    { /* INTEL_LIMIT_G4X_DUAL_CHANNEL_LVDS */
+};
+
+static const intel_limit_t intel_limits_g4x_dual_channel_lvds = {
         .dot = { .min = G4X_DOT_DUAL_CHANNEL_LVDS_MIN,
                  .max = G4X_DOT_DUAL_CHANNEL_LVDS_MAX },
         .vco = { .min = G4X_VCO_MIN,
@@ -388,8 +412,32 @@ static const intel_limit_t intel_limits[] = {
                  .p2_fast = G4X_P2_DUAL_CHANNEL_LVDS_FAST
         },
         .find_pll = intel_g4x_find_best_PLL,
-    },
-    { /* INTEL_LIMIT_IGD_SDVO */
+};
+
+static const intel_limit_t intel_limits_g4x_display_port = {
+        .dot = { .min = G4X_DOT_DISPLAY_PORT_MIN,
+                 .max = G4X_DOT_DISPLAY_PORT_MAX },
+        .vco = { .min = G4X_VCO_MIN,
+                 .max = G4X_VCO_MAX},
+        .n   = { .min = G4X_N_DISPLAY_PORT_MIN,
+                 .max = G4X_N_DISPLAY_PORT_MAX },
+        .m   = { .min = G4X_M_DISPLAY_PORT_MIN,
+                 .max = G4X_M_DISPLAY_PORT_MAX },
+        .m1  = { .min = G4X_M1_DISPLAY_PORT_MIN,
+                 .max = G4X_M1_DISPLAY_PORT_MAX },
+        .m2  = { .min = G4X_M2_DISPLAY_PORT_MIN,
+                 .max = G4X_M2_DISPLAY_PORT_MAX },
+        .p   = { .min = G4X_P_DISPLAY_PORT_MIN,
+                 .max = G4X_P_DISPLAY_PORT_MAX },
+        .p1  = { .min = G4X_P1_DISPLAY_PORT_MIN,
+                 .max = G4X_P1_DISPLAY_PORT_MAX},
+        .p2  = { .dot_limit = G4X_P2_DISPLAY_PORT_LIMIT,
+                 .p2_slow = G4X_P2_DISPLAY_PORT_SLOW,
+                 .p2_fast = G4X_P2_DISPLAY_PORT_FAST },
+        .find_pll = intel_find_pll_g4x_dp,
+};
+
+static const intel_limit_t intel_limits_igd_sdvo = {
         .dot = { .min = I9XX_DOT_MIN,           .max = I9XX_DOT_MAX},
         .vco = { .min = IGD_VCO_MIN,            .max = IGD_VCO_MAX },
         .n   = { .min = IGD_N_MIN,              .max = IGD_N_MAX },
@@ -401,8 +449,9 @@ static const intel_limit_t intel_limits[] = {
         .p2  = { .dot_limit = I9XX_P2_SDVO_DAC_SLOW_LIMIT,
                  .p2_slow = I9XX_P2_SDVO_DAC_SLOW,      .p2_fast = I9XX_P2_SDVO_DAC_FAST },
         .find_pll = intel_find_best_PLL,
-    },
-    { /* INTEL_LIMIT_IGD_LVDS */
+};
+
+static const intel_limit_t intel_limits_igd_lvds = {
         .dot = { .min = I9XX_DOT_MIN,           .max = I9XX_DOT_MAX },
         .vco = { .min = IGD_VCO_MIN,            .max = IGD_VCO_MAX },
         .n   = { .min = IGD_N_MIN,              .max = IGD_N_MAX },
@@ -415,8 +464,9 @@ static const intel_limit_t intel_limits[] = {
         .p2  = { .dot_limit = I9XX_P2_LVDS_SLOW_LIMIT,
                  .p2_slow = I9XX_P2_LVDS_SLOW,  .p2_fast = I9XX_P2_LVDS_SLOW },
         .find_pll = intel_find_best_PLL,
-    },
-    { /* INTEL_LIMIT_IGDNG_SDVO_DAC */
+};
+
+static const intel_limit_t intel_limits_igdng_sdvo = {
         .dot = { .min = IGDNG_DOT_MIN,          .max = IGDNG_DOT_MAX },
         .vco = { .min = IGDNG_VCO_MIN,          .max = IGDNG_VCO_MAX },
         .n   = { .min = IGDNG_N_MIN,            .max = IGDNG_N_MAX },
@@ -429,8 +479,9 @@ static const intel_limit_t intel_limits[] = {
                  .p2_slow = IGDNG_P2_SDVO_DAC_SLOW,
                  .p2_fast = IGDNG_P2_SDVO_DAC_FAST },
         .find_pll = intel_igdng_find_best_PLL,
-    },
-    { /* INTEL_LIMIT_IGDNG_LVDS */
+};
+
+static const intel_limit_t intel_limits_igdng_lvds = {
         .dot = { .min = IGDNG_DOT_MIN,          .max = IGDNG_DOT_MAX },
         .vco = { .min = IGDNG_VCO_MIN,          .max = IGDNG_VCO_MAX },
         .n   = { .min = IGDNG_N_MIN,            .max = IGDNG_N_MAX },
@@ -443,16 +494,15 @@ static const intel_limit_t intel_limits[] = {
                  .p2_slow = IGDNG_P2_LVDS_SLOW,
                  .p2_fast = IGDNG_P2_LVDS_FAST },
         .find_pll = intel_igdng_find_best_PLL,
-    },
 };
 
 static const intel_limit_t *intel_igdng_limit(struct drm_crtc *crtc)
 {
         const intel_limit_t *limit;
         if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
-                limit = &intel_limits[INTEL_LIMIT_IGDNG_LVDS];
+                limit = &intel_limits_igdng_lvds;
         else
-                limit = &intel_limits[INTEL_LIMIT_IGDNG_SDVO_DAC];
+                limit = &intel_limits_igdng_sdvo;
 
         return limit;
 }
@@ -467,19 +517,19 @@ static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc)
                 if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) ==
                     LVDS_CLKB_POWER_UP)
                         /* LVDS with dual channel */
-                        limit = &intel_limits
-                                        [INTEL_LIMIT_G4X_DUAL_CHANNEL_LVDS];
+                        limit = &intel_limits_g4x_dual_channel_lvds;
                 else
                         /* LVDS with dual channel */
-                        limit = &intel_limits
-                                        [INTEL_LIMIT_G4X_SINGLE_CHANNEL_LVDS];
+                        limit = &intel_limits_g4x_single_channel_lvds;
         } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) ||
                    intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) {
-                limit = &intel_limits[INTEL_LIMIT_G4X_HDMI_DAC];
+                limit = &intel_limits_g4x_hdmi;
         } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) {
-                limit = &intel_limits[INTEL_LIMIT_G4X_SDVO];
+                limit = &intel_limits_g4x_sdvo;
+        } else if (intel_pipe_has_type (crtc, INTEL_OUTPUT_DISPLAYPORT)) {
+                limit = &intel_limits_g4x_display_port;
         } else /* The option is for other outputs */
-                limit = &intel_limits[INTEL_LIMIT_I9XX_SDVO_DAC];
+                limit = &intel_limits_i9xx_sdvo;
 
         return limit;
 }
@@ -495,19 +545,19 @@ static const intel_limit_t *intel_limit(struct drm_crtc *crtc)
                 limit = intel_g4x_limit(crtc);
         } else if (IS_I9XX(dev) && !IS_IGD(dev)) {
                 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
-                        limit = &intel_limits[INTEL_LIMIT_I9XX_LVDS];
+                        limit = &intel_limits_i9xx_lvds;
                 else
-                        limit = &intel_limits[INTEL_LIMIT_I9XX_SDVO_DAC];
+                        limit = &intel_limits_i9xx_sdvo;
         } else if (IS_IGD(dev)) {
                 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
-                        limit = &intel_limits[INTEL_LIMIT_IGD_LVDS];
+                        limit = &intel_limits_igd_lvds;
                 else
-                        limit = &intel_limits[INTEL_LIMIT_IGD_SDVO_DAC];
+                        limit = &intel_limits_igd_sdvo;
         } else {
                 if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
-                        limit = &intel_limits[INTEL_LIMIT_I8XX_LVDS];
+                        limit = &intel_limits_i8xx_lvds;
                 else
-                        limit = &intel_limits[INTEL_LIMIT_I8XX_DVO_DAC];
+                        limit = &intel_limits_i8xx_dvo;
         }
         return limit;
 }
@@ -553,6 +603,23 @@ bool intel_pipe_has_type (struct drm_crtc *crtc, int type)
     return false;
 }
 
+struct drm_connector *
+intel_pipe_get_output (struct drm_crtc *crtc)
+{
+    struct drm_device *dev = crtc->dev;
+    struct drm_mode_config *mode_config = &dev->mode_config;
+    struct drm_connector *l_entry, *ret = NULL;
+
+    list_for_each_entry(l_entry, &mode_config->connector_list, head) {
+            if (l_entry->encoder &&
+                l_entry->encoder->crtc == crtc) {
+                    ret = l_entry;
+                    break;
+            }
+    }
+    return ret;
+}
+
 #define INTELPllInvalid(s)   do { /* DRM_DEBUG(s); */ return false; } while (0)
 /**
  * Returns whether the given set of divisors are valid for a given refclk with
@@ -600,7 +667,7 @@ intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
         int err = target;
 
         if (IS_I9XX(dev) && intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
-            (I915_READ(LVDS) & LVDS_PORT_EN) != 0) {
+            (I915_READ(LVDS)) != 0) {
                 /*
                  * For LVDS, if the panel is on, just rely on its current
                  * settings for dual-channel.  We haven't figured out how to
@@ -707,6 +774,30 @@ intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
 }
 
 static bool
+intel_find_pll_igdng_dp(const intel_limit_t *limit, struct drm_crtc *crtc,
+                      int target, int refclk, intel_clock_t *best_clock)
+{
+        struct drm_device *dev = crtc->dev;
+        intel_clock_t clock;
+        if (target < 200000) {
+                clock.n = 1;
+                clock.p1 = 2;
+                clock.p2 = 10;
+                clock.m1 = 12;
+                clock.m2 = 9;
+        } else {
+                clock.n = 2;
+                clock.p1 = 1;
+                clock.p2 = 10;
+                clock.m1 = 14;
+                clock.m2 = 8;
+        }
+        intel_clock(dev, refclk, &clock);
+        memcpy(best_clock, &clock, sizeof(intel_clock_t));
+        return true;
+}
+
+static bool
 intel_igdng_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
                         int target, int refclk, intel_clock_t *best_clock)
 {
@@ -718,6 +809,14 @@ intel_igdng_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
         int err_most = 47;
         found = false;
 
+        /* eDP has only 2 clock choice, no n/m/p setting */
+        if (HAS_eDP)
+                return true;
+
+        if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT))
+                return intel_find_pll_igdng_dp(limit, crtc, target,
+                                               refclk, best_clock);
+
         if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
                 if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) ==
                     LVDS_CLKB_POWER_UP)
@@ -764,6 +863,32 @@ out:
         return found;
 }
 
+/* DisplayPort has only two frequencies, 162MHz and 270MHz */
+static bool
+intel_find_pll_g4x_dp(const intel_limit_t *limit, struct drm_crtc *crtc,
+                      int target, int refclk, intel_clock_t *best_clock)
+{
+    intel_clock_t clock;
+    if (target < 200000) {
+        clock.p1 = 2;
+        clock.p2 = 10;
+        clock.n = 2;
+        clock.m1 = 23;
+        clock.m2 = 8;
+    } else {
+        clock.p1 = 1;
+        clock.p2 = 10;
+        clock.n = 1;
+        clock.m1 = 14;
+        clock.m2 = 2;
+    }
+    clock.m = 5 * (clock.m1 + 2) + (clock.m2 + 2);
+    clock.p = (clock.p1 * clock.p2);
+    clock.dot = 96000 * clock.m / (clock.n + 2) / clock.p;
+    memcpy(best_clock, &clock, sizeof(intel_clock_t));
+    return true;
+}
+
 void
 intel_wait_for_vblank(struct drm_device *dev)
 {
@@ -927,13 +1052,97 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
         return 0;
 }
 
+/* Disable the VGA plane that we never use */
+static void i915_disable_vga (struct drm_device *dev)
+{
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        u8 sr1;
+        u32 vga_reg;
+
+        if (IS_IGDNG(dev))
+                vga_reg = CPU_VGACNTRL;
+        else
+                vga_reg = VGACNTRL;
+
+        if (I915_READ(vga_reg) & VGA_DISP_DISABLE)
+                return;
+
+        I915_WRITE8(VGA_SR_INDEX, 1);
+        sr1 = I915_READ8(VGA_SR_DATA);
+        I915_WRITE8(VGA_SR_DATA, sr1 | (1 << 5));
+        udelay(100);
+
+        I915_WRITE(vga_reg, VGA_DISP_DISABLE);
+}
+
+static void igdng_disable_pll_edp (struct drm_crtc *crtc)
+{
+        struct drm_device *dev = crtc->dev;
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        u32 dpa_ctl;
+
+        DRM_DEBUG("\n");
+        dpa_ctl = I915_READ(DP_A);
+        dpa_ctl &= ~DP_PLL_ENABLE;
+        I915_WRITE(DP_A, dpa_ctl);
+}
+
+static void igdng_enable_pll_edp (struct drm_crtc *crtc)
+{
+        struct drm_device *dev = crtc->dev;
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        u32 dpa_ctl;
+
+        dpa_ctl = I915_READ(DP_A);
+        dpa_ctl |= DP_PLL_ENABLE;
+        I915_WRITE(DP_A, dpa_ctl);
+        udelay(200);
+}
+
+
+static void igdng_set_pll_edp (struct drm_crtc *crtc, int clock)
+{
+        struct drm_device *dev = crtc->dev;
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        u32 dpa_ctl;
+
+        DRM_DEBUG("eDP PLL enable for clock %d\n", clock);
+        dpa_ctl = I915_READ(DP_A);
+        dpa_ctl &= ~DP_PLL_FREQ_MASK;
+
+        if (clock < 200000) {
+                u32 temp;
+                dpa_ctl |= DP_PLL_FREQ_160MHZ;
+                /* workaround for 160Mhz:
+                   1) program 0x4600c bits 15:0 = 0x8124
+                   2) program 0x46010 bit 0 = 1
+                   3) program 0x46034 bit 24 = 1
+                   4) program 0x64000 bit 14 = 1
+                   */
+                temp = I915_READ(0x4600c);
+                temp &= 0xffff0000;
+                I915_WRITE(0x4600c, temp | 0x8124);
+
+                temp = I915_READ(0x46010);
+                I915_WRITE(0x46010, temp | 1);
+
+                temp = I915_READ(0x46034);
+                I915_WRITE(0x46034, temp | (1 << 24));
+        } else {
+                dpa_ctl |= DP_PLL_FREQ_270MHZ;
+        }
+        I915_WRITE(DP_A, dpa_ctl);
+
+        udelay(500);
+}
+
 static void igdng_crtc_dpms(struct drm_crtc *crtc, int mode)
 {
         struct drm_device *dev = crtc->dev;
         struct drm_i915_private *dev_priv = dev->dev_private;
         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
         int pipe = intel_crtc->pipe;
-        int plane = intel_crtc->pipe;
+        int plane = intel_crtc->plane;
         int pch_dpll_reg = (pipe == 0) ? PCH_DPLL_A : PCH_DPLL_B;
         int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF;
         int dspcntr_reg = (plane == 0) ? DSPACNTR : DSPBCNTR;
@@ -944,6 +1153,7 @@ static void igdng_crtc_dpms(struct drm_crtc *crtc, int mode)
         int fdi_rx_imr_reg = (pipe == 0) ? FDI_RXA_IMR : FDI_RXB_IMR;
         int transconf_reg = (pipe == 0) ? TRANSACONF : TRANSBCONF;
         int pf_ctl_reg = (pipe == 0) ? PFA_CTL_1 : PFB_CTL_1;
+        int pf_win_size = (pipe == 0) ? PFA_WIN_SZ : PFB_WIN_SZ;
         int cpu_htot_reg = (pipe == 0) ? HTOTAL_A : HTOTAL_B;
         int cpu_hblank_reg = (pipe == 0) ? HBLANK_A : HBLANK_B;
         int cpu_hsync_reg = (pipe == 0) ? HSYNC_A : HSYNC_B;
@@ -957,7 +1167,7 @@ static void igdng_crtc_dpms(struct drm_crtc *crtc, int mode)
         int trans_vblank_reg = (pipe == 0) ? TRANS_VBLANK_A : TRANS_VBLANK_B;
         int trans_vsync_reg = (pipe == 0) ? TRANS_VSYNC_A : TRANS_VSYNC_B;
         u32 temp;
-        int tries = 5, j;
+        int tries = 5, j, n;
 
         /* XXX: When our outputs are all unaware of DPMS modes other than off
          * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC.
@@ -967,27 +1177,32 @@ static void igdng_crtc_dpms(struct drm_crtc *crtc, int mode)
         case DRM_MODE_DPMS_STANDBY:
         case DRM_MODE_DPMS_SUSPEND:
                 DRM_DEBUG("crtc %d dpms on\n", pipe);
-                /* enable PCH DPLL */
-                temp = I915_READ(pch_dpll_reg);
-                if ((temp & DPLL_VCO_ENABLE) == 0) {
-                        I915_WRITE(pch_dpll_reg, temp | DPLL_VCO_ENABLE);
-                        I915_READ(pch_dpll_reg);
-                }
-
-                /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
-                temp = I915_READ(fdi_rx_reg);
-                I915_WRITE(fdi_rx_reg, temp | FDI_RX_PLL_ENABLE |
-                                FDI_SEL_PCDCLK |
-                                FDI_DP_PORT_WIDTH_X4); /* default 4 lanes */
-                I915_READ(fdi_rx_reg);
-                udelay(200);
+                if (HAS_eDP) {
+                        /* enable eDP PLL */
+                        igdng_enable_pll_edp(crtc);
+                } else {
+                        /* enable PCH DPLL */
+                        temp = I915_READ(pch_dpll_reg);
+                        if ((temp & DPLL_VCO_ENABLE) == 0) {
+                                I915_WRITE(pch_dpll_reg, temp | DPLL_VCO_ENABLE);
+                                I915_READ(pch_dpll_reg);
+                        }
 
-                /* Enable CPU FDI TX PLL, always on for IGDNG */
-                temp = I915_READ(fdi_tx_reg);
-                if ((temp & FDI_TX_PLL_ENABLE) == 0) {
-                        I915_WRITE(fdi_tx_reg, temp | FDI_TX_PLL_ENABLE);
-                        I915_READ(fdi_tx_reg);
-                        udelay(100);
+                        /* enable PCH FDI RX PLL, wait warmup plus DMI latency */
+                        temp = I915_READ(fdi_rx_reg);
+                        I915_WRITE(fdi_rx_reg, temp | FDI_RX_PLL_ENABLE |
+                                        FDI_SEL_PCDCLK |
+                                        FDI_DP_PORT_WIDTH_X4); /* default 4 lanes */
+                        I915_READ(fdi_rx_reg);
+                        udelay(200);
+
+                        /* Enable CPU FDI TX PLL, always on for IGDNG */
+                        temp = I915_READ(fdi_tx_reg);
+                        if ((temp & FDI_TX_PLL_ENABLE) == 0) {
+                                I915_WRITE(fdi_tx_reg, temp | FDI_TX_PLL_ENABLE);
+                                I915_READ(fdi_tx_reg);
+                                udelay(100);
+                        }
                 }
 
                 /* Enable CPU pipe */
@@ -1006,122 +1221,126 @@ static void igdng_crtc_dpms(struct drm_crtc *crtc, int mode)
                         I915_WRITE(dspbase_reg, I915_READ(dspbase_reg));
                 }
 
-                /* enable CPU FDI TX and PCH FDI RX */
-                temp = I915_READ(fdi_tx_reg);
-                temp |= FDI_TX_ENABLE;
-                temp |= FDI_DP_PORT_WIDTH_X4; /* default */
-                temp &= ~FDI_LINK_TRAIN_NONE;
-                temp |= FDI_LINK_TRAIN_PATTERN_1;
-                I915_WRITE(fdi_tx_reg, temp);
-                I915_READ(fdi_tx_reg);
+                if (!HAS_eDP) {
+                        /* enable CPU FDI TX and PCH FDI RX */
+                        temp = I915_READ(fdi_tx_reg);
+                        temp |= FDI_TX_ENABLE;
+                        temp |= FDI_DP_PORT_WIDTH_X4; /* default */
+                        temp &= ~FDI_LINK_TRAIN_NONE;
+                        temp |= FDI_LINK_TRAIN_PATTERN_1;
+                        I915_WRITE(fdi_tx_reg, temp);
+                        I915_READ(fdi_tx_reg);
 
-                temp = I915_READ(fdi_rx_reg);
-                temp &= ~FDI_LINK_TRAIN_NONE;
-                temp |= FDI_LINK_TRAIN_PATTERN_1;
-                I915_WRITE(fdi_rx_reg, temp | FDI_RX_ENABLE);
-                I915_READ(fdi_rx_reg);
+                        temp = I915_READ(fdi_rx_reg);
+                        temp &= ~FDI_LINK_TRAIN_NONE;
+                        temp |= FDI_LINK_TRAIN_PATTERN_1;
+                        I915_WRITE(fdi_rx_reg, temp | FDI_RX_ENABLE);
+                        I915_READ(fdi_rx_reg);
 
-                udelay(150);
+                        udelay(150);
 
-                /* Train FDI. */
-                /* umask FDI RX Interrupt symbol_lock and bit_lock bit
-                   for train result */
-                temp = I915_READ(fdi_rx_imr_reg);
-                temp &= ~FDI_RX_SYMBOL_LOCK;
-                temp &= ~FDI_RX_BIT_LOCK;
-                I915_WRITE(fdi_rx_imr_reg, temp);
-                I915_READ(fdi_rx_imr_reg);
-                udelay(150);
+                        /* Train FDI. */
+                        /* umask FDI RX Interrupt symbol_lock and bit_lock bit
+                           for train result */
+                        temp = I915_READ(fdi_rx_imr_reg);
+                        temp &= ~FDI_RX_SYMBOL_LOCK;
+                        temp &= ~FDI_RX_BIT_LOCK;
+                        I915_WRITE(fdi_rx_imr_reg, temp);
+                        I915_READ(fdi_rx_imr_reg);
+                        udelay(150);
 
-                temp = I915_READ(fdi_rx_iir_reg);
-                DRM_DEBUG("FDI_RX_IIR 0x%x\n", temp);
+                        temp = I915_READ(fdi_rx_iir_reg);
+                        DRM_DEBUG("FDI_RX_IIR 0x%x\n", temp);
 
-                if ((temp & FDI_RX_BIT_LOCK) == 0) {
-                        for (j = 0; j < tries; j++) {
-                                temp = I915_READ(fdi_rx_iir_reg);
-                                DRM_DEBUG("FDI_RX_IIR 0x%x\n", temp);
-                                if (temp & FDI_RX_BIT_LOCK)
-                                        break;
-                                udelay(200);
-                        }
-                        if (j != tries)
+                        if ((temp & FDI_RX_BIT_LOCK) == 0) {
+                                for (j = 0; j < tries; j++) {
+                                        temp = I915_READ(fdi_rx_iir_reg);
+                                        DRM_DEBUG("FDI_RX_IIR 0x%x\n", temp);
+                                        if (temp & FDI_RX_BIT_LOCK)
+                                                break;
+                                        udelay(200);
+                                }
+                                if (j != tries)
+                                        I915_WRITE(fdi_rx_iir_reg,
+                                                        temp | FDI_RX_BIT_LOCK);
+                                else
+                                        DRM_DEBUG("train 1 fail\n");
+                        } else {
                                 I915_WRITE(fdi_rx_iir_reg,
                                                 temp | FDI_RX_BIT_LOCK);
-                        else
-                                DRM_DEBUG("train 1 fail\n");
-                } else {
-                        I915_WRITE(fdi_rx_iir_reg,
-                                        temp | FDI_RX_BIT_LOCK);
-                        DRM_DEBUG("train 1 ok 2!\n");
-                }
-                temp = I915_READ(fdi_tx_reg);
-                temp &= ~FDI_LINK_TRAIN_NONE;
-                temp |= FDI_LINK_TRAIN_PATTERN_2;
-                I915_WRITE(fdi_tx_reg, temp);
-
-                temp = I915_READ(fdi_rx_reg);
-                temp &= ~FDI_LINK_TRAIN_NONE;
-                temp |= FDI_LINK_TRAIN_PATTERN_2;
-                I915_WRITE(fdi_rx_reg, temp);
+                                DRM_DEBUG("train 1 ok 2!\n");
+                        }
+                        temp = I915_READ(fdi_tx_reg);
+                        temp &= ~FDI_LINK_TRAIN_NONE;
+                        temp |= FDI_LINK_TRAIN_PATTERN_2;
+                        I915_WRITE(fdi_tx_reg, temp);
+
+                        temp = I915_READ(fdi_rx_reg);
+                        temp &= ~FDI_LINK_TRAIN_NONE;
+                        temp |= FDI_LINK_TRAIN_PATTERN_2;
+                        I915_WRITE(fdi_rx_reg, temp);
 
-                udelay(150);
+                        udelay(150);
 
-                temp = I915_READ(fdi_rx_iir_reg);
-                DRM_DEBUG("FDI_RX_IIR 0x%x\n", temp);
+                        temp = I915_READ(fdi_rx_iir_reg);
+                        DRM_DEBUG("FDI_RX_IIR 0x%x\n", temp);
 
-                if ((temp & FDI_RX_SYMBOL_LOCK) == 0) {
-                        for (j = 0; j < tries; j++) {
-                                temp = I915_READ(fdi_rx_iir_reg);
-                                DRM_DEBUG("FDI_RX_IIR 0x%x\n", temp);
-                                if (temp & FDI_RX_SYMBOL_LOCK)
-                                        break;
-                                udelay(200);
-                        }
-                        if (j != tries) {
+                        if ((temp & FDI_RX_SYMBOL_LOCK) == 0) {
+                                for (j = 0; j < tries; j++) {
+                                        temp = I915_READ(fdi_rx_iir_reg);
+                                        DRM_DEBUG("FDI_RX_IIR 0x%x\n", temp);
+                                        if (temp & FDI_RX_SYMBOL_LOCK)
+                                                break;
+                                        udelay(200);
+                                }
+                                if (j != tries) {
+                                        I915_WRITE(fdi_rx_iir_reg,
+                                                        temp | FDI_RX_SYMBOL_LOCK);
+                                        DRM_DEBUG("train 2 ok 1!\n");
+                                } else
+                                        DRM_DEBUG("train 2 fail\n");
+                        } else {
                                 I915_WRITE(fdi_rx_iir_reg,
                                                 temp | FDI_RX_SYMBOL_LOCK);
-                                DRM_DEBUG("train 2 ok 1!\n");
-                        } else
-                                DRM_DEBUG("train 2 fail\n");
-                } else {
-                        I915_WRITE(fdi_rx_iir_reg, temp | FDI_RX_SYMBOL_LOCK);
-                        DRM_DEBUG("train 2 ok 2!\n");
-                }
-                DRM_DEBUG("train done\n");
+                                DRM_DEBUG("train 2 ok 2!\n");
+                        }
+                        DRM_DEBUG("train done\n");
 
-                /* set transcoder timing */
-                I915_WRITE(trans_htot_reg, I915_READ(cpu_htot_reg));
-                I915_WRITE(trans_hblank_reg, I915_READ(cpu_hblank_reg));
-                I915_WRITE(trans_hsync_reg, I915_READ(cpu_hsync_reg));
+                        /* set transcoder timing */
+                        I915_WRITE(trans_htot_reg, I915_READ(cpu_htot_reg));
+                        I915_WRITE(trans_hblank_reg, I915_READ(cpu_hblank_reg));
+                        I915_WRITE(trans_hsync_reg, I915_READ(cpu_hsync_reg));
 
-                I915_WRITE(trans_vtot_reg, I915_READ(cpu_vtot_reg));
-                I915_WRITE(trans_vblank_reg, I915_READ(cpu_vblank_reg));
-                I915_WRITE(trans_vsync_reg, I915_READ(cpu_vsync_reg));
+                        I915_WRITE(trans_vtot_reg, I915_READ(cpu_vtot_reg));
+                        I915_WRITE(trans_vblank_reg, I915_READ(cpu_vblank_reg));
+                        I915_WRITE(trans_vsync_reg, I915_READ(cpu_vsync_reg));
 
-                /* enable PCH transcoder */
-                temp = I915_READ(transconf_reg);
-                I915_WRITE(transconf_reg, temp | TRANS_ENABLE);
-                I915_READ(transconf_reg);
+                        /* enable PCH transcoder */
+                        temp = I915_READ(transconf_reg);
+                        I915_WRITE(transconf_reg, temp | TRANS_ENABLE);
+                        I915_READ(transconf_reg);
 
-                while ((I915_READ(transconf_reg) & TRANS_STATE_ENABLE) == 0)
-                        ;
+                        while ((I915_READ(transconf_reg) & TRANS_STATE_ENABLE) == 0)
+                                ;
 
-                /* enable normal */
+                        /* enable normal */
 
-                temp = I915_READ(fdi_tx_reg);
-                temp &= ~FDI_LINK_TRAIN_NONE;
-                I915_WRITE(fdi_tx_reg, temp | FDI_LINK_TRAIN_NONE |
-                                FDI_TX_ENHANCE_FRAME_ENABLE);
-                I915_READ(fdi_tx_reg);
+                        temp = I915_READ(fdi_tx_reg);
+                        temp &= ~FDI_LINK_TRAIN_NONE;
+                        I915_WRITE(fdi_tx_reg, temp | FDI_LINK_TRAIN_NONE |
+                                        FDI_TX_ENHANCE_FRAME_ENABLE);
+                        I915_READ(fdi_tx_reg);
 
-                temp = I915_READ(fdi_rx_reg);
-                temp &= ~FDI_LINK_TRAIN_NONE;
-                I915_WRITE(fdi_rx_reg, temp | FDI_LINK_TRAIN_NONE |
-                                FDI_RX_ENHANCE_FRAME_ENABLE);
-                I915_READ(fdi_rx_reg);
+                        temp = I915_READ(fdi_rx_reg);
+                        temp &= ~FDI_LINK_TRAIN_NONE;
+                        I915_WRITE(fdi_rx_reg, temp | FDI_LINK_TRAIN_NONE |
+                                        FDI_RX_ENHANCE_FRAME_ENABLE);
+                        I915_READ(fdi_rx_reg);
 
-                /* wait one idle pattern time */
-                udelay(100);
+                        /* wait one idle pattern time */
+                        udelay(100);
+
+                }
 
                 intel_crtc_load_lut(crtc);
 
@@ -1129,8 +1348,7 @@ static void igdng_crtc_dpms(struct drm_crtc *crtc, int mode)
         case DRM_MODE_DPMS_OFF:
                 DRM_DEBUG("crtc %d dpms off\n", pipe);
 
-                /* Disable the VGA plane that we never use */
-                I915_WRITE(CPU_VGACNTRL, VGA_DISP_DISABLE);
+                i915_disable_vga(dev);
 
                 /* Disable display plane */
                 temp = I915_READ(dspcntr_reg);
@@ -1146,17 +1364,23 @@ static void igdng_crtc_dpms(struct drm_crtc *crtc, int mode)
                 if ((temp & PIPEACONF_ENABLE) != 0) {
                         I915_WRITE(pipeconf_reg, temp & ~PIPEACONF_ENABLE);
                         I915_READ(pipeconf_reg);
+                        n = 0;
                         /* wait for cpu pipe off, pipe state */
-                        while ((I915_READ(pipeconf_reg) & I965_PIPECONF_ACTIVE) != 0)
-                                ;
+                        while ((I915_READ(pipeconf_reg) & I965_PIPECONF_ACTIVE) != 0) {
+                                n++;
+                                if (n < 60) {
+                                        udelay(500);
+                                        continue;
+                                } else {
+                                        DRM_DEBUG("pipe %d off delay\n", pipe);
+                                        break;
+                                }
+                        }
                 } else
                         DRM_DEBUG("crtc %d is disabled\n", pipe);
 
-                /* IGDNG-A : disable cpu panel fitter ? */
-                temp = I915_READ(pf_ctl_reg);
-                if ((temp & PF_ENABLE) != 0) {
-                        I915_WRITE(pf_ctl_reg, temp & ~PF_ENABLE);
-                        I915_READ(pf_ctl_reg);
+                if (HAS_eDP) {
+                        igdng_disable_pll_edp(crtc);
                 }
 
                 /* disable CPU FDI tx and PCH FDI rx */
@@ -1168,6 +1392,8 @@ static void igdng_crtc_dpms(struct drm_crtc *crtc, int mode)
                 I915_WRITE(fdi_rx_reg, temp & ~FDI_RX_ENABLE);
                 I915_READ(fdi_rx_reg);
 
+                udelay(100);
+
                 /* still set train pattern 1 */
                 temp = I915_READ(fdi_tx_reg);
                 temp &= ~FDI_LINK_TRAIN_NONE;
@@ -1179,14 +1405,25 @@ static void igdng_crtc_dpms(struct drm_crtc *crtc, int mode)
                 temp |= FDI_LINK_TRAIN_PATTERN_1;
                 I915_WRITE(fdi_rx_reg, temp);
 
+                udelay(100);
+
                 /* disable PCH transcoder */
                 temp = I915_READ(transconf_reg);
                 if ((temp & TRANS_ENABLE) != 0) {
                         I915_WRITE(transconf_reg, temp & ~TRANS_ENABLE);
                         I915_READ(transconf_reg);
+                        n = 0;
                         /* wait for PCH transcoder off, transcoder state */
-                        while ((I915_READ(transconf_reg) & TRANS_STATE_ENABLE) != 0)
-                                ;
+                        while ((I915_READ(transconf_reg) & TRANS_STATE_ENABLE) != 0) {
+                                n++;
+                                if (n < 60) {
+                                        udelay(500);
+                                        continue;
+                                } else {
+                                        DRM_DEBUG("transcoder %d off delay\n", pipe);
+                                        break;
+                                }
+                        }
                 }
 
                 /* disable PCH DPLL */
@@ -1204,6 +1441,22 @@ static void igdng_crtc_dpms(struct drm_crtc *crtc, int mode)
                         I915_READ(fdi_rx_reg);
                 }
 
+                /* Disable CPU FDI TX PLL */
+                temp = I915_READ(fdi_tx_reg);
+                if ((temp & FDI_TX_PLL_ENABLE) != 0) {
+                        I915_WRITE(fdi_tx_reg, temp & ~FDI_TX_PLL_ENABLE);
+                        I915_READ(fdi_tx_reg);
+                        udelay(100);
+                }
+
+                /* Disable PF */
+                temp = I915_READ(pf_ctl_reg);
+                if ((temp & PF_ENABLE) != 0) {
+                        I915_WRITE(pf_ctl_reg, temp & ~PF_ENABLE);
+                        I915_READ(pf_ctl_reg);
+                }
+                I915_WRITE(pf_win_size, 0);
+
                 /* Wait for the clocks to turn off. */
                 udelay(150);
                 break;
@@ -1263,13 +1516,15 @@ static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode)
 
                 /* Give the overlay scaler a chance to enable if it's on this pipe */
                 //intel_crtc_dpms_video(crtc, true); TODO
+                intel_update_watermarks(dev);
         break;
         case DRM_MODE_DPMS_OFF:
+                intel_update_watermarks(dev);
                 /* Give the overlay scaler a chance to disable if it's on this pipe */
                 //intel_crtc_dpms_video(crtc, FALSE); TODO
 
                 /* Disable the VGA plane that we never use */
-                I915_WRITE(VGACNTRL, VGA_DISP_DISABLE);
+                i915_disable_vga(dev);
 
                 /* Disable display plane */
                 temp = I915_READ(dspcntr_reg);
@@ -1443,7 +1698,6 @@ static int intel_get_core_clock_speed(struct drm_device *dev)
         return 0; /* Silence gcc warning */
 }
 
-
 /**
  * Return the pipe currently connected to the panel fitter,
  * or -1 if the panel fitter is not present or not in use
@@ -1502,7 +1756,7 @@ igdng_compute_m_n(int bytes_per_pixel, int nlanes,
 
         temp = (u64) DATA_N * pixel_clock;
         temp = div_u64(temp, link_clock);
-        m_n->gmch_m = (temp * bytes_per_pixel) / nlanes;
+        m_n->gmch_m = div_u64(temp * bytes_per_pixel, nlanes);
         m_n->gmch_n = DATA_N;
         fdi_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n);
 
@@ -1513,6 +1767,464 @@ igdng_compute_m_n(int bytes_per_pixel, int nlanes,
 }
 
 
+struct intel_watermark_params {
+        unsigned long fifo_size;
+        unsigned long max_wm;
+        unsigned long default_wm;
+        unsigned long guard_size;
+        unsigned long cacheline_size;
+};
+
+/* IGD has different values for various configs */
+static struct intel_watermark_params igd_display_wm = {
+        IGD_DISPLAY_FIFO,
+        IGD_MAX_WM,
+        IGD_DFT_WM,
+        IGD_GUARD_WM,
+        IGD_FIFO_LINE_SIZE
+};
+static struct intel_watermark_params igd_display_hplloff_wm = {
+        IGD_DISPLAY_FIFO,
+        IGD_MAX_WM,
+        IGD_DFT_HPLLOFF_WM,
+        IGD_GUARD_WM,
+        IGD_FIFO_LINE_SIZE
+};
+static struct intel_watermark_params igd_cursor_wm = {
+        IGD_CURSOR_FIFO,
+        IGD_CURSOR_MAX_WM,
+        IGD_CURSOR_DFT_WM,
+        IGD_CURSOR_GUARD_WM,
+        IGD_FIFO_LINE_SIZE,
+};
+static struct intel_watermark_params igd_cursor_hplloff_wm = {
+        IGD_CURSOR_FIFO,
+        IGD_CURSOR_MAX_WM,
+        IGD_CURSOR_DFT_WM,
+        IGD_CURSOR_GUARD_WM,
+        IGD_FIFO_LINE_SIZE
+};
+static struct intel_watermark_params i945_wm_info = {
+        I945_FIFO_SIZE,
+        I915_MAX_WM,
+        1,
+        2,
+        I915_FIFO_LINE_SIZE
+};
+static struct intel_watermark_params i915_wm_info = {
+        I915_FIFO_SIZE,
+        I915_MAX_WM,
+        1,
+        2,
+        I915_FIFO_LINE_SIZE
+};
+static struct intel_watermark_params i855_wm_info = {
+        I855GM_FIFO_SIZE,
+        I915_MAX_WM,
+        1,
+        2,
+        I830_FIFO_LINE_SIZE
+};
+static struct intel_watermark_params i830_wm_info = {
+        I830_FIFO_SIZE,
+        I915_MAX_WM,
+        1,
+        2,
+        I830_FIFO_LINE_SIZE
+};
+
+/**
+ * intel_calculate_wm - calculate watermark level
+ * @clock_in_khz: pixel clock
+ * @wm: chip FIFO params
+ * @pixel_size: display pixel size
+ * @latency_ns: memory latency for the platform
+ *
+ * Calculate the watermark level (the level at which the display plane will
+ * start fetching from memory again).  Each chip has a different display
+ * FIFO size and allocation, so the caller needs to figure that out and pass
+ * in the correct intel_watermark_params structure.
+ *
+ * As the pixel clock runs, the FIFO will be drained at a rate that depends
+ * on the pixel size.  When it reaches the watermark level, it'll start
+ * fetching FIFO line sized based chunks from memory until the FIFO fills
+ * past the watermark point.  If the FIFO drains completely, a FIFO underrun
+ * will occur, and a display engine hang could result.
+ */
+static unsigned long intel_calculate_wm(unsigned long clock_in_khz,
+                                        struct intel_watermark_params *wm,
+                                        int pixel_size,
+                                        unsigned long latency_ns)
+{
+        long entries_required, wm_size;
+
+        entries_required = (clock_in_khz * pixel_size * latency_ns) / 1000000;
+        entries_required /= wm->cacheline_size;
+
+        DRM_DEBUG("FIFO entries required for mode: %d\n", entries_required);
+
+        wm_size = wm->fifo_size - (entries_required + wm->guard_size);
+
+        DRM_DEBUG("FIFO watermark level: %d\n", wm_size);
+
+        /* Don't promote wm_size to unsigned... */
+        if (wm_size > (long)wm->max_wm)
+                wm_size = wm->max_wm;
+        if (wm_size <= 0)
+                wm_size = wm->default_wm;
+        return wm_size;
+}
+
+struct cxsr_latency {
+        int is_desktop;
+        unsigned long fsb_freq;
+        unsigned long mem_freq;
+        unsigned long display_sr;
+        unsigned long display_hpll_disable;
+        unsigned long cursor_sr;
+        unsigned long cursor_hpll_disable;
+};
+
+static struct cxsr_latency cxsr_latency_table[] = {
+        {1, 800, 400, 3382, 33382, 3983, 33983},    /* DDR2-400 SC */
+        {1, 800, 667, 3354, 33354, 3807, 33807},    /* DDR2-667 SC */
+        {1, 800, 800, 3347, 33347, 3763, 33763},    /* DDR2-800 SC */
+
+        {1, 667, 400, 3400, 33400, 4021, 34021},    /* DDR2-400 SC */
+        {1, 667, 667, 3372, 33372, 3845, 33845},    /* DDR2-667 SC */
+        {1, 667, 800, 3386, 33386, 3822, 33822},    /* DDR2-800 SC */
+
+        {1, 400, 400, 3472, 33472, 4173, 34173},    /* DDR2-400 SC */
+        {1, 400, 667, 3443, 33443, 3996, 33996},    /* DDR2-667 SC */
+        {1, 400, 800, 3430, 33430, 3946, 33946},    /* DDR2-800 SC */
+
+        {0, 800, 400, 3438, 33438, 4065, 34065},    /* DDR2-400 SC */
+        {0, 800, 667, 3410, 33410, 3889, 33889},    /* DDR2-667 SC */
+        {0, 800, 800, 3403, 33403, 3845, 33845},    /* DDR2-800 SC */
+
+        {0, 667, 400, 3456, 33456, 4103, 34106},    /* DDR2-400 SC */
+        {0, 667, 667, 3428, 33428, 3927, 33927},    /* DDR2-667 SC */
+        {0, 667, 800, 3443, 33443, 3905, 33905},    /* DDR2-800 SC */
+
+        {0, 400, 400, 3528, 33528, 4255, 34255},    /* DDR2-400 SC */
+        {0, 400, 667, 3500, 33500, 4079, 34079},    /* DDR2-667 SC */
+        {0, 400, 800, 3487, 33487, 4029, 34029},    /* DDR2-800 SC */
+};
+
+static struct cxsr_latency *intel_get_cxsr_latency(int is_desktop, int fsb,
+                                                   int mem)
+{
+        int i;
+        struct cxsr_latency *latency;
+
+        if (fsb == 0 || mem == 0)
+                return NULL;
+
+        for (i = 0; i < ARRAY_SIZE(cxsr_latency_table); i++) {
+                latency = &cxsr_latency_table[i];
+                if (is_desktop == latency->is_desktop &&
+                        fsb == latency->fsb_freq && mem == latency->mem_freq)
+                        break;
+        }
+        if (i >= ARRAY_SIZE(cxsr_latency_table)) {
+                DRM_DEBUG("Unknown FSB/MEM found, disable CxSR\n");
+                return NULL;
+        }
+        return latency;
+}
+
+static void igd_disable_cxsr(struct drm_device *dev)
+{
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        u32 reg;
+
+        /* deactivate cxsr */
+        reg = I915_READ(DSPFW3);
+        reg &= ~(IGD_SELF_REFRESH_EN);
+        I915_WRITE(DSPFW3, reg);
+        DRM_INFO("Big FIFO is disabled\n");
+}
+
+static void igd_enable_cxsr(struct drm_device *dev, unsigned long clock,
+                            int pixel_size)
+{
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        u32 reg;
+        unsigned long wm;
+        struct cxsr_latency *latency;
+
+        latency = intel_get_cxsr_latency(IS_IGDG(dev), dev_priv->fsb_freq,
+                dev_priv->mem_freq);
+        if (!latency) {
+                DRM_DEBUG("Unknown FSB/MEM found, disable CxSR\n");
+                igd_disable_cxsr(dev);
+                return;
+        }
+
+        /* Display SR */
+        wm = intel_calculate_wm(clock, &igd_display_wm, pixel_size,
+                                latency->display_sr);
+        reg = I915_READ(DSPFW1);
+        reg &= 0x7fffff;
+        reg |= wm << 23;
+        I915_WRITE(DSPFW1, reg);
+        DRM_DEBUG("DSPFW1 register is %x\n", reg);
+
+        /* cursor SR */
+        wm = intel_calculate_wm(clock, &igd_cursor_wm, pixel_size,
+                                latency->cursor_sr);
+        reg = I915_READ(DSPFW3);
+        reg &= ~(0x3f << 24);
+        reg |= (wm & 0x3f) << 24;
+        I915_WRITE(DSPFW3, reg);
+
+        /* Display HPLL off SR */
+        wm = intel_calculate_wm(clock, &igd_display_hplloff_wm,
+                latency->display_hpll_disable, I915_FIFO_LINE_SIZE);
+        reg = I915_READ(DSPFW3);
+        reg &= 0xfffffe00;
+        reg |= wm & 0x1ff;
+        I915_WRITE(DSPFW3, reg);
+
+        /* cursor HPLL off SR */
+        wm = intel_calculate_wm(clock, &igd_cursor_hplloff_wm, pixel_size,
+                                latency->cursor_hpll_disable);
+        reg = I915_READ(DSPFW3);
+        reg &= ~(0x3f << 16);
+        reg |= (wm & 0x3f) << 16;
+        I915_WRITE(DSPFW3, reg);
+        DRM_DEBUG("DSPFW3 register is %x\n", reg);
+
+        /* activate cxsr */
+        reg = I915_READ(DSPFW3);
+        reg |= IGD_SELF_REFRESH_EN;
+        I915_WRITE(DSPFW3, reg);
+
+        DRM_INFO("Big FIFO is enabled\n");
+
+        return;
+}
+
+const static int latency_ns = 3000; /* default for non-igd platforms */
+
+static int intel_get_fifo_size(struct drm_device *dev, int plane)
+{
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        uint32_t dsparb = I915_READ(DSPARB);
+        int size;
+
+        if (IS_I9XX(dev)) {
+                if (plane == 0)
+                        size = dsparb & 0x7f;
+                else
+                        size = ((dsparb >> DSPARB_CSTART_SHIFT) & 0x7f) -
+                                (dsparb & 0x7f);
+        } else if (IS_I85X(dev)) {
+                if (plane == 0)
+                        size = dsparb & 0x1ff;
+                else
+                        size = ((dsparb >> DSPARB_BEND_SHIFT) & 0x1ff) -
+                                (dsparb & 0x1ff);
+                size >>= 1; /* Convert to cachelines */
+        } else if (IS_845G(dev)) {
+                size = dsparb & 0x7f;
+                size >>= 2; /* Convert to cachelines */
+        } else {
+                size = dsparb & 0x7f;
+                size >>= 1; /* Convert to cachelines */
+        }
+
+        DRM_DEBUG("FIFO size - (0x%08x) %s: %d\n", dsparb, plane ? "B" : "A",
+                  size);
+
+        return size;
+}
+
+static void i965_update_wm(struct drm_device *dev)
+{
+        struct drm_i915_private *dev_priv = dev->dev_private;
+
+        DRM_DEBUG("Setting FIFO watermarks - A: 8, B: 8, C: 8, SR 8\n");
+
+        /* 965 has limitations... */
+        I915_WRITE(DSPFW1, (8 << 16) | (8 << 8) | (8 << 0));
+        I915_WRITE(DSPFW2, (8 << 8) | (8 << 0));
+}
+
+static void i9xx_update_wm(struct drm_device *dev, int planea_clock,
+                           int planeb_clock, int sr_hdisplay, int pixel_size)
+{
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        uint32_t fwater_lo;
+        uint32_t fwater_hi;
+        int total_size, cacheline_size, cwm, srwm = 1;
+        int planea_wm, planeb_wm;
+        struct intel_watermark_params planea_params, planeb_params;
+        unsigned long line_time_us;
+        int sr_clock, sr_entries = 0;
+
+        /* Create copies of the base settings for each pipe */
+        if (IS_I965GM(dev) || IS_I945GM(dev))
+                planea_params = planeb_params = i945_wm_info;
+        else if (IS_I9XX(dev))
+                planea_params = planeb_params = i915_wm_info;
+        else
+                planea_params = planeb_params = i855_wm_info;
+
+        /* Grab a couple of global values before we overwrite them */
+        total_size = planea_params.fifo_size;
+        cacheline_size = planea_params.cacheline_size;
+
+        /* Update per-plane FIFO sizes */
+        planea_params.fifo_size = intel_get_fifo_size(dev, 0);
+        planeb_params.fifo_size = intel_get_fifo_size(dev, 1);
+
+        planea_wm = intel_calculate_wm(planea_clock, &planea_params,
+                                       pixel_size, latency_ns);
+        planeb_wm = intel_calculate_wm(planeb_clock, &planeb_params,
+                                       pixel_size, latency_ns);
+        DRM_DEBUG("FIFO watermarks - A: %d, B: %d\n", planea_wm, planeb_wm);
+
+        /*
+         * Overlay gets an aggressive default since video jitter is bad.
+         */
+        cwm = 2;
+
+        /* Calc sr entries for one plane configs */
+        if (sr_hdisplay && (!planea_clock || !planeb_clock)) {
+                /* self-refresh has much higher latency */
+                const static int sr_latency_ns = 6000;
+
+                sr_clock = planea_clock ? planea_clock : planeb_clock;
+                line_time_us = ((sr_hdisplay * 1000) / sr_clock);
+
+                /* Use ns/us then divide to preserve precision */
+                sr_entries = (((sr_latency_ns / line_time_us) + 1) *
+                              pixel_size * sr_hdisplay) / 1000;
+                sr_entries = roundup(sr_entries / cacheline_size, 1);
+                DRM_DEBUG("self-refresh entries: %d\n", sr_entries);
+                srwm = total_size - sr_entries;
+                if (srwm < 0)
+                        srwm = 1;
+                if (IS_I9XX(dev))
+                        I915_WRITE(FW_BLC_SELF, (srwm & 0x3f));
+        }
+
+        DRM_DEBUG("Setting FIFO watermarks - A: %d, B: %d, C: %d, SR %d\n",
+                  planea_wm, planeb_wm, cwm, srwm);
+
+        fwater_lo = ((planeb_wm & 0x3f) << 16) | (planea_wm & 0x3f);
+        fwater_hi = (cwm & 0x1f);
+
+        /* Set request length to 8 cachelines per fetch */
+        fwater_lo = fwater_lo | (1 << 24) | (1 << 8);
+        fwater_hi = fwater_hi | (1 << 8);
+
+        I915_WRITE(FW_BLC, fwater_lo);
+        I915_WRITE(FW_BLC2, fwater_hi);
+}
+
+static void i830_update_wm(struct drm_device *dev, int planea_clock,
+                           int pixel_size)
+{
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        uint32_t fwater_lo = I915_READ(FW_BLC) & ~0xfff;
+        int planea_wm;
+
+        i830_wm_info.fifo_size = intel_get_fifo_size(dev, 0);
+
+        planea_wm = intel_calculate_wm(planea_clock, &i830_wm_info,
+                                       pixel_size, latency_ns);
+        fwater_lo |= (3<<8) | planea_wm;
+
+        DRM_DEBUG("Setting FIFO watermarks - A: %d\n", planea_wm);
+
+        I915_WRITE(FW_BLC, fwater_lo);
+}
+
+/**
+ * intel_update_watermarks - update FIFO watermark values based on current modes
+ *
+ * Calculate watermark values for the various WM regs based on current mode
+ * and plane configuration.
+ *
+ * There are several cases to deal with here:
+ *   - normal (i.e. non-self-refresh)
+ *   - self-refresh (SR) mode
+ *   - lines are large relative to FIFO size (buffer can hold up to 2)
+ *   - lines are small relative to FIFO size (buffer can hold more than 2
+ *     lines), so need to account for TLB latency
+ *
+ *   The normal calculation is:
+ *     watermark = dotclock * bytes per pixel * latency
+ *   where latency is platform & configuration dependent (we assume pessimal
+ *   values here).
+ *
+ *   The SR calculation is:
+ *     watermark = (trunc(latency/line time)+1) * surface width *
+ *       bytes per pixel
+ *   where
+ *     line time = htotal / dotclock
+ *   and latency is assumed to be high, as above.
+ *
+ * The final value programmed to the register should always be rounded up,
+ * and include an extra 2 entries to account for clock crossings.
+ *
+ * We don't use the sprite, so we can ignore that.  And on Crestline we have
+ * to set the non-SR watermarks to 8.
+  */
+static void intel_update_watermarks(struct drm_device *dev)
+{
+        struct drm_crtc *crtc;
+        struct intel_crtc *intel_crtc;
+        int sr_hdisplay = 0;
+        unsigned long planea_clock = 0, planeb_clock = 0, sr_clock = 0;
+        int enabled = 0, pixel_size = 0;
+
+        if (DSPARB_HWCONTROL(dev))
+                return;
+
+        /* Get the clock config from both planes */
+        list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+                intel_crtc = to_intel_crtc(crtc);
+                if (crtc->enabled) {
+                        enabled++;
+                        if (intel_crtc->plane == 0) {
+                                DRM_DEBUG("plane A (pipe %d) clock: %d\n",
+                                          intel_crtc->pipe, crtc->mode.clock);
+                                planea_clock = crtc->mode.clock;
+                        } else {
+                                DRM_DEBUG("plane B (pipe %d) clock: %d\n",
+                                          intel_crtc->pipe, crtc->mode.clock);
+                                planeb_clock = crtc->mode.clock;
+                        }
+                        sr_hdisplay = crtc->mode.hdisplay;
+                        sr_clock = crtc->mode.clock;
+                        if (crtc->fb)
+                                pixel_size = crtc->fb->bits_per_pixel / 8;
+                        else
+                                pixel_size = 4; /* by default */
+                }
+        }
+
+        if (enabled <= 0)
+                return;
+
+        /* Single plane configs can enable self refresh */
+        if (enabled == 1 && IS_IGD(dev))
+                igd_enable_cxsr(dev, sr_clock, pixel_size);
+        else if (IS_IGD(dev))
+                igd_disable_cxsr(dev);
+
+        if (IS_I965G(dev))
+                i965_update_wm(dev);
+        else if (IS_I9XX(dev) || IS_MOBILE(dev))
+                i9xx_update_wm(dev, planea_clock, planeb_clock, sr_hdisplay,
+                               pixel_size);
+        else
+                i830_update_wm(dev, planea_clock, pixel_size);
+}
+
 static int intel_crtc_mode_set(struct drm_crtc *crtc,
                                struct drm_display_mode *mode,
                                struct drm_display_mode *adjusted_mode,
@@ -1541,7 +2253,8 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
         intel_clock_t clock;
         u32 dpll = 0, fp = 0, dspcntr, pipeconf;
         bool ok, is_sdvo = false, is_dvo = false;
-        bool is_crt = false, is_lvds = false, is_tv = false;
+        bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false;
+        bool is_edp = false;
         struct drm_mode_config *mode_config = &dev->mode_config;
         struct drm_connector *connector;
         const intel_limit_t *limit;
@@ -1557,6 +2270,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
         int lvds_reg = LVDS;
         u32 temp;
         int sdvo_pixel_multiply;
+        int target_clock;
 
         drm_vblank_pre_modeset(dev, pipe);
 
@@ -1585,6 +2299,12 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
                 case INTEL_OUTPUT_ANALOG:
                         is_crt = true;
                         break;
+                case INTEL_OUTPUT_DISPLAYPORT:
+                        is_dp = true;
+                        break;
+                case INTEL_OUTPUT_EDP:
+                        is_edp = true;
+                        break;
                 }
 
                 num_outputs++;
@@ -1600,6 +2320,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
         } else {
                 refclk = 48000;
         }
+        
 
         /*
          * Returns a set of divisors for the desired target clock with the given
@@ -1635,11 +2356,29 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
         }
 
         /* FDI link */
-        if (IS_IGDNG(dev))
-                igdng_compute_m_n(3, 4, /* lane num 4 */
-                                adjusted_mode->clock,
-                                270000, /* lane clock */
-                                &m_n);
+        if (IS_IGDNG(dev)) {
+                int lane, link_bw;
+                /* eDP doesn't require FDI link, so just set DP M/N
+                   according to current link config */
+                if (is_edp) {
+                        struct drm_connector *edp;
+                        target_clock = mode->clock;
+                        edp = intel_pipe_get_output(crtc);
+                        intel_edp_link_config(to_intel_output(edp),
+                                        &lane, &link_bw);
+                } else {
+                        /* DP over FDI requires target mode clock
+                           instead of link clock */
+                        if (is_dp)
+                                target_clock = mode->clock;
+                        else
+                                target_clock = adjusted_mode->clock;
+                        lane = 4;
+                        link_bw = 270000;
+                }
+                igdng_compute_m_n(3, lane, target_clock,
+                                  link_bw, &m_n);
+        }
 
         if (IS_IGD(dev))
                 fp = (1 << clock.n) << 16 | clock.m1 << 8 | clock.m2;
@@ -1662,6 +2401,8 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
                         else if (IS_IGDNG(dev))
                                 dpll |= (sdvo_pixel_multiply - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT;
                 }
+                if (is_dp)
+                        dpll |= DPLL_DVO_HIGH_SPEED;
 
                 /* compute bitmask from p1 value */
                 if (IS_IGD(dev))
@@ -1758,29 +2499,15 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
                 dpll_reg = pch_dpll_reg;
         }
 
-        if (dpll & DPLL_VCO_ENABLE) {
+        if (is_edp) {
+                igdng_disable_pll_edp(crtc);
+        } else if ((dpll & DPLL_VCO_ENABLE)) {
                 I915_WRITE(fp_reg, fp);
                 I915_WRITE(dpll_reg, dpll & ~DPLL_VCO_ENABLE);
                 I915_READ(dpll_reg);
                 udelay(150);
         }
 
-        if (IS_IGDNG(dev)) {
-                /* enable PCH clock reference source */
-                /* XXX need to change the setting for other outputs */
-                u32 temp;
-                temp = I915_READ(PCH_DREF_CONTROL);
-                temp &= ~DREF_NONSPREAD_SOURCE_MASK;
-                temp |= DREF_NONSPREAD_CK505_ENABLE;
-                temp &= ~DREF_SSC_SOURCE_MASK;
-                temp |= DREF_SSC_SOURCE_ENABLE;
-                temp &= ~DREF_SSC1_ENABLE;
-                /* if no eDP, disable source output to CPU */
-                temp &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
-                temp |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
-                I915_WRITE(PCH_DREF_CONTROL, temp);
-        }
-
         /* The LVDS pin pair needs to be on before the DPLLs are enabled.
          * This is an exception to the general rule that mode_set doesn't turn
          * things on.
@@ -1809,24 +2536,28 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
                 I915_WRITE(lvds_reg, lvds);
                 I915_READ(lvds_reg);
         }
+        if (is_dp)
+                intel_dp_set_m_n(crtc, mode, adjusted_mode);
 
-        I915_WRITE(fp_reg, fp);
-        I915_WRITE(dpll_reg, dpll);
-        I915_READ(dpll_reg);
-        /* Wait for the clocks to stabilize. */
-        udelay(150);
-
-        if (IS_I965G(dev) && !IS_IGDNG(dev)) {
-                sdvo_pixel_multiply = adjusted_mode->clock / mode->clock;
-                I915_WRITE(dpll_md_reg, (0 << DPLL_MD_UDI_DIVIDER_SHIFT) |
-                           ((sdvo_pixel_multiply - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT));
-        } else {
-                /* write it again -- the BIOS does, after all */
+        if (!is_edp) {
+                I915_WRITE(fp_reg, fp);
                 I915_WRITE(dpll_reg, dpll);
+                I915_READ(dpll_reg);
+                /* Wait for the clocks to stabilize. */
+                udelay(150);
+
+                if (IS_I965G(dev) && !IS_IGDNG(dev)) {
+                        sdvo_pixel_multiply = adjusted_mode->clock / mode->clock;
+                        I915_WRITE(dpll_md_reg, (0 << DPLL_MD_UDI_DIVIDER_SHIFT) |
+                                        ((sdvo_pixel_multiply - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT));
+                } else {
+                        /* write it again -- the BIOS does, after all */
+                        I915_WRITE(dpll_reg, dpll);
+                }
+                I915_READ(dpll_reg);
+                /* Wait for the clocks to stabilize. */
+                udelay(150);
         }
-        I915_READ(dpll_reg);
-        /* Wait for the clocks to stabilize. */
-        udelay(150);
 
         I915_WRITE(htot_reg, (adjusted_mode->crtc_hdisplay - 1) |
                    ((adjusted_mode->crtc_htotal - 1) << 16));
@@ -1856,10 +2587,14 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
                 I915_WRITE(link_m1_reg, m_n.link_m);
                 I915_WRITE(link_n1_reg, m_n.link_n);
 
-                 /* enable FDI RX PLL too */
-                temp = I915_READ(fdi_rx_reg);
-                I915_WRITE(fdi_rx_reg, temp | FDI_RX_PLL_ENABLE);
-                udelay(200);
+                if (is_edp) {
+                        igdng_set_pll_edp(crtc, adjusted_mode->clock);
+                } else {
+                        /* enable FDI RX PLL too */
+                        temp = I915_READ(fdi_rx_reg);
+                        I915_WRITE(fdi_rx_reg, temp | FDI_RX_PLL_ENABLE);
+                        udelay(200);
+                }
         }
 
         I915_WRITE(pipeconf_reg, pipeconf);
@@ -1871,6 +2606,9 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
 
         /* Flush the plane changes */
         ret = intel_pipe_set_base(crtc, x, y, old_fb);
+
+        intel_update_watermarks(dev);
+
         drm_vblank_post_modeset(dev, pipe);
 
         return ret;
@@ -2359,6 +3097,7 @@ static void intel_crtc_init(struct drm_device *dev, int pipe)
 
         drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256);
         intel_crtc->pipe = pipe;
+        intel_crtc->plane = pipe;
         for (i = 0; i < 256; i++) {
                 intel_crtc->lut_r[i] = i;
                 intel_crtc->lut_g[i] = i;
@@ -2453,12 +3192,17 @@ static void intel_setup_outputs(struct drm_device *dev)
         if (IS_IGDNG(dev)) {
                 int found;
 
+                if (IS_MOBILE(dev) && (I915_READ(DP_A) & DP_DETECTED))
+                        intel_dp_init(dev, DP_A);
+
                 if (I915_READ(HDMIB) & PORT_DETECTED) {
                         /* check SDVOB */
                         /* found = intel_sdvo_init(dev, HDMIB); */
                         found = 0;
                         if (!found)
                                 intel_hdmi_init(dev, HDMIB);
+                        if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED))
+                                intel_dp_init(dev, PCH_DP_B);
                 }
 
                 if (I915_READ(HDMIC) & PORT_DETECTED)
@@ -2467,6 +3211,12 @@ static void intel_setup_outputs(struct drm_device *dev)
                 if (I915_READ(HDMID) & PORT_DETECTED)
                         intel_hdmi_init(dev, HDMID);
 
+                if (I915_READ(PCH_DP_C) & DP_DETECTED)
+                        intel_dp_init(dev, PCH_DP_C);
+
+                if (I915_READ(PCH_DP_D) & DP_DETECTED)
+                        intel_dp_init(dev, PCH_DP_D);
+
         } else if (IS_I9XX(dev)) {
                 int found;
                 u32 reg;
@@ -2475,6 +3225,8 @@ static void intel_setup_outputs(struct drm_device *dev)
                         found = intel_sdvo_init(dev, SDVOB);
                         if (!found && SUPPORTS_INTEGRATED_HDMI(dev))
                                 intel_hdmi_init(dev, SDVOB);
+                        if (!found && SUPPORTS_INTEGRATED_DP(dev))
+                                intel_dp_init(dev, DP_B);
                 }
 
                 /* Before G4X SDVOC doesn't have its own detect register */
@@ -2487,7 +3239,11 @@ static void intel_setup_outputs(struct drm_device *dev)
                         found = intel_sdvo_init(dev, SDVOC);
                         if (!found && SUPPORTS_INTEGRATED_HDMI(dev))
                                 intel_hdmi_init(dev, SDVOC);
+                        if (!found && SUPPORTS_INTEGRATED_DP(dev))
+                                intel_dp_init(dev, DP_C);
                 }
+                if (SUPPORTS_INTEGRATED_DP(dev) && (I915_READ(DP_D) & DP_DETECTED))
+                        intel_dp_init(dev, DP_D);
         } else
                 intel_dvo_init(dev);
 
@@ -2530,6 +3286,15 @@ static void intel_setup_outputs(struct drm_device *dev)
                                      (1 << 1));
                         clone_mask = (1 << INTEL_OUTPUT_TVOUT);
                         break;
+                case INTEL_OUTPUT_DISPLAYPORT:
+                        crtc_mask = ((1 << 0) |
+                                     (1 << 1));
+                        clone_mask = (1 << INTEL_OUTPUT_DISPLAYPORT);
+                        break;
+                case INTEL_OUTPUT_EDP:
+                        crtc_mask = (1 << 1);
+                        clone_mask = (1 << INTEL_OUTPUT_EDP);
+                        break;
                 }
                 encoder->possible_crtcs = crtc_mask;
                 encoder->possible_clones = intel_connector_clones(dev, clone_mask);
@@ -2639,6 +3404,9 @@ void intel_modeset_init(struct drm_device *dev)
         if (IS_I965G(dev)) {
                 dev->mode_config.max_width = 8192;
                 dev->mode_config.max_height = 8192;
+        } else if (IS_I9XX(dev)) {
+                dev->mode_config.max_width = 4096;
+                dev->mode_config.max_height = 4096;
         } else {
                 dev->mode_config.max_width = 2048;
                 dev->mode_config.max_height = 2048;
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
new file mode 100644
index 000000000000..a6ff15ac548a
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -0,0 +1,1318 @@
+/*
+ * Copyright © 2008 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Packard <keithp@keithp.com>
+ *
+ */
+
+#include <linux/i2c.h>
+#include "drmP.h"
+#include "drm.h"
+#include "drm_crtc.h"
+#include "drm_crtc_helper.h"
+#include "intel_drv.h"
+#include "i915_drm.h"
+#include "i915_drv.h"
+#include "intel_dp.h"
+
+#define DP_LINK_STATUS_SIZE     6
+#define DP_LINK_CHECK_TIMEOUT   (10 * 1000)
+
+#define DP_LINK_CONFIGURATION_SIZE      9
+
+#define IS_eDP(i) ((i)->type == INTEL_OUTPUT_EDP)
+
+struct intel_dp_priv {
+        uint32_t output_reg;
+        uint32_t DP;
+        uint8_t  link_configuration[DP_LINK_CONFIGURATION_SIZE];
+        uint32_t save_DP;
+        uint8_t  save_link_configuration[DP_LINK_CONFIGURATION_SIZE];
+        bool has_audio;
+        int dpms_mode;
+        uint8_t link_bw;
+        uint8_t lane_count;
+        uint8_t dpcd[4];
+        struct intel_output *intel_output;
+        struct i2c_adapter adapter;
+        struct i2c_algo_dp_aux_data algo;
+};
+
+static void
+intel_dp_link_train(struct intel_output *intel_output, uint32_t DP,
+                    uint8_t link_configuration[DP_LINK_CONFIGURATION_SIZE]);
+
+static void
+intel_dp_link_down(struct intel_output *intel_output, uint32_t DP);
+
+void
+intel_edp_link_config (struct intel_output *intel_output,
+                int *lane_num, int *link_bw)
+{
+        struct intel_dp_priv   *dp_priv = intel_output->dev_priv;
+
+        *lane_num = dp_priv->lane_count;
+        if (dp_priv->link_bw == DP_LINK_BW_1_62)
+                *link_bw = 162000;
+        else if (dp_priv->link_bw == DP_LINK_BW_2_7)
+                *link_bw = 270000;
+}
+
+static int
+intel_dp_max_lane_count(struct intel_output *intel_output)
+{
+        struct intel_dp_priv   *dp_priv = intel_output->dev_priv;
+        int max_lane_count = 4;
+
+        if (dp_priv->dpcd[0] >= 0x11) {
+                max_lane_count = dp_priv->dpcd[2] & 0x1f;
+                switch (max_lane_count) {
+                case 1: case 2: case 4:
+                        break;
+                default:
+                        max_lane_count = 4;
+                }
+        }
+        return max_lane_count;
+}
+
+static int
+intel_dp_max_link_bw(struct intel_output *intel_output)
+{
+        struct intel_dp_priv   *dp_priv = intel_output->dev_priv;
+        int max_link_bw = dp_priv->dpcd[1];
+
+        switch (max_link_bw) {
+        case DP_LINK_BW_1_62:
+        case DP_LINK_BW_2_7:
+                break;
+        default:
+                max_link_bw = DP_LINK_BW_1_62;
+                break;
+        }
+        return max_link_bw;
+}
+
+static int
+intel_dp_link_clock(uint8_t link_bw)
+{
+        if (link_bw == DP_LINK_BW_2_7)
+                return 270000;
+        else
+                return 162000;
+}
+
+/* I think this is a fiction */
+static int
+intel_dp_link_required(int pixel_clock)
+{
+        return pixel_clock * 3;
+}
+
+static int
+intel_dp_mode_valid(struct drm_connector *connector,
+                    struct drm_display_mode *mode)
+{
+        struct intel_output *intel_output = to_intel_output(connector);
+        int max_link_clock = intel_dp_link_clock(intel_dp_max_link_bw(intel_output));
+        int max_lanes = intel_dp_max_lane_count(intel_output);
+
+        if (intel_dp_link_required(mode->clock) > max_link_clock * max_lanes)
+                return MODE_CLOCK_HIGH;
+
+        if (mode->clock < 10000)
+                return MODE_CLOCK_LOW;
+
+        return MODE_OK;
+}
+
+static uint32_t
+pack_aux(uint8_t *src, int src_bytes)
+{
+        int     i;
+        uint32_t v = 0;
+
+        if (src_bytes > 4)
+                src_bytes = 4;
+        for (i = 0; i < src_bytes; i++)
+                v |= ((uint32_t) src[i]) << ((3-i) * 8);
+        return v;
+}
+
+static void
+unpack_aux(uint32_t src, uint8_t *dst, int dst_bytes)
+{
+        int i;
+        if (dst_bytes > 4)
+                dst_bytes = 4;
+        for (i = 0; i < dst_bytes; i++)
+                dst[i] = src >> ((3-i) * 8);
+}
+
+/* hrawclock is 1/4 the FSB frequency */
+static int
+intel_hrawclk(struct drm_device *dev)
+{
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        uint32_t clkcfg;
+
+        clkcfg = I915_READ(CLKCFG);
+        switch (clkcfg & CLKCFG_FSB_MASK) {
+        case CLKCFG_FSB_400:
+                return 100;
+        case CLKCFG_FSB_533:
+                return 133;
+        case CLKCFG_FSB_667:
+                return 166;
+        case CLKCFG_FSB_800:
+                return 200;
+        case CLKCFG_FSB_1067:
+                return 266;
+        case CLKCFG_FSB_1333:
+                return 333;
+        /* these two are just a guess; one of them might be right */
+        case CLKCFG_FSB_1600:
+        case CLKCFG_FSB_1600_ALT:
+                return 400;
+        default:
+                return 133;
+        }
+}
+
+static int
+intel_dp_aux_ch(struct intel_output *intel_output,
+                uint8_t *send, int send_bytes,
+                uint8_t *recv, int recv_size)
+{
+        struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+        uint32_t output_reg = dp_priv->output_reg;
+        struct drm_device *dev = intel_output->base.dev;
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        uint32_t ch_ctl = output_reg + 0x10;
+        uint32_t ch_data = ch_ctl + 4;
+        int i;
+        int recv_bytes;
+        uint32_t ctl;
+        uint32_t status;
+        uint32_t aux_clock_divider;
+        int try;
+
+        /* The clock divider is based off the hrawclk,
+         * and would like to run at 2MHz. So, take the
+         * hrawclk value and divide by 2 and use that
+         */
+        if (IS_eDP(intel_output))
+                aux_clock_divider = 225; /* eDP input clock at 450Mhz */
+        else if (IS_IGDNG(dev))
+                aux_clock_divider = 62; /* IGDNG: input clock fixed at 125Mhz */
+        else
+                aux_clock_divider = intel_hrawclk(dev) / 2;
+
+        /* Must try at least 3 times according to DP spec */
+        for (try = 0; try < 5; try++) {
+                /* Load the send data into the aux channel data registers */
+                for (i = 0; i < send_bytes; i += 4) {
+                        uint32_t    d = pack_aux(send + i, send_bytes - i);;
+        
+                        I915_WRITE(ch_data + i, d);
+                }
+        
+                ctl = (DP_AUX_CH_CTL_SEND_BUSY |
+                       DP_AUX_CH_CTL_TIME_OUT_400us |
+                       (send_bytes << DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT) |
+                       (5 << DP_AUX_CH_CTL_PRECHARGE_2US_SHIFT) |
+                       (aux_clock_divider << DP_AUX_CH_CTL_BIT_CLOCK_2X_SHIFT) |
+                       DP_AUX_CH_CTL_DONE |
+                       DP_AUX_CH_CTL_TIME_OUT_ERROR |
+                       DP_AUX_CH_CTL_RECEIVE_ERROR);
+        
+                /* Send the command and wait for it to complete */
+                I915_WRITE(ch_ctl, ctl);
+                (void) I915_READ(ch_ctl);
+                for (;;) {
+                        udelay(100);
+                        status = I915_READ(ch_ctl);
+                        if ((status & DP_AUX_CH_CTL_SEND_BUSY) == 0)
+                                break;
+                }
+        
+                /* Clear done status and any errors */
+                I915_WRITE(ch_ctl, (status |
+                                DP_AUX_CH_CTL_DONE |
+                                DP_AUX_CH_CTL_TIME_OUT_ERROR |
+                                DP_AUX_CH_CTL_RECEIVE_ERROR));
+                (void) I915_READ(ch_ctl);
+                if ((status & DP_AUX_CH_CTL_TIME_OUT_ERROR) == 0)
+                        break;
+        }
+
+        if ((status & DP_AUX_CH_CTL_DONE) == 0) {
+                DRM_ERROR("dp_aux_ch not done status 0x%08x\n", status);
+                return -EBUSY;
+        }
+
+        /* Check for timeout or receive error.
+         * Timeouts occur when the sink is not connected
+         */
+        if (status & DP_AUX_CH_CTL_RECEIVE_ERROR) {
+                DRM_ERROR("dp_aux_ch receive error status 0x%08x\n", status);
+                return -EIO;
+        }
+
+        /* Timeouts occur when the device isn't connected, so they're
+         * "normal" -- don't fill the kernel log with these */
+        if (status & DP_AUX_CH_CTL_TIME_OUT_ERROR) {
+                DRM_DEBUG("dp_aux_ch timeout status 0x%08x\n", status);
+                return -ETIMEDOUT;
+        }
+
+        /* Unload any bytes sent back from the other side */
+        recv_bytes = ((status & DP_AUX_CH_CTL_MESSAGE_SIZE_MASK) >>
+                      DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT);
+
+        if (recv_bytes > recv_size)
+                recv_bytes = recv_size;
+        
+        for (i = 0; i < recv_bytes; i += 4) {
+                uint32_t    d = I915_READ(ch_data + i);
+
+                unpack_aux(d, recv + i, recv_bytes - i);
+        }
+
+        return recv_bytes;
+}
+
+/* Write data to the aux channel in native mode */
+static int
+intel_dp_aux_native_write(struct intel_output *intel_output,
+                          uint16_t address, uint8_t *send, int send_bytes)
+{
+        int ret;
+        uint8_t msg[20];
+        int msg_bytes;
+        uint8_t ack;
+
+        if (send_bytes > 16)
+                return -1;
+        msg[0] = AUX_NATIVE_WRITE << 4;
+        msg[1] = address >> 8;
+        msg[2] = address & 0xff;
+        msg[3] = send_bytes - 1;
+        memcpy(&msg[4], send, send_bytes);
+        msg_bytes = send_bytes + 4;
+        for (;;) {
+                ret = intel_dp_aux_ch(intel_output, msg, msg_bytes, &ack, 1);
+                if (ret < 0)
+                        return ret;
+                if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_ACK)
+                        break;
+                else if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_DEFER)
+                        udelay(100);
+                else
+                        return -EIO;
+        }
+        return send_bytes;
+}
+
+/* Write a single byte to the aux channel in native mode */
+static int
+intel_dp_aux_native_write_1(struct intel_output *intel_output,
+                            uint16_t address, uint8_t byte)
+{
+        return intel_dp_aux_native_write(intel_output, address, &byte, 1);
+}
+
+/* read bytes from a native aux channel */
+static int
+intel_dp_aux_native_read(struct intel_output *intel_output,
+                         uint16_t address, uint8_t *recv, int recv_bytes)
+{
+        uint8_t msg[4];
+        int msg_bytes;
+        uint8_t reply[20];
+        int reply_bytes;
+        uint8_t ack;
+        int ret;
+
+        msg[0] = AUX_NATIVE_READ << 4;
+        msg[1] = address >> 8;
+        msg[2] = address & 0xff;
+        msg[3] = recv_bytes - 1;
+
+        msg_bytes = 4;
+        reply_bytes = recv_bytes + 1;
+
+        for (;;) {
+                ret = intel_dp_aux_ch(intel_output, msg, msg_bytes,
+                                      reply, reply_bytes);
+                if (ret == 0)
+                        return -EPROTO;
+                if (ret < 0)
+                        return ret;
+                ack = reply[0];
+                if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_ACK) {
+                        memcpy(recv, reply + 1, ret - 1);
+                        return ret - 1;
+                }
+                else if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_DEFER)
+                        udelay(100);
+                else
+                        return -EIO;
+        }
+}
+
+static int
+intel_dp_i2c_aux_ch(struct i2c_adapter *adapter,
+                    uint8_t *send, int send_bytes,
+                    uint8_t *recv, int recv_bytes)
+{
+        struct intel_dp_priv *dp_priv = container_of(adapter,
+                                                     struct intel_dp_priv,
+                                                     adapter);
+        struct intel_output *intel_output = dp_priv->intel_output;
+
+        return intel_dp_aux_ch(intel_output,
+                               send, send_bytes, recv, recv_bytes);
+}
+
+static int
+intel_dp_i2c_init(struct intel_output *intel_output, const char *name)
+{
+        struct intel_dp_priv   *dp_priv = intel_output->dev_priv;
+
+        DRM_ERROR("i2c_init %s\n", name);
+        dp_priv->algo.running = false;
+        dp_priv->algo.address = 0;
+        dp_priv->algo.aux_ch = intel_dp_i2c_aux_ch;
+
+        memset(&dp_priv->adapter, '\0', sizeof (dp_priv->adapter));
+        dp_priv->adapter.owner = THIS_MODULE;
+        dp_priv->adapter.class = I2C_CLASS_DDC;
+        strncpy (dp_priv->adapter.name, name, sizeof(dp_priv->adapter.name) - 1);
+        dp_priv->adapter.name[sizeof(dp_priv->adapter.name) - 1] = '\0';
+        dp_priv->adapter.algo_data = &dp_priv->algo;
+        dp_priv->adapter.dev.parent = &intel_output->base.kdev;
+        
+        return i2c_dp_aux_add_bus(&dp_priv->adapter);
+}
+
+static bool
+intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
+                    struct drm_display_mode *adjusted_mode)
+{
+        struct intel_output *intel_output = enc_to_intel_output(encoder);
+        struct intel_dp_priv   *dp_priv = intel_output->dev_priv;
+        int lane_count, clock;
+        int max_lane_count = intel_dp_max_lane_count(intel_output);
+        int max_clock = intel_dp_max_link_bw(intel_output) == DP_LINK_BW_2_7 ? 1 : 0;
+        static int bws[2] = { DP_LINK_BW_1_62, DP_LINK_BW_2_7 };
+
+        for (lane_count = 1; lane_count <= max_lane_count; lane_count <<= 1) {
+                for (clock = 0; clock <= max_clock; clock++) {
+                        int link_avail = intel_dp_link_clock(bws[clock]) * lane_count;
+
+                        if (intel_dp_link_required(mode->clock) <= link_avail) {
+                                dp_priv->link_bw = bws[clock];
+                                dp_priv->lane_count = lane_count;
+                                adjusted_mode->clock = intel_dp_link_clock(dp_priv->link_bw);
+                                DRM_DEBUG("Display port link bw %02x lane count %d clock %d\n",
+                                       dp_priv->link_bw, dp_priv->lane_count,
+                                       adjusted_mode->clock);
+                                return true;
+                        }
+                }
+        }
+        return false;
+}
+
+struct intel_dp_m_n {
+        uint32_t        tu;
+        uint32_t        gmch_m;
+        uint32_t        gmch_n;
+        uint32_t        link_m;
+        uint32_t        link_n;
+};
+
+static void
+intel_reduce_ratio(uint32_t *num, uint32_t *den)
+{
+        while (*num > 0xffffff || *den > 0xffffff) {
+                *num >>= 1;
+                *den >>= 1;
+        }
+}
+
+static void
+intel_dp_compute_m_n(int bytes_per_pixel,
+                     int nlanes,
+                     int pixel_clock,
+                     int link_clock,
+                     struct intel_dp_m_n *m_n)
+{
+        m_n->tu = 64;
+        m_n->gmch_m = pixel_clock * bytes_per_pixel;
+        m_n->gmch_n = link_clock * nlanes;
+        intel_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n);
+        m_n->link_m = pixel_clock;
+        m_n->link_n = link_clock;
+        intel_reduce_ratio(&m_n->link_m, &m_n->link_n);
+}
+
+void
+intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode,
+                 struct drm_display_mode *adjusted_mode)
+{
+        struct drm_device *dev = crtc->dev;
+        struct drm_mode_config *mode_config = &dev->mode_config;
+        struct drm_connector *connector;
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+        int lane_count = 4;
+        struct intel_dp_m_n m_n;
+
+        /*
+         * Find the lane count in the intel_output private
+         */
+        list_for_each_entry(connector, &mode_config->connector_list, head) {
+                struct intel_output *intel_output = to_intel_output(connector);
+                struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+
+                if (!connector->encoder || connector->encoder->crtc != crtc)
+                        continue;
+
+                if (intel_output->type == INTEL_OUTPUT_DISPLAYPORT) {
+                        lane_count = dp_priv->lane_count;
+                        break;
+                }
+        }
+
+        /*
+         * Compute the GMCH and Link ratios. The '3' here is
+         * the number of bytes_per_pixel post-LUT, which we always
+         * set up for 8-bits of R/G/B, or 3 bytes total.
+         */
+        intel_dp_compute_m_n(3, lane_count,
+                             mode->clock, adjusted_mode->clock, &m_n);
+
+        if (IS_IGDNG(dev)) {
+                if (intel_crtc->pipe == 0) {
+                        I915_WRITE(TRANSA_DATA_M1,
+                                   ((m_n.tu - 1) << PIPE_GMCH_DATA_M_TU_SIZE_SHIFT) |
+                                   m_n.gmch_m);
+                        I915_WRITE(TRANSA_DATA_N1, m_n.gmch_n);
+                        I915_WRITE(TRANSA_DP_LINK_M1, m_n.link_m);
+                        I915_WRITE(TRANSA_DP_LINK_N1, m_n.link_n);
+                } else {
+                        I915_WRITE(TRANSB_DATA_M1,
+                                   ((m_n.tu - 1) << PIPE_GMCH_DATA_M_TU_SIZE_SHIFT) |
+                                   m_n.gmch_m);
+                        I915_WRITE(TRANSB_DATA_N1, m_n.gmch_n);
+                        I915_WRITE(TRANSB_DP_LINK_M1, m_n.link_m);
+                        I915_WRITE(TRANSB_DP_LINK_N1, m_n.link_n);
+                }
+        } else {
+                if (intel_crtc->pipe == 0) {
+                        I915_WRITE(PIPEA_GMCH_DATA_M,
+                                   ((m_n.tu - 1) << PIPE_GMCH_DATA_M_TU_SIZE_SHIFT) |
+                                   m_n.gmch_m);
+                        I915_WRITE(PIPEA_GMCH_DATA_N,
+                                   m_n.gmch_n);
+                        I915_WRITE(PIPEA_DP_LINK_M, m_n.link_m);
+                        I915_WRITE(PIPEA_DP_LINK_N, m_n.link_n);
+                } else {
+                        I915_WRITE(PIPEB_GMCH_DATA_M,
+                                   ((m_n.tu - 1) << PIPE_GMCH_DATA_M_TU_SIZE_SHIFT) |
+                                   m_n.gmch_m);
+                        I915_WRITE(PIPEB_GMCH_DATA_N,
+                                        m_n.gmch_n);
+                        I915_WRITE(PIPEB_DP_LINK_M, m_n.link_m);
+                        I915_WRITE(PIPEB_DP_LINK_N, m_n.link_n);
+                }
+        }
+}
+
+static void
+intel_dp_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
+                  struct drm_display_mode *adjusted_mode)
+{
+        struct intel_output *intel_output = enc_to_intel_output(encoder);
+        struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+        struct drm_crtc *crtc = intel_output->enc.crtc;
+        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+
+        dp_priv->DP = (DP_LINK_TRAIN_OFF |
+                        DP_VOLTAGE_0_4 |
+                        DP_PRE_EMPHASIS_0 |
+                        DP_SYNC_VS_HIGH |
+                        DP_SYNC_HS_HIGH);
+
+        switch (dp_priv->lane_count) {
+        case 1:
+                dp_priv->DP |= DP_PORT_WIDTH_1;
+                break;
+        case 2:
+                dp_priv->DP |= DP_PORT_WIDTH_2;
+                break;
+        case 4:
+                dp_priv->DP |= DP_PORT_WIDTH_4;
+                break;
+        }
+        if (dp_priv->has_audio)
+                dp_priv->DP |= DP_AUDIO_OUTPUT_ENABLE;
+
+        memset(dp_priv->link_configuration, 0, DP_LINK_CONFIGURATION_SIZE);
+        dp_priv->link_configuration[0] = dp_priv->link_bw;
+        dp_priv->link_configuration[1] = dp_priv->lane_count;
+
+        /*
+         * Check for DPCD version > 1.1,
+         * enable enahanced frame stuff in that case
+         */
+        if (dp_priv->dpcd[0] >= 0x11) {
+                dp_priv->link_configuration[1] |= DP_LANE_COUNT_ENHANCED_FRAME_EN;
+                dp_priv->DP |= DP_ENHANCED_FRAMING;
+        }
+
+        if (intel_crtc->pipe == 1)
+                dp_priv->DP |= DP_PIPEB_SELECT;
+
+        if (IS_eDP(intel_output)) {
+                /* don't miss out required setting for eDP */
+                dp_priv->DP |= DP_PLL_ENABLE;
+                if (adjusted_mode->clock < 200000)
+                        dp_priv->DP |= DP_PLL_FREQ_160MHZ;
+                else
+                        dp_priv->DP |= DP_PLL_FREQ_270MHZ;
+        }
+}
+
+static void igdng_edp_backlight_on (struct drm_device *dev)
+{
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        u32 pp;
+
+        DRM_DEBUG("\n");
+        pp = I915_READ(PCH_PP_CONTROL);
+        pp |= EDP_BLC_ENABLE;
+        I915_WRITE(PCH_PP_CONTROL, pp);
+}
+
+static void igdng_edp_backlight_off (struct drm_device *dev)
+{
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        u32 pp;
+
+        DRM_DEBUG("\n");
+        pp = I915_READ(PCH_PP_CONTROL);
+        pp &= ~EDP_BLC_ENABLE;
+        I915_WRITE(PCH_PP_CONTROL, pp);
+}
+
+static void
+intel_dp_dpms(struct drm_encoder *encoder, int mode)
+{
+        struct intel_output *intel_output = enc_to_intel_output(encoder);
+        struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+        struct drm_device *dev = intel_output->base.dev;
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        uint32_t dp_reg = I915_READ(dp_priv->output_reg);
+
+        if (mode != DRM_MODE_DPMS_ON) {
+                if (dp_reg & DP_PORT_EN) {
+                        intel_dp_link_down(intel_output, dp_priv->DP);
+                        if (IS_eDP(intel_output))
+                                igdng_edp_backlight_off(dev);
+                }
+        } else {
+                if (!(dp_reg & DP_PORT_EN)) {
+                        intel_dp_link_train(intel_output, dp_priv->DP, dp_priv->link_configuration);
+                        if (IS_eDP(intel_output))
+                                igdng_edp_backlight_on(dev);
+                }
+        }
+        dp_priv->dpms_mode = mode;
+}
+
+/*
+ * Fetch AUX CH registers 0x202 - 0x207 which contain
+ * link status information
+ */
+static bool
+intel_dp_get_link_status(struct intel_output *intel_output,
+                         uint8_t link_status[DP_LINK_STATUS_SIZE])
+{
+        int ret;
+
+        ret = intel_dp_aux_native_read(intel_output,
+                                       DP_LANE0_1_STATUS,
+                                       link_status, DP_LINK_STATUS_SIZE);
+        if (ret != DP_LINK_STATUS_SIZE)
+                return false;
+        return true;
+}
+
+static uint8_t
+intel_dp_link_status(uint8_t link_status[DP_LINK_STATUS_SIZE],
+                     int r)
+{
+        return link_status[r - DP_LANE0_1_STATUS];
+}
+
+static void
+intel_dp_save(struct drm_connector *connector)
+{
+        struct intel_output *intel_output = to_intel_output(connector);
+        struct drm_device *dev = intel_output->base.dev;
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+
+        dp_priv->save_DP = I915_READ(dp_priv->output_reg);
+        intel_dp_aux_native_read(intel_output, DP_LINK_BW_SET,
+                                 dp_priv->save_link_configuration,
+                                 sizeof (dp_priv->save_link_configuration));
+}
+
+static uint8_t
+intel_get_adjust_request_voltage(uint8_t link_status[DP_LINK_STATUS_SIZE],
+                                 int lane)
+{
+        int         i = DP_ADJUST_REQUEST_LANE0_1 + (lane >> 1);
+        int         s = ((lane & 1) ?
+                         DP_ADJUST_VOLTAGE_SWING_LANE1_SHIFT :
+                         DP_ADJUST_VOLTAGE_SWING_LANE0_SHIFT);
+        uint8_t l = intel_dp_link_status(link_status, i);
+
+        return ((l >> s) & 3) << DP_TRAIN_VOLTAGE_SWING_SHIFT;
+}
+
+static uint8_t
+intel_get_adjust_request_pre_emphasis(uint8_t link_status[DP_LINK_STATUS_SIZE],
+                                      int lane)
+{
+        int         i = DP_ADJUST_REQUEST_LANE0_1 + (lane >> 1);
+        int         s = ((lane & 1) ?
+                         DP_ADJUST_PRE_EMPHASIS_LANE1_SHIFT :
+                         DP_ADJUST_PRE_EMPHASIS_LANE0_SHIFT);
+        uint8_t l = intel_dp_link_status(link_status, i);
+
+        return ((l >> s) & 3) << DP_TRAIN_PRE_EMPHASIS_SHIFT;
+}
+
+
+#if 0
+static char     *voltage_names[] = {
+        "0.4V", "0.6V", "0.8V", "1.2V"
+};
+static char     *pre_emph_names[] = {
+        "0dB", "3.5dB", "6dB", "9.5dB"
+};
+static char     *link_train_names[] = {
+        "pattern 1", "pattern 2", "idle", "off"
+};
+#endif
+
+/*
+ * These are source-specific values; current Intel hardware supports
+ * a maximum voltage of 800mV and a maximum pre-emphasis of 6dB
+ */
+#define I830_DP_VOLTAGE_MAX         DP_TRAIN_VOLTAGE_SWING_800
+
+static uint8_t
+intel_dp_pre_emphasis_max(uint8_t voltage_swing)
+{
+        switch (voltage_swing & DP_TRAIN_VOLTAGE_SWING_MASK) {
+        case DP_TRAIN_VOLTAGE_SWING_400:
+                return DP_TRAIN_PRE_EMPHASIS_6;
+        case DP_TRAIN_VOLTAGE_SWING_600:
+                return DP_TRAIN_PRE_EMPHASIS_6;
+        case DP_TRAIN_VOLTAGE_SWING_800:
+                return DP_TRAIN_PRE_EMPHASIS_3_5;
+        case DP_TRAIN_VOLTAGE_SWING_1200:
+        default:
+                return DP_TRAIN_PRE_EMPHASIS_0;
+        }
+}
+
+static void
+intel_get_adjust_train(struct intel_output *intel_output,
+                       uint8_t link_status[DP_LINK_STATUS_SIZE],
+                       int lane_count,
+                       uint8_t train_set[4])
+{
+        uint8_t v = 0;
+        uint8_t p = 0;
+        int lane;
+
+        for (lane = 0; lane < lane_count; lane++) {
+                uint8_t this_v = intel_get_adjust_request_voltage(link_status, lane);
+                uint8_t this_p = intel_get_adjust_request_pre_emphasis(link_status, lane);
+
+                if (this_v > v)
+                        v = this_v;
+                if (this_p > p)
+                        p = this_p;
+        }
+
+        if (v >= I830_DP_VOLTAGE_MAX)
+                v = I830_DP_VOLTAGE_MAX | DP_TRAIN_MAX_SWING_REACHED;
+
+        if (p >= intel_dp_pre_emphasis_max(v))
+                p = intel_dp_pre_emphasis_max(v) | DP_TRAIN_MAX_PRE_EMPHASIS_REACHED;
+
+        for (lane = 0; lane < 4; lane++)
+                train_set[lane] = v | p;
+}
+
+static uint32_t
+intel_dp_signal_levels(uint8_t train_set, int lane_count)
+{
+        uint32_t        signal_levels = 0;
+
+        switch (train_set & DP_TRAIN_VOLTAGE_SWING_MASK) {
+        case DP_TRAIN_VOLTAGE_SWING_400:
+        default:
+                signal_levels |= DP_VOLTAGE_0_4;
+                break;
+        case DP_TRAIN_VOLTAGE_SWING_600:
+                signal_levels |= DP_VOLTAGE_0_6;
+                break;
+        case DP_TRAIN_VOLTAGE_SWING_800:
+                signal_levels |= DP_VOLTAGE_0_8;
+                break;
+        case DP_TRAIN_VOLTAGE_SWING_1200:
+                signal_levels |= DP_VOLTAGE_1_2;
+                break;
+        }
+        switch (train_set & DP_TRAIN_PRE_EMPHASIS_MASK) {
+        case DP_TRAIN_PRE_EMPHASIS_0:
+        default:
+                signal_levels |= DP_PRE_EMPHASIS_0;
+                break;
+        case DP_TRAIN_PRE_EMPHASIS_3_5:
+                signal_levels |= DP_PRE_EMPHASIS_3_5;
+                break;
+        case DP_TRAIN_PRE_EMPHASIS_6:
+                signal_levels |= DP_PRE_EMPHASIS_6;
+                break;
+        case DP_TRAIN_PRE_EMPHASIS_9_5:
+                signal_levels |= DP_PRE_EMPHASIS_9_5;
+                break;
+        }
+        return signal_levels;
+}
+
+static uint8_t
+intel_get_lane_status(uint8_t link_status[DP_LINK_STATUS_SIZE],
+                      int lane)
+{
+        int i = DP_LANE0_1_STATUS + (lane >> 1);
+        int s = (lane & 1) * 4;
+        uint8_t l = intel_dp_link_status(link_status, i);
+
+        return (l >> s) & 0xf;
+}
+
+/* Check for clock recovery is done on all channels */
+static bool
+intel_clock_recovery_ok(uint8_t link_status[DP_LINK_STATUS_SIZE], int lane_count)
+{
+        int lane;
+        uint8_t lane_status;
+
+        for (lane = 0; lane < lane_count; lane++) {
+                lane_status = intel_get_lane_status(link_status, lane);
+                if ((lane_status & DP_LANE_CR_DONE) == 0)
+                        return false;
+        }
+        return true;
+}
+
+/* Check to see if channel eq is done on all channels */
+#define CHANNEL_EQ_BITS (DP_LANE_CR_DONE|\
+                         DP_LANE_CHANNEL_EQ_DONE|\
+                         DP_LANE_SYMBOL_LOCKED)
+static bool
+intel_channel_eq_ok(uint8_t link_status[DP_LINK_STATUS_SIZE], int lane_count)
+{
+        uint8_t lane_align;
+        uint8_t lane_status;
+        int lane;
+
+        lane_align = intel_dp_link_status(link_status,
+                                          DP_LANE_ALIGN_STATUS_UPDATED);
+        if ((lane_align & DP_INTERLANE_ALIGN_DONE) == 0)
+                return false;
+        for (lane = 0; lane < lane_count; lane++) {
+                lane_status = intel_get_lane_status(link_status, lane);
+                if ((lane_status & CHANNEL_EQ_BITS) != CHANNEL_EQ_BITS)
+                        return false;
+        }
+        return true;
+}
+
+static bool
+intel_dp_set_link_train(struct intel_output *intel_output,
+                        uint32_t dp_reg_value,
+                        uint8_t dp_train_pat,
+                        uint8_t train_set[4],
+                        bool first)
+{
+        struct drm_device *dev = intel_output->base.dev;
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+        int ret;
+
+        I915_WRITE(dp_priv->output_reg, dp_reg_value);
+        POSTING_READ(dp_priv->output_reg);
+        if (first)
+                intel_wait_for_vblank(dev);
+
+        intel_dp_aux_native_write_1(intel_output,
+                                    DP_TRAINING_PATTERN_SET,
+                                    dp_train_pat);
+
+        ret = intel_dp_aux_native_write(intel_output,
+                                        DP_TRAINING_LANE0_SET, train_set, 4);
+        if (ret != 4)
+                return false;
+
+        return true;
+}
+
+static void
+intel_dp_link_train(struct intel_output *intel_output, uint32_t DP,
+                    uint8_t link_configuration[DP_LINK_CONFIGURATION_SIZE])
+{
+        struct drm_device *dev = intel_output->base.dev;
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+        uint8_t train_set[4];
+        uint8_t link_status[DP_LINK_STATUS_SIZE];
+        int i;
+        uint8_t voltage;
+        bool clock_recovery = false;
+        bool channel_eq = false;
+        bool first = true;
+        int tries;
+
+        /* Write the link configuration data */
+        intel_dp_aux_native_write(intel_output, 0x100,
+                                  link_configuration, DP_LINK_CONFIGURATION_SIZE);
+
+        DP |= DP_PORT_EN;
+        DP &= ~DP_LINK_TRAIN_MASK;
+        memset(train_set, 0, 4);
+        voltage = 0xff;
+        tries = 0;
+        clock_recovery = false;
+        for (;;) {
+                /* Use train_set[0] to set the voltage and pre emphasis values */
+                uint32_t    signal_levels = intel_dp_signal_levels(train_set[0], dp_priv->lane_count);
+                DP = (DP & ~(DP_VOLTAGE_MASK|DP_PRE_EMPHASIS_MASK)) | signal_levels;
+
+                if (!intel_dp_set_link_train(intel_output, DP | DP_LINK_TRAIN_PAT_1,
+                                             DP_TRAINING_PATTERN_1, train_set, first))
+                        break;
+                first = false;
+                /* Set training pattern 1 */
+
+                udelay(100);
+                if (!intel_dp_get_link_status(intel_output, link_status))
+                        break;
+
+                if (intel_clock_recovery_ok(link_status, dp_priv->lane_count)) {
+                        clock_recovery = true;
+                        break;
+                }
+
+                /* Check to see if we've tried the max voltage */
+                for (i = 0; i < dp_priv->lane_count; i++)
+                        if ((train_set[i] & DP_TRAIN_MAX_SWING_REACHED) == 0)
+                                break;
+                if (i == dp_priv->lane_count)
+                        break;
+
+                /* Check to see if we've tried the same voltage 5 times */
+                if ((train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK) == voltage) {
+                        ++tries;
+                        if (tries == 5)
+                                break;
+                } else
+                        tries = 0;
+                voltage = train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK;
+
+                /* Compute new train_set as requested by target */
+                intel_get_adjust_train(intel_output, link_status, dp_priv->lane_count, train_set);
+        }
+
+        /* channel equalization */
+        tries = 0;
+        channel_eq = false;
+        for (;;) {
+                /* Use train_set[0] to set the voltage and pre emphasis values */
+                uint32_t    signal_levels = intel_dp_signal_levels(train_set[0], dp_priv->lane_count);
+                DP = (DP & ~(DP_VOLTAGE_MASK|DP_PRE_EMPHASIS_MASK)) | signal_levels;
+
+                /* channel eq pattern */
+                if (!intel_dp_set_link_train(intel_output, DP | DP_LINK_TRAIN_PAT_2,
+                                             DP_TRAINING_PATTERN_2, train_set,
+                                             false))
+                        break;
+
+                udelay(400);
+                if (!intel_dp_get_link_status(intel_output, link_status))
+                        break;
+
+                if (intel_channel_eq_ok(link_status, dp_priv->lane_count)) {
+                        channel_eq = true;
+                        break;
+                }
+
+                /* Try 5 times */
+                if (tries > 5)
+                        break;
+
+                /* Compute new train_set as requested by target */
+                intel_get_adjust_train(intel_output, link_status, dp_priv->lane_count, train_set);
+                ++tries;
+        }
+
+        I915_WRITE(dp_priv->output_reg, DP | DP_LINK_TRAIN_OFF);
+        POSTING_READ(dp_priv->output_reg);
+        intel_dp_aux_native_write_1(intel_output,
+                                    DP_TRAINING_PATTERN_SET, DP_TRAINING_PATTERN_DISABLE);
+}
+
+static void
+intel_dp_link_down(struct intel_output *intel_output, uint32_t DP)
+{
+        struct drm_device *dev = intel_output->base.dev;
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+
+        DRM_DEBUG("\n");
+
+        if (IS_eDP(intel_output)) {
+                DP &= ~DP_PLL_ENABLE;
+                I915_WRITE(dp_priv->output_reg, DP);
+                POSTING_READ(dp_priv->output_reg);
+                udelay(100);
+        }
+
+        DP &= ~DP_LINK_TRAIN_MASK;
+        I915_WRITE(dp_priv->output_reg, DP | DP_LINK_TRAIN_PAT_IDLE);
+        POSTING_READ(dp_priv->output_reg);
+
+        udelay(17000);
+
+        if (IS_eDP(intel_output))
+                DP |= DP_LINK_TRAIN_OFF;
+        I915_WRITE(dp_priv->output_reg, DP & ~DP_PORT_EN);
+        POSTING_READ(dp_priv->output_reg);
+}
+
+static void
+intel_dp_restore(struct drm_connector *connector)
+{
+        struct intel_output *intel_output = to_intel_output(connector);
+        struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+
+        if (dp_priv->save_DP & DP_PORT_EN)
+                intel_dp_link_train(intel_output, dp_priv->save_DP, dp_priv->save_link_configuration);
+        else
+                intel_dp_link_down(intel_output,  dp_priv->save_DP);
+}
+
+/*
+ * According to DP spec
+ * 5.1.2:
+ *  1. Read DPCD
+ *  2. Configure link according to Receiver Capabilities
+ *  3. Use Link Training from 2.5.3.3 and 3.5.1.3
+ *  4. Check link status on receipt of hot-plug interrupt
+ */
+
+static void
+intel_dp_check_link_status(struct intel_output *intel_output)
+{
+        struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+        uint8_t link_status[DP_LINK_STATUS_SIZE];
+
+        if (!intel_output->enc.crtc)
+                return;
+
+        if (!intel_dp_get_link_status(intel_output, link_status)) {
+                intel_dp_link_down(intel_output, dp_priv->DP);
+                return;
+        }
+
+        if (!intel_channel_eq_ok(link_status, dp_priv->lane_count))
+                intel_dp_link_train(intel_output, dp_priv->DP, dp_priv->link_configuration);
+}
+
+static enum drm_connector_status
+igdng_dp_detect(struct drm_connector *connector)
+{
+        struct intel_output *intel_output = to_intel_output(connector);
+        struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+        enum drm_connector_status status;
+
+        status = connector_status_disconnected;
+        if (intel_dp_aux_native_read(intel_output,
+                                     0x000, dp_priv->dpcd,
+                                     sizeof (dp_priv->dpcd)) == sizeof (dp_priv->dpcd))
+        {
+                if (dp_priv->dpcd[0] != 0)
+                        status = connector_status_connected;
+        }
+        return status;
+}
+
+/**
+ * Uses CRT_HOTPLUG_EN and CRT_HOTPLUG_STAT to detect DP connection.
+ *
+ * \return true if DP port is connected.
+ * \return false if DP port is disconnected.
+ */
+static enum drm_connector_status
+intel_dp_detect(struct drm_connector *connector)
+{
+        struct intel_output *intel_output = to_intel_output(connector);
+        struct drm_device *dev = intel_output->base.dev;
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+        uint32_t temp, bit;
+        enum drm_connector_status status;
+
+        dp_priv->has_audio = false;
+
+        if (IS_IGDNG(dev))
+                return igdng_dp_detect(connector);
+
+        temp = I915_READ(PORT_HOTPLUG_EN);
+
+        I915_WRITE(PORT_HOTPLUG_EN,
+               temp |
+               DPB_HOTPLUG_INT_EN |
+               DPC_HOTPLUG_INT_EN |
+               DPD_HOTPLUG_INT_EN);
+
+        POSTING_READ(PORT_HOTPLUG_EN);
+
+        switch (dp_priv->output_reg) {
+        case DP_B:
+                bit = DPB_HOTPLUG_INT_STATUS;
+                break;
+        case DP_C:
+                bit = DPC_HOTPLUG_INT_STATUS;
+                break;
+        case DP_D:
+                bit = DPD_HOTPLUG_INT_STATUS;
+                break;
+        default:
+                return connector_status_unknown;
+        }
+
+        temp = I915_READ(PORT_HOTPLUG_STAT);
+
+        if ((temp & bit) == 0)
+                return connector_status_disconnected;
+
+        status = connector_status_disconnected;
+        if (intel_dp_aux_native_read(intel_output,
+                                     0x000, dp_priv->dpcd,
+                                     sizeof (dp_priv->dpcd)) == sizeof (dp_priv->dpcd))
+        {
+                if (dp_priv->dpcd[0] != 0)
+                        status = connector_status_connected;
+        }
+        return status;
+}
+
+static int intel_dp_get_modes(struct drm_connector *connector)
+{
+        struct intel_output *intel_output = to_intel_output(connector);
+        struct drm_device *dev = intel_output->base.dev;
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        int ret;
+
+        /* We should parse the EDID data and find out if it has an audio sink
+         */
+
+        ret = intel_ddc_get_modes(intel_output);
+        if (ret)
+                return ret;
+
+        /* if eDP has no EDID, try to use fixed panel mode from VBT */
+        if (IS_eDP(intel_output)) {
+                if (dev_priv->panel_fixed_mode != NULL) {
+                        struct drm_display_mode *mode;
+                        mode = drm_mode_duplicate(dev, dev_priv->panel_fixed_mode);
+                        drm_mode_probed_add(connector, mode);
+                        return 1;
+                }
+        }
+        return 0;
+}
+
+static void
+intel_dp_destroy (struct drm_connector *connector)
+{
+        struct intel_output *intel_output = to_intel_output(connector);
+
+        if (intel_output->i2c_bus)
+                intel_i2c_destroy(intel_output->i2c_bus);
+        drm_sysfs_connector_remove(connector);
+        drm_connector_cleanup(connector);
+        kfree(intel_output);
+}
+
+static const struct drm_encoder_helper_funcs intel_dp_helper_funcs = {
+        .dpms = intel_dp_dpms,
+        .mode_fixup = intel_dp_mode_fixup,
+        .prepare = intel_encoder_prepare,
+        .mode_set = intel_dp_mode_set,
+        .commit = intel_encoder_commit,
+};
+
+static const struct drm_connector_funcs intel_dp_connector_funcs = {
+        .dpms = drm_helper_connector_dpms,
+        .save = intel_dp_save,
+        .restore = intel_dp_restore,
+        .detect = intel_dp_detect,
+        .fill_modes = drm_helper_probe_single_connector_modes,
+        .destroy = intel_dp_destroy,
+};
+
+static const struct drm_connector_helper_funcs intel_dp_connector_helper_funcs = {
+        .get_modes = intel_dp_get_modes,
+        .mode_valid = intel_dp_mode_valid,
+        .best_encoder = intel_best_encoder,
+};
+
+static void intel_dp_enc_destroy(struct drm_encoder *encoder)
+{
+        drm_encoder_cleanup(encoder);
+}
+
+static const struct drm_encoder_funcs intel_dp_enc_funcs = {
+        .destroy = intel_dp_enc_destroy,
+};
+
+void
+intel_dp_hot_plug(struct intel_output *intel_output)
+{
+        struct intel_dp_priv *dp_priv = intel_output->dev_priv;
+
+        if (dp_priv->dpms_mode == DRM_MODE_DPMS_ON)
+                intel_dp_check_link_status(intel_output);
+}
+
+void
+intel_dp_init(struct drm_device *dev, int output_reg)
+{
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        struct drm_connector *connector;
+        struct intel_output *intel_output;
+        struct intel_dp_priv *dp_priv;
+        const char *name = NULL;
+
+        intel_output = kcalloc(sizeof(struct intel_output) + 
+                               sizeof(struct intel_dp_priv), 1, GFP_KERNEL);
+        if (!intel_output)
+                return;
+
+        dp_priv = (struct intel_dp_priv *)(intel_output + 1);
+
+        connector = &intel_output->base;
+        drm_connector_init(dev, connector, &intel_dp_connector_funcs,
+                           DRM_MODE_CONNECTOR_DisplayPort);
+        drm_connector_helper_add(connector, &intel_dp_connector_helper_funcs);
+
+        if (output_reg == DP_A)
+                intel_output->type = INTEL_OUTPUT_EDP;
+        else
+                intel_output->type = INTEL_OUTPUT_DISPLAYPORT;
+
+        connector->interlace_allowed = true;
+        connector->doublescan_allowed = 0;
+
+        dp_priv->intel_output = intel_output;
+        dp_priv->output_reg = output_reg;
+        dp_priv->has_audio = false;
+        dp_priv->dpms_mode = DRM_MODE_DPMS_ON;
+        intel_output->dev_priv = dp_priv;
+
+        drm_encoder_init(dev, &intel_output->enc, &intel_dp_enc_funcs,
+                         DRM_MODE_ENCODER_TMDS);
+        drm_encoder_helper_add(&intel_output->enc, &intel_dp_helper_funcs);
+
+        drm_mode_connector_attach_encoder(&intel_output->base,
+                                          &intel_output->enc);
+        drm_sysfs_connector_add(connector);
+
+        /* Set up the DDC bus. */
+        switch (output_reg) {
+                case DP_A:
+                        name = "DPDDC-A";
+                        break;
+                case DP_B:
+                case PCH_DP_B:
+                        name = "DPDDC-B";
+                        break;
+                case DP_C:
+                case PCH_DP_C:
+                        name = "DPDDC-C";
+                        break;
+                case DP_D:
+                case PCH_DP_D:
+                        name = "DPDDC-D";
+                        break;
+        }
+
+        intel_dp_i2c_init(intel_output, name);
+
+        intel_output->ddc_bus = &dp_priv->adapter;
+        intel_output->hot_plug = intel_dp_hot_plug;
+
+        if (output_reg == DP_A) {
+                /* initialize panel mode from VBT if available for eDP */
+                if (dev_priv->lfp_lvds_vbt_mode) {
+                        dev_priv->panel_fixed_mode =
+                                drm_mode_duplicate(dev, dev_priv->lfp_lvds_vbt_mode);
+                        if (dev_priv->panel_fixed_mode) {
+                                dev_priv->panel_fixed_mode->type |=
+                                        DRM_MODE_TYPE_PREFERRED;
+                        }
+                }
+        }
+
+        /* For G4X desktop chip, PEG_BAND_GAP_DATA 3:0 must first be written
+         * 0xd.  Failure to do so will result in spurious interrupts being
+         * generated on the port when a cable is not attached.
+         */
+        if (IS_G4X(dev) && !IS_GM45(dev)) {
+                u32 temp = I915_READ(PEG_BAND_GAP_DATA);
+                I915_WRITE(PEG_BAND_GAP_DATA, (temp & ~0xf) | 0xd);
+        }
+}
diff --git a/drivers/gpu/drm/i915/intel_dp.h b/drivers/gpu/drm/i915/intel_dp.h
new file mode 100644
index 000000000000..2b38054d3b6d
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_dp.h
@@ -0,0 +1,144 @@
+/*
+ * Copyright © 2008 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifndef _INTEL_DP_H_
+#define _INTEL_DP_H_
+
+/* From the VESA DisplayPort spec */
+
+#define AUX_NATIVE_WRITE        0x8
+#define AUX_NATIVE_READ         0x9
+#define AUX_I2C_WRITE           0x0
+#define AUX_I2C_READ            0x1
+#define AUX_I2C_STATUS          0x2
+#define AUX_I2C_MOT             0x4
+
+#define AUX_NATIVE_REPLY_ACK    (0x0 << 4)
+#define AUX_NATIVE_REPLY_NACK   (0x1 << 4)
+#define AUX_NATIVE_REPLY_DEFER  (0x2 << 4)
+#define AUX_NATIVE_REPLY_MASK   (0x3 << 4)
+
+#define AUX_I2C_REPLY_ACK       (0x0 << 6)
+#define AUX_I2C_REPLY_NACK      (0x1 << 6)
+#define AUX_I2C_REPLY_DEFER     (0x2 << 6)
+#define AUX_I2C_REPLY_MASK      (0x3 << 6)
+
+/* AUX CH addresses */
+#define DP_LINK_BW_SET          0x100
+# define DP_LINK_BW_1_62                    0x06
+# define DP_LINK_BW_2_7                     0x0a
+
+#define DP_LANE_COUNT_SET       0x101
+# define DP_LANE_COUNT_MASK                 0x0f
+# define DP_LANE_COUNT_ENHANCED_FRAME_EN    (1 << 7)
+
+#define DP_TRAINING_PATTERN_SET 0x102
+
+# define DP_TRAINING_PATTERN_DISABLE        0
+# define DP_TRAINING_PATTERN_1              1
+# define DP_TRAINING_PATTERN_2              2
+# define DP_TRAINING_PATTERN_MASK           0x3
+
+# define DP_LINK_QUAL_PATTERN_DISABLE       (0 << 2)
+# define DP_LINK_QUAL_PATTERN_D10_2         (1 << 2)
+# define DP_LINK_QUAL_PATTERN_ERROR_RATE    (2 << 2)
+# define DP_LINK_QUAL_PATTERN_PRBS7         (3 << 2)
+# define DP_LINK_QUAL_PATTERN_MASK          (3 << 2)
+
+# define DP_RECOVERED_CLOCK_OUT_EN          (1 << 4)
+# define DP_LINK_SCRAMBLING_DISABLE         (1 << 5)
+
+# define DP_SYMBOL_ERROR_COUNT_BOTH         (0 << 6)
+# define DP_SYMBOL_ERROR_COUNT_DISPARITY    (1 << 6)
+# define DP_SYMBOL_ERROR_COUNT_SYMBOL       (2 << 6)
+# define DP_SYMBOL_ERROR_COUNT_MASK         (3 << 6)
+
+#define DP_TRAINING_LANE0_SET               0x103
+#define DP_TRAINING_LANE1_SET               0x104
+#define DP_TRAINING_LANE2_SET               0x105
+#define DP_TRAINING_LANE3_SET               0x106
+
+# define DP_TRAIN_VOLTAGE_SWING_MASK        0x3
+# define DP_TRAIN_VOLTAGE_SWING_SHIFT       0
+# define DP_TRAIN_MAX_SWING_REACHED         (1 << 2)
+# define DP_TRAIN_VOLTAGE_SWING_400         (0 << 0)
+# define DP_TRAIN_VOLTAGE_SWING_600         (1 << 0)
+# define DP_TRAIN_VOLTAGE_SWING_800         (2 << 0)
+# define DP_TRAIN_VOLTAGE_SWING_1200        (3 << 0)
+
+# define DP_TRAIN_PRE_EMPHASIS_MASK         (3 << 3)
+# define DP_TRAIN_PRE_EMPHASIS_0            (0 << 3)
+# define DP_TRAIN_PRE_EMPHASIS_3_5          (1 << 3)
+# define DP_TRAIN_PRE_EMPHASIS_6            (2 << 3)
+# define DP_TRAIN_PRE_EMPHASIS_9_5          (3 << 3)
+
+# define DP_TRAIN_PRE_EMPHASIS_SHIFT        3
+# define DP_TRAIN_MAX_PRE_EMPHASIS_REACHED  (1 << 5)
+
+#define DP_DOWNSPREAD_CTRL                  0x107
+# define DP_SPREAD_AMP_0_5                  (1 << 4)
+
+#define DP_MAIN_LINK_CHANNEL_CODING_SET     0x108
+# define DP_SET_ANSI_8B10B                  (1 << 0)
+
+#define DP_LANE0_1_STATUS                   0x202
+#define DP_LANE2_3_STATUS                   0x203
+
+# define DP_LANE_CR_DONE                    (1 << 0)
+# define DP_LANE_CHANNEL_EQ_DONE            (1 << 1)
+# define DP_LANE_SYMBOL_LOCKED              (1 << 2)
+
+#define DP_LANE_ALIGN_STATUS_UPDATED        0x204
+
+#define DP_INTERLANE_ALIGN_DONE             (1 << 0)
+#define DP_DOWNSTREAM_PORT_STATUS_CHANGED   (1 << 6)
+#define DP_LINK_STATUS_UPDATED              (1 << 7)
+
+#define DP_SINK_STATUS                      0x205
+
+#define DP_RECEIVE_PORT_0_STATUS            (1 << 0)
+#define DP_RECEIVE_PORT_1_STATUS            (1 << 1)
+
+#define DP_ADJUST_REQUEST_LANE0_1           0x206
+#define DP_ADJUST_REQUEST_LANE2_3           0x207
+
+#define DP_ADJUST_VOLTAGE_SWING_LANE0_MASK  0x03
+#define DP_ADJUST_VOLTAGE_SWING_LANE0_SHIFT 0
+#define DP_ADJUST_PRE_EMPHASIS_LANE0_MASK   0x0c
+#define DP_ADJUST_PRE_EMPHASIS_LANE0_SHIFT  2
+#define DP_ADJUST_VOLTAGE_SWING_LANE1_MASK  0x30
+#define DP_ADJUST_VOLTAGE_SWING_LANE1_SHIFT 4
+#define DP_ADJUST_PRE_EMPHASIS_LANE1_MASK   0xc0
+#define DP_ADJUST_PRE_EMPHASIS_LANE1_SHIFT  6
+
+struct i2c_algo_dp_aux_data {
+        bool running;
+        u16 address;
+        int (*aux_ch) (struct i2c_adapter *adapter,
+                       uint8_t *send, int send_bytes,
+                       uint8_t *recv, int recv_bytes);
+};
+
+int
+i2c_dp_aux_add_bus(struct i2c_adapter *adapter);
+
+#endif /* _INTEL_DP_H_ */
diff --git a/drivers/gpu/drm/i915/intel_dp_i2c.c b/drivers/gpu/drm/i915/intel_dp_i2c.c
new file mode 100644
index 000000000000..a63b6f57d2d4
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_dp_i2c.c
@@ -0,0 +1,273 @@
+/*
+ * Copyright © 2009 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/i2c.h>
+#include "intel_dp.h"
+#include "drmP.h"
+
+/* Run a single AUX_CH I2C transaction, writing/reading data as necessary */
+
+#define MODE_I2C_START  1
+#define MODE_I2C_WRITE  2
+#define MODE_I2C_READ   4
+#define MODE_I2C_STOP   8
+
+static int
+i2c_algo_dp_aux_transaction(struct i2c_adapter *adapter, int mode,
+                            uint8_t write_byte, uint8_t *read_byte)
+{
+        struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data;
+        uint16_t address = algo_data->address;
+        uint8_t msg[5];
+        uint8_t reply[2];
+        int msg_bytes;
+        int reply_bytes;
+        int ret;
+
+        /* Set up the command byte */
+        if (mode & MODE_I2C_READ)
+                msg[0] = AUX_I2C_READ << 4;
+        else
+                msg[0] = AUX_I2C_WRITE << 4;
+
+        if (!(mode & MODE_I2C_STOP))
+                msg[0] |= AUX_I2C_MOT << 4;
+
+        msg[1] = address >> 8;
+        msg[2] = address;
+
+        switch (mode) {
+        case MODE_I2C_WRITE:
+                msg[3] = 0;
+                msg[4] = write_byte;
+                msg_bytes = 5;
+                reply_bytes = 1;
+                break;
+        case MODE_I2C_READ:
+                msg[3] = 0;
+                msg_bytes = 4;
+                reply_bytes = 2;
+                break;
+        default:
+                msg_bytes = 3;
+                reply_bytes = 1;
+                break;
+        }
+
+        for (;;) {
+                ret = (*algo_data->aux_ch)(adapter,
+                                           msg, msg_bytes,
+                                           reply, reply_bytes);
+                if (ret < 0) {
+                        DRM_DEBUG("aux_ch failed %d\n", ret);
+                        return ret;
+                }
+                switch (reply[0] & AUX_I2C_REPLY_MASK) {
+                case AUX_I2C_REPLY_ACK:
+                        if (mode == MODE_I2C_READ) {
+                                *read_byte = reply[1];
+                        }
+                        return reply_bytes - 1;
+                case AUX_I2C_REPLY_NACK:
+                        DRM_DEBUG("aux_ch nack\n");
+                        return -EREMOTEIO;
+                case AUX_I2C_REPLY_DEFER:
+                        DRM_DEBUG("aux_ch defer\n");
+                        udelay(100);
+                        break;
+                default:
+                        DRM_ERROR("aux_ch invalid reply 0x%02x\n", reply[0]);
+                        return -EREMOTEIO;
+                }
+        }
+}
+
+/*
+ * I2C over AUX CH
+ */
+
+/*
+ * Send the address. If the I2C link is running, this 'restarts'
+ * the connection with the new address, this is used for doing
+ * a write followed by a read (as needed for DDC)
+ */
+static int
+i2c_algo_dp_aux_address(struct i2c_adapter *adapter, u16 address, bool reading)
+{
+        struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data;
+        int mode = MODE_I2C_START;
+        int ret;
+
+        if (reading)
+                mode |= MODE_I2C_READ;
+        else
+                mode |= MODE_I2C_WRITE;
+        algo_data->address = address;
+        algo_data->running = true;
+        ret = i2c_algo_dp_aux_transaction(adapter, mode, 0, NULL);
+        return ret;
+}
+
+/*
+ * Stop the I2C transaction. This closes out the link, sending
+ * a bare address packet with the MOT bit turned off
+ */
+static void
+i2c_algo_dp_aux_stop(struct i2c_adapter *adapter, bool reading)
+{
+        struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data;
+        int mode = MODE_I2C_STOP;
+
+        if (reading)
+                mode |= MODE_I2C_READ;
+        else
+                mode |= MODE_I2C_WRITE;
+        if (algo_data->running) {
+                (void) i2c_algo_dp_aux_transaction(adapter, mode, 0, NULL);
+                algo_data->running = false;
+        }
+}
+
+/*
+ * Write a single byte to the current I2C address, the
+ * the I2C link must be running or this returns -EIO
+ */
+static int
+i2c_algo_dp_aux_put_byte(struct i2c_adapter *adapter, u8 byte)
+{
+        struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data;
+        int ret;
+
+        if (!algo_data->running)
+                return -EIO;
+
+        ret = i2c_algo_dp_aux_transaction(adapter, MODE_I2C_WRITE, byte, NULL);
+        return ret;
+}
+
+/*
+ * Read a single byte from the current I2C address, the
+ * I2C link must be running or this returns -EIO
+ */
+static int
+i2c_algo_dp_aux_get_byte(struct i2c_adapter *adapter, u8 *byte_ret)
+{
+        struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data;
+        int ret;
+
+        if (!algo_data->running)
+                return -EIO;
+
+        ret = i2c_algo_dp_aux_transaction(adapter, MODE_I2C_READ, 0, byte_ret);
+        return ret;
+}
+
+static int
+i2c_algo_dp_aux_xfer(struct i2c_adapter *adapter,
+                     struct i2c_msg *msgs,
+                     int num)
+{
+        int ret = 0;
+        bool reading = false;
+        int m;
+        int b;
+
+        for (m = 0; m < num; m++) {
+                u16 len = msgs[m].len;
+                u8 *buf = msgs[m].buf;
+                reading = (msgs[m].flags & I2C_M_RD) != 0;
+                ret = i2c_algo_dp_aux_address(adapter, msgs[m].addr, reading);
+                if (ret < 0)
+                        break;
+                if (reading) {
+                        for (b = 0; b < len; b++) {
+                                ret = i2c_algo_dp_aux_get_byte(adapter, &buf[b]);
+                                if (ret < 0)
+                                        break;
+                        }
+                } else {
+                        for (b = 0; b < len; b++) {
+                                ret = i2c_algo_dp_aux_put_byte(adapter, buf[b]);
+                                if (ret < 0)
+                                        break;
+                        }
+                }
+                if (ret < 0)
+                        break;
+        }
+        if (ret >= 0)
+                ret = num;
+        i2c_algo_dp_aux_stop(adapter, reading);
+        DRM_DEBUG("dp_aux_xfer return %d\n", ret);
+        return ret;
+}
+
+static u32
+i2c_algo_dp_aux_functionality(struct i2c_adapter *adapter)
+{
+        return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL |
+               I2C_FUNC_SMBUS_READ_BLOCK_DATA |
+               I2C_FUNC_SMBUS_BLOCK_PROC_CALL |
+               I2C_FUNC_10BIT_ADDR;
+}
+
+static const struct i2c_algorithm i2c_dp_aux_algo = {
+        .master_xfer    = i2c_algo_dp_aux_xfer,
+        .functionality  = i2c_algo_dp_aux_functionality,
+};
+
+static void
+i2c_dp_aux_reset_bus(struct i2c_adapter *adapter)
+{
+        (void) i2c_algo_dp_aux_address(adapter, 0, false);
+        (void) i2c_algo_dp_aux_stop(adapter, false);
+                                           
+}
+
+static int
+i2c_dp_aux_prepare_bus(struct i2c_adapter *adapter)
+{
+        adapter->algo = &i2c_dp_aux_algo;
+        adapter->retries = 3;
+        i2c_dp_aux_reset_bus(adapter);
+        return 0;
+}
+
+int
+i2c_dp_aux_add_bus(struct i2c_adapter *adapter)
+{
+        int error;
+        
+        error = i2c_dp_aux_prepare_bus(adapter);
+        if (error)
+                return error;
+        error = i2c_add_adapter(adapter);
+        return error;
+}
+EXPORT_SYMBOL(i2c_dp_aux_add_bus);
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index cd4b9c5f715e..d6f92ea1b553 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -54,6 +54,8 @@
 #define INTEL_OUTPUT_LVDS 4
 #define INTEL_OUTPUT_TVOUT 5
 #define INTEL_OUTPUT_HDMI 6
+#define INTEL_OUTPUT_DISPLAYPORT 7
+#define INTEL_OUTPUT_EDP 8
 
 #define INTEL_DVO_CHIP_NONE 0
 #define INTEL_DVO_CHIP_LVDS 1
@@ -65,7 +67,6 @@ struct intel_i2c_chan {
         u32 reg; /* GPIO reg */
         struct i2c_adapter adapter;
         struct i2c_algo_bit_data algo;
-        u8 slave_addr;
 };
 
 struct intel_framebuffer {
@@ -79,11 +80,12 @@ struct intel_output {
 
         struct drm_encoder enc;
         int type;
-        struct intel_i2c_chan *i2c_bus; /* for control functions */
-        struct intel_i2c_chan *ddc_bus; /* for DDC only stuff */
+        struct i2c_adapter *i2c_bus;
+        struct i2c_adapter *ddc_bus;
         bool load_detect_temp;
         bool needs_tv_clock;
         void *dev_priv;
+        void (*hot_plug)(struct intel_output *);
 };
 
 struct intel_crtc {
@@ -104,9 +106,9 @@ struct intel_crtc {
 #define enc_to_intel_output(x) container_of(x, struct intel_output, enc)
 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
 
-struct intel_i2c_chan *intel_i2c_create(struct drm_device *dev, const u32 reg,
-                                        const char *name);
-void intel_i2c_destroy(struct intel_i2c_chan *chan);
+struct i2c_adapter *intel_i2c_create(struct drm_device *dev, const u32 reg,
+                                     const char *name);
+void intel_i2c_destroy(struct i2c_adapter *adapter);
 int intel_ddc_get_modes(struct intel_output *intel_output);
 extern bool intel_ddc_probe(struct intel_output *intel_output);
 void intel_i2c_quirk_set(struct drm_device *dev, bool enable);
@@ -116,6 +118,12 @@ extern bool intel_sdvo_init(struct drm_device *dev, int output_device);
 extern void intel_dvo_init(struct drm_device *dev);
 extern void intel_tv_init(struct drm_device *dev);
 extern void intel_lvds_init(struct drm_device *dev);
+extern void intel_dp_init(struct drm_device *dev, int dp_reg);
+void
+intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode,
+                 struct drm_display_mode *adjusted_mode);
+extern void intel_edp_link_config (struct intel_output *, int *, int *);
+
 
 extern void intel_crtc_load_lut(struct drm_crtc *crtc);
 extern void intel_encoder_prepare (struct drm_encoder *encoder);
diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c
index 1ee3007d6ec0..13bff20930e8 100644
--- a/drivers/gpu/drm/i915/intel_dvo.c
+++ b/drivers/gpu/drm/i915/intel_dvo.c
@@ -384,10 +384,9 @@ void intel_dvo_init(struct drm_device *dev)
 {
         struct intel_output *intel_output;
         struct intel_dvo_device *dvo;
-        struct intel_i2c_chan *i2cbus = NULL;
+        struct i2c_adapter *i2cbus = NULL;
         int ret = 0;
         int i;
-        int gpio_inited = 0;
         int encoder_type = DRM_MODE_ENCODER_NONE;
         intel_output = kzalloc (sizeof(struct intel_output), GFP_KERNEL);
         if (!intel_output)
@@ -420,14 +419,11 @@ void intel_dvo_init(struct drm_device *dev)
                  * It appears that everything is on GPIOE except for panels
                  * on i830 laptops, which are on GPIOB (DVOA).
                  */
-                if (gpio_inited != gpio) {
-                        if (i2cbus != NULL)
-                                intel_i2c_destroy(i2cbus);
-                        if (!(i2cbus = intel_i2c_create(dev, gpio,
-                                gpio == GPIOB ? "DVOI2C_B" : "DVOI2C_E"))) {
-                                continue;
-                        }
-                        gpio_inited = gpio;
+                if (i2cbus != NULL)
+                        intel_i2c_destroy(i2cbus);
+                if (!(i2cbus = intel_i2c_create(dev, gpio,
+                        gpio == GPIOB ? "DVOI2C_B" : "DVOI2C_E"))) {
+                        continue;
                 }
 
                 if (dvo->dev_ops!= NULL)
diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index 1af7d68e3807..1d30802e773e 100644
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -453,7 +453,7 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
         size = ALIGN(size, PAGE_SIZE);
         fbo = drm_gem_object_alloc(dev, size);
         if (!fbo) {
-                printk(KERN_ERR "failed to allocate framebuffer\n");
+                DRM_ERROR("failed to allocate framebuffer\n");
                 ret = -ENOMEM;
                 goto out;
         }
@@ -610,8 +610,8 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
         par->dev = dev;
 
         /* To allow resizeing without swapping buffers */
-        printk("allocated %dx%d fb: 0x%08x, bo %p\n", intel_fb->base.width,
-               intel_fb->base.height, obj_priv->gtt_offset, fbo);
+        DRM_DEBUG("allocated %dx%d fb: 0x%08x, bo %p\n", intel_fb->base.width,
+                  intel_fb->base.height, obj_priv->gtt_offset, fbo);
 
         mutex_unlock(&dev->struct_mutex);
         return 0;
@@ -698,13 +698,13 @@ static int intelfb_multi_fb_probe_crtc(struct drm_device *dev, struct drm_crtc *
         } else
                 intelfb_set_par(info);
 
-        printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node,
+        DRM_INFO("fb%d: %s frame buffer device\n", info->node,
                info->fix.id);
 
         /* Switch back to kernel console on panic */
         kernelfb_mode = *modeset;
         atomic_notifier_chain_register(&panic_notifier_list, &paniced);
-        printk(KERN_INFO "registered panic notifier\n");
+        DRM_DEBUG("registered panic notifier\n");
 
         return 0;
 }
@@ -852,13 +852,13 @@ static int intelfb_single_fb_probe(struct drm_device *dev)
         } else
                 intelfb_set_par(info);
 
-        printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node,
+        DRM_INFO("fb%d: %s frame buffer device\n", info->node,
                info->fix.id);
 
         /* Switch back to kernel console on panic */
         kernelfb_mode = *modeset;
         atomic_notifier_chain_register(&panic_notifier_list, &paniced);
-        printk(KERN_INFO "registered panic notifier\n");
+        DRM_DEBUG("registered panic notifier\n");
 
         return 0;
 }
@@ -872,8 +872,8 @@ void intelfb_restore(void)
 {
         int ret;
         if ((ret = drm_crtc_helper_set_config(&kernelfb_mode)) != 0) {
-                printk(KERN_ERR "Failed to restore crtc configuration: %d\n",
-                       ret);
+                DRM_ERROR("Failed to restore crtc configuration: %d\n",
+                          ret);
         }
 }
 
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 4ea2a651b92c..1842290cded3 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -31,6 +31,7 @@
 #include "drmP.h"
 #include "drm.h"
 #include "drm_crtc.h"
+#include "drm_edid.h"
 #include "intel_drv.h"
 #include "i915_drm.h"
 #include "i915_drv.h"
@@ -56,8 +57,7 @@ static void intel_hdmi_mode_set(struct drm_encoder *encoder,
         sdvox = SDVO_ENCODING_HDMI |
                 SDVO_BORDER_ENABLE |
                 SDVO_VSYNC_ACTIVE_HIGH |
-                SDVO_HSYNC_ACTIVE_HIGH |
-                SDVO_NULL_PACKETS_DURING_VSYNC;
+                SDVO_HSYNC_ACTIVE_HIGH;
 
         if (hdmi_priv->has_hdmi_sink)
                 sdvox |= SDVO_AUDIO_ENABLE;
@@ -129,83 +129,28 @@ static bool intel_hdmi_mode_fixup(struct drm_encoder *encoder,
         return true;
 }
 
-static void
-intel_hdmi_sink_detect(struct drm_connector *connector)
-{
-        struct intel_output *intel_output = to_intel_output(connector);
-        struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
-        struct edid *edid = NULL;
-
-        edid = drm_get_edid(&intel_output->base,
-                            &intel_output->ddc_bus->adapter);
-        if (edid != NULL) {
-                hdmi_priv->has_hdmi_sink = drm_detect_hdmi_monitor(edid);
-                kfree(edid);
-                intel_output->base.display_info.raw_edid = NULL;
-        }
-}
-
-static enum drm_connector_status
-igdng_hdmi_detect(struct drm_connector *connector)
-{
-        struct intel_output *intel_output = to_intel_output(connector);
-        struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
-
-        /* FIXME hotplug detect */
-
-        hdmi_priv->has_hdmi_sink = false;
-        intel_hdmi_sink_detect(connector);
-        if (hdmi_priv->has_hdmi_sink)
-                return connector_status_connected;
-        else
-                return connector_status_disconnected;
-}
-
 static enum drm_connector_status
 intel_hdmi_detect(struct drm_connector *connector)
 {
-        struct drm_device *dev = connector->dev;
-        struct drm_i915_private *dev_priv = dev->dev_private;
         struct intel_output *intel_output = to_intel_output(connector);
         struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
-        u32 temp, bit;
-
-        if (IS_IGDNG(dev))
-                return igdng_hdmi_detect(connector);
-
-        temp = I915_READ(PORT_HOTPLUG_EN);
-
-        switch (hdmi_priv->sdvox_reg) {
-        case SDVOB:
-                temp |= HDMIB_HOTPLUG_INT_EN;
-                break;
-        case SDVOC:
-                temp |= HDMIC_HOTPLUG_INT_EN;
-                break;
-        default:
-                return connector_status_unknown;
-        }
-
-        I915_WRITE(PORT_HOTPLUG_EN, temp);
+        struct edid *edid = NULL;
+        enum drm_connector_status status = connector_status_disconnected;
 
-        POSTING_READ(PORT_HOTPLUG_EN);
+        hdmi_priv->has_hdmi_sink = false;
+        edid = drm_get_edid(&intel_output->base,
+                            intel_output->ddc_bus);
 
-        switch (hdmi_priv->sdvox_reg) {
-        case SDVOB:
-                bit = HDMIB_HOTPLUG_INT_STATUS;
-                break;
-        case SDVOC:
-                bit = HDMIC_HOTPLUG_INT_STATUS;
-                break;
-        default:
-                return connector_status_unknown;
+        if (edid) {
+                if (edid->input & DRM_EDID_INPUT_DIGITAL) {
+                        status = connector_status_connected;
+                        hdmi_priv->has_hdmi_sink = drm_detect_hdmi_monitor(edid);
+                }
+                intel_output->base.display_info.raw_edid = NULL;
+                kfree(edid);
         }
 
-        if ((I915_READ(PORT_HOTPLUG_STAT) & bit) != 0) {
-                intel_hdmi_sink_detect(connector);
-                return connector_status_connected;
-        } else
-                return connector_status_disconnected;
+        return status;
 }
 
 static int intel_hdmi_get_modes(struct drm_connector *connector)
diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c
index f7061f68d050..62b8bead7652 100644
--- a/drivers/gpu/drm/i915/intel_i2c.c
+++ b/drivers/gpu/drm/i915/intel_i2c.c
@@ -124,6 +124,7 @@ static void set_data(void *data, int state_high)
  * @output: driver specific output device
  * @reg: GPIO reg to use
  * @name: name for this bus
+ * @slave_addr: slave address (if fixed)
  *
  * Creates and registers a new i2c bus with the Linux i2c layer, for use
  * in output probing and control (e.g. DDC or SDVO control functions).
@@ -139,8 +140,8 @@ static void set_data(void *data, int state_high)
  *   %GPIOH
  * see PRM for details on how these different busses are used.
  */
-struct intel_i2c_chan *intel_i2c_create(struct drm_device *dev, const u32 reg,
-                                        const char *name)
+struct i2c_adapter *intel_i2c_create(struct drm_device *dev, const u32 reg,
+                                     const char *name)
 {
         struct intel_i2c_chan *chan;
 
@@ -174,7 +175,7 @@ struct intel_i2c_chan *intel_i2c_create(struct drm_device *dev, const u32 reg,
         intel_i2c_quirk_set(dev, false);
         udelay(20);
 
-        return chan;
+        return &chan->adapter;
 
 out_free:
         kfree(chan);
@@ -187,11 +188,16 @@ out_free:
  *
  * Unregister the adapter from the i2c layer, then free the structure.
  */
-void intel_i2c_destroy(struct intel_i2c_chan *chan)
+void intel_i2c_destroy(struct i2c_adapter *adapter)
 {
-        if (!chan)
+        struct intel_i2c_chan *chan;
+
+        if (!adapter)
                 return;
 
+        chan = container_of(adapter,
+                            struct intel_i2c_chan,
+                            adapter);
         i2c_del_adapter(&chan->adapter);
         kfree(chan);
 }
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index f073ed8432e8..3f445a80c552 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -36,9 +36,25 @@
 #include "intel_drv.h"
 #include "i915_drm.h"
 #include "i915_drv.h"
+#include <linux/acpi.h>
 
 #define I915_LVDS "i915_lvds"
 
+/*
+ * the following four scaling options are defined.
+ * #define DRM_MODE_SCALE_NON_GPU       0
+ * #define DRM_MODE_SCALE_FULLSCREEN    1
+ * #define DRM_MODE_SCALE_NO_SCALE      2
+ * #define DRM_MODE_SCALE_ASPECT        3
+ */
+
+/* Private structure for the integrated LVDS support */
+struct intel_lvds_priv {
+        int fitting_mode;
+        u32 pfit_control;
+        u32 pfit_pgm_ratios;
+};
+
 /**
  * Sets the backlight level.
  *
@@ -213,26 +229,45 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder,
                                   struct drm_display_mode *mode,
                                   struct drm_display_mode *adjusted_mode)
 {
+        /*
+         * float point operation is not supported . So the PANEL_RATIO_FACTOR
+         * is defined, which can avoid the float point computation when
+         * calculating the panel ratio.
+         */
+#define PANEL_RATIO_FACTOR 8192
         struct drm_device *dev = encoder->dev;
         struct drm_i915_private *dev_priv = dev->dev_private;
         struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
         struct drm_encoder *tmp_encoder;
+        struct intel_output *intel_output = enc_to_intel_output(encoder);
+        struct intel_lvds_priv *lvds_priv = intel_output->dev_priv;
+        u32 pfit_control = 0, pfit_pgm_ratios = 0;
+        int left_border = 0, right_border = 0, top_border = 0;
+        int bottom_border = 0;
+        bool border = 0;
+        int panel_ratio, desired_ratio, vert_scale, horiz_scale;
+        int horiz_ratio, vert_ratio;
+        u32 hsync_width, vsync_width;
+        u32 hblank_width, vblank_width;
+        u32 hsync_pos, vsync_pos;
 
         /* Should never happen!! */
         if (!IS_I965G(dev) && intel_crtc->pipe == 0) {
-                printk(KERN_ERR "Can't support LVDS on pipe A\n");
+                DRM_ERROR("Can't support LVDS on pipe A\n");
                 return false;
         }
 
         /* Should never happen!! */
         list_for_each_entry(tmp_encoder, &dev->mode_config.encoder_list, head) {
                 if (tmp_encoder != encoder && tmp_encoder->crtc == encoder->crtc) {
-                        printk(KERN_ERR "Can't enable LVDS and another "
+                        DRM_ERROR("Can't enable LVDS and another "
                                "encoder on the same pipe\n");
                         return false;
                 }
         }
-
+        /* If we don't have a panel mode, there is nothing we can do */
+        if (dev_priv->panel_fixed_mode == NULL)
+                return true;
         /*
          * If we have timings from the BIOS for the panel, put them in
          * to the adjusted mode.  The CRTC will be set up for this mode,
@@ -256,6 +291,243 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder,
                 drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V);
         }
 
+        /* Make sure pre-965s set dither correctly */
+        if (!IS_I965G(dev)) {
+                if (dev_priv->panel_wants_dither || dev_priv->lvds_dither)
+                        pfit_control |= PANEL_8TO6_DITHER_ENABLE;
+        }
+
+        /* Native modes don't need fitting */
+        if (adjusted_mode->hdisplay == mode->hdisplay &&
+                        adjusted_mode->vdisplay == mode->vdisplay) {
+                pfit_pgm_ratios = 0;
+                border = 0;
+                goto out;
+        }
+
+        /* 965+ wants fuzzy fitting */
+        if (IS_I965G(dev))
+                pfit_control |= (intel_crtc->pipe << PFIT_PIPE_SHIFT) |
+                                        PFIT_FILTER_FUZZY;
+
+        hsync_width = adjusted_mode->crtc_hsync_end -
+                                        adjusted_mode->crtc_hsync_start;
+        vsync_width = adjusted_mode->crtc_vsync_end -
+                                        adjusted_mode->crtc_vsync_start;
+        hblank_width = adjusted_mode->crtc_hblank_end -
+                                        adjusted_mode->crtc_hblank_start;
+        vblank_width = adjusted_mode->crtc_vblank_end -
+                                        adjusted_mode->crtc_vblank_start;
+        /*
+         * Deal with panel fitting options. Figure out how to stretch the
+         * image based on its aspect ratio & the current panel fitting mode.
+         */
+        panel_ratio = adjusted_mode->hdisplay * PANEL_RATIO_FACTOR /
+                                adjusted_mode->vdisplay;
+        desired_ratio = mode->hdisplay * PANEL_RATIO_FACTOR /
+                                mode->vdisplay;
+        /*
+         * Enable automatic panel scaling for non-native modes so that they fill
+         * the screen.  Should be enabled before the pipe is enabled, according
+         * to register description and PRM.
+         * Change the value here to see the borders for debugging
+         */
+        I915_WRITE(BCLRPAT_A, 0);
+        I915_WRITE(BCLRPAT_B, 0);
+
+        switch (lvds_priv->fitting_mode) {
+        case DRM_MODE_SCALE_NO_SCALE:
+                /*
+                 * For centered modes, we have to calculate border widths &
+                 * heights and modify the values programmed into the CRTC.
+                 */
+                left_border = (adjusted_mode->hdisplay - mode->hdisplay) / 2;
+                right_border = left_border;
+                if (mode->hdisplay & 1)
+                        right_border++;
+                top_border = (adjusted_mode->vdisplay - mode->vdisplay) / 2;
+                bottom_border = top_border;
+                if (mode->vdisplay & 1)
+                        bottom_border++;
+                /* Set active & border values */
+                adjusted_mode->crtc_hdisplay = mode->hdisplay;
+                /* Keep the boder be even */
+                if (right_border & 1)
+                        right_border++;
+                /* use the border directly instead of border minuse one */
+                adjusted_mode->crtc_hblank_start = mode->hdisplay +
+                                                right_border;
+                /* keep the blank width constant */
+                adjusted_mode->crtc_hblank_end =
+                        adjusted_mode->crtc_hblank_start + hblank_width;
+                /* get the hsync pos relative to hblank start */
+                hsync_pos = (hblank_width - hsync_width) / 2;
+                /* keep the hsync pos be even */
+                if (hsync_pos & 1)
+                        hsync_pos++;
+                adjusted_mode->crtc_hsync_start =
+                                adjusted_mode->crtc_hblank_start + hsync_pos;
+                /* keep the hsync width constant */
+                adjusted_mode->crtc_hsync_end =
+                                adjusted_mode->crtc_hsync_start + hsync_width;
+                adjusted_mode->crtc_vdisplay = mode->vdisplay;
+                /* use the border instead of border minus one */
+                adjusted_mode->crtc_vblank_start = mode->vdisplay +
+                                                bottom_border;
+                /* keep the vblank width constant */
+                adjusted_mode->crtc_vblank_end =
+                                adjusted_mode->crtc_vblank_start + vblank_width;
+                /* get the vsync start postion relative to vblank start */
+                vsync_pos = (vblank_width - vsync_width) / 2;
+                adjusted_mode->crtc_vsync_start =
+                                adjusted_mode->crtc_vblank_start + vsync_pos;
+                /* keep the vsync width constant */
+                adjusted_mode->crtc_vsync_end =
+                                adjusted_mode->crtc_vblank_start + vsync_width;
+                border = 1;
+                break;
+        case DRM_MODE_SCALE_ASPECT:
+                /* Scale but preserve the spect ratio */
+                pfit_control |= PFIT_ENABLE;
+                if (IS_I965G(dev)) {
+                        /* 965+ is easy, it does everything in hw */
+                        if (panel_ratio > desired_ratio)
+                                pfit_control |= PFIT_SCALING_PILLAR;
+                        else if (panel_ratio < desired_ratio)
+                                pfit_control |= PFIT_SCALING_LETTER;
+                        else
+                                pfit_control |= PFIT_SCALING_AUTO;
+                } else {
+                        /*
+                         * For earlier chips we have to calculate the scaling
+                         * ratio by hand and program it into the
+                         * PFIT_PGM_RATIO register
+                         */
+                        u32 horiz_bits, vert_bits, bits = 12;
+                        horiz_ratio = mode->hdisplay * PANEL_RATIO_FACTOR/
+                                                adjusted_mode->hdisplay;
+                        vert_ratio = mode->vdisplay * PANEL_RATIO_FACTOR/
+                                                adjusted_mode->vdisplay;
+                        horiz_scale = adjusted_mode->hdisplay *
+                                        PANEL_RATIO_FACTOR / mode->hdisplay;
+                        vert_scale = adjusted_mode->vdisplay *
+                                        PANEL_RATIO_FACTOR / mode->vdisplay;
+
+                        /* retain aspect ratio */
+                        if (panel_ratio > desired_ratio) { /* Pillar */
+                                u32 scaled_width;
+                                scaled_width = mode->hdisplay * vert_scale /
+                                                PANEL_RATIO_FACTOR;
+                                horiz_ratio = vert_ratio;
+                                pfit_control |= (VERT_AUTO_SCALE |
+                                                 VERT_INTERP_BILINEAR |
+                                                 HORIZ_INTERP_BILINEAR);
+                                /* Pillar will have left/right borders */
+                                left_border = (adjusted_mode->hdisplay -
+                                                scaled_width) / 2;
+                                right_border = left_border;
+                                if (mode->hdisplay & 1) /* odd resolutions */
+                                        right_border++;
+                                /* keep the border be even */
+                                if (right_border & 1)
+                                        right_border++;
+                                adjusted_mode->crtc_hdisplay = scaled_width;
+                                /* use border instead of border minus one */
+                                adjusted_mode->crtc_hblank_start =
+                                        scaled_width + right_border;
+                                /* keep the hblank width constant */
+                                adjusted_mode->crtc_hblank_end =
+                                        adjusted_mode->crtc_hblank_start +
+                                                        hblank_width;
+                                /*
+                                 * get the hsync start pos relative to
+                                 * hblank start
+                                 */
+                                hsync_pos = (hblank_width - hsync_width) / 2;
+                                /* keep the hsync_pos be even */
+                                if (hsync_pos & 1)
+                                        hsync_pos++;
+                                adjusted_mode->crtc_hsync_start =
+                                        adjusted_mode->crtc_hblank_start +
+                                                        hsync_pos;
+                                /* keept hsync width constant */
+                                adjusted_mode->crtc_hsync_end =
+                                        adjusted_mode->crtc_hsync_start +
+                                                        hsync_width;
+                                border = 1;
+                        } else if (panel_ratio < desired_ratio) { /* letter */
+                                u32 scaled_height = mode->vdisplay *
+                                        horiz_scale / PANEL_RATIO_FACTOR;
+                                vert_ratio = horiz_ratio;
+                                pfit_control |= (HORIZ_AUTO_SCALE |
+                                                 VERT_INTERP_BILINEAR |
+                                                 HORIZ_INTERP_BILINEAR);
+                                /* Letterbox will have top/bottom border */
+                                top_border = (adjusted_mode->vdisplay -
+                                        scaled_height) / 2;
+                                bottom_border = top_border;
+                                if (mode->vdisplay & 1)
+                                        bottom_border++;
+                                adjusted_mode->crtc_vdisplay = scaled_height;
+                                /* use border instead of border minus one */
+                                adjusted_mode->crtc_vblank_start =
+                                        scaled_height + bottom_border;
+                                /* keep the vblank width constant */
+                                adjusted_mode->crtc_vblank_end =
+                                        adjusted_mode->crtc_vblank_start +
+                                                        vblank_width;
+                                /*
+                                 * get the vsync start pos relative to
+                                 * vblank start
+                                 */
+                                vsync_pos = (vblank_width - vsync_width) / 2;
+                                adjusted_mode->crtc_vsync_start =
+                                        adjusted_mode->crtc_vblank_start +
+                                                        vsync_pos;
+                                /* keep the vsync width constant */
+                                adjusted_mode->crtc_vsync_end =
+                                        adjusted_mode->crtc_vsync_start +
+                                                        vsync_width;
+                                border = 1;
+                        } else {
+                        /* Aspects match, Let hw scale both directions */
+                                pfit_control |= (VERT_AUTO_SCALE |
+                                                 HORIZ_AUTO_SCALE |
+                                                 VERT_INTERP_BILINEAR |
+                                                 HORIZ_INTERP_BILINEAR);
+                        }
+                        horiz_bits = (1 << bits) * horiz_ratio /
+                                        PANEL_RATIO_FACTOR;
+                        vert_bits = (1 << bits) * vert_ratio /
+                                        PANEL_RATIO_FACTOR;
+                        pfit_pgm_ratios =
+                                ((vert_bits << PFIT_VERT_SCALE_SHIFT) &
+                                                PFIT_VERT_SCALE_MASK) |
+                                ((horiz_bits << PFIT_HORIZ_SCALE_SHIFT) &
+                                                PFIT_HORIZ_SCALE_MASK);
+                }
+                break;
+
+        case DRM_MODE_SCALE_FULLSCREEN:
+                /*
+                 * Full scaling, even if it changes the aspect ratio.
+                 * Fortunately this is all done for us in hw.
+                 */
+                pfit_control |= PFIT_ENABLE;
+                if (IS_I965G(dev))
+                        pfit_control |= PFIT_SCALING_AUTO;
+                else
+                        pfit_control |= (VERT_AUTO_SCALE | HORIZ_AUTO_SCALE |
+                                         VERT_INTERP_BILINEAR |
+                                         HORIZ_INTERP_BILINEAR);
+                break;
+        default:
+                break;
+        }
+
+out:
+        lvds_priv->pfit_control = pfit_control;
+        lvds_priv->pfit_pgm_ratios = pfit_pgm_ratios;
         /*
          * XXX: It would be nice to support lower refresh rates on the
          * panels to reduce power consumption, and perhaps match the
@@ -301,8 +573,8 @@ static void intel_lvds_mode_set(struct drm_encoder *encoder,
 {
         struct drm_device *dev = encoder->dev;
         struct drm_i915_private *dev_priv = dev->dev_private;
-        struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
-        u32 pfit_control;
+        struct intel_output *intel_output = enc_to_intel_output(encoder);
+        struct intel_lvds_priv *lvds_priv = intel_output->dev_priv;
 
         /*
          * The LVDS pin pair will already have been turned on in the
@@ -319,22 +591,8 @@ static void intel_lvds_mode_set(struct drm_encoder *encoder,
          * screen.  Should be enabled before the pipe is enabled, according to
          * register description and PRM.
          */
-        if (mode->hdisplay != adjusted_mode->hdisplay ||
-            mode->vdisplay != adjusted_mode->vdisplay)
-                pfit_control = (PFIT_ENABLE | VERT_AUTO_SCALE |
-                                HORIZ_AUTO_SCALE | VERT_INTERP_BILINEAR |
-                                HORIZ_INTERP_BILINEAR);
-        else
-                pfit_control = 0;
-
-        if (!IS_I965G(dev)) {
-                if (dev_priv->panel_wants_dither || dev_priv->lvds_dither)
-                        pfit_control |= PANEL_8TO6_DITHER_ENABLE;
-        }
-        else
-                pfit_control |= intel_crtc->pipe << PFIT_PIPE_SHIFT;
-
-        I915_WRITE(PFIT_CONTROL, pfit_control);
+        I915_WRITE(PFIT_PGM_RATIOS, lvds_priv->pfit_pgm_ratios);
+        I915_WRITE(PFIT_CONTROL, lvds_priv->pfit_control);
 }
 
 /**
@@ -406,6 +664,34 @@ static int intel_lvds_set_property(struct drm_connector *connector,
                                    struct drm_property *property,
                                    uint64_t value)
 {
+        struct drm_device *dev = connector->dev;
+        struct intel_output *intel_output =
+                        to_intel_output(connector);
+
+        if (property == dev->mode_config.scaling_mode_property &&
+                                connector->encoder) {
+                struct drm_crtc *crtc = connector->encoder->crtc;
+                struct intel_lvds_priv *lvds_priv = intel_output->dev_priv;
+                if (value == DRM_MODE_SCALE_NON_GPU) {
+                        DRM_DEBUG_KMS(I915_LVDS,
+                                        "non_GPU property is unsupported\n");
+                        return 0;
+                }
+                if (lvds_priv->fitting_mode == value) {
+                        /* the LVDS scaling property is not changed */
+                        return 0;
+                }
+                lvds_priv->fitting_mode = value;
+                if (crtc && crtc->enabled) {
+                        /*
+                         * If the CRTC is enabled, the display will be changed
+                         * according to the new panel fitting mode.
+                         */
+                        drm_crtc_helper_set_mode(crtc, &crtc->mode,
+                                crtc->x, crtc->y, crtc->fb);
+                }
+        }
+
         return 0;
 }
 
@@ -456,7 +742,7 @@ static const struct dmi_system_id intel_no_lvds[] = {
                 .callback = intel_no_lvds_dmi_callback,
                 .ident = "Apple Mac Mini (Core series)",
                 .matches = {
-                        DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+                        DMI_MATCH(DMI_SYS_VENDOR, "Apple"),
                         DMI_MATCH(DMI_PRODUCT_NAME, "Macmini1,1"),
                 },
         },
@@ -464,7 +750,7 @@ static const struct dmi_system_id intel_no_lvds[] = {
                 .callback = intel_no_lvds_dmi_callback,
                 .ident = "Apple Mac Mini (Core 2 series)",
                 .matches = {
-                        DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+                        DMI_MATCH(DMI_SYS_VENDOR, "Apple"),
                         DMI_MATCH(DMI_PRODUCT_NAME, "Macmini2,1"),
                 },
         },
@@ -494,6 +780,14 @@ static const struct dmi_system_id intel_no_lvds[] = {
         },
         {
                 .callback = intel_no_lvds_dmi_callback,
+                .ident = "AOpen Mini PC MP915",
+                .matches = {
+                        DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"),
+                        DMI_MATCH(DMI_BOARD_NAME, "i915GMx-F"),
+                },
+        },
+        {
+                .callback = intel_no_lvds_dmi_callback,
                 .ident = "Aopen i945GTt-VFA",
                 .matches = {
                         DMI_MATCH(DMI_PRODUCT_VERSION, "AO00001JW"),
@@ -503,6 +797,65 @@ static const struct dmi_system_id intel_no_lvds[] = {
         { }     /* terminating entry */
 };
 
+#ifdef CONFIG_ACPI
+/*
+ * check_lid_device -- check whether @handle is an ACPI LID device.
+ * @handle: ACPI device handle
+ * @level : depth in the ACPI namespace tree
+ * @context: the number of LID device when we find the device
+ * @rv: a return value to fill if desired (Not use)
+ */
+static acpi_status
+check_lid_device(acpi_handle handle, u32 level, void *context,
+                        void **return_value)
+{
+        struct acpi_device *acpi_dev;
+        int *lid_present = context;
+
+        acpi_dev = NULL;
+        /* Get the acpi device for device handle */
+        if (acpi_bus_get_device(handle, &acpi_dev) || !acpi_dev) {
+                /* If there is no ACPI device for handle, return */
+                return AE_OK;
+        }
+
+        if (!strncmp(acpi_device_hid(acpi_dev), "PNP0C0D", 7))
+                *lid_present = 1;
+
+        return AE_OK;
+}
+
+/**
+ * check whether there exists the ACPI LID device by enumerating the ACPI
+ * device tree.
+ */
+static int intel_lid_present(void)
+{
+        int lid_present = 0;
+
+        if (acpi_disabled) {
+                /* If ACPI is disabled, there is no ACPI device tree to
+                 * check, so assume the LID device would have been present.
+                 */
+                return 1;
+        }
+
+        acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
+                                ACPI_UINT32_MAX,
+                                check_lid_device, &lid_present, NULL);
+
+        return lid_present;
+}
+#else
+static int intel_lid_present(void)
+{
+        /* In the absence of ACPI built in, assume that the LID device would
+         * have been present.
+         */
+        return 1;
+}
+#endif
+
 /**
  * intel_lvds_init - setup LVDS connectors on this device
  * @dev: drm device
@@ -518,6 +871,7 @@ void intel_lvds_init(struct drm_device *dev)
         struct drm_encoder *encoder;
         struct drm_display_mode *scan; /* *modes, *bios_mode; */
         struct drm_crtc *crtc;
+        struct intel_lvds_priv *lvds_priv;
         u32 lvds;
         int pipe, gpio = GPIOC;
 
@@ -525,13 +879,28 @@ void intel_lvds_init(struct drm_device *dev)
         if (dmi_check_system(intel_no_lvds))
                 return;
 
+        /* Assume that any device without an ACPI LID device also doesn't
+         * have an integrated LVDS.  We would be better off parsing the BIOS
+         * to get a reliable indicator, but that code isn't written yet.
+         *
+         * In the case of all-in-one desktops using LVDS that we've seen,
+         * they're using SDVO LVDS.
+         */
+        if (!intel_lid_present())
+                return;
+
         if (IS_IGDNG(dev)) {
                 if ((I915_READ(PCH_LVDS) & LVDS_DETECTED) == 0)
                         return;
+                if (dev_priv->edp_support) {
+                        DRM_DEBUG("disable LVDS for eDP support\n");
+                        return;
+                }
                 gpio = PCH_GPIOC;
         }
 
-        intel_output = kzalloc(sizeof(struct intel_output), GFP_KERNEL);
+        intel_output = kzalloc(sizeof(struct intel_output) +
+                                sizeof(struct intel_lvds_priv), GFP_KERNEL);
         if (!intel_output) {
                 return;
         }
@@ -553,7 +922,18 @@ void intel_lvds_init(struct drm_device *dev)
         connector->interlace_allowed = false;
         connector->doublescan_allowed = false;
 
+        lvds_priv = (struct intel_lvds_priv *)(intel_output + 1);
+        intel_output->dev_priv = lvds_priv;
+        /* create the scaling mode property */
+        drm_mode_create_scaling_mode_property(dev);
+        /*
+         * the initial panel fitting mode will be FULL_SCREEN.
+         */
 
+        drm_connector_attach_property(&intel_output->base,
+                                      dev->mode_config.scaling_mode_property,
+                                      DRM_MODE_SCALE_FULLSCREEN);
+        lvds_priv->fitting_mode = DRM_MODE_SCALE_FULLSCREEN;
         /*
          * LVDS discovery:
          * 1) check for EDID on DDC
@@ -649,5 +1029,5 @@ failed:
         if (intel_output->ddc_bus)
                 intel_i2c_destroy(intel_output->ddc_bus);
         drm_connector_cleanup(connector);
-        kfree(connector);
+        kfree(intel_output);
 }
diff --git a/drivers/gpu/drm/i915/intel_modes.c b/drivers/gpu/drm/i915/intel_modes.c
index e0910fefce87..67e2f4632a24 100644
--- a/drivers/gpu/drm/i915/intel_modes.c
+++ b/drivers/gpu/drm/i915/intel_modes.c
@@ -53,10 +53,9 @@ bool intel_ddc_probe(struct intel_output *intel_output)
                 }
         };
 
-        intel_i2c_quirk_set(intel_output->ddc_bus->drm_dev, true);
-        ret = i2c_transfer(&intel_output->ddc_bus->adapter, msgs, 2);
-        intel_i2c_quirk_set(intel_output->ddc_bus->drm_dev, false);
-
+        intel_i2c_quirk_set(intel_output->base.dev, true);
+        ret = i2c_transfer(intel_output->ddc_bus, msgs, 2);
+        intel_i2c_quirk_set(intel_output->base.dev, false);
         if (ret == 2)
                 return true;
 
@@ -74,10 +73,9 @@ int intel_ddc_get_modes(struct intel_output *intel_output)
         struct edid *edid;
         int ret = 0;
 
-        intel_i2c_quirk_set(intel_output->ddc_bus->drm_dev, true);
-        edid = drm_get_edid(&intel_output->base,
-                            &intel_output->ddc_bus->adapter);
-        intel_i2c_quirk_set(intel_output->ddc_bus->drm_dev, false);
+        intel_i2c_quirk_set(intel_output->base.dev, true);
+        edid = drm_get_edid(&intel_output->base, intel_output->ddc_bus);
+        intel_i2c_quirk_set(intel_output->base.dev, false);
         if (edid) {
                 drm_mode_connector_update_edid_property(&intel_output->base,
                                                         edid);
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 9a00adb3a508..5371d9332554 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -31,6 +31,7 @@
 #include "drm.h"
 #include "drm_crtc.h"
 #include "intel_drv.h"
+#include "drm_edid.h"
 #include "i915_drm.h"
 #include "i915_drv.h"
 #include "intel_sdvo_regs.h"
@@ -38,8 +39,7 @@
 #undef SDVO_DEBUG
 #define I915_SDVO       "i915_sdvo"
 struct intel_sdvo_priv {
-        struct intel_i2c_chan *i2c_bus;
-        int slaveaddr;
+        u8 slave_addr;
 
         /* Register for the SDVO device: SDVOB or SDVOC */
         int output_device;
@@ -56,6 +56,12 @@ struct intel_sdvo_priv {
         /* Pixel clock limitations reported by the SDVO device, in kHz */
         int pixel_clock_min, pixel_clock_max;
 
+        /*
+        * For multiple function SDVO device,
+        * this is for current attached outputs.
+        */
+        uint16_t attached_output;
+
         /**
          * This is set if we're going to treat the device as TV-out.
          *
@@ -69,12 +75,23 @@ struct intel_sdvo_priv {
          * This is set if we treat the device as HDMI, instead of DVI.
          */
         bool is_hdmi;
+
         /**
          * This is set if we detect output of sdvo device as LVDS.
          */
         bool is_lvds;
 
         /**
+         * This is sdvo flags for input timing.
+         */
+        uint8_t sdvo_flags;
+
+        /**
+         * This is sdvo fixed pannel mode pointer
+         */
+        struct drm_display_mode *sdvo_lvds_fixed_mode;
+
+        /**
          * Returned SDTV resolutions allowed for the current format, if the
          * device reported it.
          */
@@ -104,6 +121,9 @@ struct intel_sdvo_priv {
         u32 save_SDVOX;
 };
 
+static bool
+intel_sdvo_output_setup(struct intel_output *intel_output, uint16_t flags);
+
 /**
  * Writes the SDVOB or SDVOC with the given value, but always writes both
  * SDVOB and SDVOC to work around apparent hardware issues (according to
@@ -146,13 +166,13 @@ static bool intel_sdvo_read_byte(struct intel_output *intel_output, u8 addr,
 
         struct i2c_msg msgs[] = {
                 {
-                        .addr = sdvo_priv->i2c_bus->slave_addr,
+                        .addr = sdvo_priv->slave_addr >> 1,
                         .flags = 0,
                         .len = 1,
                         .buf = out_buf,
                 },
                 {
-                        .addr = sdvo_priv->i2c_bus->slave_addr,
+                        .addr = sdvo_priv->slave_addr >> 1,
                         .flags = I2C_M_RD,
                         .len = 1,
                         .buf = buf,
@@ -162,7 +182,7 @@ static bool intel_sdvo_read_byte(struct intel_output *intel_output, u8 addr,
         out_buf[0] = addr;
         out_buf[1] = 0;
 
-        if ((ret = i2c_transfer(&sdvo_priv->i2c_bus->adapter, msgs, 2)) == 2)
+        if ((ret = i2c_transfer(intel_output->i2c_bus, msgs, 2)) == 2)
         {
                 *ch = buf[0];
                 return true;
@@ -175,10 +195,11 @@ static bool intel_sdvo_read_byte(struct intel_output *intel_output, u8 addr,
 static bool intel_sdvo_write_byte(struct intel_output *intel_output, int addr,
                                   u8 ch)
 {
+        struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
         u8 out_buf[2];
         struct i2c_msg msgs[] = {
                 {
-                        .addr = intel_output->i2c_bus->slave_addr,
+                        .addr = sdvo_priv->slave_addr >> 1,
                         .flags = 0,
                         .len = 2,
                         .buf = out_buf,
@@ -188,7 +209,7 @@ static bool intel_sdvo_write_byte(struct intel_output *intel_output, int addr,
         out_buf[0] = addr;
         out_buf[1] = ch;
 
-        if (i2c_transfer(&intel_output->i2c_bus->adapter, msgs, 1) == 1)
+        if (i2c_transfer(intel_output->i2c_bus, msgs, 1) == 1)
         {
                 return true;
         }
@@ -592,6 +613,7 @@ intel_sdvo_create_preferred_input_timing(struct intel_output *output,
                                          uint16_t height)
 {
         struct intel_sdvo_preferred_input_timing_args args;
+        struct intel_sdvo_priv *sdvo_priv = output->dev_priv;
         uint8_t status;
 
         memset(&args, 0, sizeof(args));
@@ -599,7 +621,12 @@ intel_sdvo_create_preferred_input_timing(struct intel_output *output,
         args.width = width;
         args.height = height;
         args.interlace = 0;
-        args.scaled = 0;
+
+        if (sdvo_priv->is_lvds &&
+           (sdvo_priv->sdvo_lvds_fixed_mode->hdisplay != width ||
+            sdvo_priv->sdvo_lvds_fixed_mode->vdisplay != height))
+                args.scaled = 1;
+
         intel_sdvo_write_cmd(output, SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING,
                              &args, sizeof(args));
         status = intel_sdvo_read_response(output, NULL, 0);
@@ -944,12 +971,7 @@ static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder,
         struct intel_output *output = enc_to_intel_output(encoder);
         struct intel_sdvo_priv *dev_priv = output->dev_priv;
 
-        if (!dev_priv->is_tv) {
-                /* Make the CRTC code factor in the SDVO pixel multiplier.  The
-                 * SDVO device will be told of the multiplier during mode_set.
-                 */
-                adjusted_mode->clock *= intel_sdvo_get_pixel_multiplier(mode);
-        } else {
+        if (dev_priv->is_tv) {
                 struct intel_sdvo_dtd output_dtd;
                 bool success;
 
@@ -980,6 +1002,47 @@ static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder,
                         intel_sdvo_get_preferred_input_timing(output,
                                                              &input_dtd);
                         intel_sdvo_get_mode_from_dtd(adjusted_mode, &input_dtd);
+                        dev_priv->sdvo_flags = input_dtd.part2.sdvo_flags;
+
+                        drm_mode_set_crtcinfo(adjusted_mode, 0);
+
+                        mode->clock = adjusted_mode->clock;
+
+                        adjusted_mode->clock *=
+                                intel_sdvo_get_pixel_multiplier(mode);
+                } else {
+                        return false;
+                }
+        } else if (dev_priv->is_lvds) {
+                struct intel_sdvo_dtd output_dtd;
+                bool success;
+
+                drm_mode_set_crtcinfo(dev_priv->sdvo_lvds_fixed_mode, 0);
+                /* Set output timings */
+                intel_sdvo_get_dtd_from_mode(&output_dtd,
+                                dev_priv->sdvo_lvds_fixed_mode);
+
+                intel_sdvo_set_target_output(output,
+                                             dev_priv->controlled_output);
+                intel_sdvo_set_output_timing(output, &output_dtd);
+
+                /* Set the input timing to the screen. Assume always input 0. */
+                intel_sdvo_set_target_input(output, true, false);
+
+
+                success = intel_sdvo_create_preferred_input_timing(
+                                output,
+                                mode->clock / 10,
+                                mode->hdisplay,
+                                mode->vdisplay);
+
+                if (success) {
+                        struct intel_sdvo_dtd input_dtd;
+
+                        intel_sdvo_get_preferred_input_timing(output,
+                                                             &input_dtd);
+                        intel_sdvo_get_mode_from_dtd(adjusted_mode, &input_dtd);
+                        dev_priv->sdvo_flags = input_dtd.part2.sdvo_flags;
 
                         drm_mode_set_crtcinfo(adjusted_mode, 0);
 
@@ -990,6 +1053,12 @@ static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder,
                 } else {
                         return false;
                 }
+
+        } else {
+                /* Make the CRTC code factor in the SDVO pixel multiplier.  The
+                 * SDVO device will be told of the multiplier during mode_set.
+                 */
+                adjusted_mode->clock *= intel_sdvo_get_pixel_multiplier(mode);
         }
         return true;
 }
@@ -1033,15 +1102,16 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
 
         /* We have tried to get input timing in mode_fixup, and filled into
            adjusted_mode */
-        if (sdvo_priv->is_tv)
+        if (sdvo_priv->is_tv || sdvo_priv->is_lvds) {
                 intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode);
-        else
+                input_dtd.part2.sdvo_flags = sdvo_priv->sdvo_flags;
+        } else
                 intel_sdvo_get_dtd_from_mode(&input_dtd, mode);
 
         /* If it's a TV, we already set the output timing in mode_fixup.
          * Otherwise, the output timing is equal to the input timing.
          */
-        if (!sdvo_priv->is_tv) {
+        if (!sdvo_priv->is_tv && !sdvo_priv->is_lvds) {
                 /* Set the output timing to the screen */
                 intel_sdvo_set_target_output(output,
                                              sdvo_priv->controlled_output);
@@ -1116,6 +1186,8 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
                 sdvox |= (sdvo_pixel_multiply - 1) << SDVO_PORT_MULTIPLY_SHIFT;
         }
 
+        if (sdvo_priv->sdvo_flags & SDVO_NEED_TO_STALL)
+                sdvox |= SDVO_STALL_SELECT;
         intel_sdvo_write_sdvox(output, sdvox);
 }
 
@@ -1276,6 +1348,17 @@ static int intel_sdvo_mode_valid(struct drm_connector *connector,
         if (sdvo_priv->pixel_clock_max < mode->clock)
                 return MODE_CLOCK_HIGH;
 
+        if (sdvo_priv->is_lvds == true) {
+                if (sdvo_priv->sdvo_lvds_fixed_mode == NULL)
+                        return MODE_PANEL;
+
+                if (mode->hdisplay > sdvo_priv->sdvo_lvds_fixed_mode->hdisplay)
+                        return MODE_PANEL;
+
+                if (mode->vdisplay > sdvo_priv->sdvo_lvds_fixed_mode->vdisplay)
+                        return MODE_PANEL;
+        }
+
         return MODE_OK;
 }
 
@@ -1362,42 +1445,96 @@ void intel_sdvo_set_hotplug(struct drm_connector *connector, int on)
         intel_sdvo_read_response(intel_output, &response, 2);
 }
 
-static void
-intel_sdvo_hdmi_sink_detect(struct drm_connector *connector)
+static bool
+intel_sdvo_multifunc_encoder(struct intel_output *intel_output)
+{
+        struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+        int caps = 0;
+
+        if (sdvo_priv->caps.output_flags &
+                (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1))
+                caps++;
+        if (sdvo_priv->caps.output_flags &
+                (SDVO_OUTPUT_RGB0 | SDVO_OUTPUT_RGB1))
+                caps++;
+        if (sdvo_priv->caps.output_flags &
+                (SDVO_OUTPUT_SVID0 | SDVO_OUTPUT_SVID0))
+                caps++;
+        if (sdvo_priv->caps.output_flags &
+                (SDVO_OUTPUT_CVBS0 | SDVO_OUTPUT_CVBS1))
+                caps++;
+        if (sdvo_priv->caps.output_flags &
+                (SDVO_OUTPUT_YPRPB0 | SDVO_OUTPUT_YPRPB1))
+                caps++;
+
+        if (sdvo_priv->caps.output_flags &
+                (SDVO_OUTPUT_SCART0 | SDVO_OUTPUT_SCART1))
+                caps++;
+
+        if (sdvo_priv->caps.output_flags &
+                (SDVO_OUTPUT_LVDS0 | SDVO_OUTPUT_LVDS1))
+                caps++;
+
+        return (caps > 1);
+}
+
+enum drm_connector_status
+intel_sdvo_hdmi_sink_detect(struct drm_connector *connector, u16 response)
 {
         struct intel_output *intel_output = to_intel_output(connector);
         struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+        enum drm_connector_status status = connector_status_connected;
         struct edid *edid = NULL;
 
-        intel_sdvo_set_control_bus_switch(intel_output, sdvo_priv->ddc_bus);
         edid = drm_get_edid(&intel_output->base,
-                            &intel_output->ddc_bus->adapter);
+                            intel_output->ddc_bus);
         if (edid != NULL) {
-                sdvo_priv->is_hdmi = drm_detect_hdmi_monitor(edid);
+                /* Don't report the output as connected if it's a DVI-I
+                 * connector with a non-digital EDID coming out.
+                 */
+                if (response & (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1)) {
+                        if (edid->input & DRM_EDID_INPUT_DIGITAL)
+                                sdvo_priv->is_hdmi =
+                                        drm_detect_hdmi_monitor(edid);
+                        else
+                                status = connector_status_disconnected;
+                }
+
                 kfree(edid);
                 intel_output->base.display_info.raw_edid = NULL;
-        }
+
+        } else if (response & (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1))
+                status = connector_status_disconnected;
+
+        return status;
 }
 
 static enum drm_connector_status intel_sdvo_detect(struct drm_connector *connector)
 {
-        u8 response[2];
+        uint16_t response;
         u8 status;
         struct intel_output *intel_output = to_intel_output(connector);
+        struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
 
         intel_sdvo_write_cmd(intel_output, SDVO_CMD_GET_ATTACHED_DISPLAYS, NULL, 0);
         status = intel_sdvo_read_response(intel_output, &response, 2);
 
-        DRM_DEBUG("SDVO response %d %d\n", response[0], response[1]);
+        DRM_DEBUG("SDVO response %d %d\n", response & 0xff, response >> 8);
 
         if (status != SDVO_CMD_STATUS_SUCCESS)
                 return connector_status_unknown;
 
-        if ((response[0] != 0) || (response[1] != 0)) {
-                intel_sdvo_hdmi_sink_detect(connector);
-                return connector_status_connected;
-        } else
+        if (response == 0)
                 return connector_status_disconnected;
+
+        if (intel_sdvo_multifunc_encoder(intel_output) &&
+                sdvo_priv->attached_output != response) {
+                if (sdvo_priv->controlled_output != response &&
+                        intel_sdvo_output_setup(intel_output, response) != true)
+                        return connector_status_unknown;
+                sdvo_priv->attached_output = response;
+        }
+        return intel_sdvo_hdmi_sink_detect(connector, response);
 }
 
 static void intel_sdvo_get_ddc_modes(struct drm_connector *connector)
@@ -1549,23 +1686,21 @@ static void intel_sdvo_get_tv_modes(struct drm_connector *connector)
 static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
 {
         struct intel_output *intel_output = to_intel_output(connector);
-        struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
         struct drm_i915_private *dev_priv = connector->dev->dev_private;
+        struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+        struct drm_display_mode *newmode;
 
         /*
          * Attempt to get the mode list from DDC.
          * Assume that the preferred modes are
          * arranged in priority order.
          */
-        /* set the bus switch and get the modes */
-        intel_sdvo_set_control_bus_switch(intel_output, sdvo_priv->ddc_bus);
         intel_ddc_get_modes(intel_output);
         if (list_empty(&connector->probed_modes) == false)
-                return;
+                goto end;
 
         /* Fetch modes from VBT */
         if (dev_priv->sdvo_lvds_vbt_mode != NULL) {
-                struct drm_display_mode *newmode;
                 newmode = drm_mode_duplicate(connector->dev,
                                              dev_priv->sdvo_lvds_vbt_mode);
                 if (newmode != NULL) {
@@ -1575,6 +1710,16 @@ static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
                         drm_mode_probed_add(connector, newmode);
                 }
         }
+
+end:
+        list_for_each_entry(newmode, &connector->probed_modes, head) {
+                if (newmode->type & DRM_MODE_TYPE_PREFERRED) {
+                        sdvo_priv->sdvo_lvds_fixed_mode =
+                                drm_mode_duplicate(connector->dev, newmode);
+                        break;
+                }
+        }
+
 }
 
 static int intel_sdvo_get_modes(struct drm_connector *connector)
@@ -1597,14 +1742,20 @@ static int intel_sdvo_get_modes(struct drm_connector *connector)
 static void intel_sdvo_destroy(struct drm_connector *connector)
 {
         struct intel_output *intel_output = to_intel_output(connector);
+        struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
 
         if (intel_output->i2c_bus)
                 intel_i2c_destroy(intel_output->i2c_bus);
         if (intel_output->ddc_bus)
                 intel_i2c_destroy(intel_output->ddc_bus);
 
+        if (sdvo_priv->sdvo_lvds_fixed_mode != NULL)
+                drm_mode_destroy(connector->dev,
+                                 sdvo_priv->sdvo_lvds_fixed_mode);
+
         drm_sysfs_connector_remove(connector);
         drm_connector_cleanup(connector);
+
         kfree(intel_output);
 }
 
@@ -1709,7 +1860,7 @@ intel_sdvo_chan_to_intel_output(struct intel_i2c_chan *chan)
 
         list_for_each_entry(connector,
                         &dev->mode_config.connector_list, head) {
-                if (to_intel_output(connector)->ddc_bus == chan) {
+                if (to_intel_output(connector)->ddc_bus == &chan->adapter) {
                         intel_output = to_intel_output(connector);
                         break;
                 }
@@ -1723,7 +1874,7 @@ static int intel_sdvo_master_xfer(struct i2c_adapter *i2c_adap,
         struct intel_output *intel_output;
         struct intel_sdvo_priv *sdvo_priv;
         struct i2c_algo_bit_data *algo_data;
-        struct i2c_algorithm *algo;
+        const struct i2c_algorithm *algo;
 
         algo_data = (struct i2c_algo_bit_data *)i2c_adap->algo_data;
         intel_output =
@@ -1733,7 +1884,7 @@ static int intel_sdvo_master_xfer(struct i2c_adapter *i2c_adap,
                 return -EINVAL;
 
         sdvo_priv = intel_output->dev_priv;
-        algo = (struct i2c_algorithm *)intel_output->i2c_bus->adapter.algo;
+        algo = intel_output->i2c_bus->algo;
 
         intel_sdvo_set_control_bus_switch(intel_output, sdvo_priv->ddc_bus);
         return algo->master_xfer(i2c_adap, msgs, num);
@@ -1780,18 +1931,101 @@ intel_sdvo_get_slave_addr(struct drm_device *dev, int output_device)
                 return 0x72;
 }
 
+static bool
+intel_sdvo_output_setup(struct intel_output *intel_output, uint16_t flags)
+{
+        struct drm_connector *connector = &intel_output->base;
+        struct drm_encoder *encoder = &intel_output->enc;
+        struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+        bool ret = true, registered = false;
+
+        sdvo_priv->is_tv = false;
+        intel_output->needs_tv_clock = false;
+        sdvo_priv->is_lvds = false;
+
+        if (device_is_registered(&connector->kdev)) {
+                drm_sysfs_connector_remove(connector);
+                registered = true;
+        }
+
+        if (flags &
+            (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1)) {
+                if (sdvo_priv->caps.output_flags & SDVO_OUTPUT_TMDS0)
+                        sdvo_priv->controlled_output = SDVO_OUTPUT_TMDS0;
+                else
+                        sdvo_priv->controlled_output = SDVO_OUTPUT_TMDS1;
+
+                encoder->encoder_type = DRM_MODE_ENCODER_TMDS;
+                connector->connector_type = DRM_MODE_CONNECTOR_DVID;
+
+                if (intel_sdvo_get_supp_encode(intel_output,
+                                               &sdvo_priv->encode) &&
+                    intel_sdvo_get_digital_encoding_mode(intel_output) &&
+                    sdvo_priv->is_hdmi) {
+                        /* enable hdmi encoding mode if supported */
+                        intel_sdvo_set_encode(intel_output, SDVO_ENCODE_HDMI);
+                        intel_sdvo_set_colorimetry(intel_output,
+                                                   SDVO_COLORIMETRY_RGB256);
+                        connector->connector_type = DRM_MODE_CONNECTOR_HDMIA;
+                }
+        } else if (flags & SDVO_OUTPUT_SVID0) {
+
+                sdvo_priv->controlled_output = SDVO_OUTPUT_SVID0;
+                encoder->encoder_type = DRM_MODE_ENCODER_TVDAC;
+                connector->connector_type = DRM_MODE_CONNECTOR_SVIDEO;
+                sdvo_priv->is_tv = true;
+                intel_output->needs_tv_clock = true;
+        } else if (flags & SDVO_OUTPUT_RGB0) {
+
+                sdvo_priv->controlled_output = SDVO_OUTPUT_RGB0;
+                encoder->encoder_type = DRM_MODE_ENCODER_DAC;
+                connector->connector_type = DRM_MODE_CONNECTOR_VGA;
+        } else if (flags & SDVO_OUTPUT_RGB1) {
+
+                sdvo_priv->controlled_output = SDVO_OUTPUT_RGB1;
+                encoder->encoder_type = DRM_MODE_ENCODER_DAC;
+                connector->connector_type = DRM_MODE_CONNECTOR_VGA;
+        } else if (flags & SDVO_OUTPUT_LVDS0) {
+
+                sdvo_priv->controlled_output = SDVO_OUTPUT_LVDS0;
+                encoder->encoder_type = DRM_MODE_ENCODER_LVDS;
+                connector->connector_type = DRM_MODE_CONNECTOR_LVDS;
+                sdvo_priv->is_lvds = true;
+        } else if (flags & SDVO_OUTPUT_LVDS1) {
+
+                sdvo_priv->controlled_output = SDVO_OUTPUT_LVDS1;
+                encoder->encoder_type = DRM_MODE_ENCODER_LVDS;
+                connector->connector_type = DRM_MODE_CONNECTOR_LVDS;
+                sdvo_priv->is_lvds = true;
+        } else {
+
+                unsigned char bytes[2];
+
+                sdvo_priv->controlled_output = 0;
+                memcpy(bytes, &sdvo_priv->caps.output_flags, 2);
+                DRM_DEBUG_KMS(I915_SDVO,
+                                "%s: Unknown SDVO output type (0x%02x%02x)\n",
+                                  SDVO_NAME(sdvo_priv),
+                                  bytes[0], bytes[1]);
+                ret = false;
+        }
+
+        if (ret && registered)
+                ret = drm_sysfs_connector_add(connector) == 0 ? true : false;
+
+
+        return ret;
+
+}
+
 bool intel_sdvo_init(struct drm_device *dev, int output_device)
 {
         struct drm_connector *connector;
         struct intel_output *intel_output;
         struct intel_sdvo_priv *sdvo_priv;
-        struct intel_i2c_chan *i2cbus = NULL;
-        struct intel_i2c_chan *ddcbus = NULL;
-        int connector_type;
+
         u8 ch[0x40];
         int i;
-        int encoder_type, output_id;
-        u8 slave_addr;
 
         intel_output = kcalloc(sizeof(struct intel_output)+sizeof(struct intel_sdvo_priv), 1, GFP_KERNEL);
         if (!intel_output) {
@@ -1799,29 +2033,24 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
         }
 
         sdvo_priv = (struct intel_sdvo_priv *)(intel_output + 1);
+        sdvo_priv->output_device = output_device;
+
+        intel_output->dev_priv = sdvo_priv;
         intel_output->type = INTEL_OUTPUT_SDVO;
 
         /* setup the DDC bus. */
         if (output_device == SDVOB)
-                i2cbus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOB");
+                intel_output->i2c_bus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOB");
         else
-                i2cbus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOC");
+                intel_output->i2c_bus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOC");
 
-        if (!i2cbus)
+        if (!intel_output->i2c_bus)
                 goto err_inteloutput;
 
-        slave_addr = intel_sdvo_get_slave_addr(dev, output_device);
-        sdvo_priv->i2c_bus = i2cbus;
+        sdvo_priv->slave_addr = intel_sdvo_get_slave_addr(dev, output_device);
 
-        if (output_device == SDVOB) {
-                output_id = 1;
-        } else {
-                output_id = 2;
-        }
-        sdvo_priv->i2c_bus->slave_addr = slave_addr >> 1;
-        sdvo_priv->output_device = output_device;
-        intel_output->i2c_bus = i2cbus;
-        intel_output->dev_priv = sdvo_priv;
+        /* Save the bit-banging i2c functionality for use by the DDC wrapper */
+        intel_sdvo_i2c_bit_algo.functionality = intel_output->i2c_bus->algo->functionality;
 
         /* Read the regs to test if we can talk to the device */
         for (i = 0; i < 0x40; i++) {
@@ -1835,101 +2064,39 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
 
         /* setup the DDC bus. */
         if (output_device == SDVOB)
-                ddcbus = intel_i2c_create(dev, GPIOE, "SDVOB DDC BUS");
+                intel_output->ddc_bus = intel_i2c_create(dev, GPIOE, "SDVOB DDC BUS");
         else
-                ddcbus = intel_i2c_create(dev, GPIOE, "SDVOC DDC BUS");
+                intel_output->ddc_bus = intel_i2c_create(dev, GPIOE, "SDVOC DDC BUS");
 
-        if (ddcbus == NULL)
+        if (intel_output->ddc_bus == NULL)
                 goto err_i2c;
 
-        intel_sdvo_i2c_bit_algo.functionality =
-                intel_output->i2c_bus->adapter.algo->functionality;
-        ddcbus->adapter.algo = &intel_sdvo_i2c_bit_algo;
-        intel_output->ddc_bus = ddcbus;
+        /* Wrap with our custom algo which switches to DDC mode */
+        intel_output->ddc_bus->algo = &intel_sdvo_i2c_bit_algo;
 
         /* In defaut case sdvo lvds is false */
-        sdvo_priv->is_lvds = false;
         intel_sdvo_get_capabilities(intel_output, &sdvo_priv->caps);
 
-        if (sdvo_priv->caps.output_flags &
-            (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1)) {
-                if (sdvo_priv->caps.output_flags & SDVO_OUTPUT_TMDS0)
-                        sdvo_priv->controlled_output = SDVO_OUTPUT_TMDS0;
-                else
-                        sdvo_priv->controlled_output = SDVO_OUTPUT_TMDS1;
-
-                encoder_type = DRM_MODE_ENCODER_TMDS;
-                connector_type = DRM_MODE_CONNECTOR_DVID;
-
-                if (intel_sdvo_get_supp_encode(intel_output,
-                                               &sdvo_priv->encode) &&
-                    intel_sdvo_get_digital_encoding_mode(intel_output) &&
-                    sdvo_priv->is_hdmi) {
-                        /* enable hdmi encoding mode if supported */
-                        intel_sdvo_set_encode(intel_output, SDVO_ENCODE_HDMI);
-                        intel_sdvo_set_colorimetry(intel_output,
-                                                   SDVO_COLORIMETRY_RGB256);
-                        connector_type = DRM_MODE_CONNECTOR_HDMIA;
-                }
-        }
-        else if (sdvo_priv->caps.output_flags & SDVO_OUTPUT_SVID0)
-        {
-                sdvo_priv->controlled_output = SDVO_OUTPUT_SVID0;
-                encoder_type = DRM_MODE_ENCODER_TVDAC;
-                connector_type = DRM_MODE_CONNECTOR_SVIDEO;
-                sdvo_priv->is_tv = true;
-                intel_output->needs_tv_clock = true;
-        }
-        else if (sdvo_priv->caps.output_flags & SDVO_OUTPUT_RGB0)
-        {
-                sdvo_priv->controlled_output = SDVO_OUTPUT_RGB0;
-                encoder_type = DRM_MODE_ENCODER_DAC;
-                connector_type = DRM_MODE_CONNECTOR_VGA;
-        }
-        else if (sdvo_priv->caps.output_flags & SDVO_OUTPUT_RGB1)
-        {
-                sdvo_priv->controlled_output = SDVO_OUTPUT_RGB1;
-                encoder_type = DRM_MODE_ENCODER_DAC;
-                connector_type = DRM_MODE_CONNECTOR_VGA;
-        }
-        else if (sdvo_priv->caps.output_flags & SDVO_OUTPUT_LVDS0)
-        {
-                sdvo_priv->controlled_output = SDVO_OUTPUT_LVDS0;
-                encoder_type = DRM_MODE_ENCODER_LVDS;
-                connector_type = DRM_MODE_CONNECTOR_LVDS;
-                sdvo_priv->is_lvds = true;
-        }
-        else if (sdvo_priv->caps.output_flags & SDVO_OUTPUT_LVDS1)
-        {
-                sdvo_priv->controlled_output = SDVO_OUTPUT_LVDS1;
-                encoder_type = DRM_MODE_ENCODER_LVDS;
-                connector_type = DRM_MODE_CONNECTOR_LVDS;
-                sdvo_priv->is_lvds = true;
-        }
-        else
-        {
-                unsigned char bytes[2];
-
-                sdvo_priv->controlled_output = 0;
-                memcpy (bytes, &sdvo_priv->caps.output_flags, 2);
-                DRM_DEBUG_KMS(I915_SDVO,
-                                "%s: Unknown SDVO output type (0x%02x%02x)\n",
-                                  SDVO_NAME(sdvo_priv),
-                                  bytes[0], bytes[1]);
-                encoder_type = DRM_MODE_ENCODER_NONE;
-                connector_type = DRM_MODE_CONNECTOR_Unknown;
+        if (intel_sdvo_output_setup(intel_output,
+                                    sdvo_priv->caps.output_flags) != true) {
+                DRM_DEBUG("SDVO output failed to setup on SDVO%c\n",
+                          output_device == SDVOB ? 'B' : 'C');
                 goto err_i2c;
         }
 
+
         connector = &intel_output->base;
         drm_connector_init(dev, connector, &intel_sdvo_connector_funcs,
-                           connector_type);
+                           connector->connector_type);
+
         drm_connector_helper_add(connector, &intel_sdvo_connector_helper_funcs);
         connector->interlace_allowed = 0;
         connector->doublescan_allowed = 0;
         connector->display_info.subpixel_order = SubPixelHorizontalRGB;
 
-        drm_encoder_init(dev, &intel_output->enc, &intel_sdvo_enc_funcs, encoder_type);
+        drm_encoder_init(dev, &intel_output->enc,
+                        &intel_sdvo_enc_funcs, intel_output->enc.encoder_type);
+
         drm_encoder_helper_add(&intel_output->enc, &intel_sdvo_helper_funcs);
 
         drm_mode_connector_attach_encoder(&intel_output->base, &intel_output->enc);
@@ -1965,9 +2132,10 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
         return true;
 
 err_i2c:
-        if (ddcbus != NULL)
+        if (intel_output->ddc_bus != NULL)
                 intel_i2c_destroy(intel_output->ddc_bus);
-        intel_i2c_destroy(intel_output->i2c_bus);
+        if (intel_output->i2c_bus != NULL)
+                intel_i2c_destroy(intel_output->i2c_bus);
 err_inteloutput:
         kfree(intel_output);
 
diff --git a/drivers/gpu/drm/i915/intel_sdvo_regs.h b/drivers/gpu/drm/i915/intel_sdvo_regs.h
index 193938b7d7f9..ba5cdf8ae40b 100644
--- a/drivers/gpu/drm/i915/intel_sdvo_regs.h
+++ b/drivers/gpu/drm/i915/intel_sdvo_regs.h
@@ -715,6 +715,7 @@ struct intel_sdvo_enhancements_arg {
   #define SDVO_HBUF_TX_ONCE     (2 << 6)
   #define SDVO_HBUF_TX_VSYNC    (3 << 6)
 #define SDVO_CMD_GET_AUDIO_TX_INFO      0x9c
+#define SDVO_NEED_TO_STALL  (1 << 7)
 
 struct intel_sdvo_encode{
     u8 dvi_rev;
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index ea68992e4416..da4ab4dc1630 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -1383,34 +1383,31 @@ intel_tv_detect_type (struct drm_crtc *crtc, struct intel_output *intel_output)
         /*
          * Detect TV by polling)
          */
-        if (intel_output->load_detect_temp) {
-                /* TV not currently running, prod it with destructive detect */
-                save_tv_dac = tv_dac;
-                tv_ctl = I915_READ(TV_CTL);
-                save_tv_ctl = tv_ctl;
-                tv_ctl &= ~TV_ENC_ENABLE;
-                tv_ctl &= ~TV_TEST_MODE_MASK;
-                tv_ctl |= TV_TEST_MODE_MONITOR_DETECT;
-                tv_dac &= ~TVDAC_SENSE_MASK;
-                tv_dac &= ~DAC_A_MASK;
-                tv_dac &= ~DAC_B_MASK;
-                tv_dac &= ~DAC_C_MASK;
-                tv_dac |= (TVDAC_STATE_CHG_EN |
-                           TVDAC_A_SENSE_CTL |
-                           TVDAC_B_SENSE_CTL |
-                           TVDAC_C_SENSE_CTL |
-                           DAC_CTL_OVERRIDE |
-                           DAC_A_0_7_V |
-                           DAC_B_0_7_V |
-                           DAC_C_0_7_V);
-                I915_WRITE(TV_CTL, tv_ctl);
-                I915_WRITE(TV_DAC, tv_dac);
-                intel_wait_for_vblank(dev);
-                tv_dac = I915_READ(TV_DAC);
-                I915_WRITE(TV_DAC, save_tv_dac);
-                I915_WRITE(TV_CTL, save_tv_ctl);
-                intel_wait_for_vblank(dev);
-        }
+        save_tv_dac = tv_dac;
+        tv_ctl = I915_READ(TV_CTL);
+        save_tv_ctl = tv_ctl;
+        tv_ctl &= ~TV_ENC_ENABLE;
+        tv_ctl &= ~TV_TEST_MODE_MASK;
+        tv_ctl |= TV_TEST_MODE_MONITOR_DETECT;
+        tv_dac &= ~TVDAC_SENSE_MASK;
+        tv_dac &= ~DAC_A_MASK;
+        tv_dac &= ~DAC_B_MASK;
+        tv_dac &= ~DAC_C_MASK;
+        tv_dac |= (TVDAC_STATE_CHG_EN |
+                   TVDAC_A_SENSE_CTL |
+                   TVDAC_B_SENSE_CTL |
+                   TVDAC_C_SENSE_CTL |
+                   DAC_CTL_OVERRIDE |
+                   DAC_A_0_7_V |
+                   DAC_B_0_7_V |
+                   DAC_C_0_7_V);
+        I915_WRITE(TV_CTL, tv_ctl);
+        I915_WRITE(TV_DAC, tv_dac);
+        intel_wait_for_vblank(dev);
+        tv_dac = I915_READ(TV_DAC);
+        I915_WRITE(TV_DAC, save_tv_dac);
+        I915_WRITE(TV_CTL, save_tv_ctl);
+        intel_wait_for_vblank(dev);
         /*
          *  A B C
          *  0 1 1 Composite
@@ -1493,6 +1490,27 @@ static struct input_res {
         {"1920x1080", 1920, 1080},
 };
 
+/*
+ * Chose preferred mode  according to line number of TV format
+ */
+static void
+intel_tv_chose_preferred_modes(struct drm_connector *connector,
+                               struct drm_display_mode *mode_ptr)
+{
+        struct intel_output *intel_output = to_intel_output(connector);
+        const struct tv_mode *tv_mode = intel_tv_mode_find(intel_output);
+
+        if (tv_mode->nbr_end < 480 && mode_ptr->vdisplay == 480)
+                mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
+        else if (tv_mode->nbr_end > 480) {
+                if (tv_mode->progressive == true && tv_mode->nbr_end < 720) {
+                        if (mode_ptr->vdisplay == 720)
+                                mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
+                } else if (mode_ptr->vdisplay == 1080)
+                                mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
+        }
+}
+
 /**
  * Stub get_modes function.
  *
@@ -1547,6 +1565,7 @@ intel_tv_get_modes(struct drm_connector *connector)
                 mode_ptr->clock = (int) tmp;
 
                 mode_ptr->type = DRM_MODE_TYPE_DRIVER;
+                intel_tv_chose_preferred_modes(connector, mode_ptr);
                 drm_mode_probed_add(connector, mode_ptr);
                 count++;
         }
diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile
index 5fae1e074b4b..013d38059943 100644
--- a/drivers/gpu/drm/radeon/Makefile
+++ b/drivers/gpu/drm/radeon/Makefile
@@ -13,7 +13,8 @@ radeon-$(CONFIG_DRM_RADEON_KMS) += radeon_device.o radeon_kms.o \
         radeon_encoders.o radeon_display.o radeon_cursor.o radeon_i2c.o \
         radeon_clocks.o radeon_fb.o radeon_gem.o radeon_ring.o radeon_irq_kms.o \
         radeon_cs.o radeon_bios.o radeon_benchmark.o r100.o r300.o r420.o \
-        rs400.o rs600.o rs690.o rv515.o r520.o r600.o rs780.o rv770.o
+        rs400.o rs600.o rs690.o rv515.o r520.o r600.o rs780.o rv770.o \
+        radeon_test.o
 
 radeon-$(CONFIG_COMPAT) += radeon_ioc32.o
 
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index c0080cc9bf8d..74d034f77c6b 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -31,6 +31,132 @@
 #include "atom.h"
 #include "atom-bits.h"
 
+static void atombios_overscan_setup(struct drm_crtc *crtc,
+                                    struct drm_display_mode *mode,
+                                    struct drm_display_mode *adjusted_mode)
+{
+        struct drm_device *dev = crtc->dev;
+        struct radeon_device *rdev = dev->dev_private;
+        struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+        SET_CRTC_OVERSCAN_PS_ALLOCATION args;
+        int index = GetIndexIntoMasterTable(COMMAND, SetCRTC_OverScan);
+        int a1, a2;
+
+        memset(&args, 0, sizeof(args));
+
+        args.usOverscanRight = 0;
+        args.usOverscanLeft = 0;
+        args.usOverscanBottom = 0;
+        args.usOverscanTop = 0;
+        args.ucCRTC = radeon_crtc->crtc_id;
+
+        switch (radeon_crtc->rmx_type) {
+        case RMX_CENTER:
+                args.usOverscanTop = (adjusted_mode->crtc_vdisplay - mode->crtc_vdisplay) / 2;
+                args.usOverscanBottom = (adjusted_mode->crtc_vdisplay - mode->crtc_vdisplay) / 2;
+                args.usOverscanLeft = (adjusted_mode->crtc_hdisplay - mode->crtc_hdisplay) / 2;
+                args.usOverscanRight = (adjusted_mode->crtc_hdisplay - mode->crtc_hdisplay) / 2;
+                atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
+                break;
+        case RMX_ASPECT:
+                a1 = mode->crtc_vdisplay * adjusted_mode->crtc_hdisplay;
+                a2 = adjusted_mode->crtc_vdisplay * mode->crtc_hdisplay;
+
+                if (a1 > a2) {
+                        args.usOverscanLeft = (adjusted_mode->crtc_hdisplay - (a2 / mode->crtc_vdisplay)) / 2;
+                        args.usOverscanRight = (adjusted_mode->crtc_hdisplay - (a2 / mode->crtc_vdisplay)) / 2;
+                } else if (a2 > a1) {
+                        args.usOverscanLeft = (adjusted_mode->crtc_vdisplay - (a1 / mode->crtc_hdisplay)) / 2;
+                        args.usOverscanRight = (adjusted_mode->crtc_vdisplay - (a1 / mode->crtc_hdisplay)) / 2;
+                }
+                atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
+                break;
+        case RMX_FULL:
+        default:
+                args.usOverscanRight = 0;
+                args.usOverscanLeft = 0;
+                args.usOverscanBottom = 0;
+                args.usOverscanTop = 0;
+                atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
+                break;
+        }
+}
+
+static void atombios_scaler_setup(struct drm_crtc *crtc)
+{
+        struct drm_device *dev = crtc->dev;
+        struct radeon_device *rdev = dev->dev_private;
+        struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+        ENABLE_SCALER_PS_ALLOCATION args;
+        int index = GetIndexIntoMasterTable(COMMAND, EnableScaler);
+        /* fixme - fill in enc_priv for atom dac */
+        enum radeon_tv_std tv_std = TV_STD_NTSC;
+
+        if (!ASIC_IS_AVIVO(rdev) && radeon_crtc->crtc_id)
+                return;
+
+        memset(&args, 0, sizeof(args));
+
+        args.ucScaler = radeon_crtc->crtc_id;
+
+        if (radeon_crtc->devices & (ATOM_DEVICE_TV_SUPPORT)) {
+                switch (tv_std) {
+                case TV_STD_NTSC:
+                default:
+                        args.ucTVStandard = ATOM_TV_NTSC;
+                        break;
+                case TV_STD_PAL:
+                        args.ucTVStandard = ATOM_TV_PAL;
+                        break;
+                case TV_STD_PAL_M:
+                        args.ucTVStandard = ATOM_TV_PALM;
+                        break;
+                case TV_STD_PAL_60:
+                        args.ucTVStandard = ATOM_TV_PAL60;
+                        break;
+                case TV_STD_NTSC_J:
+                        args.ucTVStandard = ATOM_TV_NTSCJ;
+                        break;
+                case TV_STD_SCART_PAL:
+                        args.ucTVStandard = ATOM_TV_PAL; /* ??? */
+                        break;
+                case TV_STD_SECAM:
+                        args.ucTVStandard = ATOM_TV_SECAM;
+                        break;
+                case TV_STD_PAL_CN:
+                        args.ucTVStandard = ATOM_TV_PALCN;
+                        break;
+                }
+                args.ucEnable = SCALER_ENABLE_MULTITAP_MODE;
+        } else if (radeon_crtc->devices & (ATOM_DEVICE_CV_SUPPORT)) {
+                args.ucTVStandard = ATOM_TV_CV;
+                args.ucEnable = SCALER_ENABLE_MULTITAP_MODE;
+        } else {
+                switch (radeon_crtc->rmx_type) {
+                case RMX_FULL:
+                        args.ucEnable = ATOM_SCALER_EXPANSION;
+                        break;
+                case RMX_CENTER:
+                        args.ucEnable = ATOM_SCALER_CENTER;
+                        break;
+                case RMX_ASPECT:
+                        args.ucEnable = ATOM_SCALER_EXPANSION;
+                        break;
+                default:
+                        if (ASIC_IS_AVIVO(rdev))
+                                args.ucEnable = ATOM_SCALER_DISABLE;
+                        else
+                                args.ucEnable = ATOM_SCALER_CENTER;
+                        break;
+                }
+        }
+        atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
+        if (radeon_crtc->devices & (ATOM_DEVICE_CV_SUPPORT | ATOM_DEVICE_TV_SUPPORT)
+            && rdev->family >= CHIP_RV515 && rdev->family <= CHIP_RV570) {
+                atom_rv515_force_tv_scaler(rdev);
+        }
+}
+
 static void atombios_lock_crtc(struct drm_crtc *crtc, int lock)
 {
         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
@@ -203,6 +329,12 @@ void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
         if (ASIC_IS_AVIVO(rdev)) {
                 uint32_t ss_cntl;
 
+                if ((rdev->family == CHIP_RS600) ||
+                    (rdev->family == CHIP_RS690) ||
+                    (rdev->family == CHIP_RS740))
+                        pll_flags |= (RADEON_PLL_USE_FRAC_FB_DIV |
+                                      RADEON_PLL_PREFER_CLOSEST_LOWER);
+
                 if (ASIC_IS_DCE32(rdev) && mode->clock > 200000)        /* range limits??? */
                         pll_flags |= RADEON_PLL_PREFER_HIGH_FB_DIV;
                 else
@@ -321,7 +453,7 @@ int atombios_crtc_set_base(struct drm_crtc *crtc, int x, int y,
         struct drm_gem_object *obj;
         struct drm_radeon_gem_object *obj_priv;
         uint64_t fb_location;
-        uint32_t fb_format, fb_pitch_pixels;
+        uint32_t fb_format, fb_pitch_pixels, tiling_flags;
 
         if (!crtc->fb)
                 return -EINVAL;
@@ -358,7 +490,14 @@ int atombios_crtc_set_base(struct drm_crtc *crtc, int x, int y,
                 return -EINVAL;
         }
 
-        /* TODO tiling */
+        radeon_object_get_tiling_flags(obj->driver_private,
+                                       &tiling_flags, NULL);
+        if (tiling_flags & RADEON_TILING_MACRO)
+                fb_format |= AVIVO_D1GRPH_MACRO_ADDRESS_MODE;
+
+        if (tiling_flags & RADEON_TILING_MICRO)
+                fb_format |= AVIVO_D1GRPH_TILED;
+
         if (radeon_crtc->crtc_id == 0)
                 WREG32(AVIVO_D1VGA_CONTROL, 0);
         else
@@ -509,6 +648,9 @@ int atombios_crtc_mode_set(struct drm_crtc *crtc,
                 radeon_crtc_set_base(crtc, x, y, old_fb);
                 radeon_legacy_atom_set_surface(crtc);
         }
+        atombios_overscan_setup(crtc, mode, adjusted_mode);
+        atombios_scaler_setup(crtc);
+        radeon_bandwidth_update(rdev);
         return 0;
 }
 
@@ -516,6 +658,8 @@ static bool atombios_crtc_mode_fixup(struct drm_crtc *crtc,
                                      struct drm_display_mode *mode,
                                      struct drm_display_mode *adjusted_mode)
 {
+        if (!radeon_crtc_scaling_mode_fixup(crtc, mode, adjusted_mode))
+                return false;
         return true;
 }
 
@@ -548,148 +692,3 @@ void radeon_atombios_init_crtc(struct drm_device *dev,
                     AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL;
         drm_crtc_helper_add(&radeon_crtc->base, &atombios_helper_funcs);
 }
-
-void radeon_init_disp_bw_avivo(struct drm_device *dev,
-                               struct drm_display_mode *mode1,
-                               uint32_t pixel_bytes1,
-                               struct drm_display_mode *mode2,
-                               uint32_t pixel_bytes2)
-{
-        struct radeon_device *rdev = dev->dev_private;
-        fixed20_12 min_mem_eff;
-        fixed20_12 peak_disp_bw, mem_bw, pix_clk, pix_clk2, temp_ff;
-        fixed20_12 sclk_ff, mclk_ff;
-        uint32_t dc_lb_memory_split, temp;
-
-        min_mem_eff.full = rfixed_const_8(0);
-        if (rdev->disp_priority == 2) {
-                uint32_t mc_init_misc_lat_timer = 0;
-                if (rdev->family == CHIP_RV515)
-                        mc_init_misc_lat_timer =
-                            RREG32_MC(RV515_MC_INIT_MISC_LAT_TIMER);
-                else if (rdev->family == CHIP_RS690)
-                        mc_init_misc_lat_timer =
-                            RREG32_MC(RS690_MC_INIT_MISC_LAT_TIMER);
-
-                mc_init_misc_lat_timer &=
-                    ~(R300_MC_DISP1R_INIT_LAT_MASK <<
-                      R300_MC_DISP1R_INIT_LAT_SHIFT);
-                mc_init_misc_lat_timer &=
-                    ~(R300_MC_DISP0R_INIT_LAT_MASK <<
-                      R300_MC_DISP0R_INIT_LAT_SHIFT);
-
-                if (mode2)
-                        mc_init_misc_lat_timer |=
-                            (1 << R300_MC_DISP1R_INIT_LAT_SHIFT);
-                if (mode1)
-                        mc_init_misc_lat_timer |=
-                            (1 << R300_MC_DISP0R_INIT_LAT_SHIFT);
-
-                if (rdev->family == CHIP_RV515)
-                        WREG32_MC(RV515_MC_INIT_MISC_LAT_TIMER,
-                                  mc_init_misc_lat_timer);
-                else if (rdev->family == CHIP_RS690)
-                        WREG32_MC(RS690_MC_INIT_MISC_LAT_TIMER,
-                                  mc_init_misc_lat_timer);
-        }
-
-        /*
-         * determine is there is enough bw for current mode
-         */
-        temp_ff.full = rfixed_const(100);
-        mclk_ff.full = rfixed_const(rdev->clock.default_mclk);
-        mclk_ff.full = rfixed_div(mclk_ff, temp_ff);
-        sclk_ff.full = rfixed_const(rdev->clock.default_sclk);
-        sclk_ff.full = rfixed_div(sclk_ff, temp_ff);
-
-        temp = (rdev->mc.vram_width / 8) * (rdev->mc.vram_is_ddr ? 2 : 1);
-        temp_ff.full = rfixed_const(temp);
-        mem_bw.full = rfixed_mul(mclk_ff, temp_ff);
-        mem_bw.full = rfixed_mul(mem_bw, min_mem_eff);
-
-        pix_clk.full = 0;
-        pix_clk2.full = 0;
-        peak_disp_bw.full = 0;
-        if (mode1) {
-                temp_ff.full = rfixed_const(1000);
-                pix_clk.full = rfixed_const(mode1->clock);      /* convert to fixed point */
-                pix_clk.full = rfixed_div(pix_clk, temp_ff);
-                temp_ff.full = rfixed_const(pixel_bytes1);
-                peak_disp_bw.full += rfixed_mul(pix_clk, temp_ff);
-        }
-        if (mode2) {
-                temp_ff.full = rfixed_const(1000);
-                pix_clk2.full = rfixed_const(mode2->clock);     /* convert to fixed point */
-                pix_clk2.full = rfixed_div(pix_clk2, temp_ff);
-                temp_ff.full = rfixed_const(pixel_bytes2);
-                peak_disp_bw.full += rfixed_mul(pix_clk2, temp_ff);
-        }
-
-        if (peak_disp_bw.full >= mem_bw.full) {
-                DRM_ERROR
-                    ("You may not have enough display bandwidth for current mode\n"
-                     "If you have flickering problem, try to lower resolution, refresh rate, or color depth\n");
-                printk("peak disp bw %d, mem_bw %d\n",
-                       rfixed_trunc(peak_disp_bw), rfixed_trunc(mem_bw));
-        }
-
-        /*
-         * Line Buffer Setup
-         * There is a single line buffer shared by both display controllers.
-         * DC_LB_MEMORY_SPLIT controls how that line buffer is shared between the display
-         * controllers.  The paritioning can either be done manually or via one of four
-         * preset allocations specified in bits 1:0:
-         * 0 - line buffer is divided in half and shared between each display controller
-         * 1 - D1 gets 3/4 of the line buffer, D2 gets 1/4
-         * 2 - D1 gets the whole buffer
-         * 3 - D1 gets 1/4 of the line buffer, D2 gets 3/4
-         * Setting bit 2 of DC_LB_MEMORY_SPLIT controls switches to manual allocation mode.
-         * In manual allocation mode, D1 always starts at 0, D1 end/2 is specified in bits
-         * 14:4; D2 allocation follows D1.
-         */
-
-        /* is auto or manual better ? */
-        dc_lb_memory_split =
-            RREG32(AVIVO_DC_LB_MEMORY_SPLIT) & ~AVIVO_DC_LB_MEMORY_SPLIT_MASK;
-        dc_lb_memory_split &= ~AVIVO_DC_LB_MEMORY_SPLIT_SHIFT_MODE;
-#if 1
-        /* auto */
-        if (mode1 && mode2) {
-                if (mode1->hdisplay > mode2->hdisplay) {
-                        if (mode1->hdisplay > 2560)
-                                dc_lb_memory_split |=
-                                    AVIVO_DC_LB_MEMORY_SPLIT_D1_3Q_D2_1Q;
-                        else
-                                dc_lb_memory_split |=
-                                    AVIVO_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
-                } else if (mode2->hdisplay > mode1->hdisplay) {
-                        if (mode2->hdisplay > 2560)
-                                dc_lb_memory_split |=
-                                    AVIVO_DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q;
-                        else
-                                dc_lb_memory_split |=
-                                    AVIVO_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
-                } else
-                        dc_lb_memory_split |=
-                            AVIVO_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
-        } else if (mode1) {
-                dc_lb_memory_split |= AVIVO_DC_LB_MEMORY_SPLIT_D1_ONLY;
-        } else if (mode2) {
-                dc_lb_memory_split |= AVIVO_DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q;
-        }
-#else
-        /* manual */
-        dc_lb_memory_split |= AVIVO_DC_LB_MEMORY_SPLIT_SHIFT_MODE;
-        dc_lb_memory_split &=
-            ~(AVIVO_DC_LB_DISP1_END_ADR_MASK <<
-              AVIVO_DC_LB_DISP1_END_ADR_SHIFT);
-        if (mode1) {
-                dc_lb_memory_split |=
-                    ((((mode1->hdisplay / 2) + 64) & AVIVO_DC_LB_DISP1_END_ADR_MASK)
-                     << AVIVO_DC_LB_DISP1_END_ADR_SHIFT);
-        } else if (mode2) {
-                dc_lb_memory_split |= (0 << AVIVO_DC_LB_DISP1_END_ADR_SHIFT);
-        }
-#endif
-        WREG32(AVIVO_DC_LB_MEMORY_SPLIT, dc_lb_memory_split);
-}
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index c550932a108f..f1ba8ff41130 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -110,7 +110,7 @@ int r100_pci_gart_set_page(struct radeon_device *rdev, int i, uint64_t addr)
         if (i < 0 || i > rdev->gart.num_gpu_pages) {
                 return -EINVAL;
         }
-        rdev->gart.table.ram.ptr[i] = cpu_to_le32((uint32_t)addr);
+        rdev->gart.table.ram.ptr[i] = cpu_to_le32(lower_32_bits(addr));
         return 0;
 }
 
@@ -173,8 +173,12 @@ void r100_mc_setup(struct radeon_device *rdev)
                 DRM_ERROR("Failed to register debugfs file for R100 MC !\n");
         }
         /* Write VRAM size in case we are limiting it */
-        WREG32(RADEON_CONFIG_MEMSIZE, rdev->mc.vram_size);
-        tmp = rdev->mc.vram_location + rdev->mc.vram_size - 1;
+        WREG32(RADEON_CONFIG_MEMSIZE, rdev->mc.real_vram_size);
+        /* Novell bug 204882 for RN50/M6/M7 with 8/16/32MB VRAM,
+         * if the aperture is 64MB but we have 32MB VRAM
+         * we report only 32MB VRAM but we have to set MC_FB_LOCATION
+         * to 64MB, otherwise the gpu accidentially dies */
+        tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
         tmp = REG_SET(RADEON_MC_FB_TOP, tmp >> 16);
         tmp |= REG_SET(RADEON_MC_FB_START, rdev->mc.vram_location >> 16);
         WREG32(RADEON_MC_FB_LOCATION, tmp);
@@ -215,7 +219,6 @@ int r100_mc_init(struct radeon_device *rdev)
         r100_pci_gart_disable(rdev);
 
         /* Setup GPU memory space */
-        rdev->mc.vram_location = 0xFFFFFFFFUL;
         rdev->mc.gtt_location = 0xFFFFFFFFUL;
         if (rdev->flags & RADEON_IS_AGP) {
                 r = radeon_agp_init(rdev);
@@ -719,13 +722,14 @@ int r100_cs_packet_parse(struct radeon_cs_parser *p,
                          unsigned idx)
 {
         struct radeon_cs_chunk *ib_chunk = &p->chunks[p->chunk_ib_idx];
-        uint32_t header = ib_chunk->kdata[idx];
+        uint32_t header;
 
         if (idx >= ib_chunk->length_dw) {
                 DRM_ERROR("Can not parse packet at %d after CS end %d !\n",
                           idx, ib_chunk->length_dw);
                 return -EINVAL;
         }
+        header = ib_chunk->kdata[idx];
         pkt->idx = idx;
         pkt->type = CP_PACKET_GET_TYPE(header);
         pkt->count = CP_PACKET_GET_COUNT(header);
@@ -753,6 +757,102 @@ int r100_cs_packet_parse(struct radeon_cs_parser *p,
 }
 
 /**
+ * r100_cs_packet_next_vline() - parse userspace VLINE packet
+ * @parser:             parser structure holding parsing context.
+ *
+ * Userspace sends a special sequence for VLINE waits.
+ * PACKET0 - VLINE_START_END + value
+ * PACKET0 - WAIT_UNTIL +_value
+ * RELOC (P3) - crtc_id in reloc.
+ *
+ * This function parses this and relocates the VLINE START END
+ * and WAIT UNTIL packets to the correct crtc.
+ * It also detects a switched off crtc and nulls out the
+ * wait in that case.
+ */
+int r100_cs_packet_parse_vline(struct radeon_cs_parser *p)
+{
+        struct radeon_cs_chunk *ib_chunk;
+        struct drm_mode_object *obj;
+        struct drm_crtc *crtc;
+        struct radeon_crtc *radeon_crtc;
+        struct radeon_cs_packet p3reloc, waitreloc;
+        int crtc_id;
+        int r;
+        uint32_t header, h_idx, reg;
+
+        ib_chunk = &p->chunks[p->chunk_ib_idx];
+
+        /* parse the wait until */
+        r = r100_cs_packet_parse(p, &waitreloc, p->idx);
+        if (r)
+                return r;
+
+        /* check its a wait until and only 1 count */
+        if (waitreloc.reg != RADEON_WAIT_UNTIL ||
+            waitreloc.count != 0) {
+                DRM_ERROR("vline wait had illegal wait until segment\n");
+                r = -EINVAL;
+                return r;
+        }
+
+        if (ib_chunk->kdata[waitreloc.idx + 1] != RADEON_WAIT_CRTC_VLINE) {
+                DRM_ERROR("vline wait had illegal wait until\n");
+                r = -EINVAL;
+                return r;
+        }
+
+        /* jump over the NOP */
+        r = r100_cs_packet_parse(p, &p3reloc, p->idx);
+        if (r)
+                return r;
+
+        h_idx = p->idx - 2;
+        p->idx += waitreloc.count;
+        p->idx += p3reloc.count;
+
+        header = ib_chunk->kdata[h_idx];
+        crtc_id = ib_chunk->kdata[h_idx + 5];
+        reg = ib_chunk->kdata[h_idx] >> 2;
+        mutex_lock(&p->rdev->ddev->mode_config.mutex);
+        obj = drm_mode_object_find(p->rdev->ddev, crtc_id, DRM_MODE_OBJECT_CRTC);
+        if (!obj) {
+                DRM_ERROR("cannot find crtc %d\n", crtc_id);
+                r = -EINVAL;
+                goto out;
+        }
+        crtc = obj_to_crtc(obj);
+        radeon_crtc = to_radeon_crtc(crtc);
+        crtc_id = radeon_crtc->crtc_id;
+
+        if (!crtc->enabled) {
+                /* if the CRTC isn't enabled - we need to nop out the wait until */
+                ib_chunk->kdata[h_idx + 2] = PACKET2(0);
+                ib_chunk->kdata[h_idx + 3] = PACKET2(0);
+        } else if (crtc_id == 1) {
+                switch (reg) {
+                case AVIVO_D1MODE_VLINE_START_END:
+                        header &= R300_CP_PACKET0_REG_MASK;
+                        header |= AVIVO_D2MODE_VLINE_START_END >> 2;
+                        break;
+                case RADEON_CRTC_GUI_TRIG_VLINE:
+                        header &= R300_CP_PACKET0_REG_MASK;
+                        header |= RADEON_CRTC2_GUI_TRIG_VLINE >> 2;
+                        break;
+                default:
+                        DRM_ERROR("unknown crtc reloc\n");
+                        r = -EINVAL;
+                        goto out;
+                }
+                ib_chunk->kdata[h_idx] = header;
+                ib_chunk->kdata[h_idx + 3] |= RADEON_ENG_DISPLAY_SELECT_CRTC1;
+        }
+out:
+        mutex_unlock(&p->rdev->ddev->mode_config.mutex);
+        return r;
+}
+
+/**
  * r100_cs_packet_next_reloc() - parse next packet which should be reloc packet3
  * @parser:             parser structure holding parsing context.
  * @data:               pointer to relocation data
@@ -814,6 +914,7 @@ static int r100_packet0_check(struct radeon_cs_parser *p,
         unsigned idx;
         bool onereg;
         int r;
+        u32 tile_flags = 0;
 
         ib = p->ib->ptr;
         ib_chunk = &p->chunks[p->chunk_ib_idx];
@@ -825,6 +926,15 @@ static int r100_packet0_check(struct radeon_cs_parser *p,
         }
         for (i = 0; i <= pkt->count; i++, idx++, reg += 4) {
                 switch (reg) {
+                case RADEON_CRTC_GUI_TRIG_VLINE:
+                        r = r100_cs_packet_parse_vline(p);
+                        if (r) {
+                                DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
+                                                idx, reg);
+                                r100_cs_dump_packet(p, pkt);
+                                return r;
+                        }
+                        break;
                 /* FIXME: only allow PACKET3 blit? easier to check for out of
                  * range access */
                 case RADEON_DST_PITCH_OFFSET:
@@ -838,7 +948,20 @@ static int r100_packet0_check(struct radeon_cs_parser *p,
                         }
                         tmp = ib_chunk->kdata[idx] & 0x003fffff;
                         tmp += (((u32)reloc->lobj.gpu_offset) >> 10);
-                        ib[idx] = (ib_chunk->kdata[idx] & 0xffc00000) | tmp;
+
+                        if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO)
+                                tile_flags |= RADEON_DST_TILE_MACRO;
+                        if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO) {
+                                if (reg == RADEON_SRC_PITCH_OFFSET) {
+                                        DRM_ERROR("Cannot src blit from microtiled surface\n");
+                                        r100_cs_dump_packet(p, pkt);
+                                        return -EINVAL;
+                                }
+                                tile_flags |= RADEON_DST_TILE_MICRO;
+                        }
+
+                        tmp |= tile_flags;
+                        ib[idx] = (ib_chunk->kdata[idx] & 0x3fc00000) | tmp;
                         break;
                 case RADEON_RB3D_DEPTHOFFSET:
                 case RADEON_RB3D_COLOROFFSET:
@@ -869,6 +992,11 @@ static int r100_packet0_check(struct radeon_cs_parser *p,
                 case R300_TX_OFFSET_0+52:
                 case R300_TX_OFFSET_0+56:
                 case R300_TX_OFFSET_0+60:
+                        /* rn50 has no 3D engine so fail on any 3d setup */
+                        if (ASIC_IS_RN50(p->rdev)) {
+                                DRM_ERROR("attempt to use RN50 3D engine failed\n");
+                                return -EINVAL;
+                        }
                         r = r100_cs_packet_next_reloc(p, &reloc);
                         if (r) {
                                 DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
@@ -878,6 +1006,25 @@ static int r100_packet0_check(struct radeon_cs_parser *p,
                         }
                         ib[idx] = ib_chunk->kdata[idx] + ((u32)reloc->lobj.gpu_offset);
                         break;
+                case R300_RB3D_COLORPITCH0:
+                case RADEON_RB3D_COLORPITCH:
+                        r = r100_cs_packet_next_reloc(p, &reloc);
+                        if (r) {
+                                DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
+                                          idx, reg);
+                                r100_cs_dump_packet(p, pkt);
+                                return r;
+                        }
+
+                        if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO)
+                                tile_flags |= RADEON_COLOR_TILE_ENABLE;
+                        if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO)
+                                tile_flags |= RADEON_COLOR_MICROTILE_ENABLE;
+
+                        tmp = ib_chunk->kdata[idx] & ~(0x7 << 16);
+                        tmp |= tile_flags;
+                        ib[idx] = tmp;
+                        break;
                 default:
                         /* FIXME: we don't want to allow anyothers packet */
                         break;
@@ -1256,29 +1403,100 @@ static void r100_vram_get_type(struct radeon_device *rdev)
         }
 }
 
-void r100_vram_info(struct radeon_device *rdev)
+static u32 r100_get_accessible_vram(struct radeon_device *rdev)
 {
-        r100_vram_get_type(rdev);
+        u32 aper_size;
+        u8 byte;
+
+        aper_size = RREG32(RADEON_CONFIG_APER_SIZE);
+
+        /* Set HDP_APER_CNTL only on cards that are known not to be broken,
+         * that is has the 2nd generation multifunction PCI interface
+         */
+        if (rdev->family == CHIP_RV280 ||
+            rdev->family >= CHIP_RV350) {
+                WREG32_P(RADEON_HOST_PATH_CNTL, RADEON_HDP_APER_CNTL,
+                       ~RADEON_HDP_APER_CNTL);
+                DRM_INFO("Generation 2 PCI interface, using max accessible memory\n");
+                return aper_size * 2;
+        }
+
+        /* Older cards have all sorts of funny issues to deal with. First
+         * check if it's a multifunction card by reading the PCI config
+         * header type... Limit those to one aperture size
+         */
+        pci_read_config_byte(rdev->pdev, 0xe, &byte);
+        if (byte & 0x80) {
+                DRM_INFO("Generation 1 PCI interface in multifunction mode\n");
+                DRM_INFO("Limiting VRAM to one aperture\n");
+                return aper_size;
+        }
+
+        /* Single function older card. We read HDP_APER_CNTL to see how the BIOS
+         * have set it up. We don't write this as it's broken on some ASICs but
+         * we expect the BIOS to have done the right thing (might be too optimistic...)
+         */
+        if (RREG32(RADEON_HOST_PATH_CNTL) & RADEON_HDP_APER_CNTL)
+                return aper_size * 2;
+        return aper_size;
+}
+
+void r100_vram_init_sizes(struct radeon_device *rdev)
+{
+        u64 config_aper_size;
+        u32 accessible;
+
+        config_aper_size = RREG32(RADEON_CONFIG_APER_SIZE);
 
         if (rdev->flags & RADEON_IS_IGP) {
                 uint32_t tom;
                 /* read NB_TOM to get the amount of ram stolen for the GPU */
                 tom = RREG32(RADEON_NB_TOM);
-                rdev->mc.vram_size = (((tom >> 16) - (tom & 0xffff) + 1) << 16);
-                WREG32(RADEON_CONFIG_MEMSIZE, rdev->mc.vram_size);
+                rdev->mc.real_vram_size = (((tom >> 16) - (tom & 0xffff) + 1) << 16);
+                /* for IGPs we need to keep VRAM where it was put by the BIOS */
+                rdev->mc.vram_location = (tom & 0xffff) << 16;
+                WREG32(RADEON_CONFIG_MEMSIZE, rdev->mc.real_vram_size);
+                rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
         } else {
-                rdev->mc.vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
+                rdev->mc.real_vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
                 /* Some production boards of m6 will report 0
                  * if it's 8 MB
                  */
-                if (rdev->mc.vram_size == 0) {
-                        rdev->mc.vram_size = 8192 * 1024;
-                        WREG32(RADEON_CONFIG_MEMSIZE, rdev->mc.vram_size);
+                if (rdev->mc.real_vram_size == 0) {
+                        rdev->mc.real_vram_size = 8192 * 1024;
+                        WREG32(RADEON_CONFIG_MEMSIZE, rdev->mc.real_vram_size);
                 }
+                /* let driver place VRAM */
+                rdev->mc.vram_location = 0xFFFFFFFFUL;
+                 /* Fix for RN50, M6, M7 with 8/16/32(??) MBs of VRAM - 
+                  * Novell bug 204882 + along with lots of ubuntu ones */
+                if (config_aper_size > rdev->mc.real_vram_size)
+                        rdev->mc.mc_vram_size = config_aper_size;
+                else
+                        rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
         }
 
+        /* work out accessible VRAM */
+        accessible = r100_get_accessible_vram(rdev);
+
         rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
         rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
+
+        if (accessible > rdev->mc.aper_size)
+                accessible = rdev->mc.aper_size;
+
+        if (rdev->mc.mc_vram_size > rdev->mc.aper_size)
+                rdev->mc.mc_vram_size = rdev->mc.aper_size;
+
+        if (rdev->mc.real_vram_size > rdev->mc.aper_size)
+                rdev->mc.real_vram_size = rdev->mc.aper_size;
+}
+
+void r100_vram_info(struct radeon_device *rdev)
+{
+        r100_vram_get_type(rdev);
+
+        r100_vram_init_sizes(rdev);
 }
 
 
@@ -1533,3 +1751,530 @@ int r100_debugfs_mc_info_init(struct radeon_device *rdev)
         return 0;
 #endif
 }
+
+int r100_set_surface_reg(struct radeon_device *rdev, int reg,
+                         uint32_t tiling_flags, uint32_t pitch,
+                         uint32_t offset, uint32_t obj_size)
+{
+        int surf_index = reg * 16;
+        int flags = 0;
+
+        /* r100/r200 divide by 16 */
+        if (rdev->family < CHIP_R300)
+                flags = pitch / 16;
+        else
+                flags = pitch / 8;
+
+        if (rdev->family <= CHIP_RS200) {
+                if ((tiling_flags & (RADEON_TILING_MACRO|RADEON_TILING_MICRO))
+                                 == (RADEON_TILING_MACRO|RADEON_TILING_MICRO))
+                        flags |= RADEON_SURF_TILE_COLOR_BOTH;
+                if (tiling_flags & RADEON_TILING_MACRO)
+                        flags |= RADEON_SURF_TILE_COLOR_MACRO;
+        } else if (rdev->family <= CHIP_RV280) {
+                if (tiling_flags & (RADEON_TILING_MACRO))
+                        flags |= R200_SURF_TILE_COLOR_MACRO;
+                if (tiling_flags & RADEON_TILING_MICRO)
+                        flags |= R200_SURF_TILE_COLOR_MICRO;
+        } else {
+                if (tiling_flags & RADEON_TILING_MACRO)
+                        flags |= R300_SURF_TILE_MACRO;
+                if (tiling_flags & RADEON_TILING_MICRO)
+                        flags |= R300_SURF_TILE_MICRO;
+        }
+
+        DRM_DEBUG("writing surface %d %d %x %x\n", reg, flags, offset, offset+obj_size-1);
+        WREG32(RADEON_SURFACE0_INFO + surf_index, flags);
+        WREG32(RADEON_SURFACE0_LOWER_BOUND + surf_index, offset);
+        WREG32(RADEON_SURFACE0_UPPER_BOUND + surf_index, offset + obj_size - 1);
+        return 0;
+}
+
+void r100_clear_surface_reg(struct radeon_device *rdev, int reg)
+{
+        int surf_index = reg * 16;
+        WREG32(RADEON_SURFACE0_INFO + surf_index, 0);
+}
+
+void r100_bandwidth_update(struct radeon_device *rdev)
+{
+        fixed20_12 trcd_ff, trp_ff, tras_ff, trbs_ff, tcas_ff;
+        fixed20_12 sclk_ff, mclk_ff, sclk_eff_ff, sclk_delay_ff;
+        fixed20_12 peak_disp_bw, mem_bw, pix_clk, pix_clk2, temp_ff, crit_point_ff;
+        uint32_t temp, data, mem_trcd, mem_trp, mem_tras;
+        fixed20_12 memtcas_ff[8] = {
+                fixed_init(1),
+                fixed_init(2),
+                fixed_init(3),
+                fixed_init(0),
+                fixed_init_half(1),
+                fixed_init_half(2),
+                fixed_init(0),
+        };
+        fixed20_12 memtcas_rs480_ff[8] = {
+                fixed_init(0),
+                fixed_init(1),
+                fixed_init(2),
+                fixed_init(3),
+                fixed_init(0),
+                fixed_init_half(1),
+                fixed_init_half(2),
+                fixed_init_half(3),
+        };
+        fixed20_12 memtcas2_ff[8] = {
+                fixed_init(0),
+                fixed_init(1),
+                fixed_init(2),
+                fixed_init(3),
+                fixed_init(4),
+                fixed_init(5),
+                fixed_init(6),
+                fixed_init(7),
+        };
+        fixed20_12 memtrbs[8] = {
+                fixed_init(1),
+                fixed_init_half(1),
+                fixed_init(2),
+                fixed_init_half(2),
+                fixed_init(3),
+                fixed_init_half(3),
+                fixed_init(4),
+                fixed_init_half(4)
+        };
+        fixed20_12 memtrbs_r4xx[8] = {
+                fixed_init(4),
+                fixed_init(5),
+                fixed_init(6),
+                fixed_init(7),
+                fixed_init(8),
+                fixed_init(9),
+                fixed_init(10),
+                fixed_init(11)
+        };
+        fixed20_12 min_mem_eff;
+        fixed20_12 mc_latency_sclk, mc_latency_mclk, k1;
+        fixed20_12 cur_latency_mclk, cur_latency_sclk;
+        fixed20_12 disp_latency, disp_latency_overhead, disp_drain_rate,
+                disp_drain_rate2, read_return_rate;
+        fixed20_12 time_disp1_drop_priority;
+        int c;
+        int cur_size = 16;       /* in octawords */
+        int critical_point = 0, critical_point2;
+/*      uint32_t read_return_rate, time_disp1_drop_priority; */
+        int stop_req, max_stop_req;
+        struct drm_display_mode *mode1 = NULL;
+        struct drm_display_mode *mode2 = NULL;
+        uint32_t pixel_bytes1 = 0;
+        uint32_t pixel_bytes2 = 0;
+
+        if (rdev->mode_info.crtcs[0]->base.enabled) {
+                mode1 = &rdev->mode_info.crtcs[0]->base.mode;
+                pixel_bytes1 = rdev->mode_info.crtcs[0]->base.fb->bits_per_pixel / 8;
+        }
+        if (rdev->mode_info.crtcs[1]->base.enabled) {
+                mode2 = &rdev->mode_info.crtcs[1]->base.mode;
+                pixel_bytes2 = rdev->mode_info.crtcs[1]->base.fb->bits_per_pixel / 8;
+        }
+
+        min_mem_eff.full = rfixed_const_8(0);
+        /* get modes */
+        if ((rdev->disp_priority == 2) && ASIC_IS_R300(rdev)) {
+                uint32_t mc_init_misc_lat_timer = RREG32(R300_MC_INIT_MISC_LAT_TIMER);
+                mc_init_misc_lat_timer &= ~(R300_MC_DISP1R_INIT_LAT_MASK << R300_MC_DISP1R_INIT_LAT_SHIFT);
+                mc_init_misc_lat_timer &= ~(R300_MC_DISP0R_INIT_LAT_MASK << R300_MC_DISP0R_INIT_LAT_SHIFT);
+                /* check crtc enables */
+                if (mode2)
+                        mc_init_misc_lat_timer |= (1 << R300_MC_DISP1R_INIT_LAT_SHIFT);
+                if (mode1)
+                        mc_init_misc_lat_timer |= (1 << R300_MC_DISP0R_INIT_LAT_SHIFT);
+                WREG32(R300_MC_INIT_MISC_LAT_TIMER, mc_init_misc_lat_timer);
+        }
+
+        /*
+         * determine is there is enough bw for current mode
+         */
+        mclk_ff.full = rfixed_const(rdev->clock.default_mclk);
+        temp_ff.full = rfixed_const(100);
+        mclk_ff.full = rfixed_div(mclk_ff, temp_ff);
+        sclk_ff.full = rfixed_const(rdev->clock.default_sclk);
+        sclk_ff.full = rfixed_div(sclk_ff, temp_ff);
+
+        temp = (rdev->mc.vram_width / 8) * (rdev->mc.vram_is_ddr ? 2 : 1);
+        temp_ff.full = rfixed_const(temp);
+        mem_bw.full = rfixed_mul(mclk_ff, temp_ff);
+
+        pix_clk.full = 0;
+        pix_clk2.full = 0;
+        peak_disp_bw.full = 0;
+        if (mode1) {
+                temp_ff.full = rfixed_const(1000);
+                pix_clk.full = rfixed_const(mode1->clock); /* convert to fixed point */
+                pix_clk.full = rfixed_div(pix_clk, temp_ff);
+                temp_ff.full = rfixed_const(pixel_bytes1);
+                peak_disp_bw.full += rfixed_mul(pix_clk, temp_ff);
+        }
+        if (mode2) {
+                temp_ff.full = rfixed_const(1000);
+                pix_clk2.full = rfixed_const(mode2->clock); /* convert to fixed point */
+                pix_clk2.full = rfixed_div(pix_clk2, temp_ff);
+                temp_ff.full = rfixed_const(pixel_bytes2);
+                peak_disp_bw.full += rfixed_mul(pix_clk2, temp_ff);
+        }
+
+        mem_bw.full = rfixed_mul(mem_bw, min_mem_eff);
+        if (peak_disp_bw.full >= mem_bw.full) {
+                DRM_ERROR("You may not have enough display bandwidth for current mode\n"
+                          "If you have flickering problem, try to lower resolution, refresh rate, or color depth\n");
+        }
+
+        /*  Get values from the EXT_MEM_CNTL register...converting its contents. */
+        temp = RREG32(RADEON_MEM_TIMING_CNTL);
+        if ((rdev->family == CHIP_RV100) || (rdev->flags & RADEON_IS_IGP)) { /* RV100, M6, IGPs */
+                mem_trcd = ((temp >> 2) & 0x3) + 1;
+                mem_trp  = ((temp & 0x3)) + 1;
+                mem_tras = ((temp & 0x70) >> 4) + 1;
+        } else if (rdev->family == CHIP_R300 ||
+                   rdev->family == CHIP_R350) { /* r300, r350 */
+                mem_trcd = (temp & 0x7) + 1;
+                mem_trp = ((temp >> 8) & 0x7) + 1;
+                mem_tras = ((temp >> 11) & 0xf) + 4;
+        } else if (rdev->family == CHIP_RV350 ||
+                   rdev->family <= CHIP_RV380) {
+                /* rv3x0 */
+                mem_trcd = (temp & 0x7) + 3;
+                mem_trp = ((temp >> 8) & 0x7) + 3;
+                mem_tras = ((temp >> 11) & 0xf) + 6;
+        } else if (rdev->family == CHIP_R420 ||
+                   rdev->family == CHIP_R423 ||
+                   rdev->family == CHIP_RV410) {
+                /* r4xx */
+                mem_trcd = (temp & 0xf) + 3;
+                if (mem_trcd > 15)
+                        mem_trcd = 15;
+                mem_trp = ((temp >> 8) & 0xf) + 3;
+                if (mem_trp > 15)
+                        mem_trp = 15;
+                mem_tras = ((temp >> 12) & 0x1f) + 6;
+                if (mem_tras > 31)
+                        mem_tras = 31;
+        } else { /* RV200, R200 */
+                mem_trcd = (temp & 0x7) + 1;
+                mem_trp = ((temp >> 8) & 0x7) + 1;
+                mem_tras = ((temp >> 12) & 0xf) + 4;
+        }
+        /* convert to FF */
+        trcd_ff.full = rfixed_const(mem_trcd);
+        trp_ff.full = rfixed_const(mem_trp);
+        tras_ff.full = rfixed_const(mem_tras);
+
+        /* Get values from the MEM_SDRAM_MODE_REG register...converting its */
+        temp = RREG32(RADEON_MEM_SDRAM_MODE_REG);
+        data = (temp & (7 << 20)) >> 20;
+        if ((rdev->family == CHIP_RV100) || rdev->flags & RADEON_IS_IGP) {
+                if (rdev->family == CHIP_RS480) /* don't think rs400 */
+                        tcas_ff = memtcas_rs480_ff[data];
+                else
+                        tcas_ff = memtcas_ff[data];
+        } else
+                tcas_ff = memtcas2_ff[data];
+
+        if (rdev->family == CHIP_RS400 ||
+            rdev->family == CHIP_RS480) {
+                /* extra cas latency stored in bits 23-25 0-4 clocks */
+                data = (temp >> 23) & 0x7;
+                if (data < 5)
+                        tcas_ff.full += rfixed_const(data);
+        }
+
+        if (ASIC_IS_R300(rdev) && !(rdev->flags & RADEON_IS_IGP)) {
+                /* on the R300, Tcas is included in Trbs.
+                 */
+                temp = RREG32(RADEON_MEM_CNTL);
+                data = (R300_MEM_NUM_CHANNELS_MASK & temp);
+                if (data == 1) {
+                        if (R300_MEM_USE_CD_CH_ONLY & temp) {
+                                temp = RREG32(R300_MC_IND_INDEX);
+                                temp &= ~R300_MC_IND_ADDR_MASK;
+                                temp |= R300_MC_READ_CNTL_CD_mcind;
+                                WREG32(R300_MC_IND_INDEX, temp);
+                                temp = RREG32(R300_MC_IND_DATA);
+                                data = (R300_MEM_RBS_POSITION_C_MASK & temp);
+                        } else {
+                                temp = RREG32(R300_MC_READ_CNTL_AB);
+                                data = (R300_MEM_RBS_POSITION_A_MASK & temp);
+                        }
+                } else {
+                        temp = RREG32(R300_MC_READ_CNTL_AB);
+                        data = (R300_MEM_RBS_POSITION_A_MASK & temp);
+                }
+                if (rdev->family == CHIP_RV410 ||
+                    rdev->family == CHIP_R420 ||
+                    rdev->family == CHIP_R423)
+                        trbs_ff = memtrbs_r4xx[data];
+                else
+                        trbs_ff = memtrbs[data];
+                tcas_ff.full += trbs_ff.full;
+        }
+
+        sclk_eff_ff.full = sclk_ff.full;
+
+        if (rdev->flags & RADEON_IS_AGP) {
+                fixed20_12 agpmode_ff;
+                agpmode_ff.full = rfixed_const(radeon_agpmode);
+                temp_ff.full = rfixed_const_666(16);
+                sclk_eff_ff.full -= rfixed_mul(agpmode_ff, temp_ff);
+        }
+        /* TODO PCIE lanes may affect this - agpmode == 16?? */
+
+        if (ASIC_IS_R300(rdev)) {
+                sclk_delay_ff.full = rfixed_const(250);
+        } else {
+                if ((rdev->family == CHIP_RV100) ||
+                    rdev->flags & RADEON_IS_IGP) {
+                        if (rdev->mc.vram_is_ddr)
+                                sclk_delay_ff.full = rfixed_const(41);
+                        else
+                                sclk_delay_ff.full = rfixed_const(33);
+                } else {
+                        if (rdev->mc.vram_width == 128)
+                                sclk_delay_ff.full = rfixed_const(57);
+                        else
+                                sclk_delay_ff.full = rfixed_const(41);
+                }
+        }
+
+        mc_latency_sclk.full = rfixed_div(sclk_delay_ff, sclk_eff_ff);
+
+        if (rdev->mc.vram_is_ddr) {
+                if (rdev->mc.vram_width == 32) {
+                        k1.full = rfixed_const(40);
+                        c  = 3;
+                } else {
+                        k1.full = rfixed_const(20);
+                        c  = 1;
+                }
+        } else {
+                k1.full = rfixed_const(40);
+                c  = 3;
+        }
+
+        temp_ff.full = rfixed_const(2);
+        mc_latency_mclk.full = rfixed_mul(trcd_ff, temp_ff);
+        temp_ff.full = rfixed_const(c);
+        mc_latency_mclk.full += rfixed_mul(tcas_ff, temp_ff);
+        temp_ff.full = rfixed_const(4);
+        mc_latency_mclk.full += rfixed_mul(tras_ff, temp_ff);
+        mc_latency_mclk.full += rfixed_mul(trp_ff, temp_ff);
+        mc_latency_mclk.full += k1.full;
+
+        mc_latency_mclk.full = rfixed_div(mc_latency_mclk, mclk_ff);
+        mc_latency_mclk.full += rfixed_div(temp_ff, sclk_eff_ff);
+
+        /*
+          HW cursor time assuming worst case of full size colour cursor.
+        */
+        temp_ff.full = rfixed_const((2 * (cur_size - (rdev->mc.vram_is_ddr + 1))));
+        temp_ff.full += trcd_ff.full;
+        if (temp_ff.full < tras_ff.full)
+                temp_ff.full = tras_ff.full;
+        cur_latency_mclk.full = rfixed_div(temp_ff, mclk_ff);
+
+        temp_ff.full = rfixed_const(cur_size);
+        cur_latency_sclk.full = rfixed_div(temp_ff, sclk_eff_ff);
+        /*
+          Find the total latency for the display data.
+        */
+        disp_latency_overhead.full = rfixed_const(80);
+        disp_latency_overhead.full = rfixed_div(disp_latency_overhead, sclk_ff);
+        mc_latency_mclk.full += disp_latency_overhead.full + cur_latency_mclk.full;
+        mc_latency_sclk.full += disp_latency_overhead.full + cur_latency_sclk.full;
+
+        if (mc_latency_mclk.full > mc_latency_sclk.full)
+                disp_latency.full = mc_latency_mclk.full;
+        else
+                disp_latency.full = mc_latency_sclk.full;
+
+        /* setup Max GRPH_STOP_REQ default value */
+        if (ASIC_IS_RV100(rdev))
+                max_stop_req = 0x5c;
+        else
+                max_stop_req = 0x7c;
+
+        if (mode1) {
+                /*  CRTC1
+                    Set GRPH_BUFFER_CNTL register using h/w defined optimal values.
+                    GRPH_STOP_REQ <= MIN[ 0x7C, (CRTC_H_DISP + 1) * (bit depth) / 0x10 ]
+                */
+                stop_req = mode1->hdisplay * pixel_bytes1 / 16;
+
+                if (stop_req > max_stop_req)
+                        stop_req = max_stop_req;
+
+                /*
+                  Find the drain rate of the display buffer.
+                */
+                temp_ff.full = rfixed_const((16/pixel_bytes1));
+                disp_drain_rate.full = rfixed_div(pix_clk, temp_ff);
+
+                /*
+                  Find the critical point of the display buffer.
+                */
+                crit_point_ff.full = rfixed_mul(disp_drain_rate, disp_latency);
+                crit_point_ff.full += rfixed_const_half(0);
+
+                critical_point = rfixed_trunc(crit_point_ff);
+
+                if (rdev->disp_priority == 2) {
+                        critical_point = 0;
+                }
+
+                /*
+                  The critical point should never be above max_stop_req-4.  Setting
+                  GRPH_CRITICAL_CNTL = 0 will thus force high priority all the time.
+                */
+                if (max_stop_req - critical_point < 4)
+                        critical_point = 0;
+
+                if (critical_point == 0 && mode2 && rdev->family == CHIP_R300) {
+                        /* some R300 cards have problem with this set to 0, when CRTC2 is enabled.*/
+                        critical_point = 0x10;
+                }
+
+                temp = RREG32(RADEON_GRPH_BUFFER_CNTL);
+                temp &= ~(RADEON_GRPH_STOP_REQ_MASK);
+                temp |= (stop_req << RADEON_GRPH_STOP_REQ_SHIFT);
+                temp &= ~(RADEON_GRPH_START_REQ_MASK);
+                if ((rdev->family == CHIP_R350) &&
+                    (stop_req > 0x15)) {
+                        stop_req -= 0x10;
+                }
+                temp |= (stop_req << RADEON_GRPH_START_REQ_SHIFT);
+                temp |= RADEON_GRPH_BUFFER_SIZE;
+                temp &= ~(RADEON_GRPH_CRITICAL_CNTL   |
+                          RADEON_GRPH_CRITICAL_AT_SOF |
+                          RADEON_GRPH_STOP_CNTL);
+                /*
+                  Write the result into the register.
+                */
+                WREG32(RADEON_GRPH_BUFFER_CNTL, ((temp & ~RADEON_GRPH_CRITICAL_POINT_MASK) |
+                                                       (critical_point << RADEON_GRPH_CRITICAL_POINT_SHIFT)));
+
+#if 0
+                if ((rdev->family == CHIP_RS400) ||
+                    (rdev->family == CHIP_RS480)) {
+                        /* attempt to program RS400 disp regs correctly ??? */
+                        temp = RREG32(RS400_DISP1_REG_CNTL);
+                        temp &= ~(RS400_DISP1_START_REQ_LEVEL_MASK |
+                                  RS400_DISP1_STOP_REQ_LEVEL_MASK);
+                        WREG32(RS400_DISP1_REQ_CNTL1, (temp |
+                                                       (critical_point << RS400_DISP1_START_REQ_LEVEL_SHIFT) |
+                                                       (critical_point << RS400_DISP1_STOP_REQ_LEVEL_SHIFT)));
+                        temp = RREG32(RS400_DMIF_MEM_CNTL1);
+                        temp &= ~(RS400_DISP1_CRITICAL_POINT_START_MASK |
+                                  RS400_DISP1_CRITICAL_POINT_STOP_MASK);
+                        WREG32(RS400_DMIF_MEM_CNTL1, (temp |
+                                                      (critical_point << RS400_DISP1_CRITICAL_POINT_START_SHIFT) |
+                                                      (critical_point << RS400_DISP1_CRITICAL_POINT_STOP_SHIFT)));
+                }
+#endif
+
+                DRM_DEBUG("GRPH_BUFFER_CNTL from to %x\n",
+                          /*      (unsigned int)info->SavedReg->grph_buffer_cntl, */
+                          (unsigned int)RREG32(RADEON_GRPH_BUFFER_CNTL));
+        }
+
+        if (mode2) {
+                u32 grph2_cntl;
+                stop_req = mode2->hdisplay * pixel_bytes2 / 16;
+
+                if (stop_req > max_stop_req)
+                        stop_req = max_stop_req;
+
+                /*
+                  Find the drain rate of the display buffer.
+                */
+                temp_ff.full = rfixed_const((16/pixel_bytes2));
+                disp_drain_rate2.full = rfixed_div(pix_clk2, temp_ff);
+
+                grph2_cntl = RREG32(RADEON_GRPH2_BUFFER_CNTL);
+                grph2_cntl &= ~(RADEON_GRPH_STOP_REQ_MASK);
+                grph2_cntl |= (stop_req << RADEON_GRPH_STOP_REQ_SHIFT);
+                grph2_cntl &= ~(RADEON_GRPH_START_REQ_MASK);
+                if ((rdev->family == CHIP_R350) &&
+                    (stop_req > 0x15)) {
+                        stop_req -= 0x10;
+                }
+                grph2_cntl |= (stop_req << RADEON_GRPH_START_REQ_SHIFT);
+                grph2_cntl |= RADEON_GRPH_BUFFER_SIZE;
+                grph2_cntl &= ~(RADEON_GRPH_CRITICAL_CNTL   |
+                          RADEON_GRPH_CRITICAL_AT_SOF |
+                          RADEON_GRPH_STOP_CNTL);
+
+                if ((rdev->family == CHIP_RS100) ||
+                    (rdev->family == CHIP_RS200))
+                        critical_point2 = 0;
+                else {
+                        temp = (rdev->mc.vram_width * rdev->mc.vram_is_ddr + 1)/128;
+                        temp_ff.full = rfixed_const(temp);
+                        temp_ff.full = rfixed_mul(mclk_ff, temp_ff);
+                        if (sclk_ff.full < temp_ff.full)
+                                temp_ff.full = sclk_ff.full;
+
+                        read_return_rate.full = temp_ff.full;
+
+                        if (mode1) {
+                                temp_ff.full = read_return_rate.full - disp_drain_rate.full;
+                                time_disp1_drop_priority.full = rfixed_div(crit_point_ff, temp_ff);
+                        } else {
+                                time_disp1_drop_priority.full = 0;
+                        }
+                        crit_point_ff.full = disp_latency.full + time_disp1_drop_priority.full + disp_latency.full;
+                        crit_point_ff.full = rfixed_mul(crit_point_ff, disp_drain_rate2);
+                        crit_point_ff.full += rfixed_const_half(0);
+
+                        critical_point2 = rfixed_trunc(crit_point_ff);
+
+                        if (rdev->disp_priority == 2) {
+                                critical_point2 = 0;
+                        }
+
+                        if (max_stop_req - critical_point2 < 4)
+                                critical_point2 = 0;
+
+                }
+
+                if (critical_point2 == 0 && rdev->family == CHIP_R300) {
+                        /* some R300 cards have problem with this set to 0 */
+                        critical_point2 = 0x10;
+                }
+
+                WREG32(RADEON_GRPH2_BUFFER_CNTL, ((grph2_cntl & ~RADEON_GRPH_CRITICAL_POINT_MASK) |
+                                                  (critical_point2 << RADEON_GRPH_CRITICAL_POINT_SHIFT)));
+
+                if ((rdev->family == CHIP_RS400) ||
+                    (rdev->family == CHIP_RS480)) {
+#if 0
+                        /* attempt to program RS400 disp2 regs correctly ??? */
+                        temp = RREG32(RS400_DISP2_REQ_CNTL1);
+                        temp &= ~(RS400_DISP2_START_REQ_LEVEL_MASK |
+                                  RS400_DISP2_STOP_REQ_LEVEL_MASK);
+                        WREG32(RS400_DISP2_REQ_CNTL1, (temp |
+                                                       (critical_point2 << RS400_DISP1_START_REQ_LEVEL_SHIFT) |
+                                                       (critical_point2 << RS400_DISP1_STOP_REQ_LEVEL_SHIFT)));
+                        temp = RREG32(RS400_DISP2_REQ_CNTL2);
+                        temp &= ~(RS400_DISP2_CRITICAL_POINT_START_MASK |
+                                  RS400_DISP2_CRITICAL_POINT_STOP_MASK);
+                        WREG32(RS400_DISP2_REQ_CNTL2, (temp |
+                                                       (critical_point2 << RS400_DISP2_CRITICAL_POINT_START_SHIFT) |
+                                                       (critical_point2 << RS400_DISP2_CRITICAL_POINT_STOP_SHIFT)));
+#endif
+                        WREG32(RS400_DISP2_REQ_CNTL1, 0x105DC1CC);
+                        WREG32(RS400_DISP2_REQ_CNTL2, 0x2749D000);
+                        WREG32(RS400_DMIF_MEM_CNTL1,  0x29CA71DC);
+                        WREG32(RS400_DISP1_REQ_CNTL1, 0x28FBC3AC);
+                }
+
+                DRM_DEBUG("GRPH2_BUFFER_CNTL from to %x\n",
+                          (unsigned int)RREG32(RADEON_GRPH2_BUFFER_CNTL));
+        }
+}
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index e2ed5bc08170..9c8d41534a5d 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -30,6 +30,8 @@
 #include "drm.h"
 #include "radeon_reg.h"
 #include "radeon.h"
+#include "radeon_drm.h"
+#include "radeon_share.h"
 
 /* r300,r350,rv350,rv370,rv380 depends on : */
 void r100_hdp_reset(struct radeon_device *rdev);
@@ -44,6 +46,7 @@ int r100_gui_wait_for_idle(struct radeon_device *rdev);
 int r100_cs_packet_parse(struct radeon_cs_parser *p,
                          struct radeon_cs_packet *pkt,
                          unsigned idx);
+int r100_cs_packet_parse_vline(struct radeon_cs_parser *p);
 int r100_cs_packet_next_reloc(struct radeon_cs_parser *p,
                               struct radeon_cs_reloc **cs_reloc);
 int r100_cs_parse_packet0(struct radeon_cs_parser *p,
@@ -150,8 +153,13 @@ int rv370_pcie_gart_set_page(struct radeon_device *rdev, int i, uint64_t addr)
         if (i < 0 || i > rdev->gart.num_gpu_pages) {
                 return -EINVAL;
         }
-        addr = (((u32)addr) >> 8) | ((upper_32_bits(addr) & 0xff) << 4) | 0xC;
-        writel(cpu_to_le32(addr), ((void __iomem *)ptr) + (i * 4));
+        addr = (lower_32_bits(addr) >> 8) |
+               ((upper_32_bits(addr) & 0xff) << 24) |
+               0xc;
+        /* on x86 we want this to be CPU endian, on powerpc
+         * on powerpc without HW swappers, it'll get swapped on way
+         * into VRAM - so no need for cpu_to_le32 on VRAM tables */
+        writel(addr, ((void __iomem *)ptr) + (i * 4));
         return 0;
 }
 
@@ -579,10 +587,8 @@ void r300_vram_info(struct radeon_device *rdev)
         } else {
                 rdev->mc.vram_width = 64;
         }
-        rdev->mc.vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
 
-        rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
-        rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
+        r100_vram_init_sizes(rdev);
 }
 
 
@@ -970,7 +976,7 @@ static inline void r300_cs_track_clear(struct r300_cs_track *track)
 
 static const unsigned r300_reg_safe_bm[159] = {
         0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
-        0xFFFFFFBF, 0xFFFFFFFF, 0xFFFFFFBF, 0xFFFFFFFF,
+        0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
         0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
         0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
         0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
@@ -1019,7 +1025,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
         struct radeon_cs_reloc *reloc;
         struct r300_cs_track *track;
         volatile uint32_t *ib;
-        uint32_t tmp;
+        uint32_t tmp, tile_flags = 0;
         unsigned i;
         int r;
 
@@ -1027,6 +1033,16 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
         ib_chunk = &p->chunks[p->chunk_ib_idx];
         track = (struct r300_cs_track*)p->track;
         switch(reg) {
+        case AVIVO_D1MODE_VLINE_START_END:
+        case RADEON_CRTC_GUI_TRIG_VLINE:
+                r = r100_cs_packet_parse_vline(p);
+                if (r) {
+                        DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
+                                        idx, reg);
+                        r100_cs_dump_packet(p, pkt);
+                        return r;
+                }
+                break;
         case RADEON_DST_PITCH_OFFSET:
         case RADEON_SRC_PITCH_OFFSET:
                 r = r100_cs_packet_next_reloc(p, &reloc);
@@ -1038,7 +1054,19 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
                 }
                 tmp = ib_chunk->kdata[idx] & 0x003fffff;
                 tmp += (((u32)reloc->lobj.gpu_offset) >> 10);
-                ib[idx] = (ib_chunk->kdata[idx] & 0xffc00000) | tmp;
+
+                if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO)
+                        tile_flags |= RADEON_DST_TILE_MACRO;
+                if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO) {
+                        if (reg == RADEON_SRC_PITCH_OFFSET) {
+                                DRM_ERROR("Cannot src blit from microtiled surface\n");
+                                r100_cs_dump_packet(p, pkt);
+                                return -EINVAL;
+                        }
+                        tile_flags |= RADEON_DST_TILE_MICRO;
+                }
+                tmp |= tile_flags;
+                ib[idx] = (ib_chunk->kdata[idx] & 0x3fc00000) | tmp;
                 break;
         case R300_RB3D_COLOROFFSET0:
         case R300_RB3D_COLOROFFSET1:
@@ -1127,6 +1155,23 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
                 /* RB3D_COLORPITCH1 */
                 /* RB3D_COLORPITCH2 */
                 /* RB3D_COLORPITCH3 */
+                r = r100_cs_packet_next_reloc(p, &reloc);
+                if (r) {
+                        DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
+                                  idx, reg);
+                        r100_cs_dump_packet(p, pkt);
+                        return r;
+                }
+
+                if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO)
+                        tile_flags |= R300_COLOR_TILE_ENABLE;
+                if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO)
+                        tile_flags |= R300_COLOR_MICROTILE_ENABLE;
+
+                tmp = ib_chunk->kdata[idx] & ~(0x7 << 16);
+                tmp |= tile_flags;
+                ib[idx] = tmp;
+
                 i = (reg - 0x4E38) >> 2;
                 track->cb[i].pitch = ib_chunk->kdata[idx] & 0x3FFE;
                 switch (((ib_chunk->kdata[idx] >> 21) & 0xF)) {
@@ -1182,6 +1227,23 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
                 break;
         case 0x4F24:
                 /* ZB_DEPTHPITCH */
+                r = r100_cs_packet_next_reloc(p, &reloc);
+                if (r) {
+                        DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
+                                  idx, reg);
+                        r100_cs_dump_packet(p, pkt);
+                        return r;
+                }
+
+                if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO)
+                        tile_flags |= R300_DEPTHMACROTILE_ENABLE;
+                if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO)
+                        tile_flags |= R300_DEPTHMICROTILE_TILED;;
+
+                tmp = ib_chunk->kdata[idx] & ~(0x7 << 16);
+                tmp |= tile_flags;
+                ib[idx] = tmp;
+
                 track->zb.pitch = ib_chunk->kdata[idx] & 0x3FFC;
                 break;
         case 0x4104:
diff --git a/drivers/gpu/drm/radeon/r300_reg.h b/drivers/gpu/drm/radeon/r300_reg.h
index 70f48609515e..4b7afef35a65 100644
--- a/drivers/gpu/drm/radeon/r300_reg.h
+++ b/drivers/gpu/drm/radeon/r300_reg.h
@@ -27,7 +27,9 @@
 #ifndef _R300_REG_H_
 #define _R300_REG_H_
 
-
+#define R300_SURF_TILE_MACRO (1<<16)
+#define R300_SURF_TILE_MICRO (2<<16)
+#define R300_SURF_TILE_BOTH (3<<16)
 
 
 #define R300_MC_INIT_MISC_LAT_TIMER     0x180
diff --git a/drivers/gpu/drm/radeon/r500_reg.h b/drivers/gpu/drm/radeon/r500_reg.h
index 9070a1c2ce23..036691b38cb7 100644
--- a/drivers/gpu/drm/radeon/r500_reg.h
+++ b/drivers/gpu/drm/radeon/r500_reg.h
@@ -445,6 +445,7 @@
 #define AVIVO_D1MODE_DATA_FORMAT                0x6528
 #       define AVIVO_D1MODE_INTERLEAVE_EN       (1 << 0)
 #define AVIVO_D1MODE_DESKTOP_HEIGHT             0x652C
+#define AVIVO_D1MODE_VLINE_START_END            0x6538
 #define AVIVO_D1MODE_VIEWPORT_START             0x6580
 #define AVIVO_D1MODE_VIEWPORT_SIZE              0x6584
 #define AVIVO_D1MODE_EXT_OVERSCAN_LEFT_RIGHT    0x6588
@@ -496,6 +497,7 @@
 #define AVIVO_D2CUR_SIZE                        0x6c10
 #define AVIVO_D2CUR_POSITION                    0x6c14
 
+#define AVIVO_D2MODE_VLINE_START_END            0x6d38
 #define AVIVO_D2MODE_VIEWPORT_START             0x6d80
 #define AVIVO_D2MODE_VIEWPORT_SIZE              0x6d84
 #define AVIVO_D2MODE_EXT_OVERSCAN_LEFT_RIGHT    0x6d88
diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
index 570a244bd88b..09fb0b6ec7dd 100644
--- a/drivers/gpu/drm/radeon/r520.c
+++ b/drivers/gpu/drm/radeon/r520.c
@@ -28,6 +28,7 @@
 #include "drmP.h"
 #include "radeon_reg.h"
 #include "radeon.h"
+#include "radeon_share.h"
 
 /* r520,rv530,rv560,rv570,r580 depends on : */
 void r100_hdp_reset(struct radeon_device *rdev);
@@ -94,8 +95,8 @@ int r520_mc_init(struct radeon_device *rdev)
                        "programming pipes. Bad things might happen.\n");
         }
         /* Write VRAM size in case we are limiting it */
-        WREG32(RADEON_CONFIG_MEMSIZE, rdev->mc.vram_size);
-        tmp = rdev->mc.vram_location + rdev->mc.vram_size - 1;
+        WREG32(RADEON_CONFIG_MEMSIZE, rdev->mc.real_vram_size);
+        tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
         tmp = REG_SET(R520_MC_FB_TOP, tmp >> 16);
         tmp |= REG_SET(R520_MC_FB_START, rdev->mc.vram_location >> 16);
         WREG32_MC(R520_MC_FB_LOCATION, tmp);
@@ -226,9 +227,20 @@ static void r520_vram_get_type(struct radeon_device *rdev)
 
 void r520_vram_info(struct radeon_device *rdev)
 {
+        fixed20_12 a;
+
         r520_vram_get_type(rdev);
-        rdev->mc.vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
 
-        rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
-        rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
+        r100_vram_init_sizes(rdev);
+        /* FIXME: we should enforce default clock in case GPU is not in
+         * default setup
+         */
+        a.full = rfixed_const(100);
+        rdev->pm.sclk.full = rfixed_const(rdev->clock.default_sclk);
+        rdev->pm.sclk.full = rfixed_div(rdev->pm.sclk, a);
+}
+
+void r520_bandwidth_update(struct radeon_device *rdev)
+{
+        rv515_bandwidth_avivo_update(rdev);
 }
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index c45559fc97fd..538cd907df69 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -67,7 +67,7 @@ int r600_mc_init(struct radeon_device *rdev)
                        "programming pipes. Bad things might happen.\n");
         }
 
-        tmp = rdev->mc.vram_location + rdev->mc.vram_size - 1;
+        tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
         tmp = REG_SET(R600_MC_FB_TOP, tmp >> 24);
         tmp |= REG_SET(R600_MC_FB_BASE, rdev->mc.vram_location >> 24);
         WREG32(R600_MC_VM_FB_LOCATION, tmp);
@@ -140,7 +140,8 @@ void r600_vram_get_type(struct radeon_device *rdev)
 void r600_vram_info(struct radeon_device *rdev)
 {
         r600_vram_get_type(rdev);
-        rdev->mc.vram_size = RREG32(R600_CONFIG_MEMSIZE);
+        rdev->mc.real_vram_size = RREG32(R600_CONFIG_MEMSIZE);
+        rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
 
         /* Could aper size report 0 ? */
         rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
diff --git a/drivers/gpu/drm/radeon/r600_cp.c b/drivers/gpu/drm/radeon/r600_cp.c
index 146f3570af8e..20f17908b036 100644
--- a/drivers/gpu/drm/radeon/r600_cp.c
+++ b/drivers/gpu/drm/radeon/r600_cp.c
@@ -384,8 +384,9 @@ static void r600_cp_load_microcode(drm_radeon_private_t *dev_priv)
                 DRM_INFO("Loading RV670 PFP Microcode\n");
                 for (i = 0; i < PFP_UCODE_SIZE; i++)
                         RADEON_WRITE(R600_CP_PFP_UCODE_DATA, RV670_pfp_microcode[i]);
-        } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS780)) {
-                DRM_INFO("Loading RS780 CP Microcode\n");
+        } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS780) ||
+                   ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS880)) {
+                DRM_INFO("Loading RS780/RS880 CP Microcode\n");
                 for (i = 0; i < PM4_UCODE_SIZE; i++) {
                         RADEON_WRITE(R600_CP_ME_RAM_DATA,
                                      RS780_cp_microcode[i][0]);
@@ -396,7 +397,7 @@ static void r600_cp_load_microcode(drm_radeon_private_t *dev_priv)
                 }
 
                 RADEON_WRITE(R600_CP_PFP_UCODE_ADDR, 0);
-                DRM_INFO("Loading RS780 PFP Microcode\n");
+                DRM_INFO("Loading RS780/RS880 PFP Microcode\n");
                 for (i = 0; i < PFP_UCODE_SIZE; i++)
                         RADEON_WRITE(R600_CP_PFP_UCODE_DATA, RS780_pfp_microcode[i]);
         }
@@ -783,6 +784,7 @@ static void r600_gfx_init(struct drm_device *dev,
                 break;
         case CHIP_RV610:
         case CHIP_RS780:
+        case CHIP_RS880:
         case CHIP_RV620:
                 dev_priv->r600_max_pipes = 1;
                 dev_priv->r600_max_tile_pipes = 1;
@@ -917,7 +919,8 @@ static void r600_gfx_init(struct drm_device *dev,
             ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV630) ||
             ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV610) ||
             ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV620) ||
-            ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS780))
+            ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS780) ||
+            ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS880))
                 RADEON_WRITE(R600_DB_DEBUG, R600_PREZ_MUST_WAIT_FOR_POSTZ_DONE);
         else
                 RADEON_WRITE(R600_DB_DEBUG, 0);
@@ -935,7 +938,8 @@ static void r600_gfx_init(struct drm_device *dev,
         sq_ms_fifo_sizes = RADEON_READ(R600_SQ_MS_FIFO_SIZES);
         if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV610) ||
             ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV620) ||
-            ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS780)) {
+            ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS780) ||
+            ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS880)) {
                 sq_ms_fifo_sizes = (R600_CACHE_FIFO_SIZE(0xa) |
                                     R600_FETCH_FIFO_HIWATER(0xa) |
                                     R600_DONE_FIFO_HIWATER(0xe0) |
@@ -978,7 +982,8 @@ static void r600_gfx_init(struct drm_device *dev,
                                             R600_NUM_ES_STACK_ENTRIES(0));
         } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV610) ||
                    ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV620) ||
-                   ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS780)) {
+                   ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS780) ||
+                   ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS880)) {
                 /* no vertex cache */
                 sq_config &= ~R600_VC_ENABLE;
 
@@ -1035,7 +1040,8 @@ static void r600_gfx_init(struct drm_device *dev,
 
         if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV610) ||
             ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV620) ||
-            ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS780))
+            ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS780) ||
+            ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS880))
                 RADEON_WRITE(R600_VGT_CACHE_INVALIDATION, R600_CACHE_INVALIDATION(R600_TC_ONLY));
         else
                 RADEON_WRITE(R600_VGT_CACHE_INVALIDATION, R600_CACHE_INVALIDATION(R600_VC_AND_TC));
@@ -1078,6 +1084,7 @@ static void r600_gfx_init(struct drm_device *dev,
                 break;
         case CHIP_RV610:
         case CHIP_RS780:
+        case CHIP_RS880:
         case CHIP_RV620:
                 gs_prim_buffer_depth = 32;
                 break;
@@ -1123,6 +1130,7 @@ static void r600_gfx_init(struct drm_device *dev,
         switch (dev_priv->flags & RADEON_FAMILY_MASK) {
         case CHIP_RV610:
         case CHIP_RS780:
+        case CHIP_RS880:
         case CHIP_RV620:
                 tc_cntl = R600_TC_L2_SIZE(8);
                 break;
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index d61f2fc61df5..b1d945b8ed6c 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -64,6 +64,7 @@ extern int radeon_agpmode;
 extern int radeon_vram_limit;
 extern int radeon_gart_size;
 extern int radeon_benchmarking;
+extern int radeon_testing;
 extern int radeon_connector_table;
 
 /*
@@ -113,6 +114,7 @@ enum radeon_family {
         CHIP_RV770,
         CHIP_RV730,
         CHIP_RV710,
+        CHIP_RS880,
         CHIP_LAST,
 };
 
@@ -201,6 +203,14 @@ int radeon_fence_wait_last(struct radeon_device *rdev);
 struct radeon_fence *radeon_fence_ref(struct radeon_fence *fence);
 void radeon_fence_unref(struct radeon_fence **fence);
 
+/*
+ * Tiling registers
+ */
+struct radeon_surface_reg {
+        struct radeon_object *robj;
+};
+
+#define RADEON_GEM_MAX_SURFACES 8
 
 /*
  * Radeon buffer.
@@ -213,6 +223,7 @@ struct radeon_object_list {
         uint64_t                gpu_offset;
         unsigned                rdomain;
         unsigned                wdomain;
+        uint32_t                tiling_flags;
 };
 
 int radeon_object_init(struct radeon_device *rdev);
@@ -242,8 +253,15 @@ void radeon_object_list_clean(struct list_head *head);
 int radeon_object_fbdev_mmap(struct radeon_object *robj,
                              struct vm_area_struct *vma);
 unsigned long radeon_object_size(struct radeon_object *robj);
-
-
+void radeon_object_clear_surface_reg(struct radeon_object *robj);
+int radeon_object_check_tiling(struct radeon_object *robj, bool has_moved,
+                               bool force_drop);
+void radeon_object_set_tiling_flags(struct radeon_object *robj,
+                                    uint32_t tiling_flags, uint32_t pitch);
+void radeon_object_get_tiling_flags(struct radeon_object *robj, uint32_t *tiling_flags, uint32_t *pitch);
+void radeon_bo_move_notify(struct ttm_buffer_object *bo,
+                           struct ttm_mem_reg *mem);
+void radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo);
 /*
  * GEM objects.
  */
@@ -315,8 +333,11 @@ struct radeon_mc {
         unsigned                gtt_location;
         unsigned                gtt_size;
         unsigned                vram_location;
-        unsigned                vram_size;
+        /* for some chips with <= 32MB we need to lie
+         * about vram size near mc fb location */
+        unsigned                mc_vram_size;
         unsigned                vram_width;
+        unsigned                real_vram_size;
         int                     vram_mtrr;
         bool                    vram_is_ddr;
 };
@@ -474,6 +495,39 @@ struct radeon_wb {
         uint64_t                gpu_addr;
 };
 
+/**
+ * struct radeon_pm - power management datas
+ * @max_bandwidth:      maximum bandwidth the gpu has (MByte/s)
+ * @igp_sideport_mclk:  sideport memory clock Mhz (rs690,rs740,rs780,rs880)
+ * @igp_system_mclk:    system clock Mhz (rs690,rs740,rs780,rs880)
+ * @igp_ht_link_clk:    ht link clock Mhz (rs690,rs740,rs780,rs880)
+ * @igp_ht_link_width:  ht link width in bits (rs690,rs740,rs780,rs880)
+ * @k8_bandwidth:       k8 bandwidth the gpu has (MByte/s) (IGP)
+ * @sideport_bandwidth: sideport bandwidth the gpu has (MByte/s) (IGP)
+ * @ht_bandwidth:       ht bandwidth the gpu has (MByte/s) (IGP)
+ * @core_bandwidth:     core GPU bandwidth the gpu has (MByte/s) (IGP)
+ * @sclk:               GPU clock Mhz (core bandwith depends of this clock)
+ * @needed_bandwidth:   current bandwidth needs
+ *
+ * It keeps track of various data needed to take powermanagement decision.
+ * Bandwith need is used to determine minimun clock of the GPU and memory.
+ * Equation between gpu/memory clock and available bandwidth is hw dependent
+ * (type of memory, bus size, efficiency, ...)
+ */
+struct radeon_pm {
+        fixed20_12              max_bandwidth;
+        fixed20_12              igp_sideport_mclk;
+        fixed20_12              igp_system_mclk;
+        fixed20_12              igp_ht_link_clk;
+        fixed20_12              igp_ht_link_width;
+        fixed20_12              k8_bandwidth;
+        fixed20_12              sideport_bandwidth;
+        fixed20_12              ht_bandwidth;
+        fixed20_12              core_bandwidth;
+        fixed20_12              sclk;
+        fixed20_12              needed_bandwidth;
+};
+
 
 /*
  * Benchmarking
@@ -482,6 +536,12 @@ void radeon_benchmark(struct radeon_device *rdev);
 
 
 /*
+ * Testing
+ */
+void radeon_test_moves(struct radeon_device *rdev);
+
+
+/*
  * Debugfs
  */
 int radeon_debugfs_add_files(struct radeon_device *rdev,
@@ -535,6 +595,11 @@ struct radeon_asic {
         void (*set_memory_clock)(struct radeon_device *rdev, uint32_t mem_clock);
         void (*set_pcie_lanes)(struct radeon_device *rdev, int lanes);
         void (*set_clock_gating)(struct radeon_device *rdev, int enable);
+        int (*set_surface_reg)(struct radeon_device *rdev, int reg,
+                               uint32_t tiling_flags, uint32_t pitch,
+                               uint32_t offset, uint32_t obj_size);
+        int (*clear_surface_reg)(struct radeon_device *rdev, int reg);
+        void (*bandwidth_update)(struct radeon_device *rdev);
 };
 
 union radeon_asic_config {
@@ -566,6 +631,10 @@ int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
                               struct drm_file *filp);
 int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);
+int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
+                                struct drm_file *filp);
+int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
+                                struct drm_file *filp);
 
 
 /*
@@ -594,8 +663,8 @@ struct radeon_device {
         struct radeon_object            *fbdev_robj;
         struct radeon_framebuffer       *fbdev_rfb;
         /* Register mmio */
-        unsigned long                   rmmio_base;
-        unsigned long                   rmmio_size;
+        resource_size_t                 rmmio_base;
+        resource_size_t                 rmmio_size;
         void                            *rmmio;
         radeon_rreg_t                   mm_rreg;
         radeon_wreg_t                   mm_wreg;
@@ -619,11 +688,14 @@ struct radeon_device {
         struct radeon_irq               irq;
         struct radeon_asic              *asic;
         struct radeon_gem               gem;
+        struct radeon_pm                pm;
         struct mutex                    cs_mutex;
         struct radeon_wb                wb;
         bool                            gpu_lockup;
         bool                            shutdown;
         bool                            suspend;
+        bool                            need_dma32;
+        struct radeon_surface_reg surface_regs[RADEON_GEM_MAX_SURFACES];
 };
 
 int radeon_device_init(struct radeon_device *rdev,
@@ -670,6 +742,8 @@ void r100_pll_errata_after_index(struct radeon_device *rdev);
 /*
  * ASICs helpers.
  */
+#define ASIC_IS_RN50(rdev) ((rdev->pdev->device == 0x515e) || \
+                            (rdev->pdev->device == 0x5969))
 #define ASIC_IS_RV100(rdev) ((rdev->family == CHIP_RV100) || \
                 (rdev->family == CHIP_RV200) || \
                 (rdev->family == CHIP_RS100) || \
@@ -796,5 +870,8 @@ static inline void radeon_ring_write(struct radeon_device *rdev, uint32_t v)
 #define radeon_set_memory_clock(rdev, e) (rdev)->asic->set_engine_clock((rdev), (e))
 #define radeon_set_pcie_lanes(rdev, l) (rdev)->asic->set_pcie_lanes((rdev), (l))
 #define radeon_set_clock_gating(rdev, e) (rdev)->asic->set_clock_gating((rdev), (e))
+#define radeon_set_surface_reg(rdev, r, f, p, o, s) ((rdev)->asic->set_surface_reg((rdev), (r), (f), (p), (o), (s)))
+#define radeon_clear_surface_reg(rdev, r) ((rdev)->asic->clear_surface_reg((rdev), (r)))
+#define radeon_bandwidth_update(rdev) (rdev)->asic->bandwidth_update((rdev))
 
 #endif
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index e2e567395df8..9a75876e0c3b 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -71,6 +71,11 @@ int r100_copy_blit(struct radeon_device *rdev,
                    uint64_t dst_offset,
                    unsigned num_pages,
                    struct radeon_fence *fence);
+int r100_set_surface_reg(struct radeon_device *rdev, int reg,
+                         uint32_t tiling_flags, uint32_t pitch,
+                         uint32_t offset, uint32_t obj_size);
+int r100_clear_surface_reg(struct radeon_device *rdev, int reg);
+void r100_bandwidth_update(struct radeon_device *rdev);
 
 static struct radeon_asic r100_asic = {
         .init = &r100_init,
@@ -100,6 +105,9 @@ static struct radeon_asic r100_asic = {
         .set_memory_clock = NULL,
         .set_pcie_lanes = NULL,
         .set_clock_gating = &radeon_legacy_set_clock_gating,
+        .set_surface_reg = r100_set_surface_reg,
+        .clear_surface_reg = r100_clear_surface_reg,
+        .bandwidth_update = &r100_bandwidth_update,
 };
 
 
@@ -128,6 +136,7 @@ int r300_copy_dma(struct radeon_device *rdev,
                   uint64_t dst_offset,
                   unsigned num_pages,
                   struct radeon_fence *fence);
+
 static struct radeon_asic r300_asic = {
         .init = &r300_init,
         .errata = &r300_errata,
@@ -156,6 +165,9 @@ static struct radeon_asic r300_asic = {
         .set_memory_clock = NULL,
         .set_pcie_lanes = &rv370_set_pcie_lanes,
         .set_clock_gating = &radeon_legacy_set_clock_gating,
+        .set_surface_reg = r100_set_surface_reg,
+        .clear_surface_reg = r100_clear_surface_reg,
+        .bandwidth_update = &r100_bandwidth_update,
 };
 
 /*
@@ -193,6 +205,9 @@ static struct radeon_asic r420_asic = {
         .set_memory_clock = &radeon_atom_set_memory_clock,
         .set_pcie_lanes = &rv370_set_pcie_lanes,
         .set_clock_gating = &radeon_atom_set_clock_gating,
+        .set_surface_reg = r100_set_surface_reg,
+        .clear_surface_reg = r100_clear_surface_reg,
+        .bandwidth_update = &r100_bandwidth_update,
 };
 
 
@@ -237,6 +252,9 @@ static struct radeon_asic rs400_asic = {
         .set_memory_clock = NULL,
         .set_pcie_lanes = NULL,
         .set_clock_gating = &radeon_legacy_set_clock_gating,
+        .set_surface_reg = r100_set_surface_reg,
+        .clear_surface_reg = r100_clear_surface_reg,
+        .bandwidth_update = &r100_bandwidth_update,
 };
 
 
@@ -254,6 +272,7 @@ void rs600_gart_tlb_flush(struct radeon_device *rdev);
 int rs600_gart_set_page(struct radeon_device *rdev, int i, uint64_t addr);
 uint32_t rs600_mc_rreg(struct radeon_device *rdev, uint32_t reg);
 void rs600_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v);
+void rs600_bandwidth_update(struct radeon_device *rdev);
 static struct radeon_asic rs600_asic = {
         .init = &r300_init,
         .errata = &rs600_errata,
@@ -282,6 +301,7 @@ static struct radeon_asic rs600_asic = {
         .set_memory_clock = &radeon_atom_set_memory_clock,
         .set_pcie_lanes = NULL,
         .set_clock_gating = &radeon_atom_set_clock_gating,
+        .bandwidth_update = &rs600_bandwidth_update,
 };
 
 
@@ -294,6 +314,7 @@ int rs690_mc_init(struct radeon_device *rdev);
 void rs690_mc_fini(struct radeon_device *rdev);
 uint32_t rs690_mc_rreg(struct radeon_device *rdev, uint32_t reg);
 void rs690_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v);
+void rs690_bandwidth_update(struct radeon_device *rdev);
 static struct radeon_asic rs690_asic = {
         .init = &r300_init,
         .errata = &rs690_errata,
@@ -322,6 +343,9 @@ static struct radeon_asic rs690_asic = {
         .set_memory_clock = &radeon_atom_set_memory_clock,
         .set_pcie_lanes = NULL,
         .set_clock_gating = &radeon_atom_set_clock_gating,
+        .set_surface_reg = r100_set_surface_reg,
+        .clear_surface_reg = r100_clear_surface_reg,
+        .bandwidth_update = &rs690_bandwidth_update,
 };
 
 
@@ -339,6 +363,7 @@ void rv515_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v);
 void rv515_ring_start(struct radeon_device *rdev);
 uint32_t rv515_pcie_rreg(struct radeon_device *rdev, uint32_t reg);
 void rv515_pcie_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v);
+void rv515_bandwidth_update(struct radeon_device *rdev);
 static struct radeon_asic rv515_asic = {
         .init = &rv515_init,
         .errata = &rv515_errata,
@@ -367,6 +392,9 @@ static struct radeon_asic rv515_asic = {
         .set_memory_clock = &radeon_atom_set_memory_clock,
         .set_pcie_lanes = &rv370_set_pcie_lanes,
         .set_clock_gating = &radeon_atom_set_clock_gating,
+        .set_surface_reg = r100_set_surface_reg,
+        .clear_surface_reg = r100_clear_surface_reg,
+        .bandwidth_update = &rv515_bandwidth_update,
 };
 
 
@@ -377,6 +405,7 @@ void r520_errata(struct radeon_device *rdev);
 void r520_vram_info(struct radeon_device *rdev);
 int r520_mc_init(struct radeon_device *rdev);
 void r520_mc_fini(struct radeon_device *rdev);
+void r520_bandwidth_update(struct radeon_device *rdev);
 static struct radeon_asic r520_asic = {
         .init = &rv515_init,
         .errata = &r520_errata,
@@ -405,6 +434,9 @@ static struct radeon_asic r520_asic = {
         .set_memory_clock = &radeon_atom_set_memory_clock,
         .set_pcie_lanes = &rv370_set_pcie_lanes,
         .set_clock_gating = &radeon_atom_set_clock_gating,
+        .set_surface_reg = r100_set_surface_reg,
+        .clear_surface_reg = r100_clear_surface_reg,
+        .bandwidth_update = &r520_bandwidth_update,
 };
 
 /*
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 1f5a1a490984..fcfe5c02d744 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -103,7 +103,8 @@ static inline struct radeon_i2c_bus_rec radeon_lookup_gpio(struct drm_device
 static bool radeon_atom_apply_quirks(struct drm_device *dev,
                                      uint32_t supported_device,
                                      int *connector_type,
-                                     struct radeon_i2c_bus_rec *i2c_bus)
+                                     struct radeon_i2c_bus_rec *i2c_bus,
+                                     uint8_t *line_mux)
 {
 
         /* Asus M2A-VM HDMI board lists the DVI port as HDMI */
@@ -127,8 +128,10 @@ static bool radeon_atom_apply_quirks(struct drm_device *dev,
         if ((dev->pdev->device == 0x5653) &&
             (dev->pdev->subsystem_vendor == 0x1462) &&
             (dev->pdev->subsystem_device == 0x0291)) {
-                if (*connector_type == DRM_MODE_CONNECTOR_LVDS)
+                if (*connector_type == DRM_MODE_CONNECTOR_LVDS) {
                         i2c_bus->valid = false;
+                        *line_mux = 53;
+                }
         }
 
         /* Funky macbooks */
@@ -526,7 +529,7 @@ bool radeon_get_atom_connector_info_from_supported_devices_table(struct
 
                 if (!radeon_atom_apply_quirks
                     (dev, (1 << i), &bios_connectors[i].connector_type,
-                     &bios_connectors[i].ddc_bus))
+                     &bios_connectors[i].ddc_bus, &bios_connectors[i].line_mux))
                         continue;
 
                 bios_connectors[i].valid = true;
diff --git a/drivers/gpu/drm/radeon/radeon_benchmark.c b/drivers/gpu/drm/radeon/radeon_benchmark.c
index c44403a2ca76..2e938f7496fb 100644
--- a/drivers/gpu/drm/radeon/radeon_benchmark.c
+++ b/drivers/gpu/drm/radeon/radeon_benchmark.c
@@ -63,7 +63,7 @@ void radeon_benchmark_move(struct radeon_device *rdev, unsigned bsize,
                 if (r) {
                         goto out_cleanup;
                 }
-                r = radeon_copy_dma(rdev, saddr, daddr, size >> 14, fence);
+                r = radeon_copy_dma(rdev, saddr, daddr, size / 4096, fence);
                 if (r) {
                         goto out_cleanup;
                 }
@@ -88,7 +88,7 @@ void radeon_benchmark_move(struct radeon_device *rdev, unsigned bsize,
                 if (r) {
                         goto out_cleanup;
                 }
-                r = radeon_copy_blit(rdev, saddr, daddr, size >> 14, fence);
+                r = radeon_copy_blit(rdev, saddr, daddr, size / 4096, fence);
                 if (r) {
                         goto out_cleanup;
                 }
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index b843f9bdfb14..a169067efc4e 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -127,17 +127,23 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)
                                        sizeof(struct drm_radeon_cs_chunk))) {
                         return -EFAULT;
                 }
+                p->chunks[i].length_dw = user_chunk.length_dw;
+                p->chunks[i].kdata = NULL;
                 p->chunks[i].chunk_id = user_chunk.chunk_id;
+
                 if (p->chunks[i].chunk_id == RADEON_CHUNK_ID_RELOCS) {
                         p->chunk_relocs_idx = i;
                 }
                 if (p->chunks[i].chunk_id == RADEON_CHUNK_ID_IB) {
                         p->chunk_ib_idx = i;
+                        /* zero length IB isn't useful */
+                        if (p->chunks[i].length_dw == 0)
+                                return -EINVAL;
                 }
+
                 p->chunks[i].length_dw = user_chunk.length_dw;
                 cdata = (uint32_t *)(unsigned long)user_chunk.chunk_data;
 
-                p->chunks[i].kdata = NULL;
                 size = p->chunks[i].length_dw * sizeof(uint32_t);
                 p->chunks[i].kdata = kzalloc(size, GFP_KERNEL);
                 if (p->chunks[i].kdata == NULL) {
diff --git a/drivers/gpu/drm/radeon/radeon_cursor.c b/drivers/gpu/drm/radeon/radeon_cursor.c
index 5232441f119b..b13c79e38bc0 100644
--- a/drivers/gpu/drm/radeon/radeon_cursor.c
+++ b/drivers/gpu/drm/radeon/radeon_cursor.c
@@ -111,9 +111,11 @@ static void radeon_set_cursor(struct drm_crtc *crtc, struct drm_gem_object *obj,
 
         if (ASIC_IS_AVIVO(rdev))
                 WREG32(AVIVO_D1CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset, gpu_addr);
-        else
+        else {
+                radeon_crtc->legacy_cursor_offset = gpu_addr - radeon_crtc->legacy_display_base_addr;
                 /* offset is from DISP(2)_BASE_ADDRESS */
-                WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, gpu_addr);
+                WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, radeon_crtc->legacy_cursor_offset);
+        }
 }
 
 int radeon_crtc_cursor_set(struct drm_crtc *crtc,
@@ -245,6 +247,9 @@ int radeon_crtc_cursor_move(struct drm_crtc *crtc,
                        (RADEON_CUR_LOCK
                         | ((xorigin ? 0 : x) << 16)
                         | (yorigin ? 0 : y)));
+                /* offset is from DISP(2)_BASE_ADDRESS */
+                WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, (radeon_crtc->legacy_cursor_offset +
+                                                                      (yorigin * 256)));
         }
         radeon_lock_cursor(crtc, false);
 
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index f30aa7274a54..9ff6dcb97f9d 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -35,6 +35,25 @@
 #include "atom.h"
 
 /*
+ * Clear GPU surface registers.
+ */
+static void radeon_surface_init(struct radeon_device *rdev)
+{
+        /* FIXME: check this out */
+        if (rdev->family < CHIP_R600) {
+                int i;
+
+                for (i = 0; i < 8; i++) {
+                        WREG32(RADEON_SURFACE0_INFO +
+                               i * (RADEON_SURFACE1_INFO - RADEON_SURFACE0_INFO),
+                               0);
+                }
+                /* enable surfaces */
+                WREG32(RADEON_SURFACE_CNTL, 0);
+        }
+}
+
+/*
  * GPU scratch registers helpers function.
  */
 static void radeon_scratch_init(struct radeon_device *rdev)
@@ -102,7 +121,7 @@ int radeon_mc_setup(struct radeon_device *rdev)
         if (rdev->mc.vram_location != 0xFFFFFFFFUL) {
                 /* vram location was already setup try to put gtt after
                  * if it fits */
-                tmp = rdev->mc.vram_location + rdev->mc.vram_size;
+                tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size;
                 tmp = (tmp + rdev->mc.gtt_size - 1) & ~(rdev->mc.gtt_size - 1);
                 if ((0xFFFFFFFFUL - tmp) >= rdev->mc.gtt_size) {
                         rdev->mc.gtt_location = tmp;
@@ -117,13 +136,13 @@ int radeon_mc_setup(struct radeon_device *rdev)
         } else if (rdev->mc.gtt_location != 0xFFFFFFFFUL) {
                 /* gtt location was already setup try to put vram before
                  * if it fits */
-                if (rdev->mc.vram_size < rdev->mc.gtt_location) {
+                if (rdev->mc.mc_vram_size < rdev->mc.gtt_location) {
                         rdev->mc.vram_location = 0;
                 } else {
                         tmp = rdev->mc.gtt_location + rdev->mc.gtt_size;
-                        tmp += (rdev->mc.vram_size - 1);
-                        tmp &= ~(rdev->mc.vram_size - 1);
-                        if ((0xFFFFFFFFUL - tmp) >= rdev->mc.vram_size) {
+                        tmp += (rdev->mc.mc_vram_size - 1);
+                        tmp &= ~(rdev->mc.mc_vram_size - 1);
+                        if ((0xFFFFFFFFUL - tmp) >= rdev->mc.mc_vram_size) {
                                 rdev->mc.vram_location = tmp;
                         } else {
                                 printk(KERN_ERR "[drm] vram too big to fit "
@@ -133,12 +152,16 @@ int radeon_mc_setup(struct radeon_device *rdev)
                 }
         } else {
                 rdev->mc.vram_location = 0;
-                rdev->mc.gtt_location = rdev->mc.vram_size;
+                tmp = rdev->mc.mc_vram_size;
+                tmp = (tmp + rdev->mc.gtt_size - 1) & ~(rdev->mc.gtt_size - 1);
+                rdev->mc.gtt_location = tmp;
         }
-        DRM_INFO("radeon: VRAM %uM\n", rdev->mc.vram_size >> 20);
+        DRM_INFO("radeon: VRAM %uM\n", rdev->mc.real_vram_size >> 20);
         DRM_INFO("radeon: VRAM from 0x%08X to 0x%08X\n",
                  rdev->mc.vram_location,
-                 rdev->mc.vram_location + rdev->mc.vram_size - 1);
+                 rdev->mc.vram_location + rdev->mc.mc_vram_size - 1);
+        if (rdev->mc.real_vram_size != rdev->mc.mc_vram_size)
+                DRM_INFO("radeon: VRAM less than aperture workaround enabled\n");
         DRM_INFO("radeon: GTT %uM\n", rdev->mc.gtt_size >> 20);
         DRM_INFO("radeon: GTT from 0x%08X to 0x%08X\n",
                  rdev->mc.gtt_location,
@@ -433,6 +456,7 @@ int radeon_device_init(struct radeon_device *rdev,
                        uint32_t flags)
 {
         int r, ret;
+        int dma_bits;
 
         DRM_INFO("radeon: Initializing kernel modesetting.\n");
         rdev->shutdown = false;
@@ -475,8 +499,20 @@ int radeon_device_init(struct radeon_device *rdev,
                 return r;
         }
 
-        /* Report DMA addressing limitation */
-        r = pci_set_dma_mask(rdev->pdev, DMA_BIT_MASK(32));
+        /* set DMA mask + need_dma32 flags.
+         * PCIE - can handle 40-bits.
+         * IGP - can handle 40-bits (in theory)
+         * AGP - generally dma32 is safest
+         * PCI - only dma32
+         */
+        rdev->need_dma32 = false;
+        if (rdev->flags & RADEON_IS_AGP)
+                rdev->need_dma32 = true;
+        if (rdev->flags & RADEON_IS_PCI)
+                rdev->need_dma32 = true;
+
+        dma_bits = rdev->need_dma32 ? 32 : 40;
+        r = pci_set_dma_mask(rdev->pdev, DMA_BIT_MASK(dma_bits));
         if (r) {
                 printk(KERN_WARNING "radeon: No suitable DMA available.\n");
         }
@@ -496,6 +532,8 @@ int radeon_device_init(struct radeon_device *rdev,
         radeon_errata(rdev);
         /* Initialize scratch registers */
         radeon_scratch_init(rdev);
+        /* Initialize surface registers */
+        radeon_surface_init(rdev);
 
         /* TODO: disable VGA need to use VGA request */
         /* BIOS*/
@@ -527,27 +565,22 @@ int radeon_device_init(struct radeon_device *rdev,
                         radeon_combios_asic_init(rdev->ddev);
                 }
         }
+        /* Initialize clocks */
+        r = radeon_clocks_init(rdev);
+        if (r) {
+                return r;
+        }
         /* Get vram informations */
         radeon_vram_info(rdev);
-        /* Device is severly broken if aper size > vram size.
-         * for RN50/M6/M7 - Novell bug 204882 ?
-         */
-        if (rdev->mc.vram_size < rdev->mc.aper_size) {
-                rdev->mc.aper_size = rdev->mc.vram_size;
-        }
+
         /* Add an MTRR for the VRAM */
         rdev->mc.vram_mtrr = mtrr_add(rdev->mc.aper_base, rdev->mc.aper_size,
                                       MTRR_TYPE_WRCOMB, 1);
         DRM_INFO("Detected VRAM RAM=%uM, BAR=%uM\n",
-                 rdev->mc.vram_size >> 20,
+                 rdev->mc.real_vram_size >> 20,
                  (unsigned)rdev->mc.aper_size >> 20);
         DRM_INFO("RAM width %dbits %cDR\n",
                  rdev->mc.vram_width, rdev->mc.vram_is_ddr ? 'D' : 'S');
-        /* Initialize clocks */
-        r = radeon_clocks_init(rdev);
-        if (r) {
-                return r;
-        }
         /* Initialize memory controller (also test AGP) */
         r = radeon_mc_init(rdev);
         if (r) {
@@ -604,12 +637,12 @@ int radeon_device_init(struct radeon_device *rdev,
         if (r) {
                 return r;
         }
-        if (rdev->fbdev_rfb && rdev->fbdev_rfb->obj) {
-                rdev->fbdev_robj = rdev->fbdev_rfb->obj->driver_private;
-        }
         if (!ret) {
                 DRM_INFO("radeon: kernel modesetting successfully initialized.\n");
         }
+        if (radeon_testing) {
+                radeon_test_moves(rdev);
+        }
         if (radeon_benchmarking) {
                 radeon_benchmark(rdev);
         }
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 3efcf1a526be..a8fa1bb84cf7 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -187,6 +187,7 @@ static void radeon_crtc_init(struct drm_device *dev, int index)
 
         drm_mode_crtc_set_gamma_size(&radeon_crtc->base, 256);
         radeon_crtc->crtc_id = index;
+        rdev->mode_info.crtcs[index] = radeon_crtc;
 
         radeon_crtc->mode_set.crtc = &radeon_crtc->base;
         radeon_crtc->mode_set.connectors = (struct drm_connector **)(radeon_crtc + 1);
@@ -491,7 +492,11 @@ void radeon_compute_pll(struct radeon_pll *pll,
                                         tmp += (uint64_t)pll->reference_freq * 1000 * frac_feedback_div;
                                         current_freq = radeon_div(tmp, ref_div * post_div);
 
-                                        error = abs(current_freq - freq);
+                                        if (flags & RADEON_PLL_PREFER_CLOSEST_LOWER) {
+                                                error = freq - current_freq;
+                                                error = error < 0 ? 0xffffffff : error;
+                                        } else
+                                                error = abs(current_freq - freq);
                                         vco_diff = abs(vco - best_vco);
 
                                         if ((best_vco == 0 && error < best_error) ||
@@ -657,36 +662,51 @@ void radeon_modeset_fini(struct radeon_device *rdev)
         }
 }
 
-void radeon_init_disp_bandwidth(struct drm_device *dev)
+bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
+                                struct drm_display_mode *mode,
+                                struct drm_display_mode *adjusted_mode)
 {
-        struct radeon_device *rdev = dev->dev_private;
-        struct drm_display_mode *modes[2];
-        int pixel_bytes[2];
-        struct drm_crtc *crtc;
-
-        pixel_bytes[0] = pixel_bytes[1] = 0;
-        modes[0] = modes[1] = NULL;
-
-        list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
-                struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+        struct drm_device *dev = crtc->dev;
+        struct drm_encoder *encoder;
+        struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+        struct radeon_encoder *radeon_encoder;
+        bool first = true;
 
-                if (crtc->enabled && crtc->fb) {
-                        modes[radeon_crtc->crtc_id] = &crtc->mode;
-                        pixel_bytes[radeon_crtc->crtc_id] = crtc->fb->bits_per_pixel / 8;
+        list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+                radeon_encoder = to_radeon_encoder(encoder);
+                if (encoder->crtc != crtc)
+                        continue;
+                if (first) {
+                        radeon_crtc->rmx_type = radeon_encoder->rmx_type;
+                        radeon_crtc->devices = radeon_encoder->devices;
+                        memcpy(&radeon_crtc->native_mode,
+                                &radeon_encoder->native_mode,
+                                sizeof(struct radeon_native_mode));
+                        first = false;
+                } else {
+                        if (radeon_crtc->rmx_type != radeon_encoder->rmx_type) {
+                                /* WARNING: Right now this can't happen but
+                                 * in the future we need to check that scaling
+                                 * are consistent accross different encoder
+                                 * (ie all encoder can work with the same
+                                 *  scaling).
+                                 */
+                                DRM_ERROR("Scaling not consistent accross encoder.\n");
+                                return false;
+                        }
                 }
         }
-
-        if (ASIC_IS_AVIVO(rdev)) {
-                radeon_init_disp_bw_avivo(dev,
-                                          modes[0],
-                                          pixel_bytes[0],
-                                          modes[1],
-                                          pixel_bytes[1]);
+        if (radeon_crtc->rmx_type != RMX_OFF) {
+                fixed20_12 a, b;
+                a.full = rfixed_const(crtc->mode.vdisplay);
+                b.full = rfixed_const(radeon_crtc->native_mode.panel_xres);
+                radeon_crtc->vsc.full = rfixed_div(a, b);
+                a.full = rfixed_const(crtc->mode.hdisplay);
+                b.full = rfixed_const(radeon_crtc->native_mode.panel_yres);
+                radeon_crtc->hsc.full = rfixed_div(a, b);
         } else {
-                radeon_init_disp_bw_legacy(dev,
-                                           modes[0],
-                                           pixel_bytes[0],
-                                           modes[1],
-                                           pixel_bytes[1]);
+                radeon_crtc->vsc.full = rfixed_const(1);
+                radeon_crtc->hsc.full = rfixed_const(1);
         }
+        return true;
 }
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index 09c9fb9f6210..0bd5879a4957 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -89,6 +89,7 @@ int radeon_agpmode = 0;
 int radeon_vram_limit = 0;
 int radeon_gart_size = 512; /* default gart size */
 int radeon_benchmarking = 0;
+int radeon_testing = 0;
 int radeon_connector_table = 0;
 #endif
 
@@ -117,6 +118,9 @@ module_param_named(gartsize, radeon_gart_size, int, 0600);
 MODULE_PARM_DESC(benchmark, "Run benchmark");
 module_param_named(benchmark, radeon_benchmarking, int, 0444);
 
+MODULE_PARM_DESC(test, "Run tests");
+module_param_named(test, radeon_testing, int, 0444);
+
 MODULE_PARM_DESC(connector_table, "Force connector table");
 module_param_named(connector_table, radeon_connector_table, int, 0444);
 #endif
@@ -314,6 +318,14 @@ static int __init radeon_init(void)
         driver = &driver_old;
         driver->num_ioctls = radeon_max_ioctl;
 #if defined(CONFIG_DRM_RADEON_KMS)
+#ifdef CONFIG_VGA_CONSOLE
+        if (vgacon_text_force() && radeon_modeset == -1) {
+                DRM_INFO("VGACON disable radeon kernel modesetting.\n");
+                driver = &driver_old;
+                driver->driver_features &= ~DRIVER_MODESET;
+                radeon_modeset = 0;
+        }
+#endif
         /* if enabled by default */
         if (radeon_modeset == -1) {
                 DRM_INFO("radeon default to kernel modesetting.\n");
@@ -325,17 +337,8 @@ static int __init radeon_init(void)
                 driver->driver_features |= DRIVER_MODESET;
                 driver->num_ioctls = radeon_max_kms_ioctl;
         }
-
         /* if the vga console setting is enabled still
          * let modprobe override it */
-#ifdef CONFIG_VGA_CONSOLE
-        if (vgacon_text_force() && radeon_modeset == -1) {
-                DRM_INFO("VGACON disable radeon kernel modesetting.\n");
-                driver = &driver_old;
-                driver->driver_features &= ~DRIVER_MODESET;
-                radeon_modeset = 0;
-        }
-#endif
 #endif
         return drm_init(driver);
 }
@@ -345,7 +348,7 @@ static void __exit radeon_exit(void)
         drm_exit(driver);
 }
 
-late_initcall(radeon_init);
+module_init(radeon_init);
 module_exit(radeon_exit);
 
 MODULE_AUTHOR(DRIVER_AUTHOR);
diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h
index 127d0456f628..3933f8216a34 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.h
+++ b/drivers/gpu/drm/radeon/radeon_drv.h
@@ -143,6 +143,7 @@ enum radeon_family {
         CHIP_RV635,
         CHIP_RV670,
         CHIP_RS780,
+        CHIP_RS880,
         CHIP_RV770,
         CHIP_RV730,
         CHIP_RV710,
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index c8ef0d14ffab..0a92706eac19 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -154,7 +154,6 @@ void radeon_rmx_mode_fixup(struct drm_encoder *encoder,
 
         if (mode->hdisplay < native_mode->panel_xres ||
             mode->vdisplay < native_mode->panel_yres) {
-                radeon_encoder->flags |= RADEON_USE_RMX;
                 if (ASIC_IS_AVIVO(rdev)) {
                         adjusted_mode->hdisplay = native_mode->panel_xres;
                         adjusted_mode->vdisplay = native_mode->panel_yres;
@@ -197,15 +196,13 @@ void radeon_rmx_mode_fixup(struct drm_encoder *encoder,
         }
 }
 
+
 static bool radeon_atom_mode_fixup(struct drm_encoder *encoder,
                                    struct drm_display_mode *mode,
                                    struct drm_display_mode *adjusted_mode)
 {
-
         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 
-        radeon_encoder->flags &= ~RADEON_USE_RMX;
-
         drm_mode_set_crtcinfo(adjusted_mode, 0);
 
         if (radeon_encoder->rmx_type != RMX_OFF)
@@ -808,234 +805,6 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action)
 
 }
 
-static void atom_rv515_force_tv_scaler(struct radeon_device *rdev)
-{
-
-        WREG32(0x659C, 0x0);
-        WREG32(0x6594, 0x705);
-        WREG32(0x65A4, 0x10001);
-        WREG32(0x65D8, 0x0);
-        WREG32(0x65B0, 0x0);
-        WREG32(0x65C0, 0x0);
-        WREG32(0x65D4, 0x0);
-        WREG32(0x6578, 0x0);
-        WREG32(0x657C, 0x841880A8);
-        WREG32(0x6578, 0x1);
-        WREG32(0x657C, 0x84208680);
-        WREG32(0x6578, 0x2);
-        WREG32(0x657C, 0xBFF880B0);
-        WREG32(0x6578, 0x100);
-        WREG32(0x657C, 0x83D88088);
-        WREG32(0x6578, 0x101);
-        WREG32(0x657C, 0x84608680);
-        WREG32(0x6578, 0x102);
-        WREG32(0x657C, 0xBFF080D0);
-        WREG32(0x6578, 0x200);
-        WREG32(0x657C, 0x83988068);
-        WREG32(0x6578, 0x201);
-        WREG32(0x657C, 0x84A08680);
-        WREG32(0x6578, 0x202);
-        WREG32(0x657C, 0xBFF080F8);
-        WREG32(0x6578, 0x300);
-        WREG32(0x657C, 0x83588058);
-        WREG32(0x6578, 0x301);
-        WREG32(0x657C, 0x84E08660);
-        WREG32(0x6578, 0x302);
-        WREG32(0x657C, 0xBFF88120);
-        WREG32(0x6578, 0x400);
-        WREG32(0x657C, 0x83188040);
-        WREG32(0x6578, 0x401);
-        WREG32(0x657C, 0x85008660);
-        WREG32(0x6578, 0x402);
-        WREG32(0x657C, 0xBFF88150);
-        WREG32(0x6578, 0x500);
-        WREG32(0x657C, 0x82D88030);
-        WREG32(0x6578, 0x501);
-        WREG32(0x657C, 0x85408640);
-        WREG32(0x6578, 0x502);
-        WREG32(0x657C, 0xBFF88180);
-        WREG32(0x6578, 0x600);
-        WREG32(0x657C, 0x82A08018);
-        WREG32(0x6578, 0x601);
-        WREG32(0x657C, 0x85808620);
-        WREG32(0x6578, 0x602);
-        WREG32(0x657C, 0xBFF081B8);
-        WREG32(0x6578, 0x700);
-        WREG32(0x657C, 0x82608010);
-        WREG32(0x6578, 0x701);
-        WREG32(0x657C, 0x85A08600);
-        WREG32(0x6578, 0x702);
-        WREG32(0x657C, 0x800081F0);
-        WREG32(0x6578, 0x800);
-        WREG32(0x657C, 0x8228BFF8);
-        WREG32(0x6578, 0x801);
-        WREG32(0x657C, 0x85E085E0);
-        WREG32(0x6578, 0x802);
-        WREG32(0x657C, 0xBFF88228);
-        WREG32(0x6578, 0x10000);
-        WREG32(0x657C, 0x82A8BF00);
-        WREG32(0x6578, 0x10001);
-        WREG32(0x657C, 0x82A08CC0);
-        WREG32(0x6578, 0x10002);
-        WREG32(0x657C, 0x8008BEF8);
-        WREG32(0x6578, 0x10100);
-        WREG32(0x657C, 0x81F0BF28);
-        WREG32(0x6578, 0x10101);
-        WREG32(0x657C, 0x83608CA0);
-        WREG32(0x6578, 0x10102);
-        WREG32(0x657C, 0x8018BED0);
-        WREG32(0x6578, 0x10200);
-        WREG32(0x657C, 0x8148BF38);
-        WREG32(0x6578, 0x10201);
-        WREG32(0x657C, 0x84408C80);
-        WREG32(0x6578, 0x10202);
-        WREG32(0x657C, 0x8008BEB8);
-        WREG32(0x6578, 0x10300);
-        WREG32(0x657C, 0x80B0BF78);
-        WREG32(0x6578, 0x10301);
-        WREG32(0x657C, 0x85008C20);
-        WREG32(0x6578, 0x10302);
-        WREG32(0x657C, 0x8020BEA0);
-        WREG32(0x6578, 0x10400);
-        WREG32(0x657C, 0x8028BF90);
-        WREG32(0x6578, 0x10401);
-        WREG32(0x657C, 0x85E08BC0);
-        WREG32(0x6578, 0x10402);
-        WREG32(0x657C, 0x8018BE90);
-        WREG32(0x6578, 0x10500);
-        WREG32(0x657C, 0xBFB8BFB0);
-        WREG32(0x6578, 0x10501);
-        WREG32(0x657C, 0x86C08B40);
-        WREG32(0x6578, 0x10502);
-        WREG32(0x657C, 0x8010BE90);
-        WREG32(0x6578, 0x10600);
-        WREG32(0x657C, 0xBF58BFC8);
-        WREG32(0x6578, 0x10601);
-        WREG32(0x657C, 0x87A08AA0);
-        WREG32(0x6578, 0x10602);
-        WREG32(0x657C, 0x8010BE98);
-        WREG32(0x6578, 0x10700);
-        WREG32(0x657C, 0xBF10BFF0);
-        WREG32(0x6578, 0x10701);
-        WREG32(0x657C, 0x886089E0);
-        WREG32(0x6578, 0x10702);
-        WREG32(0x657C, 0x8018BEB0);
-        WREG32(0x6578, 0x10800);
-        WREG32(0x657C, 0xBED8BFE8);
-        WREG32(0x6578, 0x10801);
-        WREG32(0x657C, 0x89408940);
-        WREG32(0x6578, 0x10802);
-        WREG32(0x657C, 0xBFE8BED8);
-        WREG32(0x6578, 0x20000);
-        WREG32(0x657C, 0x80008000);
-        WREG32(0x6578, 0x20001);
-        WREG32(0x657C, 0x90008000);
-        WREG32(0x6578, 0x20002);
-        WREG32(0x657C, 0x80008000);
-        WREG32(0x6578, 0x20003);
-        WREG32(0x657C, 0x80008000);
-        WREG32(0x6578, 0x20100);
-        WREG32(0x657C, 0x80108000);
-        WREG32(0x6578, 0x20101);
-        WREG32(0x657C, 0x8FE0BF70);
-        WREG32(0x6578, 0x20102);
-        WREG32(0x657C, 0xBFE880C0);
-        WREG32(0x6578, 0x20103);
-        WREG32(0x657C, 0x80008000);
-        WREG32(0x6578, 0x20200);
-        WREG32(0x657C, 0x8018BFF8);
-        WREG32(0x6578, 0x20201);
-        WREG32(0x657C, 0x8F80BF08);
-        WREG32(0x6578, 0x20202);
-        WREG32(0x657C, 0xBFD081A0);
-        WREG32(0x6578, 0x20203);
-        WREG32(0x657C, 0xBFF88000);
-        WREG32(0x6578, 0x20300);
-        WREG32(0x657C, 0x80188000);
-        WREG32(0x6578, 0x20301);
-        WREG32(0x657C, 0x8EE0BEC0);
-        WREG32(0x6578, 0x20302);
-        WREG32(0x657C, 0xBFB082A0);
-        WREG32(0x6578, 0x20303);
-        WREG32(0x657C, 0x80008000);
-        WREG32(0x6578, 0x20400);
-        WREG32(0x657C, 0x80188000);
-        WREG32(0x6578, 0x20401);
-        WREG32(0x657C, 0x8E00BEA0);
-        WREG32(0x6578, 0x20402);
-        WREG32(0x657C, 0xBF8883C0);
-        WREG32(0x6578, 0x20403);
-        WREG32(0x657C, 0x80008000);
-        WREG32(0x6578, 0x20500);
-        WREG32(0x657C, 0x80188000);
-        WREG32(0x6578, 0x20501);
-        WREG32(0x657C, 0x8D00BE90);
-        WREG32(0x6578, 0x20502);
-        WREG32(0x657C, 0xBF588500);
-        WREG32(0x6578, 0x20503);
-        WREG32(0x657C, 0x80008008);
-        WREG32(0x6578, 0x20600);
-        WREG32(0x657C, 0x80188000);
-        WREG32(0x6578, 0x20601);
-        WREG32(0x657C, 0x8BC0BE98);
-        WREG32(0x6578, 0x20602);
-        WREG32(0x657C, 0xBF308660);
-        WREG32(0x6578, 0x20603);
-        WREG32(0x657C, 0x80008008);
-        WREG32(0x6578, 0x20700);
-        WREG32(0x657C, 0x80108000);
-        WREG32(0x6578, 0x20701);
-        WREG32(0x657C, 0x8A80BEB0);
-        WREG32(0x6578, 0x20702);
-        WREG32(0x657C, 0xBF0087C0);
-        WREG32(0x6578, 0x20703);
-        WREG32(0x657C, 0x80008008);
-        WREG32(0x6578, 0x20800);
-        WREG32(0x657C, 0x80108000);
-        WREG32(0x6578, 0x20801);
-        WREG32(0x657C, 0x8920BED0);
-        WREG32(0x6578, 0x20802);
-        WREG32(0x657C, 0xBED08920);
-        WREG32(0x6578, 0x20803);
-        WREG32(0x657C, 0x80008010);
-        WREG32(0x6578, 0x30000);
-        WREG32(0x657C, 0x90008000);
-        WREG32(0x6578, 0x30001);
-        WREG32(0x657C, 0x80008000);
-        WREG32(0x6578, 0x30100);
-        WREG32(0x657C, 0x8FE0BF90);
-        WREG32(0x6578, 0x30101);
-        WREG32(0x657C, 0xBFF880A0);
-        WREG32(0x6578, 0x30200);
-        WREG32(0x657C, 0x8F60BF40);
-        WREG32(0x6578, 0x30201);
-        WREG32(0x657C, 0xBFE88180);
-        WREG32(0x6578, 0x30300);
-        WREG32(0x657C, 0x8EC0BF00);
-        WREG32(0x6578, 0x30301);
-        WREG32(0x657C, 0xBFC88280);
-        WREG32(0x6578, 0x30400);
-        WREG32(0x657C, 0x8DE0BEE0);
-        WREG32(0x6578, 0x30401);
-        WREG32(0x657C, 0xBFA083A0);
-        WREG32(0x6578, 0x30500);
-        WREG32(0x657C, 0x8CE0BED0);
-        WREG32(0x6578, 0x30501);
-        WREG32(0x657C, 0xBF7884E0);
-        WREG32(0x6578, 0x30600);
-        WREG32(0x657C, 0x8BA0BED8);
-        WREG32(0x6578, 0x30601);
-        WREG32(0x657C, 0xBF508640);
-        WREG32(0x6578, 0x30700);
-        WREG32(0x657C, 0x8A60BEE8);
-        WREG32(0x6578, 0x30701);
-        WREG32(0x657C, 0xBF2087A0);
-        WREG32(0x6578, 0x30800);
-        WREG32(0x657C, 0x8900BF00);
-        WREG32(0x6578, 0x30801);
-        WREG32(0x657C, 0xBF008900);
-}
-
 static void
 atombios_yuv_setup(struct drm_encoder *encoder, bool enable)
 {
@@ -1074,129 +843,6 @@ atombios_yuv_setup(struct drm_encoder *encoder, bool enable)
 }
 
 static void
-atombios_overscan_setup(struct drm_encoder *encoder,
-                        struct drm_display_mode *mode,
-                        struct drm_display_mode *adjusted_mode)
-{
-        struct drm_device *dev = encoder->dev;
-        struct radeon_device *rdev = dev->dev_private;
-        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
-        struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
-        SET_CRTC_OVERSCAN_PS_ALLOCATION args;
-        int index = GetIndexIntoMasterTable(COMMAND, SetCRTC_OverScan);
-
-        memset(&args, 0, sizeof(args));
-
-        args.usOverscanRight = 0;
-        args.usOverscanLeft = 0;
-        args.usOverscanBottom = 0;
-        args.usOverscanTop = 0;
-        args.ucCRTC = radeon_crtc->crtc_id;
-
-        if (radeon_encoder->flags & RADEON_USE_RMX) {
-                if (radeon_encoder->rmx_type == RMX_FULL) {
-                        args.usOverscanRight = 0;
-                        args.usOverscanLeft = 0;
-                        args.usOverscanBottom = 0;
-                        args.usOverscanTop = 0;
-                } else if (radeon_encoder->rmx_type == RMX_CENTER) {
-                        args.usOverscanTop = (adjusted_mode->crtc_vdisplay - mode->crtc_vdisplay) / 2;
-                        args.usOverscanBottom = (adjusted_mode->crtc_vdisplay - mode->crtc_vdisplay) / 2;
-                        args.usOverscanLeft = (adjusted_mode->crtc_hdisplay - mode->crtc_hdisplay) / 2;
-                        args.usOverscanRight = (adjusted_mode->crtc_hdisplay - mode->crtc_hdisplay) / 2;
-                } else if (radeon_encoder->rmx_type == RMX_ASPECT) {
-                        int a1 = mode->crtc_vdisplay * adjusted_mode->crtc_hdisplay;
-                        int a2 = adjusted_mode->crtc_vdisplay * mode->crtc_hdisplay;
-
-                        if (a1 > a2) {
-                                args.usOverscanLeft = (adjusted_mode->crtc_hdisplay - (a2 / mode->crtc_vdisplay)) / 2;
-                                args.usOverscanRight = (adjusted_mode->crtc_hdisplay - (a2 / mode->crtc_vdisplay)) / 2;
-                        } else if (a2 > a1) {
-                                args.usOverscanLeft = (adjusted_mode->crtc_vdisplay - (a1 / mode->crtc_hdisplay)) / 2;
-                                args.usOverscanRight = (adjusted_mode->crtc_vdisplay - (a1 / mode->crtc_hdisplay)) / 2;
-                        }
-                }
-        }
-
-        atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
-
-}
-
-static void
-atombios_scaler_setup(struct drm_encoder *encoder)
-{
-        struct drm_device *dev = encoder->dev;
-        struct radeon_device *rdev = dev->dev_private;
-        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
-        struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
-        ENABLE_SCALER_PS_ALLOCATION args;
-        int index = GetIndexIntoMasterTable(COMMAND, EnableScaler);
-        /* fixme - fill in enc_priv for atom dac */
-        enum radeon_tv_std tv_std = TV_STD_NTSC;
-
-        if (!ASIC_IS_AVIVO(rdev) && radeon_crtc->crtc_id)
-                return;
-
-        memset(&args, 0, sizeof(args));
-
-        args.ucScaler = radeon_crtc->crtc_id;
-
-        if (radeon_encoder->devices & (ATOM_DEVICE_TV_SUPPORT)) {
-                switch (tv_std) {
-                case TV_STD_NTSC:
-                default:
-                        args.ucTVStandard = ATOM_TV_NTSC;
-                        break;
-                case TV_STD_PAL:
-                        args.ucTVStandard = ATOM_TV_PAL;
-                        break;
-                case TV_STD_PAL_M:
-                        args.ucTVStandard = ATOM_TV_PALM;
-                        break;
-                case TV_STD_PAL_60:
-                        args.ucTVStandard = ATOM_TV_PAL60;
-                        break;
-                case TV_STD_NTSC_J:
-                        args.ucTVStandard = ATOM_TV_NTSCJ;
-                        break;
-                case TV_STD_SCART_PAL:
-                        args.ucTVStandard = ATOM_TV_PAL; /* ??? */
-                        break;
-                case TV_STD_SECAM:
-                        args.ucTVStandard = ATOM_TV_SECAM;
-                        break;
-                case TV_STD_PAL_CN:
-                        args.ucTVStandard = ATOM_TV_PALCN;
-                        break;
-                }
-                args.ucEnable = SCALER_ENABLE_MULTITAP_MODE;
-        } else if (radeon_encoder->devices & (ATOM_DEVICE_CV_SUPPORT)) {
-                args.ucTVStandard = ATOM_TV_CV;
-                args.ucEnable = SCALER_ENABLE_MULTITAP_MODE;
-        } else if (radeon_encoder->flags & RADEON_USE_RMX) {
-                if (radeon_encoder->rmx_type == RMX_FULL)
-                        args.ucEnable = ATOM_SCALER_EXPANSION;
-                else if (radeon_encoder->rmx_type == RMX_CENTER)
-                        args.ucEnable = ATOM_SCALER_CENTER;
-                else if (radeon_encoder->rmx_type == RMX_ASPECT)
-                        args.ucEnable = ATOM_SCALER_EXPANSION;
-        } else {
-                if (ASIC_IS_AVIVO(rdev))
-                        args.ucEnable = ATOM_SCALER_DISABLE;
-                else
-                        args.ucEnable = ATOM_SCALER_CENTER;
-        }
-
-        atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
-
-        if (radeon_encoder->devices & (ATOM_DEVICE_CV_SUPPORT | ATOM_DEVICE_TV_SUPPORT)
-            && rdev->family >= CHIP_RV515 && rdev->family <= CHIP_RV570) {
-                atom_rv515_force_tv_scaler(rdev);
-        }
-
-}
-
-static void
 radeon_atom_encoder_dpms(struct drm_encoder *encoder, int mode)
 {
         struct drm_device *dev = encoder->dev;
@@ -1448,8 +1094,6 @@ radeon_atom_encoder_mode_set(struct drm_encoder *encoder,
         radeon_encoder->pixel_clock = adjusted_mode->clock;
 
         radeon_atombios_encoder_crtc_scratch_regs(encoder, radeon_crtc->crtc_id);
-        atombios_overscan_setup(encoder, mode, adjusted_mode);
-        atombios_scaler_setup(encoder);
         atombios_set_encoder_crtc_source(encoder);
 
         if (ASIC_IS_AVIVO(rdev)) {
@@ -1667,6 +1311,7 @@ radeon_add_atom_encoder(struct drm_device *dev, uint32_t encoder_id, uint32_t su
 
         radeon_encoder->encoder_id = encoder_id;
         radeon_encoder->devices = supported_device;
+        radeon_encoder->rmx_type = RMX_OFF;
 
         switch (radeon_encoder->encoder_id) {
         case ENCODER_OBJECT_ID_INTERNAL_LVDS:
diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c
index fa86d398945e..3206c0ad7b6c 100644
--- a/drivers/gpu/drm/radeon/radeon_fb.c
+++ b/drivers/gpu/drm/radeon/radeon_fb.c
@@ -101,9 +101,10 @@ static int radeonfb_setcolreg(unsigned regno,
                                 break;
                         case 24:
                         case 32:
-                                fb->pseudo_palette[regno] = ((red & 0xff00) << 8) |
-                                        (green & 0xff00) |
-                                        ((blue  & 0xff00) >> 8);
+                                fb->pseudo_palette[regno] =
+                                        (((red >> 8) & 0xff) << info->var.red.offset) |
+                                        (((green >> 8) & 0xff) << info->var.green.offset) |
+                                        (((blue >> 8) & 0xff) << info->var.blue.offset);
                                 break;
                         }
                 }
@@ -154,6 +155,7 @@ static int radeonfb_check_var(struct fb_var_screeninfo *var,
                 var->transp.length = 0;
                 var->transp.offset = 0;
                 break;
+#ifdef __LITTLE_ENDIAN
         case 15:
                 var->red.offset = 10;
                 var->green.offset = 5;
@@ -194,6 +196,28 @@ static int radeonfb_check_var(struct fb_var_screeninfo *var,
                 var->transp.length = 8;
                 var->transp.offset = 24;
                 break;
+#else
+        case 24:
+                var->red.offset = 8;
+                var->green.offset = 16;
+                var->blue.offset = 24;
+                var->red.length = 8;
+                var->green.length = 8;
+                var->blue.length = 8;
+                var->transp.length = 0;
+                var->transp.offset = 0;
+                break;
+        case 32:
+                var->red.offset = 8;
+                var->green.offset = 16;
+                var->blue.offset = 24;
+                var->red.length = 8;
+                var->green.length = 8;
+                var->blue.length = 8;
+                var->transp.length = 8;
+                var->transp.offset = 0;
+                break;
+#endif
         default:
                 return -EINVAL;
         }
@@ -447,10 +471,10 @@ static struct notifier_block paniced = {
         .notifier_call = radeonfb_panic,
 };
 
-static int radeon_align_pitch(struct radeon_device *rdev, int width, int bpp)
+static int radeon_align_pitch(struct radeon_device *rdev, int width, int bpp, bool tiled)
 {
         int aligned = width;
-        int align_large = (ASIC_IS_AVIVO(rdev));
+        int align_large = (ASIC_IS_AVIVO(rdev)) || tiled;
         int pitch_mask = 0;
 
         switch (bpp / 8) {
@@ -478,36 +502,42 @@ int radeonfb_create(struct radeon_device *rdev,
 {
         struct fb_info *info;
         struct radeon_fb_device *rfbdev;
-        struct drm_framebuffer *fb;
+        struct drm_framebuffer *fb = NULL;
         struct radeon_framebuffer *rfb;
         struct drm_mode_fb_cmd mode_cmd;
         struct drm_gem_object *gobj = NULL;
         struct radeon_object *robj = NULL;
         struct device *device = &rdev->pdev->dev;
         int size, aligned_size, ret;
+        u64 fb_gpuaddr;
         void *fbptr = NULL;
+        unsigned long tmp;
+        bool fb_tiled = false; /* useful for testing */
 
         mode_cmd.width = surface_width;
         mode_cmd.height = surface_height;
         mode_cmd.bpp = 32;
         /* need to align pitch with crtc limits */
-        mode_cmd.pitch = radeon_align_pitch(rdev, mode_cmd.width, mode_cmd.bpp) * ((mode_cmd.bpp + 1) / 8);
+        mode_cmd.pitch = radeon_align_pitch(rdev, mode_cmd.width, mode_cmd.bpp, fb_tiled) * ((mode_cmd.bpp + 1) / 8);
         mode_cmd.depth = 24;
 
         size = mode_cmd.pitch * mode_cmd.height;
         aligned_size = ALIGN(size, PAGE_SIZE);
 
         ret = radeon_gem_object_create(rdev, aligned_size, 0,
-                                       RADEON_GEM_DOMAIN_VRAM,
-                                       false, ttm_bo_type_kernel,
-                                       false, &gobj);
+                        RADEON_GEM_DOMAIN_VRAM,
+                        false, ttm_bo_type_kernel,
+                        false, &gobj);
         if (ret) {
-                printk(KERN_ERR "failed to allocate framebuffer\n");
+                printk(KERN_ERR "failed to allocate framebuffer (%d %d)\n",
+                       surface_width, surface_height);
                 ret = -ENOMEM;
                 goto out;
         }
         robj = gobj->driver_private;
 
+        if (fb_tiled)
+                radeon_object_set_tiling_flags(robj, RADEON_TILING_MACRO|RADEON_TILING_SURFACE, mode_cmd.pitch);
         mutex_lock(&rdev->ddev->struct_mutex);
         fb = radeon_framebuffer_create(rdev->ddev, &mode_cmd, gobj);
         if (fb == NULL) {
@@ -515,12 +545,19 @@ int radeonfb_create(struct radeon_device *rdev,
                 ret = -ENOMEM;
                 goto out_unref;
         }
+        ret = radeon_object_pin(robj, RADEON_GEM_DOMAIN_VRAM, &fb_gpuaddr);
+        if (ret) {
+                printk(KERN_ERR "failed to pin framebuffer\n");
+                ret = -ENOMEM;
+                goto out_unref;
+        }
 
         list_add(&fb->filp_head, &rdev->ddev->mode_config.fb_kernel_list);
 
         rfb = to_radeon_framebuffer(fb);
         *rfb_p = rfb;
         rdev->fbdev_rfb = rfb;
+        rdev->fbdev_robj = robj;
 
         info = framebuffer_alloc(sizeof(struct radeon_fb_device), device);
         if (info == NULL) {
@@ -529,6 +566,9 @@ int radeonfb_create(struct radeon_device *rdev,
         }
         rfbdev = info->par;
 
+        if (fb_tiled)
+                radeon_object_check_tiling(robj, 0, 0);
+
         ret = radeon_object_kmap(robj, &fbptr);
         if (ret) {
                 goto out_unref;
@@ -541,13 +581,13 @@ int radeonfb_create(struct radeon_device *rdev,
         info->fix.xpanstep = 1; /* doing it in hw */
         info->fix.ypanstep = 1; /* doing it in hw */
         info->fix.ywrapstep = 0;
-        info->fix.accel = FB_ACCEL_I830;
+        info->fix.accel = FB_ACCEL_NONE;
         info->fix.type_aux = 0;
         info->flags = FBINFO_DEFAULT;
         info->fbops = &radeonfb_ops;
         info->fix.line_length = fb->pitch;
-        info->screen_base = fbptr;
-        info->fix.smem_start = (unsigned long)fbptr;
+        tmp = fb_gpuaddr - rdev->mc.vram_location;
+        info->fix.smem_start = rdev->mc.aper_base + tmp;
         info->fix.smem_len = size;
         info->screen_base = fbptr;
         info->screen_size = size;
@@ -562,8 +602,13 @@ int radeonfb_create(struct radeon_device *rdev,
         info->var.width = -1;
         info->var.xres = fb_width;
         info->var.yres = fb_height;
-        info->fix.mmio_start = pci_resource_start(rdev->pdev, 2);
-        info->fix.mmio_len = pci_resource_len(rdev->pdev, 2);
+
+        /* setup aperture base/size for vesafb takeover */
+        info->aperture_base = rdev->ddev->mode_config.fb_base;
+        info->aperture_size = rdev->mc.real_vram_size;
+
+        info->fix.mmio_start = 0;
+        info->fix.mmio_len = 0;
         info->pixmap.size = 64*1024;
         info->pixmap.buf_align = 8;
         info->pixmap.access_align = 32;
@@ -590,6 +635,7 @@ int radeonfb_create(struct radeon_device *rdev,
                 info->var.transp.offset = 0;
                 info->var.transp.length = 0;
                 break;
+#ifdef __LITTLE_ENDIAN
         case 15:
                 info->var.red.offset = 10;
                 info->var.green.offset = 5;
@@ -629,7 +675,29 @@ int radeonfb_create(struct radeon_device *rdev,
                 info->var.transp.offset = 24;
                 info->var.transp.length = 8;
                 break;
+#else
+        case 24:
+                info->var.red.offset = 8;
+                info->var.green.offset = 16;
+                info->var.blue.offset = 24;
+                info->var.red.length = 8;
+                info->var.green.length = 8;
+                info->var.blue.length = 8;
+                info->var.transp.offset = 0;
+                info->var.transp.length = 0;
+                break;
+        case 32:
+                info->var.red.offset = 8;
+                info->var.green.offset = 16;
+                info->var.blue.offset = 24;
+                info->var.red.length = 8;
+                info->var.green.length = 8;
+                info->var.blue.length = 8;
+                info->var.transp.offset = 0;
+                info->var.transp.length = 8;
+                break;
         default:
+#endif
                 break;
         }
 
@@ -644,7 +712,7 @@ out_unref:
         if (robj) {
                 radeon_object_kunmap(robj);
         }
-        if (ret) {
+        if (fb && ret) {
                 list_del(&fb->filp_head);
                 drm_gem_object_unreference(gobj);
                 drm_framebuffer_cleanup(fb);
@@ -813,6 +881,7 @@ int radeonfb_remove(struct drm_device *dev, struct drm_framebuffer *fb)
                 robj = rfb->obj->driver_private;
                 unregister_framebuffer(info);
                 radeon_object_kunmap(robj);
+                radeon_object_unpin(robj);
                 framebuffer_release(info);
         }
 
diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c
index 96afbf5ae2ad..b4e48dd2e859 100644
--- a/drivers/gpu/drm/radeon/radeon_fence.c
+++ b/drivers/gpu/drm/radeon/radeon_fence.c
@@ -195,7 +195,7 @@ retry:
                 r = wait_event_interruptible_timeout(rdev->fence_drv.queue,
                                 radeon_fence_signaled(fence), timeout);
                 if (unlikely(r == -ERESTARTSYS)) {
-                        return -ERESTART;
+                        return -EBUSY;
                 }
         } else {
                 r = wait_event_timeout(rdev->fence_drv.queue,
diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c
index d343a15316ec..2977539880fb 100644
--- a/drivers/gpu/drm/radeon/radeon_gart.c
+++ b/drivers/gpu/drm/radeon/radeon_gart.c
@@ -177,7 +177,7 @@ int radeon_gart_bind(struct radeon_device *rdev, unsigned offset,
                         return -ENOMEM;
                 }
                 rdev->gart.pages[p] = pagelist[i];
-                page_base = (uint32_t)rdev->gart.pages_addr[p];
+                page_base = rdev->gart.pages_addr[p];
                 for (j = 0; j < (PAGE_SIZE / 4096); j++, t++) {
                         radeon_gart_set_page(rdev, t, page_base);
                         page_base += 4096;
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index eb516034235d..cded5180c752 100644
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -157,9 +157,9 @@ int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
         struct radeon_device *rdev = dev->dev_private;
         struct drm_radeon_gem_info *args = data;
 
-        args->vram_size = rdev->mc.vram_size;
+        args->vram_size = rdev->mc.real_vram_size;
         /* FIXME: report somethings that makes sense */
-        args->vram_visible = rdev->mc.vram_size - (4 * 1024 * 1024);
+        args->vram_visible = rdev->mc.real_vram_size - (4 * 1024 * 1024);
         args->gart_size = rdev->mc.gtt_size;
         return 0;
 }
@@ -285,3 +285,44 @@ int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
         mutex_unlock(&dev->struct_mutex);
         return r;
 }
+
+int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
+                                struct drm_file *filp)
+{
+        struct drm_radeon_gem_set_tiling *args = data;
+        struct drm_gem_object *gobj;
+        struct radeon_object *robj;
+        int r = 0;
+
+        DRM_DEBUG("%d \n", args->handle);
+        gobj = drm_gem_object_lookup(dev, filp, args->handle);
+        if (gobj == NULL)
+                return -EINVAL;
+        robj = gobj->driver_private;
+        radeon_object_set_tiling_flags(robj, args->tiling_flags, args->pitch);
+        mutex_lock(&dev->struct_mutex);
+        drm_gem_object_unreference(gobj);
+        mutex_unlock(&dev->struct_mutex);
+        return r;
+}
+
+int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
+                                struct drm_file *filp)
+{
+        struct drm_radeon_gem_get_tiling *args = data;
+        struct drm_gem_object *gobj;
+        struct radeon_object *robj;
+        int r = 0;
+
+        DRM_DEBUG("\n");
+        gobj = drm_gem_object_lookup(dev, filp, args->handle);
+        if (gobj == NULL)
+                return -EINVAL;
+        robj = gobj->driver_private;
+        radeon_object_get_tiling_flags(robj, &args->tiling_flags,
+                                       &args->pitch);
+        mutex_lock(&dev->struct_mutex);
+        drm_gem_object_unreference(gobj);
+        mutex_unlock(&dev->struct_mutex);
+        return r;
+}
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 4612a7c146d1..3357110e30ce 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -58,6 +58,8 @@ int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
         if (r) {
                 DRM_ERROR("Failed to initialize radeon, disabling IOCTL\n");
                 radeon_device_fini(rdev);
+                kfree(rdev);
+                dev->dev_private = NULL;
                 return r;
         }
         return 0;
@@ -291,5 +293,7 @@ struct drm_ioctl_desc radeon_ioctls_kms[] = {
         DRM_IOCTL_DEF(DRM_RADEON_GEM_WAIT_IDLE, radeon_gem_wait_idle_ioctl, DRM_AUTH),
         DRM_IOCTL_DEF(DRM_RADEON_CS, radeon_cs_ioctl, DRM_AUTH),
         DRM_IOCTL_DEF(DRM_RADEON_INFO, radeon_info_ioctl, DRM_AUTH),
+        DRM_IOCTL_DEF(DRM_RADEON_GEM_SET_TILING, radeon_gem_set_tiling_ioctl, DRM_AUTH),
+        DRM_IOCTL_DEF(DRM_RADEON_GEM_GET_TILING, radeon_gem_get_tiling_ioctl, DRM_AUTH),
 };
 int radeon_max_kms_ioctl = DRM_ARRAY_SIZE(radeon_ioctls_kms);
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
index 8086ecf7f03d..7d06dc98a42a 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
@@ -29,6 +29,171 @@
 #include "radeon_fixed.h"
 #include "radeon.h"
 
+static void radeon_legacy_rmx_mode_set(struct drm_crtc *crtc,
+                                       struct drm_display_mode *mode,
+                                       struct drm_display_mode *adjusted_mode)
+{
+        struct drm_device *dev = crtc->dev;
+        struct radeon_device *rdev = dev->dev_private;
+        struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+        int xres = mode->hdisplay;
+        int yres = mode->vdisplay;
+        bool hscale = true, vscale = true;
+        int hsync_wid;
+        int vsync_wid;
+        int hsync_start;
+        int blank_width;
+        u32 scale, inc, crtc_more_cntl;
+        u32 fp_horz_stretch, fp_vert_stretch, fp_horz_vert_active;
+        u32 fp_h_sync_strt_wid, fp_crtc_h_total_disp;
+        u32 fp_v_sync_strt_wid, fp_crtc_v_total_disp;
+        struct radeon_native_mode *native_mode = &radeon_crtc->native_mode;
+
+        fp_vert_stretch = RREG32(RADEON_FP_VERT_STRETCH) &
+                (RADEON_VERT_STRETCH_RESERVED |
+                 RADEON_VERT_AUTO_RATIO_INC);
+        fp_horz_stretch = RREG32(RADEON_FP_HORZ_STRETCH) &
+                (RADEON_HORZ_FP_LOOP_STRETCH |
+                 RADEON_HORZ_AUTO_RATIO_INC);
+
+        crtc_more_cntl = 0;
+        if ((rdev->family == CHIP_RS100) ||
+            (rdev->family == CHIP_RS200)) {
+                /* This is to workaround the asic bug for RMX, some versions
+                   of BIOS dosen't have this register initialized correctly. */
+                crtc_more_cntl |= RADEON_CRTC_H_CUTOFF_ACTIVE_EN;
+        }
+
+
+        fp_crtc_h_total_disp = ((((mode->crtc_htotal / 8) - 1) & 0x3ff)
+                                | ((((mode->crtc_hdisplay / 8) - 1) & 0x1ff) << 16));
+
+        hsync_wid = (mode->crtc_hsync_end - mode->crtc_hsync_start) / 8;
+        if (!hsync_wid)
+                hsync_wid = 1;
+        hsync_start = mode->crtc_hsync_start - 8;
+
+        fp_h_sync_strt_wid = ((hsync_start & 0x1fff)
+                              | ((hsync_wid & 0x3f) << 16)
+                              | ((mode->flags & DRM_MODE_FLAG_NHSYNC)
+                                 ? RADEON_CRTC_H_SYNC_POL
+                                 : 0));
+
+        fp_crtc_v_total_disp = (((mode->crtc_vtotal - 1) & 0xffff)
+                                | ((mode->crtc_vdisplay - 1) << 16));
+
+        vsync_wid = mode->crtc_vsync_end - mode->crtc_vsync_start;
+        if (!vsync_wid)
+                vsync_wid = 1;
+
+        fp_v_sync_strt_wid = (((mode->crtc_vsync_start - 1) & 0xfff)
+                              | ((vsync_wid & 0x1f) << 16)
+                              | ((mode->flags & DRM_MODE_FLAG_NVSYNC)
+                                 ? RADEON_CRTC_V_SYNC_POL
+                                 : 0));
+
+        fp_horz_vert_active = 0;
+
+        if (native_mode->panel_xres == 0 ||
+            native_mode->panel_yres == 0) {
+                hscale = false;
+                vscale = false;
+        } else {
+                if (xres > native_mode->panel_xres)
+                        xres = native_mode->panel_xres;
+                if (yres > native_mode->panel_yres)
+                        yres = native_mode->panel_yres;
+
+                if (xres == native_mode->panel_xres)
+                        hscale = false;
+                if (yres == native_mode->panel_yres)
+                        vscale = false;
+        }
+
+        switch (radeon_crtc->rmx_type) {
+        case RMX_FULL:
+        case RMX_ASPECT:
+                if (!hscale)
+                        fp_horz_stretch |= ((xres/8-1) << 16);
+                else {
+                        inc = (fp_horz_stretch & RADEON_HORZ_AUTO_RATIO_INC) ? 1 : 0;
+                        scale = ((xres + inc) * RADEON_HORZ_STRETCH_RATIO_MAX)
+                                / native_mode->panel_xres + 1;
+                        fp_horz_stretch |= (((scale) & RADEON_HORZ_STRETCH_RATIO_MASK) |
+                                        RADEON_HORZ_STRETCH_BLEND |
+                                        RADEON_HORZ_STRETCH_ENABLE |
+                                        ((native_mode->panel_xres/8-1) << 16));
+                }
+
+                if (!vscale)
+                        fp_vert_stretch |= ((yres-1) << 12);
+                else {
+                        inc = (fp_vert_stretch & RADEON_VERT_AUTO_RATIO_INC) ? 1 : 0;
+                        scale = ((yres + inc) * RADEON_VERT_STRETCH_RATIO_MAX)
+                                / native_mode->panel_yres + 1;
+                        fp_vert_stretch |= (((scale) & RADEON_VERT_STRETCH_RATIO_MASK) |
+                                        RADEON_VERT_STRETCH_ENABLE |
+                                        RADEON_VERT_STRETCH_BLEND |
+                                        ((native_mode->panel_yres-1) << 12));
+                }
+                break;
+        case RMX_CENTER:
+                fp_horz_stretch |= ((xres/8-1) << 16);
+                fp_vert_stretch |= ((yres-1) << 12);
+
+                crtc_more_cntl |= (RADEON_CRTC_AUTO_HORZ_CENTER_EN |
+                                RADEON_CRTC_AUTO_VERT_CENTER_EN);
+
+                blank_width = (mode->crtc_hblank_end - mode->crtc_hblank_start) / 8;
+                if (blank_width > 110)
+                        blank_width = 110;
+
+                fp_crtc_h_total_disp = (((blank_width) & 0x3ff)
+                                | ((((mode->crtc_hdisplay / 8) - 1) & 0x1ff) << 16));
+
+                hsync_wid = (mode->crtc_hsync_end - mode->crtc_hsync_start) / 8;
+                if (!hsync_wid)
+                        hsync_wid = 1;
+
+                fp_h_sync_strt_wid = ((((mode->crtc_hsync_start - mode->crtc_hblank_start) / 8) & 0x1fff)
+                                | ((hsync_wid & 0x3f) << 16)
+                                | ((mode->flags & DRM_MODE_FLAG_NHSYNC)
+                                        ? RADEON_CRTC_H_SYNC_POL
+                                        : 0));
+
+                fp_crtc_v_total_disp = (((mode->crtc_vblank_end - mode->crtc_vblank_start) & 0xffff)
+                                | ((mode->crtc_vdisplay - 1) << 16));
+
+                vsync_wid = mode->crtc_vsync_end - mode->crtc_vsync_start;
+                if (!vsync_wid)
+                        vsync_wid = 1;
+
+                fp_v_sync_strt_wid = ((((mode->crtc_vsync_start - mode->crtc_vblank_start) & 0xfff)
+                                        | ((vsync_wid & 0x1f) << 16)
+                                        | ((mode->flags & DRM_MODE_FLAG_NVSYNC)
+                                                ? RADEON_CRTC_V_SYNC_POL
+                                                : 0)));
+
+                fp_horz_vert_active = (((native_mode->panel_yres) & 0xfff) |
+                                (((native_mode->panel_xres / 8) & 0x1ff) << 16));
+                break;
+        case RMX_OFF:
+        default:
+                fp_horz_stretch |= ((xres/8-1) << 16);
+                fp_vert_stretch |= ((yres-1) << 12);
+                break;
+        }
+
+        WREG32(RADEON_FP_HORZ_STRETCH,      fp_horz_stretch);
+        WREG32(RADEON_FP_VERT_STRETCH,      fp_vert_stretch);
+        WREG32(RADEON_CRTC_MORE_CNTL,       crtc_more_cntl);
+        WREG32(RADEON_FP_HORZ_VERT_ACTIVE,  fp_horz_vert_active);
+        WREG32(RADEON_FP_H_SYNC_STRT_WID,   fp_h_sync_strt_wid);
+        WREG32(RADEON_FP_V_SYNC_STRT_WID,   fp_v_sync_strt_wid);
+        WREG32(RADEON_FP_CRTC_H_TOTAL_DISP, fp_crtc_h_total_disp);
+        WREG32(RADEON_FP_CRTC_V_TOTAL_DISP, fp_crtc_v_total_disp);
+}
+
 void radeon_restore_common_regs(struct drm_device *dev)
 {
         /* don't need this yet */
@@ -235,6 +400,7 @@ int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y,
         uint64_t base;
         uint32_t crtc_offset, crtc_offset_cntl, crtc_tile_x0_y0 = 0;
         uint32_t crtc_pitch, pitch_pixels;
+        uint32_t tiling_flags;
 
         DRM_DEBUG("\n");
 
@@ -244,7 +410,12 @@ int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y,
         if (radeon_gem_object_pin(obj, RADEON_GEM_DOMAIN_VRAM, &base)) {
                 return -EINVAL;
         }
-        crtc_offset = (u32)base;
+        /* if scanout was in GTT this really wouldn't work */
+        /* crtc offset is from display base addr not FB location */
+        radeon_crtc->legacy_display_base_addr = rdev->mc.vram_location;
+
+        base -= radeon_crtc->legacy_display_base_addr;
+
         crtc_offset_cntl = 0;
 
         pitch_pixels = crtc->fb->pitch / (crtc->fb->bits_per_pixel / 8);
@@ -253,8 +424,12 @@ int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y,
                        (crtc->fb->bits_per_pixel * 8));
         crtc_pitch |= crtc_pitch << 16;
 
-        /* TODO tiling */
-        if (0) {
+        radeon_object_get_tiling_flags(obj->driver_private,
+                                       &tiling_flags, NULL);
+        if (tiling_flags & RADEON_TILING_MICRO)
+                DRM_ERROR("trying to scanout microtiled buffer\n");
+
+        if (tiling_flags & RADEON_TILING_MACRO) {
                 if (ASIC_IS_R300(rdev))
                         crtc_offset_cntl |= (R300_CRTC_X_Y_MODE_EN |
                                              R300_CRTC_MICRO_TILE_BUFFER_DIS |
@@ -270,15 +445,13 @@ int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y,
                         crtc_offset_cntl &= ~RADEON_CRTC_TILE_EN;
         }
 
-
-        /* TODO more tiling */
-        if (0) {
+        if (tiling_flags & RADEON_TILING_MACRO) {
                 if (ASIC_IS_R300(rdev)) {
                         crtc_tile_x0_y0 = x | (y << 16);
                         base &= ~0x7ff;
                 } else {
                         int byteshift = crtc->fb->bits_per_pixel >> 4;
-                        int tile_addr = (((y >> 3) * crtc->fb->width + x) >> (8 - byteshift)) << 11;
+                        int tile_addr = (((y >> 3) * pitch_pixels +  x) >> (8 - byteshift)) << 11;
                         base += tile_addr + ((x << byteshift) % 256) + ((y % 8) << 8);
                         crtc_offset_cntl |= (y % 16);
                 }
@@ -303,11 +476,9 @@ int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y,
 
         base &= ~7;
 
-        /* update sarea TODO */
-
         crtc_offset = (u32)base;
 
-        WREG32(RADEON_DISPLAY_BASE_ADDR + radeon_crtc->crtc_offset, rdev->mc.vram_location);
+        WREG32(RADEON_DISPLAY_BASE_ADDR + radeon_crtc->crtc_offset, radeon_crtc->legacy_display_base_addr);
 
         if (ASIC_IS_R300(rdev)) {
                 if (radeon_crtc->crtc_id)
@@ -751,6 +922,8 @@ static bool radeon_crtc_mode_fixup(struct drm_crtc *crtc,
                                    struct drm_display_mode *mode,
                                    struct drm_display_mode *adjusted_mode)
 {
+        if (!radeon_crtc_scaling_mode_fixup(crtc, mode, adjusted_mode))
+                return false;
         return true;
 }
 
@@ -759,16 +932,25 @@ static int radeon_crtc_mode_set(struct drm_crtc *crtc,
                                  struct drm_display_mode *adjusted_mode,
                                  int x, int y, struct drm_framebuffer *old_fb)
 {
-
-        DRM_DEBUG("\n");
+        struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+        struct drm_device *dev = crtc->dev;
+        struct radeon_device *rdev = dev->dev_private;
 
         /* TODO TV */
-
         radeon_crtc_set_base(crtc, x, y, old_fb);
         radeon_set_crtc_timing(crtc, adjusted_mode);
         radeon_set_pll(crtc, adjusted_mode);
-        radeon_init_disp_bandwidth(crtc->dev);
-
+        radeon_bandwidth_update(rdev);
+        if (radeon_crtc->crtc_id == 0) {
+                radeon_legacy_rmx_mode_set(crtc, mode, adjusted_mode);
+        } else {
+                if (radeon_crtc->rmx_type != RMX_OFF) {
+                        /* FIXME: only first crtc has rmx what should we
+                         * do ?
+                         */
+                        DRM_ERROR("Mode need scaling but only first crtc can do that.\n");
+                }
+        }
         return 0;
 }
 
@@ -799,478 +981,3 @@ void radeon_legacy_init_crtc(struct drm_device *dev,
                 radeon_crtc->crtc_offset = RADEON_CRTC2_H_TOTAL_DISP - RADEON_CRTC_H_TOTAL_DISP;
         drm_crtc_helper_add(&radeon_crtc->base, &legacy_helper_funcs);
 }
-
-void radeon_init_disp_bw_legacy(struct drm_device *dev,
-                                struct drm_display_mode *mode1,
-                                uint32_t pixel_bytes1,
-                                struct drm_display_mode *mode2,
-                                uint32_t pixel_bytes2)
-{
-        struct radeon_device *rdev = dev->dev_private;
-        fixed20_12 trcd_ff, trp_ff, tras_ff, trbs_ff, tcas_ff;
-        fixed20_12 sclk_ff, mclk_ff, sclk_eff_ff, sclk_delay_ff;
-        fixed20_12 peak_disp_bw, mem_bw, pix_clk, pix_clk2, temp_ff, crit_point_ff;
-        uint32_t temp, data, mem_trcd, mem_trp, mem_tras;
-        fixed20_12 memtcas_ff[8] = {
-                fixed_init(1),
-                fixed_init(2),
-                fixed_init(3),
-                fixed_init(0),
-                fixed_init_half(1),
-                fixed_init_half(2),
-                fixed_init(0),
-        };
-        fixed20_12 memtcas_rs480_ff[8] = {
-                fixed_init(0),
-                fixed_init(1),
-                fixed_init(2),
-                fixed_init(3),
-                fixed_init(0),
-                fixed_init_half(1),
-                fixed_init_half(2),
-                fixed_init_half(3),
-        };
-        fixed20_12 memtcas2_ff[8] = {
-                fixed_init(0),
-                fixed_init(1),
-                fixed_init(2),
-                fixed_init(3),
-                fixed_init(4),
-                fixed_init(5),
-                fixed_init(6),
-                fixed_init(7),
-        };
-        fixed20_12 memtrbs[8] = {
-                fixed_init(1),
-                fixed_init_half(1),
-                fixed_init(2),
-                fixed_init_half(2),
-                fixed_init(3),
-                fixed_init_half(3),
-                fixed_init(4),
-                fixed_init_half(4)
-        };
-        fixed20_12 memtrbs_r4xx[8] = {
-                fixed_init(4),
-                fixed_init(5),
-                fixed_init(6),
-                fixed_init(7),
-                fixed_init(8),
-                fixed_init(9),
-                fixed_init(10),
-                fixed_init(11)
-        };
-        fixed20_12 min_mem_eff;
-        fixed20_12 mc_latency_sclk, mc_latency_mclk, k1;
-        fixed20_12 cur_latency_mclk, cur_latency_sclk;
-        fixed20_12 disp_latency, disp_latency_overhead, disp_drain_rate,
-                disp_drain_rate2, read_return_rate;
-        fixed20_12 time_disp1_drop_priority;
-        int c;
-        int cur_size = 16;       /* in octawords */
-        int critical_point = 0, critical_point2;
-/*      uint32_t read_return_rate, time_disp1_drop_priority; */
-        int stop_req, max_stop_req;
-
-        min_mem_eff.full = rfixed_const_8(0);
-        /* get modes */
-        if ((rdev->disp_priority == 2) && ASIC_IS_R300(rdev)) {
-                uint32_t mc_init_misc_lat_timer = RREG32(R300_MC_INIT_MISC_LAT_TIMER);
-                mc_init_misc_lat_timer &= ~(R300_MC_DISP1R_INIT_LAT_MASK << R300_MC_DISP1R_INIT_LAT_SHIFT);
-                mc_init_misc_lat_timer &= ~(R300_MC_DISP0R_INIT_LAT_MASK << R300_MC_DISP0R_INIT_LAT_SHIFT);
-                /* check crtc enables */
-                if (mode2)
-                        mc_init_misc_lat_timer |= (1 << R300_MC_DISP1R_INIT_LAT_SHIFT);
-                if (mode1)
-                        mc_init_misc_lat_timer |= (1 << R300_MC_DISP0R_INIT_LAT_SHIFT);
-                WREG32(R300_MC_INIT_MISC_LAT_TIMER, mc_init_misc_lat_timer);
-        }
-
-        /*
-         * determine is there is enough bw for current mode
-         */
-        mclk_ff.full = rfixed_const(rdev->clock.default_mclk);
-        temp_ff.full = rfixed_const(100);
-        mclk_ff.full = rfixed_div(mclk_ff, temp_ff);
-        sclk_ff.full = rfixed_const(rdev->clock.default_sclk);
-        sclk_ff.full = rfixed_div(sclk_ff, temp_ff);
-
-        temp = (rdev->mc.vram_width / 8) * (rdev->mc.vram_is_ddr ? 2 : 1);
-        temp_ff.full = rfixed_const(temp);
-        mem_bw.full = rfixed_mul(mclk_ff, temp_ff);
-
-        pix_clk.full = 0;
-        pix_clk2.full = 0;
-        peak_disp_bw.full = 0;
-        if (mode1) {
-                temp_ff.full = rfixed_const(1000);
-                pix_clk.full = rfixed_const(mode1->clock); /* convert to fixed point */
-                pix_clk.full = rfixed_div(pix_clk, temp_ff);
-                temp_ff.full = rfixed_const(pixel_bytes1);
-                peak_disp_bw.full += rfixed_mul(pix_clk, temp_ff);
-        }
-        if (mode2) {
-                temp_ff.full = rfixed_const(1000);
-                pix_clk2.full = rfixed_const(mode2->clock); /* convert to fixed point */
-                pix_clk2.full = rfixed_div(pix_clk2, temp_ff);
-                temp_ff.full = rfixed_const(pixel_bytes2);
-                peak_disp_bw.full += rfixed_mul(pix_clk2, temp_ff);
-        }
-
-        mem_bw.full = rfixed_mul(mem_bw, min_mem_eff);
-        if (peak_disp_bw.full >= mem_bw.full) {
-                DRM_ERROR("You may not have enough display bandwidth for current mode\n"
-                          "If you have flickering problem, try to lower resolution, refresh rate, or color depth\n");
-        }
-
-        /*  Get values from the EXT_MEM_CNTL register...converting its contents. */
-        temp = RREG32(RADEON_MEM_TIMING_CNTL);
-        if ((rdev->family == CHIP_RV100) || (rdev->flags & RADEON_IS_IGP)) { /* RV100, M6, IGPs */
-                mem_trcd = ((temp >> 2) & 0x3) + 1;
-                mem_trp  = ((temp & 0x3)) + 1;
-                mem_tras = ((temp & 0x70) >> 4) + 1;
-        } else if (rdev->family == CHIP_R300 ||
-                   rdev->family == CHIP_R350) { /* r300, r350 */
-                mem_trcd = (temp & 0x7) + 1;
-                mem_trp = ((temp >> 8) & 0x7) + 1;
-                mem_tras = ((temp >> 11) & 0xf) + 4;
-        } else if (rdev->family == CHIP_RV350 ||
-                   rdev->family <= CHIP_RV380) {
-                /* rv3x0 */
-                mem_trcd = (temp & 0x7) + 3;
-                mem_trp = ((temp >> 8) & 0x7) + 3;
-                mem_tras = ((temp >> 11) & 0xf) + 6;
-        } else if (rdev->family == CHIP_R420 ||
-                   rdev->family == CHIP_R423 ||
-                   rdev->family == CHIP_RV410) {
-                /* r4xx */
-                mem_trcd = (temp & 0xf) + 3;
-                if (mem_trcd > 15)
-                        mem_trcd = 15;
-                mem_trp = ((temp >> 8) & 0xf) + 3;
-                if (mem_trp > 15)
-                        mem_trp = 15;
-                mem_tras = ((temp >> 12) & 0x1f) + 6;
-                if (mem_tras > 31)
-                        mem_tras = 31;
-        } else { /* RV200, R200 */
-                mem_trcd = (temp & 0x7) + 1;
-                mem_trp = ((temp >> 8) & 0x7) + 1;
-                mem_tras = ((temp >> 12) & 0xf) + 4;
-        }
-        /* convert to FF */
-        trcd_ff.full = rfixed_const(mem_trcd);
-        trp_ff.full = rfixed_const(mem_trp);
-        tras_ff.full = rfixed_const(mem_tras);
-
-        /* Get values from the MEM_SDRAM_MODE_REG register...converting its */
-        temp = RREG32(RADEON_MEM_SDRAM_MODE_REG);
-        data = (temp & (7 << 20)) >> 20;
-        if ((rdev->family == CHIP_RV100) || rdev->flags & RADEON_IS_IGP) {
-                if (rdev->family == CHIP_RS480) /* don't think rs400 */
-                        tcas_ff = memtcas_rs480_ff[data];
-                else
-                        tcas_ff = memtcas_ff[data];
-        } else
-                tcas_ff = memtcas2_ff[data];
-
-        if (rdev->family == CHIP_RS400 ||
-            rdev->family == CHIP_RS480) {
-                /* extra cas latency stored in bits 23-25 0-4 clocks */
-                data = (temp >> 23) & 0x7;
-                if (data < 5)
-                        tcas_ff.full += rfixed_const(data);
-        }
-
-        if (ASIC_IS_R300(rdev) && !(rdev->flags & RADEON_IS_IGP)) {
-                /* on the R300, Tcas is included in Trbs.
-                 */
-                temp = RREG32(RADEON_MEM_CNTL);
-                data = (R300_MEM_NUM_CHANNELS_MASK & temp);
-                if (data == 1) {
-                        if (R300_MEM_USE_CD_CH_ONLY & temp) {
-                                temp = RREG32(R300_MC_IND_INDEX);
-                                temp &= ~R300_MC_IND_ADDR_MASK;
-                                temp |= R300_MC_READ_CNTL_CD_mcind;
-                                WREG32(R300_MC_IND_INDEX, temp);
-                                temp = RREG32(R300_MC_IND_DATA);
-                                data = (R300_MEM_RBS_POSITION_C_MASK & temp);
-                        } else {
-                                temp = RREG32(R300_MC_READ_CNTL_AB);
-                                data = (R300_MEM_RBS_POSITION_A_MASK & temp);
-                        }
-                } else {
-                        temp = RREG32(R300_MC_READ_CNTL_AB);
-                        data = (R300_MEM_RBS_POSITION_A_MASK & temp);
-                }
-                if (rdev->family == CHIP_RV410 ||
-                    rdev->family == CHIP_R420 ||
-                    rdev->family == CHIP_R423)
-                        trbs_ff = memtrbs_r4xx[data];
-                else
-                        trbs_ff = memtrbs[data];
-                tcas_ff.full += trbs_ff.full;
-        }
-
-        sclk_eff_ff.full = sclk_ff.full;
-
-        if (rdev->flags & RADEON_IS_AGP) {
-                fixed20_12 agpmode_ff;
-                agpmode_ff.full = rfixed_const(radeon_agpmode);
-                temp_ff.full = rfixed_const_666(16);
-                sclk_eff_ff.full -= rfixed_mul(agpmode_ff, temp_ff);
-        }
-        /* TODO PCIE lanes may affect this - agpmode == 16?? */
-
-        if (ASIC_IS_R300(rdev)) {
-                sclk_delay_ff.full = rfixed_const(250);
-        } else {
-                if ((rdev->family == CHIP_RV100) ||
-                    rdev->flags & RADEON_IS_IGP) {
-                        if (rdev->mc.vram_is_ddr)
-                                sclk_delay_ff.full = rfixed_const(41);
-                        else
-                                sclk_delay_ff.full = rfixed_const(33);
-                } else {
-                        if (rdev->mc.vram_width == 128)
-                                sclk_delay_ff.full = rfixed_const(57);
-                        else
-                                sclk_delay_ff.full = rfixed_const(41);
-                }
-        }
-
-        mc_latency_sclk.full = rfixed_div(sclk_delay_ff, sclk_eff_ff);
-
-        if (rdev->mc.vram_is_ddr) {
-                if (rdev->mc.vram_width == 32) {
-                        k1.full = rfixed_const(40);
-                        c  = 3;
-                } else {
-                        k1.full = rfixed_const(20);
-                        c  = 1;
-                }
-        } else {
-                k1.full = rfixed_const(40);
-                c  = 3;
-        }
-
-        temp_ff.full = rfixed_const(2);
-        mc_latency_mclk.full = rfixed_mul(trcd_ff, temp_ff);
-        temp_ff.full = rfixed_const(c);
-        mc_latency_mclk.full += rfixed_mul(tcas_ff, temp_ff);
-        temp_ff.full = rfixed_const(4);
-        mc_latency_mclk.full += rfixed_mul(tras_ff, temp_ff);
-        mc_latency_mclk.full += rfixed_mul(trp_ff, temp_ff);
-        mc_latency_mclk.full += k1.full;
-
-        mc_latency_mclk.full = rfixed_div(mc_latency_mclk, mclk_ff);
-        mc_latency_mclk.full += rfixed_div(temp_ff, sclk_eff_ff);
-
-        /*
-          HW cursor time assuming worst case of full size colour cursor.
-        */
-        temp_ff.full = rfixed_const((2 * (cur_size - (rdev->mc.vram_is_ddr + 1))));
-        temp_ff.full += trcd_ff.full;
-        if (temp_ff.full < tras_ff.full)
-                temp_ff.full = tras_ff.full;
-        cur_latency_mclk.full = rfixed_div(temp_ff, mclk_ff);
-
-        temp_ff.full = rfixed_const(cur_size);
-        cur_latency_sclk.full = rfixed_div(temp_ff, sclk_eff_ff);
-        /*
-          Find the total latency for the display data.
-        */
-        disp_latency_overhead.full = rfixed_const(80);
-        disp_latency_overhead.full = rfixed_div(disp_latency_overhead, sclk_ff);
-        mc_latency_mclk.full += disp_latency_overhead.full + cur_latency_mclk.full;
-        mc_latency_sclk.full += disp_latency_overhead.full + cur_latency_sclk.full;
-
-        if (mc_latency_mclk.full > mc_latency_sclk.full)
-                disp_latency.full = mc_latency_mclk.full;
-        else
-                disp_latency.full = mc_latency_sclk.full;
-
-        /* setup Max GRPH_STOP_REQ default value */
-        if (ASIC_IS_RV100(rdev))
-                max_stop_req = 0x5c;
-        else
-                max_stop_req = 0x7c;
-
-        if (mode1) {
-                /*  CRTC1
-                    Set GRPH_BUFFER_CNTL register using h/w defined optimal values.
-                    GRPH_STOP_REQ <= MIN[ 0x7C, (CRTC_H_DISP + 1) * (bit depth) / 0x10 ]
-                */
-                stop_req = mode1->hdisplay * pixel_bytes1 / 16;
-
-                if (stop_req > max_stop_req)
-                        stop_req = max_stop_req;
-
-                /*
-                  Find the drain rate of the display buffer.
-                */
-                temp_ff.full = rfixed_const((16/pixel_bytes1));
-                disp_drain_rate.full = rfixed_div(pix_clk, temp_ff);
-
-                /*
-                  Find the critical point of the display buffer.
-                */
-                crit_point_ff.full = rfixed_mul(disp_drain_rate, disp_latency);
-                crit_point_ff.full += rfixed_const_half(0);
-
-                critical_point = rfixed_trunc(crit_point_ff);
-
-                if (rdev->disp_priority == 2) {
-                        critical_point = 0;
-                }
-
-                /*
-                  The critical point should never be above max_stop_req-4.  Setting
-                  GRPH_CRITICAL_CNTL = 0 will thus force high priority all the time.
-                */
-                if (max_stop_req - critical_point < 4)
-                        critical_point = 0;
-
-                if (critical_point == 0 && mode2 && rdev->family == CHIP_R300) {
-                        /* some R300 cards have problem with this set to 0, when CRTC2 is enabled.*/
-                        critical_point = 0x10;
-                }
-
-                temp = RREG32(RADEON_GRPH_BUFFER_CNTL);
-                temp &= ~(RADEON_GRPH_STOP_REQ_MASK);
-                temp |= (stop_req << RADEON_GRPH_STOP_REQ_SHIFT);
-                temp &= ~(RADEON_GRPH_START_REQ_MASK);
-                if ((rdev->family == CHIP_R350) &&
-                    (stop_req > 0x15)) {
-                        stop_req -= 0x10;
-                }
-                temp |= (stop_req << RADEON_GRPH_START_REQ_SHIFT);
-                temp |= RADEON_GRPH_BUFFER_SIZE;
-                temp &= ~(RADEON_GRPH_CRITICAL_CNTL   |
-                          RADEON_GRPH_CRITICAL_AT_SOF |
-                          RADEON_GRPH_STOP_CNTL);
-                /*
-                  Write the result into the register.
-                */
-                WREG32(RADEON_GRPH_BUFFER_CNTL, ((temp & ~RADEON_GRPH_CRITICAL_POINT_MASK) |
-                                                       (critical_point << RADEON_GRPH_CRITICAL_POINT_SHIFT)));
-
-#if 0
-                if ((rdev->family == CHIP_RS400) ||
-                    (rdev->family == CHIP_RS480)) {
-                        /* attempt to program RS400 disp regs correctly ??? */
-                        temp = RREG32(RS400_DISP1_REG_CNTL);
-                        temp &= ~(RS400_DISP1_START_REQ_LEVEL_MASK |
-                                  RS400_DISP1_STOP_REQ_LEVEL_MASK);
-                        WREG32(RS400_DISP1_REQ_CNTL1, (temp |
-                                                       (critical_point << RS400_DISP1_START_REQ_LEVEL_SHIFT) |
-                                                       (critical_point << RS400_DISP1_STOP_REQ_LEVEL_SHIFT)));
-                        temp = RREG32(RS400_DMIF_MEM_CNTL1);
-                        temp &= ~(RS400_DISP1_CRITICAL_POINT_START_MASK |
-                                  RS400_DISP1_CRITICAL_POINT_STOP_MASK);
-                        WREG32(RS400_DMIF_MEM_CNTL1, (temp |
-                                                      (critical_point << RS400_DISP1_CRITICAL_POINT_START_SHIFT) |
-                                                      (critical_point << RS400_DISP1_CRITICAL_POINT_STOP_SHIFT)));
-                }
-#endif
-
-                DRM_DEBUG("GRPH_BUFFER_CNTL from to %x\n",
-                          /*      (unsigned int)info->SavedReg->grph_buffer_cntl, */
-                          (unsigned int)RREG32(RADEON_GRPH_BUFFER_CNTL));
-        }
-
-        if (mode2) {
-                u32 grph2_cntl;
-                stop_req = mode2->hdisplay * pixel_bytes2 / 16;
-
-                if (stop_req > max_stop_req)
-                        stop_req = max_stop_req;
-
-                /*
-                  Find the drain rate of the display buffer.
-                */
-                temp_ff.full = rfixed_const((16/pixel_bytes2));
-                disp_drain_rate2.full = rfixed_div(pix_clk2, temp_ff);
-
-                grph2_cntl = RREG32(RADEON_GRPH2_BUFFER_CNTL);
-                grph2_cntl &= ~(RADEON_GRPH_STOP_REQ_MASK);
-                grph2_cntl |= (stop_req << RADEON_GRPH_STOP_REQ_SHIFT);
-                grph2_cntl &= ~(RADEON_GRPH_START_REQ_MASK);
-                if ((rdev->family == CHIP_R350) &&
-                    (stop_req > 0x15)) {
-                        stop_req -= 0x10;
-                }
-                grph2_cntl |= (stop_req << RADEON_GRPH_START_REQ_SHIFT);
-                grph2_cntl |= RADEON_GRPH_BUFFER_SIZE;
-                grph2_cntl &= ~(RADEON_GRPH_CRITICAL_CNTL   |
-                          RADEON_GRPH_CRITICAL_AT_SOF |
-                          RADEON_GRPH_STOP_CNTL);
-
-                if ((rdev->family == CHIP_RS100) ||
-                    (rdev->family == CHIP_RS200))
-                        critical_point2 = 0;
-                else {
-                        temp = (rdev->mc.vram_width * rdev->mc.vram_is_ddr + 1)/128;
-                        temp_ff.full = rfixed_const(temp);
-                        temp_ff.full = rfixed_mul(mclk_ff, temp_ff);
-                        if (sclk_ff.full < temp_ff.full)
-                                temp_ff.full = sclk_ff.full;
-
-                        read_return_rate.full = temp_ff.full;
-
-                        if (mode1) {
-                                temp_ff.full = read_return_rate.full - disp_drain_rate.full;
-                                time_disp1_drop_priority.full = rfixed_div(crit_point_ff, temp_ff);
-                        } else {
-                                time_disp1_drop_priority.full = 0;
-                        }
-                        crit_point_ff.full = disp_latency.full + time_disp1_drop_priority.full + disp_latency.full;
-                        crit_point_ff.full = rfixed_mul(crit_point_ff, disp_drain_rate2);
-                        crit_point_ff.full += rfixed_const_half(0);
-
-                        critical_point2 = rfixed_trunc(crit_point_ff);
-
-                        if (rdev->disp_priority == 2) {
-                                critical_point2 = 0;
-                        }
-
-                        if (max_stop_req - critical_point2 < 4)
-                                critical_point2 = 0;
-
-                }
-
-                if (critical_point2 == 0 && rdev->family == CHIP_R300) {
-                        /* some R300 cards have problem with this set to 0 */
-                        critical_point2 = 0x10;
-                }
-
-                WREG32(RADEON_GRPH2_BUFFER_CNTL, ((grph2_cntl & ~RADEON_GRPH_CRITICAL_POINT_MASK) |
-                                                  (critical_point2 << RADEON_GRPH_CRITICAL_POINT_SHIFT)));
-
-                if ((rdev->family == CHIP_RS400) ||
-                    (rdev->family == CHIP_RS480)) {
-#if 0
-                        /* attempt to program RS400 disp2 regs correctly ??? */
-                        temp = RREG32(RS400_DISP2_REQ_CNTL1);
-                        temp &= ~(RS400_DISP2_START_REQ_LEVEL_MASK |
-                                  RS400_DISP2_STOP_REQ_LEVEL_MASK);
-                        WREG32(RS400_DISP2_REQ_CNTL1, (temp |
-                                                       (critical_point2 << RS400_DISP1_START_REQ_LEVEL_SHIFT) |
-                                                       (critical_point2 << RS400_DISP1_STOP_REQ_LEVEL_SHIFT)));
-                        temp = RREG32(RS400_DISP2_REQ_CNTL2);
-                        temp &= ~(RS400_DISP2_CRITICAL_POINT_START_MASK |
-                                  RS400_DISP2_CRITICAL_POINT_STOP_MASK);
-                        WREG32(RS400_DISP2_REQ_CNTL2, (temp |
-                                                       (critical_point2 << RS400_DISP2_CRITICAL_POINT_START_SHIFT) |
-                                                       (critical_point2 << RS400_DISP2_CRITICAL_POINT_STOP_SHIFT)));
-#endif
-                        WREG32(RS400_DISP2_REQ_CNTL1, 0x105DC1CC);
-                        WREG32(RS400_DISP2_REQ_CNTL2, 0x2749D000);
-                        WREG32(RS400_DMIF_MEM_CNTL1,  0x29CA71DC);
-                        WREG32(RS400_DISP1_REQ_CNTL1, 0x28FBC3AC);
-                }
-
-                DRM_DEBUG("GRPH2_BUFFER_CNTL from to %x\n",
-                          (unsigned int)RREG32(RADEON_GRPH2_BUFFER_CNTL));
-        }
-}
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
index 2c2f42de1d4c..34d0f58eb944 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
@@ -30,170 +30,6 @@
 #include "atom.h"
 
 
-static void radeon_legacy_rmx_mode_set(struct drm_encoder *encoder,
-                                       struct drm_display_mode *mode,
-                                       struct drm_display_mode *adjusted_mode)
-{
-        struct drm_device *dev = encoder->dev;
-        struct radeon_device *rdev = dev->dev_private;
-        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
-        int    xres = mode->hdisplay;
-        int    yres = mode->vdisplay;
-        bool   hscale = true, vscale = true;
-        int    hsync_wid;
-        int    vsync_wid;
-        int    hsync_start;
-        uint32_t scale, inc;
-        uint32_t fp_horz_stretch, fp_vert_stretch, crtc_more_cntl, fp_horz_vert_active;
-        uint32_t fp_h_sync_strt_wid, fp_v_sync_strt_wid, fp_crtc_h_total_disp, fp_crtc_v_total_disp;
-        struct radeon_native_mode *native_mode = &radeon_encoder->native_mode;
-
-        DRM_DEBUG("\n");
-
-        fp_vert_stretch = RREG32(RADEON_FP_VERT_STRETCH) &
-                (RADEON_VERT_STRETCH_RESERVED |
-                 RADEON_VERT_AUTO_RATIO_INC);
-        fp_horz_stretch = RREG32(RADEON_FP_HORZ_STRETCH) &
-                (RADEON_HORZ_FP_LOOP_STRETCH |
-                 RADEON_HORZ_AUTO_RATIO_INC);
-
-        crtc_more_cntl = 0;
-        if ((rdev->family == CHIP_RS100) ||
-            (rdev->family == CHIP_RS200)) {
-                /* This is to workaround the asic bug for RMX, some versions
-                   of BIOS dosen't have this register initialized correctly. */
-                crtc_more_cntl |= RADEON_CRTC_H_CUTOFF_ACTIVE_EN;
-        }
-
-
-        fp_crtc_h_total_disp = ((((mode->crtc_htotal / 8) - 1) & 0x3ff)
-                                | ((((mode->crtc_hdisplay / 8) - 1) & 0x1ff) << 16));
-
-        hsync_wid = (mode->crtc_hsync_end - mode->crtc_hsync_start) / 8;
-        if (!hsync_wid)
-                hsync_wid = 1;
-        hsync_start = mode->crtc_hsync_start - 8;
-
-        fp_h_sync_strt_wid = ((hsync_start & 0x1fff)
-                              | ((hsync_wid & 0x3f) << 16)
-                              | ((mode->flags & DRM_MODE_FLAG_NHSYNC)
-                                 ? RADEON_CRTC_H_SYNC_POL
-                                 : 0));
-
-        fp_crtc_v_total_disp = (((mode->crtc_vtotal - 1) & 0xffff)
-                                | ((mode->crtc_vdisplay - 1) << 16));
-
-        vsync_wid = mode->crtc_vsync_end - mode->crtc_vsync_start;
-        if (!vsync_wid)
-                vsync_wid = 1;
-
-        fp_v_sync_strt_wid = (((mode->crtc_vsync_start - 1) & 0xfff)
-                              | ((vsync_wid & 0x1f) << 16)
-                              | ((mode->flags & DRM_MODE_FLAG_NVSYNC)
-                                 ? RADEON_CRTC_V_SYNC_POL
-                                 : 0));
-
-        fp_horz_vert_active = 0;
-
-        if (native_mode->panel_xres == 0 ||
-            native_mode->panel_yres == 0) {
-                hscale = false;
-                vscale = false;
-        } else {
-                if (xres > native_mode->panel_xres)
-                        xres = native_mode->panel_xres;
-                if (yres > native_mode->panel_yres)
-                        yres = native_mode->panel_yres;
-
-                if (xres == native_mode->panel_xres)
-                        hscale = false;
-                if (yres == native_mode->panel_yres)
-                        vscale = false;
-        }
-
-        if (radeon_encoder->flags & RADEON_USE_RMX) {
-                if (radeon_encoder->rmx_type != RMX_CENTER) {
-                        if (!hscale)
-                                fp_horz_stretch |= ((xres/8-1) << 16);
-                        else {
-                                inc = (fp_horz_stretch & RADEON_HORZ_AUTO_RATIO_INC) ? 1 : 0;
-                                scale = ((xres + inc) * RADEON_HORZ_STRETCH_RATIO_MAX)
-                                        / native_mode->panel_xres + 1;
-                                fp_horz_stretch |= (((scale) & RADEON_HORZ_STRETCH_RATIO_MASK) |
-                                                    RADEON_HORZ_STRETCH_BLEND |
-                                                    RADEON_HORZ_STRETCH_ENABLE |
-                                                    ((native_mode->panel_xres/8-1) << 16));
-                        }
-
-                        if (!vscale)
-                                fp_vert_stretch |= ((yres-1) << 12);
-                        else {
-                                inc = (fp_vert_stretch & RADEON_VERT_AUTO_RATIO_INC) ? 1 : 0;
-                                scale = ((yres + inc) * RADEON_VERT_STRETCH_RATIO_MAX)
-                                        / native_mode->panel_yres + 1;
-                                fp_vert_stretch |= (((scale) & RADEON_VERT_STRETCH_RATIO_MASK) |
-                                                    RADEON_VERT_STRETCH_ENABLE |
-                                                    RADEON_VERT_STRETCH_BLEND |
-                                                    ((native_mode->panel_yres-1) << 12));
-                        }
-                } else if (radeon_encoder->rmx_type == RMX_CENTER) {
-                        int    blank_width;
-
-                        fp_horz_stretch |= ((xres/8-1) << 16);
-                        fp_vert_stretch |= ((yres-1) << 12);
-
-                        crtc_more_cntl |= (RADEON_CRTC_AUTO_HORZ_CENTER_EN |
-                                           RADEON_CRTC_AUTO_VERT_CENTER_EN);
-
-                        blank_width = (mode->crtc_hblank_end - mode->crtc_hblank_start) / 8;
-                        if (blank_width > 110)
-                                blank_width = 110;
-
-                        fp_crtc_h_total_disp = (((blank_width) & 0x3ff)
-                                                | ((((mode->crtc_hdisplay / 8) - 1) & 0x1ff) << 16));
-
-                        hsync_wid = (mode->crtc_hsync_end - mode->crtc_hsync_start) / 8;
-                        if (!hsync_wid)
-                                hsync_wid = 1;
-
-                        fp_h_sync_strt_wid = ((((mode->crtc_hsync_start - mode->crtc_hblank_start) / 8) & 0x1fff)
-                                              | ((hsync_wid & 0x3f) << 16)
-                                              | ((mode->flags & DRM_MODE_FLAG_NHSYNC)
-                                                 ? RADEON_CRTC_H_SYNC_POL
-                                                 : 0));
-
-                        fp_crtc_v_total_disp = (((mode->crtc_vblank_end - mode->crtc_vblank_start) & 0xffff)
-                                                | ((mode->crtc_vdisplay - 1) << 16));
-
-                        vsync_wid = mode->crtc_vsync_end - mode->crtc_vsync_start;
-                        if (!vsync_wid)
-                                vsync_wid = 1;
-
-                        fp_v_sync_strt_wid = ((((mode->crtc_vsync_start - mode->crtc_vblank_start) & 0xfff)
-                                               | ((vsync_wid & 0x1f) << 16)
-                                               | ((mode->flags & DRM_MODE_FLAG_NVSYNC)
-                                                  ? RADEON_CRTC_V_SYNC_POL
-                                                  : 0)));
-
-                        fp_horz_vert_active = (((native_mode->panel_yres) & 0xfff) |
-                                               (((native_mode->panel_xres / 8) & 0x1ff) << 16));
-                }
-        } else {
-                fp_horz_stretch |= ((xres/8-1) << 16);
-                fp_vert_stretch |= ((yres-1) << 12);
-        }
-
-        WREG32(RADEON_FP_HORZ_STRETCH,      fp_horz_stretch);
-        WREG32(RADEON_FP_VERT_STRETCH,      fp_vert_stretch);
-        WREG32(RADEON_CRTC_MORE_CNTL,       crtc_more_cntl);
-        WREG32(RADEON_FP_HORZ_VERT_ACTIVE,  fp_horz_vert_active);
-        WREG32(RADEON_FP_H_SYNC_STRT_WID,   fp_h_sync_strt_wid);
-        WREG32(RADEON_FP_V_SYNC_STRT_WID,   fp_v_sync_strt_wid);
-        WREG32(RADEON_FP_CRTC_H_TOTAL_DISP, fp_crtc_h_total_disp);
-        WREG32(RADEON_FP_CRTC_V_TOTAL_DISP, fp_crtc_v_total_disp);
-
-}
-
 static void radeon_legacy_lvds_dpms(struct drm_encoder *encoder, int mode)
 {
         struct drm_device *dev = encoder->dev;
@@ -287,9 +123,6 @@ static void radeon_legacy_lvds_mode_set(struct drm_encoder *encoder,
 
         DRM_DEBUG("\n");
 
-        if (radeon_crtc->crtc_id == 0)
-                radeon_legacy_rmx_mode_set(encoder, mode, adjusted_mode);
-
         lvds_pll_cntl = RREG32(RADEON_LVDS_PLL_CNTL);
         lvds_pll_cntl &= ~RADEON_LVDS_PLL_EN;
 
@@ -318,7 +151,7 @@ static void radeon_legacy_lvds_mode_set(struct drm_encoder *encoder,
 
         if (radeon_crtc->crtc_id == 0) {
                 if (ASIC_IS_R300(rdev)) {
-                        if (radeon_encoder->flags & RADEON_USE_RMX)
+                        if (radeon_encoder->rmx_type != RMX_OFF)
                                 lvds_pll_cntl |= R300_LVDS_SRC_SEL_RMX;
                 } else
                         lvds_gen_cntl &= ~RADEON_LVDS_SEL_CRTC2;
@@ -350,8 +183,6 @@ static bool radeon_legacy_lvds_mode_fixup(struct drm_encoder *encoder,
 
         drm_mode_set_crtcinfo(adjusted_mode, 0);
 
-        radeon_encoder->flags &= ~RADEON_USE_RMX;
-
         if (radeon_encoder->rmx_type != RMX_OFF)
                 radeon_rmx_mode_fixup(encoder, mode, adjusted_mode);
 
@@ -455,9 +286,6 @@ static void radeon_legacy_primary_dac_mode_set(struct drm_encoder *encoder,
 
         DRM_DEBUG("\n");
 
-        if (radeon_crtc->crtc_id == 0)
-                radeon_legacy_rmx_mode_set(encoder, mode, adjusted_mode);
-
         if (radeon_crtc->crtc_id == 0) {
                 if (rdev->family == CHIP_R200 || ASIC_IS_R300(rdev)) {
                         disp_output_cntl = RREG32(RADEON_DISP_OUTPUT_CNTL) &
@@ -653,9 +481,6 @@ static void radeon_legacy_tmds_int_mode_set(struct drm_encoder *encoder,
 
         DRM_DEBUG("\n");
 
-        if (radeon_crtc->crtc_id == 0)
-                radeon_legacy_rmx_mode_set(encoder, mode, adjusted_mode);
-
         tmp = tmds_pll_cntl = RREG32(RADEON_TMDS_PLL_CNTL);
         tmp &= 0xfffff;
         if (rdev->family == CHIP_RV280) {
@@ -711,7 +536,7 @@ static void radeon_legacy_tmds_int_mode_set(struct drm_encoder *encoder,
     if (radeon_crtc->crtc_id == 0) {
             if (ASIC_IS_R300(rdev) || rdev->family == CHIP_R200) {
                     fp_gen_cntl &= ~R200_FP_SOURCE_SEL_MASK;
-                    if (radeon_encoder->flags & RADEON_USE_RMX)
+                    if (radeon_encoder->rmx_type != RMX_OFF)
                             fp_gen_cntl |= R200_FP_SOURCE_SEL_RMX;
                     else
                             fp_gen_cntl |= R200_FP_SOURCE_SEL_CRTC1;
@@ -820,9 +645,6 @@ static void radeon_legacy_tmds_ext_mode_set(struct drm_encoder *encoder,
 
         DRM_DEBUG("\n");
 
-        if (radeon_crtc->crtc_id == 0)
-                radeon_legacy_rmx_mode_set(encoder, mode, adjusted_mode);
-
         if (rdev->is_atom_bios) {
                 radeon_encoder->pixel_clock = adjusted_mode->clock;
                 atombios_external_tmds_setup(encoder, ATOM_ENABLE);
@@ -856,7 +678,7 @@ static void radeon_legacy_tmds_ext_mode_set(struct drm_encoder *encoder,
         if (radeon_crtc->crtc_id == 0) {
                 if ((rdev->family == CHIP_R200) || ASIC_IS_R300(rdev)) {
                         fp2_gen_cntl &= ~R200_FP2_SOURCE_SEL_MASK;
-                        if (radeon_encoder->flags & RADEON_USE_RMX)
+                        if (radeon_encoder->rmx_type != RMX_OFF)
                                 fp2_gen_cntl |= R200_FP2_SOURCE_SEL_RMX;
                         else
                                 fp2_gen_cntl |= R200_FP2_SOURCE_SEL_CRTC1;
@@ -1014,9 +836,6 @@ static void radeon_legacy_tv_dac_mode_set(struct drm_encoder *encoder,
 
         DRM_DEBUG("\n");
 
-        if (radeon_crtc->crtc_id == 0)
-                radeon_legacy_rmx_mode_set(encoder, mode, adjusted_mode);
-
         if (rdev->family != CHIP_R200) {
                 tv_dac_cntl = RREG32(RADEON_TV_DAC_CNTL);
                 if (rdev->family == CHIP_R420 ||
@@ -1243,6 +1062,7 @@ radeon_add_legacy_encoder(struct drm_device *dev, uint32_t encoder_id, uint32_t
 
         radeon_encoder->encoder_id = encoder_id;
         radeon_encoder->devices = supported_device;
+        radeon_encoder->rmx_type = RMX_OFF;
 
         switch (radeon_encoder->encoder_id) {
         case ENCODER_OBJECT_ID_INTERNAL_LVDS:
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 9173b687462b..3b09a1f2d8f9 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -36,6 +36,9 @@
 #include <linux/i2c.h>
 #include <linux/i2c-id.h>
 #include <linux/i2c-algo-bit.h>
+#include "radeon_fixed.h"
+
+struct radeon_device;
 
 #define to_radeon_crtc(x) container_of(x, struct radeon_crtc, base)
 #define to_radeon_connector(x) container_of(x, struct radeon_connector, base)
@@ -124,6 +127,7 @@ struct radeon_tmds_pll {
 #define RADEON_PLL_PREFER_LOW_POST_DIV  (1 << 8)
 #define RADEON_PLL_PREFER_HIGH_POST_DIV (1 << 9)
 #define RADEON_PLL_USE_FRAC_FB_DIV      (1 << 10)
+#define RADEON_PLL_PREFER_CLOSEST_LOWER (1 << 11)
 
 struct radeon_pll {
         uint16_t reference_freq;
@@ -170,6 +174,18 @@ struct radeon_mode_info {
         struct atom_context *atom_context;
         enum radeon_connector_table connector_table;
         bool mode_config_initialized;
+        struct radeon_crtc *crtcs[2];
+};
+
+struct radeon_native_mode {
+        /* preferred mode */
+        uint32_t panel_xres, panel_yres;
+        uint32_t hoverplus, hsync_width;
+        uint32_t hblank;
+        uint32_t voverplus, vsync_width;
+        uint32_t vblank;
+        uint32_t dotclock;
+        uint32_t flags;
 };
 
 struct radeon_crtc {
@@ -185,19 +201,13 @@ struct radeon_crtc {
         uint64_t cursor_addr;
         int cursor_width;
         int cursor_height;
-};
-
-#define RADEON_USE_RMX 1
-
-struct radeon_native_mode {
-        /* preferred mode */
-        uint32_t panel_xres, panel_yres;
-        uint32_t hoverplus, hsync_width;
-        uint32_t hblank;
-        uint32_t voverplus, vsync_width;
-        uint32_t vblank;
-        uint32_t dotclock;
-        uint32_t flags;
+        uint32_t legacy_display_base_addr;
+        uint32_t legacy_cursor_offset;
+        enum radeon_rmx_type rmx_type;
+        uint32_t devices;
+        fixed20_12 vsc;
+        fixed20_12 hsc;
+        struct radeon_native_mode native_mode;
 };
 
 struct radeon_encoder_primary_dac {
@@ -383,16 +393,9 @@ void radeon_enc_destroy(struct drm_encoder *encoder);
 void radeon_copy_fb(struct drm_device *dev, struct drm_gem_object *dst_obj);
 void radeon_combios_asic_init(struct drm_device *dev);
 extern int radeon_static_clocks_init(struct drm_device *dev);
-void radeon_init_disp_bw_legacy(struct drm_device *dev,
-                                struct drm_display_mode *mode1,
-                                uint32_t pixel_bytes1,
-                                struct drm_display_mode *mode2,
-                                uint32_t pixel_bytes2);
-void radeon_init_disp_bw_avivo(struct drm_device *dev,
-                               struct drm_display_mode *mode1,
-                               uint32_t pixel_bytes1,
-                               struct drm_display_mode *mode2,
-                               uint32_t pixel_bytes2);
-void radeon_init_disp_bandwidth(struct drm_device *dev);
+bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
+                                        struct drm_display_mode *mode,
+                                        struct drm_display_mode *adjusted_mode);
+void atom_rv515_force_tv_scaler(struct radeon_device *rdev);
 
 #endif
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
index 983e8df5e000..e98cae3bf4a6 100644
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -44,6 +44,9 @@ struct radeon_object {
         uint64_t                        gpu_addr;
         void                            *kptr;
         bool                            is_iomem;
+        uint32_t                        tiling_flags;
+        uint32_t                        pitch;
+        int                             surface_reg;
 };
 
 int radeon_ttm_init(struct radeon_device *rdev);
@@ -70,6 +73,7 @@ static void radeon_ttm_object_object_destroy(struct ttm_buffer_object *tobj)
 
         robj = container_of(tobj, struct radeon_object, tobj);
         list_del_init(&robj->list);
+        radeon_object_clear_surface_reg(robj);
         kfree(robj);
 }
 
@@ -99,16 +103,16 @@ static inline uint32_t radeon_object_flags_from_domain(uint32_t domain)
 {
         uint32_t flags = 0;
         if (domain & RADEON_GEM_DOMAIN_VRAM) {
-                flags |= TTM_PL_FLAG_VRAM;
+                flags |= TTM_PL_FLAG_VRAM | TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED;
         }
         if (domain & RADEON_GEM_DOMAIN_GTT) {
-                flags |= TTM_PL_FLAG_TT;
+                flags |= TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING;
         }
         if (domain & RADEON_GEM_DOMAIN_CPU) {
-                flags |= TTM_PL_FLAG_SYSTEM;
+                flags |= TTM_PL_FLAG_SYSTEM | TTM_PL_MASK_CACHING;
         }
         if (!flags) {
-                flags |= TTM_PL_FLAG_SYSTEM;
+                flags |= TTM_PL_FLAG_SYSTEM | TTM_PL_MASK_CACHING;
         }
         return flags;
 }
@@ -141,6 +145,7 @@ int radeon_object_create(struct radeon_device *rdev,
         }
         robj->rdev = rdev;
         robj->gobj = gobj;
+        robj->surface_reg = -1;
         INIT_LIST_HEAD(&robj->list);
 
         flags = radeon_object_flags_from_domain(domain);
@@ -223,7 +228,6 @@ int radeon_object_pin(struct radeon_object *robj, uint32_t domain,
 {
         uint32_t flags;
         uint32_t tmp;
-        void *fbptr;
         int r;
 
         flags = radeon_object_flags_from_domain(domain);
@@ -242,10 +246,6 @@ int radeon_object_pin(struct radeon_object *robj, uint32_t domain,
                 DRM_ERROR("radeon: failed to reserve object for pinning it.\n");
                 return r;
         }
-        if (robj->rdev->fbdev_robj == robj) {
-                mutex_lock(&robj->rdev->fbdev_info->lock);
-                radeon_object_kunmap(robj);
-        }
         tmp = robj->tobj.mem.placement;
         ttm_flag_masked(&tmp, flags, TTM_PL_MASK_MEM);
         robj->tobj.proposed_placement = tmp | TTM_PL_FLAG_NO_EVICT | TTM_PL_MASK_CACHING;
@@ -261,23 +261,12 @@ int radeon_object_pin(struct radeon_object *robj, uint32_t domain,
                 DRM_ERROR("radeon: failed to pin object.\n");
         }
         radeon_object_unreserve(robj);
-        if (robj->rdev->fbdev_robj == robj) {
-                if (!r) {
-                        r = radeon_object_kmap(robj, &fbptr);
-                }
-                if (!r) {
-                        robj->rdev->fbdev_info->screen_base = fbptr;
-                        robj->rdev->fbdev_info->fix.smem_start = (unsigned long)fbptr;
-                }
-                mutex_unlock(&robj->rdev->fbdev_info->lock);
-        }
         return r;
 }
 
 void radeon_object_unpin(struct radeon_object *robj)
 {
         uint32_t flags;
-        void *fbptr;
         int r;
 
         spin_lock(&robj->tobj.lock);
@@ -297,10 +286,6 @@ void radeon_object_unpin(struct radeon_object *robj)
                 DRM_ERROR("radeon: failed to reserve object for unpinning it.\n");
                 return;
         }
-        if (robj->rdev->fbdev_robj == robj) {
-                mutex_lock(&robj->rdev->fbdev_info->lock);
-                radeon_object_kunmap(robj);
-        }
         flags = robj->tobj.mem.placement;
         robj->tobj.proposed_placement = flags & ~TTM_PL_FLAG_NO_EVICT;
         r = ttm_buffer_object_validate(&robj->tobj,
@@ -310,16 +295,6 @@ void radeon_object_unpin(struct radeon_object *robj)
                 DRM_ERROR("radeon: failed to unpin buffer.\n");
         }
         radeon_object_unreserve(robj);
-        if (robj->rdev->fbdev_robj == robj) {
-                if (!r) {
-                        r = radeon_object_kmap(robj, &fbptr);
-                }
-                if (!r) {
-                        robj->rdev->fbdev_info->screen_base = fbptr;
-                        robj->rdev->fbdev_info->fix.smem_start = (unsigned long)fbptr;
-                }
-                mutex_unlock(&robj->rdev->fbdev_info->lock);
-        }
 }
 
 int radeon_object_wait(struct radeon_object *robj)
@@ -334,7 +309,7 @@ int radeon_object_wait(struct radeon_object *robj)
         }
         spin_lock(&robj->tobj.lock);
         if (robj->tobj.sync_obj) {
-                r = ttm_bo_wait(&robj->tobj, true, false, false);
+                r = ttm_bo_wait(&robj->tobj, true, true, false);
         }
         spin_unlock(&robj->tobj.lock);
         radeon_object_unreserve(robj);
@@ -433,7 +408,6 @@ int radeon_object_list_validate(struct list_head *head, void *fence)
         struct radeon_object *robj;
         struct radeon_fence *old_fence = NULL;
         struct list_head *i;
-        uint32_t flags;
         int r;
 
         r = radeon_object_list_reserve(head);
@@ -444,27 +418,25 @@ int radeon_object_list_validate(struct list_head *head, void *fence)
         list_for_each(i, head) {
                 lobj = list_entry(i, struct radeon_object_list, list);
                 robj = lobj->robj;
-                if (lobj->wdomain) {
-                        flags = radeon_object_flags_from_domain(lobj->wdomain);
-                        flags |= TTM_PL_FLAG_TT;
-                } else {
-                        flags = radeon_object_flags_from_domain(lobj->rdomain);
-                        flags |= TTM_PL_FLAG_TT;
-                        flags |= TTM_PL_FLAG_VRAM;
-                }
                 if (!robj->pin_count) {
-                        robj->tobj.proposed_placement = flags | TTM_PL_MASK_CACHING;
+                        if (lobj->wdomain) {
+                                robj->tobj.proposed_placement =
+                                        radeon_object_flags_from_domain(lobj->wdomain);
+                        } else {
+                                robj->tobj.proposed_placement =
+                                        radeon_object_flags_from_domain(lobj->rdomain);
+                        }
                         r = ttm_buffer_object_validate(&robj->tobj,
                                                        robj->tobj.proposed_placement,
                                                        true, false);
                         if (unlikely(r)) {
-                                radeon_object_list_unreserve(head);
                                 DRM_ERROR("radeon: failed to validate.\n");
                                 return r;
                         }
                         radeon_object_gpu_addr(robj);
                 }
                 lobj->gpu_offset = robj->gpu_addr;
+                lobj->tiling_flags = robj->tiling_flags;
                 if (fence) {
                         old_fence = (struct radeon_fence *)robj->tobj.sync_obj;
                         robj->tobj.sync_obj = radeon_fence_ref(fence);
@@ -509,3 +481,127 @@ unsigned long radeon_object_size(struct radeon_object *robj)
 {
         return robj->tobj.num_pages << PAGE_SHIFT;
 }
+
+int radeon_object_get_surface_reg(struct radeon_object *robj)
+{
+        struct radeon_device *rdev = robj->rdev;
+        struct radeon_surface_reg *reg;
+        struct radeon_object *old_object;
+        int steal;
+        int i;
+
+        if (!robj->tiling_flags)
+                return 0;
+
+        if (robj->surface_reg >= 0) {
+                reg = &rdev->surface_regs[robj->surface_reg];
+                i = robj->surface_reg;
+                goto out;
+        }
+
+        steal = -1;
+        for (i = 0; i < RADEON_GEM_MAX_SURFACES; i++) {
+
+                reg = &rdev->surface_regs[i];
+                if (!reg->robj)
+                        break;
+
+                old_object = reg->robj;
+                if (old_object->pin_count == 0)
+                        steal = i;
+        }
+
+        /* if we are all out */
+        if (i == RADEON_GEM_MAX_SURFACES) {
+                if (steal == -1)
+                        return -ENOMEM;
+                /* find someone with a surface reg and nuke their BO */
+                reg = &rdev->surface_regs[steal];
+                old_object = reg->robj;
+                /* blow away the mapping */
+                DRM_DEBUG("stealing surface reg %d from %p\n", steal, old_object);
+                ttm_bo_unmap_virtual(&old_object->tobj);
+                old_object->surface_reg = -1;
+                i = steal;
+        }
+
+        robj->surface_reg = i;
+        reg->robj = robj;
+
+out:
+        radeon_set_surface_reg(rdev, i, robj->tiling_flags, robj->pitch,
+                               robj->tobj.mem.mm_node->start << PAGE_SHIFT,
+                               robj->tobj.num_pages << PAGE_SHIFT);
+        return 0;
+}
+
+void radeon_object_clear_surface_reg(struct radeon_object *robj)
+{
+        struct radeon_device *rdev = robj->rdev;
+        struct radeon_surface_reg *reg;
+
+        if (robj->surface_reg == -1)
+                return;
+
+        reg = &rdev->surface_regs[robj->surface_reg];
+        radeon_clear_surface_reg(rdev, robj->surface_reg);
+
+        reg->robj = NULL;
+        robj->surface_reg = -1;
+}
+
+void radeon_object_set_tiling_flags(struct radeon_object *robj,
+                                    uint32_t tiling_flags, uint32_t pitch)
+{
+        robj->tiling_flags = tiling_flags;
+        robj->pitch = pitch;
+}
+
+void radeon_object_get_tiling_flags(struct radeon_object *robj,
+                                    uint32_t *tiling_flags,
+                                    uint32_t *pitch)
+{
+        if (tiling_flags)
+                *tiling_flags = robj->tiling_flags;
+        if (pitch)
+                *pitch = robj->pitch;
+}
+
+int radeon_object_check_tiling(struct radeon_object *robj, bool has_moved,
+                               bool force_drop)
+{
+        if (!(robj->tiling_flags & RADEON_TILING_SURFACE))
+                return 0;
+
+        if (force_drop) {
+                radeon_object_clear_surface_reg(robj);
+                return 0;
+        }
+
+        if (robj->tobj.mem.mem_type != TTM_PL_VRAM) {
+                if (!has_moved)
+                        return 0;
+
+                if (robj->surface_reg >= 0)
+                        radeon_object_clear_surface_reg(robj);
+                return 0;
+        }
+
+        if ((robj->surface_reg >= 0) && !has_moved)
+                return 0;
+
+        return radeon_object_get_surface_reg(robj);
+}
+
+void radeon_bo_move_notify(struct ttm_buffer_object *bo,
+                          struct ttm_mem_reg *mem)
+{
+        struct radeon_object *robj = container_of(bo, struct radeon_object, tobj);
+        radeon_object_check_tiling(robj, 0, 1);
+}
+
+void radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo)
+{
+        struct radeon_object *robj = container_of(bo, struct radeon_object, tobj);
+        radeon_object_check_tiling(robj, 0, 0);
+}
diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c
index a853261d1881..60d159308b88 100644
--- a/drivers/gpu/drm/radeon/radeon_ring.c
+++ b/drivers/gpu/drm/radeon/radeon_ring.c
@@ -126,32 +126,19 @@ static void radeon_ib_align(struct radeon_device *rdev, struct radeon_ib *ib)
         }
 }
 
-static void radeon_ib_cpu_flush(struct radeon_device *rdev,
-                                struct radeon_ib *ib)
-{
-        unsigned long tmp;
-        unsigned i;
-
-        /* To force CPU cache flush ugly but seems reliable */
-        for (i = 0; i < ib->length_dw; i += (rdev->cp.align_mask + 1)) {
-                tmp = readl(&ib->ptr[i]);
-        }
-}
-
 int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib)
 {
         int r = 0;
 
         mutex_lock(&rdev->ib_pool.mutex);
         radeon_ib_align(rdev, ib);
-        radeon_ib_cpu_flush(rdev, ib);
         if (!ib->length_dw || !rdev->cp.ready) {
                 /* TODO: Nothings in the ib we should report. */
                 mutex_unlock(&rdev->ib_pool.mutex);
                 DRM_ERROR("radeon: couldn't schedule IB(%lu).\n", ib->idx);
                 return -EINVAL;
         }
-        /* 64 dwords should be enought for fence too */
+        /* 64 dwords should be enough for fence too */
         r = radeon_ring_lock(rdev, 64);
         if (r) {
                 DRM_ERROR("radeon: scheduling IB failled (%d).\n", r);
diff --git a/drivers/gpu/drm/radeon/radeon_share.h b/drivers/gpu/drm/radeon/radeon_share.h
new file mode 100644
index 000000000000..63a773578f17
--- /dev/null
+++ b/drivers/gpu/drm/radeon/radeon_share.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2008 Advanced Micro Devices, Inc.
+ * Copyright 2008 Red Hat Inc.
+ * Copyright 2009 Jerome Glisse.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Dave Airlie
+ *          Alex Deucher
+ *          Jerome Glisse
+ */
+#ifndef __RADEON_SHARE_H__
+#define __RADEON_SHARE_H__
+
+void r100_vram_init_sizes(struct radeon_device *rdev);
+
+void rs690_line_buffer_adjust(struct radeon_device *rdev,
+                              struct drm_display_mode *mode1,
+                              struct drm_display_mode *mode2);
+
+void rv515_bandwidth_avivo_update(struct radeon_device *rdev);
+
+#endif
diff --git a/drivers/gpu/drm/radeon/radeon_test.c b/drivers/gpu/drm/radeon/radeon_test.c
new file mode 100644
index 000000000000..03c33cf4e14c
--- /dev/null
+++ b/drivers/gpu/drm/radeon/radeon_test.c
@@ -0,0 +1,209 @@
+/*
+ * Copyright 2009 VMware, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Michel Dänzer
+ */
+#include <drm/drmP.h>
+#include <drm/radeon_drm.h>
+#include "radeon_reg.h"
+#include "radeon.h"
+
+
+/* Test BO GTT->VRAM and VRAM->GTT GPU copies across the whole GTT aperture */
+void radeon_test_moves(struct radeon_device *rdev)
+{
+        struct radeon_object *vram_obj = NULL;
+        struct radeon_object **gtt_obj = NULL;
+        struct radeon_fence *fence = NULL;
+        uint64_t gtt_addr, vram_addr;
+        unsigned i, n, size;
+        int r;
+
+        size = 1024 * 1024;
+
+        /* Number of tests =
+         * (Total GTT - IB pool - writeback page - ring buffer) / test size
+         */
+        n = (rdev->mc.gtt_size - RADEON_IB_POOL_SIZE*64*1024 - 4096 -
+             rdev->cp.ring_size) / size;
+
+        gtt_obj = kzalloc(n * sizeof(*gtt_obj), GFP_KERNEL);
+        if (!gtt_obj) {
+                DRM_ERROR("Failed to allocate %d pointers\n", n);
+                r = 1;
+                goto out_cleanup;
+        }
+
+        r = radeon_object_create(rdev, NULL, size, true, RADEON_GEM_DOMAIN_VRAM,
+                                 false, &vram_obj);
+        if (r) {
+                DRM_ERROR("Failed to create VRAM object\n");
+                goto out_cleanup;
+        }
+
+        r = radeon_object_pin(vram_obj, RADEON_GEM_DOMAIN_VRAM, &vram_addr);
+        if (r) {
+                DRM_ERROR("Failed to pin VRAM object\n");
+                goto out_cleanup;
+        }
+
+        for (i = 0; i < n; i++) {
+                void *gtt_map, *vram_map;
+                void **gtt_start, **gtt_end;
+                void **vram_start, **vram_end;
+
+                r = radeon_object_create(rdev, NULL, size, true,
+                                         RADEON_GEM_DOMAIN_GTT, false, gtt_obj + i);
+                if (r) {
+                        DRM_ERROR("Failed to create GTT object %d\n", i);
+                        goto out_cleanup;
+                }
+
+                r = radeon_object_pin(gtt_obj[i], RADEON_GEM_DOMAIN_GTT, &gtt_addr);
+                if (r) {
+                        DRM_ERROR("Failed to pin GTT object %d\n", i);
+                        goto out_cleanup;
+                }
+
+                r = radeon_object_kmap(gtt_obj[i], &gtt_map);
+                if (r) {
+                        DRM_ERROR("Failed to map GTT object %d\n", i);
+                        goto out_cleanup;
+                }
+
+                for (gtt_start = gtt_map, gtt_end = gtt_map + size;
+                     gtt_start < gtt_end;
+                     gtt_start++)
+                        *gtt_start = gtt_start;
+
+                radeon_object_kunmap(gtt_obj[i]);
+
+                r = radeon_fence_create(rdev, &fence);
+                if (r) {
+                        DRM_ERROR("Failed to create GTT->VRAM fence %d\n", i);
+                        goto out_cleanup;
+                }
+
+                r = radeon_copy(rdev, gtt_addr, vram_addr, size / 4096, fence);
+                if (r) {
+                        DRM_ERROR("Failed GTT->VRAM copy %d\n", i);
+                        goto out_cleanup;
+                }
+
+                r = radeon_fence_wait(fence, false);
+                if (r) {
+                        DRM_ERROR("Failed to wait for GTT->VRAM fence %d\n", i);
+                        goto out_cleanup;
+                }
+
+                radeon_fence_unref(&fence);
+
+                r = radeon_object_kmap(vram_obj, &vram_map);
+                if (r) {
+                        DRM_ERROR("Failed to map VRAM object after copy %d\n", i);
+                        goto out_cleanup;
+                }
+
+                for (gtt_start = gtt_map, gtt_end = gtt_map + size,
+                     vram_start = vram_map, vram_end = vram_map + size;
+                     vram_start < vram_end;
+                     gtt_start++, vram_start++) {
+                        if (*vram_start != gtt_start) {
+                                DRM_ERROR("Incorrect GTT->VRAM copy %d: Got 0x%p, "
+                                          "expected 0x%p (GTT map 0x%p-0x%p)\n",
+                                          i, *vram_start, gtt_start, gtt_map,
+                                          gtt_end);
+                                radeon_object_kunmap(vram_obj);
+                                goto out_cleanup;
+                        }
+                        *vram_start = vram_start;
+                }
+
+                radeon_object_kunmap(vram_obj);
+
+                r = radeon_fence_create(rdev, &fence);
+                if (r) {
+                        DRM_ERROR("Failed to create VRAM->GTT fence %d\n", i);
+                        goto out_cleanup;
+                }
+
+                r = radeon_copy(rdev, vram_addr, gtt_addr, size / 4096, fence);
+                if (r) {
+                        DRM_ERROR("Failed VRAM->GTT copy %d\n", i);
+                        goto out_cleanup;
+                }
+
+                r = radeon_fence_wait(fence, false);
+                if (r) {
+                        DRM_ERROR("Failed to wait for VRAM->GTT fence %d\n", i);
+                        goto out_cleanup;
+                }
+
+                radeon_fence_unref(&fence);
+
+                r = radeon_object_kmap(gtt_obj[i], &gtt_map);
+                if (r) {
+                        DRM_ERROR("Failed to map GTT object after copy %d\n", i);
+                        goto out_cleanup;
+                }
+
+                for (gtt_start = gtt_map, gtt_end = gtt_map + size,
+                     vram_start = vram_map, vram_end = vram_map + size;
+                     gtt_start < gtt_end;
+                     gtt_start++, vram_start++) {
+                        if (*gtt_start != vram_start) {
+                                DRM_ERROR("Incorrect VRAM->GTT copy %d: Got 0x%p, "
+                                          "expected 0x%p (VRAM map 0x%p-0x%p)\n",
+                                          i, *gtt_start, vram_start, vram_map,
+                                          vram_end);
+                                radeon_object_kunmap(gtt_obj[i]);
+                                goto out_cleanup;
+                        }
+                }
+
+                radeon_object_kunmap(gtt_obj[i]);
+
+                DRM_INFO("Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n",
+                         gtt_addr - rdev->mc.gtt_location);
+        }
+
+out_cleanup:
+        if (vram_obj) {
+                radeon_object_unpin(vram_obj);
+                radeon_object_unref(&vram_obj);
+        }
+        if (gtt_obj) {
+                for (i = 0; i < n; i++) {
+                        if (gtt_obj[i]) {
+                                radeon_object_unpin(gtt_obj[i]);
+                                radeon_object_unref(&gtt_obj[i]);
+                        }
+                }
+                kfree(gtt_obj);
+        }
+        if (fence) {
+                radeon_fence_unref(&fence);
+        }
+        if (r) {
+                printk(KERN_WARNING "Error while testing BO move.\n");
+        }
+}
+
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 1227a97f5169..15c3531377ed 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -355,23 +355,26 @@ static int radeon_bo_move(struct ttm_buffer_object *bo,
         if (!rdev->cp.ready) {
                 /* use memcpy */
                 DRM_ERROR("CP is not ready use memcpy.\n");
-                return ttm_bo_move_memcpy(bo, evict, no_wait, new_mem);
+                goto memcpy;
         }
 
         if (old_mem->mem_type == TTM_PL_VRAM &&
             new_mem->mem_type == TTM_PL_SYSTEM) {
-                return radeon_move_vram_ram(bo, evict, interruptible,
+                r = radeon_move_vram_ram(bo, evict, interruptible,
                                             no_wait, new_mem);
         } else if (old_mem->mem_type == TTM_PL_SYSTEM &&
                    new_mem->mem_type == TTM_PL_VRAM) {
-                return radeon_move_ram_vram(bo, evict, interruptible,
+                r = radeon_move_ram_vram(bo, evict, interruptible,
                                             no_wait, new_mem);
         } else {
                 r = radeon_move_blit(bo, evict, no_wait, new_mem, old_mem);
-                if (unlikely(r)) {
-                        return r;
-                }
         }
+
+        if (r) {
+memcpy:
+                r = ttm_bo_move_memcpy(bo, evict, no_wait, new_mem);
+        }
+
         return r;
 }
 
@@ -429,6 +432,8 @@ static struct ttm_bo_driver radeon_bo_driver = {
         .sync_obj_flush = &radeon_sync_obj_flush,
         .sync_obj_unref = &radeon_sync_obj_unref,
         .sync_obj_ref = &radeon_sync_obj_ref,
+        .move_notify = &radeon_bo_move_notify,
+        .fault_reserve_notify = &radeon_bo_fault_reserve_notify,
 };
 
 int radeon_ttm_init(struct radeon_device *rdev)
@@ -442,13 +447,14 @@ int radeon_ttm_init(struct radeon_device *rdev)
         /* No others user of address space so set it to 0 */
         r = ttm_bo_device_init(&rdev->mman.bdev,
                                rdev->mman.mem_global_ref.object,
-                               &radeon_bo_driver, DRM_FILE_PAGE_OFFSET);
+                               &radeon_bo_driver, DRM_FILE_PAGE_OFFSET,
+                               rdev->need_dma32);
         if (r) {
                 DRM_ERROR("failed initializing buffer object driver(%d).\n", r);
                 return r;
         }
         r = ttm_bo_init_mm(&rdev->mman.bdev, TTM_PL_VRAM, 0,
-                           ((rdev->mc.aper_size) >> PAGE_SHIFT));
+                           ((rdev->mc.real_vram_size) >> PAGE_SHIFT));
         if (r) {
                 DRM_ERROR("Failed initializing VRAM heap.\n");
                 return r;
@@ -465,7 +471,7 @@ int radeon_ttm_init(struct radeon_device *rdev)
                 return r;
         }
         DRM_INFO("radeon: %uM of VRAM memory ready\n",
-                 rdev->mc.vram_size / (1024 * 1024));
+                 rdev->mc.real_vram_size / (1024 * 1024));
         r = ttm_bo_init_mm(&rdev->mman.bdev, TTM_PL_TT, 0,
                            ((rdev->mc.gtt_size) >> PAGE_SHIFT));
         if (r) {
diff --git a/drivers/gpu/drm/radeon/rs400.c b/drivers/gpu/drm/radeon/rs400.c
index cc074b5a8f74..b29affd9c5d8 100644
--- a/drivers/gpu/drm/radeon/rs400.c
+++ b/drivers/gpu/drm/radeon/rs400.c
@@ -29,6 +29,7 @@
 #include <drm/drmP.h>
 #include "radeon_reg.h"
 #include "radeon.h"
+#include "radeon_share.h"
 
 /* rs400,rs480 depends on : */
 void r100_hdp_reset(struct radeon_device *rdev);
@@ -164,7 +165,9 @@ int rs400_gart_enable(struct radeon_device *rdev)
                 WREG32(RADEON_BUS_CNTL, tmp);
         }
         /* Table should be in 32bits address space so ignore bits above. */
-        tmp = rdev->gart.table_addr & 0xfffff000;
+        tmp = (u32)rdev->gart.table_addr & 0xfffff000;
+        tmp |= (upper_32_bits(rdev->gart.table_addr) & 0xff) << 4;
+
         WREG32_MC(RS480_GART_BASE, tmp);
         /* TODO: more tweaking here */
         WREG32_MC(RS480_GART_FEATURE_ID,
@@ -201,10 +204,17 @@ void rs400_gart_disable(struct radeon_device *rdev)
 
 int rs400_gart_set_page(struct radeon_device *rdev, int i, uint64_t addr)
 {
+        uint32_t entry;
+
         if (i < 0 || i > rdev->gart.num_gpu_pages) {
                 return -EINVAL;
         }
-        rdev->gart.table.ram.ptr[i] = cpu_to_le32(((uint32_t)addr) | 0xC);
+
+        entry = (lower_32_bits(addr) & PAGE_MASK) |
+                ((upper_32_bits(addr) & 0xff) << 4) |
+                0xc;
+        entry = cpu_to_le32(entry);
+        rdev->gart.table.ram.ptr[i] = entry;
         return 0;
 }
 
@@ -223,10 +233,9 @@ int rs400_mc_init(struct radeon_device *rdev)
 
         rs400_gpu_init(rdev);
         rs400_gart_disable(rdev);
-        rdev->mc.gtt_location = rdev->mc.vram_size;
+        rdev->mc.gtt_location = rdev->mc.mc_vram_size;
         rdev->mc.gtt_location += (rdev->mc.gtt_size - 1);
         rdev->mc.gtt_location &= ~(rdev->mc.gtt_size - 1);
-        rdev->mc.vram_location = 0xFFFFFFFFUL;
         r = radeon_mc_setup(rdev);
         if (r) {
                 return r;
@@ -238,7 +247,7 @@ int rs400_mc_init(struct radeon_device *rdev)
                        "programming pipes. Bad things might happen.\n");
         }
 
-        tmp = rdev->mc.vram_location + rdev->mc.vram_size - 1;
+        tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
         tmp = REG_SET(RADEON_MC_FB_TOP, tmp >> 16);
         tmp |= REG_SET(RADEON_MC_FB_START, rdev->mc.vram_location >> 16);
         WREG32(RADEON_MC_FB_LOCATION, tmp);
@@ -284,21 +293,12 @@ void rs400_gpu_init(struct radeon_device *rdev)
  */
 void rs400_vram_info(struct radeon_device *rdev)
 {
-        uint32_t tom;
-
         rs400_gart_adjust_size(rdev);
         /* DDR for all card after R300 & IGP */
         rdev->mc.vram_is_ddr = true;
         rdev->mc.vram_width = 128;
 
-        /* read NB_TOM to get the amount of ram stolen for the GPU */
-        tom = RREG32(RADEON_NB_TOM);
-        rdev->mc.vram_size = (((tom >> 16) - (tom & 0xffff) + 1) << 16);
-        WREG32(RADEON_CONFIG_MEMSIZE, rdev->mc.vram_size);
-
-        /* Could aper size report 0 ? */
-        rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
-        rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
+        r100_vram_init_sizes(rdev);
 }
 
 
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index ab0c967553e6..bbea6dee4a94 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -223,7 +223,7 @@ int rs600_mc_init(struct radeon_device *rdev)
                 printk(KERN_WARNING "Failed to wait MC idle while "
                        "programming pipes. Bad things might happen.\n");
         }
-        tmp = rdev->mc.vram_location + rdev->mc.vram_size - 1;
+        tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
         tmp = REG_SET(RS600_MC_FB_TOP, tmp >> 16);
         tmp |= REG_SET(RS600_MC_FB_START, rdev->mc.vram_location >> 16);
         WREG32_MC(RS600_MC_FB_LOCATION, tmp);
@@ -301,6 +301,11 @@ void rs600_vram_info(struct radeon_device *rdev)
         rdev->mc.vram_width = 128;
 }
 
+void rs600_bandwidth_update(struct radeon_device *rdev)
+{
+        /* FIXME: implement, should this be like rs690 ? */
+}
+
 
 /*
  * Indirect registers accessor
diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c
index 79ba85042b5f..839595b00728 100644
--- a/drivers/gpu/drm/radeon/rs690.c
+++ b/drivers/gpu/drm/radeon/rs690.c
@@ -28,6 +28,9 @@
 #include "drmP.h"
 #include "radeon_reg.h"
 #include "radeon.h"
+#include "rs690r.h"
+#include "atom.h"
+#include "atom-bits.h"
 
 /* rs690,rs740 depends on : */
 void r100_hdp_reset(struct radeon_device *rdev);
@@ -64,7 +67,7 @@ int rs690_mc_init(struct radeon_device *rdev)
         rs400_gart_disable(rdev);
 
         /* Setup GPU memory space */
-        rdev->mc.gtt_location = rdev->mc.vram_size;
+        rdev->mc.gtt_location = rdev->mc.mc_vram_size;
         rdev->mc.gtt_location += (rdev->mc.gtt_size - 1);
         rdev->mc.gtt_location &= ~(rdev->mc.gtt_size - 1);
         rdev->mc.vram_location = 0xFFFFFFFFUL;
@@ -79,7 +82,7 @@ int rs690_mc_init(struct radeon_device *rdev)
                 printk(KERN_WARNING "Failed to wait MC idle while "
                        "programming pipes. Bad things might happen.\n");
         }
-        tmp = rdev->mc.vram_location + rdev->mc.vram_size - 1;
+        tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
         tmp = REG_SET(RS690_MC_FB_TOP, tmp >> 16);
         tmp |= REG_SET(RS690_MC_FB_START, rdev->mc.vram_location >> 16);
         WREG32_MC(RS690_MCCFG_FB_LOCATION, tmp);
@@ -138,9 +141,82 @@ void rs690_gpu_init(struct radeon_device *rdev)
 /*
  * VRAM info.
  */
+void rs690_pm_info(struct radeon_device *rdev)
+{
+        int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
+        struct _ATOM_INTEGRATED_SYSTEM_INFO *info;
+        struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 *info_v2;
+        void *ptr;
+        uint16_t data_offset;
+        uint8_t frev, crev;
+        fixed20_12 tmp;
+
+        atom_parse_data_header(rdev->mode_info.atom_context, index, NULL,
+                               &frev, &crev, &data_offset);
+        ptr = rdev->mode_info.atom_context->bios + data_offset;
+        info = (struct _ATOM_INTEGRATED_SYSTEM_INFO *)ptr;
+        info_v2 = (struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 *)ptr;
+        /* Get various system informations from bios */
+        switch (crev) {
+        case 1:
+                tmp.full = rfixed_const(100);
+                rdev->pm.igp_sideport_mclk.full = rfixed_const(info->ulBootUpMemoryClock);
+                rdev->pm.igp_sideport_mclk.full = rfixed_div(rdev->pm.igp_sideport_mclk, tmp);
+                rdev->pm.igp_system_mclk.full = rfixed_const(le16_to_cpu(info->usK8MemoryClock));
+                rdev->pm.igp_ht_link_clk.full = rfixed_const(le16_to_cpu(info->usFSBClock));
+                rdev->pm.igp_ht_link_width.full = rfixed_const(info->ucHTLinkWidth);
+                break;
+        case 2:
+                tmp.full = rfixed_const(100);
+                rdev->pm.igp_sideport_mclk.full = rfixed_const(info_v2->ulBootUpSidePortClock);
+                rdev->pm.igp_sideport_mclk.full = rfixed_div(rdev->pm.igp_sideport_mclk, tmp);
+                rdev->pm.igp_system_mclk.full = rfixed_const(info_v2->ulBootUpUMAClock);
+                rdev->pm.igp_system_mclk.full = rfixed_div(rdev->pm.igp_system_mclk, tmp);
+                rdev->pm.igp_ht_link_clk.full = rfixed_const(info_v2->ulHTLinkFreq);
+                rdev->pm.igp_ht_link_clk.full = rfixed_div(rdev->pm.igp_ht_link_clk, tmp);
+                rdev->pm.igp_ht_link_width.full = rfixed_const(le16_to_cpu(info_v2->usMinHTLinkWidth));
+                break;
+        default:
+                tmp.full = rfixed_const(100);
+                /* We assume the slower possible clock ie worst case */
+                /* DDR 333Mhz */
+                rdev->pm.igp_sideport_mclk.full = rfixed_const(333);
+                /* FIXME: system clock ? */
+                rdev->pm.igp_system_mclk.full = rfixed_const(100);
+                rdev->pm.igp_system_mclk.full = rfixed_div(rdev->pm.igp_system_mclk, tmp);
+                rdev->pm.igp_ht_link_clk.full = rfixed_const(200);
+                rdev->pm.igp_ht_link_width.full = rfixed_const(8);
+                DRM_ERROR("No integrated system info for your GPU, using safe default\n");
+                break;
+        }
+        /* Compute various bandwidth */
+        /* k8_bandwidth = (memory_clk / 2) * 2 * 8 * 0.5 = memory_clk * 4  */
+        tmp.full = rfixed_const(4);
+        rdev->pm.k8_bandwidth.full = rfixed_mul(rdev->pm.igp_system_mclk, tmp);
+        /* ht_bandwidth = ht_clk * 2 * ht_width / 8 * 0.8
+         *              = ht_clk * ht_width / 5
+         */
+        tmp.full = rfixed_const(5);
+        rdev->pm.ht_bandwidth.full = rfixed_mul(rdev->pm.igp_ht_link_clk,
+                                                rdev->pm.igp_ht_link_width);
+        rdev->pm.ht_bandwidth.full = rfixed_div(rdev->pm.ht_bandwidth, tmp);
+        if (tmp.full < rdev->pm.max_bandwidth.full) {
+                /* HT link is a limiting factor */
+                rdev->pm.max_bandwidth.full = tmp.full;
+        }
+        /* sideport_bandwidth = (sideport_clk / 2) * 2 * 2 * 0.7
+         *                    = (sideport_clk * 14) / 10
+         */
+        tmp.full = rfixed_const(14);
+        rdev->pm.sideport_bandwidth.full = rfixed_mul(rdev->pm.igp_sideport_mclk, tmp);
+        tmp.full = rfixed_const(10);
+        rdev->pm.sideport_bandwidth.full = rfixed_div(rdev->pm.sideport_bandwidth, tmp);
+}
+
 void rs690_vram_info(struct radeon_device *rdev)
 {
         uint32_t tmp;
+        fixed20_12 a;
 
         rs400_gart_adjust_size(rdev);
         /* DDR for all card after R300 & IGP */
@@ -152,12 +228,409 @@ void rs690_vram_info(struct radeon_device *rdev)
         } else {
                 rdev->mc.vram_width = 64;
         }
-        rdev->mc.vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
+        rdev->mc.real_vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
+        rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
 
         rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
         rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
+        rs690_pm_info(rdev);
+        /* FIXME: we should enforce default clock in case GPU is not in
+         * default setup
+         */
+        a.full = rfixed_const(100);
+        rdev->pm.sclk.full = rfixed_const(rdev->clock.default_sclk);
+        rdev->pm.sclk.full = rfixed_div(rdev->pm.sclk, a);
+        a.full = rfixed_const(16);
+        /* core_bandwidth = sclk(Mhz) * 16 */
+        rdev->pm.core_bandwidth.full = rfixed_div(rdev->pm.sclk, a);
+}
+
+void rs690_line_buffer_adjust(struct radeon_device *rdev,
+                              struct drm_display_mode *mode1,
+                              struct drm_display_mode *mode2)
+{
+        u32 tmp;
+
+        /*
+         * Line Buffer Setup
+         * There is a single line buffer shared by both display controllers.
+         * DC_LB_MEMORY_SPLIT controls how that line buffer is shared between
+         * the display controllers.  The paritioning can either be done
+         * manually or via one of four preset allocations specified in bits 1:0:
+         *  0 - line buffer is divided in half and shared between crtc
+         *  1 - D1 gets 3/4 of the line buffer, D2 gets 1/4
+         *  2 - D1 gets the whole buffer
+         *  3 - D1 gets 1/4 of the line buffer, D2 gets 3/4
+         * Setting bit 2 of DC_LB_MEMORY_SPLIT controls switches to manual
+         * allocation mode. In manual allocation mode, D1 always starts at 0,
+         * D1 end/2 is specified in bits 14:4; D2 allocation follows D1.
+         */
+        tmp = RREG32(DC_LB_MEMORY_SPLIT) & ~DC_LB_MEMORY_SPLIT_MASK;
+        tmp &= ~DC_LB_MEMORY_SPLIT_SHIFT_MODE;
+        /* auto */
+        if (mode1 && mode2) {
+                if (mode1->hdisplay > mode2->hdisplay) {
+                        if (mode1->hdisplay > 2560)
+                                tmp |= DC_LB_MEMORY_SPLIT_D1_3Q_D2_1Q;
+                        else
+                                tmp |= DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
+                } else if (mode2->hdisplay > mode1->hdisplay) {
+                        if (mode2->hdisplay > 2560)
+                                tmp |= DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q;
+                        else
+                                tmp |= DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
+                } else
+                        tmp |= AVIVO_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
+        } else if (mode1) {
+                tmp |= DC_LB_MEMORY_SPLIT_D1_ONLY;
+        } else if (mode2) {
+                tmp |= DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q;
+        }
+        WREG32(DC_LB_MEMORY_SPLIT, tmp);
 }
 
+struct rs690_watermark {
+        u32        lb_request_fifo_depth;
+        fixed20_12 num_line_pair;
+        fixed20_12 estimated_width;
+        fixed20_12 worst_case_latency;
+        fixed20_12 consumption_rate;
+        fixed20_12 active_time;
+        fixed20_12 dbpp;
+        fixed20_12 priority_mark_max;
+        fixed20_12 priority_mark;
+        fixed20_12 sclk;
+};
+
+void rs690_crtc_bandwidth_compute(struct radeon_device *rdev,
+                                  struct radeon_crtc *crtc,
+                                  struct rs690_watermark *wm)
+{
+        struct drm_display_mode *mode = &crtc->base.mode;
+        fixed20_12 a, b, c;
+        fixed20_12 pclk, request_fifo_depth, tolerable_latency, estimated_width;
+        fixed20_12 consumption_time, line_time, chunk_time, read_delay_latency;
+        /* FIXME: detect IGP with sideport memory, i don't think there is any
+         * such product available
+         */
+        bool sideport = false;
+
+        if (!crtc->base.enabled) {
+                /* FIXME: wouldn't it better to set priority mark to maximum */
+                wm->lb_request_fifo_depth = 4;
+                return;
+        }
+
+        if (crtc->vsc.full > rfixed_const(2))
+                wm->num_line_pair.full = rfixed_const(2);
+        else
+                wm->num_line_pair.full = rfixed_const(1);
+
+        b.full = rfixed_const(mode->crtc_hdisplay);
+        c.full = rfixed_const(256);
+        a.full = rfixed_mul(wm->num_line_pair, b);
+        request_fifo_depth.full = rfixed_div(a, c);
+        if (a.full < rfixed_const(4)) {
+                wm->lb_request_fifo_depth = 4;
+        } else {
+                wm->lb_request_fifo_depth = rfixed_trunc(request_fifo_depth);
+        }
+
+        /* Determine consumption rate
+         *  pclk = pixel clock period(ns) = 1000 / (mode.clock / 1000)
+         *  vtaps = number of vertical taps,
+         *  vsc = vertical scaling ratio, defined as source/destination
+         *  hsc = horizontal scaling ration, defined as source/destination
+         */
+        a.full = rfixed_const(mode->clock);
+        b.full = rfixed_const(1000);
+        a.full = rfixed_div(a, b);
+        pclk.full = rfixed_div(b, a);
+        if (crtc->rmx_type != RMX_OFF) {
+                b.full = rfixed_const(2);
+                if (crtc->vsc.full > b.full)
+                        b.full = crtc->vsc.full;
+                b.full = rfixed_mul(b, crtc->hsc);
+                c.full = rfixed_const(2);
+                b.full = rfixed_div(b, c);
+                consumption_time.full = rfixed_div(pclk, b);
+        } else {
+                consumption_time.full = pclk.full;
+        }
+        a.full = rfixed_const(1);
+        wm->consumption_rate.full = rfixed_div(a, consumption_time);
+
+
+        /* Determine line time
+         *  LineTime = total time for one line of displayhtotal
+         *  LineTime = total number of horizontal pixels
+         *  pclk = pixel clock period(ns)
+         */
+        a.full = rfixed_const(crtc->base.mode.crtc_htotal);
+        line_time.full = rfixed_mul(a, pclk);
+
+        /* Determine active time
+         *  ActiveTime = time of active region of display within one line,
+         *  hactive = total number of horizontal active pixels
+         *  htotal = total number of horizontal pixels
+         */
+        a.full = rfixed_const(crtc->base.mode.crtc_htotal);
+        b.full = rfixed_const(crtc->base.mode.crtc_hdisplay);
+        wm->active_time.full = rfixed_mul(line_time, b);
+        wm->active_time.full = rfixed_div(wm->active_time, a);
+
+        /* Maximun bandwidth is the minimun bandwidth of all component */
+        rdev->pm.max_bandwidth = rdev->pm.core_bandwidth;
+        if (sideport) {
+                if (rdev->pm.max_bandwidth.full > rdev->pm.sideport_bandwidth.full &&
+                        rdev->pm.sideport_bandwidth.full)
+                        rdev->pm.max_bandwidth = rdev->pm.sideport_bandwidth;
+                read_delay_latency.full = rfixed_const(370 * 800 * 1000);
+                read_delay_latency.full = rfixed_div(read_delay_latency,
+                        rdev->pm.igp_sideport_mclk);
+        } else {
+                if (rdev->pm.max_bandwidth.full > rdev->pm.k8_bandwidth.full &&
+                        rdev->pm.k8_bandwidth.full)
+                        rdev->pm.max_bandwidth = rdev->pm.k8_bandwidth;
+                if (rdev->pm.max_bandwidth.full > rdev->pm.ht_bandwidth.full &&
+                        rdev->pm.ht_bandwidth.full)
+                        rdev->pm.max_bandwidth = rdev->pm.ht_bandwidth;
+                read_delay_latency.full = rfixed_const(5000);
+        }
+
+        /* sclk = system clocks(ns) = 1000 / max_bandwidth / 16 */
+        a.full = rfixed_const(16);
+        rdev->pm.sclk.full = rfixed_mul(rdev->pm.max_bandwidth, a);
+        a.full = rfixed_const(1000);
+        rdev->pm.sclk.full = rfixed_div(a, rdev->pm.sclk);
+        /* Determine chunk time
+         * ChunkTime = the time it takes the DCP to send one chunk of data
+         * to the LB which consists of pipeline delay and inter chunk gap
+         * sclk = system clock(ns)
+         */
+        a.full = rfixed_const(256 * 13);
+        chunk_time.full = rfixed_mul(rdev->pm.sclk, a);
+        a.full = rfixed_const(10);
+        chunk_time.full = rfixed_div(chunk_time, a);
+
+        /* Determine the worst case latency
+         * NumLinePair = Number of line pairs to request(1=2 lines, 2=4 lines)
+         * WorstCaseLatency = worst case time from urgent to when the MC starts
+         *                    to return data
+         * READ_DELAY_IDLE_MAX = constant of 1us
+         * ChunkTime = time it takes the DCP to send one chunk of data to the LB
+         *             which consists of pipeline delay and inter chunk gap
+         */
+        if (rfixed_trunc(wm->num_line_pair) > 1) {
+                a.full = rfixed_const(3);
+                wm->worst_case_latency.full = rfixed_mul(a, chunk_time);
+                wm->worst_case_latency.full += read_delay_latency.full;
+        } else {
+                a.full = rfixed_const(2);
+                wm->worst_case_latency.full = rfixed_mul(a, chunk_time);
+                wm->worst_case_latency.full += read_delay_latency.full;
+        }
+
+        /* Determine the tolerable latency
+         * TolerableLatency = Any given request has only 1 line time
+         *                    for the data to be returned
+         * LBRequestFifoDepth = Number of chunk requests the LB can
+         *                      put into the request FIFO for a display
+         *  LineTime = total time for one line of display
+         *  ChunkTime = the time it takes the DCP to send one chunk
+         *              of data to the LB which consists of
+         *  pipeline delay and inter chunk gap
+         */
+        if ((2+wm->lb_request_fifo_depth) >= rfixed_trunc(request_fifo_depth)) {
+                tolerable_latency.full = line_time.full;
+        } else {
+                tolerable_latency.full = rfixed_const(wm->lb_request_fifo_depth - 2);
+                tolerable_latency.full = request_fifo_depth.full - tolerable_latency.full;
+                tolerable_latency.full = rfixed_mul(tolerable_latency, chunk_time);
+                tolerable_latency.full = line_time.full - tolerable_latency.full;
+        }
+        /* We assume worst case 32bits (4 bytes) */
+        wm->dbpp.full = rfixed_const(4 * 8);
+
+        /* Determine the maximum priority mark
+         *  width = viewport width in pixels
+         */
+        a.full = rfixed_const(16);
+        wm->priority_mark_max.full = rfixed_const(crtc->base.mode.crtc_hdisplay);
+        wm->priority_mark_max.full = rfixed_div(wm->priority_mark_max, a);
+
+        /* Determine estimated width */
+        estimated_width.full = tolerable_latency.full - wm->worst_case_latency.full;
+        estimated_width.full = rfixed_div(estimated_width, consumption_time);
+        if (rfixed_trunc(estimated_width) > crtc->base.mode.crtc_hdisplay) {
+                wm->priority_mark.full = rfixed_const(10);
+        } else {
+                a.full = rfixed_const(16);
+                wm->priority_mark.full = rfixed_div(estimated_width, a);
+                wm->priority_mark.full = wm->priority_mark_max.full - wm->priority_mark.full;
+        }
+}
+
+void rs690_bandwidth_update(struct radeon_device *rdev)
+{
+        struct drm_display_mode *mode0 = NULL;
+        struct drm_display_mode *mode1 = NULL;
+        struct rs690_watermark wm0;
+        struct rs690_watermark wm1;
+        u32 tmp;
+        fixed20_12 priority_mark02, priority_mark12, fill_rate;
+        fixed20_12 a, b;
+
+        if (rdev->mode_info.crtcs[0]->base.enabled)
+                mode0 = &rdev->mode_info.crtcs[0]->base.mode;
+        if (rdev->mode_info.crtcs[1]->base.enabled)
+                mode1 = &rdev->mode_info.crtcs[1]->base.mode;
+        /*
+         * Set display0/1 priority up in the memory controller for
+         * modes if the user specifies HIGH for displaypriority
+         * option.
+         */
+        if (rdev->disp_priority == 2) {
+                tmp = RREG32_MC(MC_INIT_MISC_LAT_TIMER);
+                tmp &= ~MC_DISP1R_INIT_LAT_MASK;
+                tmp &= ~MC_DISP0R_INIT_LAT_MASK;
+                if (mode1)
+                        tmp |= (1 << MC_DISP1R_INIT_LAT_SHIFT);
+                if (mode0)
+                        tmp |= (1 << MC_DISP0R_INIT_LAT_SHIFT);
+                WREG32_MC(MC_INIT_MISC_LAT_TIMER, tmp);
+        }
+        rs690_line_buffer_adjust(rdev, mode0, mode1);
+
+        if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740))
+                WREG32(DCP_CONTROL, 0);
+        if ((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880))
+                WREG32(DCP_CONTROL, 2);
+
+        rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0);
+        rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1);
+
+        tmp = (wm0.lb_request_fifo_depth - 1);
+        tmp |= (wm1.lb_request_fifo_depth - 1) << 16;
+        WREG32(LB_MAX_REQ_OUTSTANDING, tmp);
+
+        if (mode0 && mode1) {
+                if (rfixed_trunc(wm0.dbpp) > 64)
+                        a.full = rfixed_mul(wm0.dbpp, wm0.num_line_pair);
+                else
+                        a.full = wm0.num_line_pair.full;
+                if (rfixed_trunc(wm1.dbpp) > 64)
+                        b.full = rfixed_mul(wm1.dbpp, wm1.num_line_pair);
+                else
+                        b.full = wm1.num_line_pair.full;
+                a.full += b.full;
+                fill_rate.full = rfixed_div(wm0.sclk, a);
+                if (wm0.consumption_rate.full > fill_rate.full) {
+                        b.full = wm0.consumption_rate.full - fill_rate.full;
+                        b.full = rfixed_mul(b, wm0.active_time);
+                        a.full = rfixed_mul(wm0.worst_case_latency,
+                                                wm0.consumption_rate);
+                        a.full = a.full + b.full;
+                        b.full = rfixed_const(16 * 1000);
+                        priority_mark02.full = rfixed_div(a, b);
+                } else {
+                        a.full = rfixed_mul(wm0.worst_case_latency,
+                                                wm0.consumption_rate);
+                        b.full = rfixed_const(16 * 1000);
+                        priority_mark02.full = rfixed_div(a, b);
+                }
+                if (wm1.consumption_rate.full > fill_rate.full) {
+                        b.full = wm1.consumption_rate.full - fill_rate.full;
+                        b.full = rfixed_mul(b, wm1.active_time);
+                        a.full = rfixed_mul(wm1.worst_case_latency,
+                                                wm1.consumption_rate);
+                        a.full = a.full + b.full;
+                        b.full = rfixed_const(16 * 1000);
+                        priority_mark12.full = rfixed_div(a, b);
+                } else {
+                        a.full = rfixed_mul(wm1.worst_case_latency,
+                                                wm1.consumption_rate);
+                        b.full = rfixed_const(16 * 1000);
+                        priority_mark12.full = rfixed_div(a, b);
+                }
+                if (wm0.priority_mark.full > priority_mark02.full)
+                        priority_mark02.full = wm0.priority_mark.full;
+                if (rfixed_trunc(priority_mark02) < 0)
+                        priority_mark02.full = 0;
+                if (wm0.priority_mark_max.full > priority_mark02.full)
+                        priority_mark02.full = wm0.priority_mark_max.full;
+                if (wm1.priority_mark.full > priority_mark12.full)
+                        priority_mark12.full = wm1.priority_mark.full;
+                if (rfixed_trunc(priority_mark12) < 0)
+                        priority_mark12.full = 0;
+                if (wm1.priority_mark_max.full > priority_mark12.full)
+                        priority_mark12.full = wm1.priority_mark_max.full;
+                WREG32(D1MODE_PRIORITY_A_CNT, rfixed_trunc(priority_mark02));
+                WREG32(D1MODE_PRIORITY_B_CNT, rfixed_trunc(priority_mark02));
+                WREG32(D2MODE_PRIORITY_A_CNT, rfixed_trunc(priority_mark12));
+                WREG32(D2MODE_PRIORITY_B_CNT, rfixed_trunc(priority_mark12));
+        } else if (mode0) {
+                if (rfixed_trunc(wm0.dbpp) > 64)
+                        a.full = rfixed_mul(wm0.dbpp, wm0.num_line_pair);
+                else
+                        a.full = wm0.num_line_pair.full;
+                fill_rate.full = rfixed_div(wm0.sclk, a);
+                if (wm0.consumption_rate.full > fill_rate.full) {
+                        b.full = wm0.consumption_rate.full - fill_rate.full;
+                        b.full = rfixed_mul(b, wm0.active_time);
+                        a.full = rfixed_mul(wm0.worst_case_latency,
+                                                wm0.consumption_rate);
+                        a.full = a.full + b.full;
+                        b.full = rfixed_const(16 * 1000);
+                        priority_mark02.full = rfixed_div(a, b);
+                } else {
+                        a.full = rfixed_mul(wm0.worst_case_latency,
+                                                wm0.consumption_rate);
+                        b.full = rfixed_const(16 * 1000);
+                        priority_mark02.full = rfixed_div(a, b);
+                }
+                if (wm0.priority_mark.full > priority_mark02.full)
+                        priority_mark02.full = wm0.priority_mark.full;
+                if (rfixed_trunc(priority_mark02) < 0)
+                        priority_mark02.full = 0;
+                if (wm0.priority_mark_max.full > priority_mark02.full)
+                        priority_mark02.full = wm0.priority_mark_max.full;
+                WREG32(D1MODE_PRIORITY_A_CNT, rfixed_trunc(priority_mark02));
+                WREG32(D1MODE_PRIORITY_B_CNT, rfixed_trunc(priority_mark02));
+                WREG32(D2MODE_PRIORITY_A_CNT, MODE_PRIORITY_OFF);
+                WREG32(D2MODE_PRIORITY_B_CNT, MODE_PRIORITY_OFF);
+        } else {
+                if (rfixed_trunc(wm1.dbpp) > 64)
+                        a.full = rfixed_mul(wm1.dbpp, wm1.num_line_pair);
+                else
+                        a.full = wm1.num_line_pair.full;
+                fill_rate.full = rfixed_div(wm1.sclk, a);
+                if (wm1.consumption_rate.full > fill_rate.full) {
+                        b.full = wm1.consumption_rate.full - fill_rate.full;
+                        b.full = rfixed_mul(b, wm1.active_time);
+                        a.full = rfixed_mul(wm1.worst_case_latency,
+                                                wm1.consumption_rate);
+                        a.full = a.full + b.full;
+                        b.full = rfixed_const(16 * 1000);
+                        priority_mark12.full = rfixed_div(a, b);
+                } else {
+                        a.full = rfixed_mul(wm1.worst_case_latency,
+                                                wm1.consumption_rate);
+                        b.full = rfixed_const(16 * 1000);
+                        priority_mark12.full = rfixed_div(a, b);
+                }
+                if (wm1.priority_mark.full > priority_mark12.full)
+                        priority_mark12.full = wm1.priority_mark.full;
+                if (rfixed_trunc(priority_mark12) < 0)
+                        priority_mark12.full = 0;
+                if (wm1.priority_mark_max.full > priority_mark12.full)
+                        priority_mark12.full = wm1.priority_mark_max.full;
+                WREG32(D1MODE_PRIORITY_A_CNT, MODE_PRIORITY_OFF);
+                WREG32(D1MODE_PRIORITY_B_CNT, MODE_PRIORITY_OFF);
+                WREG32(D2MODE_PRIORITY_A_CNT, rfixed_trunc(priority_mark12));
+                WREG32(D2MODE_PRIORITY_B_CNT, rfixed_trunc(priority_mark12));
+        }
+}
 
 /*
  * Indirect registers accessor
diff --git a/drivers/gpu/drm/radeon/rs690r.h b/drivers/gpu/drm/radeon/rs690r.h
new file mode 100644
index 000000000000..c0d9faa2175b
--- /dev/null
+++ b/drivers/gpu/drm/radeon/rs690r.h
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2008 Advanced Micro Devices, Inc.
+ * Copyright 2008 Red Hat Inc.
+ * Copyright 2009 Jerome Glisse.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Dave Airlie
+ *          Alex Deucher
+ *          Jerome Glisse
+ */
+#ifndef RS690R_H
+#define RS690R_H
+
+/* RS690/RS740 registers */
+#define MC_INDEX                        0x0078
+#       define MC_INDEX_MASK                    0x1FF
+#       define MC_INDEX_WR_EN                   (1 << 9)
+#       define MC_INDEX_WR_ACK                  0x7F
+#define MC_DATA                         0x007C
+#define HDP_FB_LOCATION                 0x0134
+#define DC_LB_MEMORY_SPLIT              0x6520
+#define         DC_LB_MEMORY_SPLIT_MASK                 0x00000003
+#define         DC_LB_MEMORY_SPLIT_SHIFT                0
+#define         DC_LB_MEMORY_SPLIT_D1HALF_D2HALF        0
+#define         DC_LB_MEMORY_SPLIT_D1_3Q_D2_1Q          1
+#define         DC_LB_MEMORY_SPLIT_D1_ONLY              2
+#define         DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q          3
+#define         DC_LB_MEMORY_SPLIT_SHIFT_MODE           (1 << 2)
+#define         DC_LB_DISP1_END_ADR_SHIFT               4
+#define         DC_LB_DISP1_END_ADR_MASK                0x00007FF0
+#define D1MODE_PRIORITY_A_CNT           0x6548
+#define         MODE_PRIORITY_MARK_MASK                 0x00007FFF
+#define         MODE_PRIORITY_OFF                       (1 << 16)
+#define         MODE_PRIORITY_ALWAYS_ON                 (1 << 20)
+#define         MODE_PRIORITY_FORCE_MASK                (1 << 24)
+#define D1MODE_PRIORITY_B_CNT           0x654C
+#define LB_MAX_REQ_OUTSTANDING          0x6D58
+#define         LB_D1_MAX_REQ_OUTSTANDING_MASK          0x0000000F
+#define         LB_D1_MAX_REQ_OUTSTANDING_SHIFT         0
+#define         LB_D2_MAX_REQ_OUTSTANDING_MASK          0x000F0000
+#define         LB_D2_MAX_REQ_OUTSTANDING_SHIFT         16
+#define DCP_CONTROL                     0x6C9C
+#define D2MODE_PRIORITY_A_CNT           0x6D48
+#define D2MODE_PRIORITY_B_CNT           0x6D4C
+
+/* MC indirect registers */
+#define MC_STATUS_IDLE                          (1 << 0)
+#define MC_MISC_CNTL                    0x18
+#define         DISABLE_GTW                     (1 << 1)
+#define         GART_INDEX_REG_EN               (1 << 12)
+#define         BLOCK_GFX_D3_EN                 (1 << 14)
+#define GART_FEATURE_ID                 0x2B
+#define         HANG_EN                         (1 << 11)
+#define         TLB_ENABLE                      (1 << 18)
+#define         P2P_ENABLE                      (1 << 19)
+#define         GTW_LAC_EN                      (1 << 25)
+#define         LEVEL2_GART                     (0 << 30)
+#define         LEVEL1_GART                     (1 << 30)
+#define         PDC_EN                          (1 << 31)
+#define GART_BASE                       0x2C
+#define GART_CACHE_CNTRL                0x2E
+#       define GART_CACHE_INVALIDATE            (1 << 0)
+#define MC_STATUS                       0x90
+#define MCCFG_FB_LOCATION               0x100
+#define         MC_FB_START_MASK                0x0000FFFF
+#define         MC_FB_START_SHIFT               0
+#define         MC_FB_TOP_MASK                  0xFFFF0000
+#define         MC_FB_TOP_SHIFT                 16
+#define MCCFG_AGP_LOCATION              0x101
+#define         MC_AGP_START_MASK               0x0000FFFF
+#define         MC_AGP_START_SHIFT              0
+#define         MC_AGP_TOP_MASK                 0xFFFF0000
+#define         MC_AGP_TOP_SHIFT                16
+#define MCCFG_AGP_BASE                  0x102
+#define MCCFG_AGP_BASE_2                0x103
+#define MC_INIT_MISC_LAT_TIMER          0x104
+#define         MC_DISP0R_INIT_LAT_SHIFT        8
+#define         MC_DISP0R_INIT_LAT_MASK         0x00000F00
+#define         MC_DISP1R_INIT_LAT_SHIFT        12
+#define         MC_DISP1R_INIT_LAT_MASK         0x0000F000
+
+#endif
diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
index ffea37b1b3e2..fd8f3ca716ea 100644
--- a/drivers/gpu/drm/radeon/rv515.c
+++ b/drivers/gpu/drm/radeon/rv515.c
@@ -27,8 +27,9 @@
  */
 #include <linux/seq_file.h>
 #include "drmP.h"
-#include "radeon_reg.h"
+#include "rv515r.h"
 #include "radeon.h"
+#include "radeon_share.h"
 
 /* rv515 depends on : */
 void r100_hdp_reset(struct radeon_device *rdev);
@@ -99,26 +100,26 @@ int rv515_mc_init(struct radeon_device *rdev)
                        "programming pipes. Bad things might happen.\n");
         }
         /* Write VRAM size in case we are limiting it */
-        WREG32(RADEON_CONFIG_MEMSIZE, rdev->mc.vram_size);
-        tmp = REG_SET(RV515_MC_FB_START, rdev->mc.vram_location >> 16);
+        WREG32(RADEON_CONFIG_MEMSIZE, rdev->mc.real_vram_size);
+        tmp = REG_SET(MC_FB_START, rdev->mc.vram_location >> 16);
         WREG32(0x134, tmp);
-        tmp = rdev->mc.vram_location + rdev->mc.vram_size - 1;
-        tmp = REG_SET(RV515_MC_FB_TOP, tmp >> 16);
-        tmp |= REG_SET(RV515_MC_FB_START, rdev->mc.vram_location >> 16);
-        WREG32_MC(RV515_MC_FB_LOCATION, tmp);
-        WREG32(RS690_HDP_FB_LOCATION, rdev->mc.vram_location >> 16);
+        tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
+        tmp = REG_SET(MC_FB_TOP, tmp >> 16);
+        tmp |= REG_SET(MC_FB_START, rdev->mc.vram_location >> 16);
+        WREG32_MC(MC_FB_LOCATION, tmp);
+        WREG32(HDP_FB_LOCATION, rdev->mc.vram_location >> 16);
         WREG32(0x310, rdev->mc.vram_location);
         if (rdev->flags & RADEON_IS_AGP) {
                 tmp = rdev->mc.gtt_location + rdev->mc.gtt_size - 1;
-                tmp = REG_SET(RV515_MC_AGP_TOP, tmp >> 16);
-                tmp |= REG_SET(RV515_MC_AGP_START, rdev->mc.gtt_location >> 16);
-                WREG32_MC(RV515_MC_AGP_LOCATION, tmp);
-                WREG32_MC(RV515_MC_AGP_BASE, rdev->mc.agp_base);
-                WREG32_MC(RV515_MC_AGP_BASE_2, 0);
+                tmp = REG_SET(MC_AGP_TOP, tmp >> 16);
+                tmp |= REG_SET(MC_AGP_START, rdev->mc.gtt_location >> 16);
+                WREG32_MC(MC_AGP_LOCATION, tmp);
+                WREG32_MC(MC_AGP_BASE, rdev->mc.agp_base);
+                WREG32_MC(MC_AGP_BASE_2, 0);
         } else {
-                WREG32_MC(RV515_MC_AGP_LOCATION, 0x0FFFFFFF);
-                WREG32_MC(RV515_MC_AGP_BASE, 0);
-                WREG32_MC(RV515_MC_AGP_BASE_2, 0);
+                WREG32_MC(MC_AGP_LOCATION, 0x0FFFFFFF);
+                WREG32_MC(MC_AGP_BASE, 0);
+                WREG32_MC(MC_AGP_BASE_2, 0);
         }
         return 0;
 }
@@ -136,95 +137,67 @@ void rv515_mc_fini(struct radeon_device *rdev)
  */
 void rv515_ring_start(struct radeon_device *rdev)
 {
-        unsigned gb_tile_config;
         int r;
 
-        /* Sub pixel 1/12 so we can have 4K rendering according to doc */
-        gb_tile_config = R300_ENABLE_TILING | R300_TILE_SIZE_16;
-        switch (rdev->num_gb_pipes) {
-        case 2:
-                gb_tile_config |= R300_PIPE_COUNT_R300;
-                break;
-        case 3:
-                gb_tile_config |= R300_PIPE_COUNT_R420_3P;
-                break;
-        case 4:
-                gb_tile_config |= R300_PIPE_COUNT_R420;
-                break;
-        case 1:
-        default:
-                gb_tile_config |= R300_PIPE_COUNT_RV350;
-                break;
-        }
-
         r = radeon_ring_lock(rdev, 64);
         if (r) {
                 return;
         }
-        radeon_ring_write(rdev, PACKET0(RADEON_ISYNC_CNTL, 0));
-        radeon_ring_write(rdev,
-                          RADEON_ISYNC_ANY2D_IDLE3D |
-                          RADEON_ISYNC_ANY3D_IDLE2D |
-                          RADEON_ISYNC_WAIT_IDLEGUI |
-                          RADEON_ISYNC_CPSCRATCH_IDLEGUI);
-        radeon_ring_write(rdev, PACKET0(R300_GB_TILE_CONFIG, 0));
-        radeon_ring_write(rdev, gb_tile_config);
-        radeon_ring_write(rdev, PACKET0(RADEON_WAIT_UNTIL, 0));
+        radeon_ring_write(rdev, PACKET0(ISYNC_CNTL, 0));
         radeon_ring_write(rdev,
-                          RADEON_WAIT_2D_IDLECLEAN |
-                          RADEON_WAIT_3D_IDLECLEAN);
+                          ISYNC_ANY2D_IDLE3D |
+                          ISYNC_ANY3D_IDLE2D |
+                          ISYNC_WAIT_IDLEGUI |
+                          ISYNC_CPSCRATCH_IDLEGUI);
+        radeon_ring_write(rdev, PACKET0(WAIT_UNTIL, 0));
+        radeon_ring_write(rdev, WAIT_2D_IDLECLEAN | WAIT_3D_IDLECLEAN);
         radeon_ring_write(rdev, PACKET0(0x170C, 0));
         radeon_ring_write(rdev, 1 << 31);
-        radeon_ring_write(rdev, PACKET0(R300_GB_SELECT, 0));
+        radeon_ring_write(rdev, PACKET0(GB_SELECT, 0));
         radeon_ring_write(rdev, 0);
-        radeon_ring_write(rdev, PACKET0(R300_GB_ENABLE, 0));
+        radeon_ring_write(rdev, PACKET0(GB_ENABLE, 0));
         radeon_ring_write(rdev, 0);
         radeon_ring_write(rdev, PACKET0(0x42C8, 0));
         radeon_ring_write(rdev, (1 << rdev->num_gb_pipes) - 1);
-        radeon_ring_write(rdev, PACKET0(R500_VAP_INDEX_OFFSET, 0));
+        radeon_ring_write(rdev, PACKET0(VAP_INDEX_OFFSET, 0));
         radeon_ring_write(rdev, 0);
-        radeon_ring_write(rdev, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
-        radeon_ring_write(rdev, R300_RB3D_DC_FLUSH | R300_RB3D_DC_FREE);
-        radeon_ring_write(rdev, PACKET0(R300_RB3D_ZCACHE_CTLSTAT, 0));
-        radeon_ring_write(rdev, R300_ZC_FLUSH | R300_ZC_FREE);
-        radeon_ring_write(rdev, PACKET0(RADEON_WAIT_UNTIL, 0));
-        radeon_ring_write(rdev,
-                          RADEON_WAIT_2D_IDLECLEAN |
-                          RADEON_WAIT_3D_IDLECLEAN);
-        radeon_ring_write(rdev, PACKET0(R300_GB_AA_CONFIG, 0));
+        radeon_ring_write(rdev, PACKET0(RB3D_DSTCACHE_CTLSTAT, 0));
+        radeon_ring_write(rdev, RB3D_DC_FLUSH | RB3D_DC_FREE);
+        radeon_ring_write(rdev, PACKET0(ZB_ZCACHE_CTLSTAT, 0));
+        radeon_ring_write(rdev, ZC_FLUSH | ZC_FREE);
+        radeon_ring_write(rdev, PACKET0(WAIT_UNTIL, 0));
+        radeon_ring_write(rdev, WAIT_2D_IDLECLEAN | WAIT_3D_IDLECLEAN);
+        radeon_ring_write(rdev, PACKET0(GB_AA_CONFIG, 0));
         radeon_ring_write(rdev, 0);
-        radeon_ring_write(rdev, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
-        radeon_ring_write(rdev, R300_RB3D_DC_FLUSH | R300_RB3D_DC_FREE);
-        radeon_ring_write(rdev, PACKET0(R300_RB3D_ZCACHE_CTLSTAT, 0));
-        radeon_ring_write(rdev, R300_ZC_FLUSH | R300_ZC_FREE);
-        radeon_ring_write(rdev, PACKET0(R300_GB_MSPOS0, 0));
-        radeon_ring_write(rdev,
-                          ((6 << R300_MS_X0_SHIFT) |
-                           (6 << R300_MS_Y0_SHIFT) |
-                           (6 << R300_MS_X1_SHIFT) |
-                           (6 << R300_MS_Y1_SHIFT) |
-                           (6 << R300_MS_X2_SHIFT) |
-                           (6 << R300_MS_Y2_SHIFT) |
-                           (6 << R300_MSBD0_Y_SHIFT) |
-                           (6 << R300_MSBD0_X_SHIFT)));
-        radeon_ring_write(rdev, PACKET0(R300_GB_MSPOS1, 0));
+        radeon_ring_write(rdev, PACKET0(RB3D_DSTCACHE_CTLSTAT, 0));
+        radeon_ring_write(rdev, RB3D_DC_FLUSH | RB3D_DC_FREE);
+        radeon_ring_write(rdev, PACKET0(ZB_ZCACHE_CTLSTAT, 0));
+        radeon_ring_write(rdev, ZC_FLUSH | ZC_FREE);
+        radeon_ring_write(rdev, PACKET0(GB_MSPOS0, 0));
         radeon_ring_write(rdev,
-                          ((6 << R300_MS_X3_SHIFT) |
-                           (6 << R300_MS_Y3_SHIFT) |
-                           (6 << R300_MS_X4_SHIFT) |
-                           (6 << R300_MS_Y4_SHIFT) |
-                           (6 << R300_MS_X5_SHIFT) |
-                           (6 << R300_MS_Y5_SHIFT) |
-                           (6 << R300_MSBD1_SHIFT)));
-        radeon_ring_write(rdev, PACKET0(R300_GA_ENHANCE, 0));
-        radeon_ring_write(rdev, R300_GA_DEADLOCK_CNTL | R300_GA_FASTSYNC_CNTL);
-        radeon_ring_write(rdev, PACKET0(R300_GA_POLY_MODE, 0));
+                          ((6 << MS_X0_SHIFT) |
+                           (6 << MS_Y0_SHIFT) |
+                           (6 << MS_X1_SHIFT) |
+                           (6 << MS_Y1_SHIFT) |
+                           (6 << MS_X2_SHIFT) |
+                           (6 << MS_Y2_SHIFT) |
+                           (6 << MSBD0_Y_SHIFT) |
+                           (6 << MSBD0_X_SHIFT)));
+        radeon_ring_write(rdev, PACKET0(GB_MSPOS1, 0));
         radeon_ring_write(rdev,
-                          R300_FRONT_PTYPE_TRIANGE | R300_BACK_PTYPE_TRIANGE);
-        radeon_ring_write(rdev, PACKET0(R300_GA_ROUND_MODE, 0));
-        radeon_ring_write(rdev,
-                          R300_GEOMETRY_ROUND_NEAREST |
-                          R300_COLOR_ROUND_NEAREST);
+                          ((6 << MS_X3_SHIFT) |
+                           (6 << MS_Y3_SHIFT) |
+                           (6 << MS_X4_SHIFT) |
+                           (6 << MS_Y4_SHIFT) |
+                           (6 << MS_X5_SHIFT) |
+                           (6 << MS_Y5_SHIFT) |
+                           (6 << MSBD1_SHIFT)));
+        radeon_ring_write(rdev, PACKET0(GA_ENHANCE, 0));
+        radeon_ring_write(rdev, GA_DEADLOCK_CNTL | GA_FASTSYNC_CNTL);
+        radeon_ring_write(rdev, PACKET0(GA_POLY_MODE, 0));
+        radeon_ring_write(rdev, FRONT_PTYPE_TRIANGE | BACK_PTYPE_TRIANGE);
+        radeon_ring_write(rdev, PACKET0(GA_ROUND_MODE, 0));
+        radeon_ring_write(rdev, GEOMETRY_ROUND_NEAREST | COLOR_ROUND_NEAREST);
         radeon_ring_write(rdev, PACKET0(0x20C8, 0));
         radeon_ring_write(rdev, 0);
         radeon_ring_unlock_commit(rdev);
@@ -242,8 +215,8 @@ int rv515_mc_wait_for_idle(struct radeon_device *rdev)
 
         for (i = 0; i < rdev->usec_timeout; i++) {
                 /* read MC_STATUS */
-                tmp = RREG32_MC(RV515_MC_STATUS);
-                if (tmp & RV515_MC_STATUS_IDLE) {
+                tmp = RREG32_MC(MC_STATUS);
+                if (tmp & MC_STATUS_IDLE) {
                         return 0;
                 }
                 DRM_UDELAY(1);
@@ -291,33 +264,33 @@ int rv515_ga_reset(struct radeon_device *rdev)
         reinit_cp = rdev->cp.ready;
         rdev->cp.ready = false;
         for (i = 0; i < rdev->usec_timeout; i++) {
-                WREG32(RADEON_CP_CSQ_MODE, 0);
-                WREG32(RADEON_CP_CSQ_CNTL, 0);
-                WREG32(RADEON_RBBM_SOFT_RESET, 0x32005);
-                (void)RREG32(RADEON_RBBM_SOFT_RESET);
+                WREG32(CP_CSQ_MODE, 0);
+                WREG32(CP_CSQ_CNTL, 0);
+                WREG32(RBBM_SOFT_RESET, 0x32005);
+                (void)RREG32(RBBM_SOFT_RESET);
                 udelay(200);
-                WREG32(RADEON_RBBM_SOFT_RESET, 0);
+                WREG32(RBBM_SOFT_RESET, 0);
                 /* Wait to prevent race in RBBM_STATUS */
                 mdelay(1);
-                tmp = RREG32(RADEON_RBBM_STATUS);
+                tmp = RREG32(RBBM_STATUS);
                 if (tmp & ((1 << 20) | (1 << 26))) {
                         DRM_ERROR("VAP & CP still busy (RBBM_STATUS=0x%08X)\n", tmp);
                         /* GA still busy soft reset it */
                         WREG32(0x429C, 0x200);
-                        WREG32(R300_VAP_PVS_STATE_FLUSH_REG, 0);
+                        WREG32(VAP_PVS_STATE_FLUSH_REG, 0);
                         WREG32(0x43E0, 0);
                         WREG32(0x43E4, 0);
                         WREG32(0x24AC, 0);
                 }
                 /* Wait to prevent race in RBBM_STATUS */
                 mdelay(1);
-                tmp = RREG32(RADEON_RBBM_STATUS);
+                tmp = RREG32(RBBM_STATUS);
                 if (!(tmp & ((1 << 20) | (1 << 26)))) {
                         break;
                 }
         }
         for (i = 0; i < rdev->usec_timeout; i++) {
-                tmp = RREG32(RADEON_RBBM_STATUS);
+                tmp = RREG32(RBBM_STATUS);
                 if (!(tmp & ((1 << 20) | (1 << 26)))) {
                         DRM_INFO("GA reset succeed (RBBM_STATUS=0x%08X)\n",
                                  tmp);
@@ -331,7 +304,7 @@ int rv515_ga_reset(struct radeon_device *rdev)
                 }
                 DRM_UDELAY(1);
         }
-        tmp = RREG32(RADEON_RBBM_STATUS);
+        tmp = RREG32(RBBM_STATUS);
         DRM_ERROR("Failed to reset GA ! (RBBM_STATUS=0x%08X)\n", tmp);
         return -1;
 }
@@ -341,7 +314,7 @@ int rv515_gpu_reset(struct radeon_device *rdev)
         uint32_t status;
 
         /* reset order likely matter */
-        status = RREG32(RADEON_RBBM_STATUS);
+        status = RREG32(RBBM_STATUS);
         /* reset HDP */
         r100_hdp_reset(rdev);
         /* reset rb2d */
@@ -353,12 +326,12 @@ int rv515_gpu_reset(struct radeon_device *rdev)
                 rv515_ga_reset(rdev);
         }
         /* reset CP */
-        status = RREG32(RADEON_RBBM_STATUS);
+        status = RREG32(RBBM_STATUS);
         if (status & (1 << 16)) {
                 r100_cp_reset(rdev);
         }
         /* Check if GPU is idle */
-        status = RREG32(RADEON_RBBM_STATUS);
+        status = RREG32(RBBM_STATUS);
         if (status & (1 << 31)) {
                 DRM_ERROR("Failed to reset GPU (RBBM_STATUS=0x%08X)\n", status);
                 return -1;
@@ -377,8 +350,7 @@ static void rv515_vram_get_type(struct radeon_device *rdev)
 
         rdev->mc.vram_width = 128;
         rdev->mc.vram_is_ddr = true;
-        tmp = RREG32_MC(RV515_MC_CNTL);
-        tmp &= RV515_MEM_NUM_CHANNELS_MASK;
+        tmp = RREG32_MC(RV515_MC_CNTL) & MEM_NUM_CHANNELS_MASK;
         switch (tmp) {
         case 0:
                 rdev->mc.vram_width = 64;
@@ -394,11 +366,17 @@ static void rv515_vram_get_type(struct radeon_device *rdev)
 
 void rv515_vram_info(struct radeon_device *rdev)
 {
+        fixed20_12 a;
+
         rv515_vram_get_type(rdev);
-        rdev->mc.vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
 
-        rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
-        rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
+        r100_vram_init_sizes(rdev);
+        /* FIXME: we should enforce default clock in case GPU is not in
+         * default setup
+         */
+        a.full = rfixed_const(100);
+        rdev->pm.sclk.full = rfixed_const(rdev->clock.default_sclk);
+        rdev->pm.sclk.full = rfixed_div(rdev->pm.sclk, a);
 }
 
 
@@ -409,35 +387,35 @@ uint32_t rv515_mc_rreg(struct radeon_device *rdev, uint32_t reg)
 {
         uint32_t r;
 
-        WREG32(R520_MC_IND_INDEX, 0x7f0000 | (reg & 0xffff));
-        r = RREG32(R520_MC_IND_DATA);
-        WREG32(R520_MC_IND_INDEX, 0);
+        WREG32(MC_IND_INDEX, 0x7f0000 | (reg & 0xffff));
+        r = RREG32(MC_IND_DATA);
+        WREG32(MC_IND_INDEX, 0);
         return r;
 }
 
 void rv515_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
 {
-        WREG32(R520_MC_IND_INDEX, 0xff0000 | ((reg) & 0xffff));
-        WREG32(R520_MC_IND_DATA, (v));
-        WREG32(R520_MC_IND_INDEX, 0);
+        WREG32(MC_IND_INDEX, 0xff0000 | ((reg) & 0xffff));
+        WREG32(MC_IND_DATA, (v));
+        WREG32(MC_IND_INDEX, 0);
 }
 
 uint32_t rv515_pcie_rreg(struct radeon_device *rdev, uint32_t reg)
 {
         uint32_t r;
 
-        WREG32(RADEON_PCIE_INDEX, ((reg) & 0x7ff));
-        (void)RREG32(RADEON_PCIE_INDEX);
-        r = RREG32(RADEON_PCIE_DATA);
+        WREG32(PCIE_INDEX, ((reg) & 0x7ff));
+        (void)RREG32(PCIE_INDEX);
+        r = RREG32(PCIE_DATA);
         return r;
 }
 
 void rv515_pcie_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
 {
-        WREG32(RADEON_PCIE_INDEX, ((reg) & 0x7ff));
-        (void)RREG32(RADEON_PCIE_INDEX);
-        WREG32(RADEON_PCIE_DATA, (v));
-        (void)RREG32(RADEON_PCIE_DATA);
+        WREG32(PCIE_INDEX, ((reg) & 0x7ff));
+        (void)RREG32(PCIE_INDEX);
+        WREG32(PCIE_DATA, (v));
+        (void)RREG32(PCIE_DATA);
 }
 
 
@@ -452,13 +430,13 @@ static int rv515_debugfs_pipes_info(struct seq_file *m, void *data)
         struct radeon_device *rdev = dev->dev_private;
         uint32_t tmp;
 
-        tmp = RREG32(R400_GB_PIPE_SELECT);
+        tmp = RREG32(GB_PIPE_SELECT);
         seq_printf(m, "GB_PIPE_SELECT 0x%08x\n", tmp);
-        tmp = RREG32(R500_SU_REG_DEST);
+        tmp = RREG32(SU_REG_DEST);
         seq_printf(m, "SU_REG_DEST 0x%08x\n", tmp);
-        tmp = RREG32(R300_GB_TILE_CONFIG);
+        tmp = RREG32(GB_TILE_CONFIG);
         seq_printf(m, "GB_TILE_CONFIG 0x%08x\n", tmp);
-        tmp = RREG32(R300_DST_PIPE_CONFIG);
+        tmp = RREG32(DST_PIPE_CONFIG);
         seq_printf(m, "DST_PIPE_CONFIG 0x%08x\n", tmp);
         return 0;
 }
@@ -509,9 +487,9 @@ int rv515_debugfs_ga_info_init(struct radeon_device *rdev)
 /*
  * Asic initialization
  */
-static const unsigned r500_reg_safe_bm[159] = {
+static const unsigned r500_reg_safe_bm[219] = {
+        0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
         0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
-        0xFFFFFFBF, 0xFFFFFFFF, 0xFFFFFFBF, 0xFFFFFFFF,
         0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
         0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
         0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
@@ -549,14 +527,575 @@ static const unsigned r500_reg_safe_bm[159] = {
         0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
         0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFF80FFFF,
         0x00000000, 0x00000000, 0x00000000, 0x00000000,
-        0x0003FC01, 0x3FFFFCF8, 0xFE800B19,
+        0x0003FC01, 0x3FFFFCF8, 0xFE800B19, 0xFFFFFFFF,
+        0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+        0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+        0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+        0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+        0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+        0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+        0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+        0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+        0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+        0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+        0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+        0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+        0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+        0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+        0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
 };
 
-
-
 int rv515_init(struct radeon_device *rdev)
 {
         rdev->config.r300.reg_safe_bm = r500_reg_safe_bm;
         rdev->config.r300.reg_safe_bm_size = ARRAY_SIZE(r500_reg_safe_bm);
         return 0;
 }
+
+void atom_rv515_force_tv_scaler(struct radeon_device *rdev)
+{
+
+        WREG32(0x659C, 0x0);
+        WREG32(0x6594, 0x705);
+        WREG32(0x65A4, 0x10001);
+        WREG32(0x65D8, 0x0);
+        WREG32(0x65B0, 0x0);
+        WREG32(0x65C0, 0x0);
+        WREG32(0x65D4, 0x0);
+        WREG32(0x6578, 0x0);
+        WREG32(0x657C, 0x841880A8);
+        WREG32(0x6578, 0x1);
+        WREG32(0x657C, 0x84208680);
+        WREG32(0x6578, 0x2);
+        WREG32(0x657C, 0xBFF880B0);
+        WREG32(0x6578, 0x100);
+        WREG32(0x657C, 0x83D88088);
+        WREG32(0x6578, 0x101);
+        WREG32(0x657C, 0x84608680);
+        WREG32(0x6578, 0x102);
+        WREG32(0x657C, 0xBFF080D0);
+        WREG32(0x6578, 0x200);
+        WREG32(0x657C, 0x83988068);
+        WREG32(0x6578, 0x201);
+        WREG32(0x657C, 0x84A08680);
+        WREG32(0x6578, 0x202);
+        WREG32(0x657C, 0xBFF080F8);
+        WREG32(0x6578, 0x300);
+        WREG32(0x657C, 0x83588058);
+        WREG32(0x6578, 0x301);
+        WREG32(0x657C, 0x84E08660);
+        WREG32(0x6578, 0x302);
+        WREG32(0x657C, 0xBFF88120);
+        WREG32(0x6578, 0x400);
+        WREG32(0x657C, 0x83188040);
+        WREG32(0x6578, 0x401);
+        WREG32(0x657C, 0x85008660);
+        WREG32(0x6578, 0x402);
+        WREG32(0x657C, 0xBFF88150);
+        WREG32(0x6578, 0x500);
+        WREG32(0x657C, 0x82D88030);
+        WREG32(0x6578, 0x501);
+        WREG32(0x657C, 0x85408640);
+        WREG32(0x6578, 0x502);
+        WREG32(0x657C, 0xBFF88180);
+        WREG32(0x6578, 0x600);
+        WREG32(0x657C, 0x82A08018);
+        WREG32(0x6578, 0x601);
+        WREG32(0x657C, 0x85808620);
+        WREG32(0x6578, 0x602);
+        WREG32(0x657C, 0xBFF081B8);
+        WREG32(0x6578, 0x700);
+        WREG32(0x657C, 0x82608010);
+        WREG32(0x6578, 0x701);
+        WREG32(0x657C, 0x85A08600);
+        WREG32(0x6578, 0x702);
+        WREG32(0x657C, 0x800081F0);
+        WREG32(0x6578, 0x800);
+        WREG32(0x657C, 0x8228BFF8);
+        WREG32(0x6578, 0x801);
+        WREG32(0x657C, 0x85E085E0);
+        WREG32(0x6578, 0x802);
+        WREG32(0x657C, 0xBFF88228);
+        WREG32(0x6578, 0x10000);
+        WREG32(0x657C, 0x82A8BF00);
+        WREG32(0x6578, 0x10001);
+        WREG32(0x657C, 0x82A08CC0);
+        WREG32(0x6578, 0x10002);
+        WREG32(0x657C, 0x8008BEF8);
+        WREG32(0x6578, 0x10100);
+        WREG32(0x657C, 0x81F0BF28);
+        WREG32(0x6578, 0x10101);
+        WREG32(0x657C, 0x83608CA0);
+        WREG32(0x6578, 0x10102);
+        WREG32(0x657C, 0x8018BED0);
+        WREG32(0x6578, 0x10200);
+        WREG32(0x657C, 0x8148BF38);
+        WREG32(0x6578, 0x10201);
+        WREG32(0x657C, 0x84408C80);
+        WREG32(0x6578, 0x10202);
+        WREG32(0x657C, 0x8008BEB8);
+        WREG32(0x6578, 0x10300);
+        WREG32(0x657C, 0x80B0BF78);
+        WREG32(0x6578, 0x10301);
+        WREG32(0x657C, 0x85008C20);
+        WREG32(0x6578, 0x10302);
+        WREG32(0x657C, 0x8020BEA0);
+        WREG32(0x6578, 0x10400);
+        WREG32(0x657C, 0x8028BF90);
+        WREG32(0x6578, 0x10401);
+        WREG32(0x657C, 0x85E08BC0);
+        WREG32(0x6578, 0x10402);
+        WREG32(0x657C, 0x8018BE90);
+        WREG32(0x6578, 0x10500);
+        WREG32(0x657C, 0xBFB8BFB0);
+        WREG32(0x6578, 0x10501);
+        WREG32(0x657C, 0x86C08B40);
+        WREG32(0x6578, 0x10502);
+        WREG32(0x657C, 0x8010BE90);
+        WREG32(0x6578, 0x10600);
+        WREG32(0x657C, 0xBF58BFC8);
+        WREG32(0x6578, 0x10601);
+        WREG32(0x657C, 0x87A08AA0);
+        WREG32(0x6578, 0x10602);
+        WREG32(0x657C, 0x8010BE98);
+        WREG32(0x6578, 0x10700);
+        WREG32(0x657C, 0xBF10BFF0);
+        WREG32(0x6578, 0x10701);
+        WREG32(0x657C, 0x886089E0);
+        WREG32(0x6578, 0x10702);
+        WREG32(0x657C, 0x8018BEB0);
+        WREG32(0x6578, 0x10800);
+        WREG32(0x657C, 0xBED8BFE8);
+        WREG32(0x6578, 0x10801);
+        WREG32(0x657C, 0x89408940);
+        WREG32(0x6578, 0x10802);
+        WREG32(0x657C, 0xBFE8BED8);
+        WREG32(0x6578, 0x20000);
+        WREG32(0x657C, 0x80008000);
+        WREG32(0x6578, 0x20001);
+        WREG32(0x657C, 0x90008000);
+        WREG32(0x6578, 0x20002);
+        WREG32(0x657C, 0x80008000);
+        WREG32(0x6578, 0x20003);
+        WREG32(0x657C, 0x80008000);
+        WREG32(0x6578, 0x20100);
+        WREG32(0x657C, 0x80108000);
+        WREG32(0x6578, 0x20101);
+        WREG32(0x657C, 0x8FE0BF70);
+        WREG32(0x6578, 0x20102);
+        WREG32(0x657C, 0xBFE880C0);
+        WREG32(0x6578, 0x20103);
+        WREG32(0x657C, 0x80008000);
+        WREG32(0x6578, 0x20200);
+        WREG32(0x657C, 0x8018BFF8);
+        WREG32(0x6578, 0x20201);
+        WREG32(0x657C, 0x8F80BF08);
+        WREG32(0x6578, 0x20202);
+        WREG32(0x657C, 0xBFD081A0);
+        WREG32(0x6578, 0x20203);
+        WREG32(0x657C, 0xBFF88000);
+        WREG32(0x6578, 0x20300);
+        WREG32(0x657C, 0x80188000);
+        WREG32(0x6578, 0x20301);
+        WREG32(0x657C, 0x8EE0BEC0);
+        WREG32(0x6578, 0x20302);
+        WREG32(0x657C, 0xBFB082A0);
+        WREG32(0x6578, 0x20303);
+        WREG32(0x657C, 0x80008000);
+        WREG32(0x6578, 0x20400);
+        WREG32(0x657C, 0x80188000);
+        WREG32(0x6578, 0x20401);
+        WREG32(0x657C, 0x8E00BEA0);
+        WREG32(0x6578, 0x20402);
+        WREG32(0x657C, 0xBF8883C0);
+        WREG32(0x6578, 0x20403);
+        WREG32(0x657C, 0x80008000);
+        WREG32(0x6578, 0x20500);
+        WREG32(0x657C, 0x80188000);
+        WREG32(0x6578, 0x20501);
+        WREG32(0x657C, 0x8D00BE90);
+        WREG32(0x6578, 0x20502);
+        WREG32(0x657C, 0xBF588500);
+        WREG32(0x6578, 0x20503);
+        WREG32(0x657C, 0x80008008);
+        WREG32(0x6578, 0x20600);
+        WREG32(0x657C, 0x80188000);
+        WREG32(0x6578, 0x20601);
+        WREG32(0x657C, 0x8BC0BE98);
+        WREG32(0x6578, 0x20602);
+        WREG32(0x657C, 0xBF308660);
+        WREG32(0x6578, 0x20603);
+        WREG32(0x657C, 0x80008008);
+        WREG32(0x6578, 0x20700);
+        WREG32(0x657C, 0x80108000);
+        WREG32(0x6578, 0x20701);
+        WREG32(0x657C, 0x8A80BEB0);
+        WREG32(0x6578, 0x20702);
+        WREG32(0x657C, 0xBF0087C0);
+        WREG32(0x6578, 0x20703);
+        WREG32(0x657C, 0x80008008);
+        WREG32(0x6578, 0x20800);
+        WREG32(0x657C, 0x80108000);
+        WREG32(0x6578, 0x20801);
+        WREG32(0x657C, 0x8920BED0);
+        WREG32(0x6578, 0x20802);
+        WREG32(0x657C, 0xBED08920);
+        WREG32(0x6578, 0x20803);
+        WREG32(0x657C, 0x80008010);
+        WREG32(0x6578, 0x30000);
+        WREG32(0x657C, 0x90008000);
+        WREG32(0x6578, 0x30001);
+        WREG32(0x657C, 0x80008000);
+        WREG32(0x6578, 0x30100);
+        WREG32(0x657C, 0x8FE0BF90);
+        WREG32(0x6578, 0x30101);
+        WREG32(0x657C, 0xBFF880A0);
+        WREG32(0x6578, 0x30200);
+        WREG32(0x657C, 0x8F60BF40);
+        WREG32(0x6578, 0x30201);
+        WREG32(0x657C, 0xBFE88180);
+        WREG32(0x6578, 0x30300);
+        WREG32(0x657C, 0x8EC0BF00);
+        WREG32(0x6578, 0x30301);
+        WREG32(0x657C, 0xBFC88280);
+        WREG32(0x6578, 0x30400);
+        WREG32(0x657C, 0x8DE0BEE0);
+        WREG32(0x6578, 0x30401);
+        WREG32(0x657C, 0xBFA083A0);
+        WREG32(0x6578, 0x30500);
+        WREG32(0x657C, 0x8CE0BED0);
+        WREG32(0x6578, 0x30501);
+        WREG32(0x657C, 0xBF7884E0);
+        WREG32(0x6578, 0x30600);
+        WREG32(0x657C, 0x8BA0BED8);
+        WREG32(0x6578, 0x30601);
+        WREG32(0x657C, 0xBF508640);
+        WREG32(0x6578, 0x30700);
+        WREG32(0x657C, 0x8A60BEE8);
+        WREG32(0x6578, 0x30701);
+        WREG32(0x657C, 0xBF2087A0);
+        WREG32(0x6578, 0x30800);
+        WREG32(0x657C, 0x8900BF00);
+        WREG32(0x6578, 0x30801);
+        WREG32(0x657C, 0xBF008900);
+}
+
+struct rv515_watermark {
+        u32        lb_request_fifo_depth;
+        fixed20_12 num_line_pair;
+        fixed20_12 estimated_width;
+        fixed20_12 worst_case_latency;
+        fixed20_12 consumption_rate;
+        fixed20_12 active_time;
+        fixed20_12 dbpp;
+        fixed20_12 priority_mark_max;
+        fixed20_12 priority_mark;
+        fixed20_12 sclk;
+};
+
+void rv515_crtc_bandwidth_compute(struct radeon_device *rdev,
+                                  struct radeon_crtc *crtc,
+                                  struct rv515_watermark *wm)
+{
+        struct drm_display_mode *mode = &crtc->base.mode;
+        fixed20_12 a, b, c;
+        fixed20_12 pclk, request_fifo_depth, tolerable_latency, estimated_width;
+        fixed20_12 consumption_time, line_time, chunk_time, read_delay_latency;
+
+        if (!crtc->base.enabled) {
+                /* FIXME: wouldn't it better to set priority mark to maximum */
+                wm->lb_request_fifo_depth = 4;
+                return;
+        }
+
+        if (crtc->vsc.full > rfixed_const(2))
+                wm->num_line_pair.full = rfixed_const(2);
+        else
+                wm->num_line_pair.full = rfixed_const(1);
+
+        b.full = rfixed_const(mode->crtc_hdisplay);
+        c.full = rfixed_const(256);
+        a.full = rfixed_mul(wm->num_line_pair, b);
+        request_fifo_depth.full = rfixed_div(a, c);
+        if (a.full < rfixed_const(4)) {
+                wm->lb_request_fifo_depth = 4;
+        } else {
+                wm->lb_request_fifo_depth = rfixed_trunc(request_fifo_depth);
+        }
+
+        /* Determine consumption rate
+         *  pclk = pixel clock period(ns) = 1000 / (mode.clock / 1000)
+         *  vtaps = number of vertical taps,
+         *  vsc = vertical scaling ratio, defined as source/destination
+         *  hsc = horizontal scaling ration, defined as source/destination
+         */
+        a.full = rfixed_const(mode->clock);
+        b.full = rfixed_const(1000);
+        a.full = rfixed_div(a, b);
+        pclk.full = rfixed_div(b, a);
+        if (crtc->rmx_type != RMX_OFF) {
+                b.full = rfixed_const(2);
+                if (crtc->vsc.full > b.full)
+                        b.full = crtc->vsc.full;
+                b.full = rfixed_mul(b, crtc->hsc);
+                c.full = rfixed_const(2);
+                b.full = rfixed_div(b, c);
+                consumption_time.full = rfixed_div(pclk, b);
+        } else {
+                consumption_time.full = pclk.full;
+        }
+        a.full = rfixed_const(1);
+        wm->consumption_rate.full = rfixed_div(a, consumption_time);
+
+
+        /* Determine line time
+         *  LineTime = total time for one line of displayhtotal
+         *  LineTime = total number of horizontal pixels
+         *  pclk = pixel clock period(ns)
+         */
+        a.full = rfixed_const(crtc->base.mode.crtc_htotal);
+        line_time.full = rfixed_mul(a, pclk);
+
+        /* Determine active time
+         *  ActiveTime = time of active region of display within one line,
+         *  hactive = total number of horizontal active pixels
+         *  htotal = total number of horizontal pixels
+         */
+        a.full = rfixed_const(crtc->base.mode.crtc_htotal);
+        b.full = rfixed_const(crtc->base.mode.crtc_hdisplay);
+        wm->active_time.full = rfixed_mul(line_time, b);
+        wm->active_time.full = rfixed_div(wm->active_time, a);
+
+        /* Determine chunk time
+         * ChunkTime = the time it takes the DCP to send one chunk of data
+         * to the LB which consists of pipeline delay and inter chunk gap
+         * sclk = system clock(Mhz)
+         */
+        a.full = rfixed_const(600 * 1000);
+        chunk_time.full = rfixed_div(a, rdev->pm.sclk);
+        read_delay_latency.full = rfixed_const(1000);
+
+        /* Determine the worst case latency
+         * NumLinePair = Number of line pairs to request(1=2 lines, 2=4 lines)
+         * WorstCaseLatency = worst case time from urgent to when the MC starts
+         *                    to return data
+         * READ_DELAY_IDLE_MAX = constant of 1us
+         * ChunkTime = time it takes the DCP to send one chunk of data to the LB
+         *             which consists of pipeline delay and inter chunk gap
+         */
+        if (rfixed_trunc(wm->num_line_pair) > 1) {
+                a.full = rfixed_const(3);
+                wm->worst_case_latency.full = rfixed_mul(a, chunk_time);
+                wm->worst_case_latency.full += read_delay_latency.full;
+        } else {
+                wm->worst_case_latency.full = chunk_time.full + read_delay_latency.full;
+        }
+
+        /* Determine the tolerable latency
+         * TolerableLatency = Any given request has only 1 line time
+         *                    for the data to be returned
+         * LBRequestFifoDepth = Number of chunk requests the LB can
+         *                      put into the request FIFO for a display
+         *  LineTime = total time for one line of display
+         *  ChunkTime = the time it takes the DCP to send one chunk
+         *              of data to the LB which consists of
+         *  pipeline delay and inter chunk gap
+         */
+        if ((2+wm->lb_request_fifo_depth) >= rfixed_trunc(request_fifo_depth)) {
+                tolerable_latency.full = line_time.full;
+        } else {
+                tolerable_latency.full = rfixed_const(wm->lb_request_fifo_depth - 2);
+                tolerable_latency.full = request_fifo_depth.full - tolerable_latency.full;
+                tolerable_latency.full = rfixed_mul(tolerable_latency, chunk_time);
+                tolerable_latency.full = line_time.full - tolerable_latency.full;
+        }
+        /* We assume worst case 32bits (4 bytes) */
+        wm->dbpp.full = rfixed_const(2 * 16);
+
+        /* Determine the maximum priority mark
+         *  width = viewport width in pixels
+         */
+        a.full = rfixed_const(16);
+        wm->priority_mark_max.full = rfixed_const(crtc->base.mode.crtc_hdisplay);
+        wm->priority_mark_max.full = rfixed_div(wm->priority_mark_max, a);
+
+        /* Determine estimated width */
+        estimated_width.full = tolerable_latency.full - wm->worst_case_latency.full;
+        estimated_width.full = rfixed_div(estimated_width, consumption_time);
+        if (rfixed_trunc(estimated_width) > crtc->base.mode.crtc_hdisplay) {
+                wm->priority_mark.full = rfixed_const(10);
+        } else {
+                a.full = rfixed_const(16);
+                wm->priority_mark.full = rfixed_div(estimated_width, a);
+                wm->priority_mark.full = wm->priority_mark_max.full - wm->priority_mark.full;
+        }
+}
+
+void rv515_bandwidth_avivo_update(struct radeon_device *rdev)
+{
+        struct drm_display_mode *mode0 = NULL;
+        struct drm_display_mode *mode1 = NULL;
+        struct rv515_watermark wm0;
+        struct rv515_watermark wm1;
+        u32 tmp;
+        fixed20_12 priority_mark02, priority_mark12, fill_rate;
+        fixed20_12 a, b;
+
+        if (rdev->mode_info.crtcs[0]->base.enabled)
+                mode0 = &rdev->mode_info.crtcs[0]->base.mode;
+        if (rdev->mode_info.crtcs[1]->base.enabled)
+                mode1 = &rdev->mode_info.crtcs[1]->base.mode;
+        rs690_line_buffer_adjust(rdev, mode0, mode1);
+
+        rv515_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0);
+        rv515_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1);
+
+        tmp = wm0.lb_request_fifo_depth;
+        tmp |= wm1.lb_request_fifo_depth << 16;
+        WREG32(LB_MAX_REQ_OUTSTANDING, tmp);
+
+        if (mode0 && mode1) {
+                if (rfixed_trunc(wm0.dbpp) > 64)
+                        a.full = rfixed_div(wm0.dbpp, wm0.num_line_pair);
+                else
+                        a.full = wm0.num_line_pair.full;
+                if (rfixed_trunc(wm1.dbpp) > 64)
+                        b.full = rfixed_div(wm1.dbpp, wm1.num_line_pair);
+                else
+                        b.full = wm1.num_line_pair.full;
+                a.full += b.full;
+                fill_rate.full = rfixed_div(wm0.sclk, a);
+                if (wm0.consumption_rate.full > fill_rate.full) {
+                        b.full = wm0.consumption_rate.full - fill_rate.full;
+                        b.full = rfixed_mul(b, wm0.active_time);
+                        a.full = rfixed_const(16);
+                        b.full = rfixed_div(b, a);
+                        a.full = rfixed_mul(wm0.worst_case_latency,
+                                                wm0.consumption_rate);
+                        priority_mark02.full = a.full + b.full;
+                } else {
+                        a.full = rfixed_mul(wm0.worst_case_latency,
+                                                wm0.consumption_rate);
+                        b.full = rfixed_const(16 * 1000);
+                        priority_mark02.full = rfixed_div(a, b);
+                }
+                if (wm1.consumption_rate.full > fill_rate.full) {
+                        b.full = wm1.consumption_rate.full - fill_rate.full;
+                        b.full = rfixed_mul(b, wm1.active_time);
+                        a.full = rfixed_const(16);
+                        b.full = rfixed_div(b, a);
+                        a.full = rfixed_mul(wm1.worst_case_latency,
+                                                wm1.consumption_rate);
+                        priority_mark12.full = a.full + b.full;
+                } else {
+                        a.full = rfixed_mul(wm1.worst_case_latency,
+                                                wm1.consumption_rate);
+                        b.full = rfixed_const(16 * 1000);
+                        priority_mark12.full = rfixed_div(a, b);
+                }
+                if (wm0.priority_mark.full > priority_mark02.full)
+                        priority_mark02.full = wm0.priority_mark.full;
+                if (rfixed_trunc(priority_mark02) < 0)
+                        priority_mark02.full = 0;
+                if (wm0.priority_mark_max.full > priority_mark02.full)
+                        priority_mark02.full = wm0.priority_mark_max.full;
+                if (wm1.priority_mark.full > priority_mark12.full)
+                        priority_mark12.full = wm1.priority_mark.full;
+                if (rfixed_trunc(priority_mark12) < 0)
+                        priority_mark12.full = 0;
+                if (wm1.priority_mark_max.full > priority_mark12.full)
+                        priority_mark12.full = wm1.priority_mark_max.full;
+                WREG32(D1MODE_PRIORITY_A_CNT, rfixed_trunc(priority_mark02));
+                WREG32(D1MODE_PRIORITY_B_CNT, rfixed_trunc(priority_mark02));
+                WREG32(D2MODE_PRIORITY_A_CNT, rfixed_trunc(priority_mark12));
+                WREG32(D2MODE_PRIORITY_B_CNT, rfixed_trunc(priority_mark12));
+        } else if (mode0) {
+                if (rfixed_trunc(wm0.dbpp) > 64)
+                        a.full = rfixed_div(wm0.dbpp, wm0.num_line_pair);
+                else
+                        a.full = wm0.num_line_pair.full;
+                fill_rate.full = rfixed_div(wm0.sclk, a);
+                if (wm0.consumption_rate.full > fill_rate.full) {
+                        b.full = wm0.consumption_rate.full - fill_rate.full;
+                        b.full = rfixed_mul(b, wm0.active_time);
+                        a.full = rfixed_const(16);
+                        b.full = rfixed_div(b, a);
+                        a.full = rfixed_mul(wm0.worst_case_latency,
+                                                wm0.consumption_rate);
+                        priority_mark02.full = a.full + b.full;
+                } else {
+                        a.full = rfixed_mul(wm0.worst_case_latency,
+                                                wm0.consumption_rate);
+                        b.full = rfixed_const(16);
+                        priority_mark02.full = rfixed_div(a, b);
+                }
+                if (wm0.priority_mark.full > priority_mark02.full)
+                        priority_mark02.full = wm0.priority_mark.full;
+                if (rfixed_trunc(priority_mark02) < 0)
+                        priority_mark02.full = 0;
+                if (wm0.priority_mark_max.full > priority_mark02.full)
+                        priority_mark02.full = wm0.priority_mark_max.full;
+                WREG32(D1MODE_PRIORITY_A_CNT, rfixed_trunc(priority_mark02));
+                WREG32(D1MODE_PRIORITY_B_CNT, rfixed_trunc(priority_mark02));
+                WREG32(D2MODE_PRIORITY_A_CNT, MODE_PRIORITY_OFF);
+                WREG32(D2MODE_PRIORITY_B_CNT, MODE_PRIORITY_OFF);
+        } else {
+                if (rfixed_trunc(wm1.dbpp) > 64)
+                        a.full = rfixed_div(wm1.dbpp, wm1.num_line_pair);
+                else
+                        a.full = wm1.num_line_pair.full;
+                fill_rate.full = rfixed_div(wm1.sclk, a);
+                if (wm1.consumption_rate.full > fill_rate.full) {
+                        b.full = wm1.consumption_rate.full - fill_rate.full;
+                        b.full = rfixed_mul(b, wm1.active_time);
+                        a.full = rfixed_const(16);
+                        b.full = rfixed_div(b, a);
+                        a.full = rfixed_mul(wm1.worst_case_latency,
+                                                wm1.consumption_rate);
+                        priority_mark12.full = a.full + b.full;
+                } else {
+                        a.full = rfixed_mul(wm1.worst_case_latency,
+                                                wm1.consumption_rate);
+                        b.full = rfixed_const(16 * 1000);
+                        priority_mark12.full = rfixed_div(a, b);
+                }
+                if (wm1.priority_mark.full > priority_mark12.full)
+                        priority_mark12.full = wm1.priority_mark.full;
+                if (rfixed_trunc(priority_mark12) < 0)
+                        priority_mark12.full = 0;
+                if (wm1.priority_mark_max.full > priority_mark12.full)
+                        priority_mark12.full = wm1.priority_mark_max.full;
+                WREG32(D1MODE_PRIORITY_A_CNT, MODE_PRIORITY_OFF);
+                WREG32(D1MODE_PRIORITY_B_CNT, MODE_PRIORITY_OFF);
+                WREG32(D2MODE_PRIORITY_A_CNT, rfixed_trunc(priority_mark12));
+                WREG32(D2MODE_PRIORITY_B_CNT, rfixed_trunc(priority_mark12));
+        }
+}
+
+void rv515_bandwidth_update(struct radeon_device *rdev)
+{
+        uint32_t tmp;
+        struct drm_display_mode *mode0 = NULL;
+        struct drm_display_mode *mode1 = NULL;
+
+        if (rdev->mode_info.crtcs[0]->base.enabled)
+                mode0 = &rdev->mode_info.crtcs[0]->base.mode;
+        if (rdev->mode_info.crtcs[1]->base.enabled)
+                mode1 = &rdev->mode_info.crtcs[1]->base.mode;
+        /*
+         * Set display0/1 priority up in the memory controller for
+         * modes if the user specifies HIGH for displaypriority
+         * option.
+         */
+        if (rdev->disp_priority == 2) {
+                tmp = RREG32_MC(MC_MISC_LAT_TIMER);
+                tmp &= ~MC_DISP1R_INIT_LAT_MASK;
+                tmp &= ~MC_DISP0R_INIT_LAT_MASK;
+                if (mode1)
+                        tmp |= (1 << MC_DISP1R_INIT_LAT_SHIFT);
+                if (mode0)
+                        tmp |= (1 << MC_DISP0R_INIT_LAT_SHIFT);
+                WREG32_MC(MC_MISC_LAT_TIMER, tmp);
+        }
+        rv515_bandwidth_avivo_update(rdev);
+}
diff --git a/drivers/gpu/drm/radeon/rv515r.h b/drivers/gpu/drm/radeon/rv515r.h
new file mode 100644
index 000000000000..f3cf84039906
--- /dev/null
+++ b/drivers/gpu/drm/radeon/rv515r.h
@@ -0,0 +1,170 @@
+/*
+ * Copyright 2008 Advanced Micro Devices, Inc.
+ * Copyright 2008 Red Hat Inc.
+ * Copyright 2009 Jerome Glisse.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Dave Airlie
+ *          Alex Deucher
+ *          Jerome Glisse
+ */
+#ifndef RV515R_H
+#define RV515R_H
+
+/* RV515 registers */
+#define PCIE_INDEX                      0x0030
+#define PCIE_DATA                       0x0034
+#define MC_IND_INDEX                    0x0070
+#define         MC_IND_WR_EN                            (1 << 24)
+#define MC_IND_DATA                     0x0074
+#define RBBM_SOFT_RESET                 0x00F0
+#define CONFIG_MEMSIZE                  0x00F8
+#define HDP_FB_LOCATION                 0x0134
+#define CP_CSQ_CNTL                     0x0740
+#define CP_CSQ_MODE                     0x0744
+#define CP_CSQ_ADDR                     0x07F0
+#define CP_CSQ_DATA                     0x07F4
+#define CP_CSQ_STAT                     0x07F8
+#define CP_CSQ2_STAT                    0x07FC
+#define RBBM_STATUS                     0x0E40
+#define DST_PIPE_CONFIG                 0x170C
+#define WAIT_UNTIL                      0x1720
+#define         WAIT_2D_IDLE                            (1 << 14)
+#define         WAIT_3D_IDLE                            (1 << 15)
+#define         WAIT_2D_IDLECLEAN                       (1 << 16)
+#define         WAIT_3D_IDLECLEAN                       (1 << 17)
+#define ISYNC_CNTL                      0x1724
+#define         ISYNC_ANY2D_IDLE3D                      (1 << 0)
+#define         ISYNC_ANY3D_IDLE2D                      (1 << 1)
+#define         ISYNC_TRIG2D_IDLE3D                     (1 << 2)
+#define         ISYNC_TRIG3D_IDLE2D                     (1 << 3)
+#define         ISYNC_WAIT_IDLEGUI                      (1 << 4)
+#define         ISYNC_CPSCRATCH_IDLEGUI                 (1 << 5)
+#define VAP_INDEX_OFFSET                0x208C
+#define VAP_PVS_STATE_FLUSH_REG         0x2284
+#define GB_ENABLE                       0x4008
+#define GB_MSPOS0                       0x4010
+#define         MS_X0_SHIFT                             0
+#define         MS_Y0_SHIFT                             4
+#define         MS_X1_SHIFT                             8
+#define         MS_Y1_SHIFT                             12
+#define         MS_X2_SHIFT                             16
+#define         MS_Y2_SHIFT                             20
+#define         MSBD0_Y_SHIFT                           24
+#define         MSBD0_X_SHIFT                           28
+#define GB_MSPOS1                       0x4014
+#define         MS_X3_SHIFT                             0
+#define         MS_Y3_SHIFT                             4
+#define         MS_X4_SHIFT                             8
+#define         MS_Y4_SHIFT                             12
+#define         MS_X5_SHIFT                             16
+#define         MS_Y5_SHIFT                             20
+#define         MSBD1_SHIFT                             24
+#define GB_TILE_CONFIG                  0x4018
+#define         ENABLE_TILING                           (1 << 0)
+#define         PIPE_COUNT_MASK                         0x0000000E
+#define         PIPE_COUNT_SHIFT                        1
+#define         TILE_SIZE_8                             (0 << 4)
+#define         TILE_SIZE_16                            (1 << 4)
+#define         TILE_SIZE_32                            (2 << 4)
+#define         SUBPIXEL_1_12                           (0 << 16)
+#define         SUBPIXEL_1_16                           (1 << 16)
+#define GB_SELECT                       0x401C
+#define GB_AA_CONFIG                    0x4020
+#define GB_PIPE_SELECT                  0x402C
+#define GA_ENHANCE                      0x4274
+#define         GA_DEADLOCK_CNTL                        (1 << 0)
+#define         GA_FASTSYNC_CNTL                        (1 << 1)
+#define GA_POLY_MODE                    0x4288
+#define         FRONT_PTYPE_POINT                       (0 << 4)
+#define         FRONT_PTYPE_LINE                        (1 << 4)
+#define         FRONT_PTYPE_TRIANGE                     (2 << 4)
+#define         BACK_PTYPE_POINT                        (0 << 7)
+#define         BACK_PTYPE_LINE                         (1 << 7)
+#define         BACK_PTYPE_TRIANGE                      (2 << 7)
+#define GA_ROUND_MODE                   0x428C
+#define         GEOMETRY_ROUND_TRUNC                    (0 << 0)
+#define         GEOMETRY_ROUND_NEAREST                  (1 << 0)
+#define         COLOR_ROUND_TRUNC                       (0 << 2)
+#define         COLOR_ROUND_NEAREST                     (1 << 2)
+#define SU_REG_DEST                     0x42C8
+#define RB3D_DSTCACHE_CTLSTAT           0x4E4C
+#define         RB3D_DC_FLUSH                           (2 << 0)
+#define         RB3D_DC_FREE                            (2 << 2)
+#define         RB3D_DC_FINISH                          (1 << 4)
+#define ZB_ZCACHE_CTLSTAT               0x4F18
+#define         ZC_FLUSH                                (1 << 0)
+#define         ZC_FREE                                 (1 << 1)
+#define DC_LB_MEMORY_SPLIT              0x6520
+#define         DC_LB_MEMORY_SPLIT_MASK                 0x00000003
+#define         DC_LB_MEMORY_SPLIT_SHIFT                0
+#define         DC_LB_MEMORY_SPLIT_D1HALF_D2HALF        0
+#define         DC_LB_MEMORY_SPLIT_D1_3Q_D2_1Q          1
+#define         DC_LB_MEMORY_SPLIT_D1_ONLY              2
+#define         DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q          3
+#define         DC_LB_MEMORY_SPLIT_SHIFT_MODE           (1 << 2)
+#define         DC_LB_DISP1_END_ADR_SHIFT               4
+#define         DC_LB_DISP1_END_ADR_MASK                0x00007FF0
+#define D1MODE_PRIORITY_A_CNT           0x6548
+#define         MODE_PRIORITY_MARK_MASK                 0x00007FFF
+#define         MODE_PRIORITY_OFF                       (1 << 16)
+#define         MODE_PRIORITY_ALWAYS_ON                 (1 << 20)
+#define         MODE_PRIORITY_FORCE_MASK                (1 << 24)
+#define D1MODE_PRIORITY_B_CNT           0x654C
+#define LB_MAX_REQ_OUTSTANDING          0x6D58
+#define         LB_D1_MAX_REQ_OUTSTANDING_MASK          0x0000000F
+#define         LB_D1_MAX_REQ_OUTSTANDING_SHIFT         0
+#define         LB_D2_MAX_REQ_OUTSTANDING_MASK          0x000F0000
+#define         LB_D2_MAX_REQ_OUTSTANDING_SHIFT         16
+#define D2MODE_PRIORITY_A_CNT           0x6D48
+#define D2MODE_PRIORITY_B_CNT           0x6D4C
+
+/* ix[MC] registers */
+#define MC_FB_LOCATION                  0x01
+#define         MC_FB_START_MASK                        0x0000FFFF
+#define         MC_FB_START_SHIFT                       0
+#define         MC_FB_TOP_MASK                          0xFFFF0000
+#define         MC_FB_TOP_SHIFT                         16
+#define MC_AGP_LOCATION                 0x02
+#define         MC_AGP_START_MASK                       0x0000FFFF
+#define         MC_AGP_START_SHIFT                      0
+#define         MC_AGP_TOP_MASK                         0xFFFF0000
+#define         MC_AGP_TOP_SHIFT                        16
+#define MC_AGP_BASE                     0x03
+#define MC_AGP_BASE_2                   0x04
+#define MC_CNTL                         0x5
+#define         MEM_NUM_CHANNELS_MASK                   0x00000003
+#define MC_STATUS                       0x08
+#define         MC_STATUS_IDLE                          (1 << 4)
+#define MC_MISC_LAT_TIMER               0x09
+#define         MC_CPR_INIT_LAT_MASK                    0x0000000F
+#define         MC_VF_INIT_LAT_MASK                     0x000000F0
+#define         MC_DISP0R_INIT_LAT_MASK                 0x00000F00
+#define         MC_DISP0R_INIT_LAT_SHIFT                8
+#define         MC_DISP1R_INIT_LAT_MASK                 0x0000F000
+#define         MC_DISP1R_INIT_LAT_SHIFT                12
+#define         MC_FIXED_INIT_LAT_MASK                  0x000F0000
+#define         MC_E2R_INIT_LAT_MASK                    0x00F00000
+#define         SAME_PAGE_PRIO_MASK                     0x0F000000
+#define         MC_GLOBW_INIT_LAT_MASK                  0xF0000000
+
+
+#endif
+
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index da50cc51ede3..21d8ffd57308 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -67,7 +67,7 @@ int rv770_mc_init(struct radeon_device *rdev)
                        "programming pipes. Bad things might happen.\n");
         }
 
-        tmp = rdev->mc.vram_location + rdev->mc.vram_size - 1;
+        tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
         tmp = REG_SET(R700_MC_FB_TOP, tmp >> 24);
         tmp |= REG_SET(R700_MC_FB_BASE, rdev->mc.vram_location >> 24);
         WREG32(R700_MC_VM_FB_LOCATION, tmp);
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index c1c407f7cca3..c2b0d710d10f 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -43,7 +43,6 @@
 #define TTM_BO_HASH_ORDER 13
 
 static int ttm_bo_setup_vm(struct ttm_buffer_object *bo);
-static void ttm_bo_unmap_virtual(struct ttm_buffer_object *bo);
 static int ttm_bo_swapout(struct ttm_mem_shrink *shrink);
 
 static inline uint32_t ttm_bo_type_flags(unsigned type)
@@ -224,6 +223,9 @@ static int ttm_bo_add_ttm(struct ttm_buffer_object *bo, bool zero_alloc)
         TTM_ASSERT_LOCKED(&bo->mutex);
         bo->ttm = NULL;
 
+        if (bdev->need_dma32)
+                page_flags |= TTM_PAGE_FLAG_DMA32;
+
         switch (bo->type) {
         case ttm_bo_type_device:
                 if (zero_alloc)
@@ -304,6 +306,9 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
 
         }
 
+        if (bdev->driver->move_notify)
+                bdev->driver->move_notify(bo, mem);
+
         if (!(old_man->flags & TTM_MEMTYPE_FLAG_FIXED) &&
             !(new_man->flags & TTM_MEMTYPE_FLAG_FIXED))
                 ret = ttm_bo_move_ttm(bo, evict, no_wait, mem);
@@ -655,31 +660,52 @@ retry_pre_get:
         return 0;
 }
 
+static uint32_t ttm_bo_select_caching(struct ttm_mem_type_manager *man,
+                                      uint32_t cur_placement,
+                                      uint32_t proposed_placement)
+{
+        uint32_t caching = proposed_placement & TTM_PL_MASK_CACHING;
+        uint32_t result = proposed_placement & ~TTM_PL_MASK_CACHING;
+
+        /**
+         * Keep current caching if possible.
+         */
+
+        if ((cur_placement & caching) != 0)
+                result |= (cur_placement & caching);
+        else if ((man->default_caching & caching) != 0)
+                result |= man->default_caching;
+        else if ((TTM_PL_FLAG_CACHED & caching) != 0)
+                result |= TTM_PL_FLAG_CACHED;
+        else if ((TTM_PL_FLAG_WC & caching) != 0)
+                result |= TTM_PL_FLAG_WC;
+        else if ((TTM_PL_FLAG_UNCACHED & caching) != 0)
+                result |= TTM_PL_FLAG_UNCACHED;
+
+        return result;
+}
+
+
 static bool ttm_bo_mt_compatible(struct ttm_mem_type_manager *man,
                                  bool disallow_fixed,
                                  uint32_t mem_type,
-                                 uint32_t mask, uint32_t *res_mask)
+                                 uint32_t proposed_placement,
+                                 uint32_t *masked_placement)
 {
         uint32_t cur_flags = ttm_bo_type_flags(mem_type);
 
         if ((man->flags & TTM_MEMTYPE_FLAG_FIXED) && disallow_fixed)
                 return false;
 
-        if ((cur_flags & mask & TTM_PL_MASK_MEM) == 0)
+        if ((cur_flags & proposed_placement & TTM_PL_MASK_MEM) == 0)
                 return false;
 
-        if ((mask & man->available_caching) == 0)
+        if ((proposed_placement & man->available_caching) == 0)
                 return false;
-        if (mask & man->default_caching)
-                cur_flags |= man->default_caching;
-        else if (mask & TTM_PL_FLAG_CACHED)
-                cur_flags |= TTM_PL_FLAG_CACHED;
-        else if (mask & TTM_PL_FLAG_WC)
-                cur_flags |= TTM_PL_FLAG_WC;
-        else
-                cur_flags |= TTM_PL_FLAG_UNCACHED;
 
-        *res_mask = cur_flags;
+        cur_flags |= (proposed_placement & man->available_caching);
+
+        *masked_placement = cur_flags;
         return true;
 }
 
@@ -723,6 +749,9 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
                 if (!type_ok)
                         continue;
 
+                cur_flags = ttm_bo_select_caching(man, bo->mem.placement,
+                                                  cur_flags);
+
                 if (mem_type == TTM_PL_SYSTEM)
                         break;
 
@@ -779,6 +808,9 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
                                           proposed_placement, &cur_flags))
                         continue;
 
+                cur_flags = ttm_bo_select_caching(man, bo->mem.placement,
+                                                  cur_flags);
+
                 ret = ttm_bo_mem_force_space(bdev, mem, mem_type,
                                              interruptible, no_wait);
 
@@ -1150,13 +1182,14 @@ static int ttm_bo_force_list_clean(struct ttm_bo_device *bdev,
 
 int ttm_bo_clean_mm(struct ttm_bo_device *bdev, unsigned mem_type)
 {
-        struct ttm_mem_type_manager *man = &bdev->man[mem_type];
+        struct ttm_mem_type_manager *man;
         int ret = -EINVAL;
 
         if (mem_type >= TTM_NUM_MEM_TYPES) {
                 printk(KERN_ERR TTM_PFX "Illegal memory type %d\n", mem_type);
                 return ret;
         }
+        man = &bdev->man[mem_type];
 
         if (!man->has_type) {
                 printk(KERN_ERR TTM_PFX "Trying to take down uninitialized "
@@ -1305,7 +1338,8 @@ EXPORT_SYMBOL(ttm_bo_device_release);
 
 int ttm_bo_device_init(struct ttm_bo_device *bdev,
                        struct ttm_mem_global *mem_glob,
-                       struct ttm_bo_driver *driver, uint64_t file_page_offset)
+                       struct ttm_bo_driver *driver, uint64_t file_page_offset,
+                       bool need_dma32)
 {
         int ret = -EINVAL;
 
@@ -1342,6 +1376,7 @@ int ttm_bo_device_init(struct ttm_bo_device *bdev,
         INIT_LIST_HEAD(&bdev->ddestroy);
         INIT_LIST_HEAD(&bdev->swap_lru);
         bdev->dev_mapping = NULL;
+        bdev->need_dma32 = need_dma32;
         ttm_mem_init_shrink(&bdev->shrink, ttm_bo_swapout);
         ret = ttm_mem_register_shrink(mem_glob, &bdev->shrink);
         if (unlikely(ret != 0)) {
@@ -1419,6 +1454,7 @@ void ttm_bo_unmap_virtual(struct ttm_buffer_object *bo)
 
         unmap_mapping_range(bdev->dev_mapping, offset, holelen, 1);
 }
+EXPORT_SYMBOL(ttm_bo_unmap_virtual);
 
 static void ttm_bo_vm_insert_rb(struct ttm_buffer_object *bo)
 {
@@ -1540,6 +1576,10 @@ int ttm_bo_wait(struct ttm_buffer_object *bo,
                         driver->sync_obj_unref(&sync_obj);
                         driver->sync_obj_unref(&tmp_obj);
                         spin_lock(&bo->lock);
+                } else {
+                        spin_unlock(&bo->lock);
+                        driver->sync_obj_unref(&sync_obj);
+                        spin_lock(&bo->lock);
                 }
         }
         return 0;
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index 517c84559633..ad4ada07c6cf 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -34,7 +34,6 @@
 #include <linux/highmem.h>
 #include <linux/wait.h>
 #include <linux/vmalloc.h>
-#include <linux/version.h>
 #include <linux/module.h>
 
 void ttm_bo_free_old_node(struct ttm_buffer_object *bo)
@@ -137,7 +136,8 @@ static int ttm_copy_io_page(void *dst, void *src, unsigned long page)
 }
 
 static int ttm_copy_io_ttm_page(struct ttm_tt *ttm, void *src,
-                                unsigned long page)
+                                unsigned long page,
+                                pgprot_t prot)
 {
         struct page *d = ttm_tt_get_page(ttm, page);
         void *dst;
@@ -146,17 +146,35 @@ static int ttm_copy_io_ttm_page(struct ttm_tt *ttm, void *src,
                 return -ENOMEM;
 
         src = (void *)((unsigned long)src + (page << PAGE_SHIFT));
-        dst = kmap(d);
+
+#ifdef CONFIG_X86
+        dst = kmap_atomic_prot(d, KM_USER0, prot);
+#else
+        if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
+                dst = vmap(&d, 1, 0, prot);
+        else
+                dst = kmap(d);
+#endif
         if (!dst)
                 return -ENOMEM;
 
         memcpy_fromio(dst, src, PAGE_SIZE);
-        kunmap(d);
+
+#ifdef CONFIG_X86
+        kunmap_atomic(dst, KM_USER0);
+#else
+        if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
+                vunmap(dst);
+        else
+                kunmap(d);
+#endif
+
         return 0;
 }
 
 static int ttm_copy_ttm_io_page(struct ttm_tt *ttm, void *dst,
-                                unsigned long page)
+                                unsigned long page,
+                                pgprot_t prot)
 {
         struct page *s = ttm_tt_get_page(ttm, page);
         void *src;
@@ -165,12 +183,28 @@ static int ttm_copy_ttm_io_page(struct ttm_tt *ttm, void *dst,
                 return -ENOMEM;
 
         dst = (void *)((unsigned long)dst + (page << PAGE_SHIFT));
-        src = kmap(s);
+#ifdef CONFIG_X86
+        src = kmap_atomic_prot(s, KM_USER0, prot);
+#else
+        if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
+                src = vmap(&s, 1, 0, prot);
+        else
+                src = kmap(s);
+#endif
         if (!src)
                 return -ENOMEM;
 
         memcpy_toio(dst, src, PAGE_SIZE);
-        kunmap(s);
+
+#ifdef CONFIG_X86
+        kunmap_atomic(src, KM_USER0);
+#else
+        if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
+                vunmap(src);
+        else
+                kunmap(s);
+#endif
+
         return 0;
 }
 
@@ -215,11 +249,17 @@ int ttm_bo_move_memcpy(struct ttm_buffer_object *bo,
 
         for (i = 0; i < new_mem->num_pages; ++i) {
                 page = i * dir + add;
-                if (old_iomap == NULL)
-                        ret = ttm_copy_ttm_io_page(ttm, new_iomap, page);
-                else if (new_iomap == NULL)
-                        ret = ttm_copy_io_ttm_page(ttm, old_iomap, page);
-                else
+                if (old_iomap == NULL) {
+                        pgprot_t prot = ttm_io_prot(old_mem->placement,
+                                                    PAGE_KERNEL);
+                        ret = ttm_copy_ttm_io_page(ttm, new_iomap, page,
+                                                   prot);
+                } else if (new_iomap == NULL) {
+                        pgprot_t prot = ttm_io_prot(new_mem->placement,
+                                                    PAGE_KERNEL);
+                        ret = ttm_copy_io_ttm_page(ttm, old_iomap, page,
+                                                   prot);
+                } else
                         ret = ttm_copy_io_page(new_iomap, old_iomap, page);
                 if (ret)
                         goto out1;
@@ -510,8 +550,8 @@ int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo,
         if (evict) {
                 ret = ttm_bo_wait(bo, false, false, false);
                 spin_unlock(&bo->lock);
-                driver->sync_obj_unref(&bo->sync_obj);
-
+                if (tmp_obj)
+                        driver->sync_obj_unref(&tmp_obj);
                 if (ret)
                         return ret;
 
@@ -533,6 +573,8 @@ int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo,
 
                 set_bit(TTM_BO_PRIV_FLAG_MOVING, &bo->priv_flags);
                 spin_unlock(&bo->lock);
+                if (tmp_obj)
+                        driver->sync_obj_unref(&tmp_obj);
 
                 ret = ttm_buffer_object_transfer(bo, &ghost_obj);
                 if (ret)
diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c
index 27b146c54fbc..33de7637c0c6 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_vm.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c
@@ -32,7 +32,6 @@
 #include <ttm/ttm_bo_driver.h>
 #include <ttm/ttm_placement.h>
 #include <linux/mm.h>
-#include <linux/version.h>
 #include <linux/rbtree.h>
 #include <linux/module.h>
 #include <linux/uaccess.h>
@@ -102,6 +101,9 @@ static int ttm_bo_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
                 return VM_FAULT_NOPAGE;
         }
 
+        if (bdev->driver->fault_reserve_notify)
+                bdev->driver->fault_reserve_notify(bo);
+
         /*
          * Wait for buffer data in transit, due to a pipelined
          * move.
@@ -328,7 +330,7 @@ ssize_t ttm_bo_io(struct ttm_bo_device *bdev, struct file *filp,
                 goto out_unref;
 
         kmap_offset = dev_offset - bo->vm_node->start;
-        if (unlikely(kmap_offset) >= bo->num_pages) {
+        if (unlikely(kmap_offset >= bo->num_pages)) {
                 ret = -EFBIG;
                 goto out_unref;
         }
@@ -402,7 +404,7 @@ ssize_t ttm_bo_fbdev_io(struct ttm_buffer_object *bo, const char __user *wbuf,
         bool dummy;
 
         kmap_offset = (*f_pos >> PAGE_SHIFT);
-        if (unlikely(kmap_offset) >= bo->num_pages)
+        if (unlikely(kmap_offset >= bo->num_pages))
                 return -EFBIG;
 
         page_offset = *f_pos & ~PAGE_MASK;
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index 0331fa74cd3f..b8b6c4a5f983 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -28,7 +28,6 @@
  * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
  */
 
-#include <linux/version.h>
 #include <linux/vmalloc.h>
 #include <linux/sched.h>
 #include <linux/highmem.h>
@@ -87,10 +86,16 @@ void ttm_tt_cache_flush(struct page *pages[], unsigned long num_pages)
         unsigned long i;
 
         for (i = 0; i < num_pages; ++i) {
-                if (pages[i]) {
-                        unsigned long start = (unsigned long)page_address(pages[i]);
-                        flush_dcache_range(start, start + PAGE_SIZE);
-                }
+                struct page *page = pages[i];
+                void *page_virtual;
+
+                if (unlikely(page == NULL))
+                        continue;
+
+                page_virtual = kmap_atomic(page, KM_USER0);
+                flush_dcache_range((unsigned long) page_virtual,
+                                   (unsigned long) page_virtual + PAGE_SIZE);
+                kunmap_atomic(page_virtual, KM_USER0);
         }
 #else
         if (on_each_cpu(ttm_tt_ipi_handler, NULL, 1) != 0)
@@ -132,10 +137,17 @@ static void ttm_tt_free_page_directory(struct ttm_tt *ttm)
 
 static struct page *ttm_tt_alloc_page(unsigned page_flags)
 {
+        gfp_t gfp_flags = GFP_USER;
+
         if (page_flags & TTM_PAGE_FLAG_ZERO_ALLOC)
-                return alloc_page(GFP_HIGHUSER | __GFP_ZERO);
+                gfp_flags |= __GFP_ZERO;
+
+        if (page_flags & TTM_PAGE_FLAG_DMA32)
+                gfp_flags |= __GFP_DMA32;
+        else
+                gfp_flags |= __GFP_HIGHMEM;
 
-        return alloc_page(GFP_HIGHUSER);
+        return alloc_page(gfp_flags);
 }
 
 static void ttm_tt_free_user_pages(struct ttm_tt *ttm)
diff --git a/drivers/gpu/drm/via/via_irq.c b/drivers/gpu/drm/via/via_irq.c
index c248c1d37268..5935b8842e86 100644
--- a/drivers/gpu/drm/via/via_irq.c
+++ b/drivers/gpu/drm/via/via_irq.c
@@ -183,7 +183,7 @@ int via_enable_vblank(struct drm_device *dev, int crtc)
         }
 
         status = VIA_READ(VIA_REG_INTERRUPT);
-        VIA_WRITE(VIA_REG_INTERRUPT, status & VIA_IRQ_VBLANK_ENABLE);
+        VIA_WRITE(VIA_REG_INTERRUPT, status | VIA_IRQ_VBLANK_ENABLE);
 
         VIA_WRITE8(0x83d4, 0x11);
         VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) | 0x30);
@@ -194,6 +194,10 @@ int via_enable_vblank(struct drm_device *dev, int crtc)
 void via_disable_vblank(struct drm_device *dev, int crtc)
 {
         drm_via_private_t *dev_priv = dev->dev_private;
+        u32 status;
+
+        status = VIA_READ(VIA_REG_INTERRUPT);
+        VIA_WRITE(VIA_REG_INTERRUPT, status & ~VIA_IRQ_VBLANK_ENABLE);
 
         VIA_WRITE8(0x83d4, 0x11);
         VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) & ~0x30);
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index f2c21d5d24e8..5eb10c2ce665 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1075,14 +1075,16 @@ EXPORT_SYMBOL_GPL(hid_report_raw_event);
  */
 int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
 {
-        struct hid_report_enum *report_enum = hid->report_enum + type;
-        struct hid_driver *hdrv = hid->driver;
+        struct hid_report_enum *report_enum;
+        struct hid_driver *hdrv;
         struct hid_report *report;
         unsigned int i;
         int ret;
 
         if (!hid || !hid->driver)
                 return -ENODEV;
+        report_enum = hid->report_enum + type;
+        hdrv = hid->driver;
 
         if (!size) {
                 dbg_hid("empty report\n");
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 76c4bbe9dccb..3c1fcb7640ab 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -22,7 +22,6 @@
 #include <linux/list.h>
 #include <linux/mm.h>
 #include <linux/mutex.h>
-#include <linux/smp_lock.h>
 #include <linux/spinlock.h>
 #include <asm/unaligned.h>
 #include <asm/byteorder.h>
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index 9e9421525fb9..215b2addddbb 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c
@@ -527,8 +527,10 @@ static noinline int hiddev_ioctl_usage(struct hiddev *hiddev, unsigned int cmd,
                         goto goodreturn;
 
                 case HIDIOCGCOLLECTIONINDEX:
+                        i = field->usage[uref->usage_index].collection_index;
+                        unlock_kernel();
                         kfree(uref_multi);
-                        return field->usage[uref->usage_index].collection_index;
+                        return i;
                 case HIDIOCGUSAGES:
                         for (i = 0; i < uref_multi->num_values; i++)
                                 uref_multi->values[i] =
diff --git a/drivers/hwmon/abituguru3.c b/drivers/hwmon/abituguru3.c
index ad2b3431b725..7d3f15d32fdf 100644
--- a/drivers/hwmon/abituguru3.c
+++ b/drivers/hwmon/abituguru3.c
@@ -357,7 +357,7 @@ static const struct abituguru3_motherboard_info abituguru3_motherboards[] = {
                 { "AUX5 Fan",           39, 2, 60, 1, 0 },
                 { NULL, 0, 0, 0, 0, 0 } }
         },
-        { 0x0014, NULL /* Abit AB9 Pro, need DMI string */, {
+        { 0x0014, "AB9", /* + AB9 Pro */ {
                 { "CPU Core",            0, 0, 10, 1, 0 },
                 { "DDR",                 1, 0, 10, 1, 0 },
                 { "DDR VTT",             2, 0, 10, 1, 0 },
@@ -455,7 +455,7 @@ static const struct abituguru3_motherboard_info abituguru3_motherboards[] = {
                 { "AUX3 FAN",           37, 2, 60, 1, 0 },
                 { NULL, 0, 0, 0, 0, 0 } }
         },
-        { 0x0018, NULL /* Unknown, need DMI string */, {
+        { 0x0018, "AB9 QuadGT", {
                 { "CPU Core",            0, 0, 10, 1, 0 },
                 { "DDR2",                1, 0, 20, 1, 0 },
                 { "DDR2 VTT",            2, 0, 10, 1, 0 },
@@ -564,7 +564,7 @@ static const struct abituguru3_motherboard_info abituguru3_motherboards[] = {
                 { "AUX3 Fan",           36, 2, 60, 1, 0 },
                 { NULL, 0, 0, 0, 0, 0 } }
         },
-        { 0x001C, NULL /* Unknown, need DMI string */, {
+        { 0x001C, "IX38 QuadGT", {
                 { "CPU Core",            0, 0, 10, 1, 0 },
                 { "DDR2",                1, 0, 20, 1, 0 },
                 { "DDR2 VTT",            2, 0, 10, 1, 0 },
diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c
index bff0103610c1..fe4fa29c9219 100644
--- a/drivers/hwmon/asus_atk0110.c
+++ b/drivers/hwmon/asus_atk0110.c
@@ -593,7 +593,11 @@ static int atk_add_sensor(struct atk_data *data, union acpi_object *obj)
         sensor->data = data;
         sensor->id = flags->integer.value;
         sensor->limit1 = limit1->integer.value;
-        sensor->limit2 = limit2->integer.value;
+        if (data->old_interface)
+                sensor->limit2 = limit2->integer.value;
+        else
+                /* The upper limit is expressed as delta from lower limit */
+                sensor->limit2 = sensor->limit1 + limit2->integer.value;
 
         snprintf(sensor->input_attr_name, ATTR_NAME_SIZE,
                         "%s%d_input", base_name, start + *num);
diff --git a/drivers/hwmon/max6650.c b/drivers/hwmon/max6650.c
index 86142a858238..58f66be61b1f 100644
--- a/drivers/hwmon/max6650.c
+++ b/drivers/hwmon/max6650.c
@@ -418,6 +418,7 @@ static ssize_t set_div(struct device *dev, struct device_attribute *devattr,
                 data->count = 3;
                 break;
         default:
+                mutex_unlock(&data->update_lock);
                 dev_err(&client->dev,
                         "illegal value for fan divider (%d)\n", div);
                 return -EINVAL;
diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c
index 56cd6004da36..6290a259456e 100644
--- a/drivers/hwmon/sht15.c
+++ b/drivers/hwmon/sht15.c
@@ -257,7 +257,7 @@ static inline int sht15_update_single_val(struct sht15_data *data,
                                  (data->flag == SHT15_READING_NOTHING),
                                  msecs_to_jiffies(timeout_msecs));
         if (ret == 0) {/* timeout occurred */
-                disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));;
+                disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));
                 sht15_connection_reset(data);
                 return -ETIME;
         }
diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c
index a92dbb97ee99..ba75bfcf14ce 100644
--- a/drivers/hwmon/smsc47m1.c
+++ b/drivers/hwmon/smsc47m1.c
@@ -86,6 +86,7 @@ superio_exit(void)
 #define SUPERIO_REG_ACT         0x30
 #define SUPERIO_REG_BASE        0x60
 #define SUPERIO_REG_DEVID       0x20
+#define SUPERIO_REG_DEVREV      0x21
 
 /* Logical device registers */
 
@@ -429,6 +430,9 @@ static int __init smsc47m1_find(unsigned short *addr,
          * The LPC47M292 (device id 0x6B) is somewhat compatible, but it
          * supports a 3rd fan, and the pin configuration registers are
          * unfortunately different.
+         * The LPC47M233 has the same device id (0x6B) but is not compatible.
+         * We check the high bit of the device revision register to
+         * differentiate them.
          */
         switch (val) {
         case 0x51:
@@ -448,6 +452,13 @@ static int __init smsc47m1_find(unsigned short *addr,
                 sio_data->type = smsc47m1;
                 break;
         case 0x6B:
+                if (superio_inb(SUPERIO_REG_DEVREV) & 0x80) {
+                        pr_debug(DRVNAME ": "
+                                 "Found SMSC LPC47M233, unsupported\n");
+                        superio_exit();
+                        return -ENODEV;
+                }
+
                 pr_info(DRVNAME ": Found SMSC LPC47M292\n");
                 sio_data->type = smsc47m2;
                 break;
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index aa87b6a3bbef..8206442fbabd 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -328,6 +328,7 @@ config I2C_DAVINCI
 
 config I2C_DESIGNWARE
         tristate "Synopsys DesignWare"
+        depends on HAVE_CLK
         help
           If you say yes to this option, support will be included for the
           Synopsys DesignWare I2C adapter. Only master mode is supported.
diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c
index 3fae3a91ce5b..c89687a10835 100644
--- a/drivers/i2c/busses/i2c-davinci.c
+++ b/drivers/i2c/busses/i2c-davinci.c
@@ -187,6 +187,11 @@ static int i2c_davinci_init(struct davinci_i2c_dev *dev)
         davinci_i2c_write_reg(dev, DAVINCI_I2C_CLKH_REG, clkh);
         davinci_i2c_write_reg(dev, DAVINCI_I2C_CLKL_REG, clkl);
 
+        /* Respond at reserved "SMBus Host" slave address" (and zero);
+         * we seem to have no option to not respond...
+         */
+        davinci_i2c_write_reg(dev, DAVINCI_I2C_OAR_REG, 0x08);
+
         dev_dbg(dev->dev, "input_clock = %d, CLK = %d\n", input_clock, clk);
         dev_dbg(dev->dev, "PSC  = %d\n",
                 davinci_i2c_read_reg(dev, DAVINCI_I2C_PSC_REG));
@@ -387,7 +392,7 @@ static void terminate_write(struct davinci_i2c_dev *dev)
         davinci_i2c_write_reg(dev, DAVINCI_I2C_MDR_REG, w);
 
         if (!dev->terminate)
-                dev_err(dev->dev, "TDR IRQ while no data to send\n");
+                dev_dbg(dev->dev, "TDR IRQ while no data to send\n");
 }
 
 /*
@@ -473,9 +478,14 @@ static irqreturn_t i2c_davinci_isr(int this_irq, void *dev_id)
                         break;
 
                 case DAVINCI_I2C_IVR_AAS:
-                        dev_warn(dev->dev, "Address as slave interrupt\n");
-                }/* switch */
-        }/* while */
+                        dev_dbg(dev->dev, "Address as slave interrupt\n");
+                        break;
+
+                default:
+                        dev_warn(dev->dev, "Unrecognized irq stat %d\n", stat);
+                        break;
+                }
+        }
 
         return count ? IRQ_HANDLED : IRQ_NONE;
 }
@@ -505,7 +515,7 @@ static int davinci_i2c_probe(struct platform_device *pdev)
                 return -ENODEV;
         }
 
-        ioarea = request_mem_region(mem->start, (mem->end - mem->start) + 1,
+        ioarea = request_mem_region(mem->start, resource_size(mem),
                                     pdev->name);
         if (!ioarea) {
                 dev_err(&pdev->dev, "I2C region already claimed\n");
@@ -523,7 +533,7 @@ static int davinci_i2c_probe(struct platform_device *pdev)
         dev->irq = irq->start;
         platform_set_drvdata(pdev, dev);
 
-        dev->clk = clk_get(&pdev->dev, "I2CCLK");
+        dev->clk = clk_get(&pdev->dev, NULL);
         if (IS_ERR(dev->clk)) {
                 r = -ENODEV;
                 goto err_free_mem;
@@ -568,7 +578,7 @@ err_free_mem:
         put_device(&pdev->dev);
         kfree(dev);
 err_release_region:
-        release_mem_region(mem->start, (mem->end - mem->start) + 1);
+        release_mem_region(mem->start, resource_size(mem));
 
         return r;
 }
@@ -591,7 +601,7 @@ static int davinci_i2c_remove(struct platform_device *pdev)
         kfree(dev);
 
         mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        release_mem_region(mem->start, (mem->end - mem->start) + 1);
+        release_mem_region(mem->start, resource_size(mem));
         return 0;
 }
 
diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
index e4476743f203..b1bc6e277d2a 100644
--- a/drivers/i2c/busses/i2c-ibm_iic.c
+++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -85,10 +85,11 @@ static void dump_iic_regs(const char* header, struct ibm_iic_private* dev)
 {
         volatile struct iic_regs __iomem *iic = dev->vaddr;
         printk(KERN_DEBUG "ibm-iic%d: %s\n", dev->idx, header);
-        printk(KERN_DEBUG "  cntl     = 0x%02x, mdcntl = 0x%02x\n"
-               KERN_DEBUG "  sts      = 0x%02x, extsts = 0x%02x\n"
-               KERN_DEBUG "  clkdiv   = 0x%02x, xfrcnt = 0x%02x\n"
-               KERN_DEBUG "  xtcntlss = 0x%02x, directcntl = 0x%02x\n",
+        printk(KERN_DEBUG
+               "  cntl     = 0x%02x, mdcntl = 0x%02x\n"
+               "  sts      = 0x%02x, extsts = 0x%02x\n"
+               "  clkdiv   = 0x%02x, xfrcnt = 0x%02x\n"
+               "  xtcntlss = 0x%02x, directcntl = 0x%02x\n",
                 in_8(&iic->cntl), in_8(&iic->mdcntl), in_8(&iic->sts),
                 in_8(&iic->extsts), in_8(&iic->clkdiv), in_8(&iic->xfrcnt),
                 in_8(&iic->xtcntlss), in_8(&iic->directcntl));
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index ad8d2010c921..d258b02aef44 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -672,9 +672,10 @@ omap_i2c_isr(int this_irq, void *dev_id)
                         break;
                 }
 
+                err = 0;
+complete:
                 omap_i2c_write_reg(dev, OMAP_I2C_STAT_REG, stat);
 
-                err = 0;
                 if (stat & OMAP_I2C_STAT_NACK) {
                         err |= OMAP_I2C_STAT_NACK;
                         omap_i2c_write_reg(dev, OMAP_I2C_CON_REG,
@@ -685,16 +686,19 @@ omap_i2c_isr(int this_irq, void *dev_id)
                         err |= OMAP_I2C_STAT_AL;
                 }
                 if (stat & (OMAP_I2C_STAT_ARDY | OMAP_I2C_STAT_NACK |
-                                        OMAP_I2C_STAT_AL))
+                                        OMAP_I2C_STAT_AL)) {
                         omap_i2c_complete_cmd(dev, err);
+                        return IRQ_HANDLED;
+                }
                 if (stat & (OMAP_I2C_STAT_RRDY | OMAP_I2C_STAT_RDR)) {
                         u8 num_bytes = 1;
                         if (dev->fifo_size) {
                                 if (stat & OMAP_I2C_STAT_RRDY)
                                         num_bytes = dev->fifo_size;
-                                else
-                                        num_bytes = omap_i2c_read_reg(dev,
-                                                        OMAP_I2C_BUFSTAT_REG);
+                                else    /* read RXSTAT on RDR interrupt */
+                                        num_bytes = (omap_i2c_read_reg(dev,
+                                                        OMAP_I2C_BUFSTAT_REG)
+                                                        >> 8) & 0x3F;
                         }
                         while (num_bytes) {
                                 num_bytes--;
@@ -731,9 +735,10 @@ omap_i2c_isr(int this_irq, void *dev_id)
                         if (dev->fifo_size) {
                                 if (stat & OMAP_I2C_STAT_XRDY)
                                         num_bytes = dev->fifo_size;
-                                else
+                                else    /* read TXSTAT on XDR interrupt */
                                         num_bytes = omap_i2c_read_reg(dev,
-                                                        OMAP_I2C_BUFSTAT_REG);
+                                                        OMAP_I2C_BUFSTAT_REG)
+                                                        & 0x3F;
                         }
                         while (num_bytes) {
                                 num_bytes--;
@@ -760,6 +765,27 @@ omap_i2c_isr(int this_irq, void *dev_id)
                                                         "data to send\n");
                                         break;
                                 }
+
+                                /*
+                                 * OMAP3430 Errata 1.153: When an XRDY/XDR
+                                 * is hit, wait for XUDF before writing data
+                                 * to DATA_REG. Otherwise some data bytes can
+                                 * be lost while transferring them from the
+                                 * memory to the I2C interface.
+                                 */
+
+                                if (cpu_is_omap34xx()) {
+                                                while (!(stat & OMAP_I2C_STAT_XUDF)) {
+                                                        if (stat & (OMAP_I2C_STAT_NACK | OMAP_I2C_STAT_AL)) {
+                                                                omap_i2c_ack_stat(dev, stat & (OMAP_I2C_STAT_XRDY | OMAP_I2C_STAT_XDR));
+                                                                err |= OMAP_I2C_STAT_XUDF;
+                                                                goto complete;
+                                                        }
+                                                        cpu_relax();
+                                                        stat = omap_i2c_read_reg(dev, OMAP_I2C_STAT_REG);
+                                                }
+                                }
+
                                 omap_i2c_write_reg(dev, OMAP_I2C_DATA_REG, w);
                         }
                         omap_i2c_ack_stat(dev,
@@ -806,7 +832,7 @@ omap_i2c_probe(struct platform_device *pdev)
                 return -ENODEV;
         }
 
-        ioarea = request_mem_region(mem->start, (mem->end - mem->start) + 1,
+        ioarea = request_mem_region(mem->start, resource_size(mem),
                         pdev->name);
         if (!ioarea) {
                 dev_err(&pdev->dev, "I2C region already claimed\n");
@@ -879,7 +905,7 @@ omap_i2c_probe(struct platform_device *pdev)
         i2c_set_adapdata(adap, dev);
         adap->owner = THIS_MODULE;
         adap->class = I2C_CLASS_HWMON;
-        strncpy(adap->name, "OMAP I2C adapter", sizeof(adap->name));
+        strlcpy(adap->name, "OMAP I2C adapter", sizeof(adap->name));
         adap->algo = &omap_i2c_algo;
         adap->dev.parent = &pdev->dev;
 
@@ -905,7 +931,7 @@ err_free_mem:
         platform_set_drvdata(pdev, NULL);
         kfree(dev);
 err_release_region:
-        release_mem_region(mem->start, (mem->end - mem->start) + 1);
+        release_mem_region(mem->start, resource_size(mem));
 
         return r;
 }
@@ -925,7 +951,7 @@ omap_i2c_remove(struct platform_device *pdev)
         iounmap(dev->base);
         kfree(dev);
         mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        release_mem_region(mem->start, (mem->end - mem->start) + 1);
+        release_mem_region(mem->start, resource_size(mem));
         return 0;
 }
 
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index 8f42a4536cdf..20bb0ceb027b 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -763,11 +763,6 @@ static int s3c24xx_i2c_init(struct s3c24xx_i2c *i2c)
         dev_info(i2c->dev, "bus frequency set to %d KHz\n", freq);
         dev_dbg(i2c->dev, "S3C2410_IICCON=0x%02lx\n", iicon);
 
-        /* check for s3c2440 i2c controller  */
-
-        if (s3c24xx_i2c_is2440(i2c))
-                writel(0x0, i2c->regs + S3C2440_IICLC);
-
         return 0;
 }
 
diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c
index 1c01083b01b5..820487d0d5c7 100644
--- a/drivers/i2c/busses/i2c-sh_mobile.c
+++ b/drivers/i2c/busses/i2c-sh_mobile.c
@@ -563,7 +563,7 @@ static int sh_mobile_i2c_probe(struct platform_device *dev)
                 goto err_irq;
         }
 
-        size = (res->end - res->start) + 1;
+        size = resource_size(res);
 
         pd->reg = ioremap(res->start, size);
         if (pd->reg == NULL) {
@@ -637,7 +637,7 @@ static void __exit sh_mobile_i2c_adap_exit(void)
         platform_driver_unregister(&sh_mobile_i2c_driver);
 }
 
-module_init(sh_mobile_i2c_adap_init);
+subsys_initcall(sh_mobile_i2c_adap_init);
 module_exit(sh_mobile_i2c_adap_exit);
 
 MODULE_DESCRIPTION("SuperH Mobile I2C Bus Controller driver");
diff --git a/drivers/i2c/busses/i2c-simtec.c b/drivers/i2c/busses/i2c-simtec.c
index 042fda295f3a..6407f47bda82 100644
--- a/drivers/i2c/busses/i2c-simtec.c
+++ b/drivers/i2c/busses/i2c-simtec.c
@@ -92,7 +92,7 @@ static int simtec_i2c_probe(struct platform_device *dev)
                 goto err;
         }
 
-        size = (res->end-res->start)+1;
+        size = resource_size(res);
 
         pd->ioarea = request_mem_region(res->start, size, dev->name);
         if (pd->ioarea == NULL) {
diff --git a/drivers/i2c/chips/tsl2550.c b/drivers/i2c/chips/tsl2550.c
index 1a9cc135219f..b96f3025e588 100644
--- a/drivers/i2c/chips/tsl2550.c
+++ b/drivers/i2c/chips/tsl2550.c
@@ -27,7 +27,7 @@
 #include <linux/delay.h>
 
 #define TSL2550_DRV_NAME        "tsl2550"
-#define DRIVER_VERSION          "1.1.1"
+#define DRIVER_VERSION          "1.1.2"
 
 /*
  * Defines
@@ -189,13 +189,16 @@ static int tsl2550_calculate_lux(u8 ch0, u8 ch1)
         u8 r = 128;
 
         /* Avoid division by 0 and count 1 cannot be greater than count 0 */
-        if (c0 && (c1 <= c0))
-                r = c1 * 128 / c0;
+        if (c1 <= c0)
+                if (c0) {
+                        r = c1 * 128 / c0;
+
+                        /* Calculate LUX */
+                        lux = ((c0 - c1) * ratio_lut[r]) / 256;
+                } else
+                        lux = 0;
         else
-                return -1;
-
-        /* Calculate LUX */
-        lux = ((c0 - c1) * ratio_lut[r]) / 256;
+                return -EAGAIN;
 
         /* LUX range check */
         return lux > TSL2550_MAX_LUX ? TSL2550_MAX_LUX : lux;
diff --git a/drivers/ide/cs5520.c b/drivers/ide/cs5520.c
index bd066bb9d611..09f98ed0731f 100644
--- a/drivers/ide/cs5520.c
+++ b/drivers/ide/cs5520.c
@@ -135,6 +135,7 @@ static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_devic
 
         ide_pci_setup_ports(dev, d, &hw[0], &hws[0]);
         hw[0].irq = 14;
+        hw[1].irq = 15;
 
         return ide_host_add(d, hws, 2, NULL);
 }
diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
index 77f79d26b264..c509c9916464 100644
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c
@@ -92,6 +92,11 @@ int ide_acpi_init(void)
         return 0;
 }
 
+bool ide_port_acpi(ide_hwif_t *hwif)
+{
+        return ide_noacpi == 0 && hwif->acpidata;
+}
+
 /**
  * ide_get_dev_handle - finds acpi_handle and PCI device.function
  * @dev: device to locate
@@ -352,9 +357,6 @@ int ide_acpi_exec_tfs(ide_drive_t *drive)
         unsigned long   gtf_address;
         unsigned long   obj_loc;
 
-        if (ide_noacpi)
-                return 0;
-
         DEBPRINT("call get_GTF, drive=%s port=%d\n", drive->name, drive->dn);
 
         ret = do_drive_get_GTF(drive, &gtf_length, &gtf_address, &obj_loc);
@@ -389,16 +391,6 @@ void ide_acpi_get_timing(ide_hwif_t *hwif)
         struct acpi_buffer      output;
         union acpi_object       *out_obj;
 
-        if (ide_noacpi)
-                return;
-
-        DEBPRINT("ENTER:\n");
-
-        if (!hwif->acpidata) {
-                DEBPRINT("no ACPI data for %s\n", hwif->name);
-                return;
-        }
-
         /* Setting up output buffer for _GTM */
         output.length = ACPI_ALLOCATE_BUFFER;
         output.pointer = NULL;  /* ACPI-CA sets this; save/free it later */
@@ -479,16 +471,6 @@ void ide_acpi_push_timing(ide_hwif_t *hwif)
         struct ide_acpi_drive_link      *master = &hwif->acpidata->master;
         struct ide_acpi_drive_link      *slave = &hwif->acpidata->slave;
 
-        if (ide_noacpi)
-                return;
-
-        DEBPRINT("ENTER:\n");
-
-        if (!hwif->acpidata) {
-                DEBPRINT("no ACPI data for %s\n", hwif->name);
-                return;
-        }
-
         /* Give the GTM buffer + drive Identify data to the channel via the
          * _STM method: */
         /* setup input parameters buffer for _STM */
@@ -527,16 +509,11 @@ void ide_acpi_set_state(ide_hwif_t *hwif, int on)
         ide_drive_t *drive;
         int i;
 
-        if (ide_noacpi || ide_noacpi_psx)
+        if (ide_noacpi_psx)
                 return;
 
         DEBPRINT("ENTER:\n");
 
-        if (!hwif->acpidata) {
-                DEBPRINT("no ACPI data for %s\n", hwif->name);
-                return;
-        }
-
         /* channel first and then drives for power on and verse versa for power off */
         if (on)
                 acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D0);
@@ -616,7 +593,7 @@ void ide_acpi_port_init_devices(ide_hwif_t *hwif)
                                  drive->name, err);
         }
 
-        if (!ide_acpionboot) {
+        if (ide_noacpi || ide_acpionboot == 0) {
                 DEBPRINT("ACPI methods disabled on boot\n");
                 return;
         }
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 4a19686fcfe9..6a9a769bffc1 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -592,9 +592,19 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
                         }
                 } else if (!blk_pc_request(rq)) {
                         ide_cd_request_sense_fixup(drive, cmd);
-                        /* complain if we still have data left to transfer */
+
                         uptodate = cmd->nleft ? 0 : 1;
-                        if (uptodate == 0)
+
+                        /*
+                         * suck out the remaining bytes from the drive in an
+                         * attempt to complete the data xfer. (see BZ#13399)
+                         */
+                        if (!(stat & ATA_ERR) && !uptodate && thislen) {
+                                ide_pio_bytes(drive, cmd, write, thislen);
+                                uptodate = cmd->nleft ? 0 : 1;
+                        }
+
+                        if (!uptodate)
                                 rq->cmd_flags |= REQ_FAILED;
                 }
                 goto out_end;
@@ -876,9 +886,12 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
                 return stat;
 
         /*
-         * Sanity check the given block size
+         * Sanity check the given block size, in so far as making
+         * sure the sectors_per_frame we give to the caller won't
+         * end up being bogus.
          */
         blocklen = be32_to_cpu(capbuf.blocklen);
+        blocklen = (blocklen >> SECTOR_BITS) << SECTOR_BITS;
         switch (blocklen) {
         case 512:
         case 1024:
@@ -886,10 +899,9 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
         case 4096:
                 break;
         default:
-                printk(KERN_ERR PFX "%s: weird block size %u\n",
+                printk_once(KERN_ERR PFX "%s: weird block size %u; "
+                                "setting default block size to 2048\n",
                                 drive->name, blocklen);
-                printk(KERN_ERR PFX "%s: default to 2kb block size\n",
-                                drive->name);
                 blocklen = 2048;
                 break;
         }
diff --git a/drivers/ide/ide-devsets.c b/drivers/ide/ide-devsets.c
index 5bf958e5b1d5..1099bf7cf968 100644
--- a/drivers/ide/ide-devsets.c
+++ b/drivers/ide/ide-devsets.c
@@ -183,6 +183,6 @@ ide_startstop_t ide_do_devset(ide_drive_t *drive, struct request *rq)
         err = setfunc(drive, *(int *)&rq->cmd[1]);
         if (err)
                 rq->errors = err;
-        ide_complete_rq(drive, err, ide_rq_bytes(rq));
+        ide_complete_rq(drive, err, blk_rq_bytes(rq));
         return ide_stopped;
 }
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 695181120cdb..7f878017b736 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -455,6 +455,7 @@ static void idedisk_prepare_flush(struct request_queue *q, struct request *rq)
 
         rq->cmd_type = REQ_TYPE_ATA_TASKFILE;
         rq->special = cmd;
+        cmd->rq = rq;
 }
 
 ide_devset_get(multcount, mult_count);
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 219e6fb78dc6..ee58c88dee5a 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -361,9 +361,6 @@ static int ide_tune_dma(ide_drive_t *drive)
         if (__ide_dma_bad_drive(drive))
                 return 0;
 
-        if (ide_id_dma_bug(drive))
-                return 0;
-
         if (hwif->host_flags & IDE_HFLAG_TRUST_BIOS_FOR_DMA)
                 return config_drive_for_dma(drive);
 
@@ -394,24 +391,6 @@ static int ide_dma_check(ide_drive_t *drive)
         return -1;
 }
 
-int ide_id_dma_bug(ide_drive_t *drive)
-{
-        u16 *id = drive->id;
-
-        if (id[ATA_ID_FIELD_VALID] & 4) {
-                if ((id[ATA_ID_UDMA_MODES] >> 8) &&
-                    (id[ATA_ID_MWDMA_MODES] >> 8))
-                        goto err_out;
-        } else if ((id[ATA_ID_MWDMA_MODES] >> 8) &&
-                   (id[ATA_ID_SWDMA_MODES] >> 8))
-                goto err_out;
-
-        return 0;
-err_out:
-        printk(KERN_ERR "%s: bad DMA info in identify block\n", drive->name);
-        return 1;
-}
-
 int ide_set_dma(ide_drive_t *drive)
 {
         int rc;
diff --git a/drivers/ide/ide-eh.c b/drivers/ide/ide-eh.c
index 2b9141979613..e9abf2c3c335 100644
--- a/drivers/ide/ide-eh.c
+++ b/drivers/ide/ide-eh.c
@@ -149,7 +149,7 @@ static inline void ide_complete_drive_reset(ide_drive_t *drive, int err)
         if (rq && blk_special_request(rq) && rq->cmd[0] == REQ_DRIVE_RESET) {
                 if (err <= 0 && rq->errors == 0)
                         rq->errors = -EIO;
-                ide_complete_rq(drive, err ? err : 0, ide_rq_bytes(rq));
+                ide_complete_rq(drive, err ? err : 0, blk_rq_bytes(rq));
         }
 }
 
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 8b3f204f7d73..fefbdfc8db06 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -293,7 +293,7 @@ out_end:
         drive->failed_pc = NULL;
         if (blk_fs_request(rq) == 0 && rq->errors == 0)
                 rq->errors = -EIO;
-        ide_complete_rq(drive, -EIO, ide_rq_bytes(rq));
+        ide_complete_rq(drive, -EIO, blk_rq_bytes(rq));
         return ide_stopped;
 }
 
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 1059f809b809..db96138fefcd 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -112,16 +112,6 @@ void ide_complete_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat, u8 err)
         }
 }
 
-/* obsolete, blk_rq_bytes() should be used instead */
-unsigned int ide_rq_bytes(struct request *rq)
-{
-        if (blk_pc_request(rq))
-                return blk_rq_bytes(rq);
-        else
-                return blk_rq_cur_sectors(rq) << 9;
-}
-EXPORT_SYMBOL_GPL(ide_rq_bytes);
-
 int ide_complete_rq(ide_drive_t *drive, int error, unsigned int nr_bytes)
 {
         ide_hwif_t *hwif = drive->hwif;
@@ -152,14 +142,14 @@ void ide_kill_rq(ide_drive_t *drive, struct request *rq)
 
         if ((media == ide_floppy || media == ide_tape) && drv_req) {
                 rq->errors = 0;
-                ide_complete_rq(drive, 0, blk_rq_bytes(rq));
         } else {
                 if (media == ide_tape)
                         rq->errors = IDE_DRV_ERROR_GENERAL;
                 else if (blk_fs_request(rq) == 0 && rq->errors == 0)
                         rq->errors = -EIO;
-                ide_complete_rq(drive, -EIO, ide_rq_bytes(rq));
         }
+
+        ide_complete_rq(drive, -EIO, blk_rq_bytes(rq));
 }
 
 static void ide_tf_set_specify_cmd(ide_drive_t *drive, struct ide_taskfile *tf)
diff --git a/drivers/ide/ide-ioctls.c b/drivers/ide/ide-ioctls.c
index 82f252c3ee6e..e246d3d3fbcc 100644
--- a/drivers/ide/ide-ioctls.c
+++ b/drivers/ide/ide-ioctls.c
@@ -64,7 +64,8 @@ static int ide_get_identity_ioctl(ide_drive_t *drive, unsigned int cmd,
                 goto out;
         }
 
-        id = kmalloc(size, GFP_KERNEL);
+        /* ata_id_to_hd_driveid() relies on 'id' to be fully allocated. */
+        id = kmalloc(ATA_ID_WORDS * 2, GFP_KERNEL);
         if (id == NULL) {
                 rc = -ENOMEM;
                 goto out;
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index fa047150a1c6..2892b242bbe1 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -210,6 +210,7 @@ EXPORT_SYMBOL_GPL(ide_in_drive_list);
  */
 static const struct drive_list_entry ivb_list[] = {
         { "QUANTUM FIREBALLlct10 05"    , "A03.0900"    },
+        { "QUANTUM FIREBALLlct20 30"    , "APL.0900"    },
         { "TSSTcorp CDDVDW SH-S202J"    , "SB00"        },
         { "TSSTcorp CDDVDW SH-S202J"    , "SB01"        },
         { "TSSTcorp CDDVDW SH-S202N"    , "SB00"        },
@@ -329,9 +330,6 @@ int ide_driveid_update(ide_drive_t *drive)
 
         kfree(id);
 
-        if ((drive->dev_flags & IDE_DFLAG_USING_DMA) && ide_id_dma_bug(drive))
-                ide_dma_off(drive);
-
         return 1;
 out_err:
         if (rc == 2)
diff --git a/drivers/ide/ide-pm.c b/drivers/ide/ide-pm.c
index c14ca144cffe..ad7be2669dcb 100644
--- a/drivers/ide/ide-pm.c
+++ b/drivers/ide/ide-pm.c
@@ -10,9 +10,11 @@ int generic_ide_suspend(struct device *dev, pm_message_t mesg)
         struct request_pm_state rqpm;
         int ret;
 
-        /* call ACPI _GTM only once */
-        if ((drive->dn & 1) == 0 || pair == NULL)
-                ide_acpi_get_timing(hwif);
+        if (ide_port_acpi(hwif)) {
+                /* call ACPI _GTM only once */
+                if ((drive->dn & 1) == 0 || pair == NULL)
+                        ide_acpi_get_timing(hwif);
+        }
 
         memset(&rqpm, 0, sizeof(rqpm));
         rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
@@ -26,9 +28,11 @@ int generic_ide_suspend(struct device *dev, pm_message_t mesg)
         ret = blk_execute_rq(drive->queue, NULL, rq, 0);
         blk_put_request(rq);
 
-        /* call ACPI _PS3 only after both devices are suspended */
-        if (ret == 0 && ((drive->dn & 1) || pair == NULL))
-                ide_acpi_set_state(hwif, 0);
+        if (ret == 0 && ide_port_acpi(hwif)) {
+                /* call ACPI _PS3 only after both devices are suspended */
+                if ((drive->dn & 1) || pair == NULL)
+                        ide_acpi_set_state(hwif, 0);
+        }
 
         return ret;
 }
@@ -42,13 +46,15 @@ int generic_ide_resume(struct device *dev)
         struct request_pm_state rqpm;
         int err;
 
-        /* call ACPI _PS0 / _STM only once */
-        if ((drive->dn & 1) == 0 || pair == NULL) {
-                ide_acpi_set_state(hwif, 1);
-                ide_acpi_push_timing(hwif);
-        }
+        if (ide_port_acpi(hwif)) {
+                /* call ACPI _PS0 / _STM only once */
+                if ((drive->dn & 1) == 0 || pair == NULL) {
+                        ide_acpi_set_state(hwif, 1);
+                        ide_acpi_push_timing(hwif);
+                }
 
-        ide_acpi_exec_tfs(drive);
+                ide_acpi_exec_tfs(drive);
+        }
 
         memset(&rqpm, 0, sizeof(rqpm));
         rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 51af4eea0d36..1bb106f6221a 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -818,6 +818,24 @@ static int ide_port_setup_devices(ide_hwif_t *hwif)
         return j;
 }
 
+static void ide_host_enable_irqs(struct ide_host *host)
+{
+        ide_hwif_t *hwif;
+        int i;
+
+        ide_host_for_each_port(i, hwif, host) {
+                if (hwif == NULL)
+                        continue;
+
+                /* clear any pending IRQs */
+                hwif->tp_ops->read_status(hwif);
+
+                /* unmask IRQs */
+                if (hwif->io_ports.ctl_addr)
+                        hwif->tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS);
+        }
+}
+
 /*
  * This routine sets up the IRQ for an IDE interface.
  */
@@ -831,9 +849,6 @@ static int init_irq (ide_hwif_t *hwif)
         if (irq_handler == NULL)
                 irq_handler = ide_intr;
 
-        if (io_ports->ctl_addr)
-                hwif->tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS);
-
         if (request_irq(hwif->irq, irq_handler, sa, hwif->name, hwif))
                 goto out_up;
 
@@ -1404,6 +1419,8 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d,
                         ide_port_tune_devices(hwif);
         }
 
+        ide_host_enable_irqs(host);
+
         ide_host_for_each_port(i, hwif, host) {
                 if (hwif == NULL)
                         continue;
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 013dc595fab6..bc5fb12b913c 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -1064,6 +1064,7 @@ static int idetape_blkdev_ioctl(ide_drive_t *drive, unsigned int cmd,
                 tape->best_dsc_rw_freq = config.dsc_rw_frequency;
                 break;
         case 0x0350:
+                memset(&config, 0, sizeof(config));
                 config.dsc_rw_frequency = (int) tape->best_dsc_rw_freq;
                 config.nr_stages = 1;
                 if (copy_to_user(argp, &config, sizeof(config)))
diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c
index 83b734aec923..52b25f8b111d 100644
--- a/drivers/ieee1394/sbp2.c
+++ b/drivers/ieee1394/sbp2.c
@@ -880,6 +880,7 @@ static struct sbp2_lu *sbp2_alloc_device(struct unit_directory *ud)
         }
 
         shost->hostdata[0] = (unsigned long)lu;
+        shost->max_cmd_len = SBP2_MAX_CDB_SIZE;
 
         if (!scsi_add_host(shost, &ud->device)) {
                 lu->shost = shost;
diff --git a/drivers/ieee1394/sbp2.h b/drivers/ieee1394/sbp2.h
index c5036f1cc5b0..64a3a66a8a39 100644
--- a/drivers/ieee1394/sbp2.h
+++ b/drivers/ieee1394/sbp2.h
@@ -25,6 +25,12 @@
 #define SBP2_DEVICE_NAME                "sbp2"
 
 /*
+ * There is no transport protocol limit to the CDB length,  but we implement
+ * a fixed length only.  16 bytes is enough for disks larger than 2 TB.
+ */
+#define SBP2_MAX_CDB_SIZE               16
+
+/*
  * SBP-2 specific definitions
  */
 
@@ -51,7 +57,7 @@ struct sbp2_command_orb {
         u32 data_descriptor_hi;
         u32 data_descriptor_lo;
         u32 misc;
-        u8 cdb[12];
+        u8 cdb[SBP2_MAX_CDB_SIZE];
 } __attribute__((packed));
 
 #define SBP2_LOGIN_REQUEST              0x0
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 114efd8dc8f5..1148140d08a1 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -608,8 +608,7 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
                                                     p, compat_mode);
 
                         if (_IOC_NR(cmd) == _IOC_NR(EVIOCGNAME(0)))
-                                return str_to_user(dev_name(&evdev->dev),
-                                                   _IOC_SIZE(cmd), p);
+                                return str_to_user(dev->name, _IOC_SIZE(cmd), p);
 
                         if (_IOC_NR(cmd) == _IOC_NR(EVIOCGPHYS(0)))
                                 return str_to_user(dev->phys, _IOC_SIZE(cmd), p);
diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c
index 0e12f89276a3..4cfd084fa897 100644
--- a/drivers/input/joydev.c
+++ b/drivers/input/joydev.c
@@ -536,7 +536,7 @@ static int joydev_ioctl_common(struct joydev *joydev,
         default:
                 if ((cmd & ~IOCSIZE_MASK) == JSIOCGNAME(0)) {
                         int len;
-                        const char *name = dev_name(&dev->dev);
+                        const char *name = dev->name;
 
                         if (!name)
                                 return 0;
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index b868b8d5fbb3..f155ad8cdae7 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -470,20 +470,20 @@ static void xpad_irq_out(struct urb *urb)
         status = urb->status;
 
         switch (status) {
-                case 0:
+        case 0:
                 /* success */
-                break;
-                case -ECONNRESET:
-                case -ENOENT:
-                case -ESHUTDOWN:
-                        /* this urb is terminated, clean up */
-                        dbg("%s - urb shutting down with status: %d",
-                                __func__, status);
-                        return;
-                default:
-                        dbg("%s - nonzero urb status received: %d",
-                                __func__, status);
-                        goto exit;
+                return;
+
+        case -ECONNRESET:
+        case -ENOENT:
+        case -ESHUTDOWN:
+                /* this urb is terminated, clean up */
+                dbg("%s - urb shutting down with status: %d", __func__, status);
+                return;
+
+        default:
+                dbg("%s - nonzero urb status received: %d", __func__, status);
+                goto exit;
         }
 
 exit:
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 9d8f796c6745..a6b989a9dc07 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -12,6 +12,42 @@ menuconfig INPUT_KEYBOARD
 
 if INPUT_KEYBOARD
 
+config KEYBOARD_AAED2000
+        tristate "AAED-2000 keyboard"
+        depends on MACH_AAED2000
+        select INPUT_POLLDEV
+        default y
+        help
+          Say Y here to enable the keyboard on the Agilent AAED-2000
+          development board.
+
+          To compile this driver as a module, choose M here: the
+          module will be called aaed2000_kbd.
+
+config KEYBOARD_AMIGA
+        tristate "Amiga keyboard"
+        depends on AMIGA
+        help
+          Say Y here if you are running Linux on any AMIGA and have a keyboard
+          attached.
+
+          To compile this driver as a module, choose M here: the
+          module will be called amikbd.
+
+config ATARI_KBD_CORE
+        bool
+
+config KEYBOARD_ATARI
+        tristate "Atari keyboard"
+        depends on ATARI
+        select ATARI_KBD_CORE
+        help
+          Say Y here if you are running Linux on any Atari and have a keyboard
+          attached.
+
+          To compile this driver as a module, choose M here: the
+          module will be called atakbd.
+
 config KEYBOARD_ATKBD
         tristate "AT keyboard" if EMBEDDED || !X86
         default y
@@ -68,69 +104,14 @@ config KEYBOARD_ATKBD_RDI_KEYCODES
           right-hand column will be interpreted as the key shown in the
           left-hand column.
 
-config KEYBOARD_SUNKBD
-        tristate "Sun Type 4 and Type 5 keyboard"
-        select SERIO
-        help
-          Say Y here if you want to use a Sun Type 4 or Type 5 keyboard,
-          connected either to the Sun keyboard connector or to an serial
-          (RS-232) port via a simple adapter.
-
-          To compile this driver as a module, choose M here: the
-          module will be called sunkbd.
-
-config KEYBOARD_LKKBD
-        tristate "DECstation/VAXstation LK201/LK401 keyboard"
-        select SERIO
-        help
-          Say Y here if you want to use a LK201 or LK401 style serial
-          keyboard. This keyboard is also useable on PCs if you attach
-          it with the inputattach program. The connector pinout is
-          described within lkkbd.c.
-
-          To compile this driver as a module, choose M here: the
-          module will be called lkkbd.
-
-config KEYBOARD_LOCOMO
-        tristate "LoCoMo Keyboard Support"
-        depends on SHARP_LOCOMO && INPUT_KEYBOARD
-        help
-          Say Y here if you are running Linux on a Sharp Zaurus Collie or Poodle based PDA
-
-          To compile this driver as a module, choose M here: the
-          module will be called locomokbd.
-
-config KEYBOARD_XTKBD
-        tristate "XT keyboard"
-        select SERIO
-        help
-          Say Y here if you want to use the old IBM PC/XT keyboard (or
-          compatible) on your system. This is only possible with a
-          parallel port keyboard adapter, you cannot connect it to the
-          keyboard port on a PC that runs Linux.
-
-          To compile this driver as a module, choose M here: the
-          module will be called xtkbd.
-
-config KEYBOARD_NEWTON
-        tristate "Newton keyboard"
-        select SERIO
-        help
-          Say Y here if you have a Newton keyboard on a serial port.
-
-          To compile this driver as a module, choose M here: the
-          module will be called newtonkbd.
-
-config KEYBOARD_STOWAWAY
-        tristate "Stowaway keyboard"
-        select SERIO
+config KEYBOARD_BFIN
+        tristate "Blackfin BF54x keypad support"
+        depends on (BF54x && !BF544)
         help
-          Say Y here if you have a Stowaway keyboard on a serial port.
-          Stowaway compatible keyboards like Dicota Input-PDA keyboard
-          are also supported by this driver.
+          Say Y here if you want to use the BF54x keypad.
 
           To compile this driver as a module, choose M here: the
-          module will be called stowaway.
+          module will be called bf54x-keys.
 
 config KEYBOARD_CORGI
         tristate "Corgi keyboard"
@@ -143,61 +124,50 @@ config KEYBOARD_CORGI
           To compile this driver as a module, choose M here: the
           module will be called corgikbd.
 
-config KEYBOARD_SPITZ
-        tristate "Spitz keyboard"
-        depends on PXA_SHARPSL
-        default y
+config KEYBOARD_LKKBD
+        tristate "DECstation/VAXstation LK201/LK401 keyboard"
+        select SERIO
         help
-          Say Y here to enable the keyboard on the Sharp Zaurus SL-C1000,
-          SL-C3000 and Sl-C3100 series of PDAs.
+          Say Y here if you want to use a LK201 or LK401 style serial
+          keyboard. This keyboard is also useable on PCs if you attach
+          it with the inputattach program. The connector pinout is
+          described within lkkbd.c.
 
           To compile this driver as a module, choose M here: the
-          module will be called spitzkbd.
+          module will be called lkkbd.
 
-config KEYBOARD_TOSA
-        tristate "Tosa keyboard"
-        depends on MACH_TOSA
-        default y
+config KEYBOARD_EP93XX
+        tristate "EP93xx Matrix Keypad support"
+        depends on ARCH_EP93XX
         help
-          Say Y here to enable the keyboard on the Sharp Zaurus SL-6000x (Tosa)
+          Say Y here to enable the matrix keypad on the Cirrus EP93XX.
 
           To compile this driver as a module, choose M here: the
-          module will be called tosakbd.
+          module will be called ep93xx_keypad.
 
-config KEYBOARD_TOSA_USE_EXT_KEYCODES
-        bool "Tosa keyboard: use extended keycodes"
-        depends on KEYBOARD_TOSA
-        default n
+config KEYBOARD_GPIO
+        tristate "GPIO Buttons"
+        depends on GENERIC_GPIO
         help
-          Say Y here to enable the tosa keyboard driver to generate extended
-          (>= 127) keycodes. Be aware, that they can't be correctly interpreted
-          by either console keyboard driver or by Kdrive keybd driver.
-
-          Say Y only if you know, what you are doing!
+          This driver implements support for buttons connected
+          to GPIO pins of various CPUs (and some other chips).
 
-config KEYBOARD_AMIGA
-        tristate "Amiga keyboard"
-        depends on AMIGA
-        help
-          Say Y here if you are running Linux on any AMIGA and have a keyboard
-          attached.
+          Say Y here if your device has buttons connected
+          directly to such GPIO pins.  Your board-specific
+          setup logic must also provide a platform device,
+          with configuration data saying which GPIOs are used.
 
           To compile this driver as a module, choose M here: the
-          module will be called amikbd.
+          module will be called gpio_keys.
 
-config ATARI_KBD_CORE
-        bool
-
-config KEYBOARD_ATARI
-        tristate "Atari keyboard"
-        depends on ATARI
-        select ATARI_KBD_CORE
+config KEYBOARD_MATRIX
+        tristate "GPIO driven matrix keypad support"
+        depends on GENERIC_GPIO
         help
-          Say Y here if you are running Linux on any Atari and have a keyboard
-          attached.
+          Enable support for GPIO driven matrix keypad.
 
           To compile this driver as a module, choose M here: the
-          module will be called atakbd.
+          module will be called matrix_keypad.
 
 config KEYBOARD_HIL_OLD
         tristate "HP HIL keyboard support (simple driver)"
@@ -261,20 +231,39 @@ config KEYBOARD_LM8323
           To compile this driver as a module, choose M here: the
           module will be called lm8323.
 
-config KEYBOARD_OMAP
-        tristate "TI OMAP keypad support"
-        depends on (ARCH_OMAP1 || ARCH_OMAP2)
+config KEYBOARD_LOCOMO
+        tristate "LoCoMo Keyboard Support"
+        depends on SHARP_LOCOMO
         help
-          Say Y here if you want to use the OMAP keypad.
+          Say Y here if you are running Linux on a Sharp Zaurus Collie or Poodle based PDA
 
           To compile this driver as a module, choose M here: the
-          module will be called omap-keypad.
+          module will be called locomokbd.
+
+config KEYBOARD_MAPLE
+        tristate "Maple bus keyboard"
+        depends on SH_DREAMCAST && MAPLE
+        help
+          Say Y here if you have a Dreamcast console running Linux and have
+          a keyboard attached to its Maple bus.
+
+          To compile this driver as a module, choose M here: the
+          module will be called maple_keyb.
+
+config KEYBOARD_NEWTON
+        tristate "Newton keyboard"
+        select SERIO
+        help
+          Say Y here if you have a Newton keyboard on a serial port.
+
+          To compile this driver as a module, choose M here: the
+          module will be called newtonkbd.
 
 config KEYBOARD_PXA27x
         tristate "PXA27x/PXA3xx keypad support"
         depends on PXA27x || PXA3xx
         help
-          Enable support for PXA27x/PXA3xx keypad controller
+          Enable support for PXA27x/PXA3xx keypad controller.
 
           To compile this driver as a module, choose M here: the
           module will be called pxa27x_keypad.
@@ -288,51 +277,38 @@ config KEYBOARD_PXA930_ROTARY
           To compile this driver as a module, choose M here: the
           module will be called pxa930_rotary.
 
-config KEYBOARD_AAED2000
-        tristate "AAED-2000 keyboard"
-        depends on MACH_AAED2000
-        select INPUT_POLLDEV
+config KEYBOARD_SPITZ
+        tristate "Spitz keyboard"
+        depends on PXA_SHARPSL
         default y
         help
-          Say Y here to enable the keyboard on the Agilent AAED-2000
-          development board.
-
-          To compile this driver as a module, choose M here: the
-          module will be called aaed2000_kbd.
-
-config KEYBOARD_GPIO
-        tristate "GPIO Buttons"
-        depends on GENERIC_GPIO
-        help
-          This driver implements support for buttons connected
-          to GPIO pins of various CPUs (and some other chips).
-
-          Say Y here if your device has buttons connected
-          directly to such GPIO pins.  Your board-specific
-          setup logic must also provide a platform device,
-          with configuration data saying which GPIOs are used.
+          Say Y here to enable the keyboard on the Sharp Zaurus SL-C1000,
+          SL-C3000 and Sl-C3100 series of PDAs.
 
           To compile this driver as a module, choose M here: the
-          module will be called gpio-keys.
+          module will be called spitzkbd.
 
-config KEYBOARD_MAPLE
-        tristate "Maple bus keyboard"
-        depends on SH_DREAMCAST && MAPLE
+config KEYBOARD_STOWAWAY
+        tristate "Stowaway keyboard"
+        select SERIO
         help
-          Say Y here if you have a Dreamcast console running Linux and have
-          a keyboard attached to its Maple bus.
+          Say Y here if you have a Stowaway keyboard on a serial port.
+          Stowaway compatible keyboards like Dicota Input-PDA keyboard
+          are also supported by this driver.
 
           To compile this driver as a module, choose M here: the
-          module will be called maple_keyb.
+          module will be called stowaway.
 
-config KEYBOARD_BFIN
-        tristate "Blackfin BF54x keypad support"
-        depends on (BF54x && !BF544)
+config KEYBOARD_SUNKBD
+        tristate "Sun Type 4 and Type 5 keyboard"
+        select SERIO
         help
-          Say Y here if you want to use the BF54x keypad.
+          Say Y here if you want to use a Sun Type 4 or Type 5 keyboard,
+          connected either to the Sun keyboard connector or to an serial
+          (RS-232) port via a simple adapter.
 
           To compile this driver as a module, choose M here: the
-          module will be called bf54x-keys.
+          module will be called sunkbd.
 
 config KEYBOARD_SH_KEYSC
         tristate "SuperH KEYSC keypad support"
@@ -344,13 +320,45 @@ config KEYBOARD_SH_KEYSC
           To compile this driver as a module, choose M here: the
           module will be called sh_keysc.
 
-config KEYBOARD_EP93XX
-        tristate "EP93xx Matrix Keypad support"
-        depends on ARCH_EP93XX
+config KEYBOARD_OMAP
+        tristate "TI OMAP keypad support"
+        depends on (ARCH_OMAP1 || ARCH_OMAP2)
         help
-          Say Y here to enable the matrix keypad on the Cirrus EP93XX.
+          Say Y here if you want to use the OMAP keypad.
 
           To compile this driver as a module, choose M here: the
-          module will be called ep93xx_keypad.
+          module will be called omap-keypad.
+
+config KEYBOARD_TOSA
+        tristate "Tosa keyboard"
+        depends on MACH_TOSA
+        default y
+        help
+          Say Y here to enable the keyboard on the Sharp Zaurus SL-6000x (Tosa)
+
+          To compile this driver as a module, choose M here: the
+          module will be called tosakbd.
+
+config KEYBOARD_TOSA_USE_EXT_KEYCODES
+        bool "Tosa keyboard: use extended keycodes"
+        depends on KEYBOARD_TOSA
+        help
+          Say Y here to enable the tosa keyboard driver to generate extended
+          (>= 127) keycodes. Be aware, that they can't be correctly interpreted
+          by either console keyboard driver or by Kdrive keybd driver.
+
+          Say Y only if you know, what you are doing!
+
+config KEYBOARD_XTKBD
+        tristate "XT keyboard"
+        select SERIO
+        help
+          Say Y here if you want to use the old IBM PC/XT keyboard (or
+          compatible) on your system. This is only possible with a
+          parallel port keyboard adapter, you cannot connect it to the
+          keyboard port on a PC that runs Linux.
+
+          To compile this driver as a module, choose M here: the
+          module will be called xtkbd.
 
 endif
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index 156b647a259b..b5b5eae9724f 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -4,29 +4,30 @@
 
 # Each configuration option enables a list of files.
 
-obj-$(CONFIG_KEYBOARD_ATKBD)            += atkbd.o
-obj-$(CONFIG_KEYBOARD_SUNKBD)           += sunkbd.o
-obj-$(CONFIG_KEYBOARD_LKKBD)            += lkkbd.o
-obj-$(CONFIG_KEYBOARD_XTKBD)            += xtkbd.o
+obj-$(CONFIG_KEYBOARD_AAED2000)         += aaed2000_kbd.o
 obj-$(CONFIG_KEYBOARD_AMIGA)            += amikbd.o
 obj-$(CONFIG_KEYBOARD_ATARI)            += atakbd.o
-obj-$(CONFIG_KEYBOARD_LOCOMO)           += locomokbd.o
-obj-$(CONFIG_KEYBOARD_NEWTON)           += newtonkbd.o
-obj-$(CONFIG_KEYBOARD_STOWAWAY)         += stowaway.o
+obj-$(CONFIG_KEYBOARD_ATKBD)            += atkbd.o
+obj-$(CONFIG_KEYBOARD_BFIN)             += bf54x-keys.o
 obj-$(CONFIG_KEYBOARD_CORGI)            += corgikbd.o
-obj-$(CONFIG_KEYBOARD_SPITZ)            += spitzkbd.o
-obj-$(CONFIG_KEYBOARD_TOSA)             += tosakbd.o
+obj-$(CONFIG_KEYBOARD_EP93XX)           += ep93xx_keypad.o
+obj-$(CONFIG_KEYBOARD_GPIO)             += gpio_keys.o
 obj-$(CONFIG_KEYBOARD_HIL)              += hil_kbd.o
 obj-$(CONFIG_KEYBOARD_HIL_OLD)          += hilkbd.o
+obj-$(CONFIG_KEYBOARD_HP6XX)            += jornada680_kbd.o
+obj-$(CONFIG_KEYBOARD_HP7XX)            += jornada720_kbd.o
+obj-$(CONFIG_KEYBOARD_LKKBD)            += lkkbd.o
 obj-$(CONFIG_KEYBOARD_LM8323)           += lm8323.o
+obj-$(CONFIG_KEYBOARD_LOCOMO)           += locomokbd.o
+obj-$(CONFIG_KEYBOARD_MAPLE)            += maple_keyb.o
+obj-$(CONFIG_KEYBOARD_MATRIX)           += matrix_keypad.o
+obj-$(CONFIG_KEYBOARD_NEWTON)           += newtonkbd.o
 obj-$(CONFIG_KEYBOARD_OMAP)             += omap-keypad.o
 obj-$(CONFIG_KEYBOARD_PXA27x)           += pxa27x_keypad.o
 obj-$(CONFIG_KEYBOARD_PXA930_ROTARY)    += pxa930_rotary.o
-obj-$(CONFIG_KEYBOARD_AAED2000)         += aaed2000_kbd.o
-obj-$(CONFIG_KEYBOARD_GPIO)             += gpio_keys.o
-obj-$(CONFIG_KEYBOARD_HP6XX)            += jornada680_kbd.o
-obj-$(CONFIG_KEYBOARD_HP7XX)            += jornada720_kbd.o
-obj-$(CONFIG_KEYBOARD_MAPLE)            += maple_keyb.o
-obj-$(CONFIG_KEYBOARD_BFIN)             += bf54x-keys.o
 obj-$(CONFIG_KEYBOARD_SH_KEYSC)         += sh_keysc.o
-obj-$(CONFIG_KEYBOARD_EP93XX)           += ep93xx_keypad.o
+obj-$(CONFIG_KEYBOARD_SPITZ)            += spitzkbd.o
+obj-$(CONFIG_KEYBOARD_STOWAWAY)         += stowaway.o
+obj-$(CONFIG_KEYBOARD_SUNKBD)           += sunkbd.o
+obj-$(CONFIG_KEYBOARD_TOSA)             += tosakbd.o
+obj-$(CONFIG_KEYBOARD_XTKBD)            += xtkbd.o
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index df3f8aa68115..95fe0452dae4 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -895,6 +895,13 @@ static unsigned int atkbd_amilo_pa1510_forced_release_keys[] = {
 };
 
 /*
+ * Amilo Pi 3525 key release for Fn+Volume keys not working
+ */
+static unsigned int atkbd_amilo_pi3525_forced_release_keys[] = {
+        0x20, 0xa0, 0x2e, 0xae, 0x30, 0xb0, -1U
+};
+
+/*
  * Amilo Xi 3650 key release for light touch bar not working
  */
 static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = {
@@ -902,6 +909,13 @@ static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = {
 };
 
 /*
+ * Soltech TA12 system with broken key release on volume keys and mute key
+ */
+static unsigned int atkdb_soltech_ta12_forced_release_keys[] = {
+        0xa0, 0xae, 0xb0, -1U
+};
+
+/*
  * atkbd_set_keycode_table() initializes keyboard's keycode table
  * according to the selected scancode set
  */
@@ -1568,6 +1582,15 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
                 .driver_data = atkbd_amilo_pa1510_forced_release_keys,
         },
         {
+                .ident = "Fujitsu Amilo Pi 3525",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"),
+                },
+                .callback = atkbd_setup_forced_release,
+                .driver_data = atkbd_amilo_pi3525_forced_release_keys,
+        },
+        {
                 .ident = "Fujitsu Amilo Xi 3650",
                 .matches = {
                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
@@ -1576,6 +1599,15 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
                 .callback = atkbd_setup_forced_release,
                 .driver_data = atkbd_amilo_xi3650_forced_release_keys,
         },
+        {
+                .ident = "Soltech Corporation TA12",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "TA12"),
+                },
+                .callback = atkbd_setup_forced_release,
+                .driver_data = atkdb_soltech_ta12_forced_release_keys,
+        },
         { }
 };
 
diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index 2157cd7de00c..efed0c9e242e 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -29,7 +29,8 @@
 struct gpio_button_data {
         struct gpio_keys_button *button;
         struct input_dev *input;
-        struct delayed_work work;
+        struct timer_list timer;
+        struct work_struct work;
 };
 
 struct gpio_keys_drvdata {
@@ -40,7 +41,7 @@ struct gpio_keys_drvdata {
 static void gpio_keys_report_event(struct work_struct *work)
 {
         struct gpio_button_data *bdata =
-                container_of(work, struct gpio_button_data, work.work);
+                container_of(work, struct gpio_button_data, work);
         struct gpio_keys_button *button = bdata->button;
         struct input_dev *input = bdata->input;
         unsigned int type = button->type ?: EV_KEY;
@@ -50,17 +51,25 @@ static void gpio_keys_report_event(struct work_struct *work)
         input_sync(input);
 }
 
+static void gpio_keys_timer(unsigned long _data)
+{
+        struct gpio_button_data *data = (struct gpio_button_data *)_data;
+
+        schedule_work(&data->work);
+}
+
 static irqreturn_t gpio_keys_isr(int irq, void *dev_id)
 {
         struct gpio_button_data *bdata = dev_id;
         struct gpio_keys_button *button = bdata->button;
-        unsigned long delay;
 
         BUG_ON(irq != gpio_to_irq(button->gpio));
 
-        delay = button->debounce_interval ?
-                        msecs_to_jiffies(button->debounce_interval) : 0;
-        schedule_delayed_work(&bdata->work, delay);
+        if (button->debounce_interval)
+                mod_timer(&bdata->timer,
+                        jiffies + msecs_to_jiffies(button->debounce_interval));
+        else
+                schedule_work(&bdata->work);
 
         return IRQ_HANDLED;
 }
@@ -107,7 +116,9 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev)
 
                 bdata->input = input;
                 bdata->button = button;
-                INIT_DELAYED_WORK(&bdata->work, gpio_keys_report_event);
+                setup_timer(&bdata->timer,
+                            gpio_keys_timer, (unsigned long)bdata);
+                INIT_WORK(&bdata->work, gpio_keys_report_event);
 
                 error = gpio_request(button->gpio, button->desc ?: "gpio_keys");
                 if (error < 0) {
@@ -166,7 +177,9 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev)
  fail2:
         while (--i >= 0) {
                 free_irq(gpio_to_irq(pdata->buttons[i].gpio), &ddata->data[i]);
-                cancel_delayed_work_sync(&ddata->data[i].work);
+                if (pdata->buttons[i].debounce_interval)
+                        del_timer_sync(&ddata->data[i].timer);
+                cancel_work_sync(&ddata->data[i].work);
                 gpio_free(pdata->buttons[i].gpio);
         }
 
@@ -190,7 +203,9 @@ static int __devexit gpio_keys_remove(struct platform_device *pdev)
         for (i = 0; i < pdata->nbuttons; i++) {
                 int irq = gpio_to_irq(pdata->buttons[i].gpio);
                 free_irq(irq, &ddata->data[i]);
-                cancel_delayed_work_sync(&ddata->data[i].work);
+                if (pdata->buttons[i].debounce_interval)
+                        del_timer_sync(&ddata->data[i].timer);
+                cancel_work_sync(&ddata->data[i].work);
                 gpio_free(pdata->buttons[i].gpio);
         }
 
diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c
new file mode 100644
index 000000000000..541b981ff075
--- /dev/null
+++ b/drivers/input/keyboard/matrix_keypad.c
@@ -0,0 +1,453 @@
+/*
+ *  GPIO driven matrix keyboard driver
+ *
+ *  Copyright (c) 2008 Marek Vasut <marek.vasut@gmail.com>
+ *
+ *  Based on corgikbd.c
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/jiffies.h>
+#include <linux/module.h>
+#include <linux/gpio.h>
+#include <linux/input/matrix_keypad.h>
+
+struct matrix_keypad {
+        const struct matrix_keypad_platform_data *pdata;
+        struct input_dev *input_dev;
+        unsigned short *keycodes;
+        unsigned int row_shift;
+
+        uint32_t last_key_state[MATRIX_MAX_COLS];
+        struct delayed_work work;
+        bool scan_pending;
+        bool stopped;
+        spinlock_t lock;
+};
+
+/*
+ * NOTE: normally the GPIO has to be put into HiZ when de-activated to cause
+ * minmal side effect when scanning other columns, here it is configured to
+ * be input, and it should work on most platforms.
+ */
+static void __activate_col(const struct matrix_keypad_platform_data *pdata,
+                           int col, bool on)
+{
+        bool level_on = !pdata->active_low;
+
+        if (on) {
+                gpio_direction_output(pdata->col_gpios[col], level_on);
+        } else {
+                gpio_set_value_cansleep(pdata->col_gpios[col], !level_on);
+                gpio_direction_input(pdata->col_gpios[col]);
+        }
+}
+
+static void activate_col(const struct matrix_keypad_platform_data *pdata,
+                         int col, bool on)
+{
+        __activate_col(pdata, col, on);
+
+        if (on && pdata->col_scan_delay_us)
+                udelay(pdata->col_scan_delay_us);
+}
+
+static void activate_all_cols(const struct matrix_keypad_platform_data *pdata,
+                              bool on)
+{
+        int col;
+
+        for (col = 0; col < pdata->num_col_gpios; col++)
+                __activate_col(pdata, col, on);
+}
+
+static bool row_asserted(const struct matrix_keypad_platform_data *pdata,
+                         int row)
+{
+        return gpio_get_value_cansleep(pdata->row_gpios[row]) ?
+                        !pdata->active_low : pdata->active_low;
+}
+
+static void enable_row_irqs(struct matrix_keypad *keypad)
+{
+        const struct matrix_keypad_platform_data *pdata = keypad->pdata;
+        int i;
+
+        for (i = 0; i < pdata->num_row_gpios; i++)
+                enable_irq(gpio_to_irq(pdata->row_gpios[i]));
+}
+
+static void disable_row_irqs(struct matrix_keypad *keypad)
+{
+        const struct matrix_keypad_platform_data *pdata = keypad->pdata;
+        int i;
+
+        for (i = 0; i < pdata->num_row_gpios; i++)
+                disable_irq_nosync(gpio_to_irq(pdata->row_gpios[i]));
+}
+
+/*
+ * This gets the keys from keyboard and reports it to input subsystem
+ */
+static void matrix_keypad_scan(struct work_struct *work)
+{
+        struct matrix_keypad *keypad =
+                container_of(work, struct matrix_keypad, work.work);
+        struct input_dev *input_dev = keypad->input_dev;
+        const struct matrix_keypad_platform_data *pdata = keypad->pdata;
+        uint32_t new_state[MATRIX_MAX_COLS];
+        int row, col, code;
+
+        /* de-activate all columns for scanning */
+        activate_all_cols(pdata, false);
+
+        memset(new_state, 0, sizeof(new_state));
+
+        /* assert each column and read the row status out */
+        for (col = 0; col < pdata->num_col_gpios; col++) {
+
+                activate_col(pdata, col, true);
+
+                for (row = 0; row < pdata->num_row_gpios; row++)
+                        new_state[col] |=
+                                row_asserted(pdata, row) ? (1 << row) : 0;
+
+                activate_col(pdata, col, false);
+        }
+
+        for (col = 0; col < pdata->num_col_gpios; col++) {
+                uint32_t bits_changed;
+
+                bits_changed = keypad->last_key_state[col] ^ new_state[col];
+                if (bits_changed == 0)
+                        continue;
+
+                for (row = 0; row < pdata->num_row_gpios; row++) {
+                        if ((bits_changed & (1 << row)) == 0)
+                                continue;
+
+                        code = MATRIX_SCAN_CODE(row, col, keypad->row_shift);
+                        input_event(input_dev, EV_MSC, MSC_SCAN, code);
+                        input_report_key(input_dev,
+                                         keypad->keycodes[code],
+                                         new_state[col] & (1 << row));
+                }
+        }
+        input_sync(input_dev);
+
+        memcpy(keypad->last_key_state, new_state, sizeof(new_state));
+
+        activate_all_cols(pdata, true);
+
+        /* Enable IRQs again */
+        spin_lock_irq(&keypad->lock);
+        keypad->scan_pending = false;
+        enable_row_irqs(keypad);
+        spin_unlock_irq(&keypad->lock);
+}
+
+static irqreturn_t matrix_keypad_interrupt(int irq, void *id)
+{
+        struct matrix_keypad *keypad = id;
+        unsigned long flags;
+
+        spin_lock_irqsave(&keypad->lock, flags);
+
+        /*
+         * See if another IRQ beaten us to it and scheduled the
+         * scan already. In that case we should not try to
+         * disable IRQs again.
+         */
+        if (unlikely(keypad->scan_pending || keypad->stopped))
+                goto out;
+
+        disable_row_irqs(keypad);
+        keypad->scan_pending = true;
+        schedule_delayed_work(&keypad->work,
+                msecs_to_jiffies(keypad->pdata->debounce_ms));
+
+out:
+        spin_unlock_irqrestore(&keypad->lock, flags);
+        return IRQ_HANDLED;
+}
+
+static int matrix_keypad_start(struct input_dev *dev)
+{
+        struct matrix_keypad *keypad = input_get_drvdata(dev);
+
+        keypad->stopped = false;
+        mb();
+
+        /*
+         * Schedule an immediate key scan to capture current key state;
+         * columns will be activated and IRQs be enabled after the scan.
+         */
+        schedule_delayed_work(&keypad->work, 0);
+
+        return 0;
+}
+
+static void matrix_keypad_stop(struct input_dev *dev)
+{
+        struct matrix_keypad *keypad = input_get_drvdata(dev);
+
+        keypad->stopped = true;
+        mb();
+        flush_work(&keypad->work.work);
+        /*
+         * matrix_keypad_scan() will leave IRQs enabled;
+         * we should disable them now.
+         */
+        disable_row_irqs(keypad);
+}
+
+#ifdef CONFIG_PM
+static int matrix_keypad_suspend(struct platform_device *pdev, pm_message_t state)
+{
+        struct matrix_keypad *keypad = platform_get_drvdata(pdev);
+        const struct matrix_keypad_platform_data *pdata = keypad->pdata;
+        int i;
+
+        matrix_keypad_stop(keypad->input_dev);
+
+        if (device_may_wakeup(&pdev->dev))
+                for (i = 0; i < pdata->num_row_gpios; i++)
+                        enable_irq_wake(gpio_to_irq(pdata->row_gpios[i]));
+
+        return 0;
+}
+
+static int matrix_keypad_resume(struct platform_device *pdev)
+{
+        struct matrix_keypad *keypad = platform_get_drvdata(pdev);
+        const struct matrix_keypad_platform_data *pdata = keypad->pdata;
+        int i;
+
+        if (device_may_wakeup(&pdev->dev))
+                for (i = 0; i < pdata->num_row_gpios; i++)
+                        disable_irq_wake(gpio_to_irq(pdata->row_gpios[i]));
+
+        matrix_keypad_start(keypad->input_dev);
+
+        return 0;
+}
+#else
+#define matrix_keypad_suspend   NULL
+#define matrix_keypad_resume    NULL
+#endif
+
+static int __devinit init_matrix_gpio(struct platform_device *pdev,
+                                        struct matrix_keypad *keypad)
+{
+        const struct matrix_keypad_platform_data *pdata = keypad->pdata;
+        int i, err = -EINVAL;
+
+        /* initialized strobe lines as outputs, activated */
+        for (i = 0; i < pdata->num_col_gpios; i++) {
+                err = gpio_request(pdata->col_gpios[i], "matrix_kbd_col");
+                if (err) {
+                        dev_err(&pdev->dev,
+                                "failed to request GPIO%d for COL%d\n",
+                                pdata->col_gpios[i], i);
+                        goto err_free_cols;
+                }
+
+                gpio_direction_output(pdata->col_gpios[i], !pdata->active_low);
+        }
+
+        for (i = 0; i < pdata->num_row_gpios; i++) {
+                err = gpio_request(pdata->row_gpios[i], "matrix_kbd_row");
+                if (err) {
+                        dev_err(&pdev->dev,
+                                "failed to request GPIO%d for ROW%d\n",
+                                pdata->row_gpios[i], i);
+                        goto err_free_rows;
+                }
+
+                gpio_direction_input(pdata->row_gpios[i]);
+        }
+
+        for (i = 0; i < pdata->num_row_gpios; i++) {
+                err = request_irq(gpio_to_irq(pdata->row_gpios[i]),
+                                matrix_keypad_interrupt,
+                                IRQF_DISABLED |
+                                IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+                                "matrix-keypad", keypad);
+                if (err) {
+                        dev_err(&pdev->dev,
+                                "Unable to acquire interrupt for GPIO line %i\n",
+                                pdata->row_gpios[i]);
+                        goto err_free_irqs;
+                }
+        }
+
+        /* initialized as disabled - enabled by input->open */
+        disable_row_irqs(keypad);
+        return 0;
+
+err_free_irqs:
+        while (--i >= 0)
+                free_irq(gpio_to_irq(pdata->row_gpios[i]), keypad);
+        i = pdata->num_row_gpios;
+err_free_rows:
+        while (--i >= 0)
+                gpio_free(pdata->row_gpios[i]);
+        i = pdata->num_col_gpios;
+err_free_cols:
+        while (--i >= 0)
+                gpio_free(pdata->col_gpios[i]);
+
+        return err;
+}
+
+static int __devinit matrix_keypad_probe(struct platform_device *pdev)
+{
+        const struct matrix_keypad_platform_data *pdata;
+        const struct matrix_keymap_data *keymap_data;
+        struct matrix_keypad *keypad;
+        struct input_dev *input_dev;
+        unsigned short *keycodes;
+        unsigned int row_shift;
+        int i;
+        int err;
+
+        pdata = pdev->dev.platform_data;
+        if (!pdata) {
+                dev_err(&pdev->dev, "no platform data defined\n");
+                return -EINVAL;
+        }
+
+        keymap_data = pdata->keymap_data;
+        if (!keymap_data) {
+                dev_err(&pdev->dev, "no keymap data defined\n");
+                return -EINVAL;
+        }
+
+        row_shift = get_count_order(pdata->num_col_gpios);
+
+        keypad = kzalloc(sizeof(struct matrix_keypad), GFP_KERNEL);
+        keycodes = kzalloc((pdata->num_row_gpios << row_shift) *
+                                sizeof(*keycodes),
+                           GFP_KERNEL);
+        input_dev = input_allocate_device();
+        if (!keypad || !keycodes || !input_dev) {
+                err = -ENOMEM;
+                goto err_free_mem;
+        }
+
+        keypad->input_dev = input_dev;
+        keypad->pdata = pdata;
+        keypad->keycodes = keycodes;
+        keypad->row_shift = row_shift;
+        keypad->stopped = true;
+        INIT_DELAYED_WORK(&keypad->work, matrix_keypad_scan);
+        spin_lock_init(&keypad->lock);
+
+        input_dev->name         = pdev->name;
+        input_dev->id.bustype   = BUS_HOST;
+        input_dev->dev.parent   = &pdev->dev;
+        input_dev->evbit[0]     = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+        input_dev->open         = matrix_keypad_start;
+        input_dev->close        = matrix_keypad_stop;
+
+        input_dev->keycode      = keycodes;
+        input_dev->keycodesize  = sizeof(*keycodes);
+        input_dev->keycodemax   = pdata->num_row_gpios << keypad->row_shift;
+
+        for (i = 0; i < keymap_data->keymap_size; i++) {
+                unsigned int key = keymap_data->keymap[i];
+                unsigned int row = KEY_ROW(key);
+                unsigned int col = KEY_COL(key);
+                unsigned short code = KEY_VAL(key);
+
+                keycodes[MATRIX_SCAN_CODE(row, col, row_shift)] = code;
+                __set_bit(code, input_dev->keybit);
+        }
+        __clear_bit(KEY_RESERVED, input_dev->keybit);
+
+        input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+        input_set_drvdata(input_dev, keypad);
+
+        err = init_matrix_gpio(pdev, keypad);
+        if (err)
+                goto err_free_mem;
+
+        err = input_register_device(keypad->input_dev);
+        if (err)
+                goto err_free_mem;
+
+        device_init_wakeup(&pdev->dev, pdata->wakeup);
+        platform_set_drvdata(pdev, keypad);
+
+        return 0;
+
+err_free_mem:
+        input_free_device(input_dev);
+        kfree(keycodes);
+        kfree(keypad);
+        return err;
+}
+
+static int __devexit matrix_keypad_remove(struct platform_device *pdev)
+{
+        struct matrix_keypad *keypad = platform_get_drvdata(pdev);
+        const struct matrix_keypad_platform_data *pdata = keypad->pdata;
+        int i;
+
+        device_init_wakeup(&pdev->dev, 0);
+
+        for (i = 0; i < pdata->num_row_gpios; i++) {
+                free_irq(gpio_to_irq(pdata->row_gpios[i]), keypad);
+                gpio_free(pdata->row_gpios[i]);
+        }
+
+        for (i = 0; i < pdata->num_col_gpios; i++)
+                gpio_free(pdata->col_gpios[i]);
+
+        input_unregister_device(keypad->input_dev);
+        platform_set_drvdata(pdev, NULL);
+        kfree(keypad->keycodes);
+        kfree(keypad);
+
+        return 0;
+}
+
+static struct platform_driver matrix_keypad_driver = {
+        .probe          = matrix_keypad_probe,
+        .remove         = __devexit_p(matrix_keypad_remove),
+        .suspend        = matrix_keypad_suspend,
+        .resume         = matrix_keypad_resume,
+        .driver         = {
+                .name   = "matrix-keypad",
+                .owner  = THIS_MODULE,
+        },
+};
+
+static int __init matrix_keypad_init(void)
+{
+        return platform_driver_register(&matrix_keypad_driver);
+}
+
+static void __exit matrix_keypad_exit(void)
+{
+        platform_driver_unregister(&matrix_keypad_driver);
+}
+
+module_init(matrix_keypad_init);
+module_exit(matrix_keypad_exit);
+
+MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
+MODULE_DESCRIPTION("GPIO Driven Matrix Keypad Driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:matrix-keypad");
diff --git a/drivers/input/misc/cobalt_btns.c b/drivers/input/misc/cobalt_btns.c
index 2adf9cb265da..d114d3a9e1e9 100644
--- a/drivers/input/misc/cobalt_btns.c
+++ b/drivers/input/misc/cobalt_btns.c
@@ -1,7 +1,7 @@
 /*
  *  Cobalt button interface driver.
  *
- *  Copyright (C) 2007-2008  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ *  Copyright (C) 2007-2008  Yoichi Yuasa <yuasa@linux-mips.org>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -148,7 +148,7 @@ static int __devexit cobalt_buttons_remove(struct platform_device *pdev)
         return 0;
 }
 
-MODULE_AUTHOR("Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>");
+MODULE_AUTHOR("Yoichi Yuasa <yuasa@linux-mips.org>");
 MODULE_DESCRIPTION("Cobalt button interface driver");
 MODULE_LICENSE("GPL");
 /* work with hotplug and coldplug */
diff --git a/drivers/input/misc/pcspkr.c b/drivers/input/misc/pcspkr.c
index 6d67af5387ad..21cb755a54fb 100644
--- a/drivers/input/misc/pcspkr.c
+++ b/drivers/input/misc/pcspkr.c
@@ -114,7 +114,7 @@ static int __devexit pcspkr_remove(struct platform_device *dev)
         return 0;
 }
 
-static int pcspkr_suspend(struct platform_device *dev, pm_message_t state)
+static int pcspkr_suspend(struct device *dev)
 {
         pcspkr_event(NULL, EV_SND, SND_BELL, 0);
 
@@ -127,14 +127,18 @@ static void pcspkr_shutdown(struct platform_device *dev)
         pcspkr_event(NULL, EV_SND, SND_BELL, 0);
 }
 
+static struct dev_pm_ops pcspkr_pm_ops = {
+        .suspend = pcspkr_suspend,
+};
+
 static struct platform_driver pcspkr_platform_driver = {
         .driver         = {
                 .name   = "pcspkr",
                 .owner  = THIS_MODULE,
+                .pm     = &pcspkr_pm_ops,
         },
         .probe          = pcspkr_probe,
         .remove         = __devexit_p(pcspkr_remove),
-        .suspend        = pcspkr_suspend,
         .shutdown       = pcspkr_shutdown,
 };
 
diff --git a/drivers/input/misc/wistron_btns.c b/drivers/input/misc/wistron_btns.c
index 7c8957dd22c0..27ee976eb54c 100644
--- a/drivers/input/misc/wistron_btns.c
+++ b/drivers/input/misc/wistron_btns.c
@@ -611,6 +611,20 @@ static struct key_entry keymap_wistron_generic[] __initdata = {
         { KE_END, 0 }
 };
 
+static struct key_entry keymap_prestigio[] __initdata = {
+        { KE_KEY,  0x11, {KEY_PROG1} },
+        { KE_KEY,  0x12, {KEY_PROG2} },
+        { KE_WIFI,  0x30 },
+        { KE_KEY,  0x22, {KEY_REWIND} },
+        { KE_KEY,  0x23, {KEY_FORWARD} },
+        { KE_KEY,  0x24, {KEY_PLAYPAUSE} },
+        { KE_KEY,  0x25, {KEY_STOPCD} },
+        { KE_KEY,  0x31, {KEY_MAIL} },
+        { KE_KEY,  0x36, {KEY_WWW} },
+        { KE_END,  0 }
+};
+
+
 /*
  * If your machine is not here (which is currently rather likely), please send
  * a list of buttons and their key codes (reported when loading this module
@@ -646,6 +660,15 @@ static struct dmi_system_id dmi_ids[] __initdata = {
         },
         {
                 .callback = dmi_matched,
+                .ident = "Maxdata Pro 7000 DX",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "MAXDATA"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "Pro 7000"),
+                },
+                .driver_data = keymap_fs_amilo_pro_v2000
+        },
+        {
+                .callback = dmi_matched,
                 .ident = "Fujitsu N3510",
                 .matches = {
                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
@@ -962,6 +985,8 @@ static int __init select_keymap(void)
         if (keymap_name != NULL) {
                 if (strcmp (keymap_name, "1557/MS2141") == 0)
                         keymap = keymap_wistron_ms2141;
+                else if (strcmp (keymap_name, "prestigio") == 0)
+                        keymap = keymap_prestigio;
                 else if (strcmp (keymap_name, "generic") == 0)
                         keymap = keymap_wistron_generic;
                 else {
diff --git a/drivers/input/mouse/gpio_mouse.c b/drivers/input/mouse/gpio_mouse.c
index 5e5eb88d8d1e..7b6ce178f1b6 100644
--- a/drivers/input/mouse/gpio_mouse.c
+++ b/drivers/input/mouse/gpio_mouse.c
@@ -46,7 +46,7 @@ static void gpio_mouse_scan(struct input_polled_dev *dev)
         input_sync(input);
 }
 
-static int __init gpio_mouse_probe(struct platform_device *pdev)
+static int __devinit gpio_mouse_probe(struct platform_device *pdev)
 {
         struct gpio_mouse_platform_data *pdata = pdev->dev.platform_data;
         struct input_polled_dev *input_poll;
@@ -170,10 +170,8 @@ static int __devexit gpio_mouse_remove(struct platform_device *pdev)
         return 0;
 }
 
-/* work with hotplug and coldplug */
-MODULE_ALIAS("platform:gpio_mouse");
-
 static struct platform_driver gpio_mouse_device_driver = {
+        .probe          = gpio_mouse_probe,
         .remove         = __devexit_p(gpio_mouse_remove),
         .driver         = {
                 .name   = "gpio_mouse",
@@ -183,8 +181,7 @@ static struct platform_driver gpio_mouse_device_driver = {
 
 static int __init gpio_mouse_init(void)
 {
-        return platform_driver_probe(&gpio_mouse_device_driver,
-                        gpio_mouse_probe);
+        return platform_driver_register(&gpio_mouse_device_driver);
 }
 module_init(gpio_mouse_init);
 
@@ -197,3 +194,5 @@ module_exit(gpio_mouse_exit);
 MODULE_AUTHOR("Hans-Christian Egtvedt <hcegtvedt@atmel.com>");
 MODULE_DESCRIPTION("GPIO mouse driver");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:gpio_mouse"); /* work with hotplug and coldplug */
+
diff --git a/drivers/input/serio/hp_sdc_mlc.c b/drivers/input/serio/hp_sdc_mlc.c
index b587e2d576ac..820e51673b26 100644
--- a/drivers/input/serio/hp_sdc_mlc.c
+++ b/drivers/input/serio/hp_sdc_mlc.c
@@ -296,7 +296,7 @@ static void hp_sdc_mlc_out(hil_mlc *mlc)
         priv->tseq[3] = 0;
         if (mlc->opacket & HIL_CTRL_APE) {
                 priv->tseq[3] |= HP_SDC_LPC_APE_IPF;
-                down_trylock(&mlc->csem);
+                BUG_ON(down_trylock(&mlc->csem));
         }
  enqueue:
         hp_sdc_enqueue_transaction(&priv->trans);
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index fb8a3cd3ffd0..ae04d8a494e5 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -78,6 +78,14 @@ static struct dmi_system_id __initdata i8042_dmi_noloop_table[] = {
                 },
         },
         {
+                .ident = "ASUS G1S",
+                .matches = {
+                        DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer Inc."),
+                        DMI_MATCH(DMI_BOARD_NAME, "G1S"),
+                        DMI_MATCH(DMI_BOARD_VERSION, "1.0"),
+                },
+        },
+        {
                 /* AUX LOOP command does not raise AUX IRQ */
                 .ident = "ASUS P65UP5",
                 .matches = {
@@ -392,6 +400,34 @@ static struct dmi_system_id __initdata i8042_dmi_reset_table[] = {
                         DMI_MATCH(DMI_BOARD_VENDOR, "LG Electronics Inc."),
                 },
         },
+        {
+                .ident = "Acer Aspire One 150",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
+                },
+        },
+        {
+                .ident = "Advent 4211",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "DIXONSXP"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "Advent 4211"),
+                },
+        },
+        {
+                .ident = "Medion Akoya Mini E1210",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "E1210"),
+                },
+        },
+        {
+                .ident = "Mivvy M310",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "VIOOO"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "N10"),
+                },
+        },
         { }
 };
 
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index f919bf57293c..582245c497eb 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -934,10 +934,11 @@ static bool i8042_suspended;
 
 static int i8042_suspend(struct platform_device *dev, pm_message_t state)
 {
-        if (!i8042_suspended && state.event == PM_EVENT_SUSPEND) {
+        if (!i8042_suspended && state.event == PM_EVENT_SUSPEND)
                 i8042_controller_reset();
-                i8042_suspended = true;
-        }
+
+        i8042_suspended = state.event == PM_EVENT_SUSPEND ||
+                          state.event == PM_EVENT_FREEZE;
 
         return 0;
 }
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index fb17573f8f2d..d66f4944f2a0 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -935,10 +935,11 @@ static int serio_suspend(struct device *dev, pm_message_t state)
 {
         struct serio *serio = to_serio_port(dev);
 
-        if (!serio->suspended && state.event == PM_EVENT_SUSPEND) {
+        if (!serio->suspended && state.event == PM_EVENT_SUSPEND)
                 serio_cleanup(serio);
-                serio->suspended = true;
-        }
+
+        serio->suspended = state.event == PM_EVENT_SUSPEND ||
+                           state.event == PM_EVENT_FREEZE;
 
         return 0;
 }
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 38bf86384aeb..c896d6a21b7e 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -384,6 +384,8 @@ static int wacom_intuos_inout(struct wacom_wac *wacom, void *wcombo)
                         wacom_report_key(wcombo, BTN_STYLUS2, 0);
                         wacom_report_key(wcombo, BTN_TOUCH, 0);
                         wacom_report_abs(wcombo, ABS_WHEEL, 0);
+                        if (wacom->features->type >= INTUOS3S)
+                                wacom_report_abs(wcombo, ABS_Z, 0);
                 }
                 wacom_report_key(wcombo, wacom->tool[idx], 0);
                 wacom_report_abs(wcombo, ABS_MISC, 0); /* reset tool id */
@@ -836,6 +838,7 @@ static struct wacom_features wacom_features[] = {
         { "Wacom DTU710",        8,  34080, 27660,  511,  0, PL },
         { "Wacom DTF521",        8,   6282,  4762,  511,  0, PL },
         { "Wacom DTF720",        8,   6858,  5506,  511,  0, PL },
+        { "Wacom DTF720a",       8,   6858,  5506,  511,  0, PL },
         { "Wacom Cintiq Partner",8,  20480, 15360,  511,  0, PTU },
         { "Wacom Intuos2 4x5",   10, 12700, 10600, 1023, 31, INTUOS },
         { "Wacom Intuos2 6x8",   10, 20320, 16240, 1023, 31, INTUOS },
@@ -897,8 +900,9 @@ static struct usb_device_id wacom_ids[] = {
         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x37) },
         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x38) },
         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x39) },
-        { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC0) },
         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC4) },
+        { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC0) },
+        { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC2) },
         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x03) },
         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x41) },
         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x42) },
diff --git a/drivers/isdn/gigaset/ev-layer.c b/drivers/isdn/gigaset/ev-layer.c
index ec5169604a6a..2d91049571a4 100644
--- a/drivers/isdn/gigaset/ev-layer.c
+++ b/drivers/isdn/gigaset/ev-layer.c
@@ -294,32 +294,33 @@ struct reply_t gigaset_tab_cid[] =
         {RSP_OK,      604,604, -1,                605, 5, {ACT_CMD+AT_MSN}},
         {RSP_OK,      605,605, -1,                606, 5, {ACT_CMD+AT_ISO}},
         {RSP_NULL,    605,605, -1,                606, 5, {ACT_CMD+AT_ISO}},
-        {RSP_OK,      606,606, -1,                607, 5, {0},             "+VLS=17\r"}, /* set "Endgeraetemodus" */
+        {RSP_OK,      606,606, -1,                607, 5, {0}, "+VLS=17\r"},
         {RSP_OK,      607,607, -1,                608,-1},
-        //{RSP_ZSAU,    608,608,ZSAU_PROCEEDING,    608, 0, {ACT_ERROR}},//DELETE
         {RSP_ZSAU,    608,608,ZSAU_PROCEEDING,    609, 5, {ACT_CMD+AT_DIAL}},
         {RSP_OK,      609,609, -1,                650, 0, {ACT_DIALING}},
 
-        {RSP_ZVLS,    608,608, 17,                 -1,-1, {ACT_DEBUG}},
-        {RSP_ZCTP,    609,609, -1,                 -1,-1, {ACT_DEBUG}},
-        {RSP_ZCPN,    609,609, -1,                 -1,-1, {ACT_DEBUG}},
         {RSP_ERROR,   601,609, -1,                  0, 0, {ACT_ABORTDIAL}},
         {EV_TIMEOUT,  601,609, -1,                  0, 0, {ACT_ABORTDIAL}},
 
-        /* dialing */
-        {RSP_ZCTP,    650,650, -1,                 -1,-1, {ACT_DEBUG}},
-        {RSP_ZCPN,    650,650, -1,                 -1,-1, {ACT_DEBUG}},
-        {RSP_ZSAU,    650,650,ZSAU_CALL_DELIVERED, -1,-1, {ACT_DEBUG}}, /* some devices don't send this */
-
-        /* connection established  */
-        {RSP_ZSAU,    650,650,ZSAU_ACTIVE,        800,-1, {ACT_CONNECT}}, //FIXME -> DLE1
-        {RSP_ZSAU,    750,750,ZSAU_ACTIVE,        800,-1, {ACT_CONNECT}}, //FIXME -> DLE1
-
-        {EV_BC_OPEN,  800,800, -1,                800,-1, {ACT_NOTIFY_BC_UP}}, //FIXME new constate + timeout
+        /* optional dialing responses */
+        {EV_BC_OPEN,  650,650, -1,                651,-1},
+        {RSP_ZVLS,    608,651, 17,                 -1,-1, {ACT_DEBUG}},
+        {RSP_ZCTP,    609,651, -1,                 -1,-1, {ACT_DEBUG}},
+        {RSP_ZCPN,    609,651, -1,                 -1,-1, {ACT_DEBUG}},
+        {RSP_ZSAU,    650,651,ZSAU_CALL_DELIVERED, -1,-1, {ACT_DEBUG}},
+
+        /* connect */
+        {RSP_ZSAU,    650,650,ZSAU_ACTIVE,        800,-1, {ACT_CONNECT}},
+        {RSP_ZSAU,    651,651,ZSAU_ACTIVE,        800,-1, {ACT_CONNECT,
+                                                           ACT_NOTIFY_BC_UP}},
+        {RSP_ZSAU,    750,750,ZSAU_ACTIVE,        800,-1, {ACT_CONNECT}},
+        {RSP_ZSAU,    751,751,ZSAU_ACTIVE,        800,-1, {ACT_CONNECT,
+                                                           ACT_NOTIFY_BC_UP}},
+        {EV_BC_OPEN,  800,800, -1,                800,-1, {ACT_NOTIFY_BC_UP}},
 
         /* remote hangup */
-        {RSP_ZSAU,    650,650,ZSAU_DISCONNECT_IND,  0, 0, {ACT_REMOTEREJECT}},
-        {RSP_ZSAU,    750,750,ZSAU_DISCONNECT_IND,  0, 0, {ACT_REMOTEHUP}},
+        {RSP_ZSAU,    650,651,ZSAU_DISCONNECT_IND,  0, 0, {ACT_REMOTEREJECT}},
+        {RSP_ZSAU,    750,751,ZSAU_DISCONNECT_IND,  0, 0, {ACT_REMOTEHUP}},
         {RSP_ZSAU,    800,800,ZSAU_DISCONNECT_IND,  0, 0, {ACT_REMOTEHUP}},
 
         /* hangup */
@@ -358,7 +359,8 @@ struct reply_t gigaset_tab_cid[] =
         {RSP_ZSAU,    700,729,ZSAU_ACTIVE,          0, 0, {ACT_ABORTACCEPT}},
         {RSP_ZSAU,    700,729,ZSAU_DISCONNECT_IND,  0, 0, {ACT_ABORTACCEPT}},
 
-        {EV_TIMEOUT,  750,750, -1,                  0, 0, {ACT_CONNTIMEOUT}},
+        {EV_BC_OPEN,  750,750, -1,                751,-1},
+        {EV_TIMEOUT,  750,751, -1,                  0, 0, {ACT_CONNTIMEOUT}},
 
         /* B channel closed (general case) */
         {EV_BC_CLOSED, -1, -1, -1,                 -1,-1, {ACT_NOTIFY_BC_DOWN}}, //FIXME
@@ -876,12 +878,6 @@ static void bchannel_down(struct bc_state *bcs)
 
 static void bchannel_up(struct bc_state *bcs)
 {
-        if (!(bcs->chstate & CHS_D_UP)) {
-                dev_notice(bcs->cs->dev, "%s: D channel not up\n", __func__);
-                bcs->chstate |= CHS_D_UP;
-                gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DCONN);
-        }
-
         if (bcs->chstate & CHS_B_UP) {
                 dev_notice(bcs->cs->dev, "%s: B channel already up\n",
                            __func__);
diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
index 1ebfcab74662..8ff7e35c7069 100644
--- a/drivers/isdn/gigaset/interface.c
+++ b/drivers/isdn/gigaset/interface.c
@@ -408,6 +408,8 @@ static int if_write_room(struct tty_struct *tty)
         return retval;
 }
 
+/* FIXME: This function does not have error returns */
+
 static int if_chars_in_buffer(struct tty_struct *tty)
 {
         struct cardstate *cs;
diff --git a/drivers/isdn/gigaset/isocdata.c b/drivers/isdn/gigaset/isocdata.c
index db3a1e4cd489..bed38fcc432b 100644
--- a/drivers/isdn/gigaset/isocdata.c
+++ b/drivers/isdn/gigaset/isocdata.c
@@ -174,12 +174,6 @@ int gigaset_isowbuf_getbytes(struct isowbuf_t *iwb, int size)
                 pr_err("invalid size %d\n", size);
                 return -EINVAL;
         }
-        src = iwb->read;
-        if (unlikely(limit >= BAS_OUTBUFSIZE + BAS_OUTBUFPAD ||
-                     (read < src && limit >= src))) {
-                pr_err("isoc write buffer frame reservation violated\n");
-                return -EFAULT;
-        }
 #endif
 
         if (read < write) {
diff --git a/drivers/isdn/hisax/hfc_usb.c b/drivers/isdn/hisax/hfc_usb.c
index 8df889b0c1a9..9de54202c90c 100644
--- a/drivers/isdn/hisax/hfc_usb.c
+++ b/drivers/isdn/hisax/hfc_usb.c
@@ -37,7 +37,6 @@
 #include <linux/kernel_stat.h>
 #include <linux/usb.h>
 #include <linux/kernel.h>
-#include <linux/smp_lock.h>
 #include <linux/sched.h>
 #include <linux/moduleparam.h>
 #include "hisax.h"
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index b4d4522e5071..2881a66c1aa9 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -13,6 +13,7 @@
 
 #include <linux/isdn.h>
 #include <linux/delay.h>
+#include <linux/smp_lock.h>
 #include "isdn_common.h"
 #include "isdn_tty.h"
 #ifdef CONFIG_ISDN_AUDIO
diff --git a/drivers/isdn/mISDN/l1oip_core.c b/drivers/isdn/mISDN/l1oip_core.c
index 990e6a7e6674..7e5f30dbc0a0 100644
--- a/drivers/isdn/mISDN/l1oip_core.c
+++ b/drivers/isdn/mISDN/l1oip_core.c
@@ -731,10 +731,10 @@ l1oip_socket_thread(void *data)
         while (!signal_pending(current)) {
                 struct kvec iov = {
                         .iov_base = recvbuf,
-                        .iov_len = sizeof(recvbuf),
+                        .iov_len = recvbuf_size,
                 };
                 recvlen = kernel_recvmsg(socket, &msg, &iov, 1,
-                                         sizeof(recvbuf), 0);
+                                         recvbuf_size, 0);
                 if (recvlen > 0) {
                         l1oip_socket_parse(hc, &sin_rx, recvbuf, recvlen);
                 } else {
@@ -1480,7 +1480,7 @@ l1oip_init(void)
                 return -ENOMEM;
 
         l1oip_cnt = 0;
-        while (type[l1oip_cnt] && l1oip_cnt < MAX_CARDS) {
+        while (l1oip_cnt < MAX_CARDS && type[l1oip_cnt]) {
                 switch (type[l1oip_cnt] & 0xff) {
                 case 1:
                         pri = 0;
diff --git a/drivers/isdn/mISDN/stack.c b/drivers/isdn/mISDN/stack.c
index e2f45019ebf0..3e1532a180ff 100644
--- a/drivers/isdn/mISDN/stack.c
+++ b/drivers/isdn/mISDN/stack.c
@@ -17,6 +17,7 @@
 
 #include <linux/mISDNif.h>
 #include <linux/kthread.h>
+#include <linux/smp_lock.h>
 #include "core.h"
 
 static u_int    *debug;
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 9b60b6b684d9..7c8e7122aaa9 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -75,6 +75,7 @@ config LEDS_ALIX2
         depends on LEDS_CLASS && X86 && EXPERIMENTAL
         help
           This option enables support for the PCEngines ALIX.2 and ALIX.3 LEDs.
+          You have to set leds-alix2.force=1 for boards with Award BIOS.
 
 config LEDS_H1940
         tristate "LED Support for iPAQ H1940 device"
@@ -145,15 +146,16 @@ config LEDS_GPIO_OF
           of_platform devices.  For instance, LEDs which are listed in a "dts"
           file.
 
-config LEDS_LP5521
-        tristate "LED Support for the LP5521 LEDs"
+config LEDS_LP3944
+        tristate "LED Support for N.S. LP3944 (Fun Light) I2C chip"
         depends on LEDS_CLASS && I2C
         help
-          If you say 'Y' here you get support for the National Semiconductor
-          LP5521 LED driver used in n8x0 boards.
+    This option enables support for LEDs connected to the National
+    Semiconductor LP3944 Lighting Management Unit (LMU) also known as
+    Fun Light Chip.
 
-          This driver can be built as a module by choosing 'M'. The module
-          will be called leds-lp5521.
+          To compile this driver as a module, choose M here: the
+          module will be called leds-lp3944.
 
 config LEDS_CLEVO_MAIL
         tristate "Mail LED on Clevo notebook"
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index 2d41c4dcf92f..e8cdcf77a4c3 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -20,6 +20,7 @@ obj-$(CONFIG_LEDS_COBALT_RAQ)		+= leds-cobalt-raq.o
 obj-$(CONFIG_LEDS_SUNFIRE)              += leds-sunfire.o
 obj-$(CONFIG_LEDS_PCA9532)              += leds-pca9532.o
 obj-$(CONFIG_LEDS_GPIO)                 += leds-gpio.o
+obj-$(CONFIG_LEDS_LP3944)               += leds-lp3944.o
 obj-$(CONFIG_LEDS_CLEVO_MAIL)           += leds-clevo-mail.o
 obj-$(CONFIG_LEDS_HP6XX)                += leds-hp6xx.o
 obj-$(CONFIG_LEDS_FSG)                  += leds-fsg.o
diff --git a/drivers/leds/leds-alix2.c b/drivers/leds/leds-alix2.c
index ddbd7730dfc8..731d4eef3425 100644
--- a/drivers/leds/leds-alix2.c
+++ b/drivers/leds/leds-alix2.c
@@ -14,7 +14,7 @@
 
 static int force = 0;
 module_param(force, bool, 0444);
-MODULE_PARM_DESC(force, "Assume system has ALIX.2 style LEDs");
+MODULE_PARM_DESC(force, "Assume system has ALIX.2/ALIX.3 style LEDs");
 
 struct alix_led {
         struct led_classdev cdev;
@@ -155,6 +155,11 @@ static int __init alix_led_init(void)
                 goto out;
         }
 
+        /* enable output on GPIO for LED 1,2,3 */
+        outl(1 << 6, 0x6104);
+        outl(1 << 9, 0x6184);
+        outl(1 << 11, 0x6184);
+
         pdev = platform_device_register_simple(KBUILD_MODNAME, -1, NULL, 0);
         if (!IS_ERR(pdev)) {
                 ret = platform_driver_probe(&alix_led_driver, alix_led_probe);
diff --git a/drivers/leds/leds-bd2802.c b/drivers/leds/leds-bd2802.c
index 4149ecb3a9b2..779d7f262c04 100644
--- a/drivers/leds/leds-bd2802.c
+++ b/drivers/leds/leds-bd2802.c
@@ -97,6 +97,10 @@ struct bd2802_led {
         enum led_ids                    led_id;
         enum led_colors                 color;
         enum led_bits                   state;
+
+        /* General attributes of RGB LEDs */
+        int                             wave_pattern;
+        int                             rgb_current;
 };
 
 
@@ -254,7 +258,7 @@ static void bd2802_set_on(struct bd2802_led *led, enum led_ids id,
                 bd2802_reset_cancel(led);
 
         reg = bd2802_get_reg_addr(id, color, BD2802_REG_CURRENT1SETUP);
-        bd2802_write_byte(led->client, reg, BD2802_CURRENT_032);
+        bd2802_write_byte(led->client, reg, led->rgb_current);
         reg = bd2802_get_reg_addr(id, color, BD2802_REG_CURRENT2SETUP);
         bd2802_write_byte(led->client, reg, BD2802_CURRENT_000);
         reg = bd2802_get_reg_addr(id, color, BD2802_REG_WAVEPATTERN);
@@ -275,9 +279,9 @@ static void bd2802_set_blink(struct bd2802_led *led, enum led_ids id,
         reg = bd2802_get_reg_addr(id, color, BD2802_REG_CURRENT1SETUP);
         bd2802_write_byte(led->client, reg, BD2802_CURRENT_000);
         reg = bd2802_get_reg_addr(id, color, BD2802_REG_CURRENT2SETUP);
-        bd2802_write_byte(led->client, reg, BD2802_CURRENT_032);
+        bd2802_write_byte(led->client, reg, led->rgb_current);
         reg = bd2802_get_reg_addr(id, color, BD2802_REG_WAVEPATTERN);
-        bd2802_write_byte(led->client, reg, BD2802_PATTERN_HALF);
+        bd2802_write_byte(led->client, reg, led->wave_pattern);
 
         bd2802_enable(led, id);
         bd2802_update_state(led, id, color, BD2802_BLINK);
@@ -406,7 +410,7 @@ static void bd2802_enable_adv_conf(struct bd2802_led *led)
                 ret = device_create_file(&led->client->dev,
                                                 bd2802_addr_attributes[i]);
                 if (ret) {
-                        dev_err(&led->client->dev, "failed to sysfs file %s\n",
+                        dev_err(&led->client->dev, "failed: sysfs file %s\n",
                                         bd2802_addr_attributes[i]->attr.name);
                         goto failed_remove_files;
                 }
@@ -483,6 +487,52 @@ static struct device_attribute bd2802_adv_conf_attr = {
         .store = bd2802_store_adv_conf,
 };
 
+#define BD2802_CONTROL_ATTR(attr_name, name_str)                        \
+static ssize_t bd2802_show_##attr_name(struct device *dev,              \
+        struct device_attribute *attr, char *buf)                       \
+{                                                                       \
+        struct bd2802_led *led = i2c_get_clientdata(to_i2c_client(dev));\
+        ssize_t ret;                                                    \
+        down_read(&led->rwsem);                                         \
+        ret = sprintf(buf, "0x%02x\n", led->attr_name);                 \
+        up_read(&led->rwsem);                                           \
+        return ret;                                                     \
+}                                                                       \
+static ssize_t bd2802_store_##attr_name(struct device *dev,             \
+        struct device_attribute *attr, const char *buf, size_t count)   \
+{                                                                       \
+        struct bd2802_led *led = i2c_get_clientdata(to_i2c_client(dev));\
+        unsigned long val;                                              \
+        int ret;                                                        \
+        if (!count)                                                     \
+                return -EINVAL;                                         \
+        ret = strict_strtoul(buf, 16, &val);                            \
+        if (ret)                                                        \
+                return ret;                                             \
+        down_write(&led->rwsem);                                        \
+        led->attr_name = val;                                           \
+        up_write(&led->rwsem);                                          \
+        return count;                                                   \
+}                                                                       \
+static struct device_attribute bd2802_##attr_name##_attr = {            \
+        .attr = {                                                       \
+                .name = name_str,                                       \
+                .mode = 0644,                                           \
+                .owner = THIS_MODULE                                    \
+        },                                                              \
+        .show = bd2802_show_##attr_name,                                \
+        .store = bd2802_store_##attr_name,                              \
+};
+
+BD2802_CONTROL_ATTR(wave_pattern, "wave_pattern");
+BD2802_CONTROL_ATTR(rgb_current, "rgb_current");
+
+static struct device_attribute *bd2802_attributes[] = {
+        &bd2802_adv_conf_attr,
+        &bd2802_wave_pattern_attr,
+        &bd2802_rgb_current_attr,
+};
+
 static void bd2802_led_work(struct work_struct *work)
 {
         struct bd2802_led *led = container_of(work, struct bd2802_led, work);
@@ -538,7 +588,6 @@ static int bd2802_register_led_classdev(struct bd2802_led *led)
         led->cdev_led1r.brightness = LED_OFF;
         led->cdev_led1r.brightness_set = bd2802_set_led1r_brightness;
         led->cdev_led1r.blink_set = bd2802_set_led1r_blink;
-        led->cdev_led1r.flags |= LED_CORE_SUSPENDRESUME;
 
         ret = led_classdev_register(&led->client->dev, &led->cdev_led1r);
         if (ret < 0) {
@@ -551,7 +600,6 @@ static int bd2802_register_led_classdev(struct bd2802_led *led)
         led->cdev_led1g.brightness = LED_OFF;
         led->cdev_led1g.brightness_set = bd2802_set_led1g_brightness;
         led->cdev_led1g.blink_set = bd2802_set_led1g_blink;
-        led->cdev_led1g.flags |= LED_CORE_SUSPENDRESUME;
 
         ret = led_classdev_register(&led->client->dev, &led->cdev_led1g);
         if (ret < 0) {
@@ -564,7 +612,6 @@ static int bd2802_register_led_classdev(struct bd2802_led *led)
         led->cdev_led1b.brightness = LED_OFF;
         led->cdev_led1b.brightness_set = bd2802_set_led1b_brightness;
         led->cdev_led1b.blink_set = bd2802_set_led1b_blink;
-        led->cdev_led1b.flags |= LED_CORE_SUSPENDRESUME;
 
         ret = led_classdev_register(&led->client->dev, &led->cdev_led1b);
         if (ret < 0) {
@@ -577,7 +624,6 @@ static int bd2802_register_led_classdev(struct bd2802_led *led)
         led->cdev_led2r.brightness = LED_OFF;
         led->cdev_led2r.brightness_set = bd2802_set_led2r_brightness;
         led->cdev_led2r.blink_set = bd2802_set_led2r_blink;
-        led->cdev_led2r.flags |= LED_CORE_SUSPENDRESUME;
 
         ret = led_classdev_register(&led->client->dev, &led->cdev_led2r);
         if (ret < 0) {
@@ -590,7 +636,6 @@ static int bd2802_register_led_classdev(struct bd2802_led *led)
         led->cdev_led2g.brightness = LED_OFF;
         led->cdev_led2g.brightness_set = bd2802_set_led2g_brightness;
         led->cdev_led2g.blink_set = bd2802_set_led2g_blink;
-        led->cdev_led2g.flags |= LED_CORE_SUSPENDRESUME;
 
         ret = led_classdev_register(&led->client->dev, &led->cdev_led2g);
         if (ret < 0) {
@@ -640,7 +685,7 @@ static int __devinit bd2802_probe(struct i2c_client *client,
 {
         struct bd2802_led *led;
         struct bd2802_led_platform_data *pdata;
-        int ret;
+        int ret, i;
 
         led = kzalloc(sizeof(struct bd2802_led), GFP_KERNEL);
         if (!led) {
@@ -670,13 +715,20 @@ static int __devinit bd2802_probe(struct i2c_client *client,
         /* To save the power, reset BD2802 after detecting */
         gpio_set_value(led->pdata->reset_gpio, 0);
 
+        /* Default attributes */
+        led->wave_pattern = BD2802_PATTERN_HALF;
+        led->rgb_current = BD2802_CURRENT_032;
+
         init_rwsem(&led->rwsem);
 
-        ret = device_create_file(&client->dev, &bd2802_adv_conf_attr);
-        if (ret) {
-                dev_err(&client->dev, "failed to create sysfs file %s\n",
-                                        bd2802_adv_conf_attr.attr.name);
-                goto failed_free;
+        for (i = 0; i < ARRAY_SIZE(bd2802_attributes); i++) {
+                ret = device_create_file(&led->client->dev,
+                                                bd2802_attributes[i]);
+                if (ret) {
+                        dev_err(&led->client->dev, "failed: sysfs file %s\n",
+                                        bd2802_attributes[i]->attr.name);
+                        goto failed_unregister_dev_file;
+                }
         }
 
         ret = bd2802_register_led_classdev(led);
@@ -686,7 +738,8 @@ static int __devinit bd2802_probe(struct i2c_client *client,
         return 0;
 
 failed_unregister_dev_file:
-        device_remove_file(&client->dev, &bd2802_adv_conf_attr);
+        for (i--; i >= 0; i--)
+                device_remove_file(&led->client->dev, bd2802_attributes[i]);
 failed_free:
         i2c_set_clientdata(client, NULL);
         kfree(led);
@@ -697,12 +750,14 @@ failed_free:
 static int __exit bd2802_remove(struct i2c_client *client)
 {
         struct bd2802_led *led = i2c_get_clientdata(client);
+        int i;
 
-        bd2802_unregister_led_classdev(led);
         gpio_set_value(led->pdata->reset_gpio, 0);
+        bd2802_unregister_led_classdev(led);
         if (led->adf_on)
                 bd2802_disable_adv_conf(led);
-        device_remove_file(&client->dev, &bd2802_adv_conf_attr);
+        for (i = 0; i < ARRAY_SIZE(bd2802_attributes); i++)
+                device_remove_file(&led->client->dev, bd2802_attributes[i]);
         i2c_set_clientdata(client, NULL);
         kfree(led);
 
@@ -723,8 +778,7 @@ static int bd2802_resume(struct i2c_client *client)
         struct bd2802_led *led = i2c_get_clientdata(client);
 
         if (!bd2802_is_all_off(led) || led->adf_on) {
-                gpio_set_value(led->pdata->reset_gpio, 1);
-                udelay(100);
+                bd2802_reset_cancel(led);
                 bd2802_restore_state(led);
         }
 
@@ -762,4 +816,4 @@ module_exit(bd2802_exit);
 
 MODULE_AUTHOR("Kim Kyuwon <q1.kim@samsung.com>");
 MODULE_DESCRIPTION("BD2802 LED driver");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/leds/leds-cobalt-raq.c b/drivers/leds/leds-cobalt-raq.c
index ff0e8c3fbf9b..5f1ce810815f 100644
--- a/drivers/leds/leds-cobalt-raq.c
+++ b/drivers/leds/leds-cobalt-raq.c
@@ -1,7 +1,7 @@
 /*
  *  LEDs driver for the Cobalt Raq series.
  *
- *  Copyright (C) 2007  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ *  Copyright (C) 2007  Yoichi Yuasa <yuasa@linux-mips.org>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index d2109054de85..6b06638eb5b4 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -76,7 +76,7 @@ static int __devinit create_gpio_led(const struct gpio_led *template,
         struct gpio_led_data *led_dat, struct device *parent,
         int (*blink_set)(unsigned, unsigned long *, unsigned long *))
 {
-        int ret;
+        int ret, state;
 
         /* skip leds that aren't available */
         if (!gpio_is_valid(template->gpio)) {
@@ -99,11 +99,15 @@ static int __devinit create_gpio_led(const struct gpio_led *template,
                 led_dat->cdev.blink_set = gpio_blink_set;
         }
         led_dat->cdev.brightness_set = gpio_led_set;
-        led_dat->cdev.brightness = LED_OFF;
+        if (template->default_state == LEDS_GPIO_DEFSTATE_KEEP)
+                state = !!gpio_get_value(led_dat->gpio) ^ led_dat->active_low;
+        else
+                state = (template->default_state == LEDS_GPIO_DEFSTATE_ON);
+        led_dat->cdev.brightness = state ? LED_FULL : LED_OFF;
         if (!template->retain_state_suspended)
                 led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME;
 
-        ret = gpio_direction_output(led_dat->gpio, led_dat->active_low);
+        ret = gpio_direction_output(led_dat->gpio, led_dat->active_low ^ state);
         if (ret < 0)
                 goto err;
 
@@ -129,7 +133,7 @@ static void delete_gpio_led(struct gpio_led_data *led)
 }
 
 #ifdef CONFIG_LEDS_GPIO_PLATFORM
-static int gpio_led_probe(struct platform_device *pdev)
+static int __devinit gpio_led_probe(struct platform_device *pdev)
 {
         struct gpio_led_platform_data *pdata = pdev->dev.platform_data;
         struct gpio_led_data *leds_data;
@@ -223,12 +227,22 @@ static int __devinit of_gpio_leds_probe(struct of_device *ofdev,
         memset(&led, 0, sizeof(led));
         for_each_child_of_node(np, child) {
                 enum of_gpio_flags flags;
+                const char *state;
 
                 led.gpio = of_get_gpio_flags(child, 0, &flags);
                 led.active_low = flags & OF_GPIO_ACTIVE_LOW;
                 led.name = of_get_property(child, "label", NULL) ? : child->name;
                 led.default_trigger =
                         of_get_property(child, "linux,default-trigger", NULL);
+                state = of_get_property(child, "default-state", NULL);
+                if (state) {
+                        if (!strcmp(state, "keep"))
+                                led.default_state = LEDS_GPIO_DEFSTATE_KEEP;
+                        else if(!strcmp(state, "on"))
+                                led.default_state = LEDS_GPIO_DEFSTATE_ON;
+                        else
+                                led.default_state = LEDS_GPIO_DEFSTATE_OFF;
+                }
 
                 ret = create_gpio_led(&led, &pdata->led_data[pdata->num_leds++],
                                       &ofdev->dev, NULL);
diff --git a/drivers/leds/leds-lp3944.c b/drivers/leds/leds-lp3944.c
new file mode 100644
index 000000000000..5946208ba26e
--- /dev/null
+++ b/drivers/leds/leds-lp3944.c
@@ -0,0 +1,466 @@
+/*
+ * leds-lp3944.c - driver for National Semiconductor LP3944 Funlight Chip
+ *
+ * Copyright (C) 2009 Antonio Ospite <ospite@studenti.unina.it>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+/*
+ * I2C driver for National Semiconductor LP3944 Funlight Chip
+ * http://www.national.com/pf/LP/LP3944.html
+ *
+ * This helper chip can drive up to 8 leds, with two programmable DIM modes;
+ * it could even be used as a gpio expander but this driver assumes it is used
+ * as a led controller.
+ *
+ * The DIM modes are used to set _blink_ patterns for leds, the pattern is
+ * specified supplying two parameters:
+ *   - period: from 0s to 1.6s
+ *   - duty cycle: percentage of the period the led is on, from 0 to 100
+ *
+ * LP3944 can be found on Motorola A910 smartphone, where it drives the rgb
+ * leds, the camera flash light and the displays backlights.
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/leds.h>
+#include <linux/mutex.h>
+#include <linux/workqueue.h>
+#include <linux/leds-lp3944.h>
+
+/* Read Only Registers */
+#define LP3944_REG_INPUT1     0x00 /* LEDs 0-7 InputRegister (Read Only) */
+#define LP3944_REG_REGISTER1  0x01 /* None (Read Only) */
+
+#define LP3944_REG_PSC0       0x02 /* Frequency Prescaler 0 (R/W) */
+#define LP3944_REG_PWM0       0x03 /* PWM Register 0 (R/W) */
+#define LP3944_REG_PSC1       0x04 /* Frequency Prescaler 1 (R/W) */
+#define LP3944_REG_PWM1       0x05 /* PWM Register 1 (R/W) */
+#define LP3944_REG_LS0        0x06 /* LEDs 0-3 Selector (R/W) */
+#define LP3944_REG_LS1        0x07 /* LEDs 4-7 Selector (R/W) */
+
+/* These registers are not used to control leds in LP3944, they can store
+ * arbitrary values which the chip will ignore.
+ */
+#define LP3944_REG_REGISTER8  0x08
+#define LP3944_REG_REGISTER9  0x09
+
+#define LP3944_DIM0 0
+#define LP3944_DIM1 1
+
+/* period in ms */
+#define LP3944_PERIOD_MIN 0
+#define LP3944_PERIOD_MAX 1600
+
+/* duty cycle is a percentage */
+#define LP3944_DUTY_CYCLE_MIN 0
+#define LP3944_DUTY_CYCLE_MAX 100
+
+#define ldev_to_led(c)       container_of(c, struct lp3944_led_data, ldev)
+
+/* Saved data */
+struct lp3944_led_data {
+        u8 id;
+        enum lp3944_type type;
+        enum lp3944_status status;
+        struct led_classdev ldev;
+        struct i2c_client *client;
+        struct work_struct work;
+};
+
+struct lp3944_data {
+        struct mutex lock;
+        struct i2c_client *client;
+        struct lp3944_led_data leds[LP3944_LEDS_MAX];
+};
+
+static int lp3944_reg_read(struct i2c_client *client, u8 reg, u8 *value)
+{
+        int tmp;
+
+        tmp = i2c_smbus_read_byte_data(client, reg);
+        if (tmp < 0)
+                return -EINVAL;
+
+        *value = tmp;
+
+        return 0;
+}
+
+static int lp3944_reg_write(struct i2c_client *client, u8 reg, u8 value)
+{
+        return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+/**
+ * Set the period for DIM status
+ *
+ * @client: the i2c client
+ * @dim: either LP3944_DIM0 or LP3944_DIM1
+ * @period: period of a blink, that is a on/off cycle, expressed in ms.
+ */
+static int lp3944_dim_set_period(struct i2c_client *client, u8 dim, u16 period)
+{
+        u8 psc_reg;
+        u8 psc_value;
+        int err;
+
+        if (dim == LP3944_DIM0)
+                psc_reg = LP3944_REG_PSC0;
+        else if (dim == LP3944_DIM1)
+                psc_reg = LP3944_REG_PSC1;
+        else
+                return -EINVAL;
+
+        /* Convert period to Prescaler value */
+        if (period > LP3944_PERIOD_MAX)
+                return -EINVAL;
+
+        psc_value = (period * 255) / LP3944_PERIOD_MAX;
+
+        err = lp3944_reg_write(client, psc_reg, psc_value);
+
+        return err;
+}
+
+/**
+ * Set the duty cycle for DIM status
+ *
+ * @client: the i2c client
+ * @dim: either LP3944_DIM0 or LP3944_DIM1
+ * @duty_cycle: percentage of a period during which a led is ON
+ */
+static int lp3944_dim_set_dutycycle(struct i2c_client *client, u8 dim,
+                                    u8 duty_cycle)
+{
+        u8 pwm_reg;
+        u8 pwm_value;
+        int err;
+
+        if (dim == LP3944_DIM0)
+                pwm_reg = LP3944_REG_PWM0;
+        else if (dim == LP3944_DIM1)
+                pwm_reg = LP3944_REG_PWM1;
+        else
+                return -EINVAL;
+
+        /* Convert duty cycle to PWM value */
+        if (duty_cycle > LP3944_DUTY_CYCLE_MAX)
+                return -EINVAL;
+
+        pwm_value = (duty_cycle * 255) / LP3944_DUTY_CYCLE_MAX;
+
+        err = lp3944_reg_write(client, pwm_reg, pwm_value);
+
+        return err;
+}
+
+/**
+ * Set the led status
+ *
+ * @led: a lp3944_led_data structure
+ * @status: one of LP3944_LED_STATUS_OFF
+ *                 LP3944_LED_STATUS_ON
+ *                 LP3944_LED_STATUS_DIM0
+ *                 LP3944_LED_STATUS_DIM1
+ */
+static int lp3944_led_set(struct lp3944_led_data *led, u8 status)
+{
+        struct lp3944_data *data = i2c_get_clientdata(led->client);
+        u8 id = led->id;
+        u8 reg;
+        u8 val = 0;
+        int err;
+
+        dev_dbg(&led->client->dev, "%s: %s, status before normalization:%d\n",
+                __func__, led->ldev.name, status);
+
+        switch (id) {
+        case LP3944_LED0:
+        case LP3944_LED1:
+        case LP3944_LED2:
+        case LP3944_LED3:
+                reg = LP3944_REG_LS0;
+                break;
+        case LP3944_LED4:
+        case LP3944_LED5:
+        case LP3944_LED6:
+        case LP3944_LED7:
+                id -= LP3944_LED4;
+                reg = LP3944_REG_LS1;
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        if (status > LP3944_LED_STATUS_DIM1)
+                return -EINVAL;
+
+        /* invert only 0 and 1, leave unchanged the other values,
+         * remember we are abusing status to set blink patterns
+         */
+        if (led->type == LP3944_LED_TYPE_LED_INVERTED && status < 2)
+                status = 1 - status;
+
+        mutex_lock(&data->lock);
+        lp3944_reg_read(led->client, reg, &val);
+
+        val &= ~(LP3944_LED_STATUS_MASK << (id << 1));
+        val |= (status << (id << 1));
+
+        dev_dbg(&led->client->dev, "%s: %s, reg:%d id:%d status:%d val:%#x\n",
+                __func__, led->ldev.name, reg, id, status, val);
+
+        /* set led status */
+        err = lp3944_reg_write(led->client, reg, val);
+        mutex_unlock(&data->lock);
+
+        return err;
+}
+
+static int lp3944_led_set_blink(struct led_classdev *led_cdev,
+                                unsigned long *delay_on,
+                                unsigned long *delay_off)
+{
+        struct lp3944_led_data *led = ldev_to_led(led_cdev);
+        u16 period;
+        u8 duty_cycle;
+        int err;
+
+        /* units are in ms */
+        if (*delay_on + *delay_off > LP3944_PERIOD_MAX)
+                return -EINVAL;
+
+        if (*delay_on == 0 && *delay_off == 0) {
+                /* Special case: the leds subsystem requires a default user
+                 * friendly blink pattern for the LED.  Let's blink the led
+                 * slowly (1Hz).
+                 */
+                *delay_on = 500;
+                *delay_off = 500;
+        }
+
+        period = (*delay_on) + (*delay_off);
+
+        /* duty_cycle is the percentage of period during which the led is ON */
+        duty_cycle = 100 * (*delay_on) / period;
+
+        /* invert duty cycle for inverted leds, this has the same effect of
+         * swapping delay_on and delay_off
+         */
+        if (led->type == LP3944_LED_TYPE_LED_INVERTED)
+                duty_cycle = 100 - duty_cycle;
+
+        /* NOTE: using always the first DIM mode, this means that all leds
+         * will have the same blinking pattern.
+         *
+         * We could find a way later to have two leds blinking in hardware
+         * with different patterns at the same time, falling back to software
+         * control for the other ones.
+         */
+        err = lp3944_dim_set_period(led->client, LP3944_DIM0, period);
+        if (err)
+                return err;
+
+        err = lp3944_dim_set_dutycycle(led->client, LP3944_DIM0, duty_cycle);
+        if (err)
+                return err;
+
+        dev_dbg(&led->client->dev, "%s: OK hardware accelerated blink!\n",
+                __func__);
+
+        led->status = LP3944_LED_STATUS_DIM0;
+        schedule_work(&led->work);
+
+        return 0;
+}
+
+static void lp3944_led_set_brightness(struct led_classdev *led_cdev,
+                                      enum led_brightness brightness)
+{
+        struct lp3944_led_data *led = ldev_to_led(led_cdev);
+
+        dev_dbg(&led->client->dev, "%s: %s, %d\n",
+                __func__, led_cdev->name, brightness);
+
+        led->status = brightness;
+        schedule_work(&led->work);
+}
+
+static void lp3944_led_work(struct work_struct *work)
+{
+        struct lp3944_led_data *led;
+
+        led = container_of(work, struct lp3944_led_data, work);
+        lp3944_led_set(led, led->status);
+}
+
+static int lp3944_configure(struct i2c_client *client,
+                            struct lp3944_data *data,
+                            struct lp3944_platform_data *pdata)
+{
+        int i, err = 0;
+
+        for (i = 0; i < pdata->leds_size; i++) {
+                struct lp3944_led *pled = &pdata->leds[i];
+                struct lp3944_led_data *led = &data->leds[i];
+                led->client = client;
+                led->id = i;
+
+                switch (pled->type) {
+
+                case LP3944_LED_TYPE_LED:
+                case LP3944_LED_TYPE_LED_INVERTED:
+                        led->type = pled->type;
+                        led->status = pled->status;
+                        led->ldev.name = pled->name;
+                        led->ldev.max_brightness = 1;
+                        led->ldev.brightness_set = lp3944_led_set_brightness;
+                        led->ldev.blink_set = lp3944_led_set_blink;
+                        led->ldev.flags = LED_CORE_SUSPENDRESUME;
+
+                        INIT_WORK(&led->work, lp3944_led_work);
+                        err = led_classdev_register(&client->dev, &led->ldev);
+                        if (err < 0) {
+                                dev_err(&client->dev,
+                                        "couldn't register LED %s\n",
+                                        led->ldev.name);
+                                goto exit;
+                        }
+
+                        /* to expose the default value to userspace */
+                        led->ldev.brightness = led->status;
+
+                        /* Set the default led status */
+                        err = lp3944_led_set(led, led->status);
+                        if (err < 0) {
+                                dev_err(&client->dev,
+                                        "%s couldn't set STATUS %d\n",
+                                        led->ldev.name, led->status);
+                                goto exit;
+                        }
+                        break;
+
+                case LP3944_LED_TYPE_NONE:
+                default:
+                        break;
+
+                }
+        }
+        return 0;
+
+exit:
+        if (i > 0)
+                for (i = i - 1; i >= 0; i--)
+                        switch (pdata->leds[i].type) {
+
+                        case LP3944_LED_TYPE_LED:
+                        case LP3944_LED_TYPE_LED_INVERTED:
+                                led_classdev_unregister(&data->leds[i].ldev);
+                                cancel_work_sync(&data->leds[i].work);
+                                break;
+
+                        case LP3944_LED_TYPE_NONE:
+                        default:
+                                break;
+                        }
+
+        return err;
+}
+
+static int __devinit lp3944_probe(struct i2c_client *client,
+                                  const struct i2c_device_id *id)
+{
+        struct lp3944_platform_data *lp3944_pdata = client->dev.platform_data;
+        struct lp3944_data *data;
+
+        if (lp3944_pdata == NULL) {
+                dev_err(&client->dev, "no platform data\n");
+                return -EINVAL;
+        }
+
+        /* Let's see whether this adapter can support what we need. */
+        if (!i2c_check_functionality(client->adapter,
+                                I2C_FUNC_SMBUS_BYTE_DATA)) {
+                dev_err(&client->dev, "insufficient functionality!\n");
+                return -ENODEV;
+        }
+
+        data = kzalloc(sizeof(struct lp3944_data), GFP_KERNEL);
+        if (!data)
+                return -ENOMEM;
+
+        data->client = client;
+        i2c_set_clientdata(client, data);
+
+        mutex_init(&data->lock);
+
+        dev_info(&client->dev, "lp3944 enabled\n");
+
+        lp3944_configure(client, data, lp3944_pdata);
+        return 0;
+}
+
+static int __devexit lp3944_remove(struct i2c_client *client)
+{
+        struct lp3944_platform_data *pdata = client->dev.platform_data;
+        struct lp3944_data *data = i2c_get_clientdata(client);
+        int i;
+
+        for (i = 0; i < pdata->leds_size; i++)
+                switch (data->leds[i].type) {
+                case LP3944_LED_TYPE_LED:
+                case LP3944_LED_TYPE_LED_INVERTED:
+                        led_classdev_unregister(&data->leds[i].ldev);
+                        cancel_work_sync(&data->leds[i].work);
+                        break;
+
+                case LP3944_LED_TYPE_NONE:
+                default:
+                        break;
+                }
+
+        kfree(data);
+        i2c_set_clientdata(client, NULL);
+
+        return 0;
+}
+
+/* lp3944 i2c driver struct */
+static const struct i2c_device_id lp3944_id[] = {
+        {"lp3944", 0},
+        {}
+};
+
+MODULE_DEVICE_TABLE(i2c, lp3944_id);
+
+static struct i2c_driver lp3944_driver = {
+        .driver   = {
+                   .name = "lp3944",
+        },
+        .probe    = lp3944_probe,
+        .remove   = __devexit_p(lp3944_remove),
+        .id_table = lp3944_id,
+};
+
+static int __init lp3944_module_init(void)
+{
+        return i2c_add_driver(&lp3944_driver);
+}
+
+static void __exit lp3944_module_exit(void)
+{
+        i2c_del_driver(&lp3944_driver);
+}
+
+module_init(lp3944_module_init);
+module_exit(lp3944_module_exit);
+
+MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
+MODULE_DESCRIPTION("LP3944 Fun Light Chip");
+MODULE_LICENSE("GPL");
diff --git a/drivers/leds/leds-pca9532.c b/drivers/leds/leds-pca9532.c
index 3937244fdcab..dba8921240f2 100644
--- a/drivers/leds/leds-pca9532.c
+++ b/drivers/leds/leds-pca9532.c
@@ -35,7 +35,7 @@ struct pca9532_data {
         struct pca9532_led leds[16];
         struct mutex update_lock;
         struct input_dev    *idev;
-       struct work_struct work;
+        struct work_struct work;
         u8 pwm[2];
         u8 psc[2];
 };
@@ -87,14 +87,14 @@ static int pca9532_calcpwm(struct i2c_client *client, int pwm, int blink,
         if (b > 0xFF)
                 return -EINVAL;
         data->pwm[pwm] = b;
-       data->psc[pwm] = blink;
-       return 0;
+        data->psc[pwm] = blink;
+        return 0;
 }
 
 static int pca9532_setpwm(struct i2c_client *client, int pwm)
 {
-       struct pca9532_data *data = i2c_get_clientdata(client);
-       mutex_lock(&data->update_lock);
+        struct pca9532_data *data = i2c_get_clientdata(client);
+        mutex_lock(&data->update_lock);
         i2c_smbus_write_byte_data(client, PCA9532_REG_PWM(pwm),
                 data->pwm[pwm]);
         i2c_smbus_write_byte_data(client, PCA9532_REG_PSC(pwm),
@@ -132,11 +132,11 @@ static void pca9532_set_brightness(struct led_classdev *led_cdev,
                 led->state = PCA9532_ON;
         else {
                 led->state = PCA9532_PWM0; /* Thecus: hardcode one pwm */
-               err = pca9532_calcpwm(led->client, 0, 0, value);
+                err = pca9532_calcpwm(led->client, 0, 0, value);
                 if (err)
                         return; /* XXX: led api doesn't allow error code? */
         }
-       schedule_work(&led->work);
+        schedule_work(&led->work);
 }
 
 static int pca9532_set_blink(struct led_classdev *led_cdev,
@@ -145,7 +145,7 @@ static int pca9532_set_blink(struct led_classdev *led_cdev,
         struct pca9532_led *led = ldev_to_led(led_cdev);
         struct i2c_client *client = led->client;
         int psc;
-       int err = 0;
+        int err = 0;
 
         if (*delay_on == 0 && *delay_off == 0) {
         /* led subsystem ask us for a blink rate */
@@ -157,11 +157,11 @@ static int pca9532_set_blink(struct led_classdev *led_cdev,
 
         /* Thecus specific: only use PSC/PWM 0 */
         psc = (*delay_on * 152-1)/1000;
-       err = pca9532_calcpwm(client, 0, psc, led_cdev->brightness);
-       if (err)
-               return err;
-       schedule_work(&led->work);
-       return 0;
+        err = pca9532_calcpwm(client, 0, psc, led_cdev->brightness);
+        if (err)
+                return err;
+        schedule_work(&led->work);
+        return 0;
 }
 
 static int pca9532_event(struct input_dev *dev, unsigned int type,
@@ -178,15 +178,15 @@ static int pca9532_event(struct input_dev *dev, unsigned int type,
         else
                 data->pwm[1] = 0;
 
-       schedule_work(&data->work);
+        schedule_work(&data->work);
 
-       return 0;
+        return 0;
 }
 
 static void pca9532_input_work(struct work_struct *work)
 {
-       struct pca9532_data *data;
-       data = container_of(work, struct pca9532_data, work);
+        struct pca9532_data *data;
+        data = container_of(work, struct pca9532_data, work);
         mutex_lock(&data->update_lock);
         i2c_smbus_write_byte_data(data->client, PCA9532_REG_PWM(1),
                 data->pwm[1]);
@@ -195,11 +195,11 @@ static void pca9532_input_work(struct work_struct *work)
 
 static void pca9532_led_work(struct work_struct *work)
 {
-       struct pca9532_led *led;
-       led = container_of(work, struct pca9532_led, work);
-       if (led->state == PCA9532_PWM0)
-               pca9532_setpwm(led->client, 0);
-       pca9532_setled(led);
+        struct pca9532_led *led;
+        led = container_of(work, struct pca9532_led, work);
+        if (led->state == PCA9532_PWM0)
+                pca9532_setpwm(led->client, 0);
+        pca9532_setled(led);
 }
 
 static int pca9532_configure(struct i2c_client *client,
@@ -232,7 +232,7 @@ static int pca9532_configure(struct i2c_client *client,
                         led->ldev.brightness = LED_OFF;
                         led->ldev.brightness_set = pca9532_set_brightness;
                         led->ldev.blink_set = pca9532_set_blink;
-                       INIT_WORK(&led->work, pca9532_led_work);
+                        INIT_WORK(&led->work, pca9532_led_work);
                         err = led_classdev_register(&client->dev, &led->ldev);
                         if (err < 0) {
                                 dev_err(&client->dev,
@@ -262,11 +262,11 @@ static int pca9532_configure(struct i2c_client *client,
                                                 BIT_MASK(SND_TONE);
                         data->idev->event = pca9532_event;
                         input_set_drvdata(data->idev, data);
-                       INIT_WORK(&data->work, pca9532_input_work);
+                        INIT_WORK(&data->work, pca9532_input_work);
                         err = input_register_device(data->idev);
                         if (err) {
                                 input_free_device(data->idev);
-                               cancel_work_sync(&data->work);
+                                cancel_work_sync(&data->work);
                                 data->idev = NULL;
                                 goto exit;
                         }
@@ -283,13 +283,13 @@ exit:
                                 break;
                         case PCA9532_TYPE_LED:
                                 led_classdev_unregister(&data->leds[i].ldev);
-                               cancel_work_sync(&data->leds[i].work);
+                                cancel_work_sync(&data->leds[i].work);
                                 break;
                         case PCA9532_TYPE_N2100_BEEP:
                                 if (data->idev != NULL) {
                                         input_unregister_device(data->idev);
                                         input_free_device(data->idev);
-                                       cancel_work_sync(&data->work);
+                                        cancel_work_sync(&data->work);
                                         data->idev = NULL;
                                 }
                                 break;
@@ -340,13 +340,13 @@ static int pca9532_remove(struct i2c_client *client)
                         break;
                 case PCA9532_TYPE_LED:
                         led_classdev_unregister(&data->leds[i].ldev);
-                       cancel_work_sync(&data->leds[i].work);
+                        cancel_work_sync(&data->leds[i].work);
                         break;
                 case PCA9532_TYPE_N2100_BEEP:
                         if (data->idev != NULL) {
                                 input_unregister_device(data->idev);
                                 input_free_device(data->idev);
-                               cancel_work_sync(&data->work);
+                                cancel_work_sync(&data->work);
                                 data->idev = NULL;
                         }
                         break;
diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c
index a6974e9b8ebf..1e2cb846b3c9 100644
--- a/drivers/lguest/core.c
+++ b/drivers/lguest/core.c
@@ -1,6 +1,8 @@
-/*P:400 This contains run_guest() which actually calls into the Host<->Guest
+/*P:400
+ * This contains run_guest() which actually calls into the Host<->Guest
  * Switcher and analyzes the return, such as determining if the Guest wants the
- * Host to do something.  This file also contains useful helper routines. :*/
+ * Host to do something.  This file also contains useful helper routines.
+:*/
 #include <linux/module.h>
 #include <linux/stringify.h>
 #include <linux/stddef.h>
@@ -24,7 +26,8 @@ static struct page **switcher_page;
 /* This One Big lock protects all inter-guest data structures. */
 DEFINE_MUTEX(lguest_lock);
 
-/*H:010 We need to set up the Switcher at a high virtual address.  Remember the
+/*H:010
+ * We need to set up the Switcher at a high virtual address.  Remember the
  * Switcher is a few hundred bytes of assembler code which actually changes the
  * CPU to run the Guest, and then changes back to the Host when a trap or
  * interrupt happens.
@@ -33,7 +36,8 @@ DEFINE_MUTEX(lguest_lock);
  * Host since it will be running as the switchover occurs.
  *
  * Trying to map memory at a particular address is an unusual thing to do, so
- * it's not a simple one-liner. */
+ * it's not a simple one-liner.
+ */
 static __init int map_switcher(void)
 {
         int i, err;
@@ -47,8 +51,10 @@ static __init int map_switcher(void)
          * easy.
          */
 
-        /* We allocate an array of struct page pointers.  map_vm_area() wants
-         * this, rather than just an array of pages. */
+        /*
+         * We allocate an array of struct page pointers.  map_vm_area() wants
+         * this, rather than just an array of pages.
+         */
         switcher_page = kmalloc(sizeof(switcher_page[0])*TOTAL_SWITCHER_PAGES,
                                 GFP_KERNEL);
         if (!switcher_page) {
@@ -56,8 +62,10 @@ static __init int map_switcher(void)
                 goto out;
         }
 
-        /* Now we actually allocate the pages.  The Guest will see these pages,
-         * so we make sure they're zeroed. */
+        /*
+         * Now we actually allocate the pages.  The Guest will see these pages,
+         * so we make sure they're zeroed.
+         */
         for (i = 0; i < TOTAL_SWITCHER_PAGES; i++) {
                 unsigned long addr = get_zeroed_page(GFP_KERNEL);
                 if (!addr) {
@@ -67,19 +75,23 @@ static __init int map_switcher(void)
                 switcher_page[i] = virt_to_page(addr);
         }
 
-        /* First we check that the Switcher won't overlap the fixmap area at
+        /*
+         * First we check that the Switcher won't overlap the fixmap area at
          * the top of memory.  It's currently nowhere near, but it could have
-         * very strange effects if it ever happened. */
+         * very strange effects if it ever happened.
+         */
         if (SWITCHER_ADDR + (TOTAL_SWITCHER_PAGES+1)*PAGE_SIZE > FIXADDR_START){
                 err = -ENOMEM;
                 printk("lguest: mapping switcher would thwack fixmap\n");
                 goto free_pages;
         }
 
-        /* Now we reserve the "virtual memory area" we want: 0xFFC00000
+        /*
+         * Now we reserve the "virtual memory area" we want: 0xFFC00000
          * (SWITCHER_ADDR).  We might not get it in theory, but in practice
          * it's worked so far.  The end address needs +1 because __get_vm_area
-         * allocates an extra guard page, so we need space for that. */
+         * allocates an extra guard page, so we need space for that.
+         */
         switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE,
                                      VM_ALLOC, SWITCHER_ADDR, SWITCHER_ADDR
                                      + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE);
@@ -89,11 +101,13 @@ static __init int map_switcher(void)
                 goto free_pages;
         }
 
-        /* This code actually sets up the pages we've allocated to appear at
+        /*
+         * This code actually sets up the pages we've allocated to appear at
          * SWITCHER_ADDR.  map_vm_area() takes the vma we allocated above, the
          * kind of pages we're mapping (kernel pages), and a pointer to our
          * array of struct pages.  It increments that pointer, but we don't
-         * care. */
+         * care.
+         */
         pagep = switcher_page;
         err = map_vm_area(switcher_vma, PAGE_KERNEL_EXEC, &pagep);
         if (err) {
@@ -101,8 +115,10 @@ static __init int map_switcher(void)
                 goto free_vma;
         }
 
-        /* Now the Switcher is mapped at the right address, we can't fail!
-         * Copy in the compiled-in Switcher code (from <arch>_switcher.S). */
+        /*
+         * Now the Switcher is mapped at the right address, we can't fail!
+         * Copy in the compiled-in Switcher code (from <arch>_switcher.S).
+         */
         memcpy(switcher_vma->addr, start_switcher_text,
                end_switcher_text - start_switcher_text);
 
@@ -124,8 +140,7 @@ out:
 }
 /*:*/
 
-/* Cleaning up the mapping when the module is unloaded is almost...
- * too easy. */
+/* Cleaning up the mapping when the module is unloaded is almost... too easy. */
 static void unmap_switcher(void)
 {
         unsigned int i;
@@ -151,16 +166,19 @@ static void unmap_switcher(void)
  * But we can't trust the Guest: it might be trying to access the Launcher
  * code.  We have to check that the range is below the pfn_limit the Launcher
  * gave us.  We have to make sure that addr + len doesn't give us a false
- * positive by overflowing, too. */
+ * positive by overflowing, too.
+ */
 bool lguest_address_ok(const struct lguest *lg,
                        unsigned long addr, unsigned long len)
 {
         return (addr+len) / PAGE_SIZE < lg->pfn_limit && (addr+len >= addr);
 }
 
-/* This routine copies memory from the Guest.  Here we can see how useful the
+/*
+ * This routine copies memory from the Guest.  Here we can see how useful the
  * kill_lguest() routine we met in the Launcher can be: we return a random
- * value (all zeroes) instead of needing to return an error. */
+ * value (all zeroes) instead of needing to return an error.
+ */
 void __lgread(struct lg_cpu *cpu, void *b, unsigned long addr, unsigned bytes)
 {
         if (!lguest_address_ok(cpu->lg, addr, bytes)
@@ -181,9 +199,11 @@ void __lgwrite(struct lg_cpu *cpu, unsigned long addr, const void *b,
 }
 /*:*/
 
-/*H:030 Let's jump straight to the the main loop which runs the Guest.
+/*H:030
+ * Let's jump straight to the the main loop which runs the Guest.
  * Remember, this is called by the Launcher reading /dev/lguest, and we keep
- * going around and around until something interesting happens. */
+ * going around and around until something interesting happens.
+ */
 int run_guest(struct lg_cpu *cpu, unsigned long __user *user)
 {
         /* We stop running once the Guest is dead. */
@@ -195,10 +215,17 @@ int run_guest(struct lg_cpu *cpu, unsigned long __user *user)
                 if (cpu->hcall)
                         do_hypercalls(cpu);
 
-                /* It's possible the Guest did a NOTIFY hypercall to the
-                 * Launcher, in which case we return from the read() now. */
+                /*
+                 * It's possible the Guest did a NOTIFY hypercall to the
+                 * Launcher.
+                 */
                 if (cpu->pending_notify) {
+                        /*
+                         * Does it just needs to write to a registered
+                         * eventfd (ie. the appropriate virtqueue thread)?
+                         */
                         if (!send_notify_to_eventfd(cpu)) {
+                                /* OK, we tell the main Laucher. */
                                 if (put_user(cpu->pending_notify, user))
                                         return -EFAULT;
                                 return sizeof(cpu->pending_notify);
@@ -209,29 +236,39 @@ int run_guest(struct lg_cpu *cpu, unsigned long __user *user)
                 if (signal_pending(current))
                         return -ERESTARTSYS;
 
-                /* Check if there are any interrupts which can be delivered now:
+                /*
+                 * Check if there are any interrupts which can be delivered now:
                  * if so, this sets up the hander to be executed when we next
-                 * run the Guest. */
+                 * run the Guest.
+                 */
                 irq = interrupt_pending(cpu, &more);
                 if (irq < LGUEST_IRQS)
                         try_deliver_interrupt(cpu, irq, more);
 
-                /* All long-lived kernel loops need to check with this horrible
+                /*
+                 * All long-lived kernel loops need to check with this horrible
                  * thing called the freezer.  If the Host is trying to suspend,
-                 * it stops us. */
+                 * it stops us.
+                 */
                 try_to_freeze();
 
-                /* Just make absolutely sure the Guest is still alive.  One of
-                 * those hypercalls could have been fatal, for example. */
+                /*
+                 * Just make absolutely sure the Guest is still alive.  One of
+                 * those hypercalls could have been fatal, for example.
+                 */
                 if (cpu->lg->dead)
                         break;
 
-                /* If the Guest asked to be stopped, we sleep.  The Guest's
-                 * clock timer will wake us. */
+                /*
+                 * If the Guest asked to be stopped, we sleep.  The Guest's
+                 * clock timer will wake us.
+                 */
                 if (cpu->halted) {
                         set_current_state(TASK_INTERRUPTIBLE);
-                        /* Just before we sleep, make sure no interrupt snuck in
-                         * which we should be doing. */
+                        /*
+                         * Just before we sleep, make sure no interrupt snuck in
+                         * which we should be doing.
+                         */
                         if (interrupt_pending(cpu, &more) < LGUEST_IRQS)
                                 set_current_state(TASK_RUNNING);
                         else
@@ -239,8 +276,10 @@ int run_guest(struct lg_cpu *cpu, unsigned long __user *user)
                         continue;
                 }
 
-                /* OK, now we're ready to jump into the Guest.  First we put up
-                 * the "Do Not Disturb" sign: */
+                /*
+                 * OK, now we're ready to jump into the Guest.  First we put up
+                 * the "Do Not Disturb" sign:
+                 */
                 local_irq_disable();
 
                 /* Actually run the Guest until something happens. */
@@ -327,8 +366,10 @@ static void __exit fini(void)
 }
 /*:*/
 
-/* The Host side of lguest can be a module.  This is a nice way for people to
- * play with it.  */
+/*
+ * The Host side of lguest can be a module.  This is a nice way for people to
+ * play with it.
+ */
 module_init(init);
 module_exit(fini);
 MODULE_LICENSE("GPL");
diff --git a/drivers/lguest/hypercalls.c b/drivers/lguest/hypercalls.c
index c29ffa19cb74..83511eb0923d 100644
--- a/drivers/lguest/hypercalls.c
+++ b/drivers/lguest/hypercalls.c
@@ -1,8 +1,10 @@
-/*P:500 Just as userspace programs request kernel operations through a system
+/*P:500
+ * Just as userspace programs request kernel operations through a system
  * call, the Guest requests Host operations through a "hypercall".  You might
  * notice this nomenclature doesn't really follow any logic, but the name has
  * been around for long enough that we're stuck with it.  As you'd expect, this
- * code is basically a one big switch statement. :*/
+ * code is basically a one big switch statement.
+:*/
 
 /*  Copyright (C) 2006 Rusty Russell IBM Corporation
 
@@ -28,30 +30,41 @@
 #include <asm/pgtable.h>
 #include "lg.h"
 
-/*H:120 This is the core hypercall routine: where the Guest gets what it wants.
- * Or gets killed.  Or, in the case of LHCALL_SHUTDOWN, both. */
+/*H:120
+ * This is the core hypercall routine: where the Guest gets what it wants.
+ * Or gets killed.  Or, in the case of LHCALL_SHUTDOWN, both.
+ */
 static void do_hcall(struct lg_cpu *cpu, struct hcall_args *args)
 {
         switch (args->arg0) {
         case LHCALL_FLUSH_ASYNC:
-                /* This call does nothing, except by breaking out of the Guest
-                 * it makes us process all the asynchronous hypercalls. */
+                /*
+                 * This call does nothing, except by breaking out of the Guest
+                 * it makes us process all the asynchronous hypercalls.
+                 */
                 break;
         case LHCALL_SEND_INTERRUPTS:
-                /* This call does nothing too, but by breaking out of the Guest
-                 * it makes us process any pending interrupts. */
+                /*
+                 * This call does nothing too, but by breaking out of the Guest
+                 * it makes us process any pending interrupts.
+                 */
                 break;
         case LHCALL_LGUEST_INIT:
-                /* You can't get here unless you're already initialized.  Don't
-                 * do that. */
+                /*
+                 * You can't get here unless you're already initialized.  Don't
+                 * do that.
+                 */
                 kill_guest(cpu, "already have lguest_data");
                 break;
         case LHCALL_SHUTDOWN: {
-                /* Shutdown is such a trivial hypercall that we do it in four
-                 * lines right here. */
                 char msg[128];
-                /* If the lgread fails, it will call kill_guest() itself; the
-                 * kill_guest() with the message will be ignored. */
+                /*
+                 * Shutdown is such a trivial hypercall that we do it in five
+                 * lines right here.
+                 *
+                 * If the lgread fails, it will call kill_guest() itself; the
+                 * kill_guest() with the message will be ignored.
+                 */
                 __lgread(cpu, msg, args->arg1, sizeof(msg));
                 msg[sizeof(msg)-1] = '\0';
                 kill_guest(cpu, "CRASH: %s", msg);
@@ -60,16 +73,17 @@ static void do_hcall(struct lg_cpu *cpu, struct hcall_args *args)
                 break;
         }
         case LHCALL_FLUSH_TLB:
-                /* FLUSH_TLB comes in two flavors, depending on the
-                 * argument: */
+                /* FLUSH_TLB comes in two flavors, depending on the argument: */
                 if (args->arg1)
                         guest_pagetable_clear_all(cpu);
                 else
                         guest_pagetable_flush_user(cpu);
                 break;
 
-        /* All these calls simply pass the arguments through to the right
-         * routines. */
+        /*
+         * All these calls simply pass the arguments through to the right
+         * routines.
+         */
         case LHCALL_NEW_PGTABLE:
                 guest_new_pagetable(cpu, args->arg1);
                 break;
@@ -112,15 +126,16 @@ static void do_hcall(struct lg_cpu *cpu, struct hcall_args *args)
                         kill_guest(cpu, "Bad hypercall %li\n", args->arg0);
         }
 }
-/*:*/
 
-/*H:124 Asynchronous hypercalls are easy: we just look in the array in the
+/*H:124
+ * Asynchronous hypercalls are easy: we just look in the array in the
  * Guest's "struct lguest_data" to see if any new ones are marked "ready".
  *
  * We are careful to do these in order: obviously we respect the order the
  * Guest put them in the ring, but we also promise the Guest that they will
  * happen before any normal hypercall (which is why we check this before
- * checking for a normal hcall). */
+ * checking for a normal hcall).
+ */
 static void do_async_hcalls(struct lg_cpu *cpu)
 {
         unsigned int i;
@@ -133,22 +148,28 @@ static void do_async_hcalls(struct lg_cpu *cpu)
         /* We process "struct lguest_data"s hcalls[] ring once. */
         for (i = 0; i < ARRAY_SIZE(st); i++) {
                 struct hcall_args args;
-                /* We remember where we were up to from last time.  This makes
+                /*
+                 * We remember where we were up to from last time.  This makes
                  * sure that the hypercalls are done in the order the Guest
-                 * places them in the ring. */
+                 * places them in the ring.
+                 */
                 unsigned int n = cpu->next_hcall;
 
                 /* 0xFF means there's no call here (yet). */
                 if (st[n] == 0xFF)
                         break;
 
-                /* OK, we have hypercall.  Increment the "next_hcall" cursor,
-                 * and wrap back to 0 if we reach the end. */
+                /*
+                 * OK, we have hypercall.  Increment the "next_hcall" cursor,
+                 * and wrap back to 0 if we reach the end.
+                 */
                 if (++cpu->next_hcall == LHCALL_RING_SIZE)
                         cpu->next_hcall = 0;
 
-                /* Copy the hypercall arguments into a local copy of
-                 * the hcall_args struct. */
+                /*
+                 * Copy the hypercall arguments into a local copy of the
+                 * hcall_args struct.
+                 */
                 if (copy_from_user(&args, &cpu->lg->lguest_data->hcalls[n],
                                    sizeof(struct hcall_args))) {
                         kill_guest(cpu, "Fetching async hypercalls");
@@ -164,19 +185,25 @@ static void do_async_hcalls(struct lg_cpu *cpu)
                         break;
                 }
 
-                /* Stop doing hypercalls if they want to notify the Launcher:
-                 * it needs to service this first. */
+                /*
+                 * Stop doing hypercalls if they want to notify the Launcher:
+                 * it needs to service this first.
+                 */
                 if (cpu->pending_notify)
                         break;
         }
 }
 
-/* Last of all, we look at what happens first of all.  The very first time the
- * Guest makes a hypercall, we end up here to set things up: */
+/*
+ * Last of all, we look at what happens first of all.  The very first time the
+ * Guest makes a hypercall, we end up here to set things up:
+ */
 static void initialize(struct lg_cpu *cpu)
 {
-        /* You can't do anything until you're initialized.  The Guest knows the
-         * rules, so we're unforgiving here. */
+        /*
+         * You can't do anything until you're initialized.  The Guest knows the
+         * rules, so we're unforgiving here.
+         */
         if (cpu->hcall->arg0 != LHCALL_LGUEST_INIT) {
                 kill_guest(cpu, "hypercall %li before INIT", cpu->hcall->arg0);
                 return;
@@ -185,32 +212,44 @@ static void initialize(struct lg_cpu *cpu)
         if (lguest_arch_init_hypercalls(cpu))
                 kill_guest(cpu, "bad guest page %p", cpu->lg->lguest_data);
 
-        /* The Guest tells us where we're not to deliver interrupts by putting
-         * the range of addresses into "struct lguest_data". */
+        /*
+         * The Guest tells us where we're not to deliver interrupts by putting
+         * the range of addresses into "struct lguest_data".
+         */
         if (get_user(cpu->lg->noirq_start, &cpu->lg->lguest_data->noirq_start)
             || get_user(cpu->lg->noirq_end, &cpu->lg->lguest_data->noirq_end))
                 kill_guest(cpu, "bad guest page %p", cpu->lg->lguest_data);
 
-        /* We write the current time into the Guest's data page once so it can
-         * set its clock. */
+        /*
+         * We write the current time into the Guest's data page once so it can
+         * set its clock.
+         */
         write_timestamp(cpu);
 
         /* page_tables.c will also do some setup. */
         page_table_guest_data_init(cpu);
 
-        /* This is the one case where the above accesses might have been the
+        /*
+         * This is the one case where the above accesses might have been the
          * first write to a Guest page.  This may have caused a copy-on-write
          * fault, but the old page might be (read-only) in the Guest
-         * pagetable. */
+         * pagetable.
+         */
         guest_pagetable_clear_all(cpu);
 }
 /*:*/
 
-/*M:013 If a Guest reads from a page (so creates a mapping) that it has never
+/*M:013
+ * If a Guest reads from a page (so creates a mapping) that it has never
  * written to, and then the Launcher writes to it (ie. the output of a virtual
  * device), the Guest will still see the old page.  In practice, this never
  * happens: why would the Guest read a page which it has never written to?  But
- * a similar scenario might one day bite us, so it's worth mentioning. :*/
+ * a similar scenario might one day bite us, so it's worth mentioning.
+ *
+ * Note that if we used a shared anonymous mapping in the Launcher instead of
+ * mapping /dev/zero private, we wouldn't worry about cop-on-write.  And we
+ * need that to switch the Launcher to processes (away from threads) anyway.
+:*/
 
 /*H:100
  * Hypercalls
@@ -229,17 +268,22 @@ void do_hypercalls(struct lg_cpu *cpu)
                 return;
         }
 
-        /* The Guest has initialized.
+        /*
+         * The Guest has initialized.
          *
-         * Look in the hypercall ring for the async hypercalls: */
+         * Look in the hypercall ring for the async hypercalls:
+         */
         do_async_hcalls(cpu);
 
-        /* If we stopped reading the hypercall ring because the Guest did a
+        /*
+         * If we stopped reading the hypercall ring because the Guest did a
          * NOTIFY to the Launcher, we want to return now.  Otherwise we do
-         * the hypercall. */
+         * the hypercall.
+         */
         if (!cpu->pending_notify) {
                 do_hcall(cpu, cpu->hcall);
-                /* Tricky point: we reset the hcall pointer to mark the
+                /*
+                 * Tricky point: we reset the hcall pointer to mark the
                  * hypercall as "done".  We use the hcall pointer rather than
                  * the trap number to indicate a hypercall is pending.
                  * Normally it doesn't matter: the Guest will run again and
@@ -248,13 +292,16 @@ void do_hypercalls(struct lg_cpu *cpu)
                  * However, if we are signalled or the Guest sends I/O to the
                  * Launcher, the run_guest() loop will exit without running the
                  * Guest.  When it comes back it would try to re-run the
-                 * hypercall.  Finding that bug sucked. */
+                 * hypercall.  Finding that bug sucked.
+                 */
                 cpu->hcall = NULL;
         }
 }
 
-/* This routine supplies the Guest with time: it's used for wallclock time at
- * initial boot and as a rough time source if the TSC isn't available. */
+/*
+ * This routine supplies the Guest with time: it's used for wallclock time at
+ * initial boot and as a rough time source if the TSC isn't available.
+ */
 void write_timestamp(struct lg_cpu *cpu)
 {
         struct timespec now;
diff --git a/drivers/lguest/interrupts_and_traps.c b/drivers/lguest/interrupts_and_traps.c
index 0e9067b0d507..18648180db02 100644
--- a/drivers/lguest/interrupts_and_traps.c
+++ b/drivers/lguest/interrupts_and_traps.c
@@ -1,4 +1,5 @@
-/*P:800 Interrupts (traps) are complicated enough to earn their own file.
+/*P:800
+ * Interrupts (traps) are complicated enough to earn their own file.
  * There are three classes of interrupts:
  *
  * 1) Real hardware interrupts which occur while we're running the Guest,
@@ -10,7 +11,8 @@
  * just like real hardware would deliver them.  Traps from the Guest can be set
  * up to go directly back into the Guest, but sometimes the Host wants to see
  * them first, so we also have a way of "reflecting" them into the Guest as if
- * they had been delivered to it directly. :*/
+ * they had been delivered to it directly.
+:*/
 #include <linux/uaccess.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
@@ -26,8 +28,10 @@ static unsigned long idt_address(u32 lo, u32 hi)
         return (lo & 0x0000FFFF) | (hi & 0xFFFF0000);
 }
 
-/* The "type" of the interrupt handler is a 4 bit field: we only support a
- * couple of types. */
+/*
+ * The "type" of the interrupt handler is a 4 bit field: we only support a
+ * couple of types.
+ */
 static int idt_type(u32 lo, u32 hi)
 {
         return (hi >> 8) & 0xF;
@@ -39,8 +43,10 @@ static bool idt_present(u32 lo, u32 hi)
         return (hi & 0x8000);
 }
 
-/* We need a helper to "push" a value onto the Guest's stack, since that's a
- * big part of what delivering an interrupt does. */
+/*
+ * We need a helper to "push" a value onto the Guest's stack, since that's a
+ * big part of what delivering an interrupt does.
+ */
 static void push_guest_stack(struct lg_cpu *cpu, unsigned long *gstack, u32 val)
 {
         /* Stack grows upwards: move stack then write value. */
@@ -48,7 +54,8 @@ static void push_guest_stack(struct lg_cpu *cpu, unsigned long *gstack, u32 val)
         lgwrite(cpu, *gstack, u32, val);
 }
 
-/*H:210 The set_guest_interrupt() routine actually delivers the interrupt or
+/*H:210
+ * The set_guest_interrupt() routine actually delivers the interrupt or
  * trap.  The mechanics of delivering traps and interrupts to the Guest are the
  * same, except some traps have an "error code" which gets pushed onto the
  * stack as well: the caller tells us if this is one.
@@ -59,7 +66,8 @@ static void push_guest_stack(struct lg_cpu *cpu, unsigned long *gstack, u32 val)
  *
  * We set up the stack just like the CPU does for a real interrupt, so it's
  * identical for the Guest (and the standard "iret" instruction will undo
- * it). */
+ * it).
+ */
 static void set_guest_interrupt(struct lg_cpu *cpu, u32 lo, u32 hi,
                                 bool has_err)
 {
@@ -67,20 +75,26 @@ static void set_guest_interrupt(struct lg_cpu *cpu, u32 lo, u32 hi,
         u32 eflags, ss, irq_enable;
         unsigned long virtstack;
 
-        /* There are two cases for interrupts: one where the Guest is already
+        /*
+         * There are two cases for interrupts: one where the Guest is already
          * in the kernel, and a more complex one where the Guest is in
-         * userspace.  We check the privilege level to find out. */
+         * userspace.  We check the privilege level to find out.
+         */
         if ((cpu->regs->ss&0x3) != GUEST_PL) {
-                /* The Guest told us their kernel stack with the SET_STACK
-                 * hypercall: both the virtual address and the segment */
+                /*
+                 * The Guest told us their kernel stack with the SET_STACK
+                 * hypercall: both the virtual address and the segment.
+                 */
                 virtstack = cpu->esp1;
                 ss = cpu->ss1;
 
                 origstack = gstack = guest_pa(cpu, virtstack);
-                /* We push the old stack segment and pointer onto the new
+                /*
+                 * We push the old stack segment and pointer onto the new
                  * stack: when the Guest does an "iret" back from the interrupt
                  * handler the CPU will notice they're dropping privilege
-                 * levels and expect these here. */
+                 * levels and expect these here.
+                 */
                 push_guest_stack(cpu, &gstack, cpu->regs->ss);
                 push_guest_stack(cpu, &gstack, cpu->regs->esp);
         } else {
@@ -91,18 +105,22 @@ static void set_guest_interrupt(struct lg_cpu *cpu, u32 lo, u32 hi,
                 origstack = gstack = guest_pa(cpu, virtstack);
         }
 
-        /* Remember that we never let the Guest actually disable interrupts, so
+        /*
+         * Remember that we never let the Guest actually disable interrupts, so
          * the "Interrupt Flag" bit is always set.  We copy that bit from the
          * Guest's "irq_enabled" field into the eflags word: we saw the Guest
-         * copy it back in "lguest_iret". */
+         * copy it back in "lguest_iret".
+         */
         eflags = cpu->regs->eflags;
         if (get_user(irq_enable, &cpu->lg->lguest_data->irq_enabled) == 0
             && !(irq_enable & X86_EFLAGS_IF))
                 eflags &= ~X86_EFLAGS_IF;
 
-        /* An interrupt is expected to push three things on the stack: the old
+        /*
+         * An interrupt is expected to push three things on the stack: the old
          * "eflags" word, the old code segment, and the old instruction
-         * pointer. */
+         * pointer.
+         */
         push_guest_stack(cpu, &gstack, eflags);
         push_guest_stack(cpu, &gstack, cpu->regs->cs);
         push_guest_stack(cpu, &gstack, cpu->regs->eip);
@@ -111,15 +129,19 @@ static void set_guest_interrupt(struct lg_cpu *cpu, u32 lo, u32 hi,
         if (has_err)
                 push_guest_stack(cpu, &gstack, cpu->regs->errcode);
 
-        /* Now we've pushed all the old state, we change the stack, the code
-         * segment and the address to execute. */
+        /*
+         * Now we've pushed all the old state, we change the stack, the code
+         * segment and the address to execute.
+         */
         cpu->regs->ss = ss;
         cpu->regs->esp = virtstack + (gstack - origstack);
         cpu->regs->cs = (__KERNEL_CS|GUEST_PL);
         cpu->regs->eip = idt_address(lo, hi);
 
-        /* There are two kinds of interrupt handlers: 0xE is an "interrupt
-         * gate" which expects interrupts to be disabled on entry. */
+        /*
+         * There are two kinds of interrupt handlers: 0xE is an "interrupt
+         * gate" which expects interrupts to be disabled on entry.
+         */
         if (idt_type(lo, hi) == 0xE)
                 if (put_user(0, &cpu->lg->lguest_data->irq_enabled))
                         kill_guest(cpu, "Disabling interrupts");
@@ -130,7 +152,8 @@ static void set_guest_interrupt(struct lg_cpu *cpu, u32 lo, u32 hi,
  *
  * interrupt_pending() returns the first pending interrupt which isn't blocked
  * by the Guest.  It is called before every entry to the Guest, and just before
- * we go to sleep when the Guest has halted itself. */
+ * we go to sleep when the Guest has halted itself.
+ */
 unsigned int interrupt_pending(struct lg_cpu *cpu, bool *more)
 {
         unsigned int irq;
@@ -140,8 +163,10 @@ unsigned int interrupt_pending(struct lg_cpu *cpu, bool *more)
         if (!cpu->lg->lguest_data)
                 return LGUEST_IRQS;
 
-        /* Take our "irqs_pending" array and remove any interrupts the Guest
-         * wants blocked: the result ends up in "blk". */
+        /*
+         * Take our "irqs_pending" array and remove any interrupts the Guest
+         * wants blocked: the result ends up in "blk".
+         */
         if (copy_from_user(&blk, cpu->lg->lguest_data->blocked_interrupts,
                            sizeof(blk)))
                 return LGUEST_IRQS;
@@ -154,16 +179,20 @@ unsigned int interrupt_pending(struct lg_cpu *cpu, bool *more)
         return irq;
 }
 
-/* This actually diverts the Guest to running an interrupt handler, once an
- * interrupt has been identified by interrupt_pending(). */
+/*
+ * This actually diverts the Guest to running an interrupt handler, once an
+ * interrupt has been identified by interrupt_pending().
+ */
 void try_deliver_interrupt(struct lg_cpu *cpu, unsigned int irq, bool more)
 {
         struct desc_struct *idt;
 
         BUG_ON(irq >= LGUEST_IRQS);
 
-        /* They may be in the middle of an iret, where they asked us never to
-         * deliver interrupts. */
+        /*
+         * They may be in the middle of an iret, where they asked us never to
+         * deliver interrupts.
+         */
         if (cpu->regs->eip >= cpu->lg->noirq_start &&
            (cpu->regs->eip < cpu->lg->noirq_end))
                 return;
@@ -187,29 +216,37 @@ void try_deliver_interrupt(struct lg_cpu *cpu, unsigned int irq, bool more)
                 }
         }
 
-        /* Look at the IDT entry the Guest gave us for this interrupt.  The
+        /*
+         * Look at the IDT entry the Guest gave us for this interrupt.  The
          * first 32 (FIRST_EXTERNAL_VECTOR) entries are for traps, so we skip
-         * over them. */
+         * over them.
+         */
         idt = &cpu->arch.idt[FIRST_EXTERNAL_VECTOR+irq];
         /* If they don't have a handler (yet?), we just ignore it */
         if (idt_present(idt->a, idt->b)) {
                 /* OK, mark it no longer pending and deliver it. */
                 clear_bit(irq, cpu->irqs_pending);
-                /* set_guest_interrupt() takes the interrupt descriptor and a
+                /*
+                 * set_guest_interrupt() takes the interrupt descriptor and a
                  * flag to say whether this interrupt pushes an error code onto
-                 * the stack as well: virtual interrupts never do. */
+                 * the stack as well: virtual interrupts never do.
+                 */
                 set_guest_interrupt(cpu, idt->a, idt->b, false);
         }
 
-        /* Every time we deliver an interrupt, we update the timestamp in the
+        /*
+         * Every time we deliver an interrupt, we update the timestamp in the
          * Guest's lguest_data struct.  It would be better for the Guest if we
          * did this more often, but it can actually be quite slow: doing it
          * here is a compromise which means at least it gets updated every
-         * timer interrupt. */
+         * timer interrupt.
+         */
         write_timestamp(cpu);
 
-        /* If there are no other interrupts we want to deliver, clear
-         * the pending flag. */
+        /*
+         * If there are no other interrupts we want to deliver, clear
+         * the pending flag.
+         */
         if (!more)
                 put_user(0, &cpu->lg->lguest_data->irq_pending);
 }
@@ -217,24 +254,29 @@ void try_deliver_interrupt(struct lg_cpu *cpu, unsigned int irq, bool more)
 /* And this is the routine when we want to set an interrupt for the Guest. */
 void set_interrupt(struct lg_cpu *cpu, unsigned int irq)
 {
-        /* Next time the Guest runs, the core code will see if it can deliver
-         * this interrupt. */
+        /*
+         * Next time the Guest runs, the core code will see if it can deliver
+         * this interrupt.
+         */
         set_bit(irq, cpu->irqs_pending);
 
-        /* Make sure it sees it; it might be asleep (eg. halted), or
-         * running the Guest right now, in which case kick_process()
-         * will knock it out. */
+        /*
+         * Make sure it sees it; it might be asleep (eg. halted), or running
+         * the Guest right now, in which case kick_process() will knock it out.
+         */
         if (!wake_up_process(cpu->tsk))
                 kick_process(cpu->tsk);
 }
 /*:*/
 
-/* Linux uses trap 128 for system calls.  Plan9 uses 64, and Ron Minnich sent
+/*
+ * Linux uses trap 128 for system calls.  Plan9 uses 64, and Ron Minnich sent
  * me a patch, so we support that too.  It'd be a big step for lguest if half
  * the Plan 9 user base were to start using it.
  *
  * Actually now I think of it, it's possible that Ron *is* half the Plan 9
- * userbase.  Oh well. */
+ * userbase.  Oh well.
+ */
 static bool could_be_syscall(unsigned int num)
 {
         /* Normal Linux SYSCALL_VECTOR or reserved vector? */
@@ -274,9 +316,11 @@ void free_interrupts(void)
                 clear_bit(syscall_vector, used_vectors);
 }
 
-/*H:220 Now we've got the routines to deliver interrupts, delivering traps like
+/*H:220
+ * Now we've got the routines to deliver interrupts, delivering traps like
  * page fault is easy.  The only trick is that Intel decided that some traps
- * should have error codes: */
+ * should have error codes:
+ */
 static bool has_err(unsigned int trap)
 {
         return (trap == 8 || (trap >= 10 && trap <= 14) || trap == 17);
@@ -285,13 +329,17 @@ static bool has_err(unsigned int trap)
 /* deliver_trap() returns true if it could deliver the trap. */
 bool deliver_trap(struct lg_cpu *cpu, unsigned int num)
 {
-        /* Trap numbers are always 8 bit, but we set an impossible trap number
-         * for traps inside the Switcher, so check that here. */
+        /*
+         * Trap numbers are always 8 bit, but we set an impossible trap number
+         * for traps inside the Switcher, so check that here.
+         */
         if (num >= ARRAY_SIZE(cpu->arch.idt))
                 return false;
 
-        /* Early on the Guest hasn't set the IDT entries (or maybe it put a
-         * bogus one in): if we fail here, the Guest will be killed. */
+        /*
+         * Early on the Guest hasn't set the IDT entries (or maybe it put a
+         * bogus one in): if we fail here, the Guest will be killed.
+         */
         if (!idt_present(cpu->arch.idt[num].a, cpu->arch.idt[num].b))
                 return false;
         set_guest_interrupt(cpu, cpu->arch.idt[num].a,
@@ -299,7 +347,8 @@ bool deliver_trap(struct lg_cpu *cpu, unsigned int num)
         return true;
 }
 
-/*H:250 Here's the hard part: returning to the Host every time a trap happens
+/*H:250
+ * Here's the hard part: returning to the Host every time a trap happens
  * and then calling deliver_trap() and re-entering the Guest is slow.
  * Particularly because Guest userspace system calls are traps (usually trap
  * 128).
@@ -311,69 +360,87 @@ bool deliver_trap(struct lg_cpu *cpu, unsigned int num)
  * the other hypervisors would beat it up at lunchtime.
  *
  * This routine indicates if a particular trap number could be delivered
- * directly. */
+ * directly.
+ */
 static bool direct_trap(unsigned int num)
 {
-        /* Hardware interrupts don't go to the Guest at all (except system
-         * call). */
+        /*
+         * Hardware interrupts don't go to the Guest at all (except system
+         * call).
+         */
         if (num >= FIRST_EXTERNAL_VECTOR && !could_be_syscall(num))
                 return false;
 
-        /* The Host needs to see page faults (for shadow paging and to save the
+        /*
+         * The Host needs to see page faults (for shadow paging and to save the
          * fault address), general protection faults (in/out emulation) and
          * device not available (TS handling), invalid opcode fault (kvm hcall),
-         * and of course, the hypercall trap. */
+         * and of course, the hypercall trap.
+         */
         return num != 14 && num != 13 && num != 7 &&
                         num != 6 && num != LGUEST_TRAP_ENTRY;
 }
 /*:*/
 
-/*M:005 The Guest has the ability to turn its interrupt gates into trap gates,
+/*M:005
+ * The Guest has the ability to turn its interrupt gates into trap gates,
  * if it is careful.  The Host will let trap gates can go directly to the
  * Guest, but the Guest needs the interrupts atomically disabled for an
  * interrupt gate.  It can do this by pointing the trap gate at instructions
- * within noirq_start and noirq_end, where it can safely disable interrupts. */
+ * within noirq_start and noirq_end, where it can safely disable interrupts.
+ */
 
-/*M:006 The Guests do not use the sysenter (fast system call) instruction,
+/*M:006
+ * The Guests do not use the sysenter (fast system call) instruction,
  * because it's hardcoded to enter privilege level 0 and so can't go direct.
  * It's about twice as fast as the older "int 0x80" system call, so it might
  * still be worthwhile to handle it in the Switcher and lcall down to the
  * Guest.  The sysenter semantics are hairy tho: search for that keyword in
- * entry.S :*/
+ * entry.S
+:*/
 
-/*H:260 When we make traps go directly into the Guest, we need to make sure
+/*H:260
+ * When we make traps go directly into the Guest, we need to make sure
  * the kernel stack is valid (ie. mapped in the page tables).  Otherwise, the
  * CPU trying to deliver the trap will fault while trying to push the interrupt
  * words on the stack: this is called a double fault, and it forces us to kill
  * the Guest.
  *
- * Which is deeply unfair, because (literally!) it wasn't the Guests' fault. */
+ * Which is deeply unfair, because (literally!) it wasn't the Guests' fault.
+ */
 void pin_stack_pages(struct lg_cpu *cpu)
 {
         unsigned int i;
 
-        /* Depending on the CONFIG_4KSTACKS option, the Guest can have one or
-         * two pages of stack space. */
+        /*
+         * Depending on the CONFIG_4KSTACKS option, the Guest can have one or
+         * two pages of stack space.
+         */
         for (i = 0; i < cpu->lg->stack_pages; i++)
-                /* The stack grows *upwards*, so the address we're given is the
+                /*
+                 * The stack grows *upwards*, so the address we're given is the
                  * start of the page after the kernel stack.  Subtract one to
                  * get back onto the first stack page, and keep subtracting to
-                 * get to the rest of the stack pages. */
+                 * get to the rest of the stack pages.
+                 */
                 pin_page(cpu, cpu->esp1 - 1 - i * PAGE_SIZE);
 }
 
-/* Direct traps also mean that we need to know whenever the Guest wants to use
+/*
+ * Direct traps also mean that we need to know whenever the Guest wants to use
  * a different kernel stack, so we can change the IDT entries to use that
  * stack.  The IDT entries expect a virtual address, so unlike most addresses
  * the Guest gives us, the "esp" (stack pointer) value here is virtual, not
  * physical.
  *
  * In Linux each process has its own kernel stack, so this happens a lot: we
- * change stacks on each context switch. */
+ * change stacks on each context switch.
+ */
 void guest_set_stack(struct lg_cpu *cpu, u32 seg, u32 esp, unsigned int pages)
 {
-        /* You are not allowed have a stack segment with privilege level 0: bad
-         * Guest! */
+        /*
+         * You're not allowed a stack segment with privilege level 0: bad Guest!
+         */
         if ((seg & 0x3) != GUEST_PL)
                 kill_guest(cpu, "bad stack segment %i", seg);
         /* We only expect one or two stack pages. */
@@ -387,11 +454,15 @@ void guest_set_stack(struct lg_cpu *cpu, u32 seg, u32 esp, unsigned int pages)
         pin_stack_pages(cpu);
 }
 
-/* All this reference to mapping stacks leads us neatly into the other complex
- * part of the Host: page table handling. */
+/*
+ * All this reference to mapping stacks leads us neatly into the other complex
+ * part of the Host: page table handling.
+ */
 
-/*H:235 This is the routine which actually checks the Guest's IDT entry and
- * transfers it into the entry in "struct lguest": */
+/*H:235
+ * This is the routine which actually checks the Guest's IDT entry and
+ * transfers it into the entry in "struct lguest":
+ */
 static void set_trap(struct lg_cpu *cpu, struct desc_struct *trap,
                      unsigned int num, u32 lo, u32 hi)
 {
@@ -407,30 +478,38 @@ static void set_trap(struct lg_cpu *cpu, struct desc_struct *trap,
         if (type != 0xE && type != 0xF)
                 kill_guest(cpu, "bad IDT type %i", type);
 
-        /* We only copy the handler address, present bit, privilege level and
+        /*
+         * We only copy the handler address, present bit, privilege level and
          * type.  The privilege level controls where the trap can be triggered
          * manually with an "int" instruction.  This is usually GUEST_PL,
-         * except for system calls which userspace can use. */
+         * except for system calls which userspace can use.
+         */
         trap->a = ((__KERNEL_CS|GUEST_PL)<<16) | (lo&0x0000FFFF);
         trap->b = (hi&0xFFFFEF00);
 }
 
-/*H:230 While we're here, dealing with delivering traps and interrupts to the
+/*H:230
+ * While we're here, dealing with delivering traps and interrupts to the
  * Guest, we might as well complete the picture: how the Guest tells us where
  * it wants them to go.  This would be simple, except making traps fast
  * requires some tricks.
  *
  * We saw the Guest setting Interrupt Descriptor Table (IDT) entries with the
- * LHCALL_LOAD_IDT_ENTRY hypercall before: that comes here. */
+ * LHCALL_LOAD_IDT_ENTRY hypercall before: that comes here.
+ */
 void load_guest_idt_entry(struct lg_cpu *cpu, unsigned int num, u32 lo, u32 hi)
 {
-        /* Guest never handles: NMI, doublefault, spurious interrupt or
-         * hypercall.  We ignore when it tries to set them. */
+        /*
+         * Guest never handles: NMI, doublefault, spurious interrupt or
+         * hypercall.  We ignore when it tries to set them.
+         */
         if (num == 2 || num == 8 || num == 15 || num == LGUEST_TRAP_ENTRY)
                 return;
 
-        /* Mark the IDT as changed: next time the Guest runs we'll know we have
-         * to copy this again. */
+        /*
+         * Mark the IDT as changed: next time the Guest runs we'll know we have
+         * to copy this again.
+         */
         cpu->changed |= CHANGED_IDT;
 
         /* Check that the Guest doesn't try to step outside the bounds. */
@@ -440,9 +519,11 @@ void load_guest_idt_entry(struct lg_cpu *cpu, unsigned int num, u32 lo, u32 hi)
                 set_trap(cpu, &cpu->arch.idt[num], num, lo, hi);
 }
 
-/* The default entry for each interrupt points into the Switcher routines which
+/*
+ * The default entry for each interrupt points into the Switcher routines which
  * simply return to the Host.  The run_guest() loop will then call
- * deliver_trap() to bounce it back into the Guest. */
+ * deliver_trap() to bounce it back into the Guest.
+ */
 static void default_idt_entry(struct desc_struct *idt,
                               int trap,
                               const unsigned long handler,
@@ -451,13 +532,17 @@ static void default_idt_entry(struct desc_struct *idt,
         /* A present interrupt gate. */
         u32 flags = 0x8e00;
 
-        /* Set the privilege level on the entry for the hypercall: this allows
-         * the Guest to use the "int" instruction to trigger it. */
+        /*
+         * Set the privilege level on the entry for the hypercall: this allows
+         * the Guest to use the "int" instruction to trigger it.
+         */
         if (trap == LGUEST_TRAP_ENTRY)
                 flags |= (GUEST_PL << 13);
         else if (base)
-                /* Copy priv. level from what Guest asked for.  This allows
-                 * debug (int 3) traps from Guest userspace, for example. */
+                /*
+                 * Copy privilege level from what Guest asked for.  This allows
+                 * debug (int 3) traps from Guest userspace, for example.
+                 */
                 flags |= (base->b & 0x6000);
 
         /* Now pack it into the IDT entry in its weird format. */
@@ -475,16 +560,20 @@ void setup_default_idt_entries(struct lguest_ro_state *state,
                 default_idt_entry(&state->guest_idt[i], i, def[i], NULL);
 }
 
-/*H:240 We don't use the IDT entries in the "struct lguest" directly, instead
+/*H:240
+ * We don't use the IDT entries in the "struct lguest" directly, instead
  * we copy them into the IDT which we've set up for Guests on this CPU, just
- * before we run the Guest.  This routine does that copy. */
+ * before we run the Guest.  This routine does that copy.
+ */
 void copy_traps(const struct lg_cpu *cpu, struct desc_struct *idt,
                 const unsigned long *def)
 {
         unsigned int i;
 
-        /* We can simply copy the direct traps, otherwise we use the default
-         * ones in the Switcher: they will return to the Host. */
+        /*
+         * We can simply copy the direct traps, otherwise we use the default
+         * ones in the Switcher: they will return to the Host.
+         */
         for (i = 0; i < ARRAY_SIZE(cpu->arch.idt); i++) {
                 const struct desc_struct *gidt = &cpu->arch.idt[i];
 
@@ -492,14 +581,16 @@ void copy_traps(const struct lg_cpu *cpu, struct desc_struct *idt,
                 if (!direct_trap(i))
                         continue;
 
-                /* Only trap gates (type 15) can go direct to the Guest.
+                /*
+                 * Only trap gates (type 15) can go direct to the Guest.
                  * Interrupt gates (type 14) disable interrupts as they are
                  * entered, which we never let the Guest do.  Not present
                  * entries (type 0x0) also can't go direct, of course.
                  *
                  * If it can't go direct, we still need to copy the priv. level:
                  * they might want to give userspace access to a software
-                 * interrupt. */
+                 * interrupt.
+                 */
                 if (idt_type(gidt->a, gidt->b) == 0xF)
                         idt[i] = *gidt;
                 else
@@ -518,7 +609,8 @@ void copy_traps(const struct lg_cpu *cpu, struct desc_struct *idt,
  * the next timer interrupt (in nanoseconds).  We use the high-resolution timer
  * infrastructure to set a callback at that time.
  *
- * 0 means "turn off the clock". */
+ * 0 means "turn off the clock".
+ */
 void guest_set_clockevent(struct lg_cpu *cpu, unsigned long delta)
 {
         ktime_t expires;
@@ -529,9 +621,11 @@ void guest_set_clockevent(struct lg_cpu *cpu, unsigned long delta)
                 return;
         }
 
-        /* We use wallclock time here, so the Guest might not be running for
+        /*
+         * We use wallclock time here, so the Guest might not be running for
          * all the time between now and the timer interrupt it asked for.  This
-         * is almost always the right thing to do. */
+         * is almost always the right thing to do.
+         */
         expires = ktime_add_ns(ktime_get_real(), delta);
         hrtimer_start(&cpu->hrt, expires, HRTIMER_MODE_ABS);
 }
diff --git a/drivers/lguest/lg.h b/drivers/lguest/lg.h
index d4e8979735cb..bc28745d05af 100644
--- a/drivers/lguest/lg.h
+++ b/drivers/lguest/lg.h
@@ -16,15 +16,13 @@
 void free_pagetables(void);
 int init_pagetables(struct page **switcher_page, unsigned int pages);
 
-struct pgdir
-{
+struct pgdir {
         unsigned long gpgdir;
         pgd_t *pgdir;
 };
 
 /* We have two pages shared with guests, per cpu.  */
-struct lguest_pages
-{
+struct lguest_pages {
         /* This is the stack page mapped rw in guest */
         char spare[PAGE_SIZE - sizeof(struct lguest_regs)];
         struct lguest_regs regs;
@@ -38,8 +36,6 @@ struct lguest_pages
 #define CHANGED_GDT_TLS         4 /* Actually a subset of CHANGED_GDT */
 #define CHANGED_ALL             3
 
-struct lguest;
-
 struct lg_cpu {
         unsigned int id;
         struct lguest *lg;
@@ -56,13 +52,13 @@ struct lg_cpu {
 
         unsigned long pending_notify; /* pfn from LHCALL_NOTIFY */
 
-        /* At end of a page shared mapped over lguest_pages in guest.  */
+        /* At end of a page shared mapped over lguest_pages in guest. */
         unsigned long regs_page;
         struct lguest_regs *regs;
 
         struct lguest_pages *last_pages;
 
-        int cpu_pgd; /* which pgd this cpu is currently using */
+        int cpu_pgd; /* Which pgd this cpu is currently using */
 
         /* If a hypercall was asked for, this points to the arguments. */
         struct hcall_args *hcall;
@@ -82,7 +78,7 @@ struct lg_cpu {
 
 struct lg_eventfd {
         unsigned long addr;
-        struct file *event;
+        struct eventfd_ctx *event;
 };
 
 struct lg_eventfd_map {
@@ -91,15 +87,17 @@ struct lg_eventfd_map {
 };
 
 /* The private info the thread maintains about the guest. */
-struct lguest
-{
+struct lguest {
         struct lguest_data __user *lguest_data;
         struct lg_cpu cpus[NR_CPUS];
         unsigned int nr_cpus;
 
         u32 pfn_limit;
-        /* This provides the offset to the base of guest-physical
-         * memory in the Launcher. */
+
+        /*
+         * This provides the offset to the base of guest-physical memory in the
+         * Launcher.
+         */
         void __user *mem_base;
         unsigned long kernel_address;
 
@@ -124,11 +122,13 @@ bool lguest_address_ok(const struct lguest *lg,
 void __lgread(struct lg_cpu *, void *, unsigned long, unsigned);
 void __lgwrite(struct lg_cpu *, unsigned long, const void *, unsigned);
 
-/*H:035 Using memory-copy operations like that is usually inconvient, so we
+/*H:035
+ * Using memory-copy operations like that is usually inconvient, so we
  * have the following helper macros which read and write a specific type (often
  * an unsigned long).
  *
- * This reads into a variable of the given type then returns that. */
+ * This reads into a variable of the given type then returns that.
+ */
 #define lgread(cpu, addr, type)                                         \
         ({ type _v; __lgread((cpu), &_v, (addr), sizeof(_v)); _v; })
 
@@ -142,9 +142,11 @@ void __lgwrite(struct lg_cpu *, unsigned long, const void *, unsigned);
 
 int run_guest(struct lg_cpu *cpu, unsigned long __user *user);
 
-/* Helper macros to obtain the first 12 or the last 20 bits, this is only the
+/*
+ * Helper macros to obtain the first 12 or the last 20 bits, this is only the
  * first step in the migration to the kernel types.  pte_pfn is already defined
- * in the kernel. */
+ * in the kernel.
+ */
 #define pgd_flags(x)    (pgd_val(x) & ~PAGE_MASK)
 #define pgd_pfn(x)      (pgd_val(x) >> PAGE_SHIFT)
 #define pmd_flags(x)    (pmd_val(x) & ~PAGE_MASK)
diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c
index e082cdac88b4..b6200bc39b58 100644
--- a/drivers/lguest/lguest_device.c
+++ b/drivers/lguest/lguest_device.c
@@ -1,10 +1,12 @@
-/*P:050 Lguest guests use a very simple method to describe devices.  It's a
+/*P:050
+ * Lguest guests use a very simple method to describe devices.  It's a
  * series of device descriptors contained just above the top of normal Guest
  * memory.
  *
  * We use the standard "virtio" device infrastructure, which provides us with a
  * console, a network and a block driver.  Each one expects some configuration
- * information and a "virtqueue" or two to send and receive data. :*/
+ * information and a "virtqueue" or two to send and receive data.
+:*/
 #include <linux/init.h>
 #include <linux/bootmem.h>
 #include <linux/lguest_launcher.h>
@@ -20,8 +22,10 @@
 /* The pointer to our (page) of device descriptions. */
 static void *lguest_devices;
 
-/* For Guests, device memory can be used as normal memory, so we cast away the
- * __iomem to quieten sparse. */
+/*
+ * For Guests, device memory can be used as normal memory, so we cast away the
+ * __iomem to quieten sparse.
+ */
 static inline void *lguest_map(unsigned long phys_addr, unsigned long pages)
 {
         return (__force void *)ioremap_cache(phys_addr, PAGE_SIZE*pages);
@@ -32,8 +36,10 @@ static inline void lguest_unmap(void *addr)
         iounmap((__force void __iomem *)addr);
 }
 
-/*D:100 Each lguest device is just a virtio device plus a pointer to its entry
- * in the lguest_devices page. */
+/*D:100
+ * Each lguest device is just a virtio device plus a pointer to its entry
+ * in the lguest_devices page.
+ */
 struct lguest_device {
         struct virtio_device vdev;
 
@@ -41,9 +47,11 @@ struct lguest_device {
         struct lguest_device_desc *desc;
 };
 
-/* Since the virtio infrastructure hands us a pointer to the virtio_device all
+/*
+ * Since the virtio infrastructure hands us a pointer to the virtio_device all
  * the time, it helps to have a curt macro to get a pointer to the struct
- * lguest_device it's enclosed in.  */
+ * lguest_device it's enclosed in.
+ */
 #define to_lgdev(vd) container_of(vd, struct lguest_device, vdev)
 
 /*D:130
@@ -55,7 +63,8 @@ struct lguest_device {
  * the driver will look at them during setup.
  *
  * A convenient routine to return the device's virtqueue config array:
- * immediately after the descriptor. */
+ * immediately after the descriptor.
+ */
 static struct lguest_vqconfig *lg_vq(const struct lguest_device_desc *desc)
 {
         return (void *)(desc + 1);
@@ -98,10 +107,12 @@ static u32 lg_get_features(struct virtio_device *vdev)
         return features;
 }
 
-/* The virtio core takes the features the Host offers, and copies the
- * ones supported by the driver into the vdev->features array.  Once
- * that's all sorted out, this routine is called so we can tell the
- * Host which features we understand and accept. */
+/*
+ * The virtio core takes the features the Host offers, and copies the ones
+ * supported by the driver into the vdev->features array.  Once that's all
+ * sorted out, this routine is called so we can tell the Host which features we
+ * understand and accept.
+ */
 static void lg_finalize_features(struct virtio_device *vdev)
 {
         unsigned int i, bits;
@@ -112,10 +123,11 @@ static void lg_finalize_features(struct virtio_device *vdev)
         /* Give virtio_ring a chance to accept features. */
         vring_transport_features(vdev);
 
-        /* The vdev->feature array is a Linux bitmask: this isn't the
-         * same as a the simple array of bits used by lguest devices
-         * for features.  So we do this slow, manual conversion which is
-         * completely general. */
+        /*
+         * The vdev->feature array is a Linux bitmask: this isn't the same as a
+         * the simple array of bits used by lguest devices for features.  So we
+         * do this slow, manual conversion which is completely general.
+         */
         memset(out_features, 0, desc->feature_len);
         bits = min_t(unsigned, desc->feature_len, sizeof(vdev->features)) * 8;
         for (i = 0; i < bits; i++) {
@@ -146,15 +158,19 @@ static void lg_set(struct virtio_device *vdev, unsigned int offset,
         memcpy(lg_config(desc) + offset, buf, len);
 }
 
-/* The operations to get and set the status word just access the status field
- * of the device descriptor. */
+/*
+ * The operations to get and set the status word just access the status field
+ * of the device descriptor.
+ */
 static u8 lg_get_status(struct virtio_device *vdev)
 {
         return to_lgdev(vdev)->desc->status;
 }
 
-/* To notify on status updates, we (ab)use the NOTIFY hypercall, with the
- * descriptor address of the device.  A zero status means "reset". */
+/*
+ * To notify on status updates, we (ab)use the NOTIFY hypercall, with the
+ * descriptor address of the device.  A zero status means "reset".
+ */
 static void set_status(struct virtio_device *vdev, u8 status)
 {
         unsigned long offset = (void *)to_lgdev(vdev)->desc - lguest_devices;
@@ -191,8 +207,7 @@ static void lg_reset(struct virtio_device *vdev)
  */
 
 /*D:140 This is the information we remember about each virtqueue. */
-struct lguest_vq_info
-{
+struct lguest_vq_info {
         /* A copy of the information contained in the device config. */
         struct lguest_vqconfig config;
 
@@ -200,13 +215,17 @@ struct lguest_vq_info
         void *pages;
 };
 
-/* When the virtio_ring code wants to prod the Host, it calls us here and we
+/*
+ * When the virtio_ring code wants to prod the Host, it calls us here and we
  * make a hypercall.  We hand the physical address of the virtqueue so the Host
- * knows which virtqueue we're talking about. */
+ * knows which virtqueue we're talking about.
+ */
 static void lg_notify(struct virtqueue *vq)
 {
-        /* We store our virtqueue information in the "priv" pointer of the
-         * virtqueue structure. */
+        /*
+         * We store our virtqueue information in the "priv" pointer of the
+         * virtqueue structure.
+         */
         struct lguest_vq_info *lvq = vq->priv;
 
         kvm_hypercall1(LHCALL_NOTIFY, lvq->config.pfn << PAGE_SHIFT);
@@ -215,7 +234,8 @@ static void lg_notify(struct virtqueue *vq)
 /* An extern declaration inside a C file is bad form.  Don't do it. */
 extern void lguest_setup_irq(unsigned int irq);
 
-/* This routine finds the first virtqueue described in the configuration of
+/*
+ * This routine finds the Nth virtqueue described in the configuration of
  * this device and sets it up.
  *
  * This is kind of an ugly duckling.  It'd be nicer to have a standard
@@ -223,9 +243,7 @@ extern void lguest_setup_irq(unsigned int irq);
  * everyone wants to do it differently.  The KVM coders want the Guest to
  * allocate its own pages and tell the Host where they are, but for lguest it's
  * simpler for the Host to simply tell us where the pages are.
- *
- * So we provide drivers with a "find the Nth virtqueue and set it up"
- * function. */
+ */
 static struct virtqueue *lg_find_vq(struct virtio_device *vdev,
                                     unsigned index,
                                     void (*callback)(struct virtqueue *vq),
@@ -244,9 +262,11 @@ static struct virtqueue *lg_find_vq(struct virtio_device *vdev,
         if (!lvq)
                 return ERR_PTR(-ENOMEM);
 
-        /* Make a copy of the "struct lguest_vqconfig" entry, which sits after
+        /*
+         * Make a copy of the "struct lguest_vqconfig" entry, which sits after
          * the descriptor.  We need a copy because the config space might not
-         * be aligned correctly. */
+         * be aligned correctly.
+         */
         memcpy(&lvq->config, lg_vq(ldev->desc)+index, sizeof(lvq->config));
 
         printk("Mapping virtqueue %i addr %lx\n", index,
@@ -261,8 +281,10 @@ static struct virtqueue *lg_find_vq(struct virtio_device *vdev,
                 goto free_lvq;
         }
 
-        /* OK, tell virtio_ring.c to set up a virtqueue now we know its size
-         * and we've got a pointer to its pages. */
+        /*
+         * OK, tell virtio_ring.c to set up a virtqueue now we know its size
+         * and we've got a pointer to its pages.
+         */
         vq = vring_new_virtqueue(lvq->config.num, LGUEST_VRING_ALIGN,
                                  vdev, lvq->pages, lg_notify, callback, name);
         if (!vq) {
@@ -273,18 +295,23 @@ static struct virtqueue *lg_find_vq(struct virtio_device *vdev,
         /* Make sure the interrupt is allocated. */
         lguest_setup_irq(lvq->config.irq);
 
-        /* Tell the interrupt for this virtqueue to go to the virtio_ring
-         * interrupt handler. */
-        /* FIXME: We used to have a flag for the Host to tell us we could use
+        /*
+         * Tell the interrupt for this virtqueue to go to the virtio_ring
+         * interrupt handler.
+         *
+         * FIXME: We used to have a flag for the Host to tell us we could use
          * the interrupt as a source of randomness: it'd be nice to have that
-         * back.. */
+         * back.
+         */
         err = request_irq(lvq->config.irq, vring_interrupt, IRQF_SHARED,
                           dev_name(&vdev->dev), vq);
         if (err)
                 goto destroy_vring;
 
-        /* Last of all we hook up our 'struct lguest_vq_info" to the
-         * virtqueue's priv pointer. */
+        /*
+         * Last of all we hook up our 'struct lguest_vq_info" to the
+         * virtqueue's priv pointer.
+         */
         vq->priv = lvq;
         return vq;
 
@@ -358,11 +385,14 @@ static struct virtio_config_ops lguest_config_ops = {
         .del_vqs = lg_del_vqs,
 };
 
-/* The root device for the lguest virtio devices.  This makes them appear as
- * /sys/devices/lguest/0,1,2 not /sys/devices/0,1,2. */
+/*
+ * The root device for the lguest virtio devices.  This makes them appear as
+ * /sys/devices/lguest/0,1,2 not /sys/devices/0,1,2.
+ */
 static struct device *lguest_root;
 
-/*D:120 This is the core of the lguest bus: actually adding a new device.
+/*D:120
+ * This is the core of the lguest bus: actually adding a new device.
  * It's a separate function because it's neater that way, and because an
  * earlier version of the code supported hotplug and unplug.  They were removed
  * early on because they were never used.
@@ -371,14 +401,14 @@ static struct device *lguest_root;
  *
  * It's worth reading this carefully: we start with a pointer to the new device
  * descriptor in the "lguest_devices" page, and the offset into the device
- * descriptor page so we can uniquely identify it if things go badly wrong. */
+ * descriptor page so we can uniquely identify it if things go badly wrong.
+ */
 static void add_lguest_device(struct lguest_device_desc *d,
                               unsigned int offset)
 {
         struct lguest_device *ldev;
 
-        /* Start with zeroed memory; Linux's device layer seems to count on
-         * it. */
+        /* Start with zeroed memory; Linux's device layer counts on it. */
         ldev = kzalloc(sizeof(*ldev), GFP_KERNEL);
         if (!ldev) {
                 printk(KERN_EMERG "Cannot allocate lguest dev %u type %u\n",
@@ -388,17 +418,25 @@ static void add_lguest_device(struct lguest_device_desc *d,
 
         /* This devices' parent is the lguest/ dir. */
         ldev->vdev.dev.parent = lguest_root;
-        /* We have a unique device index thanks to the dev_index counter. */
+        /*
+         * The device type comes straight from the descriptor.  There's also a
+         * device vendor field in the virtio_device struct, which we leave as
+         * 0.
+         */
         ldev->vdev.id.device = d->type;
-        /* We have a simple set of routines for querying the device's
-         * configuration information and setting its status. */
+        /*
+         * We have a simple set of routines for querying the device's
+         * configuration information and setting its status.
+         */
         ldev->vdev.config = &lguest_config_ops;
         /* And we remember the device's descriptor for lguest_config_ops. */
         ldev->desc = d;
 
-        /* register_virtio_device() sets up the generic fields for the struct
+        /*
+         * register_virtio_device() sets up the generic fields for the struct
          * virtio_device and calls device_register().  This makes the bus
-         * infrastructure look for a matching driver. */
+         * infrastructure look for a matching driver.
+         */
         if (register_virtio_device(&ldev->vdev) != 0) {
                 printk(KERN_ERR "Failed to register lguest dev %u type %u\n",
                        offset, d->type);
@@ -406,8 +444,10 @@ static void add_lguest_device(struct lguest_device_desc *d,
         }
 }
 
-/*D:110 scan_devices() simply iterates through the device page.  The type 0 is
- * reserved to mean "end of devices". */
+/*D:110
+ * scan_devices() simply iterates through the device page.  The type 0 is
+ * reserved to mean "end of devices".
+ */
 static void scan_devices(void)
 {
         unsigned int i;
@@ -426,7 +466,8 @@ static void scan_devices(void)
         }
 }
 
-/*D:105 Fairly early in boot, lguest_devices_init() is called to set up the
+/*D:105
+ * Fairly early in boot, lguest_devices_init() is called to set up the
  * lguest device infrastructure.  We check that we are a Guest by checking
  * pv_info.name: there are other ways of checking, but this seems most
  * obvious to me.
@@ -437,7 +478,8 @@ static void scan_devices(void)
  * correct sysfs incantation).
  *
  * Finally we call scan_devices() which adds all the devices found in the
- * lguest_devices page. */
+ * lguest_devices page.
+ */
 static int __init lguest_devices_init(void)
 {
         if (strcmp(pv_info.name, "lguest") != 0)
@@ -456,11 +498,13 @@ static int __init lguest_devices_init(void)
 /* We do this after core stuff, but before the drivers. */
 postcore_initcall(lguest_devices_init);
 
-/*D:150 At this point in the journey we used to now wade through the lguest
+/*D:150
+ * At this point in the journey we used to now wade through the lguest
  * devices themselves: net, block and console.  Since they're all now virtio
  * devices rather than lguest-specific, I've decided to ignore them.  Mostly,
  * they're kind of boring.  But this does mean you'll never experience the
  * thrill of reading the forbidden love scene buried deep in the block driver.
  *
  * "make Launcher" beckons, where we answer questions like "Where do Guests
- * come from?", and "What do you do when someone asks for optimization?". */
+ * come from?", and "What do you do when someone asks for optimization?".
+ */
diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c
index 32e297121058..b4d3f7ca554f 100644
--- a/drivers/lguest/lguest_user.c
+++ b/drivers/lguest/lguest_user.c
@@ -1,8 +1,9 @@
 /*P:200 This contains all the /dev/lguest code, whereby the userspace launcher
  * controls and communicates with the Guest.  For example, the first write will
- * tell us the Guest's memory layout, pagetable, entry point and kernel address
- * offset.  A read will run the Guest until something happens, such as a signal
- * or the Guest doing a NOTIFY out to the Launcher. :*/
+ * tell us the Guest's memory layout and entry point.  A read will run the
+ * Guest until something happens, such as a signal or the Guest doing a NOTIFY
+ * out to the Launcher.
+:*/
 #include <linux/uaccess.h>
 #include <linux/miscdevice.h>
 #include <linux/fs.h>
@@ -11,14 +12,41 @@
 #include <linux/file.h>
 #include "lg.h"
 
+/*L:056
+ * Before we move on, let's jump ahead and look at what the kernel does when
+ * it needs to look up the eventfds.  That will complete our picture of how we
+ * use RCU.
+ *
+ * The notification value is in cpu->pending_notify: we return true if it went
+ * to an eventfd.
+ */
 bool send_notify_to_eventfd(struct lg_cpu *cpu)
 {
         unsigned int i;
         struct lg_eventfd_map *map;
 
-        /* lg->eventfds is RCU-protected */
+        /*
+         * This "rcu_read_lock()" helps track when someone is still looking at
+         * the (RCU-using) eventfds array.  It's not actually a lock at all;
+         * indeed it's a noop in many configurations.  (You didn't expect me to
+         * explain all the RCU secrets here, did you?)
+         */
         rcu_read_lock();
+        /*
+         * rcu_dereference is the counter-side of rcu_assign_pointer(); it
+         * makes sure we don't access the memory pointed to by
+         * cpu->lg->eventfds before cpu->lg->eventfds is set.  Sounds crazy,
+         * but Alpha allows this!  Paul McKenney points out that a really
+         * aggressive compiler could have the same effect:
+         *   http://lists.ozlabs.org/pipermail/lguest/2009-July/001560.html
+         *
+         * So play safe, use rcu_dereference to get the rcu-protected pointer:
+         */
         map = rcu_dereference(cpu->lg->eventfds);
+        /*
+         * Simple array search: even if they add an eventfd while we do this,
+         * we'll continue to use the old array and just won't see the new one.
+         */
         for (i = 0; i < map->num; i++) {
                 if (map->map[i].addr == cpu->pending_notify) {
                         eventfd_signal(map->map[i].event, 1);
@@ -26,19 +54,50 @@ bool send_notify_to_eventfd(struct lg_cpu *cpu)
                         break;
                 }
         }
+        /* We're done with the rcu-protected variable cpu->lg->eventfds. */
         rcu_read_unlock();
+
+        /* If we cleared the notification, it's because we found a match. */
         return cpu->pending_notify == 0;
 }
 
+/*L:055
+ * One of the more tricksy tricks in the Linux Kernel is a technique called
+ * Read Copy Update.  Since one point of lguest is to teach lguest journeyers
+ * about kernel coding, I use it here.  (In case you're curious, other purposes
+ * include learning about virtualization and instilling a deep appreciation for
+ * simplicity and puppies).
+ *
+ * We keep a simple array which maps LHCALL_NOTIFY values to eventfds, but we
+ * add new eventfds without ever blocking readers from accessing the array.
+ * The current Launcher only does this during boot, so that never happens.  But
+ * Read Copy Update is cool, and adding a lock risks damaging even more puppies
+ * than this code does.
+ *
+ * We allocate a brand new one-larger array, copy the old one and add our new
+ * element.  Then we make the lg eventfd pointer point to the new array.
+ * That's the easy part: now we need to free the old one, but we need to make
+ * sure no slow CPU somewhere is still looking at it.  That's what
+ * synchronize_rcu does for us: waits until every CPU has indicated that it has
+ * moved on to know it's no longer using the old one.
+ *
+ * If that's unclear, see http://en.wikipedia.org/wiki/Read-copy-update.
+ */
 static int add_eventfd(struct lguest *lg, unsigned long addr, int fd)
 {
         struct lg_eventfd_map *new, *old = lg->eventfds;
 
+        /*
+         * We don't allow notifications on value 0 anyway (pending_notify of
+         * 0 means "nothing pending").
+         */
         if (!addr)
                 return -EINVAL;
 
-        /* Replace the old array with the new one, carefully: others can
-         * be accessing it at the same time */
+        /*
+         * Replace the old array with the new one, carefully: others can
+         * be accessing it at the same time.
+         */
         new = kmalloc(sizeof(*new) + sizeof(new->map[0]) * (old->num + 1),
                       GFP_KERNEL);
         if (!new)
@@ -50,24 +109,43 @@ static int add_eventfd(struct lguest *lg, unsigned long addr, int fd)
 
         /* Now append new entry. */
         new->map[new->num].addr = addr;
-        new->map[new->num].event = eventfd_fget(fd);
+        new->map[new->num].event = eventfd_ctx_fdget(fd);
         if (IS_ERR(new->map[new->num].event)) {
+                int err =  PTR_ERR(new->map[new->num].event);
                 kfree(new);
-                return PTR_ERR(new->map[new->num].event);
+                return err;
         }
         new->num++;
 
-        /* Now put new one in place. */
+        /*
+         * Now put new one in place: rcu_assign_pointer() is a fancy way of
+         * doing "lg->eventfds = new", but it uses memory barriers to make
+         * absolutely sure that the contents of "new" written above is nailed
+         * down before we actually do the assignment.
+         *
+         * We have to think about these kinds of things when we're operating on
+         * live data without locks.
+         */
         rcu_assign_pointer(lg->eventfds, new);
 
-        /* We're not in a big hurry.  Wait until noone's looking at old
-         * version, then delete it. */
+        /*
+         * We're not in a big hurry.  Wait until noone's looking at old
+         * version, then free it.
+         */
         synchronize_rcu();
         kfree(old);
 
         return 0;
 }
 
+/*L:052
+ * Receiving notifications from the Guest is usually done by attaching a
+ * particular LHCALL_NOTIFY value to an event filedescriptor.  The eventfd will
+ * become readable when the Guest does an LHCALL_NOTIFY with that value.
+ *
+ * This is really convenient for processing each virtqueue in a separate
+ * thread.
+ */
 static int attach_eventfd(struct lguest *lg, const unsigned long __user *input)
 {
         unsigned long addr, fd;
@@ -79,15 +157,22 @@ static int attach_eventfd(struct lguest *lg, const unsigned long __user *input)
         if (get_user(fd, input) != 0)
                 return -EFAULT;
 
+        /*
+         * Just make sure two callers don't add eventfds at once.  We really
+         * only need to lock against callers adding to the same Guest, so using
+         * the Big Lguest Lock is overkill.  But this is setup, not a fast path.
+         */
         mutex_lock(&lguest_lock);
         err = add_eventfd(lg, addr, fd);
         mutex_unlock(&lguest_lock);
 
-        return 0;
+        return err;
 }
 
-/*L:050 Sending an interrupt is done by writing LHREQ_IRQ and an interrupt
- * number to /dev/lguest. */
+/*L:050
+ * Sending an interrupt is done by writing LHREQ_IRQ and an interrupt
+ * number to /dev/lguest.
+ */
 static int user_send_irq(struct lg_cpu *cpu, const unsigned long __user *input)
 {
         unsigned long irq;
@@ -97,12 +182,18 @@ static int user_send_irq(struct lg_cpu *cpu, const unsigned long __user *input)
         if (irq >= LGUEST_IRQS)
                 return -EINVAL;
 
+        /*
+         * Next time the Guest runs, the core code will see if it can deliver
+         * this interrupt.
+         */
         set_interrupt(cpu, irq);
         return 0;
 }
 
-/*L:040 Once our Guest is initialized, the Launcher makes it run by reading
- * from /dev/lguest. */
+/*L:040
+ * Once our Guest is initialized, the Launcher makes it run by reading
+ * from /dev/lguest.
+ */
 static ssize_t read(struct file *file, char __user *user, size_t size,loff_t*o)
 {
         struct lguest *lg = file->private_data;
@@ -138,8 +229,10 @@ static ssize_t read(struct file *file, char __user *user, size_t size,loff_t*o)
                 return len;
         }
 
-        /* If we returned from read() last time because the Guest sent I/O,
-         * clear the flag. */
+        /*
+         * If we returned from read() last time because the Guest sent I/O,
+         * clear the flag.
+         */
         if (cpu->pending_notify)
                 cpu->pending_notify = 0;
 
@@ -147,8 +240,10 @@ static ssize_t read(struct file *file, char __user *user, size_t size,loff_t*o)
         return run_guest(cpu, (unsigned long __user *)user);
 }
 
-/*L:025 This actually initializes a CPU.  For the moment, a Guest is only
- * uniprocessor, so "id" is always 0. */
+/*L:025
+ * This actually initializes a CPU.  For the moment, a Guest is only
+ * uniprocessor, so "id" is always 0.
+ */
 static int lg_cpu_start(struct lg_cpu *cpu, unsigned id, unsigned long start_ip)
 {
         /* We have a limited number the number of CPUs in the lguest struct. */
@@ -163,8 +258,10 @@ static int lg_cpu_start(struct lg_cpu *cpu, unsigned id, unsigned long start_ip)
         /* Each CPU has a timer it can set. */
         init_clockdev(cpu);
 
-        /* We need a complete page for the Guest registers: they are accessible
-         * to the Guest and we can only grant it access to whole pages. */
+        /*
+         * We need a complete page for the Guest registers: they are accessible
+         * to the Guest and we can only grant it access to whole pages.
+         */
         cpu->regs_page = get_zeroed_page(GFP_KERNEL);
         if (!cpu->regs_page)
                 return -ENOMEM;
@@ -172,29 +269,38 @@ static int lg_cpu_start(struct lg_cpu *cpu, unsigned id, unsigned long start_ip)
         /* We actually put the registers at the bottom of the page. */
         cpu->regs = (void *)cpu->regs_page + PAGE_SIZE - sizeof(*cpu->regs);
 
-        /* Now we initialize the Guest's registers, handing it the start
-         * address. */
+        /*
+         * Now we initialize the Guest's registers, handing it the start
+         * address.
+         */
         lguest_arch_setup_regs(cpu, start_ip);
 
-        /* We keep a pointer to the Launcher task (ie. current task) for when
-         * other Guests want to wake this one (eg. console input). */
+        /*
+         * We keep a pointer to the Launcher task (ie. current task) for when
+         * other Guests want to wake this one (eg. console input).
+         */
         cpu->tsk = current;
 
-        /* We need to keep a pointer to the Launcher's memory map, because if
+        /*
+         * We need to keep a pointer to the Launcher's memory map, because if
          * the Launcher dies we need to clean it up.  If we don't keep a
-         * reference, it is destroyed before close() is called. */
+         * reference, it is destroyed before close() is called.
+         */
         cpu->mm = get_task_mm(cpu->tsk);
 
-        /* We remember which CPU's pages this Guest used last, for optimization
-         * when the same Guest runs on the same CPU twice. */
+        /*
+         * We remember which CPU's pages this Guest used last, for optimization
+         * when the same Guest runs on the same CPU twice.
+         */
         cpu->last_pages = NULL;
 
         /* No error == success. */
         return 0;
 }
 
-/*L:020 The initialization write supplies 3 pointer sized (32 or 64 bit)
- * values (in addition to the LHREQ_INITIALIZE value).  These are:
+/*L:020
+ * The initialization write supplies 3 pointer sized (32 or 64 bit) values (in
+ * addition to the LHREQ_INITIALIZE value).  These are:
  *
  * base: The start of the Guest-physical memory inside the Launcher memory.
  *
@@ -206,14 +312,15 @@ static int lg_cpu_start(struct lg_cpu *cpu, unsigned id, unsigned long start_ip)
  */
 static int initialize(struct file *file, const unsigned long __user *input)
 {
-        /* "struct lguest" contains everything we (the Host) know about a
-         * Guest. */
+        /* "struct lguest" contains all we (the Host) know about a Guest. */
         struct lguest *lg;
         int err;
         unsigned long args[3];
 
-        /* We grab the Big Lguest lock, which protects against multiple
-         * simultaneous initializations. */
+        /*
+         * We grab the Big Lguest lock, which protects against multiple
+         * simultaneous initializations.
+         */
         mutex_lock(&lguest_lock);
         /* You can't initialize twice!  Close the device and start again... */
         if (file->private_data) {
@@ -248,8 +355,10 @@ static int initialize(struct file *file, const unsigned long __user *input)
         if (err)
                 goto free_eventfds;
 
-        /* Initialize the Guest's shadow page tables, using the toplevel
-         * address the Launcher gave us.  This allocates memory, so can fail. */
+        /*
+         * Initialize the Guest's shadow page tables, using the toplevel
+         * address the Launcher gave us.  This allocates memory, so can fail.
+         */
         err = init_guest_pagetable(lg);
         if (err)
                 goto free_regs;
@@ -274,20 +383,24 @@ unlock:
         return err;
 }
 
-/*L:010 The first operation the Launcher does must be a write.  All writes
+/*L:010
+ * The first operation the Launcher does must be a write.  All writes
  * start with an unsigned long number: for the first write this must be
  * LHREQ_INITIALIZE to set up the Guest.  After that the Launcher can use
- * writes of other values to send interrupts.
+ * writes of other values to send interrupts or set up receipt of notifications.
  *
  * Note that we overload the "offset" in the /dev/lguest file to indicate what
- * CPU number we're dealing with.  Currently this is always 0, since we only
+ * CPU number we're dealing with.  Currently this is always 0 since we only
  * support uniprocessor Guests, but you can see the beginnings of SMP support
- * here. */
+ * here.
+ */
 static ssize_t write(struct file *file, const char __user *in,
                      size_t size, loff_t *off)
 {
-        /* Once the Guest is initialized, we hold the "struct lguest" in the
-         * file private data. */
+        /*
+         * Once the Guest is initialized, we hold the "struct lguest" in the
+         * file private data.
+         */
         struct lguest *lg = file->private_data;
         const unsigned long __user *input = (const unsigned long __user *)in;
         unsigned long req;
@@ -322,13 +435,15 @@ static ssize_t write(struct file *file, const char __user *in,
         }
 }
 
-/*L:060 The final piece of interface code is the close() routine.  It reverses
+/*L:060
+ * The final piece of interface code is the close() routine.  It reverses
  * everything done in initialize().  This is usually called because the
  * Launcher exited.
  *
  * Note that the close routine returns 0 or a negative error number: it can't
  * really fail, but it can whine.  I blame Sun for this wart, and K&R C for
- * letting them do it. :*/
+ * letting them do it.
+:*/
 static int close(struct inode *inode, struct file *file)
 {
         struct lguest *lg = file->private_data;
@@ -338,8 +453,10 @@ static int close(struct inode *inode, struct file *file)
         if (!lg)
                 return 0;
 
-        /* We need the big lock, to protect from inter-guest I/O and other
-         * Launchers initializing guests. */
+        /*
+         * We need the big lock, to protect from inter-guest I/O and other
+         * Launchers initializing guests.
+         */
         mutex_lock(&lguest_lock);
 
         /* Free up the shadow page tables for the Guest. */
@@ -350,18 +467,22 @@ static int close(struct inode *inode, struct file *file)
                 hrtimer_cancel(&lg->cpus[i].hrt);
                 /* We can free up the register page we allocated. */
                 free_page(lg->cpus[i].regs_page);
-                /* Now all the memory cleanups are done, it's safe to release
-                 * the Launcher's memory management structure. */
+                /*
+                 * Now all the memory cleanups are done, it's safe to release
+                 * the Launcher's memory management structure.
+                 */
                 mmput(lg->cpus[i].mm);
         }
 
         /* Release any eventfds they registered. */
         for (i = 0; i < lg->eventfds->num; i++)
-                fput(lg->eventfds->map[i].event);
+                eventfd_ctx_put(lg->eventfds->map[i].event);
         kfree(lg->eventfds);
 
-        /* If lg->dead doesn't contain an error code it will be NULL or a
-         * kmalloc()ed string, either of which is ok to hand to kfree(). */
+        /*
+         * If lg->dead doesn't contain an error code it will be NULL or a
+         * kmalloc()ed string, either of which is ok to hand to kfree().
+         */
         if (!IS_ERR(lg->dead))
                 kfree(lg->dead);
         /* Free the memory allocated to the lguest_struct */
@@ -385,7 +506,8 @@ static int close(struct inode *inode, struct file *file)
  *
  * We begin our understanding with the Host kernel interface which the Launcher
  * uses: reading and writing a character device called /dev/lguest.  All the
- * work happens in the read(), write() and close() routines: */
+ * work happens in the read(), write() and close() routines:
+ */
 static struct file_operations lguest_fops = {
         .owner   = THIS_MODULE,
         .release = close,
@@ -393,8 +515,10 @@ static struct file_operations lguest_fops = {
         .read    = read,
 };
 
-/* This is a textbook example of a "misc" character device.  Populate a "struct
- * miscdevice" and register it with misc_register(). */
+/*
+ * This is a textbook example of a "misc" character device.  Populate a "struct
+ * miscdevice" and register it with misc_register().
+ */
 static struct miscdevice lguest_dev = {
         .minor  = MISC_DYNAMIC_MINOR,
         .name   = "lguest",
diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c
index a6fe1abda240..a8d0aee3bc0e 100644
--- a/drivers/lguest/page_tables.c
+++ b/drivers/lguest/page_tables.c
@@ -1,9 +1,11 @@
-/*P:700 The pagetable code, on the other hand, still shows the scars of
+/*P:700
+ * The pagetable code, on the other hand, still shows the scars of
  * previous encounters.  It's functional, and as neat as it can be in the
  * circumstances, but be wary, for these things are subtle and break easily.
  * The Guest provides a virtual to physical mapping, but we can neither trust
  * it nor use it: we verify and convert it here then point the CPU to the
- * converted Guest pages when running the Guest. :*/
+ * converted Guest pages when running the Guest.
+:*/
 
 /* Copyright (C) Rusty Russell IBM Corporation 2006.
  * GPL v2 and any later version */
@@ -17,18 +19,20 @@
 #include <asm/bootparam.h>
 #include "lg.h"
 
-/*M:008 We hold reference to pages, which prevents them from being swapped.
+/*M:008
+ * We hold reference to pages, which prevents them from being swapped.
  * It'd be nice to have a callback in the "struct mm_struct" when Linux wants
  * to swap out.  If we had this, and a shrinker callback to trim PTE pages, we
- * could probably consider launching Guests as non-root. :*/
+ * could probably consider launching Guests as non-root.
+:*/
 
 /*H:300
  * The Page Table Code
  *
- * We use two-level page tables for the Guest.  If you're not entirely
- * comfortable with virtual addresses, physical addresses and page tables then
- * I recommend you review arch/x86/lguest/boot.c's "Page Table Handling" (with
- * diagrams!).
+ * We use two-level page tables for the Guest, or three-level with PAE.  If
+ * you're not entirely comfortable with virtual addresses, physical addresses
+ * and page tables then I recommend you review arch/x86/lguest/boot.c's "Page
+ * Table Handling" (with diagrams!).
  *
  * The Guest keeps page tables, but we maintain the actual ones here: these are
  * called "shadow" page tables.  Which is a very Guest-centric name: these are
@@ -45,16 +49,18 @@
  *  (v) Flushing (throwing away) page tables,
  *  (vi) Mapping the Switcher when the Guest is about to run,
  *  (vii) Setting up the page tables initially.
- :*/
+:*/
 
-
-/* 1024 entries in a page table page maps 1024 pages: 4MB.  The Switcher is
- * conveniently placed at the top 4MB, so it uses a separate, complete PTE
- * page.  */
+/*
+ * The Switcher uses the complete top PTE page.  That's 1024 PTE entries (4MB)
+ * or 512 PTE entries with PAE (2MB).
+ */
 #define SWITCHER_PGD_INDEX (PTRS_PER_PGD - 1)
 
-/* For PAE we need the PMD index as well. We use the last 2MB, so we
- * will need the last pmd entry of the last pmd page.  */
+/*
+ * For PAE we need the PMD index as well. We use the last 2MB, so we
+ * will need the last pmd entry of the last pmd page.
+ */
 #ifdef CONFIG_X86_PAE
 #define SWITCHER_PMD_INDEX      (PTRS_PER_PMD - 1)
 #define RESERVE_MEM             2U
@@ -64,14 +70,18 @@
 #define CHECK_GPGD_MASK         _PAGE_TABLE
 #endif
 
-/* We actually need a separate PTE page for each CPU.  Remember that after the
+/*
+ * We actually need a separate PTE page for each CPU.  Remember that after the
  * Switcher code itself comes two pages for each CPU, and we don't want this
- * CPU's guest to see the pages of any other CPU. */
+ * CPU's guest to see the pages of any other CPU.
+ */
 static DEFINE_PER_CPU(pte_t *, switcher_pte_pages);
 #define switcher_pte_page(cpu) per_cpu(switcher_pte_pages, cpu)
 
-/*H:320 The page table code is curly enough to need helper functions to keep it
- * clear and clean.
+/*H:320
+ * The page table code is curly enough to need helper functions to keep it
+ * clear and clean.  The kernel itself provides many of them; one advantage
+ * of insisting that the Guest and Host use the same CONFIG_PAE setting.
  *
  * There are two functions which return pointers to the shadow (aka "real")
  * page tables.
@@ -79,7 +89,8 @@ static DEFINE_PER_CPU(pte_t *, switcher_pte_pages);
  * spgd_addr() takes the virtual address and returns a pointer to the top-level
  * page directory entry (PGD) for that address.  Since we keep track of several
  * page tables, the "i" argument tells us which one we're interested in (it's
- * usually the current one). */
+ * usually the current one).
+ */
 static pgd_t *spgd_addr(struct lg_cpu *cpu, u32 i, unsigned long vaddr)
 {
         unsigned int index = pgd_index(vaddr);
@@ -96,9 +107,11 @@ static pgd_t *spgd_addr(struct lg_cpu *cpu, u32 i, unsigned long vaddr)
 }
 
 #ifdef CONFIG_X86_PAE
-/* This routine then takes the PGD entry given above, which contains the
+/*
+ * This routine then takes the PGD entry given above, which contains the
  * address of the PMD page.  It then returns a pointer to the PMD entry for the
- * given address. */
+ * given address.
+ */
 static pmd_t *spmd_addr(struct lg_cpu *cpu, pgd_t spgd, unsigned long vaddr)
 {
         unsigned int index = pmd_index(vaddr);
@@ -119,9 +132,11 @@ static pmd_t *spmd_addr(struct lg_cpu *cpu, pgd_t spgd, unsigned long vaddr)
 }
 #endif
 
-/* This routine then takes the page directory entry returned above, which
+/*
+ * This routine then takes the page directory entry returned above, which
  * contains the address of the page table entry (PTE) page.  It then returns a
- * pointer to the PTE entry for the given address. */
+ * pointer to the PTE entry for the given address.
+ */
 static pte_t *spte_addr(struct lg_cpu *cpu, pgd_t spgd, unsigned long vaddr)
 {
 #ifdef CONFIG_X86_PAE
@@ -139,8 +154,10 @@ static pte_t *spte_addr(struct lg_cpu *cpu, pgd_t spgd, unsigned long vaddr)
         return &page[pte_index(vaddr)];
 }
 
-/* These two functions just like the above two, except they access the Guest
- * page tables.  Hence they return a Guest address. */
+/*
+ * These functions are just like the above two, except they access the Guest
+ * page tables.  Hence they return a Guest address.
+ */
 static unsigned long gpgd_addr(struct lg_cpu *cpu, unsigned long vaddr)
 {
         unsigned int index = vaddr >> (PGDIR_SHIFT);
@@ -148,6 +165,7 @@ static unsigned long gpgd_addr(struct lg_cpu *cpu, unsigned long vaddr)
 }
 
 #ifdef CONFIG_X86_PAE
+/* Follow the PGD to the PMD. */
 static unsigned long gpmd_addr(pgd_t gpgd, unsigned long vaddr)
 {
         unsigned long gpage = pgd_pfn(gpgd) << PAGE_SHIFT;
@@ -155,6 +173,7 @@ static unsigned long gpmd_addr(pgd_t gpgd, unsigned long vaddr)
         return gpage + pmd_index(vaddr) * sizeof(pmd_t);
 }
 
+/* Follow the PMD to the PTE. */
 static unsigned long gpte_addr(struct lg_cpu *cpu,
                                pmd_t gpmd, unsigned long vaddr)
 {
@@ -164,6 +183,7 @@ static unsigned long gpte_addr(struct lg_cpu *cpu,
         return gpage + pte_index(vaddr) * sizeof(pte_t);
 }
 #else
+/* Follow the PGD to the PTE (no mid-level for !PAE). */
 static unsigned long gpte_addr(struct lg_cpu *cpu,
                                 pgd_t gpgd, unsigned long vaddr)
 {
@@ -175,17 +195,21 @@ static unsigned long gpte_addr(struct lg_cpu *cpu,
 #endif
 /*:*/
 
-/*M:014 get_pfn is slow: we could probably try to grab batches of pages here as
- * an optimization (ie. pre-faulting). :*/
+/*M:014
+ * get_pfn is slow: we could probably try to grab batches of pages here as
+ * an optimization (ie. pre-faulting).
+:*/
 
-/*H:350 This routine takes a page number given by the Guest and converts it to
+/*H:350
+ * This routine takes a page number given by the Guest and converts it to
  * an actual, physical page number.  It can fail for several reasons: the
  * virtual address might not be mapped by the Launcher, the write flag is set
  * and the page is read-only, or the write flag was set and the page was
  * shared so had to be copied, but we ran out of memory.
  *
  * This holds a reference to the page, so release_pte() is careful to put that
- * back. */
+ * back.
+ */
 static unsigned long get_pfn(unsigned long virtpfn, int write)
 {
         struct page *page;
@@ -198,33 +222,41 @@ static unsigned long get_pfn(unsigned long virtpfn, int write)
         return -1UL;
 }
 
-/*H:340 Converting a Guest page table entry to a shadow (ie. real) page table
+/*H:340
+ * Converting a Guest page table entry to a shadow (ie. real) page table
  * entry can be a little tricky.  The flags are (almost) the same, but the
  * Guest PTE contains a virtual page number: the CPU needs the real page
- * number. */
+ * number.
+ */
 static pte_t gpte_to_spte(struct lg_cpu *cpu, pte_t gpte, int write)
 {
         unsigned long pfn, base, flags;
 
-        /* The Guest sets the global flag, because it thinks that it is using
+        /*
+         * The Guest sets the global flag, because it thinks that it is using
          * PGE.  We only told it to use PGE so it would tell us whether it was
          * flushing a kernel mapping or a userspace mapping.  We don't actually
-         * use the global bit, so throw it away. */
+         * use the global bit, so throw it away.
+         */
         flags = (pte_flags(gpte) & ~_PAGE_GLOBAL);
 
         /* The Guest's pages are offset inside the Launcher. */
         base = (unsigned long)cpu->lg->mem_base / PAGE_SIZE;
 
-        /* We need a temporary "unsigned long" variable to hold the answer from
+        /*
+         * We need a temporary "unsigned long" variable to hold the answer from
          * get_pfn(), because it returns 0xFFFFFFFF on failure, which wouldn't
          * fit in spte.pfn.  get_pfn() finds the real physical number of the
-         * page, given the virtual number. */
+         * page, given the virtual number.
+         */
         pfn = get_pfn(base + pte_pfn(gpte), write);
         if (pfn == -1UL) {
                 kill_guest(cpu, "failed to get page %lu", pte_pfn(gpte));
-                /* When we destroy the Guest, we'll go through the shadow page
+                /*
+                 * When we destroy the Guest, we'll go through the shadow page
                  * tables and release_pte() them.  Make sure we don't think
-                 * this one is valid! */
+                 * this one is valid!
+                 */
                 flags = 0;
         }
         /* Now we assemble our shadow PTE from the page number and flags. */
@@ -234,8 +266,10 @@ static pte_t gpte_to_spte(struct lg_cpu *cpu, pte_t gpte, int write)
 /*H:460 And to complete the chain, release_pte() looks like this: */
 static void release_pte(pte_t pte)
 {
-        /* Remember that get_user_pages_fast() took a reference to the page, in
-         * get_pfn()?  We have to put it back now. */
+        /*
+         * Remember that get_user_pages_fast() took a reference to the page, in
+         * get_pfn()?  We have to put it back now.
+         */
         if (pte_flags(pte) & _PAGE_PRESENT)
                 put_page(pte_page(pte));
 }
@@ -273,7 +307,8 @@ static void check_gpmd(struct lg_cpu *cpu, pmd_t gpmd)
  * and return to the Guest without it knowing.
  *
  * If we fixed up the fault (ie. we mapped the address), this routine returns
- * true.  Otherwise, it was a real fault and we need to tell the Guest. */
+ * true.  Otherwise, it was a real fault and we need to tell the Guest.
+ */
 bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode)
 {
         pgd_t gpgd;
@@ -282,6 +317,7 @@ bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode)
         pte_t gpte;
         pte_t *spte;
 
+        /* Mid level for PAE. */
 #ifdef CONFIG_X86_PAE
         pmd_t *spmd;
         pmd_t gpmd;
@@ -298,22 +334,26 @@ bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode)
         if (!(pgd_flags(*spgd) & _PAGE_PRESENT)) {
                 /* No shadow entry: allocate a new shadow PTE page. */
                 unsigned long ptepage = get_zeroed_page(GFP_KERNEL);
-                /* This is not really the Guest's fault, but killing it is
-                 * simple for this corner case. */
+                /*
+                 * This is not really the Guest's fault, but killing it is
+                 * simple for this corner case.
+                 */
                 if (!ptepage) {
                         kill_guest(cpu, "out of memory allocating pte page");
                         return false;
                 }
                 /* We check that the Guest pgd is OK. */
                 check_gpgd(cpu, gpgd);
-                /* And we copy the flags to the shadow PGD entry.  The page
-                 * number in the shadow PGD is the page we just allocated. */
+                /*
+                 * And we copy the flags to the shadow PGD entry.  The page
+                 * number in the shadow PGD is the page we just allocated.
+                 */
                 set_pgd(spgd, __pgd(__pa(ptepage) | pgd_flags(gpgd)));
         }
 
 #ifdef CONFIG_X86_PAE
         gpmd = lgread(cpu, gpmd_addr(gpgd, vaddr), pmd_t);
-        /* middle level not present?  We can't map it in. */
+        /* Middle level not present?  We can't map it in. */
         if (!(pmd_flags(gpmd) & _PAGE_PRESENT))
                 return false;
 
@@ -324,8 +364,10 @@ bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode)
                 /* No shadow entry: allocate a new shadow PTE page. */
                 unsigned long ptepage = get_zeroed_page(GFP_KERNEL);
 
-                /* This is not really the Guest's fault, but killing it is
-                * simple for this corner case. */
+                /*
+                 * This is not really the Guest's fault, but killing it is
+                 * simple for this corner case.
+                 */
                 if (!ptepage) {
                         kill_guest(cpu, "out of memory allocating pte page");
                         return false;
@@ -334,27 +376,37 @@ bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode)
                 /* We check that the Guest pmd is OK. */
                 check_gpmd(cpu, gpmd);
 
-                /* And we copy the flags to the shadow PMD entry.  The page
-                 * number in the shadow PMD is the page we just allocated. */
+                /*
+                 * And we copy the flags to the shadow PMD entry.  The page
+                 * number in the shadow PMD is the page we just allocated.
+                 */
                 native_set_pmd(spmd, __pmd(__pa(ptepage) | pmd_flags(gpmd)));
         }
 
-        /* OK, now we look at the lower level in the Guest page table: keep its
-         * address, because we might update it later. */
+        /*
+         * OK, now we look at the lower level in the Guest page table: keep its
+         * address, because we might update it later.
+         */
         gpte_ptr = gpte_addr(cpu, gpmd, vaddr);
 #else
-        /* OK, now we look at the lower level in the Guest page table: keep its
-         * address, because we might update it later. */
+        /*
+         * OK, now we look at the lower level in the Guest page table: keep its
+         * address, because we might update it later.
+         */
         gpte_ptr = gpte_addr(cpu, gpgd, vaddr);
 #endif
+
+        /* Read the actual PTE value. */
         gpte = lgread(cpu, gpte_ptr, pte_t);
 
         /* If this page isn't in the Guest page tables, we can't page it in. */
         if (!(pte_flags(gpte) & _PAGE_PRESENT))
                 return false;
 
-        /* Check they're not trying to write to a page the Guest wants
-         * read-only (bit 2 of errcode == write). */
+        /*
+         * Check they're not trying to write to a page the Guest wants
+         * read-only (bit 2 of errcode == write).
+         */
         if ((errcode & 2) && !(pte_flags(gpte) & _PAGE_RW))
                 return false;
 
@@ -362,8 +414,10 @@ bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode)
         if ((errcode & 4) && !(pte_flags(gpte) & _PAGE_USER))
                 return false;
 
-        /* Check that the Guest PTE flags are OK, and the page number is below
-         * the pfn_limit (ie. not mapping the Launcher binary). */
+        /*
+         * Check that the Guest PTE flags are OK, and the page number is below
+         * the pfn_limit (ie. not mapping the Launcher binary).
+         */
         check_gpte(cpu, gpte);
 
         /* Add the _PAGE_ACCESSED and (for a write) _PAGE_DIRTY flag */
@@ -373,29 +427,40 @@ bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode)
 
         /* Get the pointer to the shadow PTE entry we're going to set. */
         spte = spte_addr(cpu, *spgd, vaddr);
-        /* If there was a valid shadow PTE entry here before, we release it.
-         * This can happen with a write to a previously read-only entry. */
+
+        /*
+         * If there was a valid shadow PTE entry here before, we release it.
+         * This can happen with a write to a previously read-only entry.
+         */
         release_pte(*spte);
 
-        /* If this is a write, we insist that the Guest page is writable (the
-         * final arg to gpte_to_spte()). */
+        /*
+         * If this is a write, we insist that the Guest page is writable (the
+         * final arg to gpte_to_spte()).
+         */
         if (pte_dirty(gpte))
                 *spte = gpte_to_spte(cpu, gpte, 1);
         else
-                /* If this is a read, don't set the "writable" bit in the page
+                /*
+                 * If this is a read, don't set the "writable" bit in the page
                  * table entry, even if the Guest says it's writable.  That way
                  * we will come back here when a write does actually occur, so
-                 * we can update the Guest's _PAGE_DIRTY flag. */
+                 * we can update the Guest's _PAGE_DIRTY flag.
+                 */
                 native_set_pte(spte, gpte_to_spte(cpu, pte_wrprotect(gpte), 0));
 
-        /* Finally, we write the Guest PTE entry back: we've set the
-         * _PAGE_ACCESSED and maybe the _PAGE_DIRTY flags. */
+        /*
+         * Finally, we write the Guest PTE entry back: we've set the
+         * _PAGE_ACCESSED and maybe the _PAGE_DIRTY flags.
+         */
         lgwrite(cpu, gpte_ptr, pte_t, gpte);
 
-        /* The fault is fixed, the page table is populated, the mapping
+        /*
+         * The fault is fixed, the page table is populated, the mapping
          * manipulated, the result returned and the code complete.  A small
          * delay and a trace of alliteration are the only indications the Guest
-         * has that a page fault occurred at all. */
+         * has that a page fault occurred at all.
+         */
         return true;
 }
 
@@ -408,7 +473,8 @@ bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode)
  * mapped, so it's overkill.
  *
  * This is a quick version which answers the question: is this virtual address
- * mapped by the shadow page tables, and is it writable? */
+ * mapped by the shadow page tables, and is it writable?
+ */
 static bool page_writable(struct lg_cpu *cpu, unsigned long vaddr)
 {
         pgd_t *spgd;
@@ -428,21 +494,26 @@ static bool page_writable(struct lg_cpu *cpu, unsigned long vaddr)
                 return false;
 #endif
 
-        /* Check the flags on the pte entry itself: it must be present and
-         * writable. */
+        /*
+         * Check the flags on the pte entry itself: it must be present and
+         * writable.
+         */
         flags = pte_flags(*(spte_addr(cpu, *spgd, vaddr)));
 
         return (flags & (_PAGE_PRESENT|_PAGE_RW)) == (_PAGE_PRESENT|_PAGE_RW);
 }
 
-/* So, when pin_stack_pages() asks us to pin a page, we check if it's already
+/*
+ * So, when pin_stack_pages() asks us to pin a page, we check if it's already
  * in the page tables, and if not, we call demand_page() with error code 2
- * (meaning "write"). */
+ * (meaning "write").
+ */
 void pin_page(struct lg_cpu *cpu, unsigned long vaddr)
 {
         if (!page_writable(cpu, vaddr) && !demand_page(cpu, vaddr, 2))
                 kill_guest(cpu, "bad stack page %#lx", vaddr);
 }
+/*:*/
 
 #ifdef CONFIG_X86_PAE
 static void release_pmd(pmd_t *spmd)
@@ -479,15 +550,21 @@ static void release_pgd(pgd_t *spgd)
 }
 
 #else /* !CONFIG_X86_PAE */
-/*H:450 If we chase down the release_pgd() code, it looks like this: */
+/*H:450
+ * If we chase down the release_pgd() code, the non-PAE version looks like
+ * this.  The PAE version is almost identical, but instead of calling
+ * release_pte it calls release_pmd(), which looks much like this.
+ */
 static void release_pgd(pgd_t *spgd)
 {
         /* If the entry's not present, there's nothing to release. */
         if (pgd_flags(*spgd) & _PAGE_PRESENT) {
                 unsigned int i;
-                /* Converting the pfn to find the actual PTE page is easy: turn
+                /*
+                 * Converting the pfn to find the actual PTE page is easy: turn
                  * the page number into a physical address, then convert to a
-                 * virtual address (easy for kernel pages like this one). */
+                 * virtual address (easy for kernel pages like this one).
+                 */
                 pte_t *ptepage = __va(pgd_pfn(*spgd) << PAGE_SHIFT);
                 /* For each entry in the page, we might need to release it. */
                 for (i = 0; i < PTRS_PER_PTE; i++)
@@ -499,9 +576,12 @@ static void release_pgd(pgd_t *spgd)
         }
 }
 #endif
-/*H:445 We saw flush_user_mappings() twice: once from the flush_user_mappings()
+
+/*H:445
+ * We saw flush_user_mappings() twice: once from the flush_user_mappings()
  * hypercall and once in new_pgdir() when we re-used a top-level pgdir page.
- * It simply releases every PTE page from 0 up to the Guest's kernel address. */
+ * It simply releases every PTE page from 0 up to the Guest's kernel address.
+ */
 static void flush_user_mappings(struct lguest *lg, int idx)
 {
         unsigned int i;
@@ -510,10 +590,12 @@ static void flush_user_mappings(struct lguest *lg, int idx)
                 release_pgd(lg->pgdirs[idx].pgdir + i);
 }
 
-/*H:440 (v) Flushing (throwing away) page tables,
+/*H:440
+ * (v) Flushing (throwing away) page tables,
  *
  * The Guest has a hypercall to throw away the page tables: it's used when a
- * large number of mappings have been changed. */
+ * large number of mappings have been changed.
+ */
 void guest_pagetable_flush_user(struct lg_cpu *cpu)
 {
         /* Drop the userspace part of the current page table. */
@@ -551,9 +633,11 @@ unsigned long guest_pa(struct lg_cpu *cpu, unsigned long vaddr)
         return pte_pfn(gpte) * PAGE_SIZE | (vaddr & ~PAGE_MASK);
 }
 
-/* We keep several page tables.  This is a simple routine to find the page
+/*
+ * We keep several page tables.  This is a simple routine to find the page
  * table (if any) corresponding to this top-level address the Guest has given
- * us. */
+ * us.
+ */
 static unsigned int find_pgdir(struct lguest *lg, unsigned long pgtable)
 {
         unsigned int i;
@@ -563,9 +647,11 @@ static unsigned int find_pgdir(struct lguest *lg, unsigned long pgtable)
         return i;
 }
 
-/*H:435 And this is us, creating the new page directory.  If we really do
+/*H:435
+ * And this is us, creating the new page directory.  If we really do
  * allocate a new one (and so the kernel parts are not there), we set
- * blank_pgdir. */
+ * blank_pgdir.
+ */
 static unsigned int new_pgdir(struct lg_cpu *cpu,
                               unsigned long gpgdir,
                               int *blank_pgdir)
@@ -575,8 +661,10 @@ static unsigned int new_pgdir(struct lg_cpu *cpu,
         pmd_t *pmd_table;
 #endif
 
-        /* We pick one entry at random to throw out.  Choosing the Least
-         * Recently Used might be better, but this is easy. */
+        /*
+         * We pick one entry at random to throw out.  Choosing the Least
+         * Recently Used might be better, but this is easy.
+         */
         next = random32() % ARRAY_SIZE(cpu->lg->pgdirs);
         /* If it's never been allocated at all before, try now. */
         if (!cpu->lg->pgdirs[next].pgdir) {
@@ -587,8 +675,10 @@ static unsigned int new_pgdir(struct lg_cpu *cpu,
                         next = cpu->cpu_pgd;
                 else {
 #ifdef CONFIG_X86_PAE
-                        /* In PAE mode, allocate a pmd page and populate the
-                         * last pgd entry. */
+                        /*
+                         * In PAE mode, allocate a pmd page and populate the
+                         * last pgd entry.
+                         */
                         pmd_table = (pmd_t *)get_zeroed_page(GFP_KERNEL);
                         if (!pmd_table) {
                                 free_page((long)cpu->lg->pgdirs[next].pgdir);
@@ -598,8 +688,10 @@ static unsigned int new_pgdir(struct lg_cpu *cpu,
                                 set_pgd(cpu->lg->pgdirs[next].pgdir +
                                         SWITCHER_PGD_INDEX,
                                         __pgd(__pa(pmd_table) | _PAGE_PRESENT));
-                                /* This is a blank page, so there are no kernel
-                                 * mappings: caller must map the stack! */
+                                /*
+                                 * This is a blank page, so there are no kernel
+                                 * mappings: caller must map the stack!
+                                 */
                                 *blank_pgdir = 1;
                         }
 #else
@@ -615,19 +707,23 @@ static unsigned int new_pgdir(struct lg_cpu *cpu,
         return next;
 }
 
-/*H:430 (iv) Switching page tables
+/*H:430
+ * (iv) Switching page tables
  *
  * Now we've seen all the page table setting and manipulation, let's see
  * what happens when the Guest changes page tables (ie. changes the top-level
- * pgdir).  This occurs on almost every context switch. */
+ * pgdir).  This occurs on almost every context switch.
+ */
 void guest_new_pagetable(struct lg_cpu *cpu, unsigned long pgtable)
 {
         int newpgdir, repin = 0;
 
         /* Look to see if we have this one already. */
         newpgdir = find_pgdir(cpu->lg, pgtable);
-        /* If not, we allocate or mug an existing one: if it's a fresh one,
-         * repin gets set to 1. */
+        /*
+         * If not, we allocate or mug an existing one: if it's a fresh one,
+         * repin gets set to 1.
+         */
         if (newpgdir == ARRAY_SIZE(cpu->lg->pgdirs))
                 newpgdir = new_pgdir(cpu, pgtable, &repin);
         /* Change the current pgd index to the new one. */
@@ -637,9 +733,11 @@ void guest_new_pagetable(struct lg_cpu *cpu, unsigned long pgtable)
                 pin_stack_pages(cpu);
 }
 
-/*H:470 Finally, a routine which throws away everything: all PGD entries in all
+/*H:470
+ * Finally, a routine which throws away everything: all PGD entries in all
  * the shadow page tables, including the Guest's kernel mappings.  This is used
- * when we destroy the Guest. */
+ * when we destroy the Guest.
+ */
 static void release_all_pagetables(struct lguest *lg)
 {
         unsigned int i, j;
@@ -656,8 +754,10 @@ static void release_all_pagetables(struct lguest *lg)
                         spgd = lg->pgdirs[i].pgdir + SWITCHER_PGD_INDEX;
                         pmdpage = __va(pgd_pfn(*spgd) << PAGE_SHIFT);
 
-                        /* And release the pmd entries of that pmd page,
-                         * except for the switcher pmd. */
+                        /*
+                         * And release the pmd entries of that pmd page,
+                         * except for the switcher pmd.
+                         */
                         for (k = 0; k < SWITCHER_PMD_INDEX; k++)
                                 release_pmd(&pmdpage[k]);
 #endif
@@ -667,10 +767,12 @@ static void release_all_pagetables(struct lguest *lg)
                 }
 }
 
-/* We also throw away everything when a Guest tells us it's changed a kernel
+/*
+ * We also throw away everything when a Guest tells us it's changed a kernel
  * mapping.  Since kernel mappings are in every page table, it's easiest to
  * throw them all away.  This traps the Guest in amber for a while as
- * everything faults back in, but it's rare. */
+ * everything faults back in, but it's rare.
+ */
 void guest_pagetable_clear_all(struct lg_cpu *cpu)
 {
         release_all_pagetables(cpu->lg);
@@ -678,15 +780,19 @@ void guest_pagetable_clear_all(struct lg_cpu *cpu)
         pin_stack_pages(cpu);
 }
 /*:*/
-/*M:009 Since we throw away all mappings when a kernel mapping changes, our
+
+/*M:009
+ * Since we throw away all mappings when a kernel mapping changes, our
  * performance sucks for guests using highmem.  In fact, a guest with
  * PAGE_OFFSET 0xc0000000 (the default) and more than about 700MB of RAM is
  * usually slower than a Guest with less memory.
  *
  * This, of course, cannot be fixed.  It would take some kind of... well, I
- * don't know, but the term "puissant code-fu" comes to mind. :*/
+ * don't know, but the term "puissant code-fu" comes to mind.
+:*/
 
-/*H:420 This is the routine which actually sets the page table entry for then
+/*H:420
+ * This is the routine which actually sets the page table entry for then
  * "idx"'th shadow page table.
  *
  * Normally, we can just throw out the old entry and replace it with 0: if they
@@ -715,31 +821,36 @@ static void do_set_pte(struct lg_cpu *cpu, int idx,
                 spmd = spmd_addr(cpu, *spgd, vaddr);
                 if (pmd_flags(*spmd) & _PAGE_PRESENT) {
 #endif
-                        /* Otherwise, we start by releasing
-                         * the existing entry. */
+                        /* Otherwise, start by releasing the existing entry. */
                         pte_t *spte = spte_addr(cpu, *spgd, vaddr);
                         release_pte(*spte);
 
-                        /* If they're setting this entry as dirty or accessed,
-                         * we might as well put that entry they've given us
-                         * in now.  This shaves 10% off a
-                         * copy-on-write micro-benchmark. */
+                        /*
+                         * If they're setting this entry as dirty or accessed,
+                         * we might as well put that entry they've given us in
+                         * now.  This shaves 10% off a copy-on-write
+                         * micro-benchmark.
+                         */
                         if (pte_flags(gpte) & (_PAGE_DIRTY | _PAGE_ACCESSED)) {
                                 check_gpte(cpu, gpte);
                                 native_set_pte(spte,
                                                 gpte_to_spte(cpu, gpte,
                                                 pte_flags(gpte) & _PAGE_DIRTY));
-                        } else
-                                /* Otherwise kill it and we can demand_page()
-                                 * it in later. */
+                        } else {
+                                /*
+                                 * Otherwise kill it and we can demand_page()
+                                 * it in later.
+                                 */
                                 native_set_pte(spte, __pte(0));
+                        }
 #ifdef CONFIG_X86_PAE
                 }
 #endif
         }
 }
 
-/*H:410 Updating a PTE entry is a little trickier.
+/*H:410
+ * Updating a PTE entry is a little trickier.
  *
  * We keep track of several different page tables (the Guest uses one for each
  * process, so it makes sense to cache at least a few).  Each of these have
@@ -748,12 +859,15 @@ static void do_set_pte(struct lg_cpu *cpu, int idx,
  * all the page tables, not just the current one.  This is rare.
  *
  * The benefit is that when we have to track a new page table, we can keep all
- * the kernel mappings.  This speeds up context switch immensely. */
+ * the kernel mappings.  This speeds up context switch immensely.
+ */
 void guest_set_pte(struct lg_cpu *cpu,
                    unsigned long gpgdir, unsigned long vaddr, pte_t gpte)
 {
-        /* Kernel mappings must be changed on all top levels.  Slow, but doesn't
-         * happen often. */
+        /*
+         * Kernel mappings must be changed on all top levels.  Slow, but doesn't
+         * happen often.
+         */
         if (vaddr >= cpu->lg->kernel_address) {
                 unsigned int i;
                 for (i = 0; i < ARRAY_SIZE(cpu->lg->pgdirs); i++)
@@ -795,19 +909,25 @@ void guest_set_pgd(struct lguest *lg, unsigned long gpgdir, u32 idx)
                 /* ... throw it away. */
                 release_pgd(lg->pgdirs[pgdir].pgdir + idx);
 }
+
 #ifdef CONFIG_X86_PAE
+/* For setting a mid-level, we just throw everything away.  It's easy. */
 void guest_set_pmd(struct lguest *lg, unsigned long pmdp, u32 idx)
 {
         guest_pagetable_clear_all(&lg->cpus[0]);
 }
 #endif
 
-/* Once we know how much memory we have we can construct simple identity
- * (which set virtual == physical) and linear mappings
- * which will get the Guest far enough into the boot to create its own.
+/*H:505
+ * To get through boot, we construct simple identity page mappings (which
+ * set virtual == physical) and linear mappings which will get the Guest far
+ * enough into the boot to create its own.  The linear mapping means we
+ * simplify the Guest boot, but it makes assumptions about their PAGE_OFFSET,
+ * as you'll see.
  *
  * We lay them out of the way, just below the initrd (which is why we need to
- * know its size here). */
+ * know its size here).
+ */
 static unsigned long setup_pagetables(struct lguest *lg,
                                       unsigned long mem,
                                       unsigned long initrd_size)
@@ -825,8 +945,10 @@ static unsigned long setup_pagetables(struct lguest *lg,
         unsigned int phys_linear;
 #endif
 
-        /* We have mapped_pages frames to map, so we need
-         * linear_pages page tables to map them. */
+        /*
+         * We have mapped_pages frames to map, so we need linear_pages page
+         * tables to map them.
+         */
         mapped_pages = mem / PAGE_SIZE;
         linear_pages = (mapped_pages + PTRS_PER_PTE - 1) / PTRS_PER_PTE;
 
@@ -837,10 +959,16 @@ static unsigned long setup_pagetables(struct lguest *lg,
         linear = (void *)pgdir - linear_pages * PAGE_SIZE;
 
 #ifdef CONFIG_X86_PAE
+        /*
+         * And the single mid page goes below that.  We only use one, but
+         * that's enough to map 1G, which definitely gets us through boot.
+         */
         pmds = (void *)linear - PAGE_SIZE;
 #endif
-        /* Linear mapping is easy: put every page's address into the
-         * mapping in order. */
+        /*
+         * Linear mapping is easy: put every page's address into the
+         * mapping in order.
+         */
         for (i = 0; i < mapped_pages; i++) {
                 pte_t pte;
                 pte = pfn_pte(i, __pgprot(_PAGE_PRESENT|_PAGE_RW|_PAGE_USER));
@@ -848,11 +976,14 @@ static unsigned long setup_pagetables(struct lguest *lg,
                         return -EFAULT;
         }
 
-        /* The top level points to the linear page table pages above.
-         * We setup the identity and linear mappings here. */
 #ifdef CONFIG_X86_PAE
+        /*
+         * Make the Guest PMD entries point to the corresponding place in the
+         * linear mapping (up to one page worth of PMD).
+         */
         for (i = j = 0; i < mapped_pages && j < PTRS_PER_PMD;
              i += PTRS_PER_PTE, j++) {
+                /* FIXME: native_set_pmd is overkill here. */
                 native_set_pmd(&pmd, __pmd(((unsigned long)(linear + i)
                 - mem_base) | _PAGE_PRESENT | _PAGE_RW | _PAGE_USER));
 
@@ -860,18 +991,36 @@ static unsigned long setup_pagetables(struct lguest *lg,
                         return -EFAULT;
         }
 
+        /* One PGD entry, pointing to that PMD page. */
         set_pgd(&pgd, __pgd(((u32)pmds - mem_base) | _PAGE_PRESENT));
+        /* Copy it in as the first PGD entry (ie. addresses 0-1G). */
         if (copy_to_user(&pgdir[0], &pgd, sizeof(pgd)) != 0)
                 return -EFAULT;
+        /*
+         * And the third PGD entry (ie. addresses 3G-4G).
+         *
+         * FIXME: This assumes that PAGE_OFFSET for the Guest is 0xC0000000.
+         */
         if (copy_to_user(&pgdir[3], &pgd, sizeof(pgd)) != 0)
                 return -EFAULT;
 #else
+        /*
+         * The top level points to the linear page table pages above.
+         * We setup the identity and linear mappings here.
+         */
         phys_linear = (unsigned long)linear - mem_base;
         for (i = 0; i < mapped_pages; i += PTRS_PER_PTE) {
                 pgd_t pgd;
+                /*
+                 * Create a PGD entry which points to the right part of the
+                 * linear PTE pages.
+                 */
                 pgd = __pgd((phys_linear + i * sizeof(pte_t)) |
                             (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER));
 
+                /*
+                 * Copy it into the PGD page at 0 and PAGE_OFFSET.
+                 */
                 if (copy_to_user(&pgdir[i / PTRS_PER_PTE], &pgd, sizeof(pgd))
                     || copy_to_user(&pgdir[pgd_index(PAGE_OFFSET)
                                            + i / PTRS_PER_PTE],
@@ -880,15 +1029,19 @@ static unsigned long setup_pagetables(struct lguest *lg,
         }
 #endif
 
-        /* We return the top level (guest-physical) address: remember where
-         * this is. */
+        /*
+         * We return the top level (guest-physical) address: we remember where
+         * this is to write it into lguest_data when the Guest initializes.
+         */
         return (unsigned long)pgdir - mem_base;
 }
 
-/*H:500 (vii) Setting up the page tables initially.
+/*H:500
+ * (vii) Setting up the page tables initially.
  *
  * When a Guest is first created, the Launcher tells us where the toplevel of
- * its first page table is.  We set some things up here: */
+ * its first page table is.  We set some things up here:
+ */
 int init_guest_pagetable(struct lguest *lg)
 {
         u64 mem;
@@ -898,21 +1051,27 @@ int init_guest_pagetable(struct lguest *lg)
         pgd_t *pgd;
         pmd_t *pmd_table;
 #endif
-        /* Get the Guest memory size and the ramdisk size from the boot header
-         * located at lg->mem_base (Guest address 0). */
+        /*
+         * Get the Guest memory size and the ramdisk size from the boot header
+         * located at lg->mem_base (Guest address 0).
+         */
         if (copy_from_user(&mem, &boot->e820_map[0].size, sizeof(mem))
             || get_user(initrd_size, &boot->hdr.ramdisk_size))
                 return -EFAULT;
 
-        /* We start on the first shadow page table, and give it a blank PGD
-         * page. */
+        /*
+         * We start on the first shadow page table, and give it a blank PGD
+         * page.
+         */
         lg->pgdirs[0].gpgdir = setup_pagetables(lg, mem, initrd_size);
         if (IS_ERR_VALUE(lg->pgdirs[0].gpgdir))
                 return lg->pgdirs[0].gpgdir;
         lg->pgdirs[0].pgdir = (pgd_t *)get_zeroed_page(GFP_KERNEL);
         if (!lg->pgdirs[0].pgdir)
                 return -ENOMEM;
+
 #ifdef CONFIG_X86_PAE
+        /* For PAE, we also create the initial mid-level. */
         pgd = lg->pgdirs[0].pgdir;
         pmd_table = (pmd_t *) get_zeroed_page(GFP_KERNEL);
         if (!pmd_table)
@@ -921,27 +1080,33 @@ int init_guest_pagetable(struct lguest *lg)
         set_pgd(pgd + SWITCHER_PGD_INDEX,
                 __pgd(__pa(pmd_table) | _PAGE_PRESENT));
 #endif
+
+        /* This is the current page table. */
         lg->cpus[0].cpu_pgd = 0;
         return 0;
 }
 
-/* When the Guest calls LHCALL_LGUEST_INIT we do more setup. */
+/*H:508 When the Guest calls LHCALL_LGUEST_INIT we do more setup. */
 void page_table_guest_data_init(struct lg_cpu *cpu)
 {
         /* We get the kernel address: above this is all kernel memory. */
         if (get_user(cpu->lg->kernel_address,
                 &cpu->lg->lguest_data->kernel_address)
-                /* We tell the Guest that it can't use the top 2 or 4 MB
-                 * of virtual addresses used by the Switcher. */
+                /*
+                 * We tell the Guest that it can't use the top 2 or 4 MB
+                 * of virtual addresses used by the Switcher.
+                 */
                 || put_user(RESERVE_MEM * 1024 * 1024,
                         &cpu->lg->lguest_data->reserve_mem)
                 || put_user(cpu->lg->pgdirs[0].gpgdir,
                         &cpu->lg->lguest_data->pgdir))
                 kill_guest(cpu, "bad guest page %p", cpu->lg->lguest_data);
 
-        /* In flush_user_mappings() we loop from 0 to
+        /*
+         * In flush_user_mappings() we loop from 0 to
          * "pgd_index(lg->kernel_address)".  This assumes it won't hit the
-         * Switcher mappings, so check that now. */
+         * Switcher mappings, so check that now.
+         */
 #ifdef CONFIG_X86_PAE
         if (pgd_index(cpu->lg->kernel_address) == SWITCHER_PGD_INDEX &&
                 pmd_index(cpu->lg->kernel_address) == SWITCHER_PMD_INDEX)
@@ -964,12 +1129,14 @@ void free_guest_pagetable(struct lguest *lg)
                 free_page((long)lg->pgdirs[i].pgdir);
 }
 
-/*H:480 (vi) Mapping the Switcher when the Guest is about to run.
+/*H:480
+ * (vi) Mapping the Switcher when the Guest is about to run.
  *
  * The Switcher and the two pages for this CPU need to be visible in the
  * Guest (and not the pages for other CPUs).  We have the appropriate PTE pages
  * for each CPU already set up, we just need to hook them in now we know which
- * Guest is about to run on this CPU. */
+ * Guest is about to run on this CPU.
+ */
 void map_switcher_in_guest(struct lg_cpu *cpu, struct lguest_pages *pages)
 {
         pte_t *switcher_pte_page = __get_cpu_var(switcher_pte_pages);
@@ -980,30 +1147,38 @@ void map_switcher_in_guest(struct lg_cpu *cpu, struct lguest_pages *pages)
         pmd_t switcher_pmd;
         pmd_t *pmd_table;
 
+        /* FIXME: native_set_pmd is overkill here. */
         native_set_pmd(&switcher_pmd, pfn_pmd(__pa(switcher_pte_page) >>
                        PAGE_SHIFT, PAGE_KERNEL_EXEC));
 
+        /* Figure out where the pmd page is, by reading the PGD, and converting
+         * it to a virtual address. */
         pmd_table = __va(pgd_pfn(cpu->lg->
                         pgdirs[cpu->cpu_pgd].pgdir[SWITCHER_PGD_INDEX])
                                                                 << PAGE_SHIFT);
+        /* Now write it into the shadow page table. */
         native_set_pmd(&pmd_table[SWITCHER_PMD_INDEX], switcher_pmd);
 #else
         pgd_t switcher_pgd;
 
-        /* Make the last PGD entry for this Guest point to the Switcher's PTE
-         * page for this CPU (with appropriate flags). */
+        /*
+         * Make the last PGD entry for this Guest point to the Switcher's PTE
+         * page for this CPU (with appropriate flags).
+         */
         switcher_pgd = __pgd(__pa(switcher_pte_page) | __PAGE_KERNEL_EXEC);
 
         cpu->lg->pgdirs[cpu->cpu_pgd].pgdir[SWITCHER_PGD_INDEX] = switcher_pgd;
 
 #endif
-        /* We also change the Switcher PTE page.  When we're running the Guest,
+        /*
+         * We also change the Switcher PTE page.  When we're running the Guest,
          * we want the Guest's "regs" page to appear where the first Switcher
          * page for this CPU is.  This is an optimization: when the Switcher
          * saves the Guest registers, it saves them into the first page of this
          * CPU's "struct lguest_pages": if we make sure the Guest's register
          * page is already mapped there, we don't have to copy them out
-         * again. */
+         * again.
+         */
         pfn = __pa(cpu->regs_page) >> PAGE_SHIFT;
         native_set_pte(&regs_pte, pfn_pte(pfn, PAGE_KERNEL));
         native_set_pte(&switcher_pte_page[pte_index((unsigned long)pages)],
@@ -1019,10 +1194,12 @@ static void free_switcher_pte_pages(void)
                 free_page((long)switcher_pte_page(i));
 }
 
-/*H:520 Setting up the Switcher PTE page for given CPU is fairly easy, given
+/*H:520
+ * Setting up the Switcher PTE page for given CPU is fairly easy, given
  * the CPU number and the "struct page"s for the Switcher code itself.
  *
- * Currently the Switcher is less than a page long, so "pages" is always 1. */
+ * Currently the Switcher is less than a page long, so "pages" is always 1.
+ */
 static __init void populate_switcher_pte_page(unsigned int cpu,
                                               struct page *switcher_page[],
                                               unsigned int pages)
@@ -1043,13 +1220,16 @@ static __init void populate_switcher_pte_page(unsigned int cpu,
         native_set_pte(&pte[i], pfn_pte(page_to_pfn(switcher_page[i]),
                          __pgprot(_PAGE_PRESENT|_PAGE_ACCESSED|_PAGE_RW)));
 
-        /* The second page contains the "struct lguest_ro_state", and is
-         * read-only. */
+        /*
+         * The second page contains the "struct lguest_ro_state", and is
+         * read-only.
+         */
         native_set_pte(&pte[i+1], pfn_pte(page_to_pfn(switcher_page[i+1]),
                            __pgprot(_PAGE_PRESENT|_PAGE_ACCESSED)));
 }
 
-/* We've made it through the page table code.  Perhaps our tired brains are
+/*
+ * We've made it through the page table code.  Perhaps our tired brains are
  * still processing the details, or perhaps we're simply glad it's over.
  *
  * If nothing else, note that all this complexity in juggling shadow page tables
@@ -1058,10 +1238,13 @@ static __init void populate_switcher_pte_page(unsigned int cpu,
  * uses exotic direct Guest pagetable manipulation, and why both Intel and AMD
  * have implemented shadow page table support directly into hardware.
  *
- * There is just one file remaining in the Host. */
+ * There is just one file remaining in the Host.
+ */
 
-/*H:510 At boot or module load time, init_pagetables() allocates and populates
- * the Switcher PTE page for each CPU. */
+/*H:510
+ * At boot or module load time, init_pagetables() allocates and populates
+ * the Switcher PTE page for each CPU.
+ */
 __init int init_pagetables(struct page **switcher_page, unsigned int pages)
 {
         unsigned int i;
diff --git a/drivers/lguest/segments.c b/drivers/lguest/segments.c
index 482ed5a18750..951c57b0a7e0 100644
--- a/drivers/lguest/segments.c
+++ b/drivers/lguest/segments.c
@@ -1,4 +1,5 @@
-/*P:600 The x86 architecture has segments, which involve a table of descriptors
+/*P:600
+ * The x86 architecture has segments, which involve a table of descriptors
  * which can be used to do funky things with virtual address interpretation.
  * We originally used to use segments so the Guest couldn't alter the
  * Guest<->Host Switcher, and then we had to trim Guest segments, and restore
@@ -8,7 +9,8 @@
  *
  * In these modern times, the segment handling code consists of simple sanity
  * checks, and the worst you'll experience reading this code is butterfly-rash
- * from frolicking through its parklike serenity. :*/
+ * from frolicking through its parklike serenity.
+:*/
 #include "lg.h"
 
 /*H:600
@@ -41,10 +43,12 @@
  * begin.
  */
 
-/* There are several entries we don't let the Guest set.  The TSS entry is the
+/*
+ * There are several entries we don't let the Guest set.  The TSS entry is the
  * "Task State Segment" which controls all kinds of delicate things.  The
  * LGUEST_CS and LGUEST_DS entries are reserved for the Switcher, and the
- * the Guest can't be trusted to deal with double faults. */
+ * the Guest can't be trusted to deal with double faults.
+ */
 static bool ignored_gdt(unsigned int num)
 {
         return (num == GDT_ENTRY_TSS
@@ -53,42 +57,52 @@ static bool ignored_gdt(unsigned int num)
                 || num == GDT_ENTRY_DOUBLEFAULT_TSS);
 }
 
-/*H:630 Once the Guest gave us new GDT entries, we fix them up a little.  We
+/*H:630
+ * Once the Guest gave us new GDT entries, we fix them up a little.  We
  * don't care if they're invalid: the worst that can happen is a General
  * Protection Fault in the Switcher when it restores a Guest segment register
  * which tries to use that entry.  Then we kill the Guest for causing such a
- * mess: the message will be "unhandled trap 256". */
+ * mess: the message will be "unhandled trap 256".
+ */
 static void fixup_gdt_table(struct lg_cpu *cpu, unsigned start, unsigned end)
 {
         unsigned int i;
 
         for (i = start; i < end; i++) {
-                /* We never copy these ones to real GDT, so we don't care what
-                 * they say */
+                /*
+                 * We never copy these ones to real GDT, so we don't care what
+                 * they say
+                 */
                 if (ignored_gdt(i))
                         continue;
 
-                /* Segment descriptors contain a privilege level: the Guest is
+                /*
+                 * Segment descriptors contain a privilege level: the Guest is
                  * sometimes careless and leaves this as 0, even though it's
-                 * running at privilege level 1.  If so, we fix it here. */
+                 * running at privilege level 1.  If so, we fix it here.
+                 */
                 if ((cpu->arch.gdt[i].b & 0x00006000) == 0)
                         cpu->arch.gdt[i].b |= (GUEST_PL << 13);
 
-                /* Each descriptor has an "accessed" bit.  If we don't set it
+                /*
+                 * Each descriptor has an "accessed" bit.  If we don't set it
                  * now, the CPU will try to set it when the Guest first loads
                  * that entry into a segment register.  But the GDT isn't
-                 * writable by the Guest, so bad things can happen. */
+                 * writable by the Guest, so bad things can happen.
+                 */
                 cpu->arch.gdt[i].b |= 0x00000100;
         }
 }
 
-/*H:610 Like the IDT, we never simply use the GDT the Guest gives us.  We keep
+/*H:610
+ * Like the IDT, we never simply use the GDT the Guest gives us.  We keep
  * a GDT for each CPU, and copy across the Guest's entries each time we want to
  * run the Guest on that CPU.
  *
  * This routine is called at boot or modprobe time for each CPU to set up the
  * constant GDT entries: the ones which are the same no matter what Guest we're
- * running. */
+ * running.
+ */
 void setup_default_gdt_entries(struct lguest_ro_state *state)
 {
         struct desc_struct *gdt = state->guest_gdt;
@@ -98,30 +112,37 @@ void setup_default_gdt_entries(struct lguest_ro_state *state)
         gdt[GDT_ENTRY_LGUEST_CS] = FULL_EXEC_SEGMENT;
         gdt[GDT_ENTRY_LGUEST_DS] = FULL_SEGMENT;
 
-        /* The TSS segment refers to the TSS entry for this particular CPU.
+        /*
+         * The TSS segment refers to the TSS entry for this particular CPU.
          * Forgive the magic flags: the 0x8900 means the entry is Present, it's
          * privilege level 0 Available 386 TSS system segment, and the 0x67
-         * means Saturn is eclipsed by Mercury in the twelfth house. */
+         * means Saturn is eclipsed by Mercury in the twelfth house.
+         */
         gdt[GDT_ENTRY_TSS].a = 0x00000067 | (tss << 16);
         gdt[GDT_ENTRY_TSS].b = 0x00008900 | (tss & 0xFF000000)
                 | ((tss >> 16) & 0x000000FF);
 }
 
-/* This routine sets up the initial Guest GDT for booting.  All entries start
- * as 0 (unusable). */
+/*
+ * This routine sets up the initial Guest GDT for booting.  All entries start
+ * as 0 (unusable).
+ */
 void setup_guest_gdt(struct lg_cpu *cpu)
 {
-        /* Start with full 0-4G segments... */
+        /*
+         * Start with full 0-4G segments...except the Guest is allowed to use
+         * them, so set the privilege level appropriately in the flags.
+         */
         cpu->arch.gdt[GDT_ENTRY_KERNEL_CS] = FULL_EXEC_SEGMENT;
         cpu->arch.gdt[GDT_ENTRY_KERNEL_DS] = FULL_SEGMENT;
-        /* ...except the Guest is allowed to use them, so set the privilege
-         * level appropriately in the flags. */
         cpu->arch.gdt[GDT_ENTRY_KERNEL_CS].b |= (GUEST_PL << 13);
         cpu->arch.gdt[GDT_ENTRY_KERNEL_DS].b |= (GUEST_PL << 13);
 }
 
-/*H:650 An optimization of copy_gdt(), for just the three "thead-local storage"
- * entries. */
+/*H:650
+ * An optimization of copy_gdt(), for just the three "thead-local storage"
+ * entries.
+ */
 void copy_gdt_tls(const struct lg_cpu *cpu, struct desc_struct *gdt)
 {
         unsigned int i;
@@ -130,26 +151,34 @@ void copy_gdt_tls(const struct lg_cpu *cpu, struct desc_struct *gdt)
                 gdt[i] = cpu->arch.gdt[i];
 }
 
-/*H:640 When the Guest is run on a different CPU, or the GDT entries have
- * changed, copy_gdt() is called to copy the Guest's GDT entries across to this
- * CPU's GDT. */
+/*H:640
+ * When the Guest is run on a different CPU, or the GDT entries have changed,
+ * copy_gdt() is called to copy the Guest's GDT entries across to this CPU's
+ * GDT.
+ */
 void copy_gdt(const struct lg_cpu *cpu, struct desc_struct *gdt)
 {
         unsigned int i;
 
-        /* The default entries from setup_default_gdt_entries() are not
-         * replaced.  See ignored_gdt() above. */
+        /*
+         * The default entries from setup_default_gdt_entries() are not
+         * replaced.  See ignored_gdt() above.
+         */
         for (i = 0; i < GDT_ENTRIES; i++)
                 if (!ignored_gdt(i))
                         gdt[i] = cpu->arch.gdt[i];
 }
 
-/*H:620 This is where the Guest asks us to load a new GDT entry
- * (LHCALL_LOAD_GDT_ENTRY).  We tweak the entry and copy it in. */
+/*H:620
+ * This is where the Guest asks us to load a new GDT entry
+ * (LHCALL_LOAD_GDT_ENTRY).  We tweak the entry and copy it in.
+ */
 void load_guest_gdt_entry(struct lg_cpu *cpu, u32 num, u32 lo, u32 hi)
 {
-        /* We assume the Guest has the same number of GDT entries as the
-         * Host, otherwise we'd have to dynamically allocate the Guest GDT. */
+        /*
+         * We assume the Guest has the same number of GDT entries as the
+         * Host, otherwise we'd have to dynamically allocate the Guest GDT.
+         */
         if (num >= ARRAY_SIZE(cpu->arch.gdt))
                 kill_guest(cpu, "too many gdt entries %i", num);
 
@@ -157,15 +186,19 @@ void load_guest_gdt_entry(struct lg_cpu *cpu, u32 num, u32 lo, u32 hi)
         cpu->arch.gdt[num].a = lo;
         cpu->arch.gdt[num].b = hi;
         fixup_gdt_table(cpu, num, num+1);
-        /* Mark that the GDT changed so the core knows it has to copy it again,
-         * even if the Guest is run on the same CPU. */
+        /*
+         * Mark that the GDT changed so the core knows it has to copy it again,
+         * even if the Guest is run on the same CPU.
+         */
         cpu->changed |= CHANGED_GDT;
 }
 
-/* This is the fast-track version for just changing the three TLS entries.
+/*
+ * This is the fast-track version for just changing the three TLS entries.
  * Remember that this happens on every context switch, so it's worth
  * optimizing.  But wouldn't it be neater to have a single hypercall to cover
- * both cases? */
+ * both cases?
+ */
 void guest_load_tls(struct lg_cpu *cpu, unsigned long gtls)
 {
         struct desc_struct *tls = &cpu->arch.gdt[GDT_ENTRY_TLS_MIN];
@@ -175,7 +208,6 @@ void guest_load_tls(struct lg_cpu *cpu, unsigned long gtls)
         /* Note that just the TLS entries have changed. */
         cpu->changed |= CHANGED_GDT_TLS;
 }
-/*:*/
 
 /*H:660
  * With this, we have finished the Host.
diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c
index eaf722fe309a..6ae388849a3b 100644
--- a/drivers/lguest/x86/core.c
+++ b/drivers/lguest/x86/core.c
@@ -17,13 +17,15 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
-/*P:450 This file contains the x86-specific lguest code.  It used to be all
+/*P:450
+ * This file contains the x86-specific lguest code.  It used to be all
  * mixed in with drivers/lguest/core.c but several foolhardy code slashers
  * wrestled most of the dependencies out to here in preparation for porting
  * lguest to other architectures (see what I mean by foolhardy?).
  *
  * This also contains a couple of non-obvious setup and teardown pieces which
- * were implemented after days of debugging pain. :*/
+ * were implemented after days of debugging pain.
+:*/
 #include <linux/kernel.h>
 #include <linux/start_kernel.h>
 #include <linux/string.h>
@@ -82,25 +84,33 @@ static DEFINE_PER_CPU(struct lg_cpu *, last_cpu);
  */
 static void copy_in_guest_info(struct lg_cpu *cpu, struct lguest_pages *pages)
 {
-        /* Copying all this data can be quite expensive.  We usually run the
+        /*
+         * Copying all this data can be quite expensive.  We usually run the
          * same Guest we ran last time (and that Guest hasn't run anywhere else
          * meanwhile).  If that's not the case, we pretend everything in the
-         * Guest has changed. */
+         * Guest has changed.
+         */
         if (__get_cpu_var(last_cpu) != cpu || cpu->last_pages != pages) {
                 __get_cpu_var(last_cpu) = cpu;
                 cpu->last_pages = pages;
                 cpu->changed = CHANGED_ALL;
         }
 
-        /* These copies are pretty cheap, so we do them unconditionally: */
-        /* Save the current Host top-level page directory. */
+        /*
+         * These copies are pretty cheap, so we do them unconditionally: */
+        /* Save the current Host top-level page directory.
+         */
         pages->state.host_cr3 = __pa(current->mm->pgd);
-        /* Set up the Guest's page tables to see this CPU's pages (and no
-         * other CPU's pages). */
+        /*
+         * Set up the Guest's page tables to see this CPU's pages (and no
+         * other CPU's pages).
+         */
         map_switcher_in_guest(cpu, pages);
-        /* Set up the two "TSS" members which tell the CPU what stack to use
+        /*
+         * Set up the two "TSS" members which tell the CPU what stack to use
          * for traps which do directly into the Guest (ie. traps at privilege
-         * level 1). */
+         * level 1).
+         */
         pages->state.guest_tss.sp1 = cpu->esp1;
         pages->state.guest_tss.ss1 = cpu->ss1;
 
@@ -125,97 +135,126 @@ static void run_guest_once(struct lg_cpu *cpu, struct lguest_pages *pages)
         /* This is a dummy value we need for GCC's sake. */
         unsigned int clobber;
 
-        /* Copy the guest-specific information into this CPU's "struct
-         * lguest_pages". */
+        /*
+         * Copy the guest-specific information into this CPU's "struct
+         * lguest_pages".
+         */
         copy_in_guest_info(cpu, pages);
 
-        /* Set the trap number to 256 (impossible value).  If we fault while
+        /*
+         * Set the trap number to 256 (impossible value).  If we fault while
          * switching to the Guest (bad segment registers or bug), this will
-         * cause us to abort the Guest. */
+         * cause us to abort the Guest.
+         */
         cpu->regs->trapnum = 256;
 
-        /* Now: we push the "eflags" register on the stack, then do an "lcall".
+        /*
+         * Now: we push the "eflags" register on the stack, then do an "lcall".
          * This is how we change from using the kernel code segment to using
          * the dedicated lguest code segment, as well as jumping into the
          * Switcher.
          *
          * The lcall also pushes the old code segment (KERNEL_CS) onto the
          * stack, then the address of this call.  This stack layout happens to
-         * exactly match the stack layout created by an interrupt... */
+         * exactly match the stack layout created by an interrupt...
+         */
         asm volatile("pushf; lcall *lguest_entry"
-                     /* This is how we tell GCC that %eax ("a") and %ebx ("b")
-                      * are changed by this routine.  The "=" means output. */
+                     /*
+                      * This is how we tell GCC that %eax ("a") and %ebx ("b")
+                      * are changed by this routine.  The "=" means output.
+                      */
                      : "=a"(clobber), "=b"(clobber)
-                     /* %eax contains the pages pointer.  ("0" refers to the
+                     /*
+                      * %eax contains the pages pointer.  ("0" refers to the
                       * 0-th argument above, ie "a").  %ebx contains the
                       * physical address of the Guest's top-level page
-                      * directory. */
+                      * directory.
+                      */
                      : "0"(pages), "1"(__pa(cpu->lg->pgdirs[cpu->cpu_pgd].pgdir))
-                     /* We tell gcc that all these registers could change,
+                     /*
+                      * We tell gcc that all these registers could change,
                       * which means we don't have to save and restore them in
-                      * the Switcher. */
+                      * the Switcher.
+                      */
                      : "memory", "%edx", "%ecx", "%edi", "%esi");
 }
 /*:*/
 
-/*M:002 There are hooks in the scheduler which we can register to tell when we
+/*M:002
+ * There are hooks in the scheduler which we can register to tell when we
  * get kicked off the CPU (preempt_notifier_register()).  This would allow us
  * to lazily disable SYSENTER which would regain some performance, and should
  * also simplify copy_in_guest_info().  Note that we'd still need to restore
  * things when we exit to Launcher userspace, but that's fairly easy.
  *
- * We could also try using this hooks for PGE, but that might be too expensive.
+ * We could also try using these hooks for PGE, but that might be too expensive.
  *
- * The hooks were designed for KVM, but we can also put them to good use. :*/
+ * The hooks were designed for KVM, but we can also put them to good use.
+:*/
 
-/*H:040 This is the i386-specific code to setup and run the Guest.  Interrupts
- * are disabled: we own the CPU. */
+/*H:040
+ * This is the i386-specific code to setup and run the Guest.  Interrupts
+ * are disabled: we own the CPU.
+ */
 void lguest_arch_run_guest(struct lg_cpu *cpu)
 {
-        /* Remember the awfully-named TS bit?  If the Guest has asked to set it
+        /*
+         * Remember the awfully-named TS bit?  If the Guest has asked to set it
          * we set it now, so we can trap and pass that trap to the Guest if it
-         * uses the FPU. */
+         * uses the FPU.
+         */
         if (cpu->ts)
                 unlazy_fpu(current);
 
-        /* SYSENTER is an optimized way of doing system calls.  We can't allow
+        /*
+         * SYSENTER is an optimized way of doing system calls.  We can't allow
          * it because it always jumps to privilege level 0.  A normal Guest
          * won't try it because we don't advertise it in CPUID, but a malicious
          * Guest (or malicious Guest userspace program) could, so we tell the
-         * CPU to disable it before running the Guest. */
+         * CPU to disable it before running the Guest.
+         */
         if (boot_cpu_has(X86_FEATURE_SEP))
                 wrmsr(MSR_IA32_SYSENTER_CS, 0, 0);
 
-        /* Now we actually run the Guest.  It will return when something
+        /*
+         * Now we actually run the Guest.  It will return when something
          * interesting happens, and we can examine its registers to see what it
-         * was doing. */
+         * was doing.
+         */
         run_guest_once(cpu, lguest_pages(raw_smp_processor_id()));
 
-        /* Note that the "regs" structure contains two extra entries which are
+        /*
+         * Note that the "regs" structure contains two extra entries which are
          * not really registers: a trap number which says what interrupt or
          * trap made the switcher code come back, and an error code which some
-         * traps set.  */
+         * traps set.
+         */
 
          /* Restore SYSENTER if it's supposed to be on. */
          if (boot_cpu_has(X86_FEATURE_SEP))
                 wrmsr(MSR_IA32_SYSENTER_CS, __KERNEL_CS, 0);
 
-        /* If the Guest page faulted, then the cr2 register will tell us the
+        /*
+         * If the Guest page faulted, then the cr2 register will tell us the
          * bad virtual address.  We have to grab this now, because once we
          * re-enable interrupts an interrupt could fault and thus overwrite
-         * cr2, or we could even move off to a different CPU. */
+         * cr2, or we could even move off to a different CPU.
+         */
         if (cpu->regs->trapnum == 14)
                 cpu->arch.last_pagefault = read_cr2();
-        /* Similarly, if we took a trap because the Guest used the FPU,
+        /*
+         * Similarly, if we took a trap because the Guest used the FPU,
          * we have to restore the FPU it expects to see.
          * math_state_restore() may sleep and we may even move off to
          * a different CPU. So all the critical stuff should be done
-         * before this.  */
+         * before this.
+         */
         else if (cpu->regs->trapnum == 7)
                 math_state_restore();
 }
 
-/*H:130 Now we've examined the hypercall code; our Guest can make requests.
+/*H:130
+ * Now we've examined the hypercall code; our Guest can make requests.
  * Our Guest is usually so well behaved; it never tries to do things it isn't
  * allowed to, and uses hypercalls instead.  Unfortunately, Linux's paravirtual
  * infrastructure isn't quite complete, because it doesn't contain replacements
@@ -225,26 +264,33 @@ void lguest_arch_run_guest(struct lg_cpu *cpu)
  *
  * When the Guest uses one of these instructions, we get a trap (General
  * Protection Fault) and come here.  We see if it's one of those troublesome
- * instructions and skip over it.  We return true if we did. */
+ * instructions and skip over it.  We return true if we did.
+ */
 static int emulate_insn(struct lg_cpu *cpu)
 {
         u8 insn;
         unsigned int insnlen = 0, in = 0, shift = 0;
-        /* The eip contains the *virtual* address of the Guest's instruction:
-         * guest_pa just subtracts the Guest's page_offset. */
+        /*
+         * The eip contains the *virtual* address of the Guest's instruction:
+         * guest_pa just subtracts the Guest's page_offset.
+         */
         unsigned long physaddr = guest_pa(cpu, cpu->regs->eip);
 
-        /* This must be the Guest kernel trying to do something, not userspace!
+        /*
+         * This must be the Guest kernel trying to do something, not userspace!
          * The bottom two bits of the CS segment register are the privilege
-         * level. */
+         * level.
+         */
         if ((cpu->regs->cs & 3) != GUEST_PL)
                 return 0;
 
         /* Decoding x86 instructions is icky. */
         insn = lgread(cpu, physaddr, u8);
 
-        /* 0x66 is an "operand prefix".  It means it's using the upper 16 bits
-           of the eax register. */
+        /*
+         * 0x66 is an "operand prefix".  It means it's using the upper 16 bits
+         * of the eax register.
+         */
         if (insn == 0x66) {
                 shift = 16;
                 /* The instruction is 1 byte so far, read the next byte. */
@@ -252,8 +298,10 @@ static int emulate_insn(struct lg_cpu *cpu)
                 insn = lgread(cpu, physaddr + insnlen, u8);
         }
 
-        /* We can ignore the lower bit for the moment and decode the 4 opcodes
-         * we need to emulate. */
+        /*
+         * We can ignore the lower bit for the moment and decode the 4 opcodes
+         * we need to emulate.
+         */
         switch (insn & 0xFE) {
         case 0xE4: /* in     <next byte>,%al */
                 insnlen += 2;
@@ -274,9 +322,11 @@ static int emulate_insn(struct lg_cpu *cpu)
                 return 0;
         }
 
-        /* If it was an "IN" instruction, they expect the result to be read
+        /*
+         * If it was an "IN" instruction, they expect the result to be read
          * into %eax, so we change %eax.  We always return all-ones, which
-         * traditionally means "there's nothing there". */
+         * traditionally means "there's nothing there".
+         */
         if (in) {
                 /* Lower bit tells is whether it's a 16 or 32 bit access */
                 if (insn & 0x1)
@@ -290,7 +340,8 @@ static int emulate_insn(struct lg_cpu *cpu)
         return 1;
 }
 
-/* Our hypercalls mechanism used to be based on direct software interrupts.
+/*
+ * Our hypercalls mechanism used to be based on direct software interrupts.
  * After Anthony's "Refactor hypercall infrastructure" kvm patch, we decided to
  * change over to using kvm hypercalls.
  *
@@ -318,16 +369,20 @@ static int emulate_insn(struct lg_cpu *cpu)
  */
 static void rewrite_hypercall(struct lg_cpu *cpu)
 {
-        /* This are the opcodes we use to patch the Guest.  The opcode for "int
+        /*
+         * This are the opcodes we use to patch the Guest.  The opcode for "int
          * $0x1f" is "0xcd 0x1f" but vmcall instruction is 3 bytes long, so we
-         * complete the sequence with a NOP (0x90). */
+         * complete the sequence with a NOP (0x90).
+         */
         u8 insn[3] = {0xcd, 0x1f, 0x90};
 
         __lgwrite(cpu, guest_pa(cpu, cpu->regs->eip), insn, sizeof(insn));
-        /* The above write might have caused a copy of that page to be made
+        /*
+         * The above write might have caused a copy of that page to be made
          * (if it was read-only).  We need to make sure the Guest has
          * up-to-date pagetables.  As this doesn't happen often, we can just
-         * drop them all. */
+         * drop them all.
+         */
         guest_pagetable_clear_all(cpu);
 }
 
@@ -335,9 +390,11 @@ static bool is_hypercall(struct lg_cpu *cpu)
 {
         u8 insn[3];
 
-        /* This must be the Guest kernel trying to do something.
+        /*
+         * This must be the Guest kernel trying to do something.
          * The bottom two bits of the CS segment register are the privilege
-         * level. */
+         * level.
+         */
         if ((cpu->regs->cs & 3) != GUEST_PL)
                 return false;
 
@@ -351,86 +408,105 @@ void lguest_arch_handle_trap(struct lg_cpu *cpu)
 {
         switch (cpu->regs->trapnum) {
         case 13: /* We've intercepted a General Protection Fault. */
-                /* Check if this was one of those annoying IN or OUT
+                /*
+                 * Check if this was one of those annoying IN or OUT
                  * instructions which we need to emulate.  If so, we just go
-                 * back into the Guest after we've done it. */
+                 * back into the Guest after we've done it.
+                 */
                 if (cpu->regs->errcode == 0) {
                         if (emulate_insn(cpu))
                                 return;
                 }
-                /* If KVM is active, the vmcall instruction triggers a
-                 * General Protection Fault.  Normally it triggers an
-                 * invalid opcode fault (6): */
+                /*
+                 * If KVM is active, the vmcall instruction triggers a General
+                 * Protection Fault.  Normally it triggers an invalid opcode
+                 * fault (6):
+                 */
         case 6:
-                /* We need to check if ring == GUEST_PL and
-                 * faulting instruction == vmcall. */
+                /*
+                 * We need to check if ring == GUEST_PL and faulting
+                 * instruction == vmcall.
+                 */
                 if (is_hypercall(cpu)) {
                         rewrite_hypercall(cpu);
                         return;
                 }
                 break;
         case 14: /* We've intercepted a Page Fault. */
-                /* The Guest accessed a virtual address that wasn't mapped.
+                /*
+                 * The Guest accessed a virtual address that wasn't mapped.
                  * This happens a lot: we don't actually set up most of the page
                  * tables for the Guest at all when we start: as it runs it asks
                  * for more and more, and we set them up as required. In this
                  * case, we don't even tell the Guest that the fault happened.
                  *
                  * The errcode tells whether this was a read or a write, and
-                 * whether kernel or userspace code. */
+                 * whether kernel or userspace code.
+                 */
                 if (demand_page(cpu, cpu->arch.last_pagefault,
                                 cpu->regs->errcode))
                         return;
 
-                /* OK, it's really not there (or not OK): the Guest needs to
+                /*
+                 * OK, it's really not there (or not OK): the Guest needs to
                  * know.  We write out the cr2 value so it knows where the
                  * fault occurred.
                  *
                  * Note that if the Guest were really messed up, this could
                  * happen before it's done the LHCALL_LGUEST_INIT hypercall, so
-                 * lg->lguest_data could be NULL */
+                 * lg->lguest_data could be NULL
+                 */
                 if (cpu->lg->lguest_data &&
                     put_user(cpu->arch.last_pagefault,
                              &cpu->lg->lguest_data->cr2))
                         kill_guest(cpu, "Writing cr2");
                 break;
         case 7: /* We've intercepted a Device Not Available fault. */
-                /* If the Guest doesn't want to know, we already restored the
-                 * Floating Point Unit, so we just continue without telling
-                 * it. */
+                /*
+                 * If the Guest doesn't want to know, we already restored the
+                 * Floating Point Unit, so we just continue without telling it.
+                 */
                 if (!cpu->ts)
                         return;
                 break;
         case 32 ... 255:
-                /* These values mean a real interrupt occurred, in which case
+                /*
+                 * These values mean a real interrupt occurred, in which case
                  * the Host handler has already been run. We just do a
                  * friendly check if another process should now be run, then
-                 * return to run the Guest again */
+                 * return to run the Guest again
+                 */
                 cond_resched();
                 return;
         case LGUEST_TRAP_ENTRY:
-                /* Our 'struct hcall_args' maps directly over our regs: we set
-                 * up the pointer now to indicate a hypercall is pending. */
+                /*
+                 * Our 'struct hcall_args' maps directly over our regs: we set
+                 * up the pointer now to indicate a hypercall is pending.
+                 */
                 cpu->hcall = (struct hcall_args *)cpu->regs;
                 return;
         }
 
         /* We didn't handle the trap, so it needs to go to the Guest. */
         if (!deliver_trap(cpu, cpu->regs->trapnum))
-                /* If the Guest doesn't have a handler (either it hasn't
+                /*
+                 * If the Guest doesn't have a handler (either it hasn't
                  * registered any yet, or it's one of the faults we don't let
-                 * it handle), it dies with this cryptic error message. */
+                 * it handle), it dies with this cryptic error message.
+                 */
                 kill_guest(cpu, "unhandled trap %li at %#lx (%#lx)",
                            cpu->regs->trapnum, cpu->regs->eip,
                            cpu->regs->trapnum == 14 ? cpu->arch.last_pagefault
                            : cpu->regs->errcode);
 }
 
-/* Now we can look at each of the routines this calls, in increasing order of
+/*
+ * Now we can look at each of the routines this calls, in increasing order of
  * complexity: do_hypercalls(), emulate_insn(), maybe_do_interrupt(),
  * deliver_trap() and demand_page().  After all those, we'll be ready to
  * examine the Switcher, and our philosophical understanding of the Host/Guest
- * duality will be complete. :*/
+ * duality will be complete.
+:*/
 static void adjust_pge(void *on)
 {
         if (on)
@@ -439,13 +515,16 @@ static void adjust_pge(void *on)
                 write_cr4(read_cr4() & ~X86_CR4_PGE);
 }
 
-/*H:020 Now the Switcher is mapped and every thing else is ready, we need to do
- * some more i386-specific initialization. */
+/*H:020
+ * Now the Switcher is mapped and every thing else is ready, we need to do
+ * some more i386-specific initialization.
+ */
 void __init lguest_arch_host_init(void)
 {
         int i;
 
-        /* Most of the i386/switcher.S doesn't care that it's been moved; on
+        /*
+         * Most of the i386/switcher.S doesn't care that it's been moved; on
          * Intel, jumps are relative, and it doesn't access any references to
          * external code or data.
          *
@@ -453,7 +532,8 @@ void __init lguest_arch_host_init(void)
          * addresses are placed in a table (default_idt_entries), so we need to
          * update the table with the new addresses.  switcher_offset() is a
          * convenience function which returns the distance between the
-         * compiled-in switcher code and the high-mapped copy we just made. */
+         * compiled-in switcher code and the high-mapped copy we just made.
+         */
         for (i = 0; i < IDT_ENTRIES; i++)
                 default_idt_entries[i] += switcher_offset();
 
@@ -468,63 +548,81 @@ void __init lguest_arch_host_init(void)
         for_each_possible_cpu(i) {
                 /* lguest_pages() returns this CPU's two pages. */
                 struct lguest_pages *pages = lguest_pages(i);
-                /* This is a convenience pointer to make the code fit one
-                 * statement to a line. */
+                /* This is a convenience pointer to make the code neater. */
                 struct lguest_ro_state *state = &pages->state;
 
-                /* The Global Descriptor Table: the Host has a different one
+                /*
+                 * The Global Descriptor Table: the Host has a different one
                  * for each CPU.  We keep a descriptor for the GDT which says
                  * where it is and how big it is (the size is actually the last
-                 * byte, not the size, hence the "-1"). */
+                 * byte, not the size, hence the "-1").
+                 */
                 state->host_gdt_desc.size = GDT_SIZE-1;
                 state->host_gdt_desc.address = (long)get_cpu_gdt_table(i);
 
-                /* All CPUs on the Host use the same Interrupt Descriptor
+                /*
+                 * All CPUs on the Host use the same Interrupt Descriptor
                  * Table, so we just use store_idt(), which gets this CPU's IDT
-                 * descriptor. */
+                 * descriptor.
+                 */
                 store_idt(&state->host_idt_desc);
 
-                /* The descriptors for the Guest's GDT and IDT can be filled
+                /*
+                 * The descriptors for the Guest's GDT and IDT can be filled
                  * out now, too.  We copy the GDT & IDT into ->guest_gdt and
-                 * ->guest_idt before actually running the Guest. */
+                 * ->guest_idt before actually running the Guest.
+                 */
                 state->guest_idt_desc.size = sizeof(state->guest_idt)-1;
                 state->guest_idt_desc.address = (long)&state->guest_idt;
                 state->guest_gdt_desc.size = sizeof(state->guest_gdt)-1;
                 state->guest_gdt_desc.address = (long)&state->guest_gdt;
 
-                /* We know where we want the stack to be when the Guest enters
+                /*
+                 * We know where we want the stack to be when the Guest enters
                  * the Switcher: in pages->regs.  The stack grows upwards, so
-                 * we start it at the end of that structure. */
+                 * we start it at the end of that structure.
+                 */
                 state->guest_tss.sp0 = (long)(&pages->regs + 1);
-                /* And this is the GDT entry to use for the stack: we keep a
-                 * couple of special LGUEST entries. */
+                /*
+                 * And this is the GDT entry to use for the stack: we keep a
+                 * couple of special LGUEST entries.
+                 */
                 state->guest_tss.ss0 = LGUEST_DS;
 
-                /* x86 can have a finegrained bitmap which indicates what I/O
+                /*
+                 * x86 can have a finegrained bitmap which indicates what I/O
                  * ports the process can use.  We set it to the end of our
-                 * structure, meaning "none". */
+                 * structure, meaning "none".
+                 */
                 state->guest_tss.io_bitmap_base = sizeof(state->guest_tss);
 
-                /* Some GDT entries are the same across all Guests, so we can
-                 * set them up now. */
+                /*
+                 * Some GDT entries are the same across all Guests, so we can
+                 * set them up now.
+                 */
                 setup_default_gdt_entries(state);
                 /* Most IDT entries are the same for all Guests, too.*/
                 setup_default_idt_entries(state, default_idt_entries);
 
-                /* The Host needs to be able to use the LGUEST segments on this
-                 * CPU, too, so put them in the Host GDT. */
+                /*
+                 * The Host needs to be able to use the LGUEST segments on this
+                 * CPU, too, so put them in the Host GDT.
+                 */
                 get_cpu_gdt_table(i)[GDT_ENTRY_LGUEST_CS] = FULL_EXEC_SEGMENT;
                 get_cpu_gdt_table(i)[GDT_ENTRY_LGUEST_DS] = FULL_SEGMENT;
         }
 
-        /* In the Switcher, we want the %cs segment register to use the
+        /*
+         * In the Switcher, we want the %cs segment register to use the
          * LGUEST_CS GDT entry: we've put that in the Host and Guest GDTs, so
          * it will be undisturbed when we switch.  To change %cs and jump we
-         * need this structure to feed to Intel's "lcall" instruction. */
+         * need this structure to feed to Intel's "lcall" instruction.
+         */
         lguest_entry.offset = (long)switch_to_guest + switcher_offset();
         lguest_entry.segment = LGUEST_CS;
 
-        /* Finally, we need to turn off "Page Global Enable".  PGE is an
+        /*
+         * Finally, we need to turn off "Page Global Enable".  PGE is an
          * optimization where page table entries are specially marked to show
          * they never change.  The Host kernel marks all the kernel pages this
          * way because it's always present, even when userspace is running.
@@ -534,16 +632,21 @@ void __init lguest_arch_host_init(void)
          * you'll get really weird bugs that you'll chase for two days.
          *
          * I used to turn PGE off every time we switched to the Guest and back
-         * on when we return, but that slowed the Switcher down noticibly. */
+         * on when we return, but that slowed the Switcher down noticibly.
+         */
 
-        /* We don't need the complexity of CPUs coming and going while we're
-         * doing this. */
+        /*
+         * We don't need the complexity of CPUs coming and going while we're
+         * doing this.
+         */
         get_online_cpus();
         if (cpu_has_pge) { /* We have a broader idea of "global". */
                 /* Remember that this was originally set (for cleanup). */
                 cpu_had_pge = 1;
-                /* adjust_pge is a helper function which sets or unsets the PGE
-                 * bit on its CPU, depending on the argument (0 == unset). */
+                /*
+                 * adjust_pge is a helper function which sets or unsets the PGE
+                 * bit on its CPU, depending on the argument (0 == unset).
+                 */
                 on_each_cpu(adjust_pge, (void *)0, 1);
                 /* Turn off the feature in the global feature set. */
                 clear_cpu_cap(&boot_cpu_data, X86_FEATURE_PGE);
@@ -590,26 +693,32 @@ int lguest_arch_init_hypercalls(struct lg_cpu *cpu)
 {
         u32 tsc_speed;
 
-        /* The pointer to the Guest's "struct lguest_data" is the only argument.
-         * We check that address now. */
+        /*
+         * The pointer to the Guest's "struct lguest_data" is the only argument.
+         * We check that address now.
+         */
         if (!lguest_address_ok(cpu->lg, cpu->hcall->arg1,
                                sizeof(*cpu->lg->lguest_data)))
                 return -EFAULT;
 
-        /* Having checked it, we simply set lg->lguest_data to point straight
+        /*
+         * Having checked it, we simply set lg->lguest_data to point straight
          * into the Launcher's memory at the right place and then use
          * copy_to_user/from_user from now on, instead of lgread/write.  I put
          * this in to show that I'm not immune to writing stupid
-         * optimizations. */
+         * optimizations.
+         */
         cpu->lg->lguest_data = cpu->lg->mem_base + cpu->hcall->arg1;
 
-        /* We insist that the Time Stamp Counter exist and doesn't change with
+        /*
+         * We insist that the Time Stamp Counter exist and doesn't change with
          * cpu frequency.  Some devious chip manufacturers decided that TSC
          * changes could be handled in software.  I decided that time going
          * backwards might be good for benchmarks, but it's bad for users.
          *
          * We also insist that the TSC be stable: the kernel detects unreliable
-         * TSCs for its own purposes, and we use that here. */
+         * TSCs for its own purposes, and we use that here.
+         */
         if (boot_cpu_has(X86_FEATURE_CONSTANT_TSC) && !check_tsc_unstable())
                 tsc_speed = tsc_khz;
         else
@@ -625,38 +734,47 @@ int lguest_arch_init_hypercalls(struct lg_cpu *cpu)
 }
 /*:*/
 
-/*L:030 lguest_arch_setup_regs()
+/*L:030
+ * lguest_arch_setup_regs()
  *
  * Most of the Guest's registers are left alone: we used get_zeroed_page() to
- * allocate the structure, so they will be 0. */
+ * allocate the structure, so they will be 0.
+ */
 void lguest_arch_setup_regs(struct lg_cpu *cpu, unsigned long start)
 {
         struct lguest_regs *regs = cpu->regs;
 
-        /* There are four "segment" registers which the Guest needs to boot:
+        /*
+         * There are four "segment" registers which the Guest needs to boot:
          * The "code segment" register (cs) refers to the kernel code segment
          * __KERNEL_CS, and the "data", "extra" and "stack" segment registers
          * refer to the kernel data segment __KERNEL_DS.
          *
          * The privilege level is packed into the lower bits.  The Guest runs
-         * at privilege level 1 (GUEST_PL).*/
+         * at privilege level 1 (GUEST_PL).
+         */
         regs->ds = regs->es = regs->ss = __KERNEL_DS|GUEST_PL;
         regs->cs = __KERNEL_CS|GUEST_PL;
 
-        /* The "eflags" register contains miscellaneous flags.  Bit 1 (0x002)
+        /*
+         * The "eflags" register contains miscellaneous flags.  Bit 1 (0x002)
          * is supposed to always be "1".  Bit 9 (0x200) controls whether
          * interrupts are enabled.  We always leave interrupts enabled while
-         * running the Guest. */
+         * running the Guest.
+         */
         regs->eflags = X86_EFLAGS_IF | 0x2;
 
-        /* The "Extended Instruction Pointer" register says where the Guest is
-         * running. */
+        /*
+         * The "Extended Instruction Pointer" register says where the Guest is
+         * running.
+         */
         regs->eip = start;
 
-        /* %esi points to our boot information, at physical address 0, so don't
-         * touch it. */
+        /*
+         * %esi points to our boot information, at physical address 0, so don't
+         * touch it.
+         */
 
-        /* There are a couple of GDT entries the Guest expects when first
-         * booting. */
+        /* There are a couple of GDT entries the Guest expects at boot. */
         setup_guest_gdt(cpu);
 }
diff --git a/drivers/lguest/x86/switcher_32.S b/drivers/lguest/x86/switcher_32.S
index 3fc15318a80f..40634b0db9f7 100644
--- a/drivers/lguest/x86/switcher_32.S
+++ b/drivers/lguest/x86/switcher_32.S
@@ -1,12 +1,15 @@
-/*P:900 This is the Switcher: code which sits at 0xFFC00000 astride both the
- * Host and Guest to do the low-level Guest<->Host switch.  It is as simple as
- * it can be made, but it's naturally very specific to x86.
+/*P:900
+ * This is the Switcher: code which sits at 0xFFC00000 (or 0xFFE00000) astride
+ * both the Host and Guest to do the low-level Guest<->Host switch.  It is as
+ * simple as it can be made, but it's naturally very specific to x86.
  *
  * You have now completed Preparation.  If this has whet your appetite; if you
  * are feeling invigorated and refreshed then the next, more challenging stage
- * can be found in "make Guest". :*/
+ * can be found in "make Guest".
+ :*/
 
-/*M:012 Lguest is meant to be simple: my rule of thumb is that 1% more LOC must
+/*M:012
+ * Lguest is meant to be simple: my rule of thumb is that 1% more LOC must
  * gain at least 1% more performance.  Since neither LOC nor performance can be
  * measured beforehand, it generally means implementing a feature then deciding
  * if it's worth it.  And once it's implemented, who can say no?
@@ -31,11 +34,14 @@
  * Host (which is actually really easy).
  *
  * Two questions remain.  Would the performance gain outweigh the complexity?
- * And who would write the verse documenting it? :*/
+ * And who would write the verse documenting it?
+:*/
 
-/*M:011 Lguest64 handles NMI.  This gave me NMI envy (until I looked at their
+/*M:011
+ * Lguest64 handles NMI.  This gave me NMI envy (until I looked at their
  * code).  It's worth doing though, since it would let us use oprofile in the
- * Host when a Guest is running. :*/
+ * Host when a Guest is running.
+:*/
 
 /*S:100
  * Welcome to the Switcher itself!
diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c
index 6e149f4a1fff..a0f68386c12f 100644
--- a/drivers/macintosh/macio_asic.c
+++ b/drivers/macintosh/macio_asic.c
@@ -378,6 +378,17 @@ static struct macio_dev * macio_add_one_device(struct macio_chip *chip,
         dev->ofdev.dev.bus = &macio_bus_type;
         dev->ofdev.dev.release = macio_release_dev;
 
+#ifdef CONFIG_PCI
+        /* Set the DMA ops to the ones from the PCI device, this could be
+         * fishy if we didn't know that on PowerMac it's always direct ops
+         * or iommu ops that will work fine
+         */
+        dev->ofdev.dev.archdata.dma_ops =
+                chip->lbus.pdev->dev.archdata.dma_ops;
+        dev->ofdev.dev.archdata.dma_data =
+                chip->lbus.pdev->dev.archdata.dma_data;
+#endif /* CONFIG_PCI */
+
 #ifdef DEBUG
         printk("preparing mdev @%p, ofdev @%p, dev @%p, kobj @%p\n",
                dev, &dev->ofdev, &dev->ofdev.dev, &dev->ofdev.dev.kobj);
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 9933eb861c71..ed1038164019 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -776,7 +776,7 @@ static void kcryptd_crypt_write_convert(struct dm_crypt_io *io)
                  * But don't wait if split was due to the io size restriction
                  */
                 if (unlikely(out_of_pages))
-                        congestion_wait(WRITE, HZ/100);
+                        congestion_wait(BLK_RW_ASYNC, HZ/100);
 
                 /*
                  * With async crypto it is unsafe to share the crypto context
@@ -1318,7 +1318,7 @@ static int crypt_iterate_devices(struct dm_target *ti,
 {
         struct crypt_config *cc = ti->private;
 
-        return fn(ti, cc->dev, cc->start, data);
+        return fn(ti, cc->dev, cc->start, ti->len, data);
 }
 
 static struct target_type crypt_target = {
diff --git a/drivers/md/dm-delay.c b/drivers/md/dm-delay.c
index 4e5b843cd4d7..ebe7381f47c8 100644
--- a/drivers/md/dm-delay.c
+++ b/drivers/md/dm-delay.c
@@ -324,12 +324,12 @@ static int delay_iterate_devices(struct dm_target *ti,
         struct delay_c *dc = ti->private;
         int ret = 0;
 
-        ret = fn(ti, dc->dev_read, dc->start_read, data);
+        ret = fn(ti, dc->dev_read, dc->start_read, ti->len, data);
         if (ret)
                 goto out;
 
         if (dc->dev_write)
-                ret = fn(ti, dc->dev_write, dc->start_write, data);
+                ret = fn(ti, dc->dev_write, dc->start_write, ti->len, data);
 
 out:
         return ret;
diff --git a/drivers/md/dm-exception-store.c b/drivers/md/dm-exception-store.c
index c3ae51584b12..3710ff88fc10 100644
--- a/drivers/md/dm-exception-store.c
+++ b/drivers/md/dm-exception-store.c
@@ -195,7 +195,7 @@ int dm_exception_store_create(struct dm_target *ti, int argc, char **argv,
                               struct dm_exception_store **store)
 {
         int r = 0;
-        struct dm_exception_store_type *type;
+        struct dm_exception_store_type *type = NULL;
         struct dm_exception_store *tmp_store;
         char persistent;
 
@@ -211,12 +211,15 @@ int dm_exception_store_create(struct dm_target *ti, int argc, char **argv,
         }
 
         persistent = toupper(*argv[1]);
-        if (persistent != 'P' && persistent != 'N') {
+        if (persistent == 'P')
+                type = get_type("P");
+        else if (persistent == 'N')
+                type = get_type("N");
+        else {
                 ti->error = "Persistent flag is not P or N";
                 return -EINVAL;
         }
 
-        type = get_type(&persistent);
         if (!type) {
                 ti->error = "Exception store type not recognised";
                 r = -EINVAL;
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index 9184b6deb868..82f7d6e6b1ea 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -139,7 +139,7 @@ static int linear_iterate_devices(struct dm_target *ti,
 {
         struct linear_c *lc = ti->private;
 
-        return fn(ti, lc->dev, lc->start, data);
+        return fn(ti, lc->dev, lc->start, ti->len, data);
 }
 
 static struct target_type linear_target = {
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index c70604a20897..6f0d90d4a541 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -1453,7 +1453,7 @@ static int multipath_iterate_devices(struct dm_target *ti,
 
         list_for_each_entry(pg, &m->priority_groups, list) {
                 list_for_each_entry(p, &pg->pgpaths, list) {
-                        ret = fn(ti, p->path.dev, ti->begin, data);
+                        ret = fn(ti, p->path.dev, ti->begin, ti->len, data);
                         if (ret)
                                 goto out;
                 }
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index ce8868c768cc..9726577cde49 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -638,6 +638,7 @@ static void do_writes(struct mirror_set *ms, struct bio_list *writes)
                 spin_lock_irq(&ms->lock);
                 bio_list_merge(&ms->writes, &requeue);
                 spin_unlock_irq(&ms->lock);
+                delayed_wake(ms);
         }
 
         /*
@@ -1292,7 +1293,7 @@ static int mirror_iterate_devices(struct dm_target *ti,
 
         for (i = 0; !ret && i < ms->nr_mirrors; i++)
                 ret = fn(ti, ms->mirror[i].dev,
-                         ms->mirror[i].offset, data);
+                         ms->mirror[i].offset, ti->len, data);
 
         return ret;
 }
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index b240e85ae39a..4e0e5937e42a 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -320,10 +320,11 @@ static int stripe_iterate_devices(struct dm_target *ti,
         int ret = 0;
         unsigned i = 0;
 
-        do
+        do {
                 ret = fn(ti, sc->stripe[i].dev,
-                         sc->stripe[i].physical_start, data);
-        while (!ret && ++i < sc->stripes);
+                         sc->stripe[i].physical_start,
+                         sc->stripe_width, data);
+        } while (!ret && ++i < sc->stripes);
 
         return ret;
 }
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 4899ebe767c8..d952b3441913 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -346,7 +346,7 @@ static void close_dev(struct dm_dev_internal *d, struct mapped_device *md)
  * If possible, this checks an area of a destination device is valid.
  */
 static int device_area_is_valid(struct dm_target *ti, struct dm_dev *dev,
-                                sector_t start, void *data)
+                                sector_t start, sector_t len, void *data)
 {
         struct queue_limits *limits = data;
         struct block_device *bdev = dev->bdev;
@@ -359,7 +359,7 @@ static int device_area_is_valid(struct dm_target *ti, struct dm_dev *dev,
         if (!dev_size)
                 return 1;
 
-        if ((start >= dev_size) || (start + ti->len > dev_size)) {
+        if ((start >= dev_size) || (start + len > dev_size)) {
                 DMWARN("%s: %s too small for target",
                        dm_device_name(ti->table->md), bdevname(bdev, b));
                 return 0;
@@ -377,11 +377,11 @@ static int device_area_is_valid(struct dm_target *ti, struct dm_dev *dev,
                 return 0;
         }
 
-        if (ti->len & (logical_block_size_sectors - 1)) {
+        if (len & (logical_block_size_sectors - 1)) {
                 DMWARN("%s: len=%llu not aligned to h/w "
                        "logical block size %hu of %s",
                        dm_device_name(ti->table->md),
-                       (unsigned long long)ti->len,
+                       (unsigned long long)len,
                        limits->logical_block_size, bdevname(bdev, b));
                 return 0;
         }
@@ -482,7 +482,7 @@ static int __table_get_device(struct dm_table *t, struct dm_target *ti,
 #define min_not_zero(l, r) (l == 0) ? r : ((r == 0) ? l : min(l, r))
 
 int dm_set_device_limits(struct dm_target *ti, struct dm_dev *dev,
-                         sector_t start, void *data)
+                         sector_t start, sector_t len, void *data)
 {
         struct queue_limits *limits = data;
         struct block_device *bdev = dev->bdev;
@@ -495,7 +495,7 @@ int dm_set_device_limits(struct dm_target *ti, struct dm_dev *dev,
                 return 0;
         }
 
-        if (blk_stack_limits(limits, &q->limits, start) < 0)
+        if (blk_stack_limits(limits, &q->limits, start << 9) < 0)
                 DMWARN("%s: target device %s is misaligned",
                        dm_device_name(ti->table->md), bdevname(bdev, b));
 
@@ -830,11 +830,6 @@ unsigned dm_table_get_type(struct dm_table *t)
         return t->type;
 }
 
-bool dm_table_bio_based(struct dm_table *t)
-{
-        return dm_table_get_type(t) == DM_TYPE_BIO_BASED;
-}
-
 bool dm_table_request_based(struct dm_table *t)
 {
         return dm_table_get_type(t) == DM_TYPE_REQUEST_BASED;
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 3c6d4ee8921d..8a311ea0d441 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1017,7 +1017,7 @@ static struct bio *split_bvec(struct bio *bio, sector_t sector,
         clone->bi_flags |= 1 << BIO_CLONED;
 
         if (bio_integrity(bio)) {
-                bio_integrity_clone(clone, bio, GFP_NOIO);
+                bio_integrity_clone(clone, bio, GFP_NOIO, bs);
                 bio_integrity_trim(clone,
                                    bio_sector_offset(bio, idx, offset), len);
         }
@@ -1045,7 +1045,7 @@ static struct bio *clone_bio(struct bio *bio, sector_t sector,
         clone->bi_flags &= ~(1 << BIO_SEG_VALID);
 
         if (bio_integrity(bio)) {
-                bio_integrity_clone(clone, bio, GFP_NOIO);
+                bio_integrity_clone(clone, bio, GFP_NOIO, bs);
 
                 if (idx != bio->bi_idx || clone->bi_size < bio->bi_size)
                         bio_integrity_trim(clone,
@@ -2203,16 +2203,6 @@ int dm_swap_table(struct mapped_device *md, struct dm_table *table)
                 goto out;
         }
 
-        /*
-         * It is enought that blk_queue_ordered() is called only once when
-         * the first bio-based table is bound.
-         *
-         * This setting should be moved to alloc_dev() when request-based dm
-         * supports barrier.
-         */
-        if (!md->map && dm_table_bio_based(table))
-                blk_queue_ordered(md->queue, QUEUE_ORDERED_DRAIN, NULL);
-
         __unbind(md);
         r = __bind(md, table, &limits);
 
diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index 23278ae80f08..a7663eba17e2 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -61,7 +61,6 @@ int dm_table_any_congested(struct dm_table *t, int bdi_bits);
 int dm_table_any_busy_target(struct dm_table *t);
 int dm_table_set_type(struct dm_table *t);
 unsigned dm_table_get_type(struct dm_table *t);
-bool dm_table_bio_based(struct dm_table *t);
 bool dm_table_request_based(struct dm_table *t);
 int dm_table_alloc_md_mempools(struct dm_table *t);
 void dm_table_free_md_mempools(struct dm_table *t);
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index 15c8b7b25a9b..5fe39c2a3d2b 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -166,8 +166,8 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks)
                         rdev->sectors = sectors * mddev->chunk_sectors;
                 }
 
-                blk_queue_stack_limits(mddev->queue,
-                                       rdev->bdev->bd_disk->queue);
+                disk_stack_limits(mddev->gendisk, rdev->bdev,
+                                  rdev->data_offset << 9);
                 /* as we don't honour merge_bvec_fn, we must never risk
                  * violating it, so limit ->max_sector to one PAGE, as
                  * a one page request is never in violation.
@@ -220,6 +220,7 @@ static int linear_run (mddev_t *mddev)
         mddev->queue->unplug_fn = linear_unplug;
         mddev->queue->backing_dev_info.congested_fn = linear_congested;
         mddev->queue->backing_dev_info.congested_data = mddev;
+        md_integrity_register(mddev);
         return 0;
 }
 
@@ -256,6 +257,7 @@ static int linear_add(mddev_t *mddev, mdk_rdev_t *rdev)
         rcu_assign_pointer(mddev->private, newconf);
         md_set_array_sectors(mddev, linear_size(mddev, 0, 0));
         set_capacity(mddev->gendisk, mddev->array_sectors);
+        revalidate_disk(mddev->gendisk);
         call_rcu(&oldconf->rcu, free_conf);
         return 0;
 }
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 09be637d52cb..9dd872000cec 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -359,6 +359,7 @@ static mddev_t * mddev_find(dev_t unit)
         else
                 new->md_minor = MINOR(unit) >> MdpMinorShift;
 
+        mutex_init(&new->open_mutex);
         mutex_init(&new->reconfig_mutex);
         INIT_LIST_HEAD(&new->disks);
         INIT_LIST_HEAD(&new->all_mddevs);
@@ -1308,7 +1309,12 @@ static int super_1_validate(mddev_t *mddev, mdk_rdev_t *rdev)
         }
         if (mddev->level != LEVEL_MULTIPATH) {
                 int role;
-                role = le16_to_cpu(sb->dev_roles[rdev->desc_nr]);
+                if (rdev->desc_nr < 0 ||
+                    rdev->desc_nr >= le32_to_cpu(sb->max_dev)) {
+                        role = 0xffff;
+                        rdev->desc_nr = -1;
+                } else
+                        role = le16_to_cpu(sb->dev_roles[rdev->desc_nr]);
                 switch(role) {
                 case 0xffff: /* spare */
                         break;
@@ -1394,8 +1400,14 @@ static void super_1_sync(mddev_t *mddev, mdk_rdev_t *rdev)
                 if (rdev2->desc_nr+1 > max_dev)
                         max_dev = rdev2->desc_nr+1;
 
-        if (max_dev > le32_to_cpu(sb->max_dev))
+        if (max_dev > le32_to_cpu(sb->max_dev)) {
+                int bmask;
                 sb->max_dev = cpu_to_le32(max_dev);
+                rdev->sb_size = max_dev * 2 + 256;
+                bmask = queue_logical_block_size(rdev->bdev->bd_disk->queue)-1;
+                if (rdev->sb_size & bmask)
+                        rdev->sb_size = (rdev->sb_size | bmask) + 1;
+        }
         for (i=0; i<max_dev;i++)
                 sb->dev_roles[i] = cpu_to_le16(0xfffe);
         
@@ -1487,37 +1499,76 @@ static int match_mddev_units(mddev_t *mddev1, mddev_t *mddev2)
 
 static LIST_HEAD(pending_raid_disks);
 
-static void md_integrity_check(mdk_rdev_t *rdev, mddev_t *mddev)
+/*
+ * Try to register data integrity profile for an mddev
+ *
+ * This is called when an array is started and after a disk has been kicked
+ * from the array. It only succeeds if all working and active component devices
+ * are integrity capable with matching profiles.
+ */
+int md_integrity_register(mddev_t *mddev)
+{
+        mdk_rdev_t *rdev, *reference = NULL;
+
+        if (list_empty(&mddev->disks))
+                return 0; /* nothing to do */
+        if (blk_get_integrity(mddev->gendisk))
+                return 0; /* already registered */
+        list_for_each_entry(rdev, &mddev->disks, same_set) {
+                /* skip spares and non-functional disks */
+                if (test_bit(Faulty, &rdev->flags))
+                        continue;
+                if (rdev->raid_disk < 0)
+                        continue;
+                /*
+                 * If at least one rdev is not integrity capable, we can not
+                 * enable data integrity for the md device.
+                 */
+                if (!bdev_get_integrity(rdev->bdev))
+                        return -EINVAL;
+                if (!reference) {
+                        /* Use the first rdev as the reference */
+                        reference = rdev;
+                        continue;
+                }
+                /* does this rdev's profile match the reference profile? */
+                if (blk_integrity_compare(reference->bdev->bd_disk,
+                                rdev->bdev->bd_disk) < 0)
+                        return -EINVAL;
+        }
+        /*
+         * All component devices are integrity capable and have matching
+         * profiles, register the common profile for the md device.
+         */
+        if (blk_integrity_register(mddev->gendisk,
+                        bdev_get_integrity(reference->bdev)) != 0) {
+                printk(KERN_ERR "md: failed to register integrity for %s\n",
+                        mdname(mddev));
+                return -EINVAL;
+        }
+        printk(KERN_NOTICE "md: data integrity on %s enabled\n",
+                mdname(mddev));
+        return 0;
+}
+EXPORT_SYMBOL(md_integrity_register);
+
+/* Disable data integrity if non-capable/non-matching disk is being added */
+void md_integrity_add_rdev(mdk_rdev_t *rdev, mddev_t *mddev)
 {
-        struct mdk_personality *pers = mddev->pers;
-        struct gendisk *disk = mddev->gendisk;
         struct blk_integrity *bi_rdev = bdev_get_integrity(rdev->bdev);
-        struct blk_integrity *bi_mddev = blk_get_integrity(disk);
+        struct blk_integrity *bi_mddev = blk_get_integrity(mddev->gendisk);
 
-        /* Data integrity passthrough not supported on RAID 4, 5 and 6 */
-        if (pers && pers->level >= 4 && pers->level <= 6)
+        if (!bi_mddev) /* nothing to do */
                 return;
-
-        /* If rdev is integrity capable, register profile for mddev */
-        if (!bi_mddev && bi_rdev) {
-                if (blk_integrity_register(disk, bi_rdev))
-                        printk(KERN_ERR "%s: %s Could not register integrity!\n",
-                               __func__, disk->disk_name);
-                else
-                        printk(KERN_NOTICE "Enabling data integrity on %s\n",
-                               disk->disk_name);
+        if (rdev->raid_disk < 0) /* skip spares */
                 return;
-        }
-
-        /* Check that mddev and rdev have matching profiles */
-        if (blk_integrity_compare(disk, rdev->bdev->bd_disk) < 0) {
-                printk(KERN_ERR "%s: %s/%s integrity mismatch!\n", __func__,
-                       disk->disk_name, rdev->bdev->bd_disk->disk_name);
-                printk(KERN_NOTICE "Disabling data integrity on %s\n",
-                       disk->disk_name);
-                blk_integrity_unregister(disk);
-        }
+        if (bi_rdev && blk_integrity_compare(mddev->gendisk,
+                                             rdev->bdev->bd_disk) >= 0)
+                return;
+        printk(KERN_NOTICE "disabling data integrity on %s\n", mdname(mddev));
+        blk_integrity_unregister(mddev->gendisk);
 }
+EXPORT_SYMBOL(md_integrity_add_rdev);
 
 static int bind_rdev_to_array(mdk_rdev_t * rdev, mddev_t * mddev)
 {
@@ -1591,7 +1642,6 @@ static int bind_rdev_to_array(mdk_rdev_t * rdev, mddev_t * mddev)
         /* May as well allow recovery to be retried once */
         mddev->recovery_disabled = 0;
 
-        md_integrity_check(rdev, mddev);
         return 0;
 
  fail:
@@ -1756,9 +1806,10 @@ static void print_sb_1(struct mdp_superblock_1 *sb)
         __u8 *uuid;
 
         uuid = sb->set_uuid;
-        printk(KERN_INFO "md:  SB: (V:%u) (F:0x%08x) Array-ID:<%02x%02x%02x%02x"
-                        ":%02x%02x:%02x%02x:%02x%02x:%02x%02x%02x%02x%02x%02x>\n"
-               KERN_INFO "md:    Name: \"%s\" CT:%llu\n",
+        printk(KERN_INFO
+               "md:  SB: (V:%u) (F:0x%08x) Array-ID:<%02x%02x%02x%02x"
+               ":%02x%02x:%02x%02x:%02x%02x:%02x%02x%02x%02x%02x%02x>\n"
+               "md:    Name: \"%s\" CT:%llu\n",
                 le32_to_cpu(sb->major_version),
                 le32_to_cpu(sb->feature_map),
                 uuid[0], uuid[1], uuid[2], uuid[3],
@@ -1770,12 +1821,13 @@ static void print_sb_1(struct mdp_superblock_1 *sb)
                        & MD_SUPERBLOCK_1_TIME_SEC_MASK);
 
         uuid = sb->device_uuid;
-        printk(KERN_INFO "md:       L%u SZ%llu RD:%u LO:%u CS:%u DO:%llu DS:%llu SO:%llu"
+        printk(KERN_INFO
+               "md:       L%u SZ%llu RD:%u LO:%u CS:%u DO:%llu DS:%llu SO:%llu"
                         " RO:%llu\n"
-               KERN_INFO "md:     Dev:%08x UUID: %02x%02x%02x%02x:%02x%02x:%02x%02x:%02x%02x"
-                        ":%02x%02x%02x%02x%02x%02x\n"
-               KERN_INFO "md:       (F:0x%08x) UT:%llu Events:%llu ResyncOffset:%llu CSUM:0x%08x\n"
-               KERN_INFO "md:         (MaxDev:%u) \n",
+               "md:     Dev:%08x UUID: %02x%02x%02x%02x:%02x%02x:%02x%02x:%02x%02x"
+                        ":%02x%02x%02x%02x%02x%02x\n"
+               "md:       (F:0x%08x) UT:%llu Events:%llu ResyncOffset:%llu CSUM:0x%08x\n"
+               "md:         (MaxDev:%u) \n",
                 le32_to_cpu(sb->level),
                 (unsigned long long)le64_to_cpu(sb->size),
                 le32_to_cpu(sb->raid_disks),
@@ -1923,17 +1975,14 @@ repeat:
                 /* otherwise we have to go forward and ... */
                 mddev->events ++;
                 if (!mddev->in_sync || mddev->recovery_cp != MaxSector) { /* not clean */
-                        /* .. if the array isn't clean, insist on an odd 'events' */
-                        if ((mddev->events&1)==0) {
-                                mddev->events++;
+                        /* .. if the array isn't clean, an 'even' event must also go
+                         * to spares. */
+                        if ((mddev->events&1)==0)
                                 nospares = 0;
-                        }
                 } else {
-                        /* otherwise insist on an even 'events' (for clean states) */
-                        if ((mddev->events&1)) {
-                                mddev->events++;
+                        /* otherwise an 'odd' event must go to spares */
+                        if ((mddev->events&1))
                                 nospares = 0;
-                        }
                 }
         }
 
@@ -2655,6 +2704,7 @@ level_store(mddev_t *mddev, const char *buf, size_t len)
         ssize_t rv = len;
         struct mdk_personality *pers;
         void *priv;
+        mdk_rdev_t *rdev;
 
         if (mddev->pers == NULL) {
                 if (len == 0)
@@ -2734,6 +2784,12 @@ level_store(mddev_t *mddev, const char *buf, size_t len)
         mddev_suspend(mddev);
         mddev->pers->stop(mddev);
         module_put(mddev->pers->owner);
+        /* Invalidate devices that are now superfluous */
+        list_for_each_entry(rdev, &mddev->disks, same_set)
+                if (rdev->raid_disk >= mddev->raid_disks) {
+                        rdev->raid_disk = -1;
+                        clear_bit(In_sync, &rdev->flags);
+                }
         mddev->pers = pers;
         mddev->private = priv;
         strlcpy(mddev->clevel, pers->name, sizeof(mddev->clevel));
@@ -3543,6 +3599,7 @@ max_sync_store(mddev_t *mddev, const char *buf, size_t len)
                 if (max < mddev->resync_min)
                         return -EINVAL;
                 if (max < mddev->resync_max &&
+                    mddev->ro == 0 &&
                     test_bit(MD_RECOVERY_RUNNING, &mddev->recovery))
                         return -EBUSY;
 
@@ -3573,7 +3630,8 @@ suspend_lo_store(mddev_t *mddev, const char *buf, size_t len)
         char *e;
         unsigned long long new = simple_strtoull(buf, &e, 10);
 
-        if (mddev->pers->quiesce == NULL)
+        if (mddev->pers == NULL || 
+            mddev->pers->quiesce == NULL)
                 return -EINVAL;
         if (buf == e || (*e && *e != '\n'))
                 return -EINVAL;
@@ -3601,7 +3659,8 @@ suspend_hi_store(mddev_t *mddev, const char *buf, size_t len)
         char *e;
         unsigned long long new = simple_strtoull(buf, &e, 10);
 
-        if (mddev->pers->quiesce == NULL)
+        if (mddev->pers == NULL ||
+            mddev->pers->quiesce == NULL)
                 return -EINVAL;
         if (buf == e || (*e && *e != '\n'))
                 return -EINVAL;
@@ -3681,17 +3740,8 @@ array_size_store(mddev_t *mddev, const char *buf, size_t len)
 
         mddev->array_sectors = sectors;
         set_capacity(mddev->gendisk, mddev->array_sectors);
-        if (mddev->pers) {
-                struct block_device *bdev = bdget_disk(mddev->gendisk, 0);
-
-                if (bdev) {
-                        mutex_lock(&bdev->bd_inode->i_mutex);
-                        i_size_write(bdev->bd_inode,
-                                     (loff_t)mddev->array_sectors << 9);
-                        mutex_unlock(&bdev->bd_inode->i_mutex);
-                        bdput(bdev);
-                }
-        }
+        if (mddev->pers)
+                revalidate_disk(mddev->gendisk);
 
         return len;
 }
@@ -3844,11 +3894,9 @@ static int md_alloc(dev_t dev, char *name)
         flush_scheduled_work();
 
         mutex_lock(&disks_mutex);
-        if (mddev->gendisk) {
-                mutex_unlock(&disks_mutex);
-                mddev_put(mddev);
-                return -EEXIST;
-        }
+        error = -EEXIST;
+        if (mddev->gendisk)
+                goto abort;
 
         if (name) {
                 /* Need to ensure that 'name' is not a duplicate.
@@ -3860,17 +3908,15 @@ static int md_alloc(dev_t dev, char *name)
                         if (mddev2->gendisk &&
                             strcmp(mddev2->gendisk->disk_name, name) == 0) {
                                 spin_unlock(&all_mddevs_lock);
-                                return -EEXIST;
+                                goto abort;
                         }
                 spin_unlock(&all_mddevs_lock);
         }
 
+        error = -ENOMEM;
         mddev->queue = blk_alloc_queue(GFP_KERNEL);
-        if (!mddev->queue) {
-                mutex_unlock(&disks_mutex);
-                mddev_put(mddev);
-                return -ENOMEM;
-        }
+        if (!mddev->queue)
+                goto abort;
         mddev->queue->queuedata = mddev;
 
         /* Can be unlocked because the queue is new: no concurrency */
@@ -3880,11 +3926,9 @@ static int md_alloc(dev_t dev, char *name)
 
         disk = alloc_disk(1 << shift);
         if (!disk) {
-                mutex_unlock(&disks_mutex);
                 blk_cleanup_queue(mddev->queue);
                 mddev->queue = NULL;
-                mddev_put(mddev);
-                return -ENOMEM;
+                goto abort;
         }
         disk->major = MAJOR(mddev->unit);
         disk->first_minor = unit << shift;
@@ -3906,16 +3950,22 @@ static int md_alloc(dev_t dev, char *name)
         mddev->gendisk = disk;
         error = kobject_init_and_add(&mddev->kobj, &md_ktype,
                                      &disk_to_dev(disk)->kobj, "%s", "md");
-        mutex_unlock(&disks_mutex);
-        if (error)
+        if (error) {
+                /* This isn't possible, but as kobject_init_and_add is marked
+                 * __must_check, we must do something with the result
+                 */
                 printk(KERN_WARNING "md: cannot register %s/md - name in use\n",
                        disk->disk_name);
-        else {
+                error = 0;
+        }
+ abort:
+        mutex_unlock(&disks_mutex);
+        if (!error) {
                 kobject_uevent(&mddev->kobj, KOBJ_ADD);
                 mddev->sysfs_state = sysfs_get_dirent(mddev->kobj.sd, "array_state");
         }
         mddev_put(mddev);
-        return 0;
+        return error;
 }
 
 static struct kobject *md_probe(dev_t dev, int *part, void *data)
@@ -4044,10 +4094,6 @@ static int do_md_run(mddev_t * mddev)
         }
         strlcpy(mddev->clevel, pers->name, sizeof(mddev->clevel));
 
-        if (pers->level >= 4 && pers->level <= 6)
-                /* Cannot support integrity (yet) */
-                blk_integrity_unregister(mddev->gendisk);
-
         if (mddev->reshape_position != MaxSector &&
             pers->start_reshape == NULL) {
                 /* This personality cannot handle reshaping... */
@@ -4185,6 +4231,7 @@ static int do_md_run(mddev_t * mddev)
         md_wakeup_thread(mddev->thread);
         md_wakeup_thread(mddev->sync_thread); /* possibly kick off a reshape */
 
+        revalidate_disk(mddev->gendisk);
         mddev->changed = 1;
         md_new_event(mddev);
         sysfs_notify_dirent(mddev->sysfs_state);
@@ -4256,12 +4303,11 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open)
         struct gendisk *disk = mddev->gendisk;
         mdk_rdev_t *rdev;
 
+        mutex_lock(&mddev->open_mutex);
         if (atomic_read(&mddev->openers) > is_open) {
                 printk("md: %s still in use.\n",mdname(mddev));
-                return -EBUSY;
-        }
-
-        if (mddev->pers) {
+                err = -EBUSY;
+        } else if (mddev->pers) {
 
                 if (mddev->sync_thread) {
                         set_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
@@ -4318,8 +4364,12 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open)
                 if (mode == 1)
                         set_disk_ro(disk, 1);
                 clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
+                err = 0;
         }
-
+out:
+        mutex_unlock(&mddev->open_mutex);
+        if (err)
+                return err;
         /*
          * Free resources if final stop
          */
@@ -4385,7 +4435,6 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open)
         blk_integrity_unregister(disk);
         md_new_event(mddev);
         sysfs_notify_dirent(mddev->sysfs_state);
-out:
         return err;
 }
 
@@ -5083,18 +5132,8 @@ static int update_size(mddev_t *mddev, sector_t num_sectors)
                         return -ENOSPC;
         }
         rv = mddev->pers->resize(mddev, num_sectors);
-        if (!rv) {
-                struct block_device *bdev;
-
-                bdev = bdget_disk(mddev->gendisk, 0);
-                if (bdev) {
-                        mutex_lock(&bdev->bd_inode->i_mutex);
-                        i_size_write(bdev->bd_inode,
-                                     (loff_t)mddev->array_sectors << 9);
-                        mutex_unlock(&bdev->bd_inode->i_mutex);
-                        bdput(bdev);
-                }
-        }
+        if (!rv)
+                revalidate_disk(mddev->gendisk);
         return rv;
 }
 
@@ -5480,12 +5519,12 @@ static int md_open(struct block_device *bdev, fmode_t mode)
         }
         BUG_ON(mddev != bdev->bd_disk->private_data);
 
-        if ((err = mutex_lock_interruptible_nested(&mddev->reconfig_mutex, 1)))
+        if ((err = mutex_lock_interruptible(&mddev->open_mutex)))
                 goto out;
 
         err = 0;
         atomic_inc(&mddev->openers);
-        mddev_unlock(mddev);
+        mutex_unlock(&mddev->open_mutex);
 
         check_disk_change(bdev);
  out:
@@ -6334,10 +6373,16 @@ void md_do_sync(mddev_t *mddev)
                         sysfs_notify(&mddev->kobj, NULL, "sync_completed");
                 }
 
-                if (j >= mddev->resync_max)
-                        wait_event(mddev->recovery_wait,
-                                   mddev->resync_max > j
-                                   || kthread_should_stop());
+                while (j >= mddev->resync_max && !kthread_should_stop()) {
+                        /* As this condition is controlled by user-space,
+                         * we can block indefinitely, so use '_interruptible'
+                         * to avoid triggering warnings.
+                         */
+                        flush_signals(current); /* just in case */
+                        wait_event_interruptible(mddev->recovery_wait,
+                                                 mddev->resync_max > j
+                                                 || kthread_should_stop());
+                }
 
                 if (kthread_should_stop())
                         goto interrupted;
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 9430a110db93..f8fc188bc762 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -223,6 +223,16 @@ struct mddev_s
                                                             * so we don't loop trying */
 
         int                             in_sync;        /* know to not need resync */
+        /* 'open_mutex' avoids races between 'md_open' and 'do_md_stop', so
+         * that we are never stopping an array while it is open.
+         * 'reconfig_mutex' protects all other reconfiguration.
+         * These locks are separate due to conflicting interactions
+         * with bdev->bd_mutex.
+         * Lock ordering is:
+         *  reconfig_mutex -> bd_mutex : e.g. do_md_run -> revalidate_disk
+         *  bd_mutex -> open_mutex:  e.g. __blkdev_get -> md_open
+         */
+        struct mutex                    open_mutex;
         struct mutex                    reconfig_mutex;
         atomic_t                        active;         /* general refcount */
         atomic_t                        openers;        /* number of active opens */
@@ -431,5 +441,7 @@ extern int md_allow_write(mddev_t *mddev);
 extern void md_wait_for_blocked_rdev(mdk_rdev_t *rdev, mddev_t *mddev);
 extern void md_set_array_sectors(mddev_t *mddev, sector_t array_sectors);
 extern int md_check_no_bitmap(mddev_t *mddev);
+extern int md_integrity_register(mddev_t *mddev);
+void md_integrity_add_rdev(mdk_rdev_t *rdev, mddev_t *mddev);
 
 #endif /* _MD_MD_H */
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index cbe368fa6598..7140909f6662 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -294,7 +294,8 @@ static int multipath_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
         for (path = first; path <= last; path++)
                 if ((p=conf->multipaths+path)->rdev == NULL) {
                         q = rdev->bdev->bd_disk->queue;
-                        blk_queue_stack_limits(mddev->queue, q);
+                        disk_stack_limits(mddev->gendisk, rdev->bdev,
+                                          rdev->data_offset << 9);
 
                 /* as we don't honour merge_bvec_fn, we must never risk
                  * violating it, so limit ->max_sector to one PAGE, as
@@ -312,6 +313,7 @@ static int multipath_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
                         set_bit(In_sync, &rdev->flags);
                         rcu_assign_pointer(p->rdev, rdev);
                         err = 0;
+                        md_integrity_add_rdev(rdev, mddev);
                         break;
                 }
 
@@ -344,7 +346,9 @@ static int multipath_remove_disk(mddev_t *mddev, int number)
                         /* lost the race, try later */
                         err = -EBUSY;
                         p->rdev = rdev;
+                        goto abort;
                 }
+                md_integrity_register(mddev);
         }
 abort:
 
@@ -463,9 +467,9 @@ static int multipath_run (mddev_t *mddev)
 
                 disk = conf->multipaths + disk_idx;
                 disk->rdev = rdev;
+                disk_stack_limits(mddev->gendisk, rdev->bdev,
+                                  rdev->data_offset << 9);
 
-                blk_queue_stack_limits(mddev->queue,
-                                       rdev->bdev->bd_disk->queue);
                 /* as we don't honour merge_bvec_fn, we must never risk
                  * violating it, not that we ever expect a device with
                  * a merge_bvec_fn to be involved in multipath */
@@ -518,7 +522,7 @@ static int multipath_run (mddev_t *mddev)
         mddev->queue->unplug_fn = multipath_unplug;
         mddev->queue->backing_dev_info.congested_fn = multipath_congested;
         mddev->queue->backing_dev_info.congested_data = mddev;
-
+        md_integrity_register(mddev);
         return 0;
 
 out_free_conf:
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index ab4a489d8695..898e2bdfee47 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -170,8 +170,8 @@ static int create_strip_zones(mddev_t *mddev)
                 }
                 dev[j] = rdev1;
 
-                blk_queue_stack_limits(mddev->queue,
-                                       rdev1->bdev->bd_disk->queue);
+                disk_stack_limits(mddev->gendisk, rdev1->bdev,
+                                  rdev1->data_offset << 9);
                 /* as we don't honour merge_bvec_fn, we must never risk
                  * violating it, so limit ->max_sector to one PAGE, as
                  * a one page request is never in violation.
@@ -250,6 +250,11 @@ static int create_strip_zones(mddev_t *mddev)
                        mddev->chunk_sectors << 9);
                 goto abort;
         }
+
+        blk_queue_io_min(mddev->queue, mddev->chunk_sectors << 9);
+        blk_queue_io_opt(mddev->queue,
+                         (mddev->chunk_sectors << 9) * mddev->raid_disks);
+
         printk(KERN_INFO "raid0: done.\n");
         mddev->private = conf;
         return 0;
@@ -346,6 +351,7 @@ static int raid0_run(mddev_t *mddev)
 
         blk_queue_merge_bvec(mddev->queue, raid0_mergeable_bvec);
         dump_zones(mddev);
+        md_integrity_register(mddev);
         return 0;
 }
 
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 89939a7aef57..8726fd7ebce5 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1123,8 +1123,8 @@ static int raid1_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
         for (mirror = first; mirror <= last; mirror++)
                 if ( !(p=conf->mirrors+mirror)->rdev) {
 
-                        blk_queue_stack_limits(mddev->queue,
-                                               rdev->bdev->bd_disk->queue);
+                        disk_stack_limits(mddev->gendisk, rdev->bdev,
+                                          rdev->data_offset << 9);
                         /* as we don't honour merge_bvec_fn, we must never risk
                          * violating it, so limit ->max_sector to one PAGE, as
                          * a one page request is never in violation.
@@ -1144,7 +1144,7 @@ static int raid1_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
                         rcu_assign_pointer(p->rdev, rdev);
                         break;
                 }
-
+        md_integrity_add_rdev(rdev, mddev);
         print_conf(conf);
         return err;
 }
@@ -1178,7 +1178,9 @@ static int raid1_remove_disk(mddev_t *mddev, int number)
                         /* lost the race, try later */
                         err = -EBUSY;
                         p->rdev = rdev;
+                        goto abort;
                 }
+                md_integrity_register(mddev);
         }
 abort:
 
@@ -1988,9 +1990,8 @@ static int run(mddev_t *mddev)
                 disk = conf->mirrors + disk_idx;
 
                 disk->rdev = rdev;
-
-                blk_queue_stack_limits(mddev->queue,
-                                       rdev->bdev->bd_disk->queue);
+                disk_stack_limits(mddev->gendisk, rdev->bdev,
+                                  rdev->data_offset << 9);
                 /* as we don't honour merge_bvec_fn, we must never risk
                  * violating it, so limit ->max_sector to one PAGE, as
                  * a one page request is never in violation.
@@ -2068,7 +2069,7 @@ static int run(mddev_t *mddev)
         mddev->queue->unplug_fn = raid1_unplug;
         mddev->queue->backing_dev_info.congested_fn = raid1_congested;
         mddev->queue->backing_dev_info.congested_data = mddev;
-
+        md_integrity_register(mddev);
         return 0;
 
 out_no_mem:
@@ -2133,6 +2134,7 @@ static int raid1_resize(mddev_t *mddev, sector_t sectors)
                 return -EINVAL;
         set_capacity(mddev->gendisk, mddev->array_sectors);
         mddev->changed = 1;
+        revalidate_disk(mddev->gendisk);
         if (sectors > mddev->dev_sectors &&
             mddev->recovery_cp == MaxSector) {
                 mddev->recovery_cp = mddev->dev_sectors;
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index ae12ceafe10c..3d9020cf6f6e 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1151,8 +1151,8 @@ static int raid10_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
         for ( ; mirror <= last ; mirror++)
                 if ( !(p=conf->mirrors+mirror)->rdev) {
 
-                        blk_queue_stack_limits(mddev->queue,
-                                               rdev->bdev->bd_disk->queue);
+                        disk_stack_limits(mddev->gendisk, rdev->bdev,
+                                          rdev->data_offset << 9);
                         /* as we don't honour merge_bvec_fn, we must never risk
                          * violating it, so limit ->max_sector to one PAGE, as
                          * a one page request is never in violation.
@@ -1170,6 +1170,7 @@ static int raid10_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
                         break;
                 }
 
+        md_integrity_add_rdev(rdev, mddev);
         print_conf(conf);
         return err;
 }
@@ -1203,7 +1204,9 @@ static int raid10_remove_disk(mddev_t *mddev, int number)
                         /* lost the race, try later */
                         err = -EBUSY;
                         p->rdev = rdev;
+                        goto abort;
                 }
+                md_integrity_register(mddev);
         }
 abort:
 
@@ -2044,7 +2047,7 @@ raid10_size(mddev_t *mddev, sector_t sectors, int raid_disks)
 static int run(mddev_t *mddev)
 {
         conf_t *conf;
-        int i, disk_idx;
+        int i, disk_idx, chunk_size;
         mirror_info_t *disk;
         mdk_rdev_t *rdev;
         int nc, fc, fo;
@@ -2130,6 +2133,14 @@ static int run(mddev_t *mddev)
         spin_lock_init(&conf->device_lock);
         mddev->queue->queue_lock = &conf->device_lock;
 
+        chunk_size = mddev->chunk_sectors << 9;
+        blk_queue_io_min(mddev->queue, chunk_size);
+        if (conf->raid_disks % conf->near_copies)
+                blk_queue_io_opt(mddev->queue, chunk_size * conf->raid_disks);
+        else
+                blk_queue_io_opt(mddev->queue, chunk_size *
+                                 (conf->raid_disks / conf->near_copies));
+
         list_for_each_entry(rdev, &mddev->disks, same_set) {
                 disk_idx = rdev->raid_disk;
                 if (disk_idx >= mddev->raid_disks
@@ -2138,9 +2149,8 @@ static int run(mddev_t *mddev)
                 disk = conf->mirrors + disk_idx;
 
                 disk->rdev = rdev;
-
-                blk_queue_stack_limits(mddev->queue,
-                                       rdev->bdev->bd_disk->queue);
+                disk_stack_limits(mddev->gendisk, rdev->bdev,
+                                  rdev->data_offset << 9);
                 /* as we don't honour merge_bvec_fn, we must never risk
                  * violating it, so limit ->max_sector to one PAGE, as
                  * a one page request is never in violation.
@@ -2218,6 +2228,7 @@ static int run(mddev_t *mddev)
 
         if (conf->near_copies < mddev->raid_disks)
                 blk_queue_merge_bvec(mddev->queue, raid10_mergeable_bvec);
+        md_integrity_register(mddev);
         return 0;
 
 out_free_conf:
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index cac6f4d3a143..9b00a229015a 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -3911,13 +3911,21 @@ static int make_request(struct request_queue *q, struct bio * bi)
                                         goto retry;
                                 }
                         }
-                        /* FIXME what if we get a false positive because these
-                         * are being updated.
-                         */
-                        if (logical_sector >= mddev->suspend_lo &&
+
+                        if (bio_data_dir(bi) == WRITE &&
+                            logical_sector >= mddev->suspend_lo &&
                             logical_sector < mddev->suspend_hi) {
                                 release_stripe(sh);
-                                schedule();
+                                /* As the suspend_* range is controlled by
+                                 * userspace, we want an interruptible
+                                 * wait.
+                                 */
+                                flush_signals(current);
+                                prepare_to_wait(&conf->wait_for_overlap,
+                                                &w, TASK_INTERRUPTIBLE);
+                                if (logical_sector >= mddev->suspend_lo &&
+                                    logical_sector < mddev->suspend_hi)
+                                        schedule();
                                 goto retry;
                         }
 
@@ -3989,7 +3997,7 @@ static sector_t reshape_request(mddev_t *mddev, sector_t sector_nr, int *skipped
                     conf->reshape_progress < raid5_size(mddev, 0, 0)) {
                         sector_nr = raid5_size(mddev, 0, 0)
                                 - conf->reshape_progress;
-                } else if (mddev->delta_disks > 0 &&
+                } else if (mddev->delta_disks >= 0 &&
                            conf->reshape_progress > 0)
                         sector_nr = conf->reshape_progress;
                 sector_div(sector_nr, new_data_disks);
@@ -4203,6 +4211,9 @@ static inline sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *ski
                 return 0;
         }
 
+        /* Allow raid5_quiesce to complete */
+        wait_event(conf->wait_for_overlap, conf->quiesce != 2);
+
         if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery))
                 return reshape_request(mddev, sector_nr, skipped);
 
@@ -4803,7 +4814,7 @@ static raid5_conf_t *setup_conf(mddev_t *mddev)
 static int run(mddev_t *mddev)
 {
         raid5_conf_t *conf;
-        int working_disks = 0;
+        int working_disks = 0, chunk_size;
         mdk_rdev_t *rdev;
 
         if (mddev->recovery_cp != MaxSector)
@@ -4844,7 +4855,26 @@ static int run(mddev_t *mddev)
                            (old_disks-max_degraded));
                 /* here_old is the first stripe that we might need to read
                  * from */
-                if (here_new >= here_old) {
+                if (mddev->delta_disks == 0) {
+                        /* We cannot be sure it is safe to start an in-place
+                         * reshape.  It is only safe if user-space if monitoring
+                         * and taking constant backups.
+                         * mdadm always starts a situation like this in
+                         * readonly mode so it can take control before
+                         * allowing any writes.  So just check for that.
+                         */
+                        if ((here_new * mddev->new_chunk_sectors != 
+                             here_old * mddev->chunk_sectors) ||
+                            mddev->ro == 0) {
+                                printk(KERN_ERR "raid5: in-place reshape must be started"
+                                       " in read-only mode - aborting\n");
+                                return -EINVAL;
+                        }
+                } else if (mddev->delta_disks < 0
+                    ? (here_new * mddev->new_chunk_sectors <=
+                       here_old * mddev->chunk_sectors)
+                    : (here_new * mddev->new_chunk_sectors >=
+                       here_old * mddev->chunk_sectors)) {
                         /* Reading from the same stripe as writing to - bad */
                         printk(KERN_ERR "raid5: reshape_position too early for "
                                "auto-recovery - aborting.\n");
@@ -4958,6 +4988,14 @@ static int run(mddev_t *mddev)
         md_set_array_sectors(mddev, raid5_size(mddev, 0, 0));
 
         blk_queue_merge_bvec(mddev->queue, raid5_mergeable_bvec);
+        chunk_size = mddev->chunk_sectors << 9;
+        blk_queue_io_min(mddev->queue, chunk_size);
+        blk_queue_io_opt(mddev->queue, chunk_size *
+                         (conf->raid_disks - conf->max_degraded));
+
+        list_for_each_entry(rdev, &mddev->disks, same_set)
+                disk_stack_limits(mddev->gendisk, rdev->bdev,
+                                  rdev->data_offset << 9);
 
         return 0;
 abort:
@@ -5185,6 +5223,7 @@ static int raid5_resize(mddev_t *mddev, sector_t sectors)
                 return -EINVAL;
         set_capacity(mddev->gendisk, mddev->array_sectors);
         mddev->changed = 1;
+        revalidate_disk(mddev->gendisk);
         if (sectors > mddev->dev_sectors && mddev->recovery_cp == MaxSector) {
                 mddev->recovery_cp = mddev->dev_sectors;
                 set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
@@ -5330,7 +5369,7 @@ static int raid5_start_reshape(mddev_t *mddev)
                 spin_unlock_irqrestore(&conf->device_lock, flags);
         }
         mddev->raid_disks = conf->raid_disks;
-        mddev->reshape_position = 0;
+        mddev->reshape_position = conf->reshape_progress;
         set_bit(MD_CHANGE_DEVS, &mddev->flags);
 
         clear_bit(MD_RECOVERY_SYNC, &mddev->recovery);
@@ -5385,7 +5424,6 @@ static void end_reshape(raid5_conf_t *conf)
  */
 static void raid5_finish_reshape(mddev_t *mddev)
 {
-        struct block_device *bdev;
         raid5_conf_t *conf = mddev->private;
 
         if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery)) {
@@ -5394,15 +5432,7 @@ static void raid5_finish_reshape(mddev_t *mddev)
                         md_set_array_sectors(mddev, raid5_size(mddev, 0, 0));
                         set_capacity(mddev->gendisk, mddev->array_sectors);
                         mddev->changed = 1;
-
-                        bdev = bdget_disk(mddev->gendisk, 0);
-                        if (bdev) {
-                                mutex_lock(&bdev->bd_inode->i_mutex);
-                                i_size_write(bdev->bd_inode,
-                                             (loff_t)mddev->array_sectors << 9);
-                                mutex_unlock(&bdev->bd_inode->i_mutex);
-                                bdput(bdev);
-                        }
+                        revalidate_disk(mddev->gendisk);
                 } else {
                         int d;
                         mddev->degraded = conf->raid_disks;
@@ -5413,8 +5443,15 @@ static void raid5_finish_reshape(mddev_t *mddev)
                                         mddev->degraded--;
                         for (d = conf->raid_disks ;
                              d < conf->raid_disks - mddev->delta_disks;
-                             d++)
-                                raid5_remove_disk(mddev, d);
+                             d++) {
+                                mdk_rdev_t *rdev = conf->disks[d].rdev;
+                                if (rdev && raid5_remove_disk(mddev, d) == 0) {
+                                        char nm[20];
+                                        sprintf(nm, "rd%d", rdev->raid_disk);
+                                        sysfs_remove_link(&mddev->kobj, nm);
+                                        rdev->raid_disk = -1;
+                                }
+                        }
                 }
                 mddev->layout = conf->algorithm;
                 mddev->chunk_sectors = conf->chunk_sectors;
@@ -5434,12 +5471,18 @@ static void raid5_quiesce(mddev_t *mddev, int state)
 
         case 1: /* stop all writes */
                 spin_lock_irq(&conf->device_lock);
-                conf->quiesce = 1;
+                /* '2' tells resync/reshape to pause so that all
+                 * active stripes can drain
+                 */
+                conf->quiesce = 2;
                 wait_event_lock_irq(conf->wait_for_stripe,
                                     atomic_read(&conf->active_stripes) == 0 &&
                                     atomic_read(&conf->active_aligned_reads) == 0,
                                     conf->device_lock, /* nothing */);
+                conf->quiesce = 1;
                 spin_unlock_irq(&conf->device_lock);
+                /* allow reshape to continue */
+                wake_up(&conf->wait_for_overlap);
                 break;
 
         case 0: /* re-enable writes */
diff --git a/drivers/media/common/tuners/tuner-xc2028.c b/drivers/media/common/tuners/tuner-xc2028.c
index b6da9c3873fe..aa20ce8cc668 100644
--- a/drivers/media/common/tuners/tuner-xc2028.c
+++ b/drivers/media/common/tuners/tuner-xc2028.c
@@ -1096,8 +1096,19 @@ static int xc2028_set_params(struct dvb_frontend *fe,
         }
 
         /* All S-code tables need a 200kHz shift */
-        if (priv->ctrl.demod)
+        if (priv->ctrl.demod) {
                 demod = priv->ctrl.demod + 200;
+                /*
+                 * The DTV7 S-code table needs a 700 kHz shift.
+                 * Thanks to Terry Wu <terrywu2009@gmail.com> for reporting this
+                 *
+                 * DTV7 is only used in Australia.  Germany or Italy may also
+                 * use this firmware after initialization, but a tune to a UHF
+                 * channel should then cause DTV78 to be used.
+                 */
+                if (type & DTV7)
+                        demod += 500;
+        }
 
         return generic_set_freq(fe, p->frequency,
                                 T_DIGITAL_TV, type, 0, demod);
diff --git a/drivers/media/dvb/b2c2/flexcop-fe-tuner.c b/drivers/media/dvb/b2c2/flexcop-fe-tuner.c
index efb4a6c2b57a..9a6307a347b2 100644
--- a/drivers/media/dvb/b2c2/flexcop-fe-tuner.c
+++ b/drivers/media/dvb/b2c2/flexcop-fe-tuner.c
@@ -20,8 +20,14 @@
 #include "tuner-simple.h"
 #include "stv0297.h"
 
+
+/* Can we use the specified front-end?  Remember that if we are compiled
+ * into the kernel we can't call code that's in modules.  */
+#define FE_SUPPORTED(fe) (defined(CONFIG_DVB_##fe) || \
+        (defined(CONFIG_DVB_##fe##_MODULE) && defined(MODULE)))
+
 /* lnb control */
-#if defined(CONFIG_DVB_MT312_MODULE) || defined(CONFIG_DVB_STV0299_MODULE)
+#if FE_SUPPORTED(MT312) || FE_SUPPORTED(STV0299)
 static int flexcop_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
 {
         struct flexcop_device *fc = fe->dvb->priv;
@@ -49,8 +55,7 @@ static int flexcop_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage
 }
 #endif
 
-#if defined(CONFIG_DVB_S5H1420_MODULE) || defined(CONFIG_DVB_STV0299_MODULE) \
-        || defined(CONFIG_DVB_MT312_MODULE)
+#if FE_SUPPORTED(S5H1420) || FE_SUPPORTED(STV0299) || FE_SUPPORTED(MT312)
 static int flexcop_sleep(struct dvb_frontend* fe)
 {
         struct flexcop_device *fc = fe->dvb->priv;
@@ -61,7 +66,7 @@ static int flexcop_sleep(struct dvb_frontend* fe)
 #endif
 
 /* SkyStar2 DVB-S rev 2.3 */
-#if defined(CONFIG_DVB_MT312_MODULE)
+#if FE_SUPPORTED(MT312)
 static int flexcop_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
 {
 /* u16 wz_half_period_for_45_mhz[] = { 0x01ff, 0x0154, 0x00ff, 0x00cc }; */
@@ -193,10 +198,12 @@ static int skystar2_rev23_attach(struct flexcop_device *fc,
         }
         return 0;
 }
+#else
+#define skystar2_rev23_attach NULL
 #endif
 
 /* SkyStar2 DVB-S rev 2.6 */
-#if defined(CONFIG_DVB_STV0299_MODULE)
+#if FE_SUPPORTED(STV0299)
 static int samsung_tbmu24112_set_symbol_rate(struct dvb_frontend *fe,
         u32 srate, u32 ratio)
 {
@@ -321,10 +328,12 @@ static int skystar2_rev26_attach(struct flexcop_device *fc,
         }
         return 0;
 }
+#else
+#define skystar2_rev26_attach NULL
 #endif
 
 /* SkyStar2 DVB-S rev 2.7 */
-#if defined(CONFIG_DVB_S5H1420_MODULE)
+#if FE_SUPPORTED(S5H1420) && FE_SUPPORTED(ISL6421) && FE_SUPPORTED(TUNER_ITD1000)
 static struct s5h1420_config skystar2_rev2_7_s5h1420_config = {
         .demod_address = 0x53,
         .invert = 1,
@@ -385,10 +394,12 @@ fail:
         fc->fc_i2c_adap[0].no_base_addr = 0;
         return 0;
 }
+#else
+#define skystar2_rev27_attach NULL
 #endif
 
 /* SkyStar2 rev 2.8 */
-#if defined(CONFIG_DVB_CX24123_MODULE)
+#if FE_SUPPORTED(CX24123) && FE_SUPPORTED(ISL6421) && FE_SUPPORTED(TUNER_CX24113)
 static struct cx24123_config skystar2_rev2_8_cx24123_config = {
         .demod_address = 0x55,
         .dont_use_pll = 1,
@@ -433,10 +444,12 @@ static int skystar2_rev28_attach(struct flexcop_device *fc,
          * IR-receiver (PIC16F818) - but the card has no input for that ??? */
         return 1;
 }
+#else
+#define skystar2_rev28_attach NULL
 #endif
 
 /* AirStar DVB-T */
-#if defined(CONFIG_DVB_MT352_MODULE)
+#if FE_SUPPORTED(MT352)
 static int samsung_tdtc9251dh0_demod_init(struct dvb_frontend *fe)
 {
         static u8 mt352_clock_config[] = { 0x89, 0x18, 0x2d };
@@ -495,10 +508,12 @@ static int airstar_dvbt_attach(struct flexcop_device *fc,
         }
         return 0;
 }
+#else
+#define airstar_dvbt_attach NULL
 #endif
 
 /* AirStar ATSC 1st generation */
-#if defined(CONFIG_DVB_BCM3510_MODULE)
+#if FE_SUPPORTED(BCM3510)
 static int flexcop_fe_request_firmware(struct dvb_frontend *fe,
         const struct firmware **fw, char* name)
 {
@@ -517,10 +532,12 @@ static int airstar_atsc1_attach(struct flexcop_device *fc,
         fc->fe = dvb_attach(bcm3510_attach, &air2pc_atsc_first_gen_config, i2c);
         return fc->fe != NULL;
 }
+#else
+#define airstar_atsc1_attach NULL
 #endif
 
 /* AirStar ATSC 2nd generation */
-#if defined(CONFIG_DVB_NXT200X_MODULE)
+#if FE_SUPPORTED(NXT200X) && FE_SUPPORTED(PLL)
 static struct nxt200x_config samsung_tbmv_config = {
         .demod_address = 0x0a,
 };
@@ -535,10 +552,12 @@ static int airstar_atsc2_attach(struct flexcop_device *fc,
         return !!dvb_attach(dvb_pll_attach, fc->fe, 0x61, NULL,
                             DVB_PLL_SAMSUNG_TBMV);
 }
+#else
+#define airstar_atsc2_attach NULL
 #endif
 
 /* AirStar ATSC 3rd generation */
-#if defined(CONFIG_DVB_LGDT330X_MODULE)
+#if FE_SUPPORTED(LGDT330X)
 static struct lgdt330x_config air2pc_atsc_hd5000_config = {
         .demod_address       = 0x59,
         .demod_chip          = LGDT3303,
@@ -556,10 +575,12 @@ static int airstar_atsc3_attach(struct flexcop_device *fc,
         return !!dvb_attach(simple_tuner_attach, fc->fe, i2c, 0x61,
                             TUNER_LG_TDVS_H06XF);
 }
+#else
+#define airstar_atsc3_attach NULL
 #endif
 
 /* CableStar2 DVB-C */
-#if defined(CONFIG_DVB_STV0297_MODULE)
+#if FE_SUPPORTED(STV0297)
 static int alps_tdee4_stv0297_tuner_set_params(struct dvb_frontend* fe,
                 struct dvb_frontend_parameters *fep)
 {
@@ -698,39 +719,23 @@ static int cablestar2_attach(struct flexcop_device *fc,
         fc->fe->ops.tuner_ops.set_params = alps_tdee4_stv0297_tuner_set_params;
         return 1;
 }
+#else
+#define cablestar2_attach NULL
 #endif
 
 static struct {
         flexcop_device_type_t type;
         int (*attach)(struct flexcop_device *, struct i2c_adapter *);
 } flexcop_frontends[] = {
-#if defined(CONFIG_DVB_S5H1420_MODULE)
         { FC_SKY_REV27, skystar2_rev27_attach },
-#endif
-#if defined(CONFIG_DVB_CX24123_MODULE)
         { FC_SKY_REV28, skystar2_rev28_attach },
-#endif
-#if defined(CONFIG_DVB_STV0299_MODULE)
         { FC_SKY_REV26, skystar2_rev26_attach },
-#endif
-#if defined(CONFIG_DVB_MT352_MODULE)
         { FC_AIR_DVBT, airstar_dvbt_attach },
-#endif
-#if defined(CONFIG_DVB_NXT200X_MODULE)
         { FC_AIR_ATSC2, airstar_atsc2_attach },
-#endif
-#if defined(CONFIG_DVB_LGDT330X_MODULE)
         { FC_AIR_ATSC3, airstar_atsc3_attach },
-#endif
-#if defined(CONFIG_DVB_BCM3510_MODULE)
         { FC_AIR_ATSC1, airstar_atsc1_attach },
-#endif
-#if defined(CONFIG_DVB_STV0297_MODULE)
         { FC_CABLE, cablestar2_attach },
-#endif
-#if defined(CONFIG_DVB_MT312_MODULE)
         { FC_SKY_REV23, skystar2_rev23_attach },
-#endif
 };
 
 /* try to figure out the frontend */
@@ -738,6 +743,8 @@ int flexcop_frontend_init(struct flexcop_device *fc)
 {
         int i;
         for (i = 0; i < ARRAY_SIZE(flexcop_frontends); i++) {
+                if (!flexcop_frontends[i].attach)
+                        continue;
                 /* type needs to be set before, because of some workarounds
                  * done based on the probed card type */
                 fc->dev_type = flexcop_frontends[i].type;
diff --git a/drivers/media/dvb/bt8xx/dst_ca.c b/drivers/media/dvb/bt8xx/dst_ca.c
index 4601b059b2b2..0e246eaad05a 100644
--- a/drivers/media/dvb/bt8xx/dst_ca.c
+++ b/drivers/media/dvb/bt8xx/dst_ca.c
@@ -21,6 +21,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/smp_lock.h>
 #include <linux/string.h>
 #include <linux/dvb/ca.h>
 #include "dvbdev.h"
diff --git a/drivers/media/dvb/dvb-core/dvbdev.h b/drivers/media/dvb/dvb-core/dvbdev.h
index 79927305e84d..487919bea7ae 100644
--- a/drivers/media/dvb/dvb-core/dvbdev.h
+++ b/drivers/media/dvb/dvb-core/dvbdev.h
@@ -27,7 +27,6 @@
 #include <linux/poll.h>
 #include <linux/fs.h>
 #include <linux/list.h>
-#include <linux/smp_lock.h>
 
 #define DVB_MAJOR 212
 
diff --git a/drivers/media/dvb/frontends/af9013.c b/drivers/media/dvb/frontends/af9013.c
index 136c5863d81b..12e018b4107d 100644
--- a/drivers/media/dvb/frontends/af9013.c
+++ b/drivers/media/dvb/frontends/af9013.c
@@ -527,6 +527,10 @@ static int af9013_set_ofdm_params(struct af9013_state *state,
         u8 i, buf[3] = {0, 0, 0};
         *auto_mode = 0; /* set if parameters are requested to auto set */
 
+        /* Try auto-detect transmission parameters in case of AUTO requested or
+           garbage parameters given by application for compatibility.
+           MPlayer seems to provide garbage parameters currently. */
+
         switch (params->transmission_mode) {
         case TRANSMISSION_MODE_AUTO:
                 *auto_mode = 1;
@@ -536,7 +540,8 @@ static int af9013_set_ofdm_params(struct af9013_state *state,
                 buf[0] |= (1 << 0);
                 break;
         default:
-                return -EINVAL;
+                deb_info("%s: invalid transmission_mode\n", __func__);
+                *auto_mode = 1;
         }
 
         switch (params->guard_interval) {
@@ -554,7 +559,8 @@ static int af9013_set_ofdm_params(struct af9013_state *state,
                 buf[0] |= (3 << 2);
                 break;
         default:
-                return -EINVAL;
+                deb_info("%s: invalid guard_interval\n", __func__);
+                *auto_mode = 1;
         }
 
         switch (params->hierarchy_information) {
@@ -572,7 +578,8 @@ static int af9013_set_ofdm_params(struct af9013_state *state,
                 buf[0] |= (3 << 4);
                 break;
         default:
-                return -EINVAL;
+                deb_info("%s: invalid hierarchy_information\n", __func__);
+                *auto_mode = 1;
         };
 
         switch (params->constellation) {
@@ -587,7 +594,8 @@ static int af9013_set_ofdm_params(struct af9013_state *state,
                 buf[1] |= (2 << 6);
                 break;
         default:
-                return -EINVAL;
+                deb_info("%s: invalid constellation\n", __func__);
+                *auto_mode = 1;
         }
 
         /* Use HP. How and which case we can switch to LP? */
@@ -611,7 +619,8 @@ static int af9013_set_ofdm_params(struct af9013_state *state,
                 buf[2] |= (4 << 0);
                 break;
         default:
-                return -EINVAL;
+                deb_info("%s: invalid code_rate_HP\n", __func__);
+                *auto_mode = 1;
         }
 
         switch (params->code_rate_LP) {
@@ -638,7 +647,8 @@ static int af9013_set_ofdm_params(struct af9013_state *state,
                 if (params->hierarchy_information == HIERARCHY_AUTO)
                         break;
         default:
-                return -EINVAL;
+                deb_info("%s: invalid code_rate_LP\n", __func__);
+                *auto_mode = 1;
         }
 
         switch (params->bandwidth) {
@@ -651,7 +661,8 @@ static int af9013_set_ofdm_params(struct af9013_state *state,
                 buf[1] |= (2 << 2);
                 break;
         default:
-                return -EINVAL;
+                deb_info("%s: invalid bandwidth\n", __func__);
+                buf[1] |= (2 << 2); /* cannot auto-detect BW, try 8 MHz */
         }
 
         /* program */
diff --git a/drivers/media/dvb/ttpci/Kconfig b/drivers/media/dvb/ttpci/Kconfig
index 68eb4493f991..d8d4214fd65f 100644
--- a/drivers/media/dvb/ttpci/Kconfig
+++ b/drivers/media/dvb/ttpci/Kconfig
@@ -1,5 +1,6 @@
 config TTPCI_EEPROM
         tristate
+        depends on I2C
         default n
 
 config DVB_AV7110
diff --git a/drivers/media/dvb/ttpci/av7110.c b/drivers/media/dvb/ttpci/av7110.c
index d1d959ed37b7..8d65c652ba50 100644
--- a/drivers/media/dvb/ttpci/av7110.c
+++ b/drivers/media/dvb/ttpci/av7110.c
@@ -36,7 +36,6 @@
 #include <linux/fs.h>
 #include <linux/timer.h>
 #include <linux/poll.h>
-#include <linux/smp_lock.h>
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
diff --git a/drivers/media/radio/radio-mr800.c b/drivers/media/radio/radio-mr800.c
index 837467f93805..575bf9d89419 100644
--- a/drivers/media/radio/radio-mr800.c
+++ b/drivers/media/radio/radio-mr800.c
@@ -58,6 +58,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/input.h>
 #include <linux/videodev2.h>
 #include <media/v4l2-device.h>
diff --git a/drivers/media/radio/radio-si470x.c b/drivers/media/radio/radio-si470x.c
index 640421ceb24a..e85f318b4d2b 100644
--- a/drivers/media/radio/radio-si470x.c
+++ b/drivers/media/radio/radio-si470x.c
@@ -127,6 +127,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/input.h>
 #include <linux/usb.h>
 #include <linux/hid.h>
@@ -1200,7 +1201,7 @@ static int si470x_fops_release(struct file *file)
                         video_unregister_device(radio->videodev);
                         kfree(radio->buffer);
                         kfree(radio);
-                        goto done;
+                        goto unlock;
                 }
 
                 /* stop rds reception */
@@ -1213,9 +1214,8 @@ static int si470x_fops_release(struct file *file)
                 retval = si470x_stop(radio);
                 usb_autopm_put_interface(radio->intf);
         }
-
+unlock:
         mutex_unlock(&radio->disconnect_lock);
-
 done:
         return retval;
 }
diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig
index 061e147f6f26..84b6fc15519d 100644
--- a/drivers/media/video/Kconfig
+++ b/drivers/media/video/Kconfig
@@ -312,6 +312,14 @@ config VIDEO_OV7670
           OV7670 VGA camera.  It currently only works with the M88ALP01
           controller.
 
+config VIDEO_MT9V011
+        tristate "Micron mt9v011 sensor support"
+        depends on I2C && VIDEO_V4L2
+        ---help---
+          This is a Video4Linux2 sensor-level driver for the Micron
+          mt0v011 1.3 Mpixel camera.  It currently only works with the
+          em28xx driver.
+
 config VIDEO_TCM825X
         tristate "TCM825x camera sensor support"
         depends on I2C && VIDEO_V4L2
diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile
index 7fb3add1b387..9f2e3214a482 100644
--- a/drivers/media/video/Makefile
+++ b/drivers/media/video/Makefile
@@ -69,6 +69,7 @@ obj-$(CONFIG_VIDEO_UPD64083) += upd64083.o
 obj-$(CONFIG_VIDEO_OV7670)      += ov7670.o
 obj-$(CONFIG_VIDEO_TCM825X) += tcm825x.o
 obj-$(CONFIG_VIDEO_TVEEPROM) += tveeprom.o
+obj-$(CONFIG_VIDEO_MT9V011) += mt9v011.o
 
 obj-$(CONFIG_SOC_CAMERA_MT9M001)        += mt9m001.o
 obj-$(CONFIG_SOC_CAMERA_MT9M111)        += mt9m111.o
diff --git a/drivers/media/video/bt8xx/bttv-cards.c b/drivers/media/video/bt8xx/bttv-cards.c
index fdb4adff3d28..ca6558c394be 100644
--- a/drivers/media/video/bt8xx/bttv-cards.c
+++ b/drivers/media/video/bt8xx/bttv-cards.c
@@ -3324,8 +3324,6 @@ void __devinit bttv_init_card1(struct bttv *btv)
 /* initialization part two -- after registering i2c bus */
 void __devinit bttv_init_card2(struct bttv *btv)
 {
-        int addr=ADDR_UNSET;
-
         btv->tuner_type = UNSET;
 
         if (BTTV_BOARD_UNKNOWN == btv->c.type) {
@@ -3470,9 +3468,6 @@ void __devinit bttv_init_card2(struct bttv *btv)
         btv->pll.pll_current = -1;
 
         /* tuner configuration (from card list / autodetect / insmod option) */
-        if (ADDR_UNSET != bttv_tvcards[btv->c.type].tuner_addr)
-                addr = bttv_tvcards[btv->c.type].tuner_addr;
-
         if (UNSET != bttv_tvcards[btv->c.type].tuner_type)
                 if (UNSET == btv->tuner_type)
                         btv->tuner_type = bttv_tvcards[btv->c.type].tuner_type;
@@ -3496,40 +3491,6 @@ void __devinit bttv_init_card2(struct bttv *btv)
         if (UNSET == btv->tuner_type)
                 btv->tuner_type = TUNER_ABSENT;
 
-        if (btv->tuner_type != TUNER_ABSENT) {
-                struct tuner_setup tun_setup;
-
-                /* Load tuner module before issuing tuner config call! */
-                if (bttv_tvcards[btv->c.type].has_radio)
-                        v4l2_i2c_new_probed_subdev(&btv->c.v4l2_dev,
-                                &btv->c.i2c_adap, "tuner", "tuner",
-                                v4l2_i2c_tuner_addrs(ADDRS_RADIO));
-                v4l2_i2c_new_probed_subdev(&btv->c.v4l2_dev,
-                                &btv->c.i2c_adap, "tuner", "tuner",
-                                v4l2_i2c_tuner_addrs(ADDRS_DEMOD));
-                v4l2_i2c_new_probed_subdev(&btv->c.v4l2_dev,
-                                &btv->c.i2c_adap, "tuner", "tuner",
-                                v4l2_i2c_tuner_addrs(ADDRS_TV_WITH_DEMOD));
-
-                tun_setup.mode_mask = T_ANALOG_TV | T_DIGITAL_TV;
-                tun_setup.type = btv->tuner_type;
-                tun_setup.addr = addr;
-
-                if (bttv_tvcards[btv->c.type].has_radio)
-                        tun_setup.mode_mask |= T_RADIO;
-
-                bttv_call_all(btv, tuner, s_type_addr, &tun_setup);
-        }
-
-        if (btv->tda9887_conf) {
-                struct v4l2_priv_tun_config tda9887_cfg;
-
-                tda9887_cfg.tuner = TUNER_TDA9887;
-                tda9887_cfg.priv = &btv->tda9887_conf;
-
-                bttv_call_all(btv, tuner, s_config, &tda9887_cfg);
-        }
-
         btv->dig = bttv_tvcards[btv->c.type].has_dig_in ?
                    bttv_tvcards[btv->c.type].video_inputs - 1 : UNSET;
         btv->svhs = bttv_tvcards[btv->c.type].svhs == NO_SVHS ?
@@ -3540,15 +3501,15 @@ void __devinit bttv_init_card2(struct bttv *btv)
                 btv->has_remote = remote[btv->c.nr];
 
         if (bttv_tvcards[btv->c.type].has_radio)
-                btv->has_radio=1;
+                btv->has_radio = 1;
         if (bttv_tvcards[btv->c.type].has_remote)
-                btv->has_remote=1;
+                btv->has_remote = 1;
         if (!bttv_tvcards[btv->c.type].no_gpioirq)
-                btv->gpioirq=1;
+                btv->gpioirq = 1;
         if (bttv_tvcards[btv->c.type].volume_gpio)
-                btv->volume_gpio=bttv_tvcards[btv->c.type].volume_gpio;
+                btv->volume_gpio = bttv_tvcards[btv->c.type].volume_gpio;
         if (bttv_tvcards[btv->c.type].audio_mode_gpio)
-                btv->audio_mode_gpio=bttv_tvcards[btv->c.type].audio_mode_gpio;
+                btv->audio_mode_gpio = bttv_tvcards[btv->c.type].audio_mode_gpio;
 
         if (btv->tuner_type == TUNER_ABSENT)
                 return;  /* no tuner or related drivers to load */
@@ -3666,6 +3627,49 @@ no_audio:
 }
 
 
+/* initialize the tuner */
+void __devinit bttv_init_tuner(struct bttv *btv)
+{
+        int addr = ADDR_UNSET;
+
+        if (ADDR_UNSET != bttv_tvcards[btv->c.type].tuner_addr)
+                addr = bttv_tvcards[btv->c.type].tuner_addr;
+
+        if (btv->tuner_type != TUNER_ABSENT) {
+                struct tuner_setup tun_setup;
+
+                /* Load tuner module before issuing tuner config call! */
+                if (bttv_tvcards[btv->c.type].has_radio)
+                        v4l2_i2c_new_probed_subdev(&btv->c.v4l2_dev,
+                                &btv->c.i2c_adap, "tuner", "tuner",
+                                v4l2_i2c_tuner_addrs(ADDRS_RADIO));
+                v4l2_i2c_new_probed_subdev(&btv->c.v4l2_dev,
+                                &btv->c.i2c_adap, "tuner", "tuner",
+                                v4l2_i2c_tuner_addrs(ADDRS_DEMOD));
+                v4l2_i2c_new_probed_subdev(&btv->c.v4l2_dev,
+                                &btv->c.i2c_adap, "tuner", "tuner",
+                                v4l2_i2c_tuner_addrs(ADDRS_TV_WITH_DEMOD));
+
+                tun_setup.mode_mask = T_ANALOG_TV | T_DIGITAL_TV;
+                tun_setup.type = btv->tuner_type;
+                tun_setup.addr = addr;
+
+                if (bttv_tvcards[btv->c.type].has_radio)
+                        tun_setup.mode_mask |= T_RADIO;
+
+                bttv_call_all(btv, tuner, s_type_addr, &tun_setup);
+        }
+
+        if (btv->tda9887_conf) {
+                struct v4l2_priv_tun_config tda9887_cfg;
+
+                tda9887_cfg.tuner = TUNER_TDA9887;
+                tda9887_cfg.priv = &btv->tda9887_conf;
+
+                bttv_call_all(btv, tuner, s_config, &tda9887_cfg);
+        }
+}
+
 /* ----------------------------------------------------------------------- */
 
 static void modtec_eeprom(struct bttv *btv)
diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c
index 5eb1464af670..8cc6dd28d6a7 100644
--- a/drivers/media/video/bt8xx/bttv-driver.c
+++ b/drivers/media/video/bt8xx/bttv-driver.c
@@ -41,6 +41,7 @@
 #include <linux/fs.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/smp_lock.h>
 #include <linux/interrupt.h>
 #include <linux/kdev_t.h>
 #include "bttvp.h"
@@ -4418,6 +4419,7 @@ static int __devinit bttv_probe(struct pci_dev *dev,
 
         /* some card-specific stuff (needs working i2c) */
         bttv_init_card2(btv);
+        bttv_init_tuner(btv);
         init_irqreg(btv);
 
         /* register video4linux + input */
diff --git a/drivers/media/video/bt8xx/bttv.h b/drivers/media/video/bt8xx/bttv.h
index 3d36daf206f3..3ec2402c6b4a 100644
--- a/drivers/media/video/bt8xx/bttv.h
+++ b/drivers/media/video/bt8xx/bttv.h
@@ -283,6 +283,7 @@ extern struct tvcard bttv_tvcards[];
 extern void bttv_idcard(struct bttv *btv);
 extern void bttv_init_card1(struct bttv *btv);
 extern void bttv_init_card2(struct bttv *btv);
+extern void bttv_init_tuner(struct bttv *btv);
 
 /* card-specific funtions */
 extern void tea5757_set_freq(struct bttv *btv, unsigned short freq);
diff --git a/drivers/media/video/cx18/cx18-cards.c b/drivers/media/video/cx18/cx18-cards.c
index c92a25036f0e..36f2d76006fd 100644
--- a/drivers/media/video/cx18/cx18-cards.c
+++ b/drivers/media/video/cx18/cx18-cards.c
@@ -198,11 +198,14 @@ static const struct cx18_card_pci_info cx18_pci_mpc718[] = {
 
 static const struct cx18_card cx18_card_mpc718 = {
         .type = CX18_CARD_YUAN_MPC718,
-        .name = "Yuan MPC718",
-        .comment = "Analog video capture works; some audio line in may not.\n",
+        .name = "Yuan MPC718 MiniPCI DVB-T/Analog",
+        .comment = "Experimenters needed for device to work well.\n"
+                  "\tTo help, mail the ivtv-devel list (www.ivtvdriver.org).\n",
         .v4l2_capabilities = CX18_CAP_ENCODER,
         .hw_audio_ctrl = CX18_HW_418_AV,
-        .hw_all = CX18_HW_418_AV | CX18_HW_TUNER | CX18_HW_GPIO_RESET_CTRL,
+        .hw_muxer = CX18_HW_GPIO_MUX,
+        .hw_all = CX18_HW_418_AV | CX18_HW_TUNER |
+                  CX18_HW_GPIO_MUX | CX18_HW_DVB | CX18_HW_GPIO_RESET_CTRL,
         .video_inputs = {
                 { CX18_CARD_INPUT_VID_TUNER,  0, CX18_AV_COMPOSITE2 },
                 { CX18_CARD_INPUT_SVIDEO1,    1,
@@ -211,27 +214,34 @@ static const struct cx18_card cx18_card_mpc718 = {
                 { CX18_CARD_INPUT_SVIDEO2,    2,
                                 CX18_AV_SVIDEO_LUMA7 | CX18_AV_SVIDEO_CHROMA8 },
                 { CX18_CARD_INPUT_COMPOSITE2, 2, CX18_AV_COMPOSITE6 },
-                { CX18_CARD_INPUT_COMPOSITE3, 2, CX18_AV_COMPOSITE3 },
         },
         .audio_inputs = {
                 { CX18_CARD_INPUT_AUD_TUNER, CX18_AV_AUDIO5,        0 },
-                { CX18_CARD_INPUT_LINE_IN1,  CX18_AV_AUDIO_SERIAL1, 0 },
-                { CX18_CARD_INPUT_LINE_IN2,  CX18_AV_AUDIO_SERIAL1, 0 },
+                { CX18_CARD_INPUT_LINE_IN1,  CX18_AV_AUDIO_SERIAL1, 1 },
+                { CX18_CARD_INPUT_LINE_IN2,  CX18_AV_AUDIO_SERIAL2, 1 },
         },
-        .radio_input = { CX18_CARD_INPUT_AUD_TUNER, CX18_AV_AUDIO_SERIAL1, 0 },
         .tuners = {
                 /* XC3028 tuner */
                 { .std = V4L2_STD_ALL, .tuner = TUNER_XC2028 },
         },
+        /* FIXME - the FM radio is just a guess and driver doesn't use SIF */
+        .radio_input = { CX18_CARD_INPUT_AUD_TUNER, CX18_AV_AUDIO5, 2 },
         .ddr = {
-                /* Probably Samsung K4D263238G-VC33 memory */
-                .chip_config = 0x003,
-                .refresh = 0x30c,
-                .timing1 = 0x23230b73,
-                .timing2 = 0x08,
+                /* Hynix HY5DU283222B DDR RAM */
+                .chip_config = 0x303,
+                .refresh = 0x3bd,
+                .timing1 = 0x36320966,
+                .timing2 = 0x1f,
                 .tune_lane = 0,
                 .initial_emrs = 2,
         },
+        .gpio_init.initial_value = 0x1,
+        .gpio_init.direction = 0x3,
+        /* FIXME - these GPIO's are just guesses */
+        .gpio_audio_input = { .mask   = 0x3,
+                              .tuner  = 0x1,
+                              .linein = 0x3,
+                              .radio  = 0x1 },
         .xceive_pin = 0,
         .pci_list = cx18_pci_mpc718,
         .i2c = &cx18_i2c_std,
diff --git a/drivers/media/video/cx18/cx18-dvb.c b/drivers/media/video/cx18/cx18-dvb.c
index 6ea3fe623ef4..51a0c33b25b7 100644
--- a/drivers/media/video/cx18/cx18-dvb.c
+++ b/drivers/media/video/cx18/cx18-dvb.c
@@ -30,6 +30,10 @@
 #include "s5h1409.h"
 #include "mxl5005s.h"
 #include "zl10353.h"
+
+#include <linux/firmware.h>
+#include "mt352.h"
+#include "mt352_priv.h"
 #include "tuner-xc2028.h"
 
 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
@@ -38,6 +42,11 @@ DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
 #define CX18_CLOCK_ENABLE2               0xc71024
 #define CX18_DMUX_CLK_MASK               0x0080
 
+/*
+ * CX18_CARD_HVR_1600_ESMT
+ * CX18_CARD_HVR_1600_SAMSUNG
+ */
+
 static struct mxl5005s_config hauppauge_hvr1600_tuner = {
         .i2c_address     = 0xC6 >> 1,
         .if_freq         = IF_FREQ_5380000HZ,
@@ -65,6 +74,9 @@ static struct s5h1409_config hauppauge_hvr1600_config = {
         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
 };
 
+/*
+ * CX18_CARD_LEADTEK_DVR3100H
+ */
 /* Information/confirmation of proper config values provided by Terry Wu */
 static struct zl10353_config leadtek_dvr3100h_demod = {
         .demod_address         = 0x1e >> 1, /* Datasheet suggested straps */
@@ -74,6 +86,121 @@ static struct zl10353_config leadtek_dvr3100h_demod = {
         .disable_i2c_gate_ctrl = 1,         /* Disable the I2C gate */
 };
 
+/*
+ * CX18_CARD_YUAN_MPC718
+ */
+/*
+ * Due to
+ *
+ * 1. an absence of information on how to prgram the MT352
+ * 2. the Linux mt352 module pushing MT352 initialzation off onto us here
+ *
+ * We have to use an init sequence that *you* must extract from the Windows
+ * driver (yuanrap.sys) and which we load as a firmware.
+ *
+ * If someone can provide me with a Zarlink MT352 (Intel CE6352?) Design Manual
+ * with chip programming details, then I can remove this annoyance.
+ */
+static int yuan_mpc718_mt352_reqfw(struct cx18_stream *stream,
+                                   const struct firmware **fw)
+{
+        struct cx18 *cx = stream->cx;
+        const char *fn = "dvb-cx18-mpc718-mt352.fw";
+        int ret;
+
+        ret = request_firmware(fw, fn, &cx->pci_dev->dev);
+        if (ret)
+                CX18_ERR("Unable to open firmware file %s\n", fn);
+        else {
+                size_t sz = (*fw)->size;
+                if (sz < 2 || sz > 64 || (sz % 2) != 0) {
+                        CX18_ERR("Firmware %s has a bad size: %lu bytes\n",
+                                 fn, (unsigned long) sz);
+                        ret = -EILSEQ;
+                        release_firmware(*fw);
+                        *fw = NULL;
+                }
+        }
+
+        if (ret) {
+                CX18_ERR("The MPC718 board variant with the MT352 DVB-T"
+                          "demodualtor will not work without it\n");
+                CX18_ERR("Run 'linux/Documentation/dvb/get_dvb_firmware "
+                          "mpc718' if you need the firmware\n");
+        }
+        return ret;
+}
+
+static int yuan_mpc718_mt352_init(struct dvb_frontend *fe)
+{
+        struct cx18_dvb *dvb = container_of(fe->dvb,
+                                            struct cx18_dvb, dvb_adapter);
+        struct cx18_stream *stream = container_of(dvb, struct cx18_stream, dvb);
+        const struct firmware *fw = NULL;
+        int ret;
+        int i;
+        u8 buf[3];
+
+        ret = yuan_mpc718_mt352_reqfw(stream, &fw);
+        if (ret)
+                return ret;
+
+        /* Loop through all the register-value pairs in the firmware file */
+        for (i = 0; i < fw->size; i += 2) {
+                buf[0] = fw->data[i];
+                /* Intercept a few registers we want to set ourselves */
+                switch (buf[0]) {
+                case TRL_NOMINAL_RATE_0:
+                        /* Set our custom OFDM bandwidth in the case below */
+                        break;
+                case TRL_NOMINAL_RATE_1:
+                        /* 6 MHz: 64/7 * 6/8 / 20.48 * 2^16 = 0x55b6.db6 */
+                        /* 7 MHz: 64/7 * 7/8 / 20.48 * 2^16 = 0x6400 */
+                        /* 8 MHz: 64/7 * 8/8 / 20.48 * 2^16 = 0x7249.249 */
+                        buf[1] = 0x72;
+                        buf[2] = 0x49;
+                        mt352_write(fe, buf, 3);
+                        break;
+                case INPUT_FREQ_0:
+                        /* Set our custom IF in the case below */
+                        break;
+                case INPUT_FREQ_1:
+                        /* 4.56 MHz IF: (20.48 - 4.56)/20.48 * 2^14 = 0x31c0 */
+                        buf[1] = 0x31;
+                        buf[2] = 0xc0;
+                        mt352_write(fe, buf, 3);
+                        break;
+                default:
+                        /* Pass through the register-value pair from the fw */
+                        buf[1] = fw->data[i+1];
+                        mt352_write(fe, buf, 2);
+                        break;
+                }
+        }
+
+        buf[0] = (u8) TUNER_GO;
+        buf[1] = 0x01; /* Go */
+        mt352_write(fe, buf, 2);
+        release_firmware(fw);
+        return 0;
+}
+
+static struct mt352_config yuan_mpc718_mt352_demod = {
+        .demod_address = 0x1e >> 1,
+        .adc_clock     = 20480,     /* 20.480 MHz */
+        .if2           =  4560,     /*  4.560 MHz */
+        .no_tuner      = 1,         /* XC3028 is not behind the gate */
+        .demod_init    = yuan_mpc718_mt352_init,
+};
+
+static struct zl10353_config yuan_mpc718_zl10353_demod = {
+        .demod_address         = 0x1e >> 1, /* Datasheet suggested straps */
+        .if2                   = 45600,     /* 4.560 MHz IF from the XC3028 */
+        .parallel_ts           = 1,         /* Not a serial TS */
+        .no_tuner              = 1,         /* XC3028 is not behind the gate */
+        .disable_i2c_gate_ctrl = 1,         /* Disable the I2C gate */
+};
+
 static int dvb_register(struct cx18_stream *stream);
 
 /* Kernel DVB framework calls this when the feed needs to start.
@@ -113,6 +240,7 @@ static int cx18_dvb_start_feed(struct dvb_demux_feed *feed)
                 break;
 
         case CX18_CARD_LEADTEK_DVR3100H:
+        case CX18_CARD_YUAN_MPC718:
         default:
                 /* Assumption - Parallel transport - Signalling
                  * undefined or default.
@@ -326,6 +454,38 @@ static int dvb_register(struct cx18_stream *stream)
                                 fe->ops.tuner_ops.set_config(fe, &ctrl);
                 }
                 break;
+        case CX18_CARD_YUAN_MPC718:
+                /*
+                 * TODO
+                 * Apparently, these cards also could instead have a
+                 * DiBcom demod supported by one of the db7000 drivers
+                 */
+                dvb->fe = dvb_attach(mt352_attach,
+                                     &yuan_mpc718_mt352_demod,
+                                     &cx->i2c_adap[1]);
+                if (dvb->fe == NULL)
+                        dvb->fe = dvb_attach(zl10353_attach,
+                                             &yuan_mpc718_zl10353_demod,
+                                             &cx->i2c_adap[1]);
+                if (dvb->fe != NULL) {
+                        struct dvb_frontend *fe;
+                        struct xc2028_config cfg = {
+                                .i2c_adap = &cx->i2c_adap[1],
+                                .i2c_addr = 0xc2 >> 1,
+                                .ctrl = NULL,
+                        };
+                        static struct xc2028_ctrl ctrl = {
+                                .fname   = XC2028_DEFAULT_FIRMWARE,
+                                .max_len = 64,
+                                .demod   = XC3028_FE_ZARLINK456,
+                                .type    = XC2028_AUTO,
+                        };
+
+                        fe = dvb_attach(xc2028_attach, dvb->fe, &cfg);
+                        if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
+                                fe->ops.tuner_ops.set_config(fe, &ctrl);
+                }
+                break;
         default:
                 /* No Digital Tv Support */
                 break;
diff --git a/drivers/media/video/cx23885/cx23885-417.c b/drivers/media/video/cx23885/cx23885-417.c
index 2943bfd32a94..e0cf21e0b1bf 100644
--- a/drivers/media/video/cx23885/cx23885-417.c
+++ b/drivers/media/video/cx23885/cx23885-417.c
@@ -31,6 +31,7 @@
 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/firmware.h>
+#include <linux/smp_lock.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
 #include <media/cx2341x.h>
@@ -57,7 +58,8 @@ MODULE_PARM_DESC(v4l_debug, "enable V4L debug messages");
 
 #define dprintk(level, fmt, arg...)\
         do { if (v4l_debug >= level) \
-                printk(KERN_DEBUG "%s: " fmt, dev->name , ## arg);\
+                printk(KERN_DEBUG "%s: " fmt, \
+                (dev) ? dev->name : "cx23885[?]", ## arg); \
         } while (0)
 
 static struct cx23885_tvnorm cx23885_tvnorms[] = {
@@ -1676,6 +1678,7 @@ static struct v4l2_file_operations mpeg_fops = {
         .read          = mpeg_read,
         .poll          = mpeg_poll,
         .mmap          = mpeg_mmap,
+        .ioctl         = video_ioctl2,
 };
 
 static const struct v4l2_ioctl_ops mpeg_ioctl_ops = {
diff --git a/drivers/media/video/cx23885/cx23885-dvb.c b/drivers/media/video/cx23885/cx23885-dvb.c
index 48a975134ac5..86ac529e62be 100644
--- a/drivers/media/video/cx23885/cx23885-dvb.c
+++ b/drivers/media/video/cx23885/cx23885-dvb.c
@@ -463,6 +463,30 @@ static struct xc5000_config mygica_x8506_xc5000_config = {
         .if_khz = 5380,
 };
 
+static int cx23885_dvb_set_frontend(struct dvb_frontend *fe,
+                                    struct dvb_frontend_parameters *param)
+{
+        struct cx23885_tsport *port = fe->dvb->priv;
+        struct cx23885_dev *dev = port->dev;
+
+        switch (dev->board) {
+        case CX23885_BOARD_HAUPPAUGE_HVR1275:
+                switch (param->u.vsb.modulation) {
+                case VSB_8:
+                        cx23885_gpio_clear(dev, GPIO_5);
+                        break;
+                case QAM_64:
+                case QAM_256:
+                default:
+                        cx23885_gpio_set(dev, GPIO_5);
+                        break;
+                }
+                break;
+        }
+        return (port->set_frontend_save) ?
+                port->set_frontend_save(fe, param) : -ENODEV;
+}
+
 static int dvb_register(struct cx23885_tsport *port)
 {
         struct cx23885_dev *dev = port->dev;
@@ -502,6 +526,12 @@ static int dvb_register(struct cx23885_tsport *port)
                                    0x60, &dev->i2c_bus[1].i2c_adap,
                                    &hauppauge_hvr127x_config);
                 }
+
+                /* FIXME: temporary hack */
+                /* define bridge override to set_frontend */
+                port->set_frontend_save = fe0->dvb.frontend->ops.set_frontend;
+                fe0->dvb.frontend->ops.set_frontend = cx23885_dvb_set_frontend;
+
                 break;
         case CX23885_BOARD_HAUPPAUGE_HVR1255:
                 i2c_bus = &dev->i2c_bus[0];
diff --git a/drivers/media/video/cx23885/cx23885-video.c b/drivers/media/video/cx23885/cx23885-video.c
index 70836af3ab48..5d6093336300 100644
--- a/drivers/media/video/cx23885/cx23885-video.c
+++ b/drivers/media/video/cx23885/cx23885-video.c
@@ -26,6 +26,7 @@
 #include <linux/kmod.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 #include <linux/kthread.h>
diff --git a/drivers/media/video/cx23885/cx23885.h b/drivers/media/video/cx23885/cx23885.h
index 1a2ac518a3f1..214a55e943b7 100644
--- a/drivers/media/video/cx23885/cx23885.h
+++ b/drivers/media/video/cx23885/cx23885.h
@@ -288,6 +288,10 @@ struct cx23885_tsport {
         /* Allow a single tsport to have multiple frontends */
         u32                        num_frontends;
         void                       *port_priv;
+
+        /* FIXME: temporary hack */
+        int (*set_frontend_save) (struct dvb_frontend *,
+                                  struct dvb_frontend_parameters *);
 };
 
 struct cx23885_dev {
diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c
index 44eacfb0d0d6..356d6896da3f 100644
--- a/drivers/media/video/cx88/cx88-blackbird.c
+++ b/drivers/media/video/cx88/cx88-blackbird.c
@@ -32,6 +32,7 @@
 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/firmware.h>
+#include <linux/smp_lock.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
 #include <media/cx2341x.h>
diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c
index b12770848c00..2bb54c3ef5cd 100644
--- a/drivers/media/video/cx88/cx88-video.c
+++ b/drivers/media/video/cx88/cx88-video.c
@@ -31,6 +31,7 @@
 #include <linux/kmod.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/interrupt.h>
 #include <linux/dma-mapping.h>
 #include <linux/delay.h>
diff --git a/drivers/media/video/dabusb.c b/drivers/media/video/dabusb.c
index ec2f45dde164..0664d111085f 100644
--- a/drivers/media/video/dabusb.c
+++ b/drivers/media/video/dabusb.c
@@ -32,6 +32,7 @@
 #include <linux/list.h>
 #include <linux/vmalloc.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/init.h>
 #include <asm/uaccess.h>
 #include <asm/atomic.h>
diff --git a/drivers/media/video/em28xx/Kconfig b/drivers/media/video/em28xx/Kconfig
index 16a5af30e9d1..6524b493e033 100644
--- a/drivers/media/video/em28xx/Kconfig
+++ b/drivers/media/video/em28xx/Kconfig
@@ -8,6 +8,8 @@ config VIDEO_EM28XX
         select VIDEO_SAA711X if VIDEO_HELPER_CHIPS_AUTO
         select VIDEO_TVP5150 if VIDEO_HELPER_CHIPS_AUTO
         select VIDEO_MSP3400 if VIDEO_HELPER_CHIPS_AUTO
+        select VIDEO_MT9V011 if VIDEO_HELPER_CHIPS_AUTO
+
         ---help---
           This is a video4linux driver for Empia 28xx based TV cards.
 
diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c
index c43fdb9bc888..320f1f60276e 100644
--- a/drivers/media/video/em28xx/em28xx-cards.c
+++ b/drivers/media/video/em28xx/em28xx-cards.c
@@ -157,6 +157,20 @@ static struct em28xx_reg_seq evga_indtube_digital[] = {
         { -1,                   -1,     -1,             -1},
 };
 
+/* Pinnacle Hybrid Pro eb1a:2881 */
+static struct em28xx_reg_seq pinnacle_hybrid_pro_analog[] = {
+        {EM28XX_R08_GPIO,       0xfd,   ~EM_GPIO_4,     10},
+        {       -1,             -1,     -1,             -1},
+};
+
+static struct em28xx_reg_seq pinnacle_hybrid_pro_digital[] = {
+        {EM28XX_R08_GPIO,       0x6e,   ~EM_GPIO_4,     10},
+        {EM2880_R04_GPO,        0x04,   0xff,          100},/* zl10353 reset */
+        {EM2880_R04_GPO,        0x0c,   0xff,            1},
+        {       -1,             -1,     -1,             -1},
+};
+
+
 /* Callback for the most boards */
 static struct em28xx_reg_seq default_tuner_gpio[] = {
         {EM28XX_R08_GPIO,       EM_GPIO_4,      EM_GPIO_4,      10},
@@ -191,18 +205,27 @@ static struct em28xx_reg_seq terratec_av350_unmute_gpio[] = {
         {EM28XX_R08_GPIO,       0xff,   0xff,           10},
         {       -1,             -1,     -1,             -1},
 };
+
+static struct em28xx_reg_seq silvercrest_reg_seq[] = {
+        {EM28XX_R08_GPIO,       0xff,   0xff,           10},
+        {EM28XX_R08_GPIO,       0x01,   0xf7,           10},
+        {       -1,             -1,     -1,             -1},
+};
+
 /*
  *  Board definitions
  */
 struct em28xx_board em28xx_boards[] = {
         [EM2750_BOARD_UNKNOWN] = {
-                .name          = "Unknown EM2750/EM2751 webcam grabber",
+                .name          = "EM2710/EM2750/EM2751 webcam grabber",
                 .xclk          = EM28XX_XCLK_FREQUENCY_48MHZ,
-                .tuner_type    = TUNER_ABSENT,  /* This is a webcam */
+                .tuner_type    = TUNER_ABSENT,
+                .is_webcam     = 1,
                 .input         = { {
                         .type     = EM28XX_VMUX_COMPOSITE1,
                         .vmux     = 0,
                         .amux     = EM28XX_AMUX_VIDEO,
+                        .gpio     = silvercrest_reg_seq,
                 } },
         },
         [EM2800_BOARD_UNKNOWN] = {
@@ -224,13 +247,15 @@ struct em28xx_board em28xx_boards[] = {
         [EM2820_BOARD_UNKNOWN] = {
                 .name          = "Unknown EM2750/28xx video grabber",
                 .tuner_type    = TUNER_ABSENT,
+                .is_webcam     = 1,     /* To enable sensor probe */
         },
         [EM2750_BOARD_DLCW_130] = {
                 /* Beijing Huaqi Information Digital Technology Co., Ltd */
                 .name          = "Huaqi DLCW-130",
                 .valid         = EM28XX_BOARD_NOT_VALIDATED,
                 .xclk          = EM28XX_XCLK_FREQUENCY_48MHZ,
-                .tuner_type    = TUNER_ABSENT,  /* This is a webcam */
+                .tuner_type    = TUNER_ABSENT,
+                .is_webcam     = 1,
                 .input         = { {
                         .type     = EM28XX_VMUX_COMPOSITE1,
                         .vmux     = 0,
@@ -431,13 +456,25 @@ struct em28xx_board em28xx_boards[] = {
         [EM2820_BOARD_VIDEOLOGY_20K14XUSB] = {
                 .name         = "Videology 20K14XUSB USB2.0",
                 .valid        = EM28XX_BOARD_NOT_VALIDATED,
-                .tuner_type   = TUNER_ABSENT,   /* This is a webcam */
+                .tuner_type   = TUNER_ABSENT,
+                .is_webcam    = 1,
                 .input        = { {
                         .type     = EM28XX_VMUX_COMPOSITE1,
                         .vmux     = 0,
                         .amux     = EM28XX_AMUX_VIDEO,
                 } },
         },
+        [EM2820_BOARD_SILVERCREST_WEBCAM] = {
+                .name         = "Silvercrest Webcam 1.3mpix",
+                .tuner_type   = TUNER_ABSENT,
+                .is_webcam    = 1,
+                .input        = { {
+                        .type     = EM28XX_VMUX_COMPOSITE1,
+                        .vmux     = 0,
+                        .amux     = EM28XX_AMUX_VIDEO,
+                        .gpio     = silvercrest_reg_seq,
+                } },
+        },
         [EM2821_BOARD_SUPERCOMP_USB_2] = {
                 .name         = "Supercomp USB 2.0 TV",
                 .valid        = EM28XX_BOARD_NOT_VALIDATED,
@@ -479,7 +516,8 @@ struct em28xx_board em28xx_boards[] = {
                 /* Beijing Huaqi Information Digital Technology Co., Ltd */
                 .name         = "NetGMBH Cam",
                 .valid        = EM28XX_BOARD_NOT_VALIDATED,
-                .tuner_type   = TUNER_ABSENT,   /* This is a webcam */
+                .tuner_type   = TUNER_ABSENT,
+                .is_webcam    = 1,
                 .input        = { {
                         .type     = EM28XX_VMUX_COMPOSITE1,
                         .vmux     = 0,
@@ -826,7 +864,7 @@ struct em28xx_board em28xx_boards[] = {
                 .tuner_gpio     = default_tuner_gpio,
                 .decoder        = EM28XX_TVP5150,
                 .has_dvb        = 1,
-                .dvb_gpio       = default_analog,
+                .dvb_gpio       = default_digital,
                 .input          = { {
                         .type     = EM28XX_VMUX_TELEVISION,
                         .vmux     = TVP5150_COMPOSITE0,
@@ -1229,25 +1267,26 @@ struct em28xx_board em28xx_boards[] = {
         },
         [EM2881_BOARD_PINNACLE_HYBRID_PRO] = {
                 .name         = "Pinnacle Hybrid Pro",
-                .valid        = EM28XX_BOARD_NOT_VALIDATED,
                 .tuner_type   = TUNER_XC2028,
                 .tuner_gpio   = default_tuner_gpio,
                 .decoder      = EM28XX_TVP5150,
+                .has_dvb      = 1,
+                .dvb_gpio     = pinnacle_hybrid_pro_digital,
                 .input        = { {
                         .type     = EM28XX_VMUX_TELEVISION,
                         .vmux     = TVP5150_COMPOSITE0,
                         .amux     = EM28XX_AMUX_VIDEO,
-                        .gpio     = default_analog,
+                        .gpio     = pinnacle_hybrid_pro_analog,
                 }, {
                         .type     = EM28XX_VMUX_COMPOSITE1,
                         .vmux     = TVP5150_COMPOSITE1,
                         .amux     = EM28XX_AMUX_LINE_IN,
-                        .gpio     = default_analog,
+                        .gpio     = pinnacle_hybrid_pro_analog,
                 }, {
                         .type     = EM28XX_VMUX_SVIDEO,
                         .vmux     = TVP5150_SVIDEO,
                         .amux     = EM28XX_AMUX_LINE_IN,
-                        .gpio     = default_analog,
+                        .gpio     = pinnacle_hybrid_pro_analog,
                 } },
         },
         [EM2882_BOARD_PINNACLE_HYBRID_PRO] = {
@@ -1617,6 +1656,7 @@ static struct em28xx_hash_table em28xx_eeprom_hash[] = {
         {0x966a0441, EM2880_BOARD_KWORLD_DVB_310U, TUNER_XC2028},
         {0x9567eb1a, EM2880_BOARD_EMPIRE_DUAL_TV, TUNER_XC2028},
         {0xcee44a99, EM2882_BOARD_EVGA_INDTUBE, TUNER_XC2028},
+        {0xb8846b20, EM2881_BOARD_PINNACLE_HYBRID_PRO, TUNER_XC2028},
 };
 
 /* I2C devicelist hash table for devices with generic USB IDs */
@@ -1639,6 +1679,11 @@ static unsigned short tvp5150_addrs[] = {
         I2C_CLIENT_END
 };
 
+static unsigned short mt9v011_addrs[] = {
+        0xba >> 1,
+        I2C_CLIENT_END
+};
+
 static unsigned short msp3400_addrs[] = {
         0x80 >> 1,
         0x88 >> 1,
@@ -1678,6 +1723,91 @@ static inline void em28xx_set_model(struct em28xx *dev)
                                        EM28XX_I2C_FREQ_100_KHZ;
 }
 
+/* FIXME: Should be replaced by a proper mt9m001 driver */
+static int em28xx_initialize_mt9m001(struct em28xx *dev)
+{
+        int i;
+        unsigned char regs[][3] = {
+                { 0x0d, 0x00, 0x01, },
+                { 0x0d, 0x00, 0x00, },
+                { 0x04, 0x05, 0x00, },  /* hres = 1280 */
+                { 0x03, 0x04, 0x00, },  /* vres = 1024 */
+                { 0x20, 0x11, 0x00, },
+                { 0x06, 0x00, 0x10, },
+                { 0x2b, 0x00, 0x24, },
+                { 0x2e, 0x00, 0x24, },
+                { 0x35, 0x00, 0x24, },
+                { 0x2d, 0x00, 0x20, },
+                { 0x2c, 0x00, 0x20, },
+                { 0x09, 0x0a, 0xd4, },
+                { 0x35, 0x00, 0x57, },
+        };
+
+        for (i = 0; i < ARRAY_SIZE(regs); i++)
+                i2c_master_send(&dev->i2c_client, &regs[i][0], 3);
+
+        return 0;
+}
+
+/* HINT method: webcam I2C chips
+ *
+ * This method work for webcams with Micron sensors
+ */
+static int em28xx_hint_sensor(struct em28xx *dev)
+{
+        int rc;
+        char *sensor_name;
+        unsigned char cmd;
+        __be16 version_be;
+        u16 version;
+
+        dev->i2c_client.addr = 0xba >> 1;
+        cmd = 0;
+        i2c_master_send(&dev->i2c_client, &cmd, 1);
+        rc = i2c_master_recv(&dev->i2c_client, (char *)&version_be, 2);
+        if (rc != 2)
+                return -EINVAL;
+
+        version = be16_to_cpu(version_be);
+
+        switch (version) {
+        case 0x8243:            /* mt9v011 640x480 1.3 Mpix sensor */
+                dev->model = EM2820_BOARD_SILVERCREST_WEBCAM;
+                sensor_name = "mt9v011";
+                dev->em28xx_sensor = EM28XX_MT9V011;
+                dev->sensor_xres = 640;
+                dev->sensor_yres = 480;
+                dev->sensor_xtal = 6300000;
+
+                /* probably means GRGB 16 bit bayer */
+                dev->vinmode = 0x0d;
+                dev->vinctl = 0x00;
+
+                break;
+        case 0x8431:
+                dev->model = EM2750_BOARD_UNKNOWN;
+                sensor_name = "mt9m001";
+                dev->em28xx_sensor = EM28XX_MT9M001;
+                em28xx_initialize_mt9m001(dev);
+                dev->sensor_xres = 1280;
+                dev->sensor_yres = 1024;
+
+                /* probably means BGGR 16 bit bayer */
+                dev->vinmode = 0x0c;
+                dev->vinctl = 0x00;
+
+                break;
+        default:
+                printk("Unknown Micron Sensor 0x%04x\n", be16_to_cpu(version));
+                return -EINVAL;
+        }
+
+        em28xx_errdev("Sensor is %s, using model %s entry.\n",
+                      sensor_name, em28xx_boards[dev->model].name);
+
+        return 0;
+}
+
 /* Since em28xx_pre_card_setup() requires a proper dev->model,
  * this won't work for boards with generic PCI IDs
  */
@@ -1706,7 +1836,7 @@ void em28xx_pre_card_setup(struct em28xx *dev)
                         em28xx_info("chip ID is em2750\n");
                         break;
                 case CHIP_ID_EM2820:
-                        em28xx_info("chip ID is em2820\n");
+                        em28xx_info("chip ID is em2710 or em2820\n");
                         break;
                 case CHIP_ID_EM2840:
                         em28xx_info("chip ID is em2840\n");
@@ -1860,6 +1990,7 @@ static void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl)
                 ctl->demod = XC3028_FE_ZARLINK456;
                 break;
         case EM2880_BOARD_TERRATEC_HYBRID_XS:
+        case EM2881_BOARD_PINNACLE_HYBRID_PRO:
                 ctl->demod = XC3028_FE_ZARLINK456;
                 break;
         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
@@ -2156,8 +2287,13 @@ void em28xx_card_setup(struct em28xx *dev)
                    em28xx_set_mode() in em28xx_pre_card_setup() was a no-op,
                    so make the call now so the analog GPIOs are set properly
                    before probing the i2c bus. */
+                em28xx_gpio_set(dev, dev->board.tuner_gpio);
                 em28xx_set_mode(dev, EM28XX_ANALOG_MODE);
                 break;
+        case EM2820_BOARD_SILVERCREST_WEBCAM:
+                /* FIXME: need to document the registers bellow */
+                em28xx_write_reg(dev, 0x0d, 0x42);
+                em28xx_write_reg(dev, 0x13, 0x08);
         }
 
         if (dev->board.has_snapshot_button)
@@ -2189,6 +2325,15 @@ void em28xx_card_setup(struct em28xx *dev)
                 v4l2_i2c_new_probed_subdev(&dev->v4l2_dev, &dev->i2c_adap,
                         "tvp5150", "tvp5150", tvp5150_addrs);
 
+        if (dev->em28xx_sensor == EM28XX_MT9V011) {
+                struct v4l2_subdev *sd;
+
+                sd = v4l2_i2c_new_probed_subdev(&dev->v4l2_dev,
+                         &dev->i2c_adap, "mt9v011", "mt9v011", mt9v011_addrs);
+                v4l2_subdev_call(sd, core, s_config, 0, &dev->sensor_xtal);
+        }
+
+
         if (dev->board.adecoder == EM28XX_TVAUDIO)
                 v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
                         "tvaudio", "tvaudio", dev->board.tvaudio_addr);
@@ -2333,6 +2478,20 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
                 return errCode;
         }
 
+        /*
+         * Default format, used for tvp5150 or saa711x output formats
+         */
+        dev->vinmode = 0x10;
+        dev->vinctl  = 0x11;
+
+        /*
+         * If the device can be a webcam, seek for a sensor.
+         * If sensor is not found, then it isn't a webcam.
+         */
+        if (dev->board.is_webcam)
+                if (em28xx_hint_sensor(dev) < 0)
+                        dev->board.is_webcam = 0;
+
         /* Do board specific init and eeprom reading */
         em28xx_card_setup(dev);
 
@@ -2573,6 +2732,7 @@ static int em28xx_usb_probe(struct usb_interface *interface,
         retval = em28xx_init_dev(&dev, udev, interface, nr);
         if (retval) {
                 em28xx_devused &= ~(1<<dev->devno);
+                mutex_unlock(&dev->lock);
                 kfree(dev);
                 goto err;
         }
diff --git a/drivers/media/video/em28xx/em28xx-core.c b/drivers/media/video/em28xx/em28xx-core.c
index c8d7ce8fbd36..5b78e199abd1 100644
--- a/drivers/media/video/em28xx/em28xx-core.c
+++ b/drivers/media/video/em28xx/em28xx-core.c
@@ -650,15 +650,15 @@ int em28xx_set_outfmt(struct em28xx *dev)
         int ret;
 
         ret = em28xx_write_reg_bits(dev, EM28XX_R27_OUTFMT,
-                                    dev->format->reg | 0x20, 0x3f);
+                                dev->format->reg | 0x20, 0xff);
         if (ret < 0)
-                return ret;
+                        return ret;
 
-        ret = em28xx_write_reg(dev, EM28XX_R10_VINMODE, 0x10);
+        ret = em28xx_write_reg(dev, EM28XX_R10_VINMODE, dev->vinmode);
         if (ret < 0)
                 return ret;
 
-        return em28xx_write_reg(dev, EM28XX_R11_VINCTRL, 0x11);
+        return em28xx_write_reg(dev, EM28XX_R11_VINCTRL, dev->vinctl);
 }
 
 static int em28xx_accumulator_set(struct em28xx *dev, u8 xmin, u8 xmax,
@@ -695,13 +695,16 @@ static int em28xx_scaler_set(struct em28xx *dev, u16 h, u16 v)
 {
         u8 mode;
         /* the em2800 scaler only supports scaling down to 50% */
-        if (dev->board.is_em2800)
+
+        if (dev->board.is_em2800) {
                 mode = (v ? 0x20 : 0x00) | (h ? 0x10 : 0x00);
-        else {
+        } else {
                 u8 buf[2];
+
                 buf[0] = h;
                 buf[1] = h >> 8;
                 em28xx_write_regs(dev, EM28XX_R30_HSCALELOW, (char *)buf, 2);
+
                 buf[0] = v;
                 buf[1] = v >> 8;
                 em28xx_write_regs(dev, EM28XX_R32_VSCALELOW, (char *)buf, 2);
@@ -720,8 +723,11 @@ int em28xx_resolution_set(struct em28xx *dev)
         height = norm_maxh(dev) >> 1;
 
         em28xx_set_outfmt(dev);
+
+
         em28xx_accumulator_set(dev, 1, (width - 4) >> 2, 1, (height - 4) >> 2);
         em28xx_capture_area_set(dev, 0, 0, width >> 2, height >> 2);
+
         return em28xx_scaler_set(dev, dev->hscale, dev->vscale);
 }
 
diff --git a/drivers/media/video/em28xx/em28xx-dvb.c b/drivers/media/video/em28xx/em28xx-dvb.c
index e7b47c8da8f3..cf0ac7f2a30d 100644
--- a/drivers/media/video/em28xx/em28xx-dvb.c
+++ b/drivers/media/video/em28xx/em28xx-dvb.c
@@ -31,6 +31,8 @@
 #include "lgdt330x.h"
 #include "zl10353.h"
 #include "s5h1409.h"
+#include "mt352.h"
+#include "mt352_priv.h" /* FIXME */
 
 MODULE_DESCRIPTION("driver for em28xx based DVB cards");
 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
@@ -243,6 +245,14 @@ static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
 };
 
+static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
+        .demod_address = (0x1e >> 1),
+        .no_tuner = 1,
+        .disable_i2c_gate_ctrl = 1,
+        .parallel_ts = 1,
+        .if2 = 45600,
+};
+
 #ifdef EM28XX_DRX397XD_SUPPORT
 /* [TODO] djh - not sure yet what the device config needs to contain */
 static struct drx397xD_config em28xx_drx397xD_with_xc3028 = {
@@ -250,6 +260,41 @@ static struct drx397xD_config em28xx_drx397xD_with_xc3028 = {
 };
 #endif
 
+static int mt352_terratec_xs_init(struct dvb_frontend *fe)
+{
+        /* Values extracted from a USB trace of the Terratec Windows driver */
+        static u8 clock_config[]   = { CLOCK_CTL,  0x38, 0x2c };
+        static u8 reset[]          = { RESET,      0x80 };
+        static u8 adc_ctl_1_cfg[]  = { ADC_CTL_1,  0x40 };
+        static u8 agc_cfg[]        = { AGC_TARGET, 0x28, 0xa0 };
+        static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
+        static u8 rs_err_cfg[]     = { RS_ERR_PER_1, 0x00, 0x4d };
+        static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
+        static u8 trl_nom_cfg[]    = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
+        static u8 tps_given_cfg[]  = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
+        static u8 tuner_go[]       = { TUNER_GO, 0x01};
+
+        mt352_write(fe, clock_config,   sizeof(clock_config));
+        udelay(200);
+        mt352_write(fe, reset,          sizeof(reset));
+        mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
+        mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
+        mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
+        mt352_write(fe, rs_err_cfg,     sizeof(rs_err_cfg));
+        mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
+        mt352_write(fe, trl_nom_cfg,    sizeof(trl_nom_cfg));
+        mt352_write(fe, tps_given_cfg,  sizeof(tps_given_cfg));
+        mt352_write(fe, tuner_go,       sizeof(tuner_go));
+        return 0;
+}
+
+static struct mt352_config terratec_xs_mt352_cfg = {
+        .demod_address = (0x1e >> 1),
+        .no_tuner = 1,
+        .if2 = 45600,
+        .demod_init = mt352_terratec_xs_init,
+};
+
 /* ------------------------------------------------------------------ */
 
 static int attach_xc3028(u8 addr, struct em28xx *dev)
@@ -432,8 +477,6 @@ static int dvb_init(struct em28xx *dev)
                         goto out_free;
                 }
                 break;
-        case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
-        case EM2880_BOARD_TERRATEC_HYBRID_XS:
         case EM2880_BOARD_KWORLD_DVB_310U:
         case EM2880_BOARD_EMPIRE_DUAL_TV:
                 dvb->frontend = dvb_attach(zl10353_attach,
@@ -444,6 +487,33 @@ static int dvb_init(struct em28xx *dev)
                         goto out_free;
                 }
                 break;
+        case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
+                dvb->frontend = dvb_attach(zl10353_attach,
+                                           &em28xx_zl10353_xc3028_no_i2c_gate,
+                                           &dev->i2c_adap);
+                if (attach_xc3028(0x61, dev) < 0) {
+                        result = -EINVAL;
+                        goto out_free;
+                }
+                break;
+        case EM2880_BOARD_TERRATEC_HYBRID_XS:
+        case EM2881_BOARD_PINNACLE_HYBRID_PRO:
+                dvb->frontend = dvb_attach(zl10353_attach,
+                                           &em28xx_zl10353_xc3028_no_i2c_gate,
+                                           &dev->i2c_adap);
+                if (dvb->frontend == NULL) {
+                        /* This board could have either a zl10353 or a mt352.
+                           If the chip id isn't for zl10353, try mt352 */
+                        dvb->frontend = dvb_attach(mt352_attach,
+                                                   &terratec_xs_mt352_cfg,
+                                                   &dev->i2c_adap);
+                }
+
+                if (attach_xc3028(0x61, dev) < 0) {
+                        result = -EINVAL;
+                        goto out_free;
+                }
+                break;
         case EM2883_BOARD_KWORLD_HYBRID_330U:
         case EM2882_BOARD_EVGA_INDTUBE:
                 dvb->frontend = dvb_attach(s5h1409_attach,
diff --git a/drivers/media/video/em28xx/em28xx-i2c.c b/drivers/media/video/em28xx/em28xx-i2c.c
index 2c86fcf089f5..27e33a287dfc 100644
--- a/drivers/media/video/em28xx/em28xx-i2c.c
+++ b/drivers/media/video/em28xx/em28xx-i2c.c
@@ -483,7 +483,7 @@ static char *i2c_devs[128] = {
         [0xa0 >> 1] = "eeprom",
         [0xb0 >> 1] = "tda9874",
         [0xb8 >> 1] = "tvp5150a",
-        [0xba >> 1] = "tvp5150a",
+        [0xba >> 1] = "webcam sensor or tvp5150a",
         [0xc0 >> 1] = "tuner (analog)",
         [0xc2 >> 1] = "tuner (analog)",
         [0xc4 >> 1] = "tuner (analog)",
diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c
index 8fe1beecfffa..ff37b4c15f44 100644
--- a/drivers/media/video/em28xx/em28xx-video.c
+++ b/drivers/media/video/em28xx/em28xx-video.c
@@ -90,10 +90,35 @@ MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
 /* supported video standards */
 static struct em28xx_fmt format[] = {
         {
-                .name     = "16bpp YUY2, 4:2:2, packed",
+                .name     = "16 bpp YUY2, 4:2:2, packed",
                 .fourcc   = V4L2_PIX_FMT_YUYV,
                 .depth    = 16,
                 .reg      = EM28XX_OUTFMT_YUV422_Y0UY1V,
+        }, {
+                .name     = "16 bpp RGB 565, LE",
+                .fourcc   = V4L2_PIX_FMT_RGB565,
+                .depth    = 16,
+                .reg      = EM28XX_OUTFMT_RGB_16_656,
+        }, {
+                .name     = "8 bpp Bayer BGBG..GRGR",
+                .fourcc   = V4L2_PIX_FMT_SBGGR8,
+                .depth    = 8,
+                .reg      = EM28XX_OUTFMT_RGB_8_BGBG,
+        }, {
+                .name     = "8 bpp Bayer GRGR..BGBG",
+                .fourcc   = V4L2_PIX_FMT_SGRBG8,
+                .depth    = 8,
+                .reg      = EM28XX_OUTFMT_RGB_8_GRGR,
+        }, {
+                .name     = "8 bpp Bayer GBGB..RGRG",
+                .fourcc   = V4L2_PIX_FMT_SGBRG8,
+                .depth    = 8,
+                .reg      = EM28XX_OUTFMT_RGB_8_GBGB,
+        }, {
+                .name     = "12 bpp YUV411",
+                .fourcc   = V4L2_PIX_FMT_YUV411P,
+                .depth    = 12,
+                .reg      = EM28XX_OUTFMT_YUV411,
         },
 };
 
@@ -632,8 +657,8 @@ static void get_scale(struct em28xx *dev,
                         unsigned int width, unsigned int height,
                         unsigned int *hscale, unsigned int *vscale)
 {
-        unsigned int          maxw   = norm_maxw(dev);
-        unsigned int          maxh   = norm_maxh(dev);
+        unsigned int          maxw = norm_maxw(dev);
+        unsigned int          maxh = norm_maxh(dev);
 
         *hscale = (((unsigned long)maxw) << 12) / width - 4096L;
         if (*hscale >= 0x4000)
@@ -733,13 +758,34 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
         return 0;
 }
 
+static int em28xx_set_video_format(struct em28xx *dev, unsigned int fourcc,
+                                   unsigned width, unsigned height)
+{
+        struct em28xx_fmt     *fmt;
+
+        fmt = format_by_fourcc(fourcc);
+        if (!fmt)
+                return -EINVAL;
+
+        dev->format = fmt;
+        dev->width  = width;
+        dev->height = height;
+
+        /* set new image size */
+        get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
+
+        em28xx_set_alternate(dev);
+        em28xx_resolution_set(dev);
+
+        return 0;
+}
+
 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
                         struct v4l2_format *f)
 {
         struct em28xx_fh      *fh  = priv;
         struct em28xx         *dev = fh->dev;
         int                   rc;
-        struct em28xx_fmt     *fmt;
 
         rc = check_dev(dev);
         if (rc < 0)
@@ -749,12 +795,6 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 
         vidioc_try_fmt_vid_cap(file, priv, f);
 
-        fmt = format_by_fourcc(f->fmt.pix.pixelformat);
-        if (!fmt) {
-                rc = -EINVAL;
-                goto out;
-        }
-
         if (videobuf_queue_is_busy(&fh->vb_vidq)) {
                 em28xx_errdev("%s queue busy\n", __func__);
                 rc = -EBUSY;
@@ -767,16 +807,8 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
                 goto out;
         }
 
-        /* set new image size */
-        dev->width = f->fmt.pix.width;
-        dev->height = f->fmt.pix.height;
-        dev->format = fmt;
-        get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
-
-        em28xx_set_alternate(dev);
-        em28xx_resolution_set(dev);
-
-        rc = 0;
+        rc = em28xx_set_video_format(dev, f->fmt.pix.pixelformat,
+                                f->fmt.pix.width, f->fmt.pix.height);
 
 out:
         mutex_unlock(&dev->lock);
@@ -1616,11 +1648,6 @@ static int em28xx_v4l2_open(struct file *filp)
         filp->private_data = fh;
 
         if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
-                dev->width = norm_maxw(dev);
-                dev->height = norm_maxh(dev);
-                dev->hscale = 0;
-                dev->vscale = 0;
-
                 em28xx_set_mode(dev, EM28XX_ANALOG_MODE);
                 em28xx_set_alternate(dev);
                 em28xx_resolution_set(dev);
@@ -1962,15 +1989,14 @@ int em28xx_register_analog_devices(struct em28xx *dev)
 
         /* set default norm */
         dev->norm = em28xx_video_template.current_norm;
-        dev->width = norm_maxw(dev);
-        dev->height = norm_maxh(dev);
         dev->interlaced = EM28XX_INTERLACED_DEFAULT;
-        dev->hscale = 0;
-        dev->vscale = 0;
         dev->ctl_input = 0;
 
         /* Analog specific initialization */
         dev->format = &format[0];
+        em28xx_set_video_format(dev, format[0].fourcc,
+                                norm_maxw(dev), norm_maxh(dev));
+
         video_mux(dev, dev->ctl_input);
 
         /* Audio defaults */
diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h
index 813ce45c2f99..45bd513f62dc 100644
--- a/drivers/media/video/em28xx/em28xx.h
+++ b/drivers/media/video/em28xx/em28xx.h
@@ -107,6 +107,7 @@
 #define EM2860_BOARD_TERRATEC_AV350               68
 #define EM2882_BOARD_KWORLD_ATSC_315U             69
 #define EM2882_BOARD_EVGA_INDTUBE                 70
+#define EM2820_BOARD_SILVERCREST_WEBCAM           71
 
 /* Limits minimum and default number of buffers */
 #define EM28XX_MIN_BUF 4
@@ -357,11 +358,17 @@ struct em28xx_input {
 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
 
 enum em28xx_decoder {
-        EM28XX_NODECODER,
+        EM28XX_NODECODER = 0,
         EM28XX_TVP5150,
         EM28XX_SAA711X,
 };
 
+enum em28xx_sensor {
+        EM28XX_NOSENSOR = 0,
+        EM28XX_MT9V011,
+        EM28XX_MT9M001,
+};
+
 enum em28xx_adecoder {
         EM28XX_NOADECODER = 0,
         EM28XX_TVAUDIO,
@@ -388,6 +395,7 @@ struct em28xx_board {
         unsigned int max_range_640_480:1;
         unsigned int has_dvb:1;
         unsigned int has_snapshot_button:1;
+        unsigned int is_webcam:1;
         unsigned int valid:1;
 
         unsigned char xclk, i2c_speed;
@@ -471,6 +479,14 @@ struct em28xx {
         struct v4l2_device v4l2_dev;
         struct em28xx_board board;
 
+        /* Webcam specific fields */
+        enum em28xx_sensor em28xx_sensor;
+        int sensor_xres, sensor_yres;
+        int sensor_xtal;
+
+        /* Vinmode/Vinctl used at the driver */
+        int vinmode, vinctl;
+
         unsigned int stream_on:1;       /* Locks streams */
         unsigned int has_audio_class:1;
         unsigned int has_alsa_audio:1;
@@ -751,17 +767,23 @@ static inline int em28xx_gamma_set(struct em28xx *dev, s32 val)
 /*FIXME: maxw should be dependent of alt mode */
 static inline unsigned int norm_maxw(struct em28xx *dev)
 {
+        if (dev->board.is_webcam)
+                return dev->sensor_xres;
+
         if (dev->board.max_range_640_480)
                 return 640;
-        else
-                return 720;
+
+        return 720;
 }
 
 static inline unsigned int norm_maxh(struct em28xx *dev)
 {
+        if (dev->board.is_webcam)
+                return dev->sensor_yres;
+
         if (dev->board.max_range_640_480)
                 return 480;
-        else
-                return (dev->norm & V4L2_STD_625_50) ? 576 : 480;
+
+        return (dev->norm & V4L2_STD_625_50) ? 576 : 480;
 }
 #endif
diff --git a/drivers/media/video/gspca/Kconfig b/drivers/media/video/gspca/Kconfig
index 578dc4ffc965..34f46f2bc040 100644
--- a/drivers/media/video/gspca/Kconfig
+++ b/drivers/media/video/gspca/Kconfig
@@ -102,6 +102,22 @@ config USB_GSPCA_PAC7311
           To compile this driver as a module, choose M here: the
           module will be called gspca_pac7311.
 
+config USB_GSPCA_SN9C20X
+       tristate "SN9C20X USB Camera Driver"
+       depends on VIDEO_V4L2 && USB_GSPCA
+       help
+         Say Y here if you want support for cameras based on the
+         sn9c20x chips (SN9C201 and SN9C202).
+
+         To compile this driver as a module, choose M here: the
+         module will be called gspca_sn9c20x.
+
+config USB_GSPCA_SN9C20X_EVDEV
+       bool "Enable evdev support"
+       depends on USB_GSPCA_SN9C20X
+       ---help---
+         Say Y here in order to enable evdev support for sn9c20x webcam button.
+
 config USB_GSPCA_SONIXB
         tristate "SONIX Bayer USB Camera Driver"
         depends on VIDEO_V4L2 && USB_GSPCA
diff --git a/drivers/media/video/gspca/Makefile b/drivers/media/video/gspca/Makefile
index 8a6643e8eb96..f6d3b86e9ad5 100644
--- a/drivers/media/video/gspca/Makefile
+++ b/drivers/media/video/gspca/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_USB_GSPCA_OV519)    += gspca_ov519.o
 obj-$(CONFIG_USB_GSPCA_OV534)    += gspca_ov534.o
 obj-$(CONFIG_USB_GSPCA_PAC207)   += gspca_pac207.o
 obj-$(CONFIG_USB_GSPCA_PAC7311)  += gspca_pac7311.o
+obj-$(CONFIG_USB_GSPCA_SN9C20X)  += gspca_sn9c20x.o
 obj-$(CONFIG_USB_GSPCA_SONIXB)   += gspca_sonixb.o
 obj-$(CONFIG_USB_GSPCA_SONIXJ)   += gspca_sonixj.o
 obj-$(CONFIG_USB_GSPCA_SPCA500)  += gspca_spca500.o
@@ -35,6 +36,7 @@ gspca_ov519-objs    := ov519.o
 gspca_ov534-objs    := ov534.o
 gspca_pac207-objs   := pac207.o
 gspca_pac7311-objs  := pac7311.o
+gspca_sn9c20x-objs  := sn9c20x.o
 gspca_sonixb-objs   := sonixb.o
 gspca_sonixj-objs   := sonixj.o
 gspca_spca500-objs  := spca500.o
diff --git a/drivers/media/video/gspca/conex.c b/drivers/media/video/gspca/conex.c
index 219cfa6fb877..8d48ea1742c2 100644
--- a/drivers/media/video/gspca/conex.c
+++ b/drivers/media/video/gspca/conex.c
@@ -846,6 +846,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 
         /* create the JPEG header */
         sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
+        if (!sd->jpeg_hdr)
+                return -ENOMEM;
         jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
                         0x22);          /* JPEG 411 */
         jpeg_set_qual(sd->jpeg_hdr, sd->quality);
diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c
index 1e89600986c8..b8561dfb6c8c 100644
--- a/drivers/media/video/gspca/gspca.c
+++ b/drivers/media/video/gspca/gspca.c
@@ -727,6 +727,74 @@ static int gspca_get_mode(struct gspca_dev *gspca_dev,
         return -EINVAL;
 }
 
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int vidioc_g_register(struct file *file, void *priv,
+                        struct v4l2_dbg_register *reg)
+{
+        int ret;
+        struct gspca_dev *gspca_dev = priv;
+
+        if (!gspca_dev->sd_desc->get_chip_ident)
+                return -EINVAL;
+
+        if (!gspca_dev->sd_desc->get_register)
+                return -EINVAL;
+
+        if (mutex_lock_interruptible(&gspca_dev->usb_lock))
+                return -ERESTARTSYS;
+        if (gspca_dev->present)
+                ret = gspca_dev->sd_desc->get_register(gspca_dev, reg);
+        else
+                ret = -ENODEV;
+        mutex_unlock(&gspca_dev->usb_lock);
+
+        return ret;
+}
+
+static int vidioc_s_register(struct file *file, void *priv,
+                        struct v4l2_dbg_register *reg)
+{
+        int ret;
+        struct gspca_dev *gspca_dev = priv;
+
+        if (!gspca_dev->sd_desc->get_chip_ident)
+                return -EINVAL;
+
+        if (!gspca_dev->sd_desc->set_register)
+                return -EINVAL;
+
+        if (mutex_lock_interruptible(&gspca_dev->usb_lock))
+                return -ERESTARTSYS;
+        if (gspca_dev->present)
+                ret = gspca_dev->sd_desc->set_register(gspca_dev, reg);
+        else
+                ret = -ENODEV;
+        mutex_unlock(&gspca_dev->usb_lock);
+
+        return ret;
+}
+#endif
+
+static int vidioc_g_chip_ident(struct file *file, void *priv,
+                        struct v4l2_dbg_chip_ident *chip)
+{
+        int ret;
+        struct gspca_dev *gspca_dev = priv;
+
+        if (!gspca_dev->sd_desc->get_chip_ident)
+                return -EINVAL;
+
+        if (mutex_lock_interruptible(&gspca_dev->usb_lock))
+                return -ERESTARTSYS;
+        if (gspca_dev->present)
+                ret = gspca_dev->sd_desc->get_chip_ident(gspca_dev, chip);
+        else
+                ret = -ENODEV;
+        mutex_unlock(&gspca_dev->usb_lock);
+
+        return ret;
+}
+
 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
                                 struct v4l2_fmtdesc *fmtdesc)
 {
@@ -1883,6 +1951,11 @@ static const struct v4l2_ioctl_ops dev_ioctl_ops = {
         .vidioc_s_parm          = vidioc_s_parm,
         .vidioc_s_std           = vidioc_s_std,
         .vidioc_enum_framesizes = vidioc_enum_framesizes,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+        .vidioc_g_register      = vidioc_g_register,
+        .vidioc_s_register      = vidioc_s_register,
+#endif
+        .vidioc_g_chip_ident    = vidioc_g_chip_ident,
 #ifdef CONFIG_VIDEO_V4L1_COMPAT
         .vidiocgmbuf          = vidiocgmbuf,
 #endif
diff --git a/drivers/media/video/gspca/gspca.h b/drivers/media/video/gspca/gspca.h
index bd1faff88644..46c4effdfcd5 100644
--- a/drivers/media/video/gspca/gspca.h
+++ b/drivers/media/video/gspca/gspca.h
@@ -69,6 +69,10 @@ typedef void (*cam_v_op) (struct gspca_dev *);
 typedef int (*cam_cf_op) (struct gspca_dev *, const struct usb_device_id *);
 typedef int (*cam_jpg_op) (struct gspca_dev *,
                                 struct v4l2_jpegcompression *);
+typedef int (*cam_reg_op) (struct gspca_dev *,
+                                struct v4l2_dbg_register *);
+typedef int (*cam_ident_op) (struct gspca_dev *,
+                                struct v4l2_dbg_chip_ident *);
 typedef int (*cam_streamparm_op) (struct gspca_dev *,
                                   struct v4l2_streamparm *);
 typedef int (*cam_qmnu_op) (struct gspca_dev *,
@@ -105,6 +109,11 @@ struct sd_desc {
         cam_qmnu_op querymenu;
         cam_streamparm_op get_streamparm;
         cam_streamparm_op set_streamparm;
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+        cam_reg_op set_register;
+        cam_reg_op get_register;
+#endif
+        cam_ident_op get_chip_ident;
 };
 
 /* packet types when moving from iso buf to frame buf */
diff --git a/drivers/media/video/gspca/m5602/m5602_s5k4aa.c b/drivers/media/video/gspca/m5602/m5602_s5k4aa.c
index 191bcd718979..0163903d1c0f 100644
--- a/drivers/media/video/gspca/m5602/m5602_s5k4aa.c
+++ b/drivers/media/video/gspca/m5602/m5602_s5k4aa.c
@@ -476,9 +476,6 @@ static int s5k4aa_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
         err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
         if (err < 0)
                 return err;
-        err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1);
-        if (err < 0)
-                return err;
 
         err = m5602_read_sensor(sd, S5K4AA_READ_MODE, &data, 1);
         if (err < 0)
@@ -524,9 +521,6 @@ static int s5k4aa_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
         err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
         if (err < 0)
                 return err;
-        err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1);
-        if (err < 0)
-                return err;
 
         err = m5602_read_sensor(sd, S5K4AA_READ_MODE, &data, 1);
         if (err < 0)
diff --git a/drivers/media/video/gspca/mars.c b/drivers/media/video/gspca/mars.c
index 75e8d14e4ac7..de769caf013d 100644
--- a/drivers/media/video/gspca/mars.c
+++ b/drivers/media/video/gspca/mars.c
@@ -201,6 +201,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 
         /* create the JPEG header */
         sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
+        if (!sd->jpeg_hdr)
+                return -ENOMEM;
         jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
                         0x21);          /* JPEG 422 */
         jpeg_set_qual(sd->jpeg_hdr, sd->quality);
diff --git a/drivers/media/video/gspca/sn9c20x.c b/drivers/media/video/gspca/sn9c20x.c
new file mode 100644
index 000000000000..fcfbbd329b4c
--- /dev/null
+++ b/drivers/media/video/gspca/sn9c20x.c
@@ -0,0 +1,2434 @@
+/*
+ *      Sonix sn9c201 sn9c202 library
+ *      Copyright (C) 2008-2009 microdia project <microdia@googlegroups.com>
+ *      Copyright (C) 2009 Brian Johnson <brijohn@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifdef CONFIG_USB_GSPCA_SN9C20X_EVDEV
+#include <linux/kthread.h>
+#include <linux/freezer.h>
+#include <linux/usb/input.h>
+#include <linux/input.h>
+#endif
+
+#include "gspca.h"
+#include "jpeg.h"
+
+#include <media/v4l2-chip-ident.h>
+
+MODULE_AUTHOR("Brian Johnson <brijohn@gmail.com>, "
+                "microdia project <microdia@googlegroups.com>");
+MODULE_DESCRIPTION("GSPCA/SN9C20X USB Camera Driver");
+MODULE_LICENSE("GPL");
+
+#define MODULE_NAME "sn9c20x"
+
+#define MODE_RAW        0x10
+#define MODE_JPEG       0x20
+#define MODE_SXGA       0x80
+
+#define SENSOR_OV9650   0
+#define SENSOR_OV9655   1
+#define SENSOR_SOI968   2
+#define SENSOR_OV7660   3
+#define SENSOR_OV7670   4
+#define SENSOR_MT9V011  5
+#define SENSOR_MT9V111  6
+#define SENSOR_MT9V112  7
+#define SENSOR_MT9M001  8
+#define SENSOR_MT9M111  9
+#define SENSOR_HV7131R  10
+#define SENSOR_MT9VPRB  20
+
+/* specific webcam descriptor */
+struct sd {
+        struct gspca_dev gspca_dev;
+
+#define MIN_AVG_LUM 80
+#define MAX_AVG_LUM 130
+        atomic_t avg_lum;
+        u8 old_step;
+        u8 older_step;
+        u8 exposure_step;
+
+        u8 brightness;
+        u8 contrast;
+        u8 saturation;
+        s16 hue;
+        u8 gamma;
+        u8 red;
+        u8 blue;
+
+        u8 hflip;
+        u8 vflip;
+        u8 gain;
+        u16 exposure;
+        u8 auto_exposure;
+
+        u8 i2c_addr;
+        u8 sensor;
+        u8 hstart;
+        u8 vstart;
+
+        u8 *jpeg_hdr;
+        u8 quality;
+
+#ifdef CONFIG_USB_GSPCA_SN9C20X_EVDEV
+        struct input_dev *input_dev;
+        u8 input_gpio;
+        struct task_struct *input_task;
+#endif
+};
+
+static int sd_setbrightness(struct gspca_dev *gspca_dev, s32 val);
+static int sd_getbrightness(struct gspca_dev *gspca_dev, s32 *val);
+static int sd_setcontrast(struct gspca_dev *gspca_dev, s32 val);
+static int sd_getcontrast(struct gspca_dev *gspca_dev, s32 *val);
+static int sd_setsaturation(struct gspca_dev *gspca_dev, s32 val);
+static int sd_getsaturation(struct gspca_dev *gspca_dev, s32 *val);
+static int sd_sethue(struct gspca_dev *gspca_dev, s32 val);
+static int sd_gethue(struct gspca_dev *gspca_dev, s32 *val);
+static int sd_setgamma(struct gspca_dev *gspca_dev, s32 val);
+static int sd_getgamma(struct gspca_dev *gspca_dev, s32 *val);
+static int sd_setredbalance(struct gspca_dev *gspca_dev, s32 val);
+static int sd_getredbalance(struct gspca_dev *gspca_dev, s32 *val);
+static int sd_setbluebalance(struct gspca_dev *gspca_dev, s32 val);
+static int sd_getbluebalance(struct gspca_dev *gspca_dev, s32 *val);
+static int sd_setvflip(struct gspca_dev *gspca_dev, s32 val);
+static int sd_getvflip(struct gspca_dev *gspca_dev, s32 *val);
+static int sd_sethflip(struct gspca_dev *gspca_dev, s32 val);
+static int sd_gethflip(struct gspca_dev *gspca_dev, s32 *val);
+static int sd_setgain(struct gspca_dev *gspca_dev, s32 val);
+static int sd_getgain(struct gspca_dev *gspca_dev, s32 *val);
+static int sd_setexposure(struct gspca_dev *gspca_dev, s32 val);
+static int sd_getexposure(struct gspca_dev *gspca_dev, s32 *val);
+static int sd_setautoexposure(struct gspca_dev *gspca_dev, s32 val);
+static int sd_getautoexposure(struct gspca_dev *gspca_dev, s32 *val);
+
+static struct ctrl sd_ctrls[] = {
+        {
+#define BRIGHTNESS_IDX 0
+            {
+                .id      = V4L2_CID_BRIGHTNESS,
+                .type    = V4L2_CTRL_TYPE_INTEGER,
+                .name    = "Brightness",
+                .minimum = 0,
+                .maximum = 0xff,
+                .step    = 1,
+#define BRIGHTNESS_DEFAULT 0x7f
+                .default_value = BRIGHTNESS_DEFAULT,
+            },
+            .set = sd_setbrightness,
+            .get = sd_getbrightness,
+        },
+        {
+#define CONTRAST_IDX 1
+            {
+                .id      = V4L2_CID_CONTRAST,
+                .type    = V4L2_CTRL_TYPE_INTEGER,
+                .name    = "Contrast",
+                .minimum = 0,
+                .maximum = 0xff,
+                .step    = 1,
+#define CONTRAST_DEFAULT 0x7f
+                .default_value = CONTRAST_DEFAULT,
+            },
+            .set = sd_setcontrast,
+            .get = sd_getcontrast,
+        },
+        {
+#define SATURATION_IDX 2
+            {
+                .id      = V4L2_CID_SATURATION,
+                .type    = V4L2_CTRL_TYPE_INTEGER,
+                .name    = "Saturation",
+                .minimum = 0,
+                .maximum = 0xff,
+                .step    = 1,
+#define SATURATION_DEFAULT 0x7f
+                .default_value = SATURATION_DEFAULT,
+            },
+            .set = sd_setsaturation,
+            .get = sd_getsaturation,
+        },
+        {
+#define HUE_IDX 3
+            {
+                .id      = V4L2_CID_HUE,
+                .type    = V4L2_CTRL_TYPE_INTEGER,
+                .name    = "Hue",
+                .minimum = -180,
+                .maximum = 180,
+                .step    = 1,
+#define HUE_DEFAULT 0
+                .default_value = HUE_DEFAULT,
+            },
+            .set = sd_sethue,
+            .get = sd_gethue,
+        },
+        {
+#define GAMMA_IDX 4
+            {
+                .id      = V4L2_CID_GAMMA,
+                .type    = V4L2_CTRL_TYPE_INTEGER,
+                .name    = "Gamma",
+                .minimum = 0,
+                .maximum = 0xff,
+                .step    = 1,
+#define GAMMA_DEFAULT 0x10
+                .default_value = GAMMA_DEFAULT,
+            },
+            .set = sd_setgamma,
+            .get = sd_getgamma,
+        },
+        {
+#define BLUE_IDX 5
+            {
+                .id      = V4L2_CID_BLUE_BALANCE,
+                .type    = V4L2_CTRL_TYPE_INTEGER,
+                .name    = "Blue Balance",
+                .minimum = 0,
+                .maximum = 0x7f,
+                .step    = 1,
+#define BLUE_DEFAULT 0x28
+                .default_value = BLUE_DEFAULT,
+            },
+            .set = sd_setbluebalance,
+            .get = sd_getbluebalance,
+        },
+        {
+#define RED_IDX 6
+            {
+                .id      = V4L2_CID_RED_BALANCE,
+                .type    = V4L2_CTRL_TYPE_INTEGER,
+                .name    = "Red Balance",
+                .minimum = 0,
+                .maximum = 0x7f,
+                .step    = 1,
+#define RED_DEFAULT 0x28
+                .default_value = RED_DEFAULT,
+            },
+            .set = sd_setredbalance,
+            .get = sd_getredbalance,
+        },
+        {
+#define HFLIP_IDX 7
+            {
+                .id      = V4L2_CID_HFLIP,
+                .type    = V4L2_CTRL_TYPE_BOOLEAN,
+                .name    = "Horizontal Flip",
+                .minimum = 0,
+                .maximum = 1,
+                .step    = 1,
+#define HFLIP_DEFAULT 0
+                .default_value = HFLIP_DEFAULT,
+            },
+            .set = sd_sethflip,
+            .get = sd_gethflip,
+        },
+        {
+#define VFLIP_IDX 8
+            {
+                .id      = V4L2_CID_VFLIP,
+                .type    = V4L2_CTRL_TYPE_BOOLEAN,
+                .name    = "Vertical Flip",
+                .minimum = 0,
+                .maximum = 1,
+                .step    = 1,
+#define VFLIP_DEFAULT 0
+                .default_value = VFLIP_DEFAULT,
+            },
+            .set = sd_setvflip,
+            .get = sd_getvflip,
+        },
+        {
+#define EXPOSURE_IDX 9
+            {
+                .id      = V4L2_CID_EXPOSURE,
+                .type    = V4L2_CTRL_TYPE_INTEGER,
+                .name    = "Exposure",
+                .minimum = 0,
+                .maximum = 0x1780,
+                .step    = 1,
+#define EXPOSURE_DEFAULT 0x33
+                .default_value = EXPOSURE_DEFAULT,
+            },
+            .set = sd_setexposure,
+            .get = sd_getexposure,
+        },
+        {
+#define GAIN_IDX 10
+            {
+                .id      = V4L2_CID_GAIN,
+                .type    = V4L2_CTRL_TYPE_INTEGER,
+                .name    = "Gain",
+                .minimum = 0,
+                .maximum = 28,
+                .step    = 1,
+#define GAIN_DEFAULT 0x00
+                .default_value = GAIN_DEFAULT,
+            },
+            .set = sd_setgain,
+            .get = sd_getgain,
+        },
+        {
+#define AUTOGAIN_IDX 11
+            {
+                .id      = V4L2_CID_AUTOGAIN,
+                .type    = V4L2_CTRL_TYPE_BOOLEAN,
+                .name    = "Auto Exposure",
+                .minimum = 0,
+                .maximum = 1,
+                .step    = 1,
+#define AUTO_EXPOSURE_DEFAULT 1
+                .default_value = AUTO_EXPOSURE_DEFAULT,
+            },
+            .set = sd_setautoexposure,
+            .get = sd_getautoexposure,
+        },
+};
+
+static const struct v4l2_pix_format vga_mode[] = {
+        {160, 120, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
+                .bytesperline = 240,
+                .sizeimage = 240 * 120,
+                .colorspace = V4L2_COLORSPACE_JPEG,
+                .priv = 0 | MODE_JPEG},
+        {160, 120, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
+                .bytesperline = 160,
+                .sizeimage = 160 * 120,
+                .colorspace = V4L2_COLORSPACE_SRGB,
+                .priv = 0 | MODE_RAW},
+        {160, 120, V4L2_PIX_FMT_SN9C20X_I420, V4L2_FIELD_NONE,
+                .bytesperline = 240,
+                .sizeimage = 240 * 120,
+                .colorspace = V4L2_COLORSPACE_SRGB,
+                .priv = 0},
+        {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
+                .bytesperline = 480,
+                .sizeimage = 480 * 240 ,
+                .colorspace = V4L2_COLORSPACE_JPEG,
+                .priv = 1 | MODE_JPEG},
+        {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
+                .bytesperline = 320,
+                .sizeimage = 320 * 240 ,
+                .colorspace = V4L2_COLORSPACE_SRGB,
+                .priv = 1 | MODE_RAW},
+        {320, 240, V4L2_PIX_FMT_SN9C20X_I420, V4L2_FIELD_NONE,
+                .bytesperline = 480,
+                .sizeimage = 480 * 240 ,
+                .colorspace = V4L2_COLORSPACE_SRGB,
+                .priv = 1},
+        {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
+                .bytesperline = 960,
+                .sizeimage = 960 * 480,
+                .colorspace = V4L2_COLORSPACE_JPEG,
+                .priv = 2 | MODE_JPEG},
+        {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
+                .bytesperline = 640,
+                .sizeimage = 640 * 480,
+                .colorspace = V4L2_COLORSPACE_SRGB,
+                .priv = 2 | MODE_RAW},
+        {640, 480, V4L2_PIX_FMT_SN9C20X_I420, V4L2_FIELD_NONE,
+                .bytesperline = 960,
+                .sizeimage = 960 * 480,
+                .colorspace = V4L2_COLORSPACE_SRGB,
+                .priv = 2},
+};
+
+static const struct v4l2_pix_format sxga_mode[] = {
+        {160, 120, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
+                .bytesperline = 240,
+                .sizeimage = 240 * 120,
+                .colorspace = V4L2_COLORSPACE_JPEG,
+                .priv = 0 | MODE_JPEG},
+        {160, 120, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
+                .bytesperline = 160,
+                .sizeimage = 160 * 120,
+                .colorspace = V4L2_COLORSPACE_SRGB,
+                .priv = 0 | MODE_RAW},
+        {160, 120, V4L2_PIX_FMT_SN9C20X_I420, V4L2_FIELD_NONE,
+                .bytesperline = 240,
+                .sizeimage = 240 * 120,
+                .colorspace = V4L2_COLORSPACE_SRGB,
+                .priv = 0},
+        {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
+                .bytesperline = 480,
+                .sizeimage = 480 * 240 ,
+                .colorspace = V4L2_COLORSPACE_JPEG,
+                .priv = 1 | MODE_JPEG},
+        {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
+                .bytesperline = 320,
+                .sizeimage = 320 * 240 ,
+                .colorspace = V4L2_COLORSPACE_SRGB,
+                .priv = 1 | MODE_RAW},
+        {320, 240, V4L2_PIX_FMT_SN9C20X_I420, V4L2_FIELD_NONE,
+                .bytesperline = 480,
+                .sizeimage = 480 * 240 ,
+                .colorspace = V4L2_COLORSPACE_SRGB,
+                .priv = 1},
+        {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
+                .bytesperline = 960,
+                .sizeimage = 960 * 480,
+                .colorspace = V4L2_COLORSPACE_JPEG,
+                .priv = 2 | MODE_JPEG},
+        {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
+                .bytesperline = 640,
+                .sizeimage = 640 * 480,
+                .colorspace = V4L2_COLORSPACE_SRGB,
+                .priv = 2 | MODE_RAW},
+        {640, 480, V4L2_PIX_FMT_SN9C20X_I420, V4L2_FIELD_NONE,
+                .bytesperline = 960,
+                .sizeimage = 960 * 480,
+                .colorspace = V4L2_COLORSPACE_SRGB,
+                .priv = 2},
+        {1280, 1024, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
+                .bytesperline = 1280,
+                .sizeimage = (1280 * 1024) + 64,
+                .colorspace = V4L2_COLORSPACE_SRGB,
+                .priv = 3 | MODE_RAW | MODE_SXGA},
+};
+
+static const int hsv_red_x[] = {
+        41,  44,  46,  48,  50,  52,  54,  56,
+        58,  60,  62,  64,  66,  68,  70,  72,
+        74,  76,  78,  80,  81,  83,  85,  87,
+        88,  90,  92,  93,  95,  97,  98, 100,
+        101, 102, 104, 105, 107, 108, 109, 110,
+        112, 113, 114, 115, 116, 117, 118, 119,
+        120, 121, 122, 123, 123, 124, 125, 125,
+        126, 127, 127, 128, 128, 129, 129, 129,
+        130, 130, 130, 130, 131, 131, 131, 131,
+        131, 131, 131, 131, 130, 130, 130, 130,
+        129, 129, 129, 128, 128, 127, 127, 126,
+        125, 125, 124, 123, 122, 122, 121, 120,
+        119, 118, 117, 116, 115, 114, 112, 111,
+        110, 109, 107, 106, 105, 103, 102, 101,
+        99,  98,  96,  94,  93,  91,  90,  88,
+        86,  84,  83,  81,  79,  77,  75,  74,
+        72,  70,  68,  66,  64,  62,  60,  58,
+        56,  54,  52,  49,  47,  45,  43,  41,
+        39,  36,  34,  32,  30,  28,  25,  23,
+        21,  19,  16,  14,  12,   9,   7,   5,
+        3,   0,  -1,  -3,  -6,  -8, -10, -12,
+        -15, -17, -19, -22, -24, -26, -28, -30,
+        -33, -35, -37, -39, -41, -44, -46, -48,
+        -50, -52, -54, -56, -58, -60, -62, -64,
+        -66, -68, -70, -72, -74, -76, -78, -80,
+        -81, -83, -85, -87, -88, -90, -92, -93,
+        -95, -97, -98, -100, -101, -102, -104, -105,
+        -107, -108, -109, -110, -112, -113, -114, -115,
+        -116, -117, -118, -119, -120, -121, -122, -123,
+        -123, -124, -125, -125, -126, -127, -127, -128,
+        -128, -128, -128, -128, -128, -128, -128, -128,
+        -128, -128, -128, -128, -128, -128, -128, -128,
+        -128, -128, -128, -128, -128, -128, -128, -128,
+        -128, -127, -127, -126, -125, -125, -124, -123,
+        -122, -122, -121, -120, -119, -118, -117, -116,
+        -115, -114, -112, -111, -110, -109, -107, -106,
+        -105, -103, -102, -101, -99, -98, -96, -94,
+        -93, -91, -90, -88, -86, -84, -83, -81,
+        -79, -77, -75, -74, -72, -70, -68, -66,
+        -64, -62, -60, -58, -56, -54, -52, -49,
+        -47, -45, -43, -41, -39, -36, -34, -32,
+        -30, -28, -25, -23, -21, -19, -16, -14,
+        -12,  -9,  -7,  -5,  -3,   0,   1,   3,
+        6,   8,  10,  12,  15,  17,  19,  22,
+        24,  26,  28,  30,  33,  35,  37,  39, 41
+};
+
+static const int hsv_red_y[] = {
+        82,  80,  78,  76,  74,  73,  71,  69,
+        67,  65,  63,  61,  58,  56,  54,  52,
+        50,  48,  46,  44,  41,  39,  37,  35,
+        32,  30,  28,  26,  23,  21,  19,  16,
+        14,  12,  10,   7,   5,   3,   0,  -1,
+        -3,  -6,  -8, -10, -13, -15, -17, -19,
+        -22, -24, -26, -29, -31, -33, -35, -38,
+        -40, -42, -44, -46, -48, -51, -53, -55,
+        -57, -59, -61, -63, -65, -67, -69, -71,
+        -73, -75, -77, -79, -81, -82, -84, -86,
+        -88, -89, -91, -93, -94, -96, -98, -99,
+        -101, -102, -104, -105, -106, -108, -109, -110,
+        -112, -113, -114, -115, -116, -117, -119, -120,
+        -120, -121, -122, -123, -124, -125, -126, -126,
+        -127, -128, -128, -128, -128, -128, -128, -128,
+        -128, -128, -128, -128, -128, -128, -128, -128,
+        -128, -128, -128, -128, -128, -128, -128, -128,
+        -128, -128, -128, -128, -128, -128, -128, -128,
+        -127, -127, -126, -125, -125, -124, -123, -122,
+        -121, -120, -119, -118, -117, -116, -115, -114,
+        -113, -111, -110, -109, -107, -106, -105, -103,
+        -102, -100, -99, -97, -96, -94, -92, -91,
+        -89, -87, -85, -84, -82, -80, -78, -76,
+        -74, -73, -71, -69, -67, -65, -63, -61,
+        -58, -56, -54, -52, -50, -48, -46, -44,
+        -41, -39, -37, -35, -32, -30, -28, -26,
+        -23, -21, -19, -16, -14, -12, -10,  -7,
+        -5,  -3,   0,   1,   3,   6,   8,  10,
+        13,  15,  17,  19,  22,  24,  26,  29,
+        31,  33,  35,  38,  40,  42,  44,  46,
+        48,  51,  53,  55,  57,  59,  61,  63,
+        65,  67,  69,  71,  73,  75,  77,  79,
+        81,  82,  84,  86,  88,  89,  91,  93,
+        94,  96,  98,  99, 101, 102, 104, 105,
+        106, 108, 109, 110, 112, 113, 114, 115,
+        116, 117, 119, 120, 120, 121, 122, 123,
+        124, 125, 126, 126, 127, 128, 128, 129,
+        129, 130, 130, 131, 131, 131, 131, 132,
+        132, 132, 132, 132, 132, 132, 132, 132,
+        132, 132, 132, 131, 131, 131, 130, 130,
+        130, 129, 129, 128, 127, 127, 126, 125,
+        125, 124, 123, 122, 121, 120, 119, 118,
+        117, 116, 115, 114, 113, 111, 110, 109,
+        107, 106, 105, 103, 102, 100,  99,  97,
+        96, 94, 92, 91, 89, 87, 85, 84, 82
+};
+
+static const int hsv_green_x[] = {
+        -124, -124, -125, -125, -125, -125, -125, -125,
+        -125, -126, -126, -125, -125, -125, -125, -125,
+        -125, -124, -124, -124, -123, -123, -122, -122,
+        -121, -121, -120, -120, -119, -118, -117, -117,
+        -116, -115, -114, -113, -112, -111, -110, -109,
+        -108, -107, -105, -104, -103, -102, -100, -99,
+        -98, -96, -95, -93, -92, -91, -89, -87,
+        -86, -84, -83, -81, -79, -77, -76, -74,
+        -72, -70, -69, -67, -65, -63, -61, -59,
+        -57, -55, -53, -51, -49, -47, -45, -43,
+        -41, -39, -37, -35, -33, -30, -28, -26,
+        -24, -22, -20, -18, -15, -13, -11,  -9,
+        -7,  -4,  -2,   0,   1,   3,   6,   8,
+        10,  12,  14,  17,  19,  21,  23,  25,
+        27,  29,  32,  34,  36,  38,  40,  42,
+        44,  46,  48,  50,  52,  54,  56,  58,
+        60,  62,  64,  66,  68,  70,  71,  73,
+        75,  77,  78,  80,  82,  83,  85,  87,
+        88,  90,  91,  93,  94,  96,  97,  98,
+        100, 101, 102, 104, 105, 106, 107, 108,
+        109, 111, 112, 113, 113, 114, 115, 116,
+        117, 118, 118, 119, 120, 120, 121, 122,
+        122, 123, 123, 124, 124, 124, 125, 125,
+        125, 125, 125, 125, 125, 126, 126, 125,
+        125, 125, 125, 125, 125, 124, 124, 124,
+        123, 123, 122, 122, 121, 121, 120, 120,
+        119, 118, 117, 117, 116, 115, 114, 113,
+        112, 111, 110, 109, 108, 107, 105, 104,
+        103, 102, 100,  99,  98,  96,  95,  93,
+        92,  91,  89,  87,  86,  84,  83,  81,
+        79,  77,  76,  74,  72,  70,  69,  67,
+        65,  63,  61,  59,  57,  55,  53,  51,
+        49,  47,  45,  43,  41,  39,  37,  35,
+        33,  30,  28,  26,  24,  22,  20,  18,
+        15,  13,  11,   9,   7,   4,   2,   0,
+        -1,  -3,  -6,  -8, -10, -12, -14, -17,
+        -19, -21, -23, -25, -27, -29, -32, -34,
+        -36, -38, -40, -42, -44, -46, -48, -50,
+        -52, -54, -56, -58, -60, -62, -64, -66,
+        -68, -70, -71, -73, -75, -77, -78, -80,
+        -82, -83, -85, -87, -88, -90, -91, -93,
+        -94, -96, -97, -98, -100, -101, -102, -104,
+        -105, -106, -107, -108, -109, -111, -112, -113,
+        -113, -114, -115, -116, -117, -118, -118, -119,
+        -120, -120, -121, -122, -122, -123, -123, -124, -124
+};
+
+static const int hsv_green_y[] = {
+        -100, -99, -98, -97, -95, -94, -93, -91,
+        -90, -89, -87, -86, -84, -83, -81, -80,
+        -78, -76, -75, -73, -71, -70, -68, -66,
+        -64, -63, -61, -59, -57, -55, -53, -51,
+        -49, -48, -46, -44, -42, -40, -38, -36,
+        -34, -32, -30, -27, -25, -23, -21, -19,
+        -17, -15, -13, -11,  -9,  -7,  -4,  -2,
+        0,   1,   3,   5,   7,   9,  11,  14,
+        16,  18,  20,  22,  24,  26,  28,  30,
+        32,  34,  36,  38,  40,  42,  44,  46,
+        48,  50,  52,  54,  56,  58,  59,  61,
+        63,  65,  67,  68,  70,  72,  74,  75,
+        77,  78,  80,  82,  83,  85,  86,  88,
+        89,  90,  92,  93,  95,  96,  97,  98,
+        100, 101, 102, 103, 104, 105, 106, 107,
+        108, 109, 110, 111, 112, 112, 113, 114,
+        115, 115, 116, 116, 117, 117, 118, 118,
+        119, 119, 119, 120, 120, 120, 120, 120,
+        121, 121, 121, 121, 121, 121, 120, 120,
+        120, 120, 120, 119, 119, 119, 118, 118,
+        117, 117, 116, 116, 115, 114, 114, 113,
+        112, 111, 111, 110, 109, 108, 107, 106,
+        105, 104, 103, 102, 100,  99,  98,  97,
+        95,  94,  93,  91,  90,  89,  87,  86,
+        84,  83,  81,  80,  78,  76,  75,  73,
+        71,  70,  68,  66,  64,  63,  61,  59,
+        57,  55,  53,  51,  49,  48,  46,  44,
+        42,  40,  38,  36,  34,  32,  30,  27,
+        25,  23,  21,  19,  17,  15,  13,  11,
+        9,   7,   4,   2,   0,  -1,  -3,  -5,
+        -7,  -9, -11, -14, -16, -18, -20, -22,
+        -24, -26, -28, -30, -32, -34, -36, -38,
+        -40, -42, -44, -46, -48, -50, -52, -54,
+        -56, -58, -59, -61, -63, -65, -67, -68,
+        -70, -72, -74, -75, -77, -78, -80, -82,
+        -83, -85, -86, -88, -89, -90, -92, -93,
+        -95, -96, -97, -98, -100, -101, -102, -103,
+        -104, -105, -106, -107, -108, -109, -110, -111,
+        -112, -112, -113, -114, -115, -115, -116, -116,
+        -117, -117, -118, -118, -119, -119, -119, -120,
+        -120, -120, -120, -120, -121, -121, -121, -121,
+        -121, -121, -120, -120, -120, -120, -120, -119,
+        -119, -119, -118, -118, -117, -117, -116, -116,
+        -115, -114, -114, -113, -112, -111, -111, -110,
+        -109, -108, -107, -106, -105, -104, -103, -102, -100
+};
+
+static const int hsv_blue_x[] = {
+        112, 113, 114, 114, 115, 116, 117, 117,
+        118, 118, 119, 119, 120, 120, 120, 121,
+        121, 121, 122, 122, 122, 122, 122, 122,
+        122, 122, 122, 122, 122, 122, 121, 121,
+        121, 120, 120, 120, 119, 119, 118, 118,
+        117, 116, 116, 115, 114, 113, 113, 112,
+        111, 110, 109, 108, 107, 106, 105, 104,
+        103, 102, 100,  99,  98,  97,  95,  94,
+        93,  91,  90,  88,  87,  85,  84,  82,
+        80,  79,  77,  76,  74,  72,  70,  69,
+        67,  65,  63,  61,  60,  58,  56,  54,
+        52,  50,  48,  46,  44,  42,  40,  38,
+        36,  34,  32,  30,  28,  26,  24,  22,
+        19,  17,  15,  13,  11,   9,   7,   5,
+        2,   0,  -1,  -3,  -5,  -7,  -9, -12,
+        -14, -16, -18, -20, -22, -24, -26, -28,
+        -31, -33, -35, -37, -39, -41, -43, -45,
+        -47, -49, -51, -53, -54, -56, -58, -60,
+        -62, -64, -66, -67, -69, -71, -73, -74,
+        -76, -78, -79, -81, -83, -84, -86, -87,
+        -89, -90, -92, -93, -94, -96, -97, -98,
+        -99, -101, -102, -103, -104, -105, -106, -107,
+        -108, -109, -110, -111, -112, -113, -114, -114,
+        -115, -116, -117, -117, -118, -118, -119, -119,
+        -120, -120, -120, -121, -121, -121, -122, -122,
+        -122, -122, -122, -122, -122, -122, -122, -122,
+        -122, -122, -121, -121, -121, -120, -120, -120,
+        -119, -119, -118, -118, -117, -116, -116, -115,
+        -114, -113, -113, -112, -111, -110, -109, -108,
+        -107, -106, -105, -104, -103, -102, -100, -99,
+        -98, -97, -95, -94, -93, -91, -90, -88,
+        -87, -85, -84, -82, -80, -79, -77, -76,
+        -74, -72, -70, -69, -67, -65, -63, -61,
+        -60, -58, -56, -54, -52, -50, -48, -46,
+        -44, -42, -40, -38, -36, -34, -32, -30,
+        -28, -26, -24, -22, -19, -17, -15, -13,
+        -11,  -9,  -7,  -5,  -2,   0,   1,   3,
+        5,   7,   9,  12,  14,  16,  18,  20,
+        22,  24,  26,  28,  31,  33,  35,  37,
+        39,  41,  43,  45,  47,  49,  51,  53,
+        54,  56,  58,  60,  62,  64,  66,  67,
+        69,  71,  73,  74,  76,  78,  79,  81,
+        83,  84,  86,  87,  89,  90,  92,  93,
+        94,  96,  97,  98,  99, 101, 102, 103,
+        104, 105, 106, 107, 108, 109, 110, 111, 112
+};
+
+static const int hsv_blue_y[] = {
+        -11, -13, -15, -17, -19, -21, -23, -25,
+        -27, -29, -31, -33, -35, -37, -39, -41,
+        -43, -45, -46, -48, -50, -52, -54, -55,
+        -57, -59, -61, -62, -64, -66, -67, -69,
+        -71, -72, -74, -75, -77, -78, -80, -81,
+        -83, -84, -86, -87, -88, -90, -91, -92,
+        -93, -95, -96, -97, -98, -99, -100, -101,
+        -102, -103, -104, -105, -106, -106, -107, -108,
+        -109, -109, -110, -111, -111, -112, -112, -113,
+        -113, -114, -114, -114, -115, -115, -115, -115,
+        -116, -116, -116, -116, -116, -116, -116, -116,
+        -116, -115, -115, -115, -115, -114, -114, -114,
+        -113, -113, -112, -112, -111, -111, -110, -110,
+        -109, -108, -108, -107, -106, -105, -104, -103,
+        -102, -101, -100, -99, -98, -97, -96, -95,
+        -94, -93, -91, -90, -89, -88, -86, -85,
+        -84, -82, -81, -79, -78, -76, -75, -73,
+        -71, -70, -68, -67, -65, -63, -62, -60,
+        -58, -56, -55, -53, -51, -49, -47, -45,
+        -44, -42, -40, -38, -36, -34, -32, -30,
+        -28, -26, -24, -22, -20, -18, -16, -14,
+        -12, -10,  -8,  -6,  -4,  -2,   0,   1,
+        3,   5,   7,   9,  11,  13,  15,  17,
+        19,  21,  23,  25,  27,  29,  31,  33,
+        35,  37,  39,  41,  43,  45,  46,  48,
+        50,  52,  54,  55,  57,  59,  61,  62,
+        64,  66,  67,  69,  71,  72,  74,  75,
+        77,  78,  80,  81,  83,  84,  86,  87,
+        88,  90,  91,  92,  93,  95,  96,  97,
+        98,  99, 100, 101, 102, 103, 104, 105,
+        106, 106, 107, 108, 109, 109, 110, 111,
+        111, 112, 112, 113, 113, 114, 114, 114,
+        115, 115, 115, 115, 116, 116, 116, 116,
+        116, 116, 116, 116, 116, 115, 115, 115,
+        115, 114, 114, 114, 113, 113, 112, 112,
+        111, 111, 110, 110, 109, 108, 108, 107,
+        106, 105, 104, 103, 102, 101, 100,  99,
+        98,  97,  96,  95,  94,  93,  91,  90,
+        89,  88,  86,  85,  84,  82,  81,  79,
+        78,  76,  75,  73,  71,  70,  68,  67,
+        65,  63,  62,  60,  58,  56,  55,  53,
+        51,  49,  47,  45,  44,  42,  40,  38,
+        36,  34,  32,  30,  28,  26,  24,  22,
+        20,  18,  16,  14,  12,  10,   8,   6,
+        4,   2,   0,  -1,  -3,  -5,  -7,  -9, -11
+};
+
+static u16 i2c_ident[] = {
+        V4L2_IDENT_OV9650,
+        V4L2_IDENT_OV9655,
+        V4L2_IDENT_SOI968,
+        V4L2_IDENT_OV7660,
+        V4L2_IDENT_OV7670,
+        V4L2_IDENT_MT9V011,
+        V4L2_IDENT_MT9V111,
+        V4L2_IDENT_MT9V112,
+        V4L2_IDENT_MT9M001C12ST,
+        V4L2_IDENT_MT9M111,
+        V4L2_IDENT_HV7131R,
+};
+
+static u16 bridge_init[][2] = {
+        {0x1000, 0x78}, {0x1001, 0x40}, {0x1002, 0x1c},
+        {0x1020, 0x80}, {0x1061, 0x01}, {0x1067, 0x40},
+        {0x1068, 0x30}, {0x1069, 0x20}, {0x106a, 0x10},
+        {0x106b, 0x08}, {0x1188, 0x87}, {0x11a1, 0x00},
+        {0x11a2, 0x00}, {0x11a3, 0x6a}, {0x11a4, 0x50},
+        {0x11ab, 0x00}, {0x11ac, 0x00}, {0x11ad, 0x50},
+        {0x11ae, 0x3c}, {0x118a, 0x04}, {0x0395, 0x04},
+        {0x11b8, 0x3a}, {0x118b, 0x0e}, {0x10f7, 0x05},
+        {0x10f8, 0x14}, {0x10fa, 0xff}, {0x10f9, 0x00},
+        {0x11ba, 0x0a}, {0x11a5, 0x2d}, {0x11a6, 0x2d},
+        {0x11a7, 0x3a}, {0x11a8, 0x05}, {0x11a9, 0x04},
+        {0x11aa, 0x3f}, {0x11af, 0x28}, {0x11b0, 0xd8},
+        {0x11b1, 0x14}, {0x11b2, 0xec}, {0x11b3, 0x32},
+        {0x11b4, 0xdd}, {0x11b5, 0x32}, {0x11b6, 0xdd},
+        {0x10e0, 0x2c}, {0x11bc, 0x40}, {0x11bd, 0x01},
+        {0x11be, 0xf0}, {0x11bf, 0x00}, {0x118c, 0x1f},
+        {0x118d, 0x1f}, {0x118e, 0x1f}, {0x118f, 0x1f},
+        {0x1180, 0x01}, {0x1181, 0x00}, {0x1182, 0x01},
+        {0x1183, 0x00}, {0x1184, 0x50}, {0x1185, 0x80}
+};
+
+/* Gain = (bit[3:0] / 16 + 1) * (bit[4] + 1) * (bit[5] + 1) * (bit[6] + 1) */
+static u8 ov_gain[] = {
+        0x00 /* 1x */, 0x04 /* 1.25x */, 0x08 /* 1.5x */, 0x0c /* 1.75x */,
+        0x10 /* 2x */, 0x12 /* 2.25x */, 0x14 /* 2.5x */, 0x16 /* 2.75x */,
+        0x18 /* 3x */, 0x1a /* 3.25x */, 0x1c /* 3.5x */, 0x1e /* 3.75x */,
+        0x30 /* 4x */, 0x31 /* 4.25x */, 0x32 /* 4.5x */, 0x33 /* 4.75x */,
+        0x34 /* 5x */, 0x35 /* 5.25x */, 0x36 /* 5.5x */, 0x37 /* 5.75x */,
+        0x38 /* 6x */, 0x39 /* 6.25x */, 0x3a /* 6.5x */, 0x3b /* 6.75x */,
+        0x3c /* 7x */, 0x3d /* 7.25x */, 0x3e /* 7.5x */, 0x3f /* 7.75x */,
+        0x70 /* 8x */
+};
+
+/* Gain = (bit[8] + 1) * (bit[7] + 1) * (bit[6:0] * 0.03125) */
+static u16 micron1_gain[] = {
+        /* 1x   1.25x   1.5x    1.75x */
+        0x0020, 0x0028, 0x0030, 0x0038,
+        /* 2x   2.25x   2.5x    2.75x */
+        0x00a0, 0x00a4, 0x00a8, 0x00ac,
+        /* 3x   3.25x   3.5x    3.75x */
+        0x00b0, 0x00b4, 0x00b8, 0x00bc,
+        /* 4x   4.25x   4.5x    4.75x */
+        0x00c0, 0x00c4, 0x00c8, 0x00cc,
+        /* 5x   5.25x   5.5x    5.75x */
+        0x00d0, 0x00d4, 0x00d8, 0x00dc,
+        /* 6x   6.25x   6.5x    6.75x */
+        0x00e0, 0x00e4, 0x00e8, 0x00ec,
+        /* 7x   7.25x   7.5x    7.75x */
+        0x00f0, 0x00f4, 0x00f8, 0x00fc,
+        /* 8x */
+        0x01c0
+};
+
+/* mt9m001 sensor uses a different gain formula then other micron sensors */
+/* Gain = (bit[6] + 1) * (bit[5-0] * 0.125) */
+static u16 micron2_gain[] = {
+        /* 1x   1.25x   1.5x    1.75x */
+        0x0008, 0x000a, 0x000c, 0x000e,
+        /* 2x   2.25x   2.5x    2.75x */
+        0x0010, 0x0012, 0x0014, 0x0016,
+        /* 3x   3.25x   3.5x    3.75x */
+        0x0018, 0x001a, 0x001c, 0x001e,
+        /* 4x   4.25x   4.5x    4.75x */
+        0x0020, 0x0051, 0x0052, 0x0053,
+        /* 5x   5.25x   5.5x    5.75x */
+        0x0054, 0x0055, 0x0056, 0x0057,
+        /* 6x   6.25x   6.5x    6.75x */
+        0x0058, 0x0059, 0x005a, 0x005b,
+        /* 7x   7.25x   7.5x    7.75x */
+        0x005c, 0x005d, 0x005e, 0x005f,
+        /* 8x */
+        0x0060
+};
+
+/* Gain = .5 + bit[7:0] / 16 */
+static u8 hv7131r_gain[] = {
+        0x08 /* 1x */, 0x0c /* 1.25x */, 0x10 /* 1.5x */, 0x14 /* 1.75x */,
+        0x18 /* 2x */, 0x1c /* 2.25x */, 0x20 /* 2.5x */, 0x24 /* 2.75x */,
+        0x28 /* 3x */, 0x2c /* 3.25x */, 0x30 /* 3.5x */, 0x34 /* 3.75x */,
+        0x38 /* 4x */, 0x3c /* 4.25x */, 0x40 /* 4.5x */, 0x44 /* 4.75x */,
+        0x48 /* 5x */, 0x4c /* 5.25x */, 0x50 /* 5.5x */, 0x54 /* 5.75x */,
+        0x58 /* 6x */, 0x5c /* 6.25x */, 0x60 /* 6.5x */, 0x64 /* 6.75x */,
+        0x68 /* 7x */, 0x6c /* 7.25x */, 0x70 /* 7.5x */, 0x74 /* 7.75x */,
+        0x78 /* 8x */
+};
+
+static u8 soi968_init[][2] = {
+        {0x12, 0x80}, {0x0c, 0x00}, {0x0f, 0x1f},
+        {0x11, 0x80}, {0x38, 0x52}, {0x1e, 0x00},
+        {0x33, 0x08}, {0x35, 0x8c}, {0x36, 0x0c},
+        {0x37, 0x04}, {0x45, 0x04}, {0x47, 0xff},
+        {0x3e, 0x00}, {0x3f, 0x00}, {0x3b, 0x20},
+        {0x3a, 0x96}, {0x3d, 0x0a}, {0x14, 0x8e},
+        {0x13, 0x8a}, {0x12, 0x40}, {0x17, 0x13},
+        {0x18, 0x63}, {0x19, 0x01}, {0x1a, 0x79},
+        {0x32, 0x24}, {0x03, 0x00}, {0x11, 0x40},
+        {0x2a, 0x10}, {0x2b, 0xe0}, {0x10, 0x32},
+        {0x00, 0x00}, {0x01, 0x80}, {0x02, 0x80},
+};
+
+static u8 ov7660_init[][2] = {
+        {0x0e, 0x80}, {0x0d, 0x08}, {0x0f, 0xc3},
+        {0x04, 0xc3}, {0x10, 0x40}, {0x11, 0x40},
+        {0x12, 0x05}, {0x13, 0xba}, {0x14, 0x2a},
+        {0x37, 0x0f}, {0x38, 0x02}, {0x39, 0x43},
+        {0x3a, 0x00}, {0x69, 0x90}, {0x2d, 0xf6},
+        {0x2e, 0x0b}, {0x01, 0x78}, {0x02, 0x50},
+};
+
+static u8 ov7670_init[][2] = {
+        {0x12, 0x80}, {0x11, 0x80}, {0x3a, 0x04}, {0x12, 0x01},
+        {0x32, 0xb6}, {0x03, 0x0a}, {0x0c, 0x00}, {0x3e, 0x00},
+        {0x70, 0x3a}, {0x71, 0x35}, {0x72, 0x11}, {0x73, 0xf0},
+        {0xa2, 0x02}, {0x13, 0xe0}, {0x00, 0x00}, {0x10, 0x00},
+        {0x0d, 0x40}, {0x14, 0x28}, {0xa5, 0x05}, {0xab, 0x07},
+        {0x24, 0x95}, {0x25, 0x33}, {0x26, 0xe3}, {0x9f, 0x75},
+        {0xa0, 0x65}, {0xa1, 0x0b}, {0xa6, 0xd8}, {0xa7, 0xd8},
+        {0xa8, 0xf0}, {0xa9, 0x90}, {0xaa, 0x94}, {0x13, 0xe5},
+        {0x0e, 0x61}, {0x0f, 0x4b}, {0x16, 0x02}, {0x1e, 0x27},
+        {0x21, 0x02}, {0x22, 0x91}, {0x29, 0x07}, {0x33, 0x0b},
+        {0x35, 0x0b}, {0x37, 0x1d}, {0x38, 0x71}, {0x39, 0x2a},
+        {0x3c, 0x78}, {0x4d, 0x40}, {0x4e, 0x20}, {0x69, 0x00},
+        {0x74, 0x19}, {0x8d, 0x4f}, {0x8e, 0x00}, {0x8f, 0x00},
+        {0x90, 0x00}, {0x91, 0x00}, {0x96, 0x00}, {0x9a, 0x80},
+        {0xb0, 0x84}, {0xb1, 0x0c}, {0xb2, 0x0e}, {0xb3, 0x82},
+        {0xb8, 0x0a}, {0x43, 0x0a}, {0x44, 0xf0}, {0x45, 0x20},
+        {0x46, 0x7d}, {0x47, 0x29}, {0x48, 0x4a}, {0x59, 0x8c},
+        {0x5a, 0xa5}, {0x5b, 0xde}, {0x5c, 0x96}, {0x5d, 0x66},
+        {0x5e, 0x10}, {0x6c, 0x0a}, {0x6d, 0x55}, {0x6e, 0x11},
+        {0x6f, 0x9e}, {0x6a, 0x40}, {0x01, 0x40}, {0x02, 0x40},
+        {0x13, 0xe7}, {0x4f, 0x6e}, {0x50, 0x70}, {0x51, 0x02},
+        {0x52, 0x1d}, {0x53, 0x56}, {0x54, 0x73}, {0x55, 0x0a},
+        {0x56, 0x55}, {0x57, 0x80}, {0x58, 0x9e}, {0x41, 0x08},
+        {0x3f, 0x02}, {0x75, 0x03}, {0x76, 0x63}, {0x4c, 0x04},
+        {0x77, 0x06}, {0x3d, 0x02}, {0x4b, 0x09}, {0xc9, 0x30},
+        {0x41, 0x08}, {0x56, 0x48}, {0x34, 0x11}, {0xa4, 0x88},
+        {0x96, 0x00}, {0x97, 0x30}, {0x98, 0x20}, {0x99, 0x30},
+        {0x9a, 0x84}, {0x9b, 0x29}, {0x9c, 0x03}, {0x9d, 0x99},
+        {0x9e, 0x7f}, {0x78, 0x04}, {0x79, 0x01}, {0xc8, 0xf0},
+        {0x79, 0x0f}, {0xc8, 0x00}, {0x79, 0x10}, {0xc8, 0x7e},
+        {0x79, 0x0a}, {0xc8, 0x80}, {0x79, 0x0b}, {0xc8, 0x01},
+        {0x79, 0x0c}, {0xc8, 0x0f}, {0x79, 0x0d}, {0xc8, 0x20},
+        {0x79, 0x09}, {0xc8, 0x80}, {0x79, 0x02}, {0xc8, 0xc0},
+        {0x79, 0x03}, {0xc8, 0x40}, {0x79, 0x05}, {0xc8, 0x30},
+        {0x79, 0x26}, {0x62, 0x20}, {0x63, 0x00}, {0x64, 0x06},
+        {0x65, 0x00}, {0x66, 0x05}, {0x94, 0x05}, {0x95, 0x0a},
+        {0x17, 0x13}, {0x18, 0x01}, {0x19, 0x02}, {0x1a, 0x7a},
+        {0x46, 0x59}, {0x47, 0x30}, {0x58, 0x9a}, {0x59, 0x84},
+        {0x5a, 0x91}, {0x5b, 0x57}, {0x5c, 0x75}, {0x5d, 0x6d},
+        {0x5e, 0x13}, {0x64, 0x07}, {0x94, 0x07}, {0x95, 0x0d},
+        {0xa6, 0xdf}, {0xa7, 0xdf}, {0x48, 0x4d}, {0x51, 0x00},
+        {0x6b, 0x0a}, {0x11, 0x80}, {0x2a, 0x00}, {0x2b, 0x00},
+        {0x92, 0x00}, {0x93, 0x00}, {0x55, 0x0a}, {0x56, 0x60},
+        {0x4f, 0x6e}, {0x50, 0x70}, {0x51, 0x00}, {0x52, 0x1d},
+        {0x53, 0x56}, {0x54, 0x73}, {0x58, 0x9a}, {0x4f, 0x6e},
+        {0x50, 0x70}, {0x51, 0x00}, {0x52, 0x1d}, {0x53, 0x56},
+        {0x54, 0x73}, {0x58, 0x9a}, {0x3f, 0x01}, {0x7b, 0x03},
+        {0x7c, 0x09}, {0x7d, 0x16}, {0x7e, 0x38}, {0x7f, 0x47},
+        {0x80, 0x53}, {0x81, 0x5e}, {0x82, 0x6a}, {0x83, 0x74},
+        {0x84, 0x80}, {0x85, 0x8c}, {0x86, 0x9b}, {0x87, 0xb2},
+        {0x88, 0xcc}, {0x89, 0xe5}, {0x7a, 0x24}, {0x3b, 0x00},
+        {0x9f, 0x76}, {0xa0, 0x65}, {0x13, 0xe2}, {0x6b, 0x0a},
+        {0x11, 0x80}, {0x2a, 0x00}, {0x2b, 0x00}, {0x92, 0x00},
+        {0x93, 0x00},
+};
+
+static u8 ov9650_init[][2] = {
+        {0x12, 0x80}, {0x00, 0x00}, {0x01, 0x78},
+        {0x02, 0x78}, {0x03, 0x36}, {0x04, 0x03},
+        {0x05, 0x00}, {0x06, 0x00}, {0x08, 0x00},
+        {0x09, 0x01}, {0x0c, 0x00}, {0x0d, 0x00},
+        {0x0e, 0xa0}, {0x0f, 0x52}, {0x10, 0x7c},
+        {0x11, 0x80}, {0x12, 0x45}, {0x13, 0xc2},
+        {0x14, 0x2e}, {0x15, 0x00}, {0x16, 0x07},
+        {0x17, 0x24}, {0x18, 0xc5}, {0x19, 0x00},
+        {0x1a, 0x3c}, {0x1b, 0x00}, {0x1e, 0x04},
+        {0x1f, 0x00}, {0x24, 0x78}, {0x25, 0x68},
+        {0x26, 0xd4}, {0x27, 0x80}, {0x28, 0x80},
+        {0x29, 0x30}, {0x2a, 0x00}, {0x2b, 0x00},
+        {0x2c, 0x80}, {0x2d, 0x00}, {0x2e, 0x00},
+        {0x2f, 0x00}, {0x30, 0x08}, {0x31, 0x30},
+        {0x32, 0x84}, {0x33, 0xe2}, {0x34, 0xbf},
+        {0x35, 0x81}, {0x36, 0xf9}, {0x37, 0x00},
+        {0x38, 0x93}, {0x39, 0x50}, {0x3a, 0x01},
+        {0x3b, 0x01}, {0x3c, 0x73}, {0x3d, 0x19},
+        {0x3e, 0x0b}, {0x3f, 0x80}, {0x40, 0xc1},
+        {0x41, 0x00}, {0x42, 0x08}, {0x67, 0x80},
+        {0x68, 0x80}, {0x69, 0x40}, {0x6a, 0x00},
+        {0x6b, 0x0a}, {0x8b, 0x06}, {0x8c, 0x20},
+        {0x8d, 0x00}, {0x8e, 0x00}, {0x8f, 0xdf},
+        {0x92, 0x00}, {0x93, 0x00}, {0x94, 0x88},
+        {0x95, 0x88}, {0x96, 0x04}, {0xa1, 0x00},
+        {0xa5, 0x80}, {0xa8, 0x80}, {0xa9, 0xb8},
+        {0xaa, 0x92}, {0xab, 0x0a},
+};
+
+static u8 ov9655_init[][2] = {
+        {0x12, 0x80}, {0x12, 0x01}, {0x0d, 0x00}, {0x0e, 0x61},
+        {0x11, 0x80}, {0x13, 0xba}, {0x14, 0x2e}, {0x16, 0x24},
+        {0x1e, 0x04}, {0x1e, 0x04}, {0x1e, 0x04}, {0x27, 0x08},
+        {0x28, 0x08}, {0x29, 0x15}, {0x2c, 0x08}, {0x32, 0xbf},
+        {0x34, 0x3d}, {0x35, 0x00}, {0x36, 0xf8}, {0x38, 0x12},
+        {0x39, 0x57}, {0x3a, 0x00}, {0x3b, 0xcc}, {0x3c, 0x0c},
+        {0x3d, 0x19}, {0x3e, 0x0c}, {0x3f, 0x01}, {0x41, 0x40},
+        {0x42, 0x80}, {0x45, 0x46}, {0x46, 0x62}, {0x47, 0x2a},
+        {0x48, 0x3c}, {0x4a, 0xf0}, {0x4b, 0xdc}, {0x4c, 0xdc},
+        {0x4d, 0xdc}, {0x4e, 0xdc}, {0x69, 0x02}, {0x6c, 0x04},
+        {0x6f, 0x9e}, {0x70, 0x05}, {0x71, 0x78}, {0x77, 0x02},
+        {0x8a, 0x23}, {0x8c, 0x0d}, {0x90, 0x7e}, {0x91, 0x7c},
+        {0x9f, 0x6e}, {0xa0, 0x6e}, {0xa5, 0x68}, {0xa6, 0x60},
+        {0xa8, 0xc1}, {0xa9, 0xfa}, {0xaa, 0x92}, {0xab, 0x04},
+        {0xac, 0x80}, {0xad, 0x80}, {0xae, 0x80}, {0xaf, 0x80},
+        {0xb2, 0xf2}, {0xb3, 0x20}, {0xb5, 0x00}, {0xb6, 0xaf},
+        {0xbb, 0xae}, {0xbc, 0x44}, {0xbd, 0x44}, {0xbe, 0x3b},
+        {0xbf, 0x3a}, {0xc0, 0xe2}, {0xc1, 0xc8}, {0xc2, 0x01},
+        {0xc4, 0x00}, {0xc6, 0x85}, {0xc7, 0x81}, {0xc9, 0xe0},
+        {0xca, 0xe8}, {0xcc, 0xd8}, {0xcd, 0x93}, {0x12, 0x61},
+        {0x36, 0xfa}, {0x8c, 0x8d}, {0xc0, 0xaa}, {0x69, 0x0a},
+        {0x03, 0x12}, {0x17, 0x14}, {0x18, 0x00}, {0x19, 0x01},
+        {0x1a, 0x3d}, {0x32, 0xbf}, {0x11, 0x80}, {0x2a, 0x10},
+        {0x2b, 0x0a}, {0x92, 0x00}, {0x93, 0x00}, {0x1e, 0x04},
+        {0x1e, 0x04}, {0x10, 0x7c}, {0x04, 0x03}, {0xa1, 0x00},
+        {0x2d, 0x00}, {0x2e, 0x00}, {0x00, 0x00}, {0x01, 0x80},
+        {0x02, 0x80}, {0x12, 0x61}, {0x36, 0xfa}, {0x8c, 0x8d},
+        {0xc0, 0xaa}, {0x69, 0x0a}, {0x03, 0x12}, {0x17, 0x14},
+        {0x18, 0x00}, {0x19, 0x01}, {0x1a, 0x3d}, {0x32, 0xbf},
+        {0x11, 0x80}, {0x2a, 0x10}, {0x2b, 0x0a}, {0x92, 0x00},
+        {0x93, 0x00}, {0x04, 0x01}, {0x10, 0x1f}, {0xa1, 0x00},
+        {0x00, 0x0a}, {0xa1, 0x00}, {0x10, 0x5d}, {0x04, 0x03},
+        {0x00, 0x01}, {0xa1, 0x00}, {0x10, 0x7c}, {0x04, 0x03},
+        {0x00, 0x03}, {0x00, 0x0a}, {0x00, 0x10}, {0x00, 0x13},
+};
+
+static u16 mt9v112_init[][2] = {
+        {0xf0, 0x0000}, {0x0d, 0x0021}, {0x0d, 0x0020},
+        {0x34, 0xc019}, {0x0a, 0x0011}, {0x0b, 0x000b},
+        {0x20, 0x0703}, {0x35, 0x2022}, {0xf0, 0x0001},
+        {0x05, 0x0000}, {0x06, 0x340c}, {0x3b, 0x042a},
+        {0x3c, 0x0400}, {0xf0, 0x0002}, {0x2e, 0x0c58},
+        {0x5b, 0x0001}, {0xc8, 0x9f0b}, {0xf0, 0x0001},
+        {0x9b, 0x5300}, {0xf0, 0x0000}, {0x2b, 0x0020},
+        {0x2c, 0x002a}, {0x2d, 0x0032}, {0x2e, 0x0020},
+        {0x09, 0x01dc}, {0x01, 0x000c}, {0x02, 0x0020},
+        {0x03, 0x01e0}, {0x04, 0x0280}, {0x06, 0x000c},
+        {0x05, 0x0098}, {0x20, 0x0703}, {0x09, 0x01f2},
+        {0x2b, 0x00a0}, {0x2c, 0x00a0}, {0x2d, 0x00a0},
+        {0x2e, 0x00a0}, {0x01, 0x000c}, {0x02, 0x0020},
+        {0x03, 0x01e0}, {0x04, 0x0280}, {0x06, 0x000c},
+        {0x05, 0x0098}, {0x09, 0x01c1}, {0x2b, 0x00ae},
+        {0x2c, 0x00ae}, {0x2d, 0x00ae}, {0x2e, 0x00ae},
+};
+
+static u16 mt9v111_init[][2] = {
+        {0x01, 0x0004}, {0x0d, 0x0001}, {0x0d, 0x0000},
+        {0x01, 0x0001}, {0x02, 0x0016}, {0x03, 0x01e1},
+        {0x04, 0x0281}, {0x05, 0x0004}, {0x07, 0x3002},
+        {0x21, 0x0000}, {0x25, 0x4024}, {0x26, 0xff03},
+        {0x27, 0xff10}, {0x2b, 0x7828}, {0x2c, 0xb43c},
+        {0x2d, 0xf0a0}, {0x2e, 0x0c64}, {0x2f, 0x0064},
+        {0x67, 0x4010}, {0x06, 0x301e}, {0x08, 0x0480},
+        {0x01, 0x0004}, {0x02, 0x0016}, {0x03, 0x01e6},
+        {0x04, 0x0286}, {0x05, 0x0004}, {0x06, 0x0000},
+        {0x07, 0x3002}, {0x08, 0x0008}, {0x0c, 0x0000},
+        {0x0d, 0x0000}, {0x0e, 0x0000}, {0x0f, 0x0000},
+        {0x10, 0x0000}, {0x11, 0x0000}, {0x12, 0x00b0},
+        {0x13, 0x007c}, {0x14, 0x0000}, {0x15, 0x0000},
+        {0x16, 0x0000}, {0x17, 0x0000}, {0x18, 0x0000},
+        {0x19, 0x0000}, {0x1a, 0x0000}, {0x1b, 0x0000},
+        {0x1c, 0x0000}, {0x1d, 0x0000}, {0x30, 0x0000},
+        {0x30, 0x0005}, {0x31, 0x0000}, {0x02, 0x0016},
+        {0x03, 0x01e1}, {0x04, 0x0281}, {0x05, 0x0004},
+        {0x06, 0x0000}, {0x07, 0x3002}, {0x06, 0x002d},
+        {0x05, 0x0004}, {0x09, 0x0064}, {0x2b, 0x00a0},
+        {0x2c, 0x00a0}, {0x2d, 0x00a0}, {0x2e, 0x00a0},
+        {0x02, 0x0016}, {0x03, 0x01e1}, {0x04, 0x0281},
+        {0x05, 0x0004}, {0x06, 0x002d}, {0x07, 0x3002},
+        {0x0e, 0x0008}, {0x06, 0x002d}, {0x05, 0x0004},
+};
+
+static u16 mt9v011_init[][2] = {
+        {0x07, 0x0002}, {0x0d, 0x0001}, {0x0d, 0x0000},
+        {0x01, 0x0008}, {0x02, 0x0016}, {0x03, 0x01e1},
+        {0x04, 0x0281}, {0x05, 0x0083}, {0x06, 0x0006},
+        {0x0d, 0x0002}, {0x0a, 0x0000}, {0x0b, 0x0000},
+        {0x0c, 0x0000}, {0x0d, 0x0000}, {0x0e, 0x0000},
+        {0x0f, 0x0000}, {0x10, 0x0000}, {0x11, 0x0000},
+        {0x12, 0x0000}, {0x13, 0x0000}, {0x14, 0x0000},
+        {0x15, 0x0000}, {0x16, 0x0000}, {0x17, 0x0000},
+        {0x18, 0x0000}, {0x19, 0x0000}, {0x1a, 0x0000},
+        {0x1b, 0x0000}, {0x1c, 0x0000}, {0x1d, 0x0000},
+        {0x32, 0x0000}, {0x20, 0x1101}, {0x21, 0x0000},
+        {0x22, 0x0000}, {0x23, 0x0000}, {0x24, 0x0000},
+        {0x25, 0x0000}, {0x26, 0x0000}, {0x27, 0x0024},
+        {0x2f, 0xf7b0}, {0x30, 0x0005}, {0x31, 0x0000},
+        {0x32, 0x0000}, {0x33, 0x0000}, {0x34, 0x0100},
+        {0x3d, 0x068f}, {0x40, 0x01e0}, {0x41, 0x00d1},
+        {0x44, 0x0082}, {0x5a, 0x0000}, {0x5b, 0x0000},
+        {0x5c, 0x0000}, {0x5d, 0x0000}, {0x5e, 0x0000},
+        {0x5f, 0xa31d}, {0x62, 0x0611}, {0x0a, 0x0000},
+        {0x06, 0x0029}, {0x05, 0x0009}, {0x20, 0x1101},
+        {0x20, 0x1101}, {0x09, 0x0064}, {0x07, 0x0003},
+        {0x2b, 0x0033}, {0x2c, 0x00a0}, {0x2d, 0x00a0},
+        {0x2e, 0x0033}, {0x07, 0x0002}, {0x06, 0x0000},
+        {0x06, 0x0029}, {0x05, 0x0009},
+};
+
+static u16 mt9m001_init[][2] = {
+        {0x0d, 0x0001}, {0x0d, 0x0000}, {0x01, 0x000e},
+        {0x02, 0x0014}, {0x03, 0x03c1}, {0x04, 0x0501},
+        {0x05, 0x0083}, {0x06, 0x0006}, {0x0d, 0x0002},
+        {0x0a, 0x0000}, {0x0c, 0x0000}, {0x11, 0x0000},
+        {0x1e, 0x8000}, {0x5f, 0x8904}, {0x60, 0x0000},
+        {0x61, 0x0000}, {0x62, 0x0498}, {0x63, 0x0000},
+        {0x64, 0x0000}, {0x20, 0x111d}, {0x06, 0x00f2},
+        {0x05, 0x0013}, {0x09, 0x10f2}, {0x07, 0x0003},
+        {0x2b, 0x002a}, {0x2d, 0x002a}, {0x2c, 0x002a},
+        {0x2e, 0x0029}, {0x07, 0x0002},
+};
+
+static u16 mt9m111_init[][2] = {
+        {0xf0, 0x0000}, {0x0d, 0x0008}, {0x0d, 0x0009},
+        {0x0d, 0x0008}, {0xf0, 0x0001}, {0x3a, 0x4300},
+        {0x9b, 0x4300}, {0xa1, 0x0280}, {0xa4, 0x0200},
+        {0x06, 0x308e}, {0xf0, 0x0000},
+};
+
+static u8 hv7131r_init[][2] = {
+        {0x02, 0x08}, {0x02, 0x00}, {0x01, 0x08},
+        {0x02, 0x00}, {0x20, 0x00}, {0x21, 0xd0},
+        {0x22, 0x00}, {0x23, 0x09}, {0x01, 0x08},
+        {0x01, 0x08}, {0x01, 0x08}, {0x25, 0x07},
+        {0x26, 0xc3}, {0x27, 0x50}, {0x30, 0x62},
+        {0x31, 0x10}, {0x32, 0x06}, {0x33, 0x10},
+        {0x20, 0x00}, {0x21, 0xd0}, {0x22, 0x00},
+        {0x23, 0x09}, {0x01, 0x08},
+};
+
+int reg_r(struct gspca_dev *gspca_dev, u16 reg, u16 length)
+{
+        struct usb_device *dev = gspca_dev->dev;
+        int result;
+        result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+                        0x00,
+                        USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
+                        reg,
+                        0x00,
+                        gspca_dev->usb_buf,
+                        length,
+                        500);
+        if (unlikely(result < 0 || result != length)) {
+                err("Read register failed 0x%02X", reg);
+                return -EIO;
+        }
+        return 0;
+}
+
+int reg_w(struct gspca_dev *gspca_dev, u16 reg, const u8 *buffer, int length)
+{
+        struct usb_device *dev = gspca_dev->dev;
+        int result;
+        memcpy(gspca_dev->usb_buf, buffer, length);
+        result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+                        0x08,
+                        USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
+                        reg,
+                        0x00,
+                        gspca_dev->usb_buf,
+                        length,
+                        500);
+        if (unlikely(result < 0 || result != length)) {
+                err("Write register failed index 0x%02X", reg);
+                return -EIO;
+        }
+        return 0;
+}
+
+int reg_w1(struct gspca_dev *gspca_dev, u16 reg, const u8 value)
+{
+        u8 data[1] = {value};
+        return reg_w(gspca_dev, reg, data, 1);
+}
+
+int i2c_w(struct gspca_dev *gspca_dev, const u8 *buffer)
+{
+        int i;
+        reg_w(gspca_dev, 0x10c0, buffer, 8);
+        for (i = 0; i < 5; i++) {
+                reg_r(gspca_dev, 0x10c0, 1);
+                if (gspca_dev->usb_buf[0] & 0x04) {
+                        if (gspca_dev->usb_buf[0] & 0x08)
+                                return -1;
+                        return 0;
+                }
+                msleep(1);
+        }
+        return -1;
+}
+
+int i2c_w1(struct gspca_dev *gspca_dev, u8 reg, u8 val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+
+        u8 row[8];
+
+        /*
+         * from the point of view of the bridge, the length
+         * includes the address
+         */
+        row[0] = 0x81 | (2 << 4);
+        row[1] = sd->i2c_addr;
+        row[2] = reg;
+        row[3] = val;
+        row[4] = 0x00;
+        row[5] = 0x00;
+        row[6] = 0x00;
+        row[7] = 0x10;
+
+        return i2c_w(gspca_dev, row);
+}
+
+int i2c_w2(struct gspca_dev *gspca_dev, u8 reg, u16 val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        u8 row[8];
+
+        /*
+         * from the point of view of the bridge, the length
+         * includes the address
+         */
+        row[0] = 0x81 | (3 << 4);
+        row[1] = sd->i2c_addr;
+        row[2] = reg;
+        row[3] = (val >> 8) & 0xff;
+        row[4] = val & 0xff;
+        row[5] = 0x00;
+        row[6] = 0x00;
+        row[7] = 0x10;
+
+        return i2c_w(gspca_dev, row);
+}
+
+int i2c_r1(struct gspca_dev *gspca_dev, u8 reg, u8 *val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        u8 row[8];
+
+        row[0] = 0x81 | 0x10;
+        row[1] = sd->i2c_addr;
+        row[2] = reg;
+        row[3] = 0;
+        row[4] = 0;
+        row[5] = 0;
+        row[6] = 0;
+        row[7] = 0x10;
+        reg_w(gspca_dev, 0x10c0, row, 8);
+        msleep(1);
+        row[0] = 0x81 | (2 << 4) | 0x02;
+        row[2] = 0;
+        reg_w(gspca_dev, 0x10c0, row, 8);
+        msleep(1);
+        reg_r(gspca_dev, 0x10c2, 5);
+        *val = gspca_dev->usb_buf[3];
+        return 0;
+}
+
+int i2c_r2(struct gspca_dev *gspca_dev, u8 reg, u16 *val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        u8 row[8];
+
+        row[0] = 0x81 | 0x10;
+        row[1] = sd->i2c_addr;
+        row[2] = reg;
+        row[3] = 0;
+        row[4] = 0;
+        row[5] = 0;
+        row[6] = 0;
+        row[7] = 0x10;
+        reg_w(gspca_dev, 0x10c0, row, 8);
+        msleep(1);
+        row[0] = 0x81 | (3 << 4) | 0x02;
+        row[2] = 0;
+        reg_w(gspca_dev, 0x10c0, row, 8);
+        msleep(1);
+        reg_r(gspca_dev, 0x10c2, 5);
+        *val = (gspca_dev->usb_buf[2] << 8) | gspca_dev->usb_buf[3];
+        return 0;
+}
+
+static int ov9650_init_sensor(struct gspca_dev *gspca_dev)
+{
+        int i;
+        struct sd *sd = (struct sd *) gspca_dev;
+
+        for (i = 0; i < ARRAY_SIZE(ov9650_init); i++) {
+                if (i2c_w1(gspca_dev, ov9650_init[i][0],
+                                ov9650_init[i][1]) < 0) {
+                        err("OV9650 sensor initialization failed");
+                        return -ENODEV;
+                }
+        }
+        sd->hstart = 1;
+        sd->vstart = 7;
+        return 0;
+}
+
+static int ov9655_init_sensor(struct gspca_dev *gspca_dev)
+{
+        int i;
+        struct sd *sd = (struct sd *) gspca_dev;
+
+        for (i = 0; i < ARRAY_SIZE(ov9655_init); i++) {
+                if (i2c_w1(gspca_dev, ov9655_init[i][0],
+                                ov9655_init[i][1]) < 0) {
+                        err("OV9655 sensor initialization failed");
+                        return -ENODEV;
+                }
+        }
+        /* disable hflip and vflip */
+        gspca_dev->ctrl_dis = (1 << HFLIP_IDX) | (1 << VFLIP_IDX);
+        sd->hstart = 0;
+        sd->vstart = 7;
+        return 0;
+}
+
+static int soi968_init_sensor(struct gspca_dev *gspca_dev)
+{
+        int i;
+        struct sd *sd = (struct sd *) gspca_dev;
+
+        for (i = 0; i < ARRAY_SIZE(soi968_init); i++) {
+                if (i2c_w1(gspca_dev, soi968_init[i][0],
+                                soi968_init[i][1]) < 0) {
+                        err("SOI968 sensor initialization failed");
+                        return -ENODEV;
+                }
+        }
+        /* disable hflip and vflip */
+        gspca_dev->ctrl_dis = (1 << HFLIP_IDX) | (1 << VFLIP_IDX);
+        sd->hstart = 60;
+        sd->vstart = 11;
+        return 0;
+}
+
+static int ov7660_init_sensor(struct gspca_dev *gspca_dev)
+{
+        int i;
+        struct sd *sd = (struct sd *) gspca_dev;
+
+        for (i = 0; i < ARRAY_SIZE(ov7660_init); i++) {
+                if (i2c_w1(gspca_dev, ov7660_init[i][0],
+                                ov7660_init[i][1]) < 0) {
+                        err("OV7660 sensor initialization failed");
+                        return -ENODEV;
+                }
+        }
+        /* disable hflip and vflip */
+        gspca_dev->ctrl_dis = (1 << HFLIP_IDX) | (1 << VFLIP_IDX);
+        sd->hstart = 1;
+        sd->vstart = 1;
+        return 0;
+}
+
+static int ov7670_init_sensor(struct gspca_dev *gspca_dev)
+{
+        int i;
+        struct sd *sd = (struct sd *) gspca_dev;
+
+        for (i = 0; i < ARRAY_SIZE(ov7670_init); i++) {
+                if (i2c_w1(gspca_dev, ov7670_init[i][0],
+                                ov7670_init[i][1]) < 0) {
+                        err("OV7670 sensor initialization failed");
+                        return -ENODEV;
+                }
+        }
+        /* disable hflip and vflip */
+        gspca_dev->ctrl_dis = (1 << HFLIP_IDX) | (1 << VFLIP_IDX);
+        sd->hstart = 0;
+        sd->vstart = 1;
+        return 0;
+}
+
+static int mt9v_init_sensor(struct gspca_dev *gspca_dev)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        int i;
+        u16 value;
+        int ret;
+
+        sd->i2c_addr = 0x5d;
+        ret = i2c_r2(gspca_dev, 0xff, &value);
+        if ((ret == 0) && (value == 0x8243)) {
+                for (i = 0; i < ARRAY_SIZE(mt9v011_init); i++) {
+                        if (i2c_w2(gspca_dev, mt9v011_init[i][0],
+                                        mt9v011_init[i][1]) < 0) {
+                                err("MT9V011 sensor initialization failed");
+                                return -ENODEV;
+                        }
+                }
+                sd->hstart = 2;
+                sd->vstart = 2;
+                sd->sensor = SENSOR_MT9V011;
+                info("MT9V011 sensor detected");
+                return 0;
+        }
+
+        sd->i2c_addr = 0x5c;
+        i2c_w2(gspca_dev, 0x01, 0x0004);
+        ret = i2c_r2(gspca_dev, 0xff, &value);
+        if ((ret == 0) && (value == 0x823a)) {
+                for (i = 0; i < ARRAY_SIZE(mt9v111_init); i++) {
+                        if (i2c_w2(gspca_dev, mt9v111_init[i][0],
+                                        mt9v111_init[i][1]) < 0) {
+                                err("MT9V111 sensor initialization failed");
+                                return -ENODEV;
+                        }
+                }
+                sd->hstart = 2;
+                sd->vstart = 2;
+                sd->sensor = SENSOR_MT9V111;
+                info("MT9V111 sensor detected");
+                return 0;
+        }
+
+        sd->i2c_addr = 0x5d;
+        ret = i2c_w2(gspca_dev, 0xf0, 0x0000);
+        if (ret < 0) {
+                sd->i2c_addr = 0x48;
+                i2c_w2(gspca_dev, 0xf0, 0x0000);
+        }
+        ret = i2c_r2(gspca_dev, 0x00, &value);
+        if ((ret == 0) && (value == 0x1229)) {
+                for (i = 0; i < ARRAY_SIZE(mt9v112_init); i++) {
+                        if (i2c_w2(gspca_dev, mt9v112_init[i][0],
+                                        mt9v112_init[i][1]) < 0) {
+                                err("MT9V112 sensor initialization failed");
+                                return -ENODEV;
+                        }
+                }
+                sd->hstart = 6;
+                sd->vstart = 2;
+                sd->sensor = SENSOR_MT9V112;
+                info("MT9V112 sensor detected");
+                return 0;
+        }
+
+        return -ENODEV;
+}
+
+static int mt9m111_init_sensor(struct gspca_dev *gspca_dev)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        int i;
+        for (i = 0; i < ARRAY_SIZE(mt9m111_init); i++) {
+                if (i2c_w2(gspca_dev, mt9m111_init[i][0],
+                                mt9m111_init[i][1]) < 0) {
+                        err("MT9M111 sensor initialization failed");
+                        return -ENODEV;
+                }
+        }
+        sd->hstart = 0;
+        sd->vstart = 2;
+        return 0;
+}
+
+static int mt9m001_init_sensor(struct gspca_dev *gspca_dev)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        int i;
+        for (i = 0; i < ARRAY_SIZE(mt9m001_init); i++) {
+                if (i2c_w2(gspca_dev, mt9m001_init[i][0],
+                                mt9m001_init[i][1]) < 0) {
+                        err("MT9M001 sensor initialization failed");
+                        return -ENODEV;
+                }
+        }
+        /* disable hflip and vflip */
+        gspca_dev->ctrl_dis = (1 << HFLIP_IDX) | (1 << VFLIP_IDX);
+        sd->hstart = 2;
+        sd->vstart = 2;
+        return 0;
+}
+
+static int hv7131r_init_sensor(struct gspca_dev *gspca_dev)
+{
+        int i;
+        struct sd *sd = (struct sd *) gspca_dev;
+
+        for (i = 0; i < ARRAY_SIZE(hv7131r_init); i++) {
+                if (i2c_w1(gspca_dev, hv7131r_init[i][0],
+                                hv7131r_init[i][1]) < 0) {
+                        err("HV7131R Sensor initialization failed");
+                        return -ENODEV;
+                }
+        }
+        sd->hstart = 0;
+        sd->vstart = 1;
+        return 0;
+}
+
+#ifdef CONFIG_USB_GSPCA_SN9C20X_EVDEV
+static int input_kthread(void *data)
+{
+        struct gspca_dev *gspca_dev = (struct gspca_dev *)data;
+        struct sd *sd = (struct sd *) gspca_dev;
+
+        DECLARE_WAIT_QUEUE_HEAD(wait);
+        set_freezable();
+        for (;;) {
+                if (kthread_should_stop())
+                        break;
+
+                if (reg_r(gspca_dev, 0x1005, 1) < 0)
+                        continue;
+
+                input_report_key(sd->input_dev,
+                                 KEY_CAMERA,
+                                 gspca_dev->usb_buf[0] & sd->input_gpio);
+                input_sync(sd->input_dev);
+
+                wait_event_freezable_timeout(wait,
+                                             kthread_should_stop(),
+                                             msecs_to_jiffies(100));
+        }
+        return 0;
+}
+
+
+static int sn9c20x_input_init(struct gspca_dev *gspca_dev)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        if (sd->input_gpio == 0)
+                return 0;
+
+        sd->input_dev = input_allocate_device();
+        if (!sd->input_dev)
+                return -ENOMEM;
+
+        sd->input_dev->name = "SN9C20X Webcam";
+
+        sd->input_dev->phys = kasprintf(GFP_KERNEL, "usb-%s-%s",
+                                         gspca_dev->dev->bus->bus_name,
+                                         gspca_dev->dev->devpath);
+
+        if (!sd->input_dev->phys)
+                return -ENOMEM;
+
+        usb_to_input_id(gspca_dev->dev, &sd->input_dev->id);
+        sd->input_dev->dev.parent = &gspca_dev->dev->dev;
+
+        set_bit(EV_KEY, sd->input_dev->evbit);
+        set_bit(KEY_CAMERA, sd->input_dev->keybit);
+
+        if (input_register_device(sd->input_dev))
+                return -EINVAL;
+
+        sd->input_task = kthread_run(input_kthread, gspca_dev, "sn9c20x/%d",
+                                     gspca_dev->vdev.minor);
+
+        if (IS_ERR(sd->input_task))
+                return -EINVAL;
+
+        return 0;
+}
+
+static void sn9c20x_input_cleanup(struct gspca_dev *gspca_dev)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        if (sd->input_task != NULL && !IS_ERR(sd->input_task))
+                kthread_stop(sd->input_task);
+
+        if (sd->input_dev != NULL) {
+                input_unregister_device(sd->input_dev);
+                kfree(sd->input_dev->phys);
+                input_free_device(sd->input_dev);
+                sd->input_dev = NULL;
+        }
+}
+#endif
+
+static int set_cmatrix(struct gspca_dev *gspca_dev)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        s32 hue_coord, hue_index = 180 + sd->hue;
+        u8 cmatrix[21];
+        memset(cmatrix, 0, 21);
+
+        cmatrix[2] = (sd->contrast * 0x25 / 0x100) + 0x26;
+        cmatrix[0] = 0x13 + (cmatrix[2] - 0x26) * 0x13 / 0x25;
+        cmatrix[4] = 0x07 + (cmatrix[2] - 0x26) * 0x07 / 0x25;
+        cmatrix[18] = sd->brightness - 0x80;
+
+        hue_coord = (hsv_red_x[hue_index] * sd->saturation) >> 8;
+        cmatrix[6] = (unsigned char)(hue_coord & 0xff);
+        cmatrix[7] = (unsigned char)((hue_coord >> 8) & 0x0f);
+
+        hue_coord = (hsv_red_y[hue_index] * sd->saturation) >> 8;
+        cmatrix[8] = (unsigned char)(hue_coord & 0xff);
+        cmatrix[9] = (unsigned char)((hue_coord >> 8) & 0x0f);
+
+        hue_coord = (hsv_green_x[hue_index] * sd->saturation) >> 8;
+        cmatrix[10] = (unsigned char)(hue_coord & 0xff);
+        cmatrix[11] = (unsigned char)((hue_coord >> 8) & 0x0f);
+
+        hue_coord = (hsv_green_y[hue_index] * sd->saturation) >> 8;
+        cmatrix[12] = (unsigned char)(hue_coord & 0xff);
+        cmatrix[13] = (unsigned char)((hue_coord >> 8) & 0x0f);
+
+        hue_coord = (hsv_blue_x[hue_index] * sd->saturation) >> 8;
+        cmatrix[14] = (unsigned char)(hue_coord & 0xff);
+        cmatrix[15] = (unsigned char)((hue_coord >> 8) & 0x0f);
+
+        hue_coord = (hsv_blue_y[hue_index] * sd->saturation) >> 8;
+        cmatrix[16] = (unsigned char)(hue_coord & 0xff);
+        cmatrix[17] = (unsigned char)((hue_coord >> 8) & 0x0f);
+
+        return reg_w(gspca_dev, 0x10e1, cmatrix, 21);
+}
+
+static int set_gamma(struct gspca_dev *gspca_dev)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        u8 gamma[17];
+        u8 gval = sd->gamma * 0xb8 / 0x100;
+
+
+        gamma[0] = 0x0a;
+        gamma[1] = 0x13 + (gval * (0xcb - 0x13) / 0xb8);
+        gamma[2] = 0x25 + (gval * (0xee - 0x25) / 0xb8);
+        gamma[3] = 0x37 + (gval * (0xfa - 0x37) / 0xb8);
+        gamma[4] = 0x45 + (gval * (0xfc - 0x45) / 0xb8);
+        gamma[5] = 0x55 + (gval * (0xfb - 0x55) / 0xb8);
+        gamma[6] = 0x65 + (gval * (0xfc - 0x65) / 0xb8);
+        gamma[7] = 0x74 + (gval * (0xfd - 0x74) / 0xb8);
+        gamma[8] = 0x83 + (gval * (0xfe - 0x83) / 0xb8);
+        gamma[9] = 0x92 + (gval * (0xfc - 0x92) / 0xb8);
+        gamma[10] = 0xa1 + (gval * (0xfc - 0xa1) / 0xb8);
+        gamma[11] = 0xb0 + (gval * (0xfc - 0xb0) / 0xb8);
+        gamma[12] = 0xbf + (gval * (0xfb - 0xbf) / 0xb8);
+        gamma[13] = 0xce + (gval * (0xfb - 0xce) / 0xb8);
+        gamma[14] = 0xdf + (gval * (0xfd - 0xdf) / 0xb8);
+        gamma[15] = 0xea + (gval * (0xf9 - 0xea) / 0xb8);
+        gamma[16] = 0xf5;
+
+        return reg_w(gspca_dev, 0x1190, gamma, 17);
+}
+
+static int set_redblue(struct gspca_dev *gspca_dev)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        reg_w1(gspca_dev, 0x118c, sd->red);
+        reg_w1(gspca_dev, 0x118f, sd->blue);
+        return 0;
+}
+
+static int set_hvflip(struct gspca_dev *gspca_dev)
+{
+        u8 value, tslb;
+        u16 value2;
+        struct sd *sd = (struct sd *) gspca_dev;
+        switch (sd->sensor) {
+        case SENSOR_OV9650:
+                i2c_r1(gspca_dev, 0x1e, &value);
+                value &= ~0x30;
+                tslb = 0x01;
+                if (sd->hflip)
+                        value |= 0x20;
+                if (sd->vflip) {
+                        value |= 0x10;
+                        tslb = 0x49;
+                }
+                i2c_w1(gspca_dev, 0x1e, value);
+                i2c_w1(gspca_dev, 0x3a, tslb);
+                break;
+        case SENSOR_MT9V111:
+        case SENSOR_MT9V011:
+                i2c_r2(gspca_dev, 0x20, &value2);
+                value2 &= ~0xc0a0;
+                if (sd->hflip)
+                        value2 |= 0x8080;
+                if (sd->vflip)
+                        value2 |= 0x4020;
+                i2c_w2(gspca_dev, 0x20, value2);
+                break;
+        case SENSOR_MT9M111:
+        case SENSOR_MT9V112:
+                i2c_r2(gspca_dev, 0x20, &value2);
+                value2 &= ~0x0003;
+                if (sd->hflip)
+                        value2 |= 0x0002;
+                if (sd->vflip)
+                        value2 |= 0x0001;
+                i2c_w2(gspca_dev, 0x20, value2);
+                break;
+        case SENSOR_HV7131R:
+                i2c_r1(gspca_dev, 0x01, &value);
+                value &= ~0x03;
+                if (sd->vflip)
+                        value |= 0x01;
+                if (sd->hflip)
+                        value |= 0x02;
+                i2c_w1(gspca_dev, 0x01, value);
+                break;
+        }
+        return 0;
+}
+
+static int set_exposure(struct gspca_dev *gspca_dev)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        u8 exp[8] = {0x81, sd->i2c_addr, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e};
+        switch (sd->sensor) {
+        case SENSOR_OV7660:
+        case SENSOR_OV7670:
+        case SENSOR_SOI968:
+        case SENSOR_OV9655:
+        case SENSOR_OV9650:
+                exp[0] |= (3 << 4);
+                exp[2] = 0x2d;
+                exp[3] = sd->exposure & 0xff;
+                exp[4] = sd->exposure >> 8;
+                break;
+        case SENSOR_MT9M001:
+        case SENSOR_MT9M111:
+        case SENSOR_MT9V112:
+        case SENSOR_MT9V111:
+        case SENSOR_MT9V011:
+                exp[0] |= (3 << 4);
+                exp[2] = 0x09;
+                exp[3] = sd->exposure >> 8;
+                exp[4] = sd->exposure & 0xff;
+                break;
+        case SENSOR_HV7131R:
+                exp[0] |= (4 << 4);
+                exp[2] = 0x25;
+                exp[3] = ((sd->exposure * 0xffffff) / 0xffff) >> 16;
+                exp[4] = ((sd->exposure * 0xffffff) / 0xffff) >> 8;
+                exp[5] = ((sd->exposure * 0xffffff) / 0xffff) & 0xff;
+                break;
+        }
+        i2c_w(gspca_dev, exp);
+        return 0;
+}
+
+static int set_gain(struct gspca_dev *gspca_dev)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        u8 gain[8] = {0x81, sd->i2c_addr, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1d};
+        switch (sd->sensor) {
+        case SENSOR_OV7660:
+        case SENSOR_OV7670:
+        case SENSOR_SOI968:
+        case SENSOR_OV9655:
+        case SENSOR_OV9650:
+                gain[0] |= (2 << 4);
+                gain[3] = ov_gain[sd->gain];
+                break;
+        case SENSOR_MT9V011:
+        case SENSOR_MT9V111:
+                gain[0] |= (3 << 4);
+                gain[2] = 0x35;
+                gain[3] = micron1_gain[sd->gain] >> 8;
+                gain[4] = micron1_gain[sd->gain] & 0xff;
+                break;
+        case SENSOR_MT9V112:
+        case SENSOR_MT9M111:
+                gain[0] |= (3 << 4);
+                gain[2] = 0x2f;
+                gain[3] = micron1_gain[sd->gain] >> 8;
+                gain[4] = micron1_gain[sd->gain] & 0xff;
+                break;
+        case SENSOR_MT9M001:
+                gain[0] |= (3 << 4);
+                gain[2] = 0x2f;
+                gain[3] = micron2_gain[sd->gain] >> 8;
+                gain[4] = micron2_gain[sd->gain] & 0xff;
+                break;
+        case SENSOR_HV7131R:
+                gain[0] |= (2 << 4);
+                gain[2] = 0x30;
+                gain[3] = hv7131r_gain[sd->gain];
+                break;
+        }
+        i2c_w(gspca_dev, gain);
+        return 0;
+}
+
+static int sd_setbrightness(struct gspca_dev *gspca_dev, s32 val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+
+        sd->brightness = val;
+        if (gspca_dev->streaming)
+                return set_cmatrix(gspca_dev);
+        return 0;
+}
+
+static int sd_getbrightness(struct gspca_dev *gspca_dev, s32 *val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        *val = sd->brightness;
+        return 0;
+}
+
+
+static int sd_setcontrast(struct gspca_dev *gspca_dev, s32 val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+
+        sd->contrast = val;
+        if (gspca_dev->streaming)
+                return set_cmatrix(gspca_dev);
+        return 0;
+}
+
+static int sd_getcontrast(struct gspca_dev *gspca_dev, s32 *val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        *val = sd->contrast;
+        return 0;
+}
+
+static int sd_setsaturation(struct gspca_dev *gspca_dev, s32 val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+
+        sd->saturation = val;
+        if (gspca_dev->streaming)
+                return set_cmatrix(gspca_dev);
+        return 0;
+}
+
+static int sd_getsaturation(struct gspca_dev *gspca_dev, s32 *val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        *val = sd->saturation;
+        return 0;
+}
+
+static int sd_sethue(struct gspca_dev *gspca_dev, s32 val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+
+        sd->hue = val;
+        if (gspca_dev->streaming)
+                return set_cmatrix(gspca_dev);
+        return 0;
+}
+
+static int sd_gethue(struct gspca_dev *gspca_dev, s32 *val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        *val = sd->hue;
+        return 0;
+}
+
+static int sd_setgamma(struct gspca_dev *gspca_dev, s32 val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+
+        sd->gamma = val;
+        if (gspca_dev->streaming)
+                return set_gamma(gspca_dev);
+        return 0;
+}
+
+static int sd_getgamma(struct gspca_dev *gspca_dev, s32 *val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        *val = sd->gamma;
+        return 0;
+}
+
+static int sd_setredbalance(struct gspca_dev *gspca_dev, s32 val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+
+        sd->red = val;
+        if (gspca_dev->streaming)
+                return set_redblue(gspca_dev);
+        return 0;
+}
+
+static int sd_getredbalance(struct gspca_dev *gspca_dev, s32 *val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        *val = sd->red;
+        return 0;
+}
+
+static int sd_setbluebalance(struct gspca_dev *gspca_dev, s32 val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+
+        sd->blue = val;
+        if (gspca_dev->streaming)
+                return set_redblue(gspca_dev);
+        return 0;
+}
+
+static int sd_getbluebalance(struct gspca_dev *gspca_dev, s32 *val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        *val = sd->blue;
+        return 0;
+}
+
+static int sd_sethflip(struct gspca_dev *gspca_dev, s32 val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+
+        sd->hflip = val;
+        if (gspca_dev->streaming)
+                return set_hvflip(gspca_dev);
+        return 0;
+}
+
+static int sd_gethflip(struct gspca_dev *gspca_dev, s32 *val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        *val = sd->hflip;
+        return 0;
+}
+
+static int sd_setvflip(struct gspca_dev *gspca_dev, s32 val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+
+        sd->vflip = val;
+        if (gspca_dev->streaming)
+                return set_hvflip(gspca_dev);
+        return 0;
+}
+
+static int sd_getvflip(struct gspca_dev *gspca_dev, s32 *val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        *val = sd->vflip;
+        return 0;
+}
+
+static int sd_setexposure(struct gspca_dev *gspca_dev, s32 val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+
+        sd->exposure = val;
+        if (gspca_dev->streaming)
+                return set_exposure(gspca_dev);
+        return 0;
+}
+
+static int sd_getexposure(struct gspca_dev *gspca_dev, s32 *val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        *val = sd->exposure;
+        return 0;
+}
+
+static int sd_setgain(struct gspca_dev *gspca_dev, s32 val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+
+        sd->gain = val;
+        if (gspca_dev->streaming)
+                return set_gain(gspca_dev);
+        return 0;
+}
+
+static int sd_getgain(struct gspca_dev *gspca_dev, s32 *val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        *val = sd->gain;
+        return 0;
+}
+
+static int sd_setautoexposure(struct gspca_dev *gspca_dev, s32 val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        sd->auto_exposure = val;
+        return 0;
+}
+
+static int sd_getautoexposure(struct gspca_dev *gspca_dev, s32 *val)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        *val = sd->auto_exposure;
+        return 0;
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int sd_dbg_g_register(struct gspca_dev *gspca_dev,
+                        struct v4l2_dbg_register *reg)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        switch (reg->match.type) {
+        case V4L2_CHIP_MATCH_HOST:
+                if (reg->match.addr != 0)
+                        return -EINVAL;
+                if (reg->reg < 0x1000 || reg->reg > 0x11ff)
+                        return -EINVAL;
+                if (reg_r(gspca_dev, reg->reg, 1) < 0)
+                        return -EINVAL;
+                reg->val = gspca_dev->usb_buf[0];
+                return 0;
+        case V4L2_CHIP_MATCH_I2C_ADDR:
+                if (reg->match.addr != sd->i2c_addr)
+                        return -EINVAL;
+                if (sd->sensor >= SENSOR_MT9V011 &&
+                    sd->sensor <= SENSOR_MT9M111) {
+                        if (i2c_r2(gspca_dev, reg->reg, (u16 *)&reg->val) < 0)
+                                return -EINVAL;
+                } else {
+                        if (i2c_r1(gspca_dev, reg->reg, (u8 *)&reg->val) < 0)
+                                return -EINVAL;
+                }
+                return 0;
+        }
+        return -EINVAL;
+}
+
+static int sd_dbg_s_register(struct gspca_dev *gspca_dev,
+                        struct v4l2_dbg_register *reg)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        switch (reg->match.type) {
+        case V4L2_CHIP_MATCH_HOST:
+                if (reg->match.addr != 0)
+                        return -EINVAL;
+                if (reg->reg < 0x1000 || reg->reg > 0x11ff)
+                        return -EINVAL;
+                if (reg_w1(gspca_dev, reg->reg, reg->val) < 0)
+                        return -EINVAL;
+                return 0;
+        case V4L2_CHIP_MATCH_I2C_ADDR:
+                if (reg->match.addr != sd->i2c_addr)
+                        return -EINVAL;
+                if (sd->sensor >= SENSOR_MT9V011 &&
+                    sd->sensor <= SENSOR_MT9M111) {
+                        if (i2c_w2(gspca_dev, reg->reg, reg->val) < 0)
+                                return -EINVAL;
+                } else {
+                        if (i2c_w1(gspca_dev, reg->reg, reg->val) < 0)
+                                return -EINVAL;
+                }
+                return 0;
+        }
+        return -EINVAL;
+}
+#endif
+
+static int sd_chip_ident(struct gspca_dev *gspca_dev,
+                        struct v4l2_dbg_chip_ident *chip)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+
+        switch (chip->match.type) {
+        case V4L2_CHIP_MATCH_HOST:
+                if (chip->match.addr != 0)
+                        return -EINVAL;
+                chip->revision = 0;
+                chip->ident = V4L2_IDENT_SN9C20X;
+                return 0;
+        case V4L2_CHIP_MATCH_I2C_ADDR:
+                if (chip->match.addr != sd->i2c_addr)
+                        return -EINVAL;
+                chip->revision = 0;
+                chip->ident = i2c_ident[sd->sensor];
+                return 0;
+        }
+        return -EINVAL;
+}
+
+static int sd_config(struct gspca_dev *gspca_dev,
+                        const struct usb_device_id *id)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        struct cam *cam;
+
+        cam = &gspca_dev->cam;
+
+        sd->sensor = (id->driver_info >> 8) & 0xff;
+        sd->i2c_addr = id->driver_info & 0xff;
+
+        switch (sd->sensor) {
+        case SENSOR_OV9650:
+                cam->cam_mode = sxga_mode;
+                cam->nmodes = ARRAY_SIZE(sxga_mode);
+                break;
+        default:
+                cam->cam_mode = vga_mode;
+                cam->nmodes = ARRAY_SIZE(vga_mode);
+        }
+
+        sd->old_step = 0;
+        sd->older_step = 0;
+        sd->exposure_step = 16;
+
+        sd->brightness = BRIGHTNESS_DEFAULT;
+        sd->contrast = CONTRAST_DEFAULT;
+        sd->saturation = SATURATION_DEFAULT;
+        sd->hue = HUE_DEFAULT;
+        sd->gamma = GAMMA_DEFAULT;
+        sd->red = RED_DEFAULT;
+        sd->blue = BLUE_DEFAULT;
+
+        sd->hflip = HFLIP_DEFAULT;
+        sd->vflip = VFLIP_DEFAULT;
+        sd->exposure = EXPOSURE_DEFAULT;
+        sd->gain = GAIN_DEFAULT;
+        sd->auto_exposure = AUTO_EXPOSURE_DEFAULT;
+
+        sd->quality = 95;
+
+#ifdef CONFIG_USB_GSPCA_SN9C20X_EVDEV
+        sd->input_gpio = (id->driver_info >> 16) & 0xff;
+        if (sn9c20x_input_init(gspca_dev) < 0)
+                return -ENODEV;
+#endif
+        return 0;
+}
+
+static int sd_init(struct gspca_dev *gspca_dev)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        int i;
+        u8 value;
+        u8 i2c_init[9] =
+                {0x80, sd->i2c_addr, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03};
+
+        for (i = 0; i < ARRAY_SIZE(bridge_init); i++) {
+                value = bridge_init[i][1];
+                if (reg_w(gspca_dev, bridge_init[i][0], &value, 1) < 0) {
+                        err("Device initialization failed");
+                        return -ENODEV;
+                }
+        }
+
+        if (reg_w(gspca_dev, 0x10c0, i2c_init, 9) < 0) {
+                err("Device initialization failed");
+                return -ENODEV;
+        }
+
+        switch (sd->sensor) {
+        case SENSOR_OV9650:
+                if (ov9650_init_sensor(gspca_dev) < 0)
+                        return -ENODEV;
+                info("OV9650 sensor detected");
+                break;
+        case SENSOR_OV9655:
+                if (ov9655_init_sensor(gspca_dev) < 0)
+                        return -ENODEV;
+                info("OV9655 sensor detected");
+                break;
+        case SENSOR_SOI968:
+                if (soi968_init_sensor(gspca_dev) < 0)
+                        return -ENODEV;
+                info("SOI968 sensor detected");
+                break;
+        case SENSOR_OV7660:
+                if (ov7660_init_sensor(gspca_dev) < 0)
+                        return -ENODEV;
+                info("OV7660 sensor detected");
+                break;
+        case SENSOR_OV7670:
+                if (ov7670_init_sensor(gspca_dev) < 0)
+                        return -ENODEV;
+                info("OV7670 sensor detected");
+                break;
+        case SENSOR_MT9VPRB:
+                if (mt9v_init_sensor(gspca_dev) < 0)
+                        return -ENODEV;
+                break;
+        case SENSOR_MT9M111:
+                if (mt9m111_init_sensor(gspca_dev) < 0)
+                        return -ENODEV;
+                info("MT9M111 sensor detected");
+                break;
+        case SENSOR_MT9M001:
+                if (mt9m001_init_sensor(gspca_dev) < 0)
+                        return -ENODEV;
+                info("MT9M001 sensor detected");
+                break;
+        case SENSOR_HV7131R:
+                if (hv7131r_init_sensor(gspca_dev) < 0)
+                        return -ENODEV;
+                info("HV7131R sensor detected");
+                break;
+        default:
+                info("Unsupported Sensor");
+                return -ENODEV;
+        }
+
+        return 0;
+}
+
+static void configure_sensor_output(struct gspca_dev *gspca_dev, int mode)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        u8 value;
+        switch (sd->sensor) {
+        case SENSOR_OV9650:
+                if (mode & MODE_SXGA) {
+                        i2c_w1(gspca_dev, 0x17, 0x1b);
+                        i2c_w1(gspca_dev, 0x18, 0xbc);
+                        i2c_w1(gspca_dev, 0x19, 0x01);
+                        i2c_w1(gspca_dev, 0x1a, 0x82);
+                        i2c_r1(gspca_dev, 0x12, &value);
+                        i2c_w1(gspca_dev, 0x12, value & 0x07);
+                } else {
+                        i2c_w1(gspca_dev, 0x17, 0x24);
+                        i2c_w1(gspca_dev, 0x18, 0xc5);
+                        i2c_w1(gspca_dev, 0x19, 0x00);
+                        i2c_w1(gspca_dev, 0x1a, 0x3c);
+                        i2c_r1(gspca_dev, 0x12, &value);
+                        i2c_w1(gspca_dev, 0x12, (value & 0x7) | 0x40);
+                }
+                break;
+        }
+}
+
+#define HW_WIN(mode, hstart, vstart) \
+((const u8 []){hstart & 0xff, hstart >> 8, \
+vstart & 0xff, vstart >> 8, \
+(mode & MODE_SXGA ? 1280 >> 4 : 640 >> 4), \
+(mode & MODE_SXGA ? 1024 >> 3 : 480 >> 3)})
+
+#define CLR_WIN(width, height) \
+((const u8 [])\
+{0, width >> 2, 0, height >> 1,\
+((width >> 10) & 0x01) | ((height >> 8) & 0x6)})
+
+static int sd_start(struct gspca_dev *gspca_dev)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        int mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
+        int width = gspca_dev->width;
+        int height = gspca_dev->height;
+        u8 fmt, scale = 0;
+
+        sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
+        if (sd->jpeg_hdr == NULL)
+                return -ENOMEM;
+
+        jpeg_define(sd->jpeg_hdr, height, width,
+                        0x21);
+        jpeg_set_qual(sd->jpeg_hdr, sd->quality);
+
+        if (mode & MODE_RAW)
+                fmt = 0x2d;
+        else if (mode & MODE_JPEG)
+                fmt = 0x2c;
+        else
+                fmt = 0x2f;
+
+        switch (mode & 0x0f) {
+        case 3:
+                scale = 0xc0;
+                info("Set 1280x1024");
+                break;
+        case 2:
+                scale = 0x80;
+                info("Set 640x480");
+                break;
+        case 1:
+                scale = 0x90;
+                info("Set 320x240");
+                break;
+        case 0:
+                scale = 0xa0;
+                info("Set 160x120");
+                break;
+        }
+
+        configure_sensor_output(gspca_dev, mode);
+        reg_w(gspca_dev, 0x1100, sd->jpeg_hdr + JPEG_QT0_OFFSET, 64);
+        reg_w(gspca_dev, 0x1140, sd->jpeg_hdr + JPEG_QT1_OFFSET, 64);
+        reg_w(gspca_dev, 0x10fb, CLR_WIN(width, height), 5);
+        reg_w(gspca_dev, 0x1180, HW_WIN(mode, sd->hstart, sd->vstart), 6);
+        reg_w1(gspca_dev, 0x1189, scale);
+        reg_w1(gspca_dev, 0x10e0, fmt);
+
+        set_cmatrix(gspca_dev);
+        set_gamma(gspca_dev);
+        set_redblue(gspca_dev);
+        set_gain(gspca_dev);
+        set_exposure(gspca_dev);
+        set_hvflip(gspca_dev);
+
+        reg_r(gspca_dev, 0x1061, 1);
+        reg_w1(gspca_dev, 0x1061, gspca_dev->usb_buf[0] | 0x02);
+        return 0;
+}
+
+static void sd_stopN(struct gspca_dev *gspca_dev)
+{
+        reg_r(gspca_dev, 0x1061, 1);
+        reg_w1(gspca_dev, 0x1061, gspca_dev->usb_buf[0] & ~0x02);
+}
+
+static void sd_stop0(struct gspca_dev *gspca_dev)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        kfree(sd->jpeg_hdr);
+}
+
+static void do_autoexposure(struct gspca_dev *gspca_dev)
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        int avg_lum, new_exp;
+
+        if (!sd->auto_exposure)
+                return;
+
+        avg_lum = atomic_read(&sd->avg_lum);
+
+        /*
+         * some hardcoded values are present
+         * like those for maximal/minimal exposure
+         * and exposure steps
+         */
+        if (avg_lum < MIN_AVG_LUM) {
+                if (sd->exposure > 0x1770)
+                        return;
+
+                new_exp = sd->exposure + sd->exposure_step;
+                if (new_exp > 0x1770)
+                        new_exp = 0x1770;
+                if (new_exp < 0x10)
+                        new_exp = 0x10;
+                sd->exposure = new_exp;
+                set_exposure(gspca_dev);
+
+                sd->older_step = sd->old_step;
+                sd->old_step = 1;
+
+                if (sd->old_step ^ sd->older_step)
+                        sd->exposure_step /= 2;
+                else
+                        sd->exposure_step += 2;
+        }
+        if (avg_lum > MAX_AVG_LUM) {
+                if (sd->exposure < 0x10)
+                        return;
+                new_exp = sd->exposure - sd->exposure_step;
+                if (new_exp > 0x1700)
+                        new_exp = 0x1770;
+                if (new_exp < 0x10)
+                        new_exp = 0x10;
+                sd->exposure = new_exp;
+                set_exposure(gspca_dev);
+                sd->older_step = sd->old_step;
+                sd->old_step = 0;
+
+                if (sd->old_step ^ sd->older_step)
+                        sd->exposure_step /= 2;
+                else
+                        sd->exposure_step += 2;
+        }
+}
+
+static void sd_pkt_scan(struct gspca_dev *gspca_dev,
+                        struct gspca_frame *frame,      /* target */
+                        u8 *data,                       /* isoc packet */
+                        int len)                        /* iso packet length */
+{
+        struct sd *sd = (struct sd *) gspca_dev;
+        int avg_lum;
+        static unsigned char frame_header[] =
+                {0xff, 0xff, 0x00, 0xc4, 0xc4, 0x96};
+        if (len == 64 && memcmp(data, frame_header, 6) == 0) {
+                avg_lum = ((data[35] >> 2) & 3) |
+                           (data[20] << 2) |
+                           (data[19] << 10);
+                avg_lum += ((data[35] >> 4) & 3) |
+                            (data[22] << 2) |
+                            (data[21] << 10);
+                avg_lum += ((data[35] >> 6) & 3) |
+                            (data[24] << 2) |
+                            (data[23] << 10);
+                avg_lum += (data[36] & 3) |
+                           (data[26] << 2) |
+                           (data[25] << 10);
+                avg_lum += ((data[36] >> 2) & 3) |
+                            (data[28] << 2) |
+                            (data[27] << 10);
+                avg_lum += ((data[36] >> 4) & 3) |
+                            (data[30] << 2) |
+                            (data[29] << 10);
+                avg_lum += ((data[36] >> 6) & 3) |
+                            (data[32] << 2) |
+                            (data[31] << 10);
+                avg_lum += ((data[44] >> 4) & 3) |
+                            (data[34] << 2) |
+                            (data[33] << 10);
+                avg_lum >>= 9;
+                atomic_set(&sd->avg_lum, avg_lum);
+                gspca_frame_add(gspca_dev, LAST_PACKET,
+                                frame, data, len);
+                return;
+        }
+        if (gspca_dev->last_packet_type == LAST_PACKET) {
+                if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv
+                                & MODE_JPEG) {
+                        gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
+                                sd->jpeg_hdr, JPEG_HDR_SZ);
+                        gspca_frame_add(gspca_dev, INTER_PACKET, frame,
+                                data, len);
+                } else {
+                        gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
+                                data, len);
+                }
+        } else {
+                gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
+        }
+}
+
+/* sub-driver description */
+static const struct sd_desc sd_desc = {
+        .name = MODULE_NAME,
+        .ctrls = sd_ctrls,
+        .nctrls = ARRAY_SIZE(sd_ctrls),
+        .config = sd_config,
+        .init = sd_init,
+        .start = sd_start,
+        .stopN = sd_stopN,
+        .stop0 = sd_stop0,
+        .pkt_scan = sd_pkt_scan,
+        .dq_callback = do_autoexposure,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+        .set_register = sd_dbg_s_register,
+        .get_register = sd_dbg_g_register,
+#endif
+        .get_chip_ident = sd_chip_ident,
+};
+
+#define SN9C20X(sensor, i2c_addr, button_mask) \
+        .driver_info =  (button_mask << 16) \
+                        | (SENSOR_ ## sensor << 8) \
+                        | (i2c_addr)
+
+static const __devinitdata struct usb_device_id device_table[] = {
+        {USB_DEVICE(0x0c45, 0x6240), SN9C20X(MT9M001, 0x5d, 0)},
+        {USB_DEVICE(0x0c45, 0x6242), SN9C20X(MT9M111, 0x5d, 0)},
+        {USB_DEVICE(0x0c45, 0x6248), SN9C20X(OV9655, 0x30, 0)},
+        {USB_DEVICE(0x0c45, 0x624e), SN9C20X(SOI968, 0x30, 0x10)},
+        {USB_DEVICE(0x0c45, 0x624f), SN9C20X(OV9650, 0x30, 0)},
+        {USB_DEVICE(0x0c45, 0x6251), SN9C20X(OV9650, 0x30, 0)},
+        {USB_DEVICE(0x0c45, 0x6253), SN9C20X(OV9650, 0x30, 0)},
+        {USB_DEVICE(0x0c45, 0x6260), SN9C20X(OV7670, 0x21, 0)},
+        {USB_DEVICE(0x0c45, 0x6270), SN9C20X(MT9VPRB, 0x00, 0)},
+        {USB_DEVICE(0x0c45, 0x627b), SN9C20X(OV7660, 0x21, 0)},
+        {USB_DEVICE(0x0c45, 0x627c), SN9C20X(HV7131R, 0x11, 0)},
+        {USB_DEVICE(0x0c45, 0x627f), SN9C20X(OV9650, 0x30, 0)},
+        {USB_DEVICE(0x0c45, 0x6280), SN9C20X(MT9M001, 0x5d, 0)},
+        {USB_DEVICE(0x0c45, 0x6282), SN9C20X(MT9M111, 0x5d, 0)},
+        {USB_DEVICE(0x0c45, 0x6288), SN9C20X(OV9655, 0x30, 0)},
+        {USB_DEVICE(0x0c45, 0x628e), SN9C20X(SOI968, 0x30, 0)},
+        {USB_DEVICE(0x0c45, 0x628f), SN9C20X(OV9650, 0x30, 0)},
+        {USB_DEVICE(0x0c45, 0x62a0), SN9C20X(OV7670, 0x21, 0)},
+        {USB_DEVICE(0x0c45, 0x62b0), SN9C20X(MT9VPRB, 0x00, 0)},
+        {USB_DEVICE(0x0c45, 0x62b3), SN9C20X(OV9655, 0x30, 0)},
+        {USB_DEVICE(0x0c45, 0x62bb), SN9C20X(OV7660, 0x21, 0)},
+        {USB_DEVICE(0x0c45, 0x62bc), SN9C20X(HV7131R, 0x11, 0)},
+        {USB_DEVICE(0x045e, 0x00f4), SN9C20X(OV9650, 0x30, 0)},
+        {USB_DEVICE(0x145f, 0x013d), SN9C20X(OV7660, 0x21, 0)},
+        {USB_DEVICE(0x0458, 0x7029), SN9C20X(HV7131R, 0x11, 0)},
+        {USB_DEVICE(0xa168, 0x0610), SN9C20X(HV7131R, 0x11, 0)},
+        {USB_DEVICE(0xa168, 0x0611), SN9C20X(HV7131R, 0x11, 0)},
+        {USB_DEVICE(0xa168, 0x0613), SN9C20X(HV7131R, 0x11, 0)},
+        {USB_DEVICE(0xa168, 0x0618), SN9C20X(HV7131R, 0x11, 0)},
+        {USB_DEVICE(0xa168, 0x0614), SN9C20X(MT9M111, 0x5d, 0)},
+        {USB_DEVICE(0xa168, 0x0615), SN9C20X(MT9M111, 0x5d, 0)},
+        {USB_DEVICE(0xa168, 0x0617), SN9C20X(MT9M111, 0x5d, 0)},
+        {}
+};
+MODULE_DEVICE_TABLE(usb, device_table);
+
+/* -- device connect -- */
+static int sd_probe(struct usb_interface *intf,
+                    const struct usb_device_id *id)
+{
+        return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
+                                THIS_MODULE);
+}
+
+static void sd_disconnect(struct usb_interface *intf)
+{
+#ifdef CONFIG_USB_GSPCA_SN9C20X_EVDEV
+        struct gspca_dev *gspca_dev = usb_get_intfdata(intf);
+
+        sn9c20x_input_cleanup(gspca_dev);
+#endif
+
+        gspca_disconnect(intf);
+}
+
+static struct usb_driver sd_driver = {
+        .name = MODULE_NAME,
+        .id_table = device_table,
+        .probe = sd_probe,
+        .disconnect = sd_disconnect,
+#ifdef CONFIG_PM
+        .suspend = gspca_suspend,
+        .resume = gspca_resume,
+        .reset_resume = gspca_resume,
+#endif
+};
+
+/* -- module insert / remove -- */
+static int __init sd_mod_init(void)
+{
+        int ret;
+        ret = usb_register(&sd_driver);
+        if (ret < 0)
+                return ret;
+        info("registered");
+        return 0;
+}
+static void __exit sd_mod_exit(void)
+{
+        usb_deregister(&sd_driver);
+        info("deregistered");
+}
+
+module_init(sd_mod_init);
+module_exit(sd_mod_exit);
diff --git a/drivers/media/video/gspca/sonixj.c b/drivers/media/video/gspca/sonixj.c
index 0d02f41fa7d0..d6332ab80669 100644
--- a/drivers/media/video/gspca/sonixj.c
+++ b/drivers/media/video/gspca/sonixj.c
@@ -1634,6 +1634,8 @@ static void setfreq(struct gspca_dev *gspca_dev)
 {
         struct sd *sd = (struct sd *) gspca_dev;
 
+        if (gspca_dev->ctrl_dis & (1 << FREQ_IDX))
+                return;
         if (sd->sensor == SENSOR_OV7660) {
                 switch (sd->freq) {
                 case 0: /* Banding filter disabled */
@@ -1735,6 +1737,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 
         /* create the JPEG header */
         sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
+        if (!sd->jpeg_hdr)
+                return -ENOMEM;
         jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
                         0x21);          /* JPEG 422 */
         jpeg_set_qual(sd->jpeg_hdr, sd->quality);
diff --git a/drivers/media/video/gspca/spca500.c b/drivers/media/video/gspca/spca500.c
index 8806b2ff82be..fab7ef85a6c1 100644
--- a/drivers/media/video/gspca/spca500.c
+++ b/drivers/media/video/gspca/spca500.c
@@ -670,6 +670,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 
         /* create the JPEG header */
         sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
+        if (!sd->jpeg_hdr)
+                return -ENOMEM;
         jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
                         0x22);          /* JPEG 411 */
         jpeg_set_qual(sd->jpeg_hdr, sd->quality);
diff --git a/drivers/media/video/gspca/stk014.c b/drivers/media/video/gspca/stk014.c
index f25be20cf1a6..47628964801e 100644
--- a/drivers/media/video/gspca/stk014.c
+++ b/drivers/media/video/gspca/stk014.c
@@ -333,6 +333,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 
         /* create the JPEG header */
         sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
+        if (!sd->jpeg_hdr)
+                return -ENOMEM;
         jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
                         0x22);          /* JPEG 411 */
         jpeg_set_qual(sd->jpeg_hdr, sd->quality);
diff --git a/drivers/media/video/gspca/stv06xx/stv06xx.h b/drivers/media/video/gspca/stv06xx/stv06xx.h
index 9df7137fe67e..992ce530f138 100644
--- a/drivers/media/video/gspca/stv06xx/stv06xx.h
+++ b/drivers/media/video/gspca/stv06xx/stv06xx.h
@@ -36,10 +36,6 @@
 
 #define STV_ISOC_ENDPOINT_ADDR          0x81
 
-#ifndef V4L2_PIX_FMT_SGRBG8
-#define V4L2_PIX_FMT_SGRBG8 v4l2_fourcc('G', 'R', 'B', 'G')
-#endif
-
 #define STV_REG23                       0x0423
 
 /* Control registers of the STV0600 ASIC */
diff --git a/drivers/media/video/gspca/stv06xx/stv06xx_hdcs.c b/drivers/media/video/gspca/stv06xx/stv06xx_hdcs.c
index 3039ec208f3a..e5024c8496ef 100644
--- a/drivers/media/video/gspca/stv06xx/stv06xx_hdcs.c
+++ b/drivers/media/video/gspca/stv06xx/stv06xx_hdcs.c
@@ -64,7 +64,7 @@ static struct v4l2_pix_format hdcs1x00_mode[] = {
         {
                 HDCS_1X00_DEF_WIDTH,
                 HDCS_1X00_DEF_HEIGHT,
-                V4L2_PIX_FMT_SBGGR8,
+                V4L2_PIX_FMT_SGRBG8,
                 V4L2_FIELD_NONE,
                 .sizeimage =
                         HDCS_1X00_DEF_WIDTH * HDCS_1X00_DEF_HEIGHT,
@@ -80,7 +80,7 @@ static struct v4l2_pix_format hdcs1020_mode[] = {
         {
                 HDCS_1020_DEF_WIDTH,
                 HDCS_1020_DEF_HEIGHT,
-                V4L2_PIX_FMT_SBGGR8,
+                V4L2_PIX_FMT_SGRBG8,
                 V4L2_FIELD_NONE,
                 .sizeimage =
                         HDCS_1020_DEF_WIDTH * HDCS_1020_DEF_HEIGHT,
@@ -131,9 +131,11 @@ static int hdcs_reg_write_seq(struct sd *sd, u8 reg, u8 *vals, u8 len)
                      (reg + len > 0xff)))
                 return -EINVAL;
 
-        for (i = 0; i < len; i++, reg++) {
-                regs[2*i] = reg;
-                regs[2*i+1] = vals[i];
+        for (i = 0; i < len; i++) {
+                regs[2 * i] = reg;
+                regs[2 * i + 1] = vals[i];
+                /* All addresses are shifted left one bit as bit 0 toggles r/w */
+                reg += 2;
         }
 
         return stv06xx_write_sensor_bytes(sd, regs, len);
@@ -174,7 +176,9 @@ static int hdcs_set_state(struct sd *sd, enum hdcs_power_state state)
         }
 
         ret = stv06xx_write_sensor(sd, HDCS_REG_CONTROL(sd), val);
-        if (ret < 0)
+
+        /* Update the state if the write succeeded */
+        if (!ret)
                 hdcs->state = state;
 
         return ret;
diff --git a/drivers/media/video/gspca/sunplus.c b/drivers/media/video/gspca/sunplus.c
index 9623f294bdac..5127bbf9dd26 100644
--- a/drivers/media/video/gspca/sunplus.c
+++ b/drivers/media/video/gspca/sunplus.c
@@ -973,6 +973,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 
         /* create the JPEG header */
         sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
+        if (!sd->jpeg_hdr)
+                return -ENOMEM;
         jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
                         0x22);          /* JPEG 411 */
         jpeg_set_qual(sd->jpeg_hdr, sd->quality);
diff --git a/drivers/media/video/gspca/zc3xx.c b/drivers/media/video/gspca/zc3xx.c
index 08422d315e68..3d2756f7874a 100644
--- a/drivers/media/video/gspca/zc3xx.c
+++ b/drivers/media/video/gspca/zc3xx.c
@@ -7243,6 +7243,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 
         /* create the JPEG header */
         sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
+        if (!sd->jpeg_hdr)
+                return -ENOMEM;
         jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
                         0x21);          /* JPEG 422 */
         jpeg_set_qual(sd->jpeg_hdr, sd->quality);
diff --git a/drivers/media/video/mt9v011.c b/drivers/media/video/mt9v011.c
new file mode 100644
index 000000000000..b2260de645f0
--- /dev/null
+++ b/drivers/media/video/mt9v011.c
@@ -0,0 +1,496 @@
+/*
+ * mt9v011 -Micron 1/4-Inch VGA Digital Image Sensor
+ *
+ * Copyright (c) 2009 Mauro Carvalho Chehab (mchehab@redhat.com)
+ * This code is placed under the terms of the GNU General Public License v2
+ */
+
+#include <linux/i2c.h>
+#include <linux/videodev2.h>
+#include <linux/delay.h>
+#include <asm/div64.h>
+#include <media/v4l2-device.h>
+#include "mt9v011.h"
+#include <media/v4l2-i2c-drv.h>
+#include <media/v4l2-chip-ident.h>
+
+MODULE_DESCRIPTION("Micron mt9v011 sensor driver");
+MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>");
+MODULE_LICENSE("GPL");
+
+
+static int debug;
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "Debug level (0-2)");
+
+/* supported controls */
+static struct v4l2_queryctrl mt9v011_qctrl[] = {
+        {
+                .id = V4L2_CID_GAIN,
+                .type = V4L2_CTRL_TYPE_INTEGER,
+                .name = "Gain",
+                .minimum = 0,
+                .maximum = (1 << 10) - 1,
+                .step = 1,
+                .default_value = 0x0020,
+                .flags = 0,
+        }, {
+                .id = V4L2_CID_RED_BALANCE,
+                .type = V4L2_CTRL_TYPE_INTEGER,
+                .name = "Red Balance",
+                .minimum = -1 << 9,
+                .maximum = (1 << 9) - 1,
+                .step = 1,
+                .default_value = 0,
+                .flags = 0,
+        }, {
+                .id = V4L2_CID_BLUE_BALANCE,
+                .type = V4L2_CTRL_TYPE_INTEGER,
+                .name = "Blue Balance",
+                .minimum = -1 << 9,
+                .maximum = (1 << 9) - 1,
+                .step = 1,
+                .default_value = 0,
+                .flags = 0,
+        },
+};
+
+struct mt9v011 {
+        struct v4l2_subdev sd;
+        unsigned width, height;
+        unsigned xtal;
+
+        u16 global_gain, red_bal, blue_bal;
+};
+
+static inline struct mt9v011 *to_mt9v011(struct v4l2_subdev *sd)
+{
+        return container_of(sd, struct mt9v011, sd);
+}
+
+static int mt9v011_read(struct v4l2_subdev *sd, unsigned char addr)
+{
+        struct i2c_client *c = v4l2_get_subdevdata(sd);
+        __be16 buffer;
+        int rc, val;
+
+        rc = i2c_master_send(c, &addr, 1);
+        if (rc != 1)
+                v4l2_dbg(0, debug, sd,
+                         "i2c i/o error: rc == %d (should be 1)\n", rc);
+
+        msleep(10);
+
+        rc = i2c_master_recv(c, (char *)&buffer, 2);
+        if (rc != 2)
+                v4l2_dbg(0, debug, sd,
+                         "i2c i/o error: rc == %d (should be 2)\n", rc);
+
+        val = be16_to_cpu(buffer);
+
+        v4l2_dbg(2, debug, sd, "mt9v011: read 0x%02x = 0x%04x\n", addr, val);
+
+        return val;
+}
+
+static void mt9v011_write(struct v4l2_subdev *sd, unsigned char addr,
+                                 u16 value)
+{
+        struct i2c_client *c = v4l2_get_subdevdata(sd);
+        unsigned char buffer[3];
+        int rc;
+
+        buffer[0] = addr;
+        buffer[1] = value >> 8;
+        buffer[2] = value & 0xff;
+
+        v4l2_dbg(2, debug, sd,
+                 "mt9v011: writing 0x%02x 0x%04x\n", buffer[0], value);
+        rc = i2c_master_send(c, buffer, 3);
+        if (rc != 3)
+                v4l2_dbg(0, debug, sd,
+                         "i2c i/o error: rc == %d (should be 3)\n", rc);
+}
+
+
+struct i2c_reg_value {
+        unsigned char reg;
+        u16           value;
+};
+
+/*
+ * Values used at the original driver
+ * Some values are marked as Reserved at the datasheet
+ */
+static const struct i2c_reg_value mt9v011_init_default[] = {
+                { R0D_MT9V011_RESET, 0x0001 },
+                { R0D_MT9V011_RESET, 0x0000 },
+
+                { R0C_MT9V011_SHUTTER_DELAY, 0x0000 },
+                { R09_MT9V011_SHUTTER_WIDTH, 0x1fc },
+
+                { R0A_MT9V011_CLK_SPEED, 0x0000 },
+                { R1E_MT9V011_DIGITAL_ZOOM,  0x0000 },
+                { R20_MT9V011_READ_MODE, 0x1000 },
+
+                { R07_MT9V011_OUT_CTRL, 0x0002 },       /* chip enable */
+};
+
+static void set_balance(struct v4l2_subdev *sd)
+{
+        struct mt9v011 *core = to_mt9v011(sd);
+        u16 green1_gain, green2_gain, blue_gain, red_gain;
+
+        green1_gain = core->global_gain;
+        green2_gain = core->global_gain;
+
+        blue_gain = core->global_gain +
+                    core->global_gain * core->blue_bal / (1 << 9);
+
+        red_gain = core->global_gain +
+                   core->global_gain * core->blue_bal / (1 << 9);
+
+        mt9v011_write(sd, R2B_MT9V011_GREEN_1_GAIN, green1_gain);
+        mt9v011_write(sd, R2E_MT9V011_GREEN_2_GAIN,  green1_gain);
+        mt9v011_write(sd, R2C_MT9V011_BLUE_GAIN, blue_gain);
+        mt9v011_write(sd, R2D_MT9V011_RED_GAIN, red_gain);
+}
+
+static void calc_fps(struct v4l2_subdev *sd)
+{
+        struct mt9v011 *core = to_mt9v011(sd);
+        unsigned height, width, hblank, vblank, speed;
+        unsigned row_time, t_time;
+        u64 frames_per_ms;
+        unsigned tmp;
+
+        height = mt9v011_read(sd, R03_MT9V011_HEIGHT);
+        width = mt9v011_read(sd, R04_MT9V011_WIDTH);
+        hblank = mt9v011_read(sd, R05_MT9V011_HBLANK);
+        vblank = mt9v011_read(sd, R06_MT9V011_VBLANK);
+        speed = mt9v011_read(sd, R0A_MT9V011_CLK_SPEED);
+
+        row_time = (width + 113 + hblank) * (speed + 2);
+        t_time = row_time * (height + vblank + 1);
+
+        frames_per_ms = core->xtal * 1000l;
+        do_div(frames_per_ms, t_time);
+        tmp = frames_per_ms;
+
+        v4l2_dbg(1, debug, sd, "Programmed to %u.%03u fps (%d pixel clcks)\n",
+                tmp / 1000, tmp % 1000, t_time);
+}
+
+static void set_res(struct v4l2_subdev *sd)
+{
+        struct mt9v011 *core = to_mt9v011(sd);
+        unsigned vstart, hstart;
+
+        /*
+         * The mt9v011 doesn't have scaling. So, in order to select the desired
+         * resolution, we're cropping at the middle of the sensor.
+         * hblank and vblank should be adjusted, in order to warrant that
+         * we'll preserve the line timings for 30 fps, no matter what resolution
+         * is selected.
+         * NOTE: datasheet says that width (and height) should be filled with
+         * width-1. However, this doesn't work, since one pixel per line will
+         * be missing.
+         */
+
+        hstart = 14 + (640 - core->width) / 2;
+        mt9v011_write(sd, R02_MT9V011_COLSTART, hstart);
+        mt9v011_write(sd, R04_MT9V011_WIDTH, core->width);
+        mt9v011_write(sd, R05_MT9V011_HBLANK, 771 - core->width);
+
+        vstart = 8 + (480 - core->height) / 2;
+        mt9v011_write(sd, R01_MT9V011_ROWSTART, vstart);
+        mt9v011_write(sd, R03_MT9V011_HEIGHT, core->height);
+        mt9v011_write(sd, R06_MT9V011_VBLANK, 508 - core->height);
+
+        calc_fps(sd);
+};
+
+static int mt9v011_reset(struct v4l2_subdev *sd, u32 val)
+{
+        int i;
+
+        for (i = 0; i < ARRAY_SIZE(mt9v011_init_default); i++)
+                mt9v011_write(sd, mt9v011_init_default[i].reg,
+                               mt9v011_init_default[i].value);
+
+        set_balance(sd);
+        set_res(sd);
+
+        return 0;
+};
+
+static int mt9v011_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+        struct mt9v011 *core = to_mt9v011(sd);
+
+        v4l2_dbg(1, debug, sd, "g_ctrl called\n");
+
+        switch (ctrl->id) {
+        case V4L2_CID_GAIN:
+                ctrl->value = core->global_gain;
+                return 0;
+        case V4L2_CID_RED_BALANCE:
+                ctrl->value = core->red_bal;
+                return 0;
+        case V4L2_CID_BLUE_BALANCE:
+                ctrl->value = core->blue_bal;
+                return 0;
+        }
+        return -EINVAL;
+}
+
+static int mt9v011_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
+{
+        int i;
+
+        v4l2_dbg(1, debug, sd, "queryctrl called\n");
+
+        for (i = 0; i < ARRAY_SIZE(mt9v011_qctrl); i++)
+                if (qc->id && qc->id == mt9v011_qctrl[i].id) {
+                        memcpy(qc, &(mt9v011_qctrl[i]),
+                               sizeof(*qc));
+                        return 0;
+                }
+
+        return -EINVAL;
+}
+
+
+static int mt9v011_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+        struct mt9v011 *core = to_mt9v011(sd);
+        u8 i, n;
+        n = ARRAY_SIZE(mt9v011_qctrl);
+
+        for (i = 0; i < n; i++) {
+                if (ctrl->id != mt9v011_qctrl[i].id)
+                        continue;
+                if (ctrl->value < mt9v011_qctrl[i].minimum ||
+                    ctrl->value > mt9v011_qctrl[i].maximum)
+                        return -ERANGE;
+                v4l2_dbg(1, debug, sd, "s_ctrl: id=%d, value=%d\n",
+                                        ctrl->id, ctrl->value);
+                break;
+        }
+
+        switch (ctrl->id) {
+        case V4L2_CID_GAIN:
+                core->global_gain = ctrl->value;
+                break;
+        case V4L2_CID_RED_BALANCE:
+                core->red_bal = ctrl->value;
+                break;
+        case V4L2_CID_BLUE_BALANCE:
+                core->blue_bal = ctrl->value;
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        set_balance(sd);
+
+        return 0;
+}
+
+static int mt9v011_enum_fmt(struct v4l2_subdev *sd, struct v4l2_fmtdesc *fmt)
+{
+        if (fmt->index > 0)
+                return -EINVAL;
+
+        fmt->flags = 0;
+        strcpy(fmt->description, "8 bpp Bayer GRGR..BGBG");
+        fmt->pixelformat = V4L2_PIX_FMT_SGRBG8;
+
+        return 0;
+}
+
+static int mt9v011_try_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
+{
+        struct v4l2_pix_format *pix = &fmt->fmt.pix;
+
+        if (pix->pixelformat != V4L2_PIX_FMT_SGRBG8)
+                return -EINVAL;
+
+        v4l_bound_align_image(&pix->width, 48, 639, 1,
+                              &pix->height, 32, 480, 1, 0);
+
+        return 0;
+}
+
+static int mt9v011_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
+{
+        struct v4l2_pix_format *pix = &fmt->fmt.pix;
+        struct mt9v011 *core = to_mt9v011(sd);
+        int rc;
+
+        rc = mt9v011_try_fmt(sd, fmt);
+        if (rc < 0)
+                return -EINVAL;
+
+        core->width = pix->width;
+        core->height = pix->height;
+
+        set_res(sd);
+
+        return 0;
+}
+
+static int mt9v011_s_config(struct v4l2_subdev *sd, int dumb, void *data)
+{
+        struct mt9v011 *core = to_mt9v011(sd);
+        unsigned *xtal = data;
+
+        v4l2_dbg(1, debug, sd, "s_config called\n");
+
+        if (xtal) {
+                core->xtal = *xtal;
+                v4l2_dbg(1, debug, sd, "xtal set to %d.%03d MHz\n",
+                         *xtal / 1000000, (*xtal / 1000) % 1000);
+        }
+
+        return 0;
+}
+
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int mt9v011_g_register(struct v4l2_subdev *sd,
+                              struct v4l2_dbg_register *reg)
+{
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+        if (!v4l2_chip_match_i2c_client(client, &reg->match))
+                return -EINVAL;
+        if (!capable(CAP_SYS_ADMIN))
+                return -EPERM;
+
+        reg->val = mt9v011_read(sd, reg->reg & 0xff);
+        reg->size = 2;
+
+        return 0;
+}
+
+static int mt9v011_s_register(struct v4l2_subdev *sd,
+                              struct v4l2_dbg_register *reg)
+{
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+        if (!v4l2_chip_match_i2c_client(client, &reg->match))
+                return -EINVAL;
+        if (!capable(CAP_SYS_ADMIN))
+                return -EPERM;
+
+        mt9v011_write(sd, reg->reg & 0xff, reg->val & 0xffff);
+
+        return 0;
+}
+#endif
+
+static int mt9v011_g_chip_ident(struct v4l2_subdev *sd,
+                                struct v4l2_dbg_chip_ident *chip)
+{
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+        return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_MT9V011,
+                                          MT9V011_VERSION);
+}
+
+static const struct v4l2_subdev_core_ops mt9v011_core_ops = {
+        .queryctrl = mt9v011_queryctrl,
+        .g_ctrl = mt9v011_g_ctrl,
+        .s_ctrl = mt9v011_s_ctrl,
+        .reset = mt9v011_reset,
+        .s_config = mt9v011_s_config,
+        .g_chip_ident = mt9v011_g_chip_ident,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+        .g_register = mt9v011_g_register,
+        .s_register = mt9v011_s_register,
+#endif
+};
+
+static const struct v4l2_subdev_video_ops mt9v011_video_ops = {
+        .enum_fmt = mt9v011_enum_fmt,
+        .try_fmt = mt9v011_try_fmt,
+        .s_fmt = mt9v011_s_fmt,
+};
+
+static const struct v4l2_subdev_ops mt9v011_ops = {
+        .core  = &mt9v011_core_ops,
+        .video = &mt9v011_video_ops,
+};
+
+
+/****************************************************************************
+                        I2C Client & Driver
+ ****************************************************************************/
+
+static int mt9v011_probe(struct i2c_client *c,
+                         const struct i2c_device_id *id)
+{
+        u16 version;
+        struct mt9v011 *core;
+        struct v4l2_subdev *sd;
+
+        /* Check if the adapter supports the needed features */
+        if (!i2c_check_functionality(c->adapter,
+             I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
+                return -EIO;
+
+        core = kzalloc(sizeof(struct mt9v011), GFP_KERNEL);
+        if (!core)
+                return -ENOMEM;
+
+        sd = &core->sd;
+        v4l2_i2c_subdev_init(sd, c, &mt9v011_ops);
+
+        /* Check if the sensor is really a MT9V011 */
+        version = mt9v011_read(sd, R00_MT9V011_CHIP_VERSION);
+        if (version != MT9V011_VERSION) {
+                v4l2_info(sd, "*** unknown micron chip detected (0x%04x.\n",
+                          version);
+                kfree(core);
+                return -EINVAL;
+        }
+
+        core->global_gain = 0x0024;
+        core->width  = 640;
+        core->height = 480;
+        core->xtal = 27000000;  /* Hz */
+
+        v4l_info(c, "chip found @ 0x%02x (%s)\n",
+                 c->addr << 1, c->adapter->name);
+
+        return 0;
+}
+
+static int mt9v011_remove(struct i2c_client *c)
+{
+        struct v4l2_subdev *sd = i2c_get_clientdata(c);
+
+        v4l2_dbg(1, debug, sd,
+                "mt9v011.c: removing mt9v011 adapter on address 0x%x\n",
+                c->addr << 1);
+
+        v4l2_device_unregister_subdev(sd);
+        kfree(to_mt9v011(sd));
+        return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static const struct i2c_device_id mt9v011_id[] = {
+        { "mt9v011", 0 },
+        { }
+};
+MODULE_DEVICE_TABLE(i2c, mt9v011_id);
+
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+        .name = "mt9v011",
+        .probe = mt9v011_probe,
+        .remove = mt9v011_remove,
+        .id_table = mt9v011_id,
+};
diff --git a/drivers/media/video/mt9v011.h b/drivers/media/video/mt9v011.h
new file mode 100644
index 000000000000..9e443ee30558
--- /dev/null
+++ b/drivers/media/video/mt9v011.h
@@ -0,0 +1,35 @@
+/*
+ * mt9v011 -Micron 1/4-Inch VGA Digital Image Sensor
+ *
+ * Copyright (c) 2009 Mauro Carvalho Chehab (mchehab@redhat.com)
+ * This code is placed under the terms of the GNU General Public License v2
+ */
+
+#ifndef MT9V011_H_
+#define MT9V011_H_
+
+#define R00_MT9V011_CHIP_VERSION        0x00
+#define R01_MT9V011_ROWSTART            0x01
+#define R02_MT9V011_COLSTART            0x02
+#define R03_MT9V011_HEIGHT              0x03
+#define R04_MT9V011_WIDTH               0x04
+#define R05_MT9V011_HBLANK              0x05
+#define R06_MT9V011_VBLANK              0x06
+#define R07_MT9V011_OUT_CTRL            0x07
+#define R09_MT9V011_SHUTTER_WIDTH       0x09
+#define R0A_MT9V011_CLK_SPEED           0x0a
+#define R0B_MT9V011_RESTART             0x0b
+#define R0C_MT9V011_SHUTTER_DELAY       0x0c
+#define R0D_MT9V011_RESET               0x0d
+#define R1E_MT9V011_DIGITAL_ZOOM        0x1e
+#define R20_MT9V011_READ_MODE           0x20
+#define R2B_MT9V011_GREEN_1_GAIN        0x2b
+#define R2C_MT9V011_BLUE_GAIN           0x2c
+#define R2D_MT9V011_RED_GAIN            0x2d
+#define R2E_MT9V011_GREEN_2_GAIN        0x2e
+#define R35_MT9V011_GLOBAL_GAIN         0x35
+#define RF1_MT9V011_CHIP_ENABLE         0xf1
+
+#define MT9V011_VERSION                 0x8243
+
+#endif
diff --git a/drivers/media/video/pwc/pwc-if.c b/drivers/media/video/pwc/pwc-if.c
index db25c3034c11..8d17cf613306 100644
--- a/drivers/media/video/pwc/pwc-if.c
+++ b/drivers/media/video/pwc/pwc-if.c
@@ -62,6 +62,7 @@
 #include <linux/module.h>
 #include <linux/poll.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #ifdef CONFIG_USB_PWC_INPUT_EVDEV
 #include <linux/usb/input.h>
 #endif
diff --git a/drivers/media/video/pwc/pwc.h b/drivers/media/video/pwc/pwc.h
index 0be6f814f539..0b658dee05a4 100644
--- a/drivers/media/video/pwc/pwc.h
+++ b/drivers/media/video/pwc/pwc.h
@@ -29,7 +29,6 @@
 #include <linux/usb.h>
 #include <linux/spinlock.h>
 #include <linux/wait.h>
-#include <linux/smp_lock.h>
 #include <linux/version.h>
 #include <linux/mutex.h>
 #include <linux/mm.h>
diff --git a/drivers/media/video/s2255drv.c b/drivers/media/video/s2255drv.c
index 6be845ccc7d7..9e3262c0ba37 100644
--- a/drivers/media/video/s2255drv.c
+++ b/drivers/media/video/s2255drv.c
@@ -48,6 +48,7 @@
 #include <linux/videodev2.h>
 #include <linux/version.h>
 #include <linux/mm.h>
+#include <linux/smp_lock.h>
 #include <media/videobuf-vmalloc.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
diff --git a/drivers/media/video/saa5246a.c b/drivers/media/video/saa5246a.c
index 155804b061e9..b624a4c01fdc 100644
--- a/drivers/media/video/saa5246a.c
+++ b/drivers/media/video/saa5246a.c
@@ -43,7 +43,6 @@
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/i2c.h>
-#include <linux/smp_lock.h>
 #include <linux/mutex.h>
 #include <linux/videotext.h>
 #include <linux/videodev2.h>
diff --git a/drivers/media/video/saa5249.c b/drivers/media/video/saa5249.c
index 271d6e931b75..12835fb82c95 100644
--- a/drivers/media/video/saa5249.c
+++ b/drivers/media/video/saa5249.c
@@ -46,7 +46,6 @@
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/i2c.h>
-#include <linux/smp_lock.h>
 #include <linux/mutex.h>
 #include <linux/delay.h>
 #include <linux/videotext.h>
diff --git a/drivers/media/video/saa7134/saa7134-empress.c b/drivers/media/video/saa7134/saa7134-empress.c
index add1757f8930..296788c3bf0e 100644
--- a/drivers/media/video/saa7134/saa7134-empress.c
+++ b/drivers/media/video/saa7134/saa7134-empress.c
@@ -22,6 +22,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/delay.h>
 
 #include "saa7134-reg.h"
diff --git a/drivers/media/video/se401.c b/drivers/media/video/se401.c
index c8f05297d0f0..85ffc2cba039 100644
--- a/drivers/media/video/se401.c
+++ b/drivers/media/video/se401.c
@@ -31,6 +31,7 @@ static const char version[] = "0.24";
 #include <linux/init.h>
 #include <linux/vmalloc.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/pagemap.h>
 #include <linux/usb.h>
 #include "se401.h"
diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c
index 16f595d4337a..9f5ae8167855 100644
--- a/drivers/media/video/soc_camera.c
+++ b/drivers/media/video/soc_camera.c
@@ -237,11 +237,11 @@ static int soc_camera_init_user_formats(struct soc_camera_device *icd)
                 return -ENOMEM;
 
         icd->num_user_formats = fmts;
-        fmts = 0;
 
         dev_dbg(&icd->dev, "Found %d supported formats.\n", fmts);
 
         /* Second pass - actually fill data formats */
+        fmts = 0;
         for (i = 0; i < icd->num_formats; i++)
                 if (!ici->ops->get_formats) {
                         icd->user_formats[i].host_fmt = icd->formats + i;
@@ -877,8 +877,11 @@ static int soc_camera_probe(struct device *dev)
                         (unsigned short)~0;
 
                 ret = soc_camera_init_user_formats(icd);
-                if (ret < 0)
+                if (ret < 0) {
+                        if (icd->ops->remove)
+                                icd->ops->remove(icd);
                         goto eiufmt;
+                }
 
                 icd->height     = DEFAULT_HEIGHT;
                 icd->width      = DEFAULT_WIDTH;
@@ -902,8 +905,10 @@ static int soc_camera_remove(struct device *dev)
 {
         struct soc_camera_device *icd = to_soc_camera_dev(dev);
 
+        mutex_lock(&icd->video_lock);
         if (icd->ops->remove)
                 icd->ops->remove(icd);
+        mutex_unlock(&icd->video_lock);
 
         soc_camera_free_user_formats(icd);
 
@@ -1145,6 +1150,7 @@ evidallocd:
 }
 EXPORT_SYMBOL(soc_camera_video_start);
 
+/* Called from client .remove() methods with .video_lock held */
 void soc_camera_video_stop(struct soc_camera_device *icd)
 {
         struct video_device *vdev = icd->vdev;
@@ -1154,10 +1160,8 @@ void soc_camera_video_stop(struct soc_camera_device *icd)
         if (!icd->dev.parent || !vdev)
                 return;
 
-        mutex_lock(&icd->video_lock);
         video_unregister_device(vdev);
         icd->vdev = NULL;
-        mutex_unlock(&icd->video_lock);
 }
 EXPORT_SYMBOL(soc_camera_video_stop);
 
diff --git a/drivers/media/video/stk-webcam.c b/drivers/media/video/stk-webcam.c
index 2e5937047278..4d6785e63455 100644
--- a/drivers/media/video/stk-webcam.c
+++ b/drivers/media/video/stk-webcam.c
@@ -27,6 +27,7 @@
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 
 #include <linux/usb.h>
 #include <linux/mm.h>
diff --git a/drivers/media/video/stradis.c b/drivers/media/video/stradis.c
index 0eb313082c97..eaada39c76fd 100644
--- a/drivers/media/video/stradis.c
+++ b/drivers/media/video/stradis.c
@@ -26,6 +26,7 @@
 #include <linux/kernel.h>
 #include <linux/major.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/poll.h>
diff --git a/drivers/media/video/stv680.c b/drivers/media/video/stv680.c
index 75f286f7a2e9..8b4e7dafce7b 100644
--- a/drivers/media/video/stv680.c
+++ b/drivers/media/video/stv680.c
@@ -62,6 +62,7 @@
 #include <linux/init.h>
 #include <linux/vmalloc.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/pagemap.h>
 #include <linux/errno.h>
 #include <linux/videodev.h>
diff --git a/drivers/media/video/usbvideo/vicam.c b/drivers/media/video/usbvideo/vicam.c
index 8d73979596f9..45fce39ec9ad 100644
--- a/drivers/media/video/usbvideo/vicam.c
+++ b/drivers/media/video/usbvideo/vicam.c
@@ -43,6 +43,7 @@
 #include <linux/vmalloc.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/mutex.h>
 #include <linux/firmware.h>
 #include <linux/ihex.h>
diff --git a/drivers/media/video/usbvision/usbvision-video.c b/drivers/media/video/usbvision/usbvision-video.c
index 90b58914f984..90d9b5c0e9a7 100644
--- a/drivers/media/video/usbvision/usbvision-video.c
+++ b/drivers/media/video/usbvision/usbvision-video.c
@@ -50,6 +50,7 @@
 #include <linux/list.h>
 #include <linux/timer.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/mm.h>
 #include <linux/utsname.h>
 #include <linux/highmem.h>
diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
index 31eac66411d7..a7f1b69a7dab 100644
--- a/drivers/media/video/v4l2-dev.c
+++ b/drivers/media/video/v4l2-dev.c
@@ -25,7 +25,6 @@
 #include <linux/init.h>
 #include <linux/kmod.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <asm/uaccess.h>
 #include <asm/system.h>
 
diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c
index cd7266858462..7705fc6baf00 100644
--- a/drivers/media/video/vivi.c
+++ b/drivers/media/video/vivi.c
@@ -343,6 +343,53 @@ static struct bar_std bars[] = {
 #define TO_U(r, g, b) \
         (((-9714 * r - 19070 * g + 28784 * b + 32768) >> 16) + 128)
 
+/* precalculate color bar values to speed up rendering */
+static void precalculate_bars(struct vivi_fh *fh)
+{
+        struct vivi_dev *dev = fh->dev;
+        unsigned char r, g, b;
+        int k, is_yuv;
+
+        fh->input = dev->input;
+
+        for (k = 0; k < 8; k++) {
+                r = bars[fh->input].bar[k][0];
+                g = bars[fh->input].bar[k][1];
+                b = bars[fh->input].bar[k][2];
+                is_yuv = 0;
+
+                switch (fh->fmt->fourcc) {
+                case V4L2_PIX_FMT_YUYV:
+                case V4L2_PIX_FMT_UYVY:
+                        is_yuv = 1;
+                        break;
+                case V4L2_PIX_FMT_RGB565:
+                case V4L2_PIX_FMT_RGB565X:
+                        r >>= 3;
+                        g >>= 2;
+                        b >>= 3;
+                        break;
+                case V4L2_PIX_FMT_RGB555:
+                case V4L2_PIX_FMT_RGB555X:
+                        r >>= 3;
+                        g >>= 3;
+                        b >>= 3;
+                        break;
+                }
+
+                if (is_yuv) {
+                        fh->bars[k][0] = TO_Y(r, g, b); /* Luma */
+                        fh->bars[k][1] = TO_U(r, g, b); /* Cb */
+                        fh->bars[k][2] = TO_V(r, g, b); /* Cr */
+                } else {
+                        fh->bars[k][0] = r;
+                        fh->bars[k][1] = g;
+                        fh->bars[k][2] = b;
+                }
+        }
+
+}
+
 #define TSTAMP_MIN_Y    24
 #define TSTAMP_MAX_Y    (TSTAMP_MIN_Y + 15)
 #define TSTAMP_INPUT_X  10
@@ -755,6 +802,8 @@ buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
         buf->vb.height = fh->height;
         buf->vb.field  = field;
 
+        precalculate_bars(fh);
+
         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
                 rc = videobuf_iolock(vq, &buf->vb, NULL);
                 if (rc < 0)
@@ -893,53 +942,6 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
         return 0;
 }
 
-/* precalculate color bar values to speed up rendering */
-static void precalculate_bars(struct vivi_fh *fh)
-{
-        struct vivi_dev *dev = fh->dev;
-        unsigned char r, g, b;
-        int k, is_yuv;
-
-        fh->input = dev->input;
-
-        for (k = 0; k < 8; k++) {
-                r = bars[fh->input].bar[k][0];
-                g = bars[fh->input].bar[k][1];
-                b = bars[fh->input].bar[k][2];
-                is_yuv = 0;
-
-                switch (fh->fmt->fourcc) {
-                case V4L2_PIX_FMT_YUYV:
-                case V4L2_PIX_FMT_UYVY:
-                        is_yuv = 1;
-                        break;
-                case V4L2_PIX_FMT_RGB565:
-                case V4L2_PIX_FMT_RGB565X:
-                        r >>= 3;
-                        g >>= 2;
-                        b >>= 3;
-                        break;
-                case V4L2_PIX_FMT_RGB555:
-                case V4L2_PIX_FMT_RGB555X:
-                        r >>= 3;
-                        g >>= 3;
-                        b >>= 3;
-                        break;
-                }
-
-                if (is_yuv) {
-                        fh->bars[k][0] = TO_Y(r, g, b); /* Luma */
-                        fh->bars[k][1] = TO_U(r, g, b); /* Cb */
-                        fh->bars[k][2] = TO_V(r, g, b); /* Cr */
-                } else {
-                        fh->bars[k][0] = r;
-                        fh->bars[k][1] = g;
-                        fh->bars[k][2] = b;
-                }
-        }
-
-}
-
 /*FIXME: This seems to be generic enough to be at videodev2 */
 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
                                         struct v4l2_format *f)
@@ -965,8 +967,6 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
         fh->vb_vidq.field = f->fmt.pix.field;
         fh->type          = f->type;
 
-        precalculate_bars(fh);
-
         ret = 0;
 out:
         mutex_unlock(&q->vb_lock);
@@ -1357,6 +1357,7 @@ static int __init vivi_create_instance(int inst)
                 goto unreg_dev;
 
         *vfd = vivi_template;
+        vfd->debug = debug;
 
         ret = video_register_device(vfd, VFL_TYPE_GRABBER, video_nr);
         if (ret < 0)
diff --git a/drivers/media/video/zoran/zoran_driver.c b/drivers/media/video/zoran/zoran_driver.c
index 3d7df32a3d87..bcdefb1bcb3d 100644
--- a/drivers/media/video/zoran/zoran_driver.c
+++ b/drivers/media/video/zoran/zoran_driver.c
@@ -49,6 +49,7 @@
 #include <linux/module.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/pci.h>
 #include <linux/vmalloc.h>
 #include <linux/wait.h>
diff --git a/drivers/mfd/dm355evm_msp.c b/drivers/mfd/dm355evm_msp.c
index 7ac12cb0be4a..5b6e58a3ba46 100644
--- a/drivers/mfd/dm355evm_msp.c
+++ b/drivers/mfd/dm355evm_msp.c
@@ -32,8 +32,7 @@
  * This driver was tested with firmware revision A4.
  */
 
-#if defined(CONFIG_KEYBOARD_DM355EVM) \
-                || defined(CONFIG_KEYBOARD_DM355EVM_MODULE)
+#if defined(CONFIG_INPUT_DM355EVM) || defined(CONFIG_INPUT_DM355EVM_MODULE)
 #define msp_has_keyboard()      true
 #else
 #define msp_has_keyboard()      false
diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c
index 671a7efe86a8..c1de4afa89a6 100644
--- a/drivers/mfd/ezx-pcap.c
+++ b/drivers/mfd/ezx-pcap.c
@@ -238,8 +238,10 @@ static irqreturn_t pcap_adc_irq(int irq, void *_pcap)
         mutex_lock(&pcap->adc_mutex);
         req = pcap->adc_queue[pcap->adc_head];
 
-        if (WARN(!req, KERN_WARNING "adc irq without pending request\n"))
+        if (WARN(!req, KERN_WARNING "adc irq without pending request\n")) {
+                mutex_unlock(&pcap->adc_mutex);
                 return IRQ_HANDLED;
+        }
 
         /* read requested channels results */
         ezx_pcap_read(pcap, PCAP_REG_ADC, &tmp);
diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index 4c7b7962f6b8..0cc5eeff5ee8 100644
--- a/drivers/mfd/sm501.c
+++ b/drivers/mfd/sm501.c
@@ -367,7 +367,8 @@ int sm501_unit_power(struct device *dev, unsigned int unit, unsigned int to)
                 break;
 
         default:
-                return -1;
+                gate = -1;
+                goto already;
         }
 
         writel(mode, sm->regs + SM501_POWER_MODE_CONTROL);
diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c
index bae61b22501c..7d430835655f 100644
--- a/drivers/mfd/twl4030-irq.c
+++ b/drivers/mfd/twl4030-irq.c
@@ -180,14 +180,9 @@ static struct completion irq_event;
 static int twl4030_irq_thread(void *data)
 {
         long irq = (long)data;
-        struct irq_desc *desc = irq_to_desc(irq);
         static unsigned i2c_errors;
         static const unsigned max_i2c_errors = 100;
 
-        if (!desc) {
-                pr_err("twl4030: Invalid IRQ: %ld\n", irq);
-                return -EINVAL;
-        }
 
         current->flags |= PF_NOFREEZE;
 
@@ -240,7 +235,7 @@ static int twl4030_irq_thread(void *data)
                 }
                 local_irq_enable();
 
-                desc->chip->unmask(irq);
+                enable_irq(irq);
         }
 
         return 0;
@@ -255,25 +250,13 @@ static int twl4030_irq_thread(void *data)
  * thread.  All we do here is acknowledge and mask the interrupt and wakeup
  * the kernel thread.
  */
-static void handle_twl4030_pih(unsigned int irq, struct irq_desc *desc)
+static irqreturn_t handle_twl4030_pih(int irq, void *devid)
 {
         /* Acknowledge, clear *AND* mask the interrupt... */
-        desc->chip->ack(irq);
-        complete(&irq_event);
-}
-
-static struct task_struct *start_twl4030_irq_thread(long irq)
-{
-        struct task_struct *thread;
-
-        init_completion(&irq_event);
-        thread = kthread_run(twl4030_irq_thread, (void *)irq, "twl4030-irq");
-        if (!thread)
-                pr_err("twl4030: could not create irq %ld thread!\n", irq);
-
-        return thread;
+        disable_irq_nosync(irq);
+        complete(devid);
+        return IRQ_HANDLED;
 }
-
 /*----------------------------------------------------------------------*/
 
 /*
@@ -734,18 +717,28 @@ int twl_init_irq(int irq_num, unsigned irq_base, unsigned irq_end)
         }
 
         /* install an irq handler to demultiplex the TWL4030 interrupt */
-        task = start_twl4030_irq_thread(irq_num);
-        if (!task) {
-                pr_err("twl4030: irq thread FAIL\n");
-                status = -ESRCH;
-                goto fail;
-        }
 
-        set_irq_data(irq_num, task);
-        set_irq_chained_handler(irq_num, handle_twl4030_pih);
 
-        return status;
+        init_completion(&irq_event);
 
+        status = request_irq(irq_num, handle_twl4030_pih, IRQF_DISABLED,
+                                "TWL4030-PIH", &irq_event);
+        if (status < 0) {
+                pr_err("twl4030: could not claim irq%d: %d\n", irq_num, status);
+                goto fail_rqirq;
+        }
+
+        task = kthread_run(twl4030_irq_thread, (void *)irq_num, "twl4030-irq");
+        if (IS_ERR(task)) {
+                pr_err("twl4030: could not create irq %d thread!\n", irq_num);
+                status = PTR_ERR(task);
+                goto fail_kthread;
+        }
+        return status;
+fail_kthread:
+        free_irq(irq_num, &irq_event);
+fail_rqirq:
+        /* clean up twl4030_sih_setup */
 fail:
         for (i = irq_base; i < irq_end; i++)
                 set_irq_chip_and_handler(i, NULL, NULL);
diff --git a/drivers/misc/cb710/sgbuf2.c b/drivers/misc/cb710/sgbuf2.c
index d38a7acdb6ec..d019746551f3 100644
--- a/drivers/misc/cb710/sgbuf2.c
+++ b/drivers/misc/cb710/sgbuf2.c
@@ -114,7 +114,6 @@ static void sg_dwiter_write_slow(struct sg_mapping_iter *miter, uint32_t data)
                 if (!left)
                         return;
                 addr += len;
-                flush_kernel_dcache_page(miter->page);
         } while (sg_dwiter_next(miter));
 }
 
@@ -142,9 +141,6 @@ void cb710_sg_dwiter_write_next_block(struct sg_mapping_iter *miter, uint32_t da
                         return;
         } else
                 sg_dwiter_write_slow(miter, data);
-
-        if (miter->length == miter->consumed)
-                flush_kernel_dcache_page(miter->page);
 }
 EXPORT_SYMBOL_GPL(cb710_sg_dwiter_write_next_block);
 
diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c
index b34cb5f79eea..2e535a0ccd5e 100644
--- a/drivers/misc/eeprom/at25.c
+++ b/drivers/misc/eeprom/at25.c
@@ -173,6 +173,7 @@ at25_ee_write(struct at25_data *at25, const char *buf, loff_t off,
                 unsigned        segment;
                 unsigned        offset = (unsigned) off;
                 u8              *cp = bounce + 1;
+                int             sr;
 
                 *cp = AT25_WREN;
                 status = spi_write(at25->spi, cp, 1);
@@ -214,7 +215,6 @@ at25_ee_write(struct at25_data *at25, const char *buf, loff_t off,
                 timeout = jiffies + msecs_to_jiffies(EE_TIMEOUT);
                 retries = 0;
                 do {
-                        int     sr;
 
                         sr = spi_w8r8(at25->spi, AT25_RDSR);
                         if (sr < 0 || (sr & AT25_SR_nRDY)) {
@@ -228,7 +228,7 @@ at25_ee_write(struct at25_data *at25, const char *buf, loff_t off,
                                 break;
                 } while (retries++ < 3 || time_before_eq(jiffies, timeout));
 
-                if (time_after(jiffies, timeout)) {
+                if ((sr < 0) || (sr & AT25_SR_nRDY)) {
                         dev_err(&at25->spi->dev,
                                 "write %d bytes offset %d, "
                                 "timeout after %u msecs\n",
diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c
index fa2d93a9fb8d..aed609832bc2 100644
--- a/drivers/misc/sgi-gru/grufile.c
+++ b/drivers/misc/sgi-gru/grufile.c
@@ -29,7 +29,6 @@
 #include <linux/slab.h>
 #include <linux/mm.h>
 #include <linux/io.h>
-#include <linux/smp_lock.h>
 #include <linux/spinlock.h>
 #include <linux/device.h>
 #include <linux/miscdevice.h>
diff --git a/drivers/misc/sgi-gru/grukservices.c b/drivers/misc/sgi-gru/grukservices.c
index eedbf9c32760..79689b10f937 100644
--- a/drivers/misc/sgi-gru/grukservices.c
+++ b/drivers/misc/sgi-gru/grukservices.c
@@ -24,7 +24,6 @@
 #include <linux/errno.h>
 #include <linux/slab.h>
 #include <linux/mm.h>
-#include <linux/smp_lock.h>
 #include <linux/spinlock.h>
 #include <linux/device.h>
 #include <linux/miscdevice.h>
diff --git a/drivers/misc/sgi-xp/xpnet.c b/drivers/misc/sgi-xp/xpnet.c
index 8d1c60a3f0df..5d778ec8cdb2 100644
--- a/drivers/misc/sgi-xp/xpnet.c
+++ b/drivers/misc/sgi-xp/xpnet.c
@@ -235,7 +235,7 @@ xpnet_receive(short partid, int channel, struct xpnet_message *msg)
         skb->ip_summed = CHECKSUM_UNNECESSARY;
 
         dev_dbg(xpnet, "passing skb to network layer\n"
-                KERN_DEBUG "\tskb->head=0x%p skb->data=0x%p skb->tail=0x%p "
+                "\tskb->head=0x%p skb->data=0x%p skb->tail=0x%p "
                 "skb->end=0x%p skb->len=%d\n",
                 (void *)skb->head, (void *)skb->data, skb_tail_pointer(skb),
                 skb_end_pointer(skb), skb->len);
@@ -399,7 +399,7 @@ xpnet_send(struct sk_buff *skb, struct xpnet_pending_msg *queued_msg,
         msg->buf_pa = xp_pa((void *)start_addr);
 
         dev_dbg(xpnet, "sending XPC message to %d:%d\n"
-                KERN_DEBUG "msg->buf_pa=0x%lx, msg->size=%u, "
+                "msg->buf_pa=0x%lx, msg->size=%u, "
                 "msg->leadin_ignore=%u, msg->tailout_ignore=%u\n",
                 dest_partid, XPC_NET_CHANNEL, msg->buf_pa, msg->size,
                 msg->leadin_ignore, msg->tailout_ignore);
diff --git a/drivers/mmc/host/cb710-mmc.c b/drivers/mmc/host/cb710-mmc.c
index 11efefb1af51..4e72964a7b43 100644
--- a/drivers/mmc/host/cb710-mmc.c
+++ b/drivers/mmc/host/cb710-mmc.c
@@ -278,7 +278,7 @@ static int cb710_mmc_receive(struct cb710_slot *slot, struct mmc_data *data)
         if (unlikely(data->blksz & 15 && (data->blocks != 1 || data->blksz != 8)))
                 return -EINVAL;
 
-        sg_miter_start(&miter, data->sg, data->sg_len, 0);
+        sg_miter_start(&miter, data->sg, data->sg_len, SG_MITER_TO_SG);
 
         cb710_modify_port_8(slot, CB710_MMC_CONFIG2_PORT,
                 15, CB710_MMC_C2_READ_PIO_SIZE_MASK);
@@ -307,7 +307,7 @@ static int cb710_mmc_receive(struct cb710_slot *slot, struct mmc_data *data)
                         goto out;
         }
 out:
-        cb710_sg_miter_stop_writing(&miter);
+        sg_miter_stop(&miter);
         return err;
 }
 
@@ -322,7 +322,7 @@ static int cb710_mmc_send(struct cb710_slot *slot, struct mmc_data *data)
         if (unlikely(data->blocks > 1 && data->blksz & 15))
                 return -EINVAL;
 
-        sg_miter_start(&miter, data->sg, data->sg_len, 0);
+        sg_miter_start(&miter, data->sg, data->sg_len, SG_MITER_FROM_SG);
 
         cb710_modify_port_8(slot, CB710_MMC_CONFIG2_PORT,
                 0, CB710_MMC_C2_READ_PIO_SIZE_MASK);
diff --git a/drivers/mmc/host/imxmmc.c b/drivers/mmc/host/imxmmc.c
index e0be21a4a696..bf98d7cc928a 100644
--- a/drivers/mmc/host/imxmmc.c
+++ b/drivers/mmc/host/imxmmc.c
@@ -652,7 +652,7 @@ static irqreturn_t imxmci_irq(int irq, void *devid)
         set_bit(IMXMCI_PEND_STARTED_b, &host->pending_events);
         tasklet_schedule(&host->tasklet);
 
-        return IRQ_RETVAL(handled);;
+        return IRQ_RETVAL(handled);
 }
 
 static void imxmci_tasklet_fnc(unsigned long data)
diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c
index 240608cc7ae9..a461017ce5ce 100644
--- a/drivers/mmc/host/mmc_spi.c
+++ b/drivers/mmc/host/mmc_spi.c
@@ -1313,6 +1313,12 @@ static int mmc_spi_probe(struct spi_device *spi)
         struct mmc_spi_host     *host;
         int                     status;
 
+        /* We rely on full duplex transfers, mostly to reduce
+         * per-transfer overheads (by making fewer transfers).
+         */
+        if (spi->master->flags & SPI_MASTER_HALF_DUPLEX)
+                return -EINVAL;
+
         /* MMC and SD specs only seem to care that sampling is on the
          * rising edge ... meaning SPI modes 0 or 3.  So either SPI mode
          * should be legit.  We'll use mode 0 since the steady state is 0,
diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
index b56d72ff06e9..34e23489811a 100644
--- a/drivers/mmc/host/mvsdio.c
+++ b/drivers/mmc/host/mvsdio.c
@@ -384,7 +384,7 @@ static irqreturn_t mvsd_irq(int irq, void *dev)
                                 u16 val[2] = {0, 0};
                                 val[0] = mvsd_read(MVSD_FIFO);
                                 val[1] = mvsd_read(MVSD_FIFO);
-                                memcpy(p, &val, s);
+                                memcpy(p, ((void *)&val) + 4 - s, s);
                                 s = 0;
                                 intr_status = mvsd_read(MVSD_NOR_INTR_STATUS);
                         }
@@ -423,7 +423,7 @@ static irqreturn_t mvsd_irq(int irq, void *dev)
                 if (s < 4) {
                         if (s && (intr_status & MVSD_NOR_TX_AVAIL)) {
                                 u16 val[2] = {0, 0};
-                                memcpy(&val, p, s);
+                                memcpy(((void *)&val) + 4 - s, p, s);
                                 mvsd_write(MVSD_FIFO, val[0]);
                                 mvsd_write(MVSD_FIFO, val[1]);
                                 s = 0;
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index d7d7109ef47e..e55ac792d68c 100644
--- a/drivers/mmc/host/pxamci.c
+++ b/drivers/mmc/host/pxamci.c
@@ -168,12 +168,12 @@ static void pxamci_setup_data(struct pxamci_host *host, struct mmc_data *data)
 
         if (data->flags & MMC_DATA_READ) {
                 host->dma_dir = DMA_FROM_DEVICE;
-                dcmd = DCMD_INCTRGADDR | DCMD_FLOWTRG;
+                dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC;
                 DRCMR(host->dma_drcmrtx) = 0;
                 DRCMR(host->dma_drcmrrx) = host->dma | DRCMR_MAPVLD;
         } else {
                 host->dma_dir = DMA_TO_DEVICE;
-                dcmd = DCMD_INCSRCADDR | DCMD_FLOWSRC;
+                dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG;
                 DRCMR(host->dma_drcmrrx) = 0;
                 DRCMR(host->dma_drcmrtx) = host->dma | DRCMR_MAPVLD;
         }
diff --git a/drivers/mmc/host/sdhci-of.c b/drivers/mmc/host/sdhci-of.c
index d79fa55c3b89..1e8aa590bb39 100644
--- a/drivers/mmc/host/sdhci-of.c
+++ b/drivers/mmc/host/sdhci-of.c
@@ -158,6 +158,13 @@ static unsigned int esdhc_get_max_clock(struct sdhci_host *host)
         return of_host->clock;
 }
 
+static unsigned int esdhc_get_min_clock(struct sdhci_host *host)
+{
+        struct sdhci_of_host *of_host = sdhci_priv(host);
+
+        return of_host->clock / 256 / 16;
+}
+
 static unsigned int esdhc_get_timeout_clock(struct sdhci_host *host)
 {
         struct sdhci_of_host *of_host = sdhci_priv(host);
@@ -184,6 +191,7 @@ static struct sdhci_of_data sdhci_esdhc = {
                 .set_clock = esdhc_set_clock,
                 .enable_dma = esdhc_enable_dma,
                 .get_max_clock = esdhc_get_max_clock,
+                .get_min_clock = esdhc_get_min_clock,
                 .get_timeout_clock = esdhc_get_timeout_clock,
         },
 };
@@ -226,7 +234,7 @@ static int __devinit sdhci_of_probe(struct of_device *ofdev,
                 return -ENODEV;
 
         host = sdhci_alloc_host(&ofdev->dev, sizeof(*of_host));
-        if (!host)
+        if (IS_ERR(host))
                 return -ENOMEM;
 
         of_host = sdhci_priv(host);
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 6779b4ecab18..fc96f8cb9c0b 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -773,8 +773,14 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data)
         }
 
         if (!(host->flags & SDHCI_REQ_USE_DMA)) {
-                sg_miter_start(&host->sg_miter,
-                        data->sg, data->sg_len, SG_MITER_ATOMIC);
+                int flags;
+
+                flags = SG_MITER_ATOMIC;
+                if (host->data->flags & MMC_DATA_READ)
+                        flags |= SG_MITER_TO_SG;
+                else
+                        flags |= SG_MITER_FROM_SG;
+                sg_miter_start(&host->sg_miter, data->sg, data->sg_len, flags);
                 host->blocks = data->blocks;
         }
 
@@ -1766,7 +1772,10 @@ int sdhci_add_host(struct sdhci_host *host)
          * Set host parameters.
          */
         mmc->ops = &sdhci_ops;
-        mmc->f_min = host->max_clk / 256;
+        if (host->ops->get_min_clock)
+                mmc->f_min = host->ops->get_min_clock(host);
+        else
+                mmc->f_min = host->max_clk / 256;
         mmc->f_max = host->max_clk;
         mmc->caps = MMC_CAP_SDIO_IRQ;
 
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 831ddf7dcb49..c77e9ff30223 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -302,6 +302,7 @@ struct sdhci_ops {
 
         int             (*enable_dma)(struct sdhci_host *host);
         unsigned int    (*get_max_clock)(struct sdhci_host *host);
+        unsigned int    (*get_min_clock)(struct sdhci_host *host);
         unsigned int    (*get_timeout_clock)(struct sdhci_host *host);
 };
 
diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c
index 5011fa73f918..1479da6d3aa6 100644
--- a/drivers/mtd/cmdlinepart.c
+++ b/drivers/mtd/cmdlinepart.c
@@ -194,7 +194,7 @@ static struct mtd_partition * newpart(char *s,
         parts[this_part].name = extra_mem;
         extra_mem += name_len + 1;
 
-        dbg(("partition %d: name <%s>, offset %x, size %x, mask flags %x\n",
+        dbg(("partition %d: name <%s>, offset %llx, size %llx, mask flags %x\n",
              this_part,
              parts[this_part].name,
              parts[this_part].offset,
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 59c46126a5ce..ae5fe91867e1 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -54,7 +54,7 @@
 #define SR_SRWD                 0x80    /* SR write protect */
 
 /* Define max times to check status register before we give up. */
-#define MAX_READY_WAIT_JIFFIES  (10 * HZ)       /* eg. M25P128 specs 6s max sector erase */
+#define MAX_READY_WAIT_JIFFIES  (40 * HZ)       /* M25P16 specs 40s max chip erase */
 #define CMD_SIZE                4
 
 #ifdef CONFIG_M25PXX_USE_FAST_READ
diff --git a/drivers/mtd/inftlcore.c b/drivers/mtd/inftlcore.c
index 73f05227dc8c..d8cf29c01cc4 100644
--- a/drivers/mtd/inftlcore.c
+++ b/drivers/mtd/inftlcore.c
@@ -226,7 +226,7 @@ static u16 INFTL_findfreeblock(struct INFTLrecord *inftl, int desperate)
         if (!desperate && inftl->numfreeEUNs < 2) {
                 DEBUG(MTD_DEBUG_LEVEL1, "INFTL: there are too few free "
                         "EUNs (%d)\n", inftl->numfreeEUNs);
-                return 0xffff;
+                return BLOCK_NIL;
         }
 
         /* Scan for a free block */
@@ -281,7 +281,8 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned
         silly = MAX_LOOPS;
         while (thisEUN < inftl->nb_blocks) {
                 for (block = 0; block < inftl->EraseSize/SECTORSIZE; block ++) {
-                        if ((BlockMap[block] != 0xffff) || BlockDeleted[block])
+                        if ((BlockMap[block] != BLOCK_NIL) ||
+                            BlockDeleted[block])
                                 continue;
 
                         if (inftl_read_oob(mtd, (thisEUN * inftl->EraseSize)
@@ -525,7 +526,7 @@ static inline u16 INFTL_findwriteunit(struct INFTLrecord *inftl, unsigned block)
                         if (!silly--) {
                                 printk(KERN_WARNING "INFTL: infinite loop in "
                                         "Virtual Unit Chain 0x%x\n", thisVUC);
-                                return 0xffff;
+                                return BLOCK_NIL;
                         }
 
                         /* Skip to next block in chain */
@@ -549,7 +550,7 @@ hitused:
                          * waiting to be picked up. We're going to have to fold
                          * a chain to make room.
                          */
-                        thisEUN = INFTL_makefreeblock(inftl, 0xffff);
+                        thisEUN = INFTL_makefreeblock(inftl, BLOCK_NIL);
 
                         /*
                          * Hopefully we free something, lets try again.
@@ -631,7 +632,7 @@ hitused:
 
         printk(KERN_WARNING "INFTL: error folding to make room for Virtual "
                 "Unit Chain 0x%x\n", thisVUC);
-        return 0xffff;
+        return BLOCK_NIL;
 }
 
 /*
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 0b98654d8eed..7a58bd5522fd 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -284,13 +284,6 @@ config MTD_L440GX
 
           BE VERY CAREFUL.
 
-config MTD_SBC8240
-        tristate "Flash device on SBC8240"
-        depends on MTD_JEDECPROBE && 8260
-        help
-          Flash access on the SBC8240 board from Wind River.  See
-          <http://www.windriver.com/products/sbc8240/>
-
 config MTD_TQM8XXL
         tristate "CFI Flash device mapped on TQM8XXL"
         depends on MTD_CFI && TQM8xxL
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index 8bae7f9850c0..5beb0662d724 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -50,7 +50,6 @@ obj-$(CONFIG_MTD_UCLINUX)	+= uclinux.o
 obj-$(CONFIG_MTD_NETtel)        += nettel.o
 obj-$(CONFIG_MTD_SCB2_FLASH)    += scb2_flash.o
 obj-$(CONFIG_MTD_H720X)         += h720x-flash.o
-obj-$(CONFIG_MTD_SBC8240)       += sbc8240.o
 obj-$(CONFIG_MTD_IXP4XX)        += ixp4xx.o
 obj-$(CONFIG_MTD_IXP2000)       += ixp2000.o
 obj-$(CONFIG_MTD_WRSBC8260)     += wr_sbc82xx_flash.o
diff --git a/drivers/mtd/maps/integrator-flash.c b/drivers/mtd/maps/integrator-flash.c
index b08a798ee254..2aac41bde8b3 100644
--- a/drivers/mtd/maps/integrator-flash.c
+++ b/drivers/mtd/maps/integrator-flash.c
@@ -42,10 +42,8 @@
 #include <mach/hardware.h>
 #include <asm/system.h>
 
-#define SUBDEV_NAME_SIZE        (BUS_ID_SIZE + 2)
-
 struct armflash_subdev_info {
-        char                    name[SUBDEV_NAME_SIZE];
+        char                    *name;
         struct mtd_info         *mtd;
         struct map_info         map;
         struct flash_platform_data *plat;
@@ -134,6 +132,8 @@ static void armflash_subdev_remove(struct armflash_subdev_info *subdev)
                 map_destroy(subdev->mtd);
         if (subdev->map.virt)
                 iounmap(subdev->map.virt);
+        kfree(subdev->name);
+        subdev->name = NULL;
         release_mem_region(subdev->map.phys, subdev->map.size);
 }
 
@@ -177,16 +177,22 @@ static int armflash_probe(struct platform_device *dev)
 
                 if (nr == 1)
                         /* No MTD concatenation, just use the default name */
-                        snprintf(subdev->name, SUBDEV_NAME_SIZE, "%s",
-                                 dev_name(&dev->dev));
+                        subdev->name = kstrdup(dev_name(&dev->dev), GFP_KERNEL);
                 else
-                        snprintf(subdev->name, SUBDEV_NAME_SIZE, "%s-%d",
-                                 dev_name(&dev->dev), i);
+                        subdev->name = kasprintf(GFP_KERNEL, "%s-%d",
+                                                 dev_name(&dev->dev), i);
+                if (!subdev->name) {
+                        err = -ENOMEM;
+                        break;
+                }
                 subdev->plat = plat;
 
                 err = armflash_subdev_probe(subdev, res);
-                if (err)
+                if (err) {
+                        kfree(subdev->name);
+                        subdev->name = NULL;
                         break;
+                }
         }
         info->nr_subdev = i;
 
diff --git a/drivers/mtd/maps/sbc8240.c b/drivers/mtd/maps/sbc8240.c
index d5374cdcb163..e69de29bb2d1 100644
--- a/drivers/mtd/maps/sbc8240.c
+++ b/drivers/mtd/maps/sbc8240.c
@@ -1,250 +0,0 @@
-/*
- * Handle mapping of the flash memory access routines on the SBC8240 board.
- *
- * Carolyn Smith, Tektronix, Inc.
- *
- * This code is GPLed
- */
-
-/*
- * The SBC8240 has 2 flash banks.
- * Bank 0 is a 512 KiB AMD AM29F040B; 8 x 64 KiB sectors.
- * It contains the U-Boot code (7 sectors) and the environment (1 sector).
- * Bank 1 is 4 x 1 MiB AMD AM29LV800BT; 15 x 64 KiB sectors, 1 x 32 KiB sector,
- * 2 x 8 KiB sectors, 1 x 16 KiB sectors.
- * Both parts are JEDEC compatible.
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <asm/io.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/cfi.h>
-
-#ifdef CONFIG_MTD_PARTITIONS
-#include <linux/mtd/partitions.h>
-#endif
-
-#define DEBUG
-
-#ifdef  DEBUG
-# define debugk(fmt,args...)    printk(fmt ,##args)
-#else
-# define debugk(fmt,args...)
-#endif
-
-
-#define WINDOW_ADDR0    0xFFF00000              /* 512 KiB */
-#define WINDOW_SIZE0    0x00080000
-#define BUSWIDTH0       1
-
-#define WINDOW_ADDR1    0xFF000000              /* 4 MiB */
-#define WINDOW_SIZE1    0x00400000
-#define BUSWIDTH1       8
-
-#define MSG_PREFIX "sbc8240:"   /* prefix for our printk()'s */
-#define MTDID      "sbc8240-%d" /* for mtdparts= partitioning */
-
-
-static struct map_info sbc8240_map[2] = {
-        {
-                .name           = "sbc8240 Flash Bank #0",
-                .size           = WINDOW_SIZE0,
-                .bankwidth       = BUSWIDTH0,
-        },
-        {
-                .name           = "sbc8240 Flash Bank #1",
-                .size           = WINDOW_SIZE1,
-                .bankwidth       = BUSWIDTH1,
-        }
-};
-
-#define NUM_FLASH_BANKS ARRAY_SIZE(sbc8240_map)
-
-/*
- * The following defines the partition layout of SBC8240 boards.
- *
- * See include/linux/mtd/partitions.h for definition of the
- * mtd_partition structure.
- *
- * The *_max_flash_size is the maximum possible mapped flash size
- * which is not necessarily the actual flash size. It must correspond
- * to the value specified in the mapping definition defined by the
- * "struct map_desc *_io_desc" for the corresponding machine.
- */
-
-#ifdef CONFIG_MTD_PARTITIONS
-
-static struct mtd_partition sbc8240_uboot_partitions [] = {
-        /* Bank 0 */
-        {
-                .name = "U-boot",                       /* U-Boot Firmware      */
-                .offset =       0,
-                .size = 0x00070000,                     /*  7 x 64 KiB sectors  */
-                .mask_flags = MTD_WRITEABLE,            /*  force read-only     */
-        },
-        {
-                .name = "environment",                  /* U-Boot environment   */
-                .offset =       0x00070000,
-                .size = 0x00010000,                     /*  1 x 64 KiB sector   */
-        },
-};
-
-static struct mtd_partition sbc8240_fs_partitions [] = {
-        {
-                .name = "jffs",                         /* JFFS  filesystem     */
-                .offset =       0,
-                .size = 0x003C0000,                     /*  4 * 15 * 64KiB      */
-        },
-        {
-                .name = "tmp32",
-                .offset =       0x003C0000,
-                .size = 0x00020000,                     /*  4 * 32KiB           */
-        },
-        {
-                .name = "tmp8a",
-                .offset =       0x003E0000,
-                .size = 0x00008000,                     /*  4 * 8KiB            */
-        },
-        {
-                .name = "tmp8b",
-                .offset =       0x003E8000,
-                .size = 0x00008000,                     /*  4 * 8KiB            */
-        },
-        {
-                .name = "tmp16",
-                .offset =       0x003F0000,
-                .size = 0x00010000,                     /*  4 * 16KiB           */
-        }
-};
-
-/* trivial struct to describe partition information */
-struct mtd_part_def
-{
-        int nums;
-        unsigned char *type;
-        struct mtd_partition* mtd_part;
-};
-
-static struct mtd_info *sbc8240_mtd[NUM_FLASH_BANKS];
-static struct mtd_part_def sbc8240_part_banks[NUM_FLASH_BANKS];
-
-
-#endif  /* CONFIG_MTD_PARTITIONS */
-
-
-static int __init init_sbc8240_mtd (void)
-{
-        static struct _cjs {
-                u_long addr;
-                u_long size;
-        } pt[NUM_FLASH_BANKS] = {
-                {
-                        .addr = WINDOW_ADDR0,
-                        .size = WINDOW_SIZE0
-                },
-                {
-                        .addr = WINDOW_ADDR1,
-                        .size = WINDOW_SIZE1
-                },
-        };
-
-        int devicesfound = 0;
-        int i,j;
-
-        for (i = 0; i < NUM_FLASH_BANKS; i++) {
-                printk (KERN_NOTICE MSG_PREFIX
-                        "Probing 0x%08lx at 0x%08lx\n", pt[i].size, pt[i].addr);
-
-                sbc8240_map[i].map_priv_1 =
-                        (unsigned long) ioremap (pt[i].addr, pt[i].size);
-                if (!sbc8240_map[i].map_priv_1) {
-                        printk (MSG_PREFIX "failed to ioremap\n");
-                        for (j = 0; j < i; j++) {
-                                iounmap((void *) sbc8240_map[j].map_priv_1);
-                                sbc8240_map[j].map_priv_1 = 0;
-                        }
-                        return -EIO;
-                }
-                simple_map_init(&sbc8240_mtd[i]);
-
-                sbc8240_mtd[i] = do_map_probe("jedec_probe", &sbc8240_map[i]);
-
-                if (sbc8240_mtd[i]) {
-                        sbc8240_mtd[i]->module = THIS_MODULE;
-                        devicesfound++;
-                } else {
-                        if (sbc8240_map[i].map_priv_1) {
-                                iounmap((void *) sbc8240_map[i].map_priv_1);
-                                sbc8240_map[i].map_priv_1 = 0;
-                        }
-                }
-        }
-
-        if (!devicesfound) {
-                printk(KERN_NOTICE MSG_PREFIX
-                       "No suppported flash chips found!\n");
-                return -ENXIO;
-        }
-
-#ifdef CONFIG_MTD_PARTITIONS
-        sbc8240_part_banks[0].mtd_part   = sbc8240_uboot_partitions;
-        sbc8240_part_banks[0].type       = "static image";
-        sbc8240_part_banks[0].nums       = ARRAY_SIZE(sbc8240_uboot_partitions);
-        sbc8240_part_banks[1].mtd_part   = sbc8240_fs_partitions;
-        sbc8240_part_banks[1].type       = "static file system";
-        sbc8240_part_banks[1].nums       = ARRAY_SIZE(sbc8240_fs_partitions);
-
-        for (i = 0; i < NUM_FLASH_BANKS; i++) {
-
-                if (!sbc8240_mtd[i]) continue;
-                if (sbc8240_part_banks[i].nums == 0) {
-                        printk (KERN_NOTICE MSG_PREFIX
-                                "No partition info available, registering whole device\n");
-                        add_mtd_device(sbc8240_mtd[i]);
-                } else {
-                        printk (KERN_NOTICE MSG_PREFIX
-                                "Using %s partition definition\n", sbc8240_part_banks[i].mtd_part->name);
-                        add_mtd_partitions (sbc8240_mtd[i],
-                                            sbc8240_part_banks[i].mtd_part,
-                                            sbc8240_part_banks[i].nums);
-                }
-        }
-#else
-        printk(KERN_NOTICE MSG_PREFIX
-               "Registering %d flash banks at once\n", devicesfound);
-
-        for (i = 0; i < devicesfound; i++) {
-                add_mtd_device(sbc8240_mtd[i]);
-        }
-#endif  /* CONFIG_MTD_PARTITIONS */
-
-        return devicesfound == 0 ? -ENXIO : 0;
-}
-
-static void __exit cleanup_sbc8240_mtd (void)
-{
-        int i;
-
-        for (i = 0; i < NUM_FLASH_BANKS; i++) {
-                if (sbc8240_mtd[i]) {
-                        del_mtd_device (sbc8240_mtd[i]);
-                        map_destroy (sbc8240_mtd[i]);
-                }
-                if (sbc8240_map[i].map_priv_1) {
-                        iounmap ((void *) sbc8240_map[i].map_priv_1);
-                        sbc8240_map[i].map_priv_1 = 0;
-                }
-        }
-}
-
-module_init (init_sbc8240_mtd);
-module_exit (cleanup_sbc8240_mtd);
-
-MODULE_LICENSE ("GPL");
-MODULE_AUTHOR ("Carolyn Smith <carolyn.smith@tektronix.com>");
-MODULE_DESCRIPTION ("MTD map driver for SBC8240 boards");
-
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index c3f62654b6df..7baba40c1ed2 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -144,7 +144,7 @@ static int blktrans_open(struct block_device *bdev, fmode_t mode)
         struct mtd_blktrans_ops *tr = dev->tr;
         int ret = -ENODEV;
 
-        if (!try_module_get(dev->mtd->owner))
+        if (!get_mtd_device(NULL, dev->mtd->index))
                 goto out;
 
         if (!try_module_get(tr->owner))
@@ -158,7 +158,7 @@ static int blktrans_open(struct block_device *bdev, fmode_t mode)
         ret = 0;
         if (tr->open && (ret = tr->open(dev))) {
                 dev->mtd->usecount--;
-                module_put(dev->mtd->owner);
+                put_mtd_device(dev->mtd);
         out_tr:
                 module_put(tr->owner);
         }
@@ -177,7 +177,7 @@ static int blktrans_release(struct gendisk *disk, fmode_t mode)
 
         if (!ret) {
                 dev->mtd->usecount--;
-                module_put(dev->mtd->owner);
+                put_mtd_device(dev->mtd);
                 module_put(tr->owner);
         }
 
diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c
index 208c6faa0358..77db5ce24d92 100644
--- a/drivers/mtd/mtdblock.c
+++ b/drivers/mtd/mtdblock.c
@@ -29,6 +29,8 @@ static struct mtdblk_dev {
         enum { STATE_EMPTY, STATE_CLEAN, STATE_DIRTY } cache_state;
 } *mtdblks[MAX_MTD_DEVICES];
 
+static struct mutex mtdblks_lock;
+
 /*
  * Cache stuff...
  *
@@ -270,15 +272,19 @@ static int mtdblock_open(struct mtd_blktrans_dev *mbd)
 
         DEBUG(MTD_DEBUG_LEVEL1,"mtdblock_open\n");
 
+        mutex_lock(&mtdblks_lock);
         if (mtdblks[dev]) {
                 mtdblks[dev]->count++;
+                mutex_unlock(&mtdblks_lock);
                 return 0;
         }
 
         /* OK, it's not open. Create cache info for it */
         mtdblk = kzalloc(sizeof(struct mtdblk_dev), GFP_KERNEL);
-        if (!mtdblk)
+        if (!mtdblk) {
+                mutex_unlock(&mtdblks_lock);
                 return -ENOMEM;
+        }
 
         mtdblk->count = 1;
         mtdblk->mtd = mtd;
@@ -291,6 +297,7 @@ static int mtdblock_open(struct mtd_blktrans_dev *mbd)
         }
 
         mtdblks[dev] = mtdblk;
+        mutex_unlock(&mtdblks_lock);
 
         DEBUG(MTD_DEBUG_LEVEL1, "ok\n");
 
@@ -304,6 +311,8 @@ static int mtdblock_release(struct mtd_blktrans_dev *mbd)
 
         DEBUG(MTD_DEBUG_LEVEL1, "mtdblock_release\n");
 
+        mutex_lock(&mtdblks_lock);
+
         mutex_lock(&mtdblk->cache_mutex);
         write_cached_data(mtdblk);
         mutex_unlock(&mtdblk->cache_mutex);
@@ -316,6 +325,9 @@ static int mtdblock_release(struct mtd_blktrans_dev *mbd)
                 vfree(mtdblk->cache_data);
                 kfree(mtdblk);
         }
+
+        mutex_unlock(&mtdblks_lock);
+
         DEBUG(MTD_DEBUG_LEVEL1, "ok\n");
 
         return 0;
@@ -376,6 +388,8 @@ static struct mtd_blktrans_ops mtdblock_tr = {
 
 static int __init init_mtdblock(void)
 {
+        mutex_init(&mtdblks_lock);
+
         return register_mtd_blktrans(&mtdblock_tr);
 }
 
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index fac54a3fa3f1..00ebf7af7467 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -65,8 +65,8 @@ static void mtd_release(struct device *dev)
 static int mtd_cls_suspend(struct device *dev, pm_message_t state)
 {
         struct mtd_info *mtd = dev_to_mtd(dev);
-        
-        if (mtd->suspend)
+
+        if (mtd && mtd->suspend)
                 return mtd->suspend(mtd);
         else
                 return 0;
@@ -76,7 +76,7 @@ static int mtd_cls_resume(struct device *dev)
 {
         struct mtd_info *mtd = dev_to_mtd(dev);
         
-        if (mtd->resume)
+        if (mtd && mtd->resume)
                 mtd->resume(mtd);
         return 0;
 }
@@ -298,6 +298,7 @@ int add_mtd_device(struct mtd_info *mtd)
                         mtd->dev.class = &mtd_class;
                         mtd->dev.devt = MTD_DEVT(i);
                         dev_set_name(&mtd->dev, "mtd%d", i);
+                        dev_set_drvdata(&mtd->dev, mtd);
                         if (device_register(&mtd->dev) != 0) {
                                 mtd_table[i] = NULL;
                                 break;
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 2802992b39da..20c828ba9405 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -534,7 +534,7 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
                                                          &num_partitions);
 
         if ((!partitions) || (num_partitions == 0)) {
-                printk(KERN_ERR "atmel_nand: No parititions defined, or unsupported device.\n");
+                printk(KERN_ERR "atmel_nand: No partitions defined, or unsupported device.\n");
                 res = ENXIO;
                 goto err_no_partitions;
         }
diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index 0cd76f89f4b0..ebd07e95b814 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -11,6 +11,8 @@
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
 #include <linux/delay.h>
+#include <linux/jiffies.h>
+#include <linux/sched.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
@@ -541,7 +543,7 @@ static int omap_wait(struct mtd_info *mtd, struct nand_chip *chip)
         struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
                                                         mtd);
         unsigned long timeo = jiffies;
-        int status, state = this->state;
+        int status = NAND_STATUS_FAIL, state = this->state;
 
         if (state == FL_ERASING)
                 timeo += (HZ * 400) / 1000;
@@ -556,8 +558,9 @@ static int omap_wait(struct mtd_info *mtd, struct nand_chip *chip)
 
         while (time_before(jiffies, timeo)) {
                 status = __raw_readb(this->IO_ADDR_R);
-                if (!(status & 0x40))
+                if (status & NAND_STATUS_READY)
                         break;
+                cond_resched();
         }
         return status;
 }
diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c
index e3f8495a94c2..fb86cacd5bdb 100644
--- a/drivers/mtd/nftlcore.c
+++ b/drivers/mtd/nftlcore.c
@@ -208,7 +208,7 @@ static u16 NFTL_findfreeblock(struct NFTLrecord *nftl, int desperate )
         /* Normally, we force a fold to happen before we run out of free blocks completely */
         if (!desperate && nftl->numfreeEUNs < 2) {
                 DEBUG(MTD_DEBUG_LEVEL1, "NFTL_findfreeblock: there are too few free EUNs\n");
-                return 0xffff;
+                return BLOCK_NIL;
         }
 
         /* Scan for a free block */
@@ -230,11 +230,11 @@ static u16 NFTL_findfreeblock(struct NFTLrecord *nftl, int desperate )
                         printk("Argh! No free blocks found! LastFreeEUN = %d, "
                                "FirstEUN = %d\n", nftl->LastFreeEUN,
                                le16_to_cpu(nftl->MediaHdr.FirstPhysicalEUN));
-                        return 0xffff;
+                        return BLOCK_NIL;
                 }
         } while (pot != nftl->LastFreeEUN);
 
-        return 0xffff;
+        return BLOCK_NIL;
 }
 
 static u16 NFTL_foldchain (struct NFTLrecord *nftl, unsigned thisVUC, unsigned pendingblock )
@@ -431,7 +431,7 @@ static u16 NFTL_foldchain (struct NFTLrecord *nftl, unsigned thisVUC, unsigned p
 
         /* add the header so that it is now a valid chain */
         oob.u.a.VirtUnitNum = oob.u.a.SpareVirtUnitNum = cpu_to_le16(thisVUC);
-        oob.u.a.ReplUnitNum = oob.u.a.SpareReplUnitNum = 0xffff;
+        oob.u.a.ReplUnitNum = oob.u.a.SpareReplUnitNum = BLOCK_NIL;
 
         nftl_write_oob(mtd, (nftl->EraseSize * targetEUN) + 8,
                        8, &retlen, (char *)&oob.u);
@@ -515,7 +515,7 @@ static u16 NFTL_makefreeblock( struct NFTLrecord *nftl , unsigned pendingblock)
         if (ChainLength < 2) {
                 printk(KERN_WARNING "No Virtual Unit Chains available for folding. "
                        "Failing request\n");
-                return 0xffff;
+                return BLOCK_NIL;
         }
 
         return NFTL_foldchain (nftl, LongestChain, pendingblock);
@@ -578,7 +578,7 @@ static inline u16 NFTL_findwriteunit(struct NFTLrecord *nftl, unsigned block)
                                 printk(KERN_WARNING
                                        "Infinite loop in Virtual Unit Chain 0x%x\n",
                                        thisVUC);
-                                return 0xffff;
+                                return BLOCK_NIL;
                         }
 
                         /* Skip to next block in chain */
@@ -601,7 +601,7 @@ static inline u16 NFTL_findwriteunit(struct NFTLrecord *nftl, unsigned block)
                         //u16 startEUN = nftl->EUNtable[thisVUC];
 
                         //printk("Write to VirtualUnitChain %d, calling makefreeblock()\n", thisVUC);
-                        writeEUN = NFTL_makefreeblock(nftl, 0xffff);
+                        writeEUN = NFTL_makefreeblock(nftl, BLOCK_NIL);
 
                         if (writeEUN == BLOCK_NIL) {
                                 /* OK, we accept that the above comment is
@@ -673,7 +673,7 @@ static inline u16 NFTL_findwriteunit(struct NFTLrecord *nftl, unsigned block)
 
         printk(KERN_WARNING "Error folding to make room for Virtual Unit Chain 0x%x\n",
                thisVUC);
-        return 0xffff;
+        return BLOCK_NIL;
 }
 
 static int nftl_writeblock(struct mtd_blktrans_dev *mbd, unsigned long block,
diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c
index 38d656b9b2ee..0108ed42e877 100644
--- a/drivers/mtd/onenand/omap2.c
+++ b/drivers/mtd/onenand/omap2.c
@@ -266,7 +266,7 @@ static inline int omap2_onenand_bufferram_offset(struct mtd_info *mtd, int area)
 
         if (ONENAND_CURRENT_BUFFERRAM(this)) {
                 if (area == ONENAND_DATARAM)
-                        return mtd->writesize;
+                        return this->writesize;
                 if (area == ONENAND_SPARERAM)
                         return mtd->oobsize;
         }
@@ -770,6 +770,7 @@ static int __devexit omap2_onenand_remove(struct platform_device *pdev)
         }
         iounmap(c->onenand.base);
         release_mem_region(c->phys_base, ONENAND_IO_SIZE);
+        gpmc_cs_free(c->gpmc_cs);
         kfree(c);
 
         return 0;
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index 286ed594e5a0..e1f7d0a78b9d 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -657,6 +657,11 @@ static int io_init(struct ubi_device *ubi)
         if (ubi->mtd->block_isbad && ubi->mtd->block_markbad)
                 ubi->bad_allowed = 1;
 
+        if (ubi->mtd->type == MTD_NORFLASH) {
+                ubi_assert(ubi->mtd->writesize == 1);
+                ubi->nor_flash = 1;
+        }
+
         ubi->min_io_size = ubi->mtd->writesize;
         ubi->hdrs_min_io_size = ubi->mtd->writesize >> ubi->mtd->subpage_sft;
 
@@ -996,6 +1001,7 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset)
         ubi_msg("number of PEBs reserved for bad PEB handling: %d",
                 ubi->beb_rsvd_pebs);
         ubi_msg("max/mean erase counter: %d/%d", ubi->max_ec, ubi->mean_ec);
+        ubi_msg("image sequence number: %d", ubi->image_seq);
 
         /*
          * The below lock makes sure we do not race with 'ubi_thread()' which
diff --git a/drivers/mtd/ubi/debug.c b/drivers/mtd/ubi/debug.c
index c0ed60e8ade9..54b0186915fb 100644
--- a/drivers/mtd/ubi/debug.c
+++ b/drivers/mtd/ubi/debug.c
@@ -44,6 +44,8 @@ void ubi_dbg_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr)
                be32_to_cpu(ec_hdr->vid_hdr_offset));
         printk(KERN_DEBUG "\tdata_offset    %d\n",
                be32_to_cpu(ec_hdr->data_offset));
+        printk(KERN_DEBUG "\timage_seq      %d\n",
+               be32_to_cpu(ec_hdr->image_seq));
         printk(KERN_DEBUG "\thdr_crc        %#08x\n",
                be32_to_cpu(ec_hdr->hdr_crc));
         printk(KERN_DEBUG "erase counter header hexdump:\n");
diff --git a/drivers/mtd/ubi/debug.h b/drivers/mtd/ubi/debug.h
index 13777e5beac9..a4da7a09b949 100644
--- a/drivers/mtd/ubi/debug.h
+++ b/drivers/mtd/ubi/debug.h
@@ -93,6 +93,12 @@ void ubi_dbg_dump_mkvol_req(const struct ubi_mkvol_req *req);
 #define UBI_IO_DEBUG 0
 #endif
 
+#ifdef CONFIG_MTD_UBI_DEBUG_PARANOID
+int ubi_dbg_check_all_ff(struct ubi_device *ubi, int pnum, int offset, int len);
+#else
+#define ubi_dbg_check_all_ff(ubi, pnum, offset, len) 0
+#endif
+
 #ifdef CONFIG_MTD_UBI_DEBUG_DISABLE_BGT
 #define DBG_DISABLE_BGT 1
 #else
@@ -167,6 +173,7 @@ static inline int ubi_dbg_is_erase_failure(void)
 #define ubi_dbg_is_bitflip()       0
 #define ubi_dbg_is_write_failure() 0
 #define ubi_dbg_is_erase_failure() 0
+#define ubi_dbg_check_all_ff(ubi, pnum, offset, len) 0
 
 #endif /* !CONFIG_MTD_UBI_DEBUG */
 #endif /* !__UBI_DEBUG_H__ */
diff --git a/drivers/mtd/ubi/gluebi.c b/drivers/mtd/ubi/gluebi.c
index 95aaac03f938..b5e478fa2661 100644
--- a/drivers/mtd/ubi/gluebi.c
+++ b/drivers/mtd/ubi/gluebi.c
@@ -332,6 +332,7 @@ static int gluebi_create(struct ubi_device_info *di,
         }
 
         gluebi->vol_id = vi->vol_id;
+        gluebi->ubi_num = vi->ubi_num;
         mtd->type = MTD_UBIVOLUME;
         if (!di->ro_mode)
                 mtd->flags = MTD_WRITEABLE;
diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c
index effaff28bab1..4cb69925d8d9 100644
--- a/drivers/mtd/ubi/io.c
+++ b/drivers/mtd/ubi/io.c
@@ -98,17 +98,12 @@ static int paranoid_check_ec_hdr(const struct ubi_device *ubi, int pnum,
 static int paranoid_check_peb_vid_hdr(const struct ubi_device *ubi, int pnum);
 static int paranoid_check_vid_hdr(const struct ubi_device *ubi, int pnum,
                                   const struct ubi_vid_hdr *vid_hdr);
-static int paranoid_check_all_ff(struct ubi_device *ubi, int pnum, int offset,
-                                 int len);
-static int paranoid_check_empty(struct ubi_device *ubi, int pnum);
 #else
 #define paranoid_check_not_bad(ubi, pnum) 0
 #define paranoid_check_peb_ec_hdr(ubi, pnum)  0
 #define paranoid_check_ec_hdr(ubi, pnum, ec_hdr)  0
 #define paranoid_check_peb_vid_hdr(ubi, pnum) 0
 #define paranoid_check_vid_hdr(ubi, pnum, vid_hdr) 0
-#define paranoid_check_all_ff(ubi, pnum, offset, len) 0
-#define paranoid_check_empty(ubi, pnum) 0
 #endif
 
 /**
@@ -244,7 +239,7 @@ int ubi_io_write(struct ubi_device *ubi, const void *buf, int pnum, int offset,
                 return err > 0 ? -EINVAL : err;
 
         /* The area we are writing to has to contain all 0xFF bytes */
-        err = paranoid_check_all_ff(ubi, pnum, offset, len);
+        err = ubi_dbg_check_all_ff(ubi, pnum, offset, len);
         if (err)
                 return err > 0 ? -EINVAL : err;
 
@@ -271,8 +266,8 @@ int ubi_io_write(struct ubi_device *ubi, const void *buf, int pnum, int offset,
         addr = (loff_t)pnum * ubi->peb_size + offset;
         err = ubi->mtd->write(ubi->mtd, addr, len, &written, buf);
         if (err) {
-                ubi_err("error %d while writing %d bytes to PEB %d:%d, written"
-                        " %zd bytes", err, len, pnum, offset, written);
+                ubi_err("error %d while writing %d bytes to PEB %d:%d, written "
+                        "%zd bytes", err, len, pnum, offset, written);
                 ubi_dbg_dump_stack();
         } else
                 ubi_assert(written == len);
@@ -350,7 +345,7 @@ retry:
                 return -EIO;
         }
 
-        err = paranoid_check_all_ff(ubi, pnum, 0, ubi->peb_size);
+        err = ubi_dbg_check_all_ff(ubi, pnum, 0, ubi->peb_size);
         if (err)
                 return err > 0 ? -EINVAL : err;
 
@@ -459,6 +454,54 @@ out:
 }
 
 /**
+ * nor_erase_prepare - prepare a NOR flash PEB for erasure.
+ * @ubi: UBI device description object
+ * @pnum: physical eraseblock number to prepare
+ *
+ * NOR flash, or at least some of them, have peculiar embedded PEB erasure
+ * algorithm: the PEB is first filled with zeroes, then it is erased. And
+ * filling with zeroes starts from the end of the PEB. This was observed with
+ * Spansion S29GL512N NOR flash.
+ *
+ * This means that in case of a power cut we may end up with intact data at the
+ * beginning of the PEB, and all zeroes at the end of PEB. In other words, the
+ * EC and VID headers are OK, but a large chunk of data at the end of PEB is
+ * zeroed. This makes UBI mistakenly treat this PEB as used and associate it
+ * with an LEB, which leads to subsequent failures (e.g., UBIFS fails).
+ *
+ * This function is called before erasing NOR PEBs and it zeroes out EC and VID
+ * magic numbers in order to invalidate them and prevent the failures. Returns
+ * zero in case of success and a negative error code in case of failure.
+ */
+static int nor_erase_prepare(struct ubi_device *ubi, int pnum)
+{
+        int err;
+        size_t written;
+        loff_t addr;
+        uint32_t data = 0;
+
+        addr = (loff_t)pnum * ubi->peb_size;
+        err = ubi->mtd->write(ubi->mtd, addr, 4, &written, (void *)&data);
+        if (err) {
+                ubi_err("error %d while writing 4 bytes to PEB %d:%d, written "
+                        "%zd bytes", err, pnum, 0, written);
+                ubi_dbg_dump_stack();
+                return err;
+        }
+
+        addr += ubi->vid_hdr_aloffset;
+        err = ubi->mtd->write(ubi->mtd, addr, 4, &written, (void *)&data);
+        if (err) {
+                ubi_err("error %d while writing 4 bytes to PEB %d:%d, written "
+                        "%zd bytes", err, pnum, ubi->vid_hdr_aloffset, written);
+                ubi_dbg_dump_stack();
+                return err;
+        }
+
+        return 0;
+}
+
+/**
  * ubi_io_sync_erase - synchronously erase a physical eraseblock.
  * @ubi: UBI device description object
  * @pnum: physical eraseblock number to erase
@@ -489,6 +532,12 @@ int ubi_io_sync_erase(struct ubi_device *ubi, int pnum, int torture)
                 return -EROFS;
         }
 
+        if (ubi->nor_flash) {
+                err = nor_erase_prepare(ubi, pnum);
+                if (err)
+                        return err;
+        }
+
         if (torture) {
                 ret = torture_peb(ubi, pnum);
                 if (ret < 0)
@@ -672,11 +721,6 @@ int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum,
                 if (read_err != -EBADMSG &&
                     check_pattern(ec_hdr, 0xFF, UBI_EC_HDR_SIZE)) {
                         /* The physical eraseblock is supposedly empty */
-                        err = paranoid_check_all_ff(ubi, pnum, 0,
-                                                    ubi->peb_size);
-                        if (err)
-                                return err > 0 ? UBI_IO_BAD_EC_HDR : err;
-
                         if (verbose)
                                 ubi_warn("no EC header found at PEB %d, "
                                          "only 0xFF bytes", pnum);
@@ -752,6 +796,7 @@ int ubi_io_write_ec_hdr(struct ubi_device *ubi, int pnum,
         ec_hdr->version = UBI_VERSION;
         ec_hdr->vid_hdr_offset = cpu_to_be32(ubi->vid_hdr_offset);
         ec_hdr->data_offset = cpu_to_be32(ubi->leb_start);
+        ec_hdr->image_seq = cpu_to_be32(ubi->image_seq);
         crc = crc32(UBI_CRC32_INIT, ec_hdr, UBI_EC_HDR_SIZE_CRC);
         ec_hdr->hdr_crc = cpu_to_be32(crc);
 
@@ -947,15 +992,6 @@ int ubi_io_read_vid_hdr(struct ubi_device *ubi, int pnum,
                 if (read_err != -EBADMSG &&
                     check_pattern(vid_hdr, 0xFF, UBI_VID_HDR_SIZE)) {
                         /* The physical eraseblock is supposedly free */
-
-                        /*
-                         * The below is just a paranoid check, it has to be
-                         * compiled out if paranoid checks are disabled.
-                         */
-                        err = paranoid_check_empty(ubi, pnum);
-                        if (err)
-                                return err > 0 ? UBI_IO_BAD_VID_HDR : err;
-
                         if (verbose)
                                 ubi_warn("no VID header found at PEB %d, "
                                          "only 0xFF bytes", pnum);
@@ -1229,7 +1265,7 @@ exit:
 }
 
 /**
- * paranoid_check_all_ff - check that a region of flash is empty.
+ * ubi_dbg_check_all_ff - check that a region of flash is empty.
  * @ubi: UBI device description object
  * @pnum: the physical eraseblock number to check
  * @offset: the starting offset within the physical eraseblock to check
@@ -1239,8 +1275,7 @@ exit:
  * @offset of the physical eraseblock @pnum, %1 if not, and a negative error
  * code if an error occurred.
  */
-static int paranoid_check_all_ff(struct ubi_device *ubi, int pnum, int offset,
-                                 int len)
+int ubi_dbg_check_all_ff(struct ubi_device *ubi, int pnum, int offset, int len)
 {
         size_t read;
         int err;
@@ -1276,74 +1311,4 @@ error:
         return err;
 }
 
-/**
- * paranoid_check_empty - whether a PEB is empty.
- * @ubi: UBI device description object
- * @pnum: the physical eraseblock number to check
- *
- * This function makes sure PEB @pnum is empty, which means it contains only
- * %0xFF data bytes. Returns zero if the PEB is empty, %1 if not, and a
- * negative error code in case of failure.
- *
- * Empty PEBs have the EC header, and do not have the VID header. The caller of
- * this function should have already made sure the PEB does not have the VID
- * header. However, this function re-checks that, because it is possible that
- * the header and data has already been written to the PEB.
- *
- * Let's consider a possible scenario. Suppose there are 2 tasks - A and B.
- * Task A is in 'wear_leveling_worker()'. It is reading VID header of PEB X to
- * find which LEB it corresponds to. PEB X is currently unmapped, and has no
- * VID header. Task B is trying to write to PEB X.
- *
- * Task A: in 'ubi_io_read_vid_hdr()': reads the VID header from PEB X. The
- *         read data contain all 0xFF bytes;
- * Task B: writes VID header and some data to PEB X;
- * Task A: assumes PEB X is empty, calls 'paranoid_check_empty()'. And if we
- *         do not re-read the VID header, and do not cancel the checking if it
- *         is there, we fail.
- */
-static int paranoid_check_empty(struct ubi_device *ubi, int pnum)
-{
-        int err, offs = ubi->vid_hdr_aloffset, len = ubi->vid_hdr_alsize;
-        size_t read;
-        uint32_t magic;
-        const struct ubi_vid_hdr *vid_hdr;
-
-        mutex_lock(&ubi->dbg_buf_mutex);
-        err = ubi->mtd->read(ubi->mtd, offs, len, &read, ubi->dbg_peb_buf);
-        if (err && err != -EUCLEAN) {
-                ubi_err("error %d while reading %d bytes from PEB %d:%d, "
-                        "read %zd bytes", err, len, pnum, offs, read);
-                goto error;
-        }
-
-        vid_hdr = ubi->dbg_peb_buf;
-        magic = be32_to_cpu(vid_hdr->magic);
-        if (magic == UBI_VID_HDR_MAGIC)
-                /* The PEB contains VID header, so it is not empty */
-                goto out;
-
-        err = check_pattern(ubi->dbg_peb_buf, 0xFF, len);
-        if (err == 0) {
-                ubi_err("flash region at PEB %d:%d, length %d does not "
-                        "contain all 0xFF bytes", pnum, offs, len);
-                goto fail;
-        }
-
-out:
-        mutex_unlock(&ubi->dbg_buf_mutex);
-        return 0;
-
-fail:
-        ubi_err("paranoid check failed for PEB %d", pnum);
-        ubi_msg("hex dump of the %d-%d region", offs, offs + len);
-        print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1,
-                       ubi->dbg_peb_buf, len, 1);
-        err = 1;
-error:
-        ubi_dbg_dump_stack();
-        mutex_unlock(&ubi->dbg_buf_mutex);
-        return err;
-}
-
 #endif /* CONFIG_MTD_UBI_DEBUG_PARANOID */
diff --git a/drivers/mtd/ubi/scan.c b/drivers/mtd/ubi/scan.c
index c3d653ba5ca0..a423131b6171 100644
--- a/drivers/mtd/ubi/scan.c
+++ b/drivers/mtd/ubi/scan.c
@@ -757,6 +757,8 @@ static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si,
         si->is_empty = 0;
 
         if (!ec_corr) {
+                int image_seq;
+
                 /* Make sure UBI version is OK */
                 if (ech->version != UBI_VERSION) {
                         ubi_err("this UBI version is %d, image version is %d",
@@ -778,6 +780,18 @@ static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si,
                         ubi_dbg_dump_ec_hdr(ech);
                         return -EINVAL;
                 }
+
+                image_seq = be32_to_cpu(ech->image_seq);
+                if (!si->image_seq_set) {
+                        ubi->image_seq = image_seq;
+                        si->image_seq_set = 1;
+                } else if (ubi->image_seq != image_seq) {
+                        ubi_err("bad image sequence number %d in PEB %d, "
+                                "expected %d", image_seq, pnum, ubi->image_seq);
+                        ubi_dbg_dump_ec_hdr(ech);
+                        return -EINVAL;
+                }
+
         }
 
         /* OK, we've done with the EC header, let's look at the VID header */
diff --git a/drivers/mtd/ubi/scan.h b/drivers/mtd/ubi/scan.h
index 61df208e2f20..1017cf12def5 100644
--- a/drivers/mtd/ubi/scan.h
+++ b/drivers/mtd/ubi/scan.h
@@ -102,6 +102,7 @@ struct ubi_scan_volume {
  * @mean_ec: mean erase counter value
  * @ec_sum: a temporary variable used when calculating @mean_ec
  * @ec_count: a temporary variable used when calculating @mean_ec
+ * @image_seq_set: indicates @ubi->image_seq is known
  *
  * This data structure contains the result of scanning and may be used by other
  * UBI sub-systems to build final UBI data structures, further error-recovery
@@ -124,6 +125,7 @@ struct ubi_scan_info {
         int mean_ec;
         uint64_t ec_sum;
         int ec_count;
+        int image_seq_set;
 };
 
 struct ubi_device;
diff --git a/drivers/mtd/ubi/ubi-media.h b/drivers/mtd/ubi/ubi-media.h
index 8419fdccc79c..503ea9b27309 100644
--- a/drivers/mtd/ubi/ubi-media.h
+++ b/drivers/mtd/ubi/ubi-media.h
@@ -129,6 +129,7 @@ enum {
  * @ec: the erase counter
  * @vid_hdr_offset: where the VID header starts
  * @data_offset: where the user data start
+ * @image_seq: image sequence number
  * @padding2: reserved for future, zeroes
  * @hdr_crc: erase counter header CRC checksum
  *
@@ -144,6 +145,14 @@ enum {
  * volume identifier header and user data, relative to the beginning of the
  * physical eraseblock. These values have to be the same for all physical
  * eraseblocks.
+ *
+ * The @image_seq field is used to validate a UBI image that has been prepared
+ * for a UBI device. The @image_seq value can be any value, but it must be the
+ * same on all eraseblocks. UBI will ensure that all new erase counter headers
+ * also contain this value, and will check the value when scanning at start-up.
+ * One way to make use of @image_seq is to increase its value by one every time
+ * an image is flashed over an existing image, then, if the flashing does not
+ * complete, UBI will detect the error when scanning.
  */
 struct ubi_ec_hdr {
         __be32  magic;
@@ -152,7 +161,8 @@ struct ubi_ec_hdr {
         __be64  ec; /* Warning: the current limit is 31-bit anyway! */
         __be32  vid_hdr_offset;
         __be32  data_offset;
-        __u8    padding2[36];
+        __be32  image_seq;
+        __u8    padding2[32];
         __be32  hdr_crc;
 } __attribute__ ((packed));
 
diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h
index 28acd133c997..6a5fe9633783 100644
--- a/drivers/mtd/ubi/ubi.h
+++ b/drivers/mtd/ubi/ubi.h
@@ -301,6 +301,7 @@ struct ubi_wl_entry;
  *                @vol->readers, @vol->writers, @vol->exclusive,
  *                @vol->ref_count, @vol->mapping and @vol->eba_tbl.
  * @ref_count: count of references on the UBI device
+ * @image_seq: image sequence number recorded on EC headers
  *
  * @rsvd_pebs: count of reserved physical eraseblocks
  * @avail_pebs: count of available physical eraseblocks
@@ -372,6 +373,7 @@ struct ubi_wl_entry;
  * @vid_hdr_shift: contains @vid_hdr_offset - @vid_hdr_aloffset
  * @bad_allowed: whether the MTD device admits of bad physical eraseblocks or
  *               not
+ * @nor_flash: non-zero if working on top of NOR flash
  * @mtd: MTD device descriptor
  *
  * @peb_buf1: a buffer of PEB size used for different purposes
@@ -390,6 +392,7 @@ struct ubi_device {
         struct ubi_volume *volumes[UBI_MAX_VOLUMES+UBI_INT_VOL_COUNT];
         spinlock_t volumes_lock;
         int ref_count;
+        int image_seq;
 
         int rsvd_pebs;
         int avail_pebs;
@@ -452,7 +455,8 @@ struct ubi_device {
         int vid_hdr_offset;
         int vid_hdr_aloffset;
         int vid_hdr_shift;
-        int bad_allowed;
+        unsigned int bad_allowed:1;
+        unsigned int nor_flash:1;
         struct mtd_info *mtd;
 
         void *peb_buf1;
diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index 2b2472300610..600c7229d5cf 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -459,6 +459,14 @@ retry:
         dbg_wl("PEB %d EC %d", e->pnum, e->ec);
         prot_queue_add(ubi, e);
         spin_unlock(&ubi->wl_lock);
+
+        err = ubi_dbg_check_all_ff(ubi, e->pnum, ubi->vid_hdr_aloffset,
+                                   ubi->peb_size - ubi->vid_hdr_aloffset);
+        if (err) {
+                ubi_err("new PEB %d does not contain all 0xFF bytes", e->pnum);
+                return err > 0 ? -EINVAL : err;
+        }
+
         return e->pnum;
 }
 
diff --git a/drivers/net/3c515.c b/drivers/net/3c515.c
index 3e00fa8ea65f..4a7c32895be5 100644
--- a/drivers/net/3c515.c
+++ b/drivers/net/3c515.c
@@ -832,7 +832,9 @@ static int corkscrew_open(struct net_device *dev)
                         skb_reserve(skb, 2);    /* Align IP on 16 byte boundaries */
                         vp->rx_ring[i].addr = isa_virt_to_bus(skb->data);
                 }
-                vp->rx_ring[i - 1].next = isa_virt_to_bus(&vp->rx_ring[0]);     /* Wrap the ring. */
+                if (i != 0)
+                        vp->rx_ring[i - 1].next =
+                                isa_virt_to_bus(&vp->rx_ring[0]);       /* Wrap the ring. */
                 outl(isa_virt_to_bus(&vp->rx_ring[0]), ioaddr + UpListPtr);
         }
         if (vp->full_bus_master_tx) {   /* Boomerang bus master Tx. */
diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c
index c34aee91250b..c20416850948 100644
--- a/drivers/net/3c59x.c
+++ b/drivers/net/3c59x.c
@@ -2721,13 +2721,15 @@ dump_tx_ring(struct net_device *dev)
                                    &vp->tx_ring[vp->dirty_tx % TX_RING_SIZE]);
                         issue_and_wait(dev, DownStall);
                         for (i = 0; i < TX_RING_SIZE; i++) {
-                                pr_err("  %d: @%p  length %8.8x status %8.8x\n", i,
-                                           &vp->tx_ring[i],
+                                unsigned int length;
+
 #if DO_ZEROCOPY
-                                           le32_to_cpu(vp->tx_ring[i].frag[0].length),
+                                length = le32_to_cpu(vp->tx_ring[i].frag[0].length);
 #else
-                                           le32_to_cpu(vp->tx_ring[i].length),
+                                length = le32_to_cpu(vp->tx_ring[i].length);
 #endif
+                                pr_err("  %d: @%p  length %8.8x status %8.8x\n",
+                                           i, &vp->tx_ring[i], length,
                                            le32_to_cpu(vp->tx_ring[i].status));
                         }
                         if (!stalled)
diff --git a/drivers/net/8139too.c b/drivers/net/8139too.c
index 8ae72ec14456..0e2ba21d4441 100644
--- a/drivers/net/8139too.c
+++ b/drivers/net/8139too.c
@@ -908,6 +908,7 @@ static const struct net_device_ops rtl8139_netdev_ops = {
         .ndo_open               = rtl8139_open,
         .ndo_stop               = rtl8139_close,
         .ndo_get_stats          = rtl8139_get_stats,
+        .ndo_change_mtu         = eth_change_mtu,
         .ndo_validate_addr      = eth_validate_addr,
         .ndo_set_mac_address    = rtl8139_set_mac_address,
         .ndo_start_xmit         = rtl8139_start_xmit,
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index c155bd3ec9f1..5f6509a5f640 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -1729,6 +1729,13 @@ config KS8842
         help
           This platform driver is for Micrel KSZ8842 chip.
 
+config KS8851
+       tristate "Micrel KS8851 SPI"
+       depends on SPI
+       select MII
+       help
+         SPI driver for Micrel KS8851 SPI attached network chip.
+
 config VIA_RHINE
         tristate "VIA Rhine support"
         depends on NET_PCI && PCI
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 4b58a59f211b..ead8cab3cfe1 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -88,6 +88,7 @@ obj-$(CONFIG_SKGE) += skge.o
 obj-$(CONFIG_SKY2) += sky2.o
 obj-$(CONFIG_SKFP) += skfp/
 obj-$(CONFIG_KS8842)    += ks8842.o
+obj-$(CONFIG_KS8851)    += ks8851.o
 obj-$(CONFIG_VIA_RHINE) += via-rhine.o
 obj-$(CONFIG_VIA_VELOCITY) += via-velocity.o
 obj-$(CONFIG_ADAPTEC_STARFIRE) += starfire.o
diff --git a/drivers/net/a2065.c b/drivers/net/a2065.c
index 85a18175730b..08787f5a22a3 100644
--- a/drivers/net/a2065.c
+++ b/drivers/net/a2065.c
@@ -569,16 +569,8 @@ static int lance_start_xmit (struct sk_buff *skb, struct net_device *dev)
 
 #ifdef DEBUG_DRIVER
         /* dump the packet */
-        {
-                int i;
-
-                for (i = 0; i < 64; i++) {
-                        if ((i % 16) == 0)
-                                printk("\n" KERN_DEBUG);
-                        printk ("%2.2x ", skb->data [i]);
-                }
-                printk("\n");
-        }
+        print_hex_dump(KERN_DEBUG, "skb->data: ", DUMP_PREFIX_NONE,
+                       16, 1, skb->data, 64, true);
 #endif
         entry = lp->tx_new & lp->tx_ring_mod_mask;
         ib->btx_ring [entry].length = (-skblen) | 0xf000;
diff --git a/drivers/net/arcnet/arcnet.c b/drivers/net/arcnet/arcnet.c
index d6d4ab3b430c..7d227cdab9f8 100644
--- a/drivers/net/arcnet/arcnet.c
+++ b/drivers/net/arcnet/arcnet.c
@@ -158,15 +158,12 @@ module_exit(arcnet_exit);
 void arcnet_dump_skb(struct net_device *dev,
                      struct sk_buff *skb, char *desc)
 {
-        int i;
+        char hdr[32];
 
-        printk(KERN_DEBUG "%6s: skb dump (%s) follows:", dev->name, desc);
-        for (i = 0; i < skb->len; i++) {
-                if (i % 16 == 0)
-                        printk("\n" KERN_DEBUG "[%04X] ", i);
-                printk("%02X ", ((u_char *) skb->data)[i]);
-        }
-        printk("\n");
+        /* dump the packet */
+        snprintf(hdr, sizeof(hdr), "%6s:%s skb->data:", dev->name, desc);
+        print_hex_dump(KERN_DEBUG, hdr, DUMP_PREFIX_OFFSET,
+                       16, 1, skb->data, skb->len, true);
 }
 
 EXPORT_SYMBOL(arcnet_dump_skb);
@@ -184,6 +181,7 @@ static void arcnet_dump_packet(struct net_device *dev, int bufnum,
         int i, length;
         unsigned long flags = 0;
         static uint8_t buf[512];
+        char hdr[32];
 
         /* hw.copy_from_card expects IRQ context so take the IRQ lock
            to keep it single threaded */
@@ -197,14 +195,10 @@ static void arcnet_dump_packet(struct net_device *dev, int bufnum,
         /* if the offset[0] byte is nonzero, this is a 256-byte packet */
         length = (buf[2] ? 256 : 512);
 
-        printk(KERN_DEBUG "%6s: packet dump (%s) follows:", dev->name, desc);
-        for (i = 0; i < length; i++) {
-                if (i % 16 == 0)
-                        printk("\n" KERN_DEBUG "[%04X] ", i);
-                printk("%02X ", buf[i]);
-        }
-        printk("\n");
-
+        /* dump the packet */
+        snprintf(hdr, sizeof(hdr), "%6s:%s packet dump:", dev->name, desc);
+        print_hex_dump(KERN_DEBUG, hdr, DUMP_PREFIX_OFFSET,
+                       16, 1, buf, length, true);
 }
 
 #else
diff --git a/drivers/net/arm/Kconfig b/drivers/net/arm/Kconfig
index 2895db13bfa4..c37ee9e6b67b 100644
--- a/drivers/net/arm/Kconfig
+++ b/drivers/net/arm/Kconfig
@@ -63,3 +63,11 @@ config IXP4XX_ETH
         help
           Say Y here if you want to use built-in Ethernet ports
           on IXP4xx processor.
+
+config W90P910_ETH
+        tristate "Nuvoton w90p910 Ethernet support"
+        depends on ARM && ARCH_W90X900
+        select PHYLIB
+        help
+          Say Y here if you want to use built-in Ethernet ports
+          on w90p910 processor.
diff --git a/drivers/net/arm/Makefile b/drivers/net/arm/Makefile
index 811a3ccd14c1..303171f589e6 100644
--- a/drivers/net/arm/Makefile
+++ b/drivers/net/arm/Makefile
@@ -11,3 +11,4 @@ obj-$(CONFIG_ARM_AT91_ETHER)	+= at91_ether.o
 obj-$(CONFIG_ARM_KS8695_ETHER)  += ks8695net.o
 obj-$(CONFIG_EP93XX_ETH)        += ep93xx_eth.o
 obj-$(CONFIG_IXP4XX_ETH)        += ixp4xx_eth.o
+obj-$(CONFIG_W90P910_ETH)       += w90p910_ether.o
diff --git a/drivers/net/arm/at91_ether.c b/drivers/net/arm/at91_ether.c
index 2e7419a61191..5041d10bae9d 100644
--- a/drivers/net/arm/at91_ether.c
+++ b/drivers/net/arm/at91_ether.c
@@ -1228,7 +1228,6 @@ static int at91ether_resume(struct platform_device *pdev)
 #endif
 
 static struct platform_driver at91ether_driver = {
-        .probe          = at91ether_probe,
         .remove         = __devexit_p(at91ether_remove),
         .suspend        = at91ether_suspend,
         .resume         = at91ether_resume,
@@ -1240,7 +1239,7 @@ static struct platform_driver at91ether_driver = {
 
 static int __init at91ether_init(void)
 {
-        return platform_driver_register(&at91ether_driver);
+        return platform_driver_probe(&at91ether_driver, at91ether_probe);
 }
 
 static void __exit at91ether_exit(void)
diff --git a/drivers/net/arm/ixp4xx_eth.c b/drivers/net/arm/ixp4xx_eth.c
index 6f42ad728915..3fe09876e76d 100644
--- a/drivers/net/arm/ixp4xx_eth.c
+++ b/drivers/net/arm/ixp4xx_eth.c
@@ -1142,7 +1142,9 @@ static const struct net_device_ops ixp4xx_netdev_ops = {
         .ndo_start_xmit = eth_xmit,
         .ndo_set_multicast_list = eth_set_mcast_list,
         .ndo_do_ioctl = eth_ioctl,
-
+        .ndo_change_mtu = eth_change_mtu,
+        .ndo_set_mac_address = eth_mac_addr,
+        .ndo_validate_addr = eth_validate_addr,
 };
 
 static int __devinit eth_init_one(struct platform_device *pdev)
diff --git a/drivers/net/arm/w90p910_ether.c b/drivers/net/arm/w90p910_ether.c
new file mode 100644
index 000000000000..616fb7985a34
--- /dev/null
+++ b/drivers/net/arm/w90p910_ether.c
@@ -0,0 +1,1105 @@
+/*
+ * Copyright (c) 2008-2009 Nuvoton technology corporation.
+ *
+ * Wan ZongShun <mcuos.com@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation;version 2 of the License.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/mii.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/ethtool.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+
+#define DRV_MODULE_NAME         "w90p910-emc"
+#define DRV_MODULE_VERSION      "0.1"
+
+/* Ethernet MAC Registers */
+#define REG_CAMCMR              0x00
+#define REG_CAMEN               0x04
+#define REG_CAMM_BASE           0x08
+#define REG_CAML_BASE           0x0c
+#define REG_TXDLSA              0x88
+#define REG_RXDLSA              0x8C
+#define REG_MCMDR               0x90
+#define REG_MIID                0x94
+#define REG_MIIDA               0x98
+#define REG_FFTCR               0x9C
+#define REG_TSDR                0xa0
+#define REG_RSDR                0xa4
+#define REG_DMARFC              0xa8
+#define REG_MIEN                0xac
+#define REG_MISTA               0xb0
+#define REG_CTXDSA              0xcc
+#define REG_CTXBSA              0xd0
+#define REG_CRXDSA              0xd4
+#define REG_CRXBSA              0xd8
+
+/* mac controller bit */
+#define MCMDR_RXON              0x01
+#define MCMDR_ACP               (0x01 << 3)
+#define MCMDR_SPCRC             (0x01 << 5)
+#define MCMDR_TXON              (0x01 << 8)
+#define MCMDR_FDUP              (0x01 << 18)
+#define MCMDR_ENMDC             (0x01 << 19)
+#define MCMDR_OPMOD             (0x01 << 20)
+#define SWR                     (0x01 << 24)
+
+/* cam command regiser */
+#define CAMCMR_AUP              0x01
+#define CAMCMR_AMP              (0x01 << 1)
+#define CAMCMR_ABP              (0x01 << 2)
+#define CAMCMR_CCAM             (0x01 << 3)
+#define CAMCMR_ECMP             (0x01 << 4)
+#define CAM0EN                  0x01
+
+/* mac mii controller bit */
+#define MDCCR                   (0x0a << 20)
+#define PHYAD                   (0x01 << 8)
+#define PHYWR                   (0x01 << 16)
+#define PHYBUSY                 (0x01 << 17)
+#define PHYPRESP                (0x01 << 18)
+#define CAM_ENTRY_SIZE          0x08
+
+/* rx and tx status */
+#define TXDS_TXCP               (0x01 << 19)
+#define RXDS_CRCE               (0x01 << 17)
+#define RXDS_PTLE               (0x01 << 19)
+#define RXDS_RXGD               (0x01 << 20)
+#define RXDS_ALIE               (0x01 << 21)
+#define RXDS_RP                 (0x01 << 22)
+
+/* mac interrupt status*/
+#define MISTA_EXDEF             (0x01 << 19)
+#define MISTA_TXBERR            (0x01 << 24)
+#define MISTA_TDU               (0x01 << 23)
+#define MISTA_RDU               (0x01 << 10)
+#define MISTA_RXBERR            (0x01 << 11)
+
+#define ENSTART                 0x01
+#define ENRXINTR                0x01
+#define ENRXGD                  (0x01 << 4)
+#define ENRXBERR                (0x01 << 11)
+#define ENTXINTR                (0x01 << 16)
+#define ENTXCP                  (0x01 << 18)
+#define ENTXABT                 (0x01 << 21)
+#define ENTXBERR                (0x01 << 24)
+#define ENMDC                   (0x01 << 19)
+#define PHYBUSY                 (0x01 << 17)
+#define MDCCR_VAL               0xa00000
+
+/* rx and tx owner bit */
+#define RX_OWEN_DMA             (0x01 << 31)
+#define RX_OWEN_CPU             (~(0x03 << 30))
+#define TX_OWEN_DMA             (0x01 << 31)
+#define TX_OWEN_CPU             (~(0x01 << 31))
+
+/* tx frame desc controller bit */
+#define MACTXINTEN              0x04
+#define CRCMODE                 0x02
+#define PADDINGMODE             0x01
+
+/* fftcr controller bit */
+#define TXTHD                   (0x03 << 8)
+#define BLENGTH                 (0x01 << 20)
+
+/* global setting for driver */
+#define RX_DESC_SIZE            50
+#define TX_DESC_SIZE            10
+#define MAX_RBUFF_SZ            0x600
+#define MAX_TBUFF_SZ            0x600
+#define TX_TIMEOUT              50
+#define DELAY                   1000
+#define CAM0                    0x0
+
+static int w90p910_mdio_read(struct net_device *dev, int phy_id, int reg);
+
+struct w90p910_rxbd {
+        unsigned int sl;
+        unsigned int buffer;
+        unsigned int reserved;
+        unsigned int next;
+};
+
+struct w90p910_txbd {
+        unsigned int mode;
+        unsigned int buffer;
+        unsigned int sl;
+        unsigned int next;
+};
+
+struct recv_pdesc {
+        struct w90p910_rxbd desclist[RX_DESC_SIZE];
+        char recv_buf[RX_DESC_SIZE][MAX_RBUFF_SZ];
+};
+
+struct tran_pdesc {
+        struct w90p910_txbd desclist[TX_DESC_SIZE];
+        char tran_buf[RX_DESC_SIZE][MAX_TBUFF_SZ];
+};
+
+struct  w90p910_ether {
+        struct recv_pdesc *rdesc;
+        struct recv_pdesc *rdesc_phys;
+        struct tran_pdesc *tdesc;
+        struct tran_pdesc *tdesc_phys;
+        struct net_device_stats stats;
+        struct platform_device *pdev;
+        struct sk_buff *skb;
+        struct clk *clk;
+        struct clk *rmiiclk;
+        struct mii_if_info mii;
+        struct timer_list check_timer;
+        void __iomem *reg;
+        unsigned int rxirq;
+        unsigned int txirq;
+        unsigned int cur_tx;
+        unsigned int cur_rx;
+        unsigned int finish_tx;
+        unsigned int rx_packets;
+        unsigned int rx_bytes;
+        unsigned int start_tx_ptr;
+        unsigned int start_rx_ptr;
+        unsigned int linkflag;
+        spinlock_t lock;
+};
+
+static void update_linkspeed_register(struct net_device *dev,
+                                unsigned int speed, unsigned int duplex)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+        unsigned int val;
+
+        val = __raw_readl(ether->reg + REG_MCMDR);
+
+        if (speed == SPEED_100) {
+                /* 100 full/half duplex */
+                if (duplex == DUPLEX_FULL) {
+                        val |= (MCMDR_OPMOD | MCMDR_FDUP);
+                } else {
+                        val |= MCMDR_OPMOD;
+                        val &= ~MCMDR_FDUP;
+                }
+        } else {
+                /* 10 full/half duplex */
+                if (duplex == DUPLEX_FULL) {
+                        val |= MCMDR_FDUP;
+                        val &= ~MCMDR_OPMOD;
+                } else {
+                        val &= ~(MCMDR_FDUP | MCMDR_OPMOD);
+                }
+        }
+
+        __raw_writel(val, ether->reg + REG_MCMDR);
+}
+
+static void update_linkspeed(struct net_device *dev)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+        struct platform_device *pdev;
+        unsigned int bmsr, bmcr, lpa, speed, duplex;
+
+        pdev = ether->pdev;
+
+        if (!mii_link_ok(&ether->mii)) {
+                ether->linkflag = 0x0;
+                netif_carrier_off(dev);
+                dev_warn(&pdev->dev, "%s: Link down.\n", dev->name);
+                return;
+        }
+
+        if (ether->linkflag == 1)
+                return;
+
+        bmsr = w90p910_mdio_read(dev, ether->mii.phy_id, MII_BMSR);
+        bmcr = w90p910_mdio_read(dev, ether->mii.phy_id, MII_BMCR);
+
+        if (bmcr & BMCR_ANENABLE) {
+                if (!(bmsr & BMSR_ANEGCOMPLETE))
+                        return;
+
+                lpa = w90p910_mdio_read(dev, ether->mii.phy_id, MII_LPA);
+
+                if ((lpa & LPA_100FULL) || (lpa & LPA_100HALF))
+                        speed = SPEED_100;
+                else
+                        speed = SPEED_10;
+
+                if ((lpa & LPA_100FULL) || (lpa & LPA_10FULL))
+                        duplex = DUPLEX_FULL;
+                else
+                        duplex = DUPLEX_HALF;
+
+        } else {
+                speed = (bmcr & BMCR_SPEED100) ? SPEED_100 : SPEED_10;
+                duplex = (bmcr & BMCR_FULLDPLX) ? DUPLEX_FULL : DUPLEX_HALF;
+        }
+
+        update_linkspeed_register(dev, speed, duplex);
+
+        dev_info(&pdev->dev, "%s: Link now %i-%s\n", dev->name, speed,
+                        (duplex == DUPLEX_FULL) ? "FullDuplex" : "HalfDuplex");
+        ether->linkflag = 0x01;
+
+        netif_carrier_on(dev);
+}
+
+static void w90p910_check_link(unsigned long dev_id)
+{
+        struct net_device *dev = (struct net_device *) dev_id;
+        struct w90p910_ether *ether = netdev_priv(dev);
+
+        update_linkspeed(dev);
+        mod_timer(&ether->check_timer, jiffies + msecs_to_jiffies(1000));
+}
+
+static void w90p910_write_cam(struct net_device *dev,
+                                unsigned int x, unsigned char *pval)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+        unsigned int msw, lsw;
+
+        msw = (pval[0] << 24) | (pval[1] << 16) | (pval[2] << 8) | pval[3];
+
+        lsw = (pval[4] << 24) | (pval[5] << 16);
+
+        __raw_writel(lsw, ether->reg + REG_CAML_BASE + x * CAM_ENTRY_SIZE);
+        __raw_writel(msw, ether->reg + REG_CAMM_BASE + x * CAM_ENTRY_SIZE);
+}
+
+static void w90p910_init_desc(struct net_device *dev)
+{
+        struct w90p910_ether *ether;
+        struct w90p910_txbd  *tdesc, *tdesc_phys;
+        struct w90p910_rxbd  *rdesc, *rdesc_phys;
+        unsigned int i, j;
+
+        ether = netdev_priv(dev);
+
+        ether->tdesc = (struct tran_pdesc *)
+                        dma_alloc_coherent(NULL, sizeof(struct tran_pdesc),
+                                (dma_addr_t *) &ether->tdesc_phys, GFP_KERNEL);
+
+        ether->rdesc = (struct recv_pdesc *)
+                        dma_alloc_coherent(NULL, sizeof(struct recv_pdesc),
+                                (dma_addr_t *) &ether->rdesc_phys, GFP_KERNEL);
+
+        for (i = 0; i < TX_DESC_SIZE; i++) {
+                tdesc = &(ether->tdesc->desclist[i]);
+
+                j = ((i + 1) / TX_DESC_SIZE);
+
+                if (j != 0) {
+                        tdesc_phys = &(ether->tdesc_phys->desclist[0]);
+                        ether->start_tx_ptr = (unsigned int)tdesc_phys;
+                        tdesc->next = (unsigned int)ether->start_tx_ptr;
+                } else {
+                        tdesc_phys = &(ether->tdesc_phys->desclist[i+1]);
+                        tdesc->next = (unsigned int)tdesc_phys;
+                }
+
+                tdesc->buffer = (unsigned int)ether->tdesc_phys->tran_buf[i];
+                tdesc->sl = 0;
+                tdesc->mode = 0;
+        }
+
+        for (i = 0; i < RX_DESC_SIZE; i++) {
+                rdesc = &(ether->rdesc->desclist[i]);
+
+                j = ((i + 1) / RX_DESC_SIZE);
+
+                if (j != 0) {
+                        rdesc_phys = &(ether->rdesc_phys->desclist[0]);
+                        ether->start_rx_ptr = (unsigned int)rdesc_phys;
+                        rdesc->next = (unsigned int)ether->start_rx_ptr;
+                } else {
+                        rdesc_phys = &(ether->rdesc_phys->desclist[i+1]);
+                        rdesc->next = (unsigned int)rdesc_phys;
+                }
+
+                rdesc->sl = RX_OWEN_DMA;
+                rdesc->buffer = (unsigned int)ether->rdesc_phys->recv_buf[i];
+          }
+}
+
+static void w90p910_set_fifo_threshold(struct net_device *dev)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+        unsigned int val;
+
+        val = TXTHD | BLENGTH;
+        __raw_writel(val, ether->reg + REG_FFTCR);
+}
+
+static void w90p910_return_default_idle(struct net_device *dev)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+        unsigned int val;
+
+        val = __raw_readl(ether->reg + REG_MCMDR);
+        val |= SWR;
+        __raw_writel(val, ether->reg + REG_MCMDR);
+}
+
+static void w90p910_trigger_rx(struct net_device *dev)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+
+        __raw_writel(ENSTART, ether->reg + REG_RSDR);
+}
+
+static void w90p910_trigger_tx(struct net_device *dev)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+
+        __raw_writel(ENSTART, ether->reg + REG_TSDR);
+}
+
+static void w90p910_enable_mac_interrupt(struct net_device *dev)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+        unsigned int val;
+
+        val = ENTXINTR | ENRXINTR | ENRXGD | ENTXCP;
+        val |= ENTXBERR | ENRXBERR | ENTXABT;
+
+        __raw_writel(val, ether->reg + REG_MIEN);
+}
+
+static void w90p910_get_and_clear_int(struct net_device *dev,
+                                                        unsigned int *val)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+
+        *val = __raw_readl(ether->reg + REG_MISTA);
+        __raw_writel(*val, ether->reg + REG_MISTA);
+}
+
+static void w90p910_set_global_maccmd(struct net_device *dev)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+        unsigned int val;
+
+        val = __raw_readl(ether->reg + REG_MCMDR);
+        val |= MCMDR_SPCRC | MCMDR_ENMDC | MCMDR_ACP | ENMDC;
+        __raw_writel(val, ether->reg + REG_MCMDR);
+}
+
+static void w90p910_enable_cam(struct net_device *dev)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+        unsigned int val;
+
+        w90p910_write_cam(dev, CAM0, dev->dev_addr);
+
+        val = __raw_readl(ether->reg + REG_CAMEN);
+        val |= CAM0EN;
+        __raw_writel(val, ether->reg + REG_CAMEN);
+}
+
+static void w90p910_enable_cam_command(struct net_device *dev)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+        unsigned int val;
+
+        val = CAMCMR_ECMP | CAMCMR_ABP | CAMCMR_AMP;
+        __raw_writel(val, ether->reg + REG_CAMCMR);
+}
+
+static void w90p910_enable_tx(struct net_device *dev, unsigned int enable)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+        unsigned int val;
+
+        val = __raw_readl(ether->reg + REG_MCMDR);
+
+        if (enable)
+                val |= MCMDR_TXON;
+        else
+                val &= ~MCMDR_TXON;
+
+        __raw_writel(val, ether->reg + REG_MCMDR);
+}
+
+static void w90p910_enable_rx(struct net_device *dev, unsigned int enable)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+        unsigned int val;
+
+        val = __raw_readl(ether->reg + REG_MCMDR);
+
+        if (enable)
+                val |= MCMDR_RXON;
+        else
+                val &= ~MCMDR_RXON;
+
+        __raw_writel(val, ether->reg + REG_MCMDR);
+}
+
+static void w90p910_set_curdest(struct net_device *dev)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+
+        __raw_writel(ether->start_rx_ptr, ether->reg + REG_RXDLSA);
+        __raw_writel(ether->start_tx_ptr, ether->reg + REG_TXDLSA);
+}
+
+static void w90p910_reset_mac(struct net_device *dev)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+
+        spin_lock(&ether->lock);
+
+        w90p910_enable_tx(dev, 0);
+        w90p910_enable_rx(dev, 0);
+        w90p910_set_fifo_threshold(dev);
+        w90p910_return_default_idle(dev);
+
+        if (!netif_queue_stopped(dev))
+                netif_stop_queue(dev);
+
+        w90p910_init_desc(dev);
+
+        dev->trans_start = jiffies;
+        ether->cur_tx = 0x0;
+        ether->finish_tx = 0x0;
+        ether->cur_rx = 0x0;
+
+        w90p910_set_curdest(dev);
+        w90p910_enable_cam(dev);
+        w90p910_enable_cam_command(dev);
+        w90p910_enable_mac_interrupt(dev);
+        w90p910_enable_tx(dev, 1);
+        w90p910_enable_rx(dev, 1);
+        w90p910_trigger_tx(dev);
+        w90p910_trigger_rx(dev);
+
+        dev->trans_start = jiffies;
+
+        if (netif_queue_stopped(dev))
+                netif_wake_queue(dev);
+
+        spin_unlock(&ether->lock);
+}
+
+static void w90p910_mdio_write(struct net_device *dev,
+                                        int phy_id, int reg, int data)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+        struct platform_device *pdev;
+        unsigned int val, i;
+
+        pdev = ether->pdev;
+
+        __raw_writel(data, ether->reg + REG_MIID);
+
+        val = (phy_id << 0x08) | reg;
+        val |= PHYBUSY | PHYWR | MDCCR_VAL;
+        __raw_writel(val, ether->reg + REG_MIIDA);
+
+        for (i = 0; i < DELAY; i++) {
+                if ((__raw_readl(ether->reg + REG_MIIDA) & PHYBUSY) == 0)
+                        break;
+        }
+
+        if (i == DELAY)
+                dev_warn(&pdev->dev, "mdio write timed out\n");
+}
+
+static int w90p910_mdio_read(struct net_device *dev, int phy_id, int reg)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+        struct platform_device *pdev;
+        unsigned int val, i, data;
+
+        pdev = ether->pdev;
+
+        val = (phy_id << 0x08) | reg;
+        val |= PHYBUSY | MDCCR_VAL;
+        __raw_writel(val, ether->reg + REG_MIIDA);
+
+        for (i = 0; i < DELAY; i++) {
+                if ((__raw_readl(ether->reg + REG_MIIDA) & PHYBUSY) == 0)
+                        break;
+        }
+
+        if (i == DELAY) {
+                dev_warn(&pdev->dev, "mdio read timed out\n");
+                data = 0xffff;
+        } else {
+                data = __raw_readl(ether->reg + REG_MIID);
+        }
+
+        return data;
+}
+
+static int set_mac_address(struct net_device *dev, void *addr)
+{
+        struct sockaddr *address = addr;
+
+        if (!is_valid_ether_addr(address->sa_data))
+                return -EADDRNOTAVAIL;
+
+        memcpy(dev->dev_addr, address->sa_data, dev->addr_len);
+        w90p910_write_cam(dev, CAM0, dev->dev_addr);
+
+        return 0;
+}
+
+static int w90p910_ether_close(struct net_device *dev)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+
+        dma_free_writecombine(NULL, sizeof(struct w90p910_rxbd),
+                                ether->rdesc, (dma_addr_t)ether->rdesc_phys);
+        dma_free_writecombine(NULL, sizeof(struct w90p910_txbd),
+                                ether->tdesc, (dma_addr_t)ether->tdesc_phys);
+
+        netif_stop_queue(dev);
+
+        del_timer_sync(&ether->check_timer);
+        clk_disable(ether->rmiiclk);
+        clk_disable(ether->clk);
+
+        free_irq(ether->txirq, dev);
+        free_irq(ether->rxirq, dev);
+
+        return 0;
+}
+
+static struct net_device_stats *w90p910_ether_stats(struct net_device *dev)
+{
+        struct w90p910_ether *ether;
+
+        ether = netdev_priv(dev);
+
+        return &ether->stats;
+}
+
+static int w90p910_send_frame(struct net_device *dev,
+                                        unsigned char *data, int length)
+{
+        struct w90p910_ether *ether;
+        struct w90p910_txbd *txbd;
+        struct platform_device *pdev;
+        unsigned char *buffer;
+
+        ether = netdev_priv(dev);
+        pdev = ether->pdev;
+
+        txbd = &ether->tdesc->desclist[ether->cur_tx];
+        buffer = ether->tdesc->tran_buf[ether->cur_tx];
+        if (length > 1514) {
+                dev_err(&pdev->dev, "send data %d bytes, check it\n", length);
+                length = 1514;
+        }
+
+        txbd->sl = length & 0xFFFF;
+
+        memcpy(buffer, data, length);
+
+        txbd->mode = TX_OWEN_DMA | PADDINGMODE | CRCMODE | MACTXINTEN;
+
+        w90p910_enable_tx(dev, 1);
+
+        w90p910_trigger_tx(dev);
+
+        ether->cur_tx = (ether->cur_tx+1) % TX_DESC_SIZE;
+        txbd = &ether->tdesc->desclist[ether->cur_tx];
+
+        dev->trans_start = jiffies;
+
+        if (txbd->mode & TX_OWEN_DMA)
+                netif_stop_queue(dev);
+
+        return 0;
+}
+
+static int w90p910_ether_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+
+        if (!(w90p910_send_frame(dev, skb->data, skb->len))) {
+                ether->skb = skb;
+                dev_kfree_skb_irq(skb);
+                return 0;
+        }
+        return -1;
+}
+
+static irqreturn_t w90p910_tx_interrupt(int irq, void *dev_id)
+{
+        struct w90p910_ether *ether;
+        struct w90p910_txbd  *txbd;
+        struct platform_device *pdev;
+        struct tran_pdesc *tran_pdesc;
+        struct net_device *dev;
+        unsigned int cur_entry, entry, status;
+
+        dev = (struct net_device *)dev_id;
+        ether = netdev_priv(dev);
+        pdev = ether->pdev;
+
+        spin_lock(&ether->lock);
+
+        w90p910_get_and_clear_int(dev, &status);
+
+        cur_entry = __raw_readl(ether->reg + REG_CTXDSA);
+
+        tran_pdesc = ether->tdesc_phys;
+        entry = (unsigned int)(&tran_pdesc->desclist[ether->finish_tx]);
+
+        while (entry != cur_entry) {
+                txbd = &ether->tdesc->desclist[ether->finish_tx];
+
+                ether->finish_tx = (ether->finish_tx + 1) % TX_DESC_SIZE;
+
+                if (txbd->sl & TXDS_TXCP) {
+                        ether->stats.tx_packets++;
+                        ether->stats.tx_bytes += txbd->sl & 0xFFFF;
+                } else {
+                        ether->stats.tx_errors++;
+                }
+
+                txbd->sl = 0x0;
+                txbd->mode = 0x0;
+
+                if (netif_queue_stopped(dev))
+                        netif_wake_queue(dev);
+
+                entry = (unsigned int)(&tran_pdesc->desclist[ether->finish_tx]);
+        }
+
+        if (status & MISTA_EXDEF) {
+                dev_err(&pdev->dev, "emc defer exceed interrupt\n");
+        } else if (status & MISTA_TXBERR) {
+                        dev_err(&pdev->dev, "emc bus error interrupt\n");
+                        w90p910_reset_mac(dev);
+                } else if (status & MISTA_TDU) {
+                                if (netif_queue_stopped(dev))
+                                        netif_wake_queue(dev);
+                        }
+
+        spin_unlock(&ether->lock);
+
+        return IRQ_HANDLED;
+}
+
+static void netdev_rx(struct net_device *dev)
+{
+        struct w90p910_ether *ether;
+        struct w90p910_rxbd *rxbd;
+        struct platform_device *pdev;
+        struct recv_pdesc *rdesc_phys;
+        struct sk_buff *skb;
+        unsigned char *data;
+        unsigned int length, status, val, entry;
+
+        ether = netdev_priv(dev);
+        pdev = ether->pdev;
+        rdesc_phys = ether->rdesc_phys;
+
+        rxbd = &ether->rdesc->desclist[ether->cur_rx];
+
+        do {
+                val = __raw_readl(ether->reg + REG_CRXDSA);
+                entry = (unsigned int)&rdesc_phys->desclist[ether->cur_rx];
+
+                if (val == entry)
+                        break;
+
+                status = rxbd->sl;
+                length = status & 0xFFFF;
+
+                if (status & RXDS_RXGD) {
+                        data = ether->rdesc->recv_buf[ether->cur_rx];
+                        skb = dev_alloc_skb(length+2);
+                        if (!skb) {
+                                dev_err(&pdev->dev, "get skb buffer error\n");
+                                ether->stats.rx_dropped++;
+                                return;
+                        }
+
+                        skb->dev = dev;
+                        skb_reserve(skb, 2);
+                        skb_put(skb, length);
+                        skb_copy_to_linear_data(skb, data, length);
+                        skb->protocol = eth_type_trans(skb, dev);
+                        ether->stats.rx_packets++;
+                        ether->stats.rx_bytes += length;
+                        netif_rx(skb);
+                } else {
+                        ether->stats.rx_errors++;
+
+                        if (status & RXDS_RP) {
+                                dev_err(&pdev->dev, "rx runt err\n");
+                                ether->stats.rx_length_errors++;
+                        } else if (status & RXDS_CRCE) {
+                                        dev_err(&pdev->dev, "rx crc err\n");
+                                        ether->stats.rx_crc_errors++;
+                                }
+
+                        if (status & RXDS_ALIE) {
+                                dev_err(&pdev->dev, "rx aligment err\n");
+                                ether->stats.rx_frame_errors++;
+                        } else if (status & RXDS_PTLE) {
+                                        dev_err(&pdev->dev, "rx longer err\n");
+                                        ether->stats.rx_over_errors++;
+                                }
+                        }
+
+                rxbd->sl = RX_OWEN_DMA;
+                rxbd->reserved = 0x0;
+                ether->cur_rx = (ether->cur_rx+1) % RX_DESC_SIZE;
+                rxbd = &ether->rdesc->desclist[ether->cur_rx];
+
+                dev->last_rx = jiffies;
+        } while (1);
+}
+
+static irqreturn_t w90p910_rx_interrupt(int irq, void *dev_id)
+{
+        struct net_device *dev;
+        struct w90p910_ether  *ether;
+        struct platform_device *pdev;
+        unsigned int status;
+
+        dev = (struct net_device *)dev_id;
+        ether = netdev_priv(dev);
+        pdev = ether->pdev;
+
+        spin_lock(&ether->lock);
+
+        w90p910_get_and_clear_int(dev, &status);
+
+        if (status & MISTA_RDU) {
+                netdev_rx(dev);
+
+                w90p910_trigger_rx(dev);
+
+                spin_unlock(&ether->lock);
+                return IRQ_HANDLED;
+        } else if (status & MISTA_RXBERR) {
+                        dev_err(&pdev->dev, "emc rx bus error\n");
+                        w90p910_reset_mac(dev);
+                }
+
+        netdev_rx(dev);
+        spin_unlock(&ether->lock);
+        return IRQ_HANDLED;
+}
+
+static int w90p910_ether_open(struct net_device *dev)
+{
+        struct w90p910_ether *ether;
+        struct platform_device *pdev;
+
+        ether = netdev_priv(dev);
+        pdev = ether->pdev;
+
+        w90p910_reset_mac(dev);
+        w90p910_set_fifo_threshold(dev);
+        w90p910_set_curdest(dev);
+        w90p910_enable_cam(dev);
+        w90p910_enable_cam_command(dev);
+        w90p910_enable_mac_interrupt(dev);
+        w90p910_set_global_maccmd(dev);
+        w90p910_enable_rx(dev, 1);
+
+        ether->rx_packets = 0x0;
+        ether->rx_bytes = 0x0;
+
+        if (request_irq(ether->txirq, w90p910_tx_interrupt,
+                                                0x0, pdev->name, dev)) {
+                dev_err(&pdev->dev, "register irq tx failed\n");
+                return -EAGAIN;
+        }
+
+        if (request_irq(ether->rxirq, w90p910_rx_interrupt,
+                                                0x0, pdev->name, dev)) {
+                dev_err(&pdev->dev, "register irq rx failed\n");
+                return -EAGAIN;
+        }
+
+        mod_timer(&ether->check_timer, jiffies + msecs_to_jiffies(1000));
+        netif_start_queue(dev);
+        w90p910_trigger_rx(dev);
+
+        dev_info(&pdev->dev, "%s is OPENED\n", dev->name);
+
+        return 0;
+}
+
+static void w90p910_ether_set_multicast_list(struct net_device *dev)
+{
+        struct w90p910_ether *ether;
+        unsigned int rx_mode;
+
+        ether = netdev_priv(dev);
+
+        if (dev->flags & IFF_PROMISC)
+                rx_mode = CAMCMR_AUP | CAMCMR_AMP | CAMCMR_ABP | CAMCMR_ECMP;
+        else if ((dev->flags & IFF_ALLMULTI) || dev->mc_list)
+                        rx_mode = CAMCMR_AMP | CAMCMR_ABP | CAMCMR_ECMP;
+                else
+                                rx_mode = CAMCMR_ECMP | CAMCMR_ABP;
+        __raw_writel(rx_mode, ether->reg + REG_CAMCMR);
+}
+
+static int w90p910_ether_ioctl(struct net_device *dev,
+                                                struct ifreq *ifr, int cmd)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+        struct mii_ioctl_data *data = if_mii(ifr);
+
+        return generic_mii_ioctl(&ether->mii, data, cmd, NULL);
+}
+
+static void w90p910_get_drvinfo(struct net_device *dev,
+                                        struct ethtool_drvinfo *info)
+{
+        strcpy(info->driver, DRV_MODULE_NAME);
+        strcpy(info->version, DRV_MODULE_VERSION);
+}
+
+static int w90p910_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+        return mii_ethtool_gset(&ether->mii, cmd);
+}
+
+static int w90p910_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+        return mii_ethtool_sset(&ether->mii, cmd);
+}
+
+static int w90p910_nway_reset(struct net_device *dev)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+        return mii_nway_restart(&ether->mii);
+}
+
+static u32 w90p910_get_link(struct net_device *dev)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+        return mii_link_ok(&ether->mii);
+}
+
+static const struct ethtool_ops w90p910_ether_ethtool_ops = {
+        .get_settings   = w90p910_get_settings,
+        .set_settings   = w90p910_set_settings,
+        .get_drvinfo    = w90p910_get_drvinfo,
+        .nway_reset     = w90p910_nway_reset,
+        .get_link       = w90p910_get_link,
+};
+
+static const struct net_device_ops w90p910_ether_netdev_ops = {
+        .ndo_open               = w90p910_ether_open,
+        .ndo_stop               = w90p910_ether_close,
+        .ndo_start_xmit         = w90p910_ether_start_xmit,
+        .ndo_get_stats          = w90p910_ether_stats,
+        .ndo_set_multicast_list = w90p910_ether_set_multicast_list,
+        .ndo_set_mac_address    = set_mac_address,
+        .ndo_do_ioctl           = w90p910_ether_ioctl,
+        .ndo_validate_addr      = eth_validate_addr,
+        .ndo_change_mtu         = eth_change_mtu,
+};
+
+static void __init get_mac_address(struct net_device *dev)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+        struct platform_device *pdev;
+        char addr[6];
+
+        pdev = ether->pdev;
+
+        addr[0] = 0x00;
+        addr[1] = 0x02;
+        addr[2] = 0xac;
+        addr[3] = 0x55;
+        addr[4] = 0x88;
+        addr[5] = 0xa8;
+
+        if (is_valid_ether_addr(addr))
+                memcpy(dev->dev_addr, &addr, 0x06);
+        else
+                dev_err(&pdev->dev, "invalid mac address\n");
+}
+
+static int w90p910_ether_setup(struct net_device *dev)
+{
+        struct w90p910_ether *ether = netdev_priv(dev);
+
+        ether_setup(dev);
+        dev->netdev_ops = &w90p910_ether_netdev_ops;
+        dev->ethtool_ops = &w90p910_ether_ethtool_ops;
+
+        dev->tx_queue_len = 16;
+        dev->dma = 0x0;
+        dev->watchdog_timeo = TX_TIMEOUT;
+
+        get_mac_address(dev);
+
+        spin_lock_init(&ether->lock);
+
+        ether->cur_tx = 0x0;
+        ether->cur_rx = 0x0;
+        ether->finish_tx = 0x0;
+        ether->linkflag = 0x0;
+        ether->mii.phy_id = 0x01;
+        ether->mii.phy_id_mask = 0x1f;
+        ether->mii.reg_num_mask = 0x1f;
+        ether->mii.dev = dev;
+        ether->mii.mdio_read = w90p910_mdio_read;
+        ether->mii.mdio_write = w90p910_mdio_write;
+
+        setup_timer(&ether->check_timer, w90p910_check_link,
+                                                (unsigned long)dev);
+
+        return 0;
+}
+
+static int __devinit w90p910_ether_probe(struct platform_device *pdev)
+{
+        struct w90p910_ether *ether;
+        struct net_device *dev;
+        struct resource *res;
+        int error;
+
+        dev = alloc_etherdev(sizeof(struct w90p910_ether));
+        if (!dev)
+                return -ENOMEM;
+
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        if (res == NULL) {
+                dev_err(&pdev->dev, "failed to get I/O memory\n");
+                error = -ENXIO;
+                goto failed_free;
+        }
+
+        res = request_mem_region(res->start, resource_size(res), pdev->name);
+        if (res == NULL) {
+                dev_err(&pdev->dev, "failed to request I/O memory\n");
+                error = -EBUSY;
+                goto failed_free;
+        }
+
+        ether = netdev_priv(dev);
+
+        ether->reg = ioremap(res->start, resource_size(res));
+        if (ether->reg == NULL) {
+                dev_err(&pdev->dev, "failed to remap I/O memory\n");
+                error = -ENXIO;
+                goto failed_free_mem;
+        }
+
+        ether->txirq = platform_get_irq(pdev, 0);
+        if (ether->txirq < 0) {
+                dev_err(&pdev->dev, "failed to get ether tx irq\n");
+                error = -ENXIO;
+                goto failed_free_io;
+        }
+
+        ether->rxirq = platform_get_irq(pdev, 1);
+        if (ether->rxirq < 0) {
+                dev_err(&pdev->dev, "failed to get ether rx irq\n");
+                error = -ENXIO;
+                goto failed_free_txirq;
+        }
+
+        platform_set_drvdata(pdev, dev);
+
+        ether->clk = clk_get(&pdev->dev, NULL);
+        if (IS_ERR(ether->clk)) {
+                dev_err(&pdev->dev, "failed to get ether clock\n");
+                error = PTR_ERR(ether->clk);
+                goto failed_free_rxirq;
+        }
+
+        ether->rmiiclk = clk_get(&pdev->dev, "RMII");
+        if (IS_ERR(ether->rmiiclk)) {
+                dev_err(&pdev->dev, "failed to get ether clock\n");
+                error = PTR_ERR(ether->rmiiclk);
+                goto failed_put_clk;
+        }
+
+        ether->pdev = pdev;
+
+        w90p910_ether_setup(dev);
+
+        error = register_netdev(dev);
+        if (error != 0) {
+                dev_err(&pdev->dev, "Regiter EMC w90p910 FAILED\n");
+                error = -ENODEV;
+                goto failed_put_rmiiclk;
+        }
+
+        return 0;
+failed_put_rmiiclk:
+        clk_put(ether->rmiiclk);
+failed_put_clk:
+        clk_put(ether->clk);
+failed_free_rxirq:
+        free_irq(ether->rxirq, pdev);
+        platform_set_drvdata(pdev, NULL);
+failed_free_txirq:
+        free_irq(ether->txirq, pdev);
+failed_free_io:
+        iounmap(ether->reg);
+failed_free_mem:
+        release_mem_region(res->start, resource_size(res));
+failed_free:
+        free_netdev(dev);
+        return error;
+}
+
+static int __devexit w90p910_ether_remove(struct platform_device *pdev)
+{
+        struct net_device *dev = platform_get_drvdata(pdev);
+        struct w90p910_ether *ether = netdev_priv(dev);
+
+        unregister_netdev(dev);
+        clk_put(ether->rmiiclk);
+        clk_put(ether->clk);
+        del_timer_sync(&ether->check_timer);
+        platform_set_drvdata(pdev, NULL);
+        free_netdev(dev);
+        return 0;
+}
+
+static struct platform_driver w90p910_ether_driver = {
+        .probe          = w90p910_ether_probe,
+        .remove         = __devexit_p(w90p910_ether_remove),
+        .driver         = {
+                .name   = "w90p910-emc",
+                .owner  = THIS_MODULE,
+        },
+};
+
+static int __init w90p910_ether_init(void)
+{
+        return platform_driver_register(&w90p910_ether_driver);
+}
+
+static void __exit w90p910_ether_exit(void)
+{
+        platform_driver_unregister(&w90p910_ether_driver);
+}
+
+module_init(w90p910_ether_init);
+module_exit(w90p910_ether_exit);
+
+MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>");
+MODULE_DESCRIPTION("w90p910 MAC driver!");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:w90p910-emc");
+
diff --git a/drivers/net/at1700.c b/drivers/net/at1700.c
index 18b566ad4fd1..cf30e278f182 100644
--- a/drivers/net/at1700.c
+++ b/drivers/net/at1700.c
@@ -318,7 +318,7 @@ static int __init at1700_probe1(struct net_device *dev, int ioaddr)
                                 pos3 = mca_read_stored_pos( slot, 3 );
                                 pos4 = mca_read_stored_pos( slot, 4 );
 
-                                for (l_i = 0; l_i < 0x09; l_i++)
+                                for (l_i = 0; l_i < 8; l_i++)
                                         if (( pos3 & 0x07) == at1700_ioaddr_pattern[l_i])
                                                 break;
                                 ioaddr = at1700_mca_probe_list[l_i];
diff --git a/drivers/net/atl1c/atl1c.h b/drivers/net/atl1c/atl1c.h
index e1658ef3fcdf..2a1120ad2e74 100644
--- a/drivers/net/atl1c/atl1c.h
+++ b/drivers/net/atl1c/atl1c.h
@@ -188,14 +188,14 @@ struct atl1c_tpd_ext_desc {
 #define RRS_HDS_TYPE_DATA       2
 
 #define RRS_IS_NO_HDS_TYPE(flag) \
-        (((flag) >> (RRS_HDS_TYPE_SHIFT)) & RRS_HDS_TYPE_MASK == 0)
+        ((((flag) >> (RRS_HDS_TYPE_SHIFT)) & RRS_HDS_TYPE_MASK) == 0)
 
 #define RRS_IS_HDS_HEAD(flag) \
-        (((flag) >> (RRS_HDS_TYPE_SHIFT)) & RRS_HDS_TYPE_MASK == \
+        ((((flag) >> (RRS_HDS_TYPE_SHIFT)) & RRS_HDS_TYPE_MASK) == \
                         RRS_HDS_TYPE_HEAD)
 
 #define RRS_IS_HDS_DATA(flag) \
-        (((flag) >> (RRS_HDS_TYPE_SHIFT)) & RRS_HDS_TYPE_MASK == \
+        ((((flag) >> (RRS_HDS_TYPE_SHIFT)) & RRS_HDS_TYPE_MASK) == \
                         RRS_HDS_TYPE_DATA)
 
 /* rrs word 3 bit 0:31 */
@@ -245,7 +245,7 @@ struct atl1c_tpd_ext_desc {
 #define RRS_PACKET_TYPE_802_3   1
 #define RRS_PACKET_TYPE_ETH     0
 #define RRS_PACKET_IS_ETH(word) \
-        (((word) >> RRS_PACKET_TYPE_SHIFT) & RRS_PACKET_TYPE_MASK == \
+        ((((word) >> RRS_PACKET_TYPE_SHIFT) & RRS_PACKET_TYPE_MASK) == \
                         RRS_PACKET_TYPE_ETH)
 #define RRS_RXD_IS_VALID(word) \
         ((((word) >> RRS_RXD_UPDATED_SHIFT) & RRS_RXD_UPDATED_MASK) == 1)
diff --git a/drivers/net/atl1c/atl1c_ethtool.c b/drivers/net/atl1c/atl1c_ethtool.c
index e4afbd628c23..607007d75b6f 100644
--- a/drivers/net/atl1c/atl1c_ethtool.c
+++ b/drivers/net/atl1c/atl1c_ethtool.c
@@ -281,6 +281,8 @@ static int atl1c_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
         if (wol->wolopts & WAKE_PHY)
                 adapter->wol |= AT_WUFC_LNKC;
 
+        device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
+
         return 0;
 }
 
diff --git a/drivers/net/atl1c/atl1c_main.c b/drivers/net/atl1c/atl1c_main.c
index cd547a205fb9..a383122679de 100644
--- a/drivers/net/atl1c/atl1c_main.c
+++ b/drivers/net/atl1c/atl1c_main.c
@@ -1689,7 +1689,7 @@ static void atl1c_clean_rx_irq(struct atl1c_adapter *adapter, u8 que,
                 if (likely(RRS_RXD_IS_VALID(rrs->word3))) {
                         rfd_num = (rrs->word0 >> RRS_RX_RFD_CNT_SHIFT) &
                                 RRS_RX_RFD_CNT_MASK;
-                        if (unlikely(rfd_num) != 1)
+                        if (unlikely(rfd_num != 1))
                                 /* TODO support mul rfd*/
                                 if (netif_msg_rx_err(adapter))
                                         dev_warn(&pdev->dev,
diff --git a/drivers/net/atl1e/atl1e_ethtool.c b/drivers/net/atl1e/atl1e_ethtool.c
index 619c6583e1aa..4003955d7a96 100644
--- a/drivers/net/atl1e/atl1e_ethtool.c
+++ b/drivers/net/atl1e/atl1e_ethtool.c
@@ -365,6 +365,8 @@ static int atl1e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
         if (wol->wolopts & WAKE_PHY)
                 adapter->wol |= AT_WUFC_LNKC;
 
+        device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
+
         return 0;
 }
 
diff --git a/drivers/net/atlx/atl2.c b/drivers/net/atlx/atl2.c
index c734b1983ec1..204db961029e 100644
--- a/drivers/net/atlx/atl2.c
+++ b/drivers/net/atlx/atl2.c
@@ -2071,7 +2071,7 @@ static int atl2_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
         if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE))
                 return -EOPNOTSUPP;
 
-        if (wol->wolopts & (WAKE_MCAST|WAKE_BCAST|WAKE_MCAST))
+        if (wol->wolopts & (WAKE_UCAST | WAKE_BCAST | WAKE_MCAST))
                 return -EOPNOTSUPP;
 
         /* these settings will always override what we currently have */
diff --git a/drivers/net/benet/be.h b/drivers/net/benet/be.h
index f703758f0a6e..5b4bf3d2cdc2 100644
--- a/drivers/net/benet/be.h
+++ b/drivers/net/benet/be.h
@@ -73,7 +73,7 @@ static inline char *nic_name(struct pci_dev *pdev)
 #define RX_FRAGS_REFILL_WM      (RX_Q_LEN - MAX_RX_POST)
 
 #define BE_MAX_LRO_DESCRIPTORS  16
-#define BE_MAX_FRAGS_PER_FRAME  16
+#define BE_MAX_FRAGS_PER_FRAME  (min((u32) 16, (u32) MAX_SKB_FRAGS))
 
 struct be_dma_mem {
         void *va;
diff --git a/drivers/net/benet/be_ethtool.c b/drivers/net/benet/be_ethtool.c
index 9592f22e4c8c..cccc5419ad72 100644
--- a/drivers/net/benet/be_ethtool.c
+++ b/drivers/net/benet/be_ethtool.c
@@ -162,8 +162,8 @@ be_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *coalesce)
                 return -EINVAL;
 
         adapter->max_rx_coal = coalesce->rx_max_coalesced_frames;
-        if (adapter->max_rx_coal > MAX_SKB_FRAGS)
-                adapter->max_rx_coal = MAX_SKB_FRAGS - 1;
+        if (adapter->max_rx_coal > BE_MAX_FRAGS_PER_FRAME)
+                adapter->max_rx_coal = BE_MAX_FRAGS_PER_FRAME;
 
         /* if AIC is being turned on now, start with an EQD of 0 */
         if (rx_eq->enable_aic == 0 &&
diff --git a/drivers/net/benet/be_hw.h b/drivers/net/benet/be_hw.h
index b02e805c1db3..29c33c709c6d 100644
--- a/drivers/net/benet/be_hw.h
+++ b/drivers/net/benet/be_hw.h
@@ -55,6 +55,10 @@
 #define MEMBAR_CTRL_INT_CTRL_PFUNC_MASK         0x7     /* bits 26 - 28 */
 #define MEMBAR_CTRL_INT_CTRL_PFUNC_SHIFT        26
 
+/********* ISR0 Register offset **********/
+#define CEV_ISR0_OFFSET                         0xC18
+#define CEV_ISR_SIZE                            4
+
 /********* Event Q door bell *************/
 #define DB_EQ_OFFSET                    DB_CQ_OFFSET
 #define DB_EQ_RING_ID_MASK              0x1FF   /* bits 0 - 8 */
diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c
index 66c10c87f517..dea3155688bb 100644
--- a/drivers/net/benet/be_main.c
+++ b/drivers/net/benet/be_main.c
@@ -666,8 +666,8 @@ static void skb_fill_rx_data(struct be_adapter *adapter,
 {
         struct be_queue_info *rxq = &adapter->rx_obj.q;
         struct be_rx_page_info *page_info;
-        u16 rxq_idx, i, num_rcvd;
-        u32 pktsize, hdr_len, curr_frag_len;
+        u16 rxq_idx, i, num_rcvd, j;
+        u32 pktsize, hdr_len, curr_frag_len, size;
         u8 *start;
 
         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
@@ -708,23 +708,34 @@ static void skb_fill_rx_data(struct be_adapter *adapter,
         }
 
         /* More frags present for this completion */
-        pktsize -= curr_frag_len; /* account for above copied frag */
-        for (i = 1; i < num_rcvd; i++) {
+        size = pktsize;
+        for (i = 1, j = 0; i < num_rcvd; i++) {
+                size -= curr_frag_len;
                 index_inc(&rxq_idx, rxq->len);
                 page_info = get_rx_page_info(adapter, rxq_idx);
 
-                curr_frag_len = min(pktsize, rx_frag_size);
+                curr_frag_len = min(size, rx_frag_size);
+
+                /* Coalesce all frags from the same physical page in one slot */
+                if (page_info->page_offset == 0) {
+                        /* Fresh page */
+                        j++;
+                        skb_shinfo(skb)->frags[j].page = page_info->page;
+                        skb_shinfo(skb)->frags[j].page_offset =
+                                                        page_info->page_offset;
+                        skb_shinfo(skb)->frags[j].size = 0;
+                        skb_shinfo(skb)->nr_frags++;
+                } else {
+                        put_page(page_info->page);
+                }
 
-                skb_shinfo(skb)->frags[i].page = page_info->page;
-                skb_shinfo(skb)->frags[i].page_offset = page_info->page_offset;
-                skb_shinfo(skb)->frags[i].size = curr_frag_len;
+                skb_shinfo(skb)->frags[j].size += curr_frag_len;
                 skb->len += curr_frag_len;
                 skb->data_len += curr_frag_len;
-                skb_shinfo(skb)->nr_frags++;
-                pktsize -= curr_frag_len;
 
                 memset(page_info, 0, sizeof(*page_info));
         }
+        BUG_ON(j > MAX_SKB_FRAGS);
 
 done:
         be_rx_stats_update(adapter, pktsize, num_rcvd);
@@ -786,7 +797,7 @@ static void be_rx_compl_process_lro(struct be_adapter *adapter,
         struct skb_frag_struct rx_frags[BE_MAX_FRAGS_PER_FRAME];
         struct be_queue_info *rxq = &adapter->rx_obj.q;
         u32 num_rcvd, pkt_size, remaining, vlanf, curr_frag_len;
-        u16 i, rxq_idx = 0, vid;
+        u16 i, rxq_idx = 0, vid, j;
 
         num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
         pkt_size = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
@@ -794,20 +805,28 @@ static void be_rx_compl_process_lro(struct be_adapter *adapter,
         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
 
         remaining = pkt_size;
-        for (i = 0; i < num_rcvd; i++) {
+        for (i = 0, j = -1; i < num_rcvd; i++) {
                 page_info = get_rx_page_info(adapter, rxq_idx);
 
                 curr_frag_len = min(remaining, rx_frag_size);
 
-                rx_frags[i].page = page_info->page;
-                rx_frags[i].page_offset = page_info->page_offset;
-                rx_frags[i].size = curr_frag_len;
-                remaining -= curr_frag_len;
+                /* Coalesce all frags from the same physical page in one slot */
+                if (i == 0 || page_info->page_offset == 0) {
+                        /* First frag or Fresh page */
+                        j++;
+                        rx_frags[j].page = page_info->page;
+                        rx_frags[j].page_offset = page_info->page_offset;
+                        rx_frags[j].size = 0;
+                } else {
+                        put_page(page_info->page);
+                }
+                rx_frags[j].size += curr_frag_len;
 
+                remaining -= curr_frag_len;
                 index_inc(&rxq_idx, rxq->len);
-
                 memset(page_info, 0, sizeof(*page_info));
         }
+        BUG_ON(j > MAX_SKB_FRAGS);
 
         if (likely(!vlanf)) {
                 lro_receive_frags(&adapter->rx_obj.lro_mgr, rx_frags, pkt_size,
@@ -1255,15 +1274,17 @@ static irqreturn_t be_intx(int irq, void *dev)
 {
         struct be_adapter *adapter = dev;
         struct be_ctrl_info *ctrl = &adapter->ctrl;
-        int rx, tx;
+        int isr;
 
-        tx = event_handle(ctrl, &adapter->tx_eq);
-        rx = event_handle(ctrl, &adapter->rx_eq);
+        isr = ioread32(ctrl->csr + CEV_ISR0_OFFSET +
+                      ctrl->pci_func * CEV_ISR_SIZE);
+        if (!isr)
+                return IRQ_NONE;
 
-        if (rx || tx)
-                return IRQ_HANDLED;
-        else
-                return IRQ_NONE;
+        event_handle(ctrl, &adapter->tx_eq);
+        event_handle(ctrl, &adapter->rx_eq);
+
+        return IRQ_HANDLED;
 }
 
 static irqreturn_t be_msix_rx(int irq, void *dev)
diff --git a/drivers/net/bmac.c b/drivers/net/bmac.c
index 9578a3dfac01..206144f2470f 100644
--- a/drivers/net/bmac.c
+++ b/drivers/net/bmac.c
@@ -428,10 +428,11 @@ bmac_init_phy(struct net_device *dev)
         printk(KERN_DEBUG "phy registers:");
         for (addr = 0; addr < 32; ++addr) {
                 if ((addr & 7) == 0)
-                        printk("\n" KERN_DEBUG);
-                printk(" %.4x", bmac_mif_read(dev, addr));
+                        printk(KERN_DEBUG);
+                printk(KERN_CONT " %.4x", bmac_mif_read(dev, addr));
         }
-        printk("\n");
+        printk(KERN_CONT "\n");
+
         if (bp->is_bmac_plus) {
                 unsigned int capable, ctrl;
 
diff --git a/drivers/net/bnx2x.h b/drivers/net/bnx2x.h
index 8678457849f9..85a737c5c23f 100644
--- a/drivers/net/bnx2x.h
+++ b/drivers/net/bnx2x.h
@@ -902,6 +902,8 @@ struct bnx2x {
         u16                     rx_quick_cons_trip;
         u16                     rx_ticks_int;
         u16                     rx_ticks;
+/* Maximal coalescing timeout in us */
+#define BNX2X_MAX_COALESCE_TOUT         (0xf0*12)
 
         u32                     lin_cnt;
 
diff --git a/drivers/net/bnx2x_link.c b/drivers/net/bnx2x_link.c
index ed648acef7cf..2ee581a2cdec 100644
--- a/drivers/net/bnx2x_link.c
+++ b/drivers/net/bnx2x_link.c
@@ -4212,13 +4212,14 @@ static void bnx2x_turn_off_sf(struct bnx2x *bp, u8 port)
 u8 bnx2x_get_ext_phy_fw_version(struct link_params *params, u8 driver_loaded,
                               u8 *version, u16 len)
 {
-        struct bnx2x *bp = params->bp;
+        struct bnx2x *bp;
         u32 ext_phy_type = 0;
         u32 spirom_ver = 0;
         u8 status = 0 ;
 
         if (version == NULL || params == NULL)
                 return -EINVAL;
+        bp = params->bp;
 
         spirom_ver = REG_RD(bp, params->shmem_base +
                    offsetof(struct shmem_region,
diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c
index fbf1352e9c1c..c36a5f33739f 100644
--- a/drivers/net/bnx2x_main.c
+++ b/drivers/net/bnx2x_main.c
@@ -484,8 +484,9 @@ static void bnx2x_fw_dump(struct bnx2x *bp)
 
         mark = REG_RD(bp, MCP_REG_MCPR_SCRATCH + 0xf104);
         mark = ((mark + 0x3) & ~0x3);
-        printk(KERN_ERR PFX "begin fw dump (mark 0x%x)\n" KERN_ERR, mark);
+        printk(KERN_ERR PFX "begin fw dump (mark 0x%x)\n", mark);
 
+        printk(KERN_ERR PFX);
         for (offset = mark - 0x08000000; offset <= 0xF900; offset += 0x8*4) {
                 for (word = 0; word < 8; word++)
                         data[word] = htonl(REG_RD(bp, MCP_REG_MCPR_SCRATCH +
@@ -500,7 +501,7 @@ static void bnx2x_fw_dump(struct bnx2x *bp)
                 data[8] = 0x0;
                 printk(KERN_CONT "%s", (char *)data);
         }
-        printk("\n" KERN_ERR PFX "end of fw dump\n");
+        printk(KERN_ERR PFX "end of fw dump\n");
 }
 
 static void bnx2x_panic_dump(struct bnx2x *bp)
@@ -4434,7 +4435,7 @@ static void bnx2x_update_coalesce(struct bnx2x *bp)
                 REG_WR16(bp, BAR_USTRORM_INTMEM +
                          USTORM_SB_HC_DISABLE_OFFSET(port, sb_id,
                                                      U_SB_ETH_RX_CQ_INDEX),
-                         bp->rx_ticks ? 0 : 1);
+                         (bp->rx_ticks/12) ? 0 : 1);
 
                 /* HC_INDEX_C_ETH_TX_CQ_CONS */
                 REG_WR8(bp, BAR_CSTRORM_INTMEM +
@@ -4444,7 +4445,7 @@ static void bnx2x_update_coalesce(struct bnx2x *bp)
                 REG_WR16(bp, BAR_CSTRORM_INTMEM +
                          CSTORM_SB_HC_DISABLE_OFFSET(port, sb_id,
                                                      C_SB_ETH_TX_CQ_INDEX),
-                         bp->tx_ticks ? 0 : 1);
+                         (bp->tx_ticks/12) ? 0 : 1);
         }
 }
 
@@ -7354,7 +7355,7 @@ static void bnx2x_reset_task(struct work_struct *work)
 #ifdef BNX2X_STOP_ON_ERROR
         BNX2X_ERR("reset task called but STOP_ON_ERROR defined"
                   " so reset not done to allow debug dump,\n"
-         KERN_ERR " you will need to reboot when done\n");
+                  " you will need to reboot when done\n");
         return;
 #endif
 
@@ -8637,6 +8638,14 @@ static int bnx2x_nway_reset(struct net_device *dev)
         return 0;
 }
 
+static u32
+bnx2x_get_link(struct net_device *dev)
+{
+        struct bnx2x *bp = netdev_priv(dev);
+
+        return bp->link_vars.link_up;
+}
+
 static int bnx2x_get_eeprom_len(struct net_device *dev)
 {
         struct bnx2x *bp = netdev_priv(dev);
@@ -9061,12 +9070,12 @@ static int bnx2x_set_coalesce(struct net_device *dev,
         struct bnx2x *bp = netdev_priv(dev);
 
         bp->rx_ticks = (u16) coal->rx_coalesce_usecs;
-        if (bp->rx_ticks > 3000)
-                bp->rx_ticks = 3000;
+        if (bp->rx_ticks > BNX2X_MAX_COALESCE_TOUT)
+                bp->rx_ticks = BNX2X_MAX_COALESCE_TOUT;
 
         bp->tx_ticks = (u16) coal->tx_coalesce_usecs;
-        if (bp->tx_ticks > 0x3000)
-                bp->tx_ticks = 0x3000;
+        if (bp->tx_ticks > BNX2X_MAX_COALESCE_TOUT)
+                bp->tx_ticks = BNX2X_MAX_COALESCE_TOUT;
 
         if (netif_running(dev))
                 bnx2x_update_coalesce(bp);
@@ -10034,7 +10043,7 @@ static struct ethtool_ops bnx2x_ethtool_ops = {
         .get_msglevel           = bnx2x_get_msglevel,
         .set_msglevel           = bnx2x_set_msglevel,
         .nway_reset             = bnx2x_nway_reset,
-        .get_link               = ethtool_op_get_link,
+        .get_link               = bnx2x_get_link,
         .get_eeprom_len         = bnx2x_get_eeprom_len,
         .get_eeprom             = bnx2x_get_eeprom,
         .set_eeprom             = bnx2x_set_eeprom,
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index d927f71af8a3..aa1be1feceed 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1459,8 +1459,16 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
          * ether type (eg ARPHRD_ETHER and ARPHRD_INFINIBAND) share the same bond
          */
         if (bond->slave_cnt == 0) {
-                if (slave_dev->type != ARPHRD_ETHER)
-                        bond_setup_by_slave(bond_dev, slave_dev);
+                if (bond_dev->type != slave_dev->type) {
+                        dev_close(bond_dev);
+                        pr_debug("%s: change device type from %d to %d\n",
+                                bond_dev->name, bond_dev->type, slave_dev->type);
+                        if (slave_dev->type != ARPHRD_ETHER)
+                                bond_setup_by_slave(bond_dev, slave_dev);
+                        else
+                                ether_setup(bond_dev);
+                        dev_open(bond_dev);
+                }
         } else if (bond_dev->type != slave_dev->type) {
                 pr_err(DRV_NAME ": %s ether type (%d) is different "
                         "from other slaves (%d), can not enslave it.\n",
diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
index 574daddc21bf..9e4283aff828 100644
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -346,7 +346,7 @@ void can_restart(unsigned long data)
         skb = dev_alloc_skb(sizeof(struct can_frame));
         if (skb == NULL) {
                 err = -ENOMEM;
-                goto out;
+                goto restart;
         }
         skb->dev = dev;
         skb->protocol = htons(ETH_P_CAN);
@@ -361,13 +361,13 @@ void can_restart(unsigned long data)
         stats->rx_packets++;
         stats->rx_bytes += cf->can_dlc;
 
+restart:
         dev_dbg(dev->dev.parent, "restarted\n");
         priv->can_stats.restarts++;
 
         /* Now restart the device */
         err = priv->do_set_mode(dev, CAN_MODE_START);
 
-out:
         netif_carrier_on(dev);
         if (err)
                 dev_err(dev->dev.parent, "Error %d during restart", err);
@@ -473,6 +473,10 @@ int open_candev(struct net_device *dev)
                 return -EINVAL;
         }
 
+        /* Switch carrier on if device was stopped while in bus-off state */
+        if (!netif_carrier_ok(dev))
+                netif_carrier_on(dev);
+
         setup_timer(&priv->restart_timer, can_restart, (unsigned long)dev);
 
         return 0;
diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c
index 571f133a8fec..08ebee79d8a6 100644
--- a/drivers/net/can/sja1000/sja1000.c
+++ b/drivers/net/can/sja1000/sja1000.c
@@ -63,7 +63,6 @@
 #include <linux/can.h>
 #include <linux/can/dev.h>
 #include <linux/can/error.h>
-#include <linux/can/dev.h>
 
 #include "sja1000.h"
 
diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c
index 4d1515f45ba2..4869d77cbe91 100644
--- a/drivers/net/cnic.c
+++ b/drivers/net/cnic.c
@@ -227,7 +227,7 @@ static int cnic_send_nlmsg(struct cnic_local *cp, u32 type,
         }
 
         rcu_read_lock();
-        ulp_ops = rcu_dereference(cp->ulp_ops[CNIC_ULP_ISCSI]);
+        ulp_ops = rcu_dereference(cnic_ulp_tbl[CNIC_ULP_ISCSI]);
         if (ulp_ops)
                 ulp_ops->iscsi_nl_send_msg(cp->dev, msg_type, buf, len);
         rcu_read_unlock();
@@ -319,6 +319,20 @@ static int cnic_abort_prep(struct cnic_sock *csk)
         return 0;
 }
 
+static void cnic_uio_stop(void)
+{
+        struct cnic_dev *dev;
+
+        read_lock(&cnic_dev_lock);
+        list_for_each_entry(dev, &cnic_dev_list, list) {
+                struct cnic_local *cp = dev->cnic_priv;
+
+                if (cp->cnic_uinfo)
+                        cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
+        }
+        read_unlock(&cnic_dev_lock);
+}
+
 int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops)
 {
         struct cnic_dev *dev;
@@ -390,6 +404,9 @@ int cnic_unregister_driver(int ulp_type)
         }
         read_unlock(&cnic_dev_lock);
 
+        if (ulp_type == CNIC_ULP_ISCSI)
+                cnic_uio_stop();
+
         rcu_assign_pointer(cnic_ulp_tbl[ulp_type], NULL);
 
         mutex_unlock(&cnic_lock);
@@ -632,7 +649,6 @@ static void cnic_free_resc(struct cnic_dev *dev)
         int i = 0;
 
         if (cp->cnic_uinfo) {
-                cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
                 while (cp->uio_dev != -1 && i < 15) {
                         msleep(100);
                         i++;
@@ -1057,6 +1073,9 @@ static void cnic_ulp_stop(struct cnic_dev *dev)
         struct cnic_local *cp = dev->cnic_priv;
         int if_type;
 
+        if (cp->cnic_uinfo)
+                cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
+
         rcu_read_lock();
         for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) {
                 struct cnic_ulp_ops *ulp_ops;
diff --git a/drivers/net/cpmac.c b/drivers/net/cpmac.c
index 58afafbd3b9c..fd5e32cbcb87 100644
--- a/drivers/net/cpmac.c
+++ b/drivers/net/cpmac.c
@@ -1097,7 +1097,7 @@ static const struct net_device_ops cpmac_netdev_ops = {
         .ndo_start_xmit         = cpmac_start_xmit,
         .ndo_tx_timeout         = cpmac_tx_timeout,
         .ndo_set_multicast_list = cpmac_set_multicast_list,
-        .ndo_so_ioctl           = cpmac_ioctl,
+        .ndo_do_ioctl           = cpmac_ioctl,
         .ndo_set_config         = cpmac_config,
         .ndo_change_mtu         = eth_change_mtu,
         .ndo_validate_addr      = eth_validate_addr,
diff --git a/drivers/net/cs89x0.c b/drivers/net/cs89x0.c
index 3eee666a9cd2..55445f980f9c 100644
--- a/drivers/net/cs89x0.c
+++ b/drivers/net/cs89x0.c
@@ -1524,6 +1524,7 @@ static void net_timeout(struct net_device *dev)
 static int net_send_packet(struct sk_buff *skb, struct net_device *dev)
 {
         struct net_local *lp = netdev_priv(dev);
+        unsigned long flags;
 
         if (net_debug > 3) {
                 printk("%s: sent %d byte packet of type %x\n",
@@ -1535,7 +1536,7 @@ static int net_send_packet(struct sk_buff *skb, struct net_device *dev)
                   ask the chip to start transmitting before the
                   whole packet has been completely uploaded. */
 
-        spin_lock_irq(&lp->lock);
+        spin_lock_irqsave(&lp->lock, flags);
         netif_stop_queue(dev);
 
         /* initiate a transmit sequence */
@@ -1549,13 +1550,13 @@ static int net_send_packet(struct sk_buff *skb, struct net_device *dev)
                  * we're waiting for TxOk, so return 1 and requeue this packet.
                  */
 
-                spin_unlock_irq(&lp->lock);
+                spin_unlock_irqrestore(&lp->lock, flags);
                 if (net_debug) printk("cs89x0: Tx buffer not free!\n");
                 return NETDEV_TX_BUSY;
         }
         /* Write the contents of the packet */
         writewords(dev->base_addr, TX_FRAME_PORT,skb->data,(skb->len+1) >>1);
-        spin_unlock_irq(&lp->lock);
+        spin_unlock_irqrestore(&lp->lock, flags);
         lp->stats.tx_bytes += skb->len;
         dev->trans_start = jiffies;
         dev_kfree_skb (skb);
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index 538dda4422dc..fb5df5c6203e 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -642,8 +642,7 @@ static int setup_sge_qsets(struct adapter *adap)
                 struct port_info *pi = netdev_priv(dev);
 
                 pi->qs = &adap->sge.qs[pi->first_qset];
-                for (j = pi->first_qset; j < pi->first_qset + pi->nqsets;
-                     ++j, ++qset_idx) {
+                for (j = 0; j < pi->nqsets; ++j, ++qset_idx) {
                         set_qset_lro(dev, qset_idx, pi->rx_offload & T3_LRO);
                         err = t3_sge_alloc_qset(adap, qset_idx, 1,
                                 (adap->flags & USING_MSIX) ? qset_idx + 1 :
diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
index 2df8fb0af701..12fd446f9895 100644
--- a/drivers/net/davinci_emac.c
+++ b/drivers/net/davinci_emac.c
@@ -1820,11 +1820,19 @@ static int emac_dev_setmac_addr(struct net_device *ndev, void *addr)
         struct device *emac_dev = &priv->ndev->dev;
         struct sockaddr *sa = addr;
 
+        if (!is_valid_ether_addr(sa->sa_data))
+                return -EINVAL;
+
         /* Store mac addr in priv and rx channel and set it in EMAC hw */
         memcpy(priv->mac_addr, sa->sa_data, ndev->addr_len);
-        memcpy(rxch->mac_addr, sa->sa_data, ndev->addr_len);
         memcpy(ndev->dev_addr, sa->sa_data, ndev->addr_len);
-        emac_setmac(priv, EMAC_DEF_RX_CH, rxch->mac_addr);
+
+        /* If the interface is down - rxch is NULL. */
+        /* MAC address is configured only after the interface is enabled. */
+        if (netif_running(ndev)) {
+                memcpy(rxch->mac_addr, sa->sa_data, ndev->addr_len);
+                emac_setmac(priv, EMAC_DEF_RX_CH, rxch->mac_addr);
+        }
 
         if (netif_msg_drv(priv))
                 dev_notice(emac_dev, "DaVinci EMAC: emac_dev_setmac_addr %pM\n",
diff --git a/drivers/net/dl2k.c b/drivers/net/dl2k.c
index 895d72143ee0..4b6a219fecea 100644
--- a/drivers/net/dl2k.c
+++ b/drivers/net/dl2k.c
@@ -268,8 +268,9 @@ rio_probe1 (struct pci_dev *pdev, const struct pci_device_id *ent)
                 printk(KERN_INFO "tx_coalesce:\t%d packets\n",
                                 tx_coalesce);
         if (np->coalesce)
-                printk(KERN_INFO "rx_coalesce:\t%d packets\n"
-                       KERN_INFO "rx_timeout: \t%d ns\n",
+                printk(KERN_INFO
+                       "rx_coalesce:\t%d packets\n"
+                       "rx_timeout: \t%d ns\n",
                                 np->rx_coalesce, np->rx_timeout*640);
         if (np->vlan)
                 printk(KERN_INFO "vlan(id):\t%d\n", np->vlan);
@@ -1522,9 +1523,9 @@ mii_get_media (struct net_device *dev)
                         printk (KERN_INFO "Operating at 10 Mbps, ");
                 }
                 if (bmcr & MII_BMCR_DUPLEX_MODE) {
-                        printk ("Full duplex\n");
+                        printk (KERN_CONT "Full duplex\n");
                 } else {
-                        printk ("Half duplex\n");
+                        printk (KERN_CONT "Half duplex\n");
                 }
         }
         if (np->tx_flow)
@@ -1614,9 +1615,9 @@ mii_set_media (struct net_device *dev)
                 }
                 if (np->full_duplex) {
                         bmcr |= MII_BMCR_DUPLEX_MODE;
-                        printk ("Full duplex\n");
+                        printk (KERN_CONT "Full duplex\n");
                 } else {
-                        printk ("Half duplex\n");
+                        printk (KERN_CONT "Half duplex\n");
                 }
 #if 0
                 /* Set 1000BaseT Master/Slave setting */
@@ -1669,9 +1670,9 @@ mii_get_media_pcs (struct net_device *dev)
                 __u16 bmcr = mii_read (dev, phy_addr, PCS_BMCR);
                 printk (KERN_INFO "Operating at 1000 Mbps, ");
                 if (bmcr & MII_BMCR_DUPLEX_MODE) {
-                        printk ("Full duplex\n");
+                        printk (KERN_CONT "Full duplex\n");
                 } else {
-                        printk ("Half duplex\n");
+                        printk (KERN_CONT "Half duplex\n");
                 }
         }
         if (np->tx_flow)
diff --git a/drivers/net/e100.c b/drivers/net/e100.c
index efa680f4b8dd..41b648a67fec 100644
--- a/drivers/net/e100.c
+++ b/drivers/net/e100.c
@@ -1897,6 +1897,9 @@ static int e100_rx_indicate(struct nic *nic, struct rx *rx,
 
                         if (ioread8(&nic->csr->scb.status) & rus_no_res)
                                 nic->ru_running = RU_SUSPENDED;
+                pci_dma_sync_single_for_device(nic->pdev, rx->dma_addr,
+                                               sizeof(struct rfd),
+                                               PCI_DMA_BIDIRECTIONAL);
                 return -ENODATA;
         }
 
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 5e3356f8eb5a..5b8cbdb4b520 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -2185,12 +2185,16 @@ static void e1000_clean_rx_ring(struct e1000_adapter *adapter,
         /* Free all the Rx ring sk_buffs */
         for (i = 0; i < rx_ring->count; i++) {
                 buffer_info = &rx_ring->buffer_info[i];
-                if (buffer_info->skb) {
+                if (buffer_info->dma) {
                         pci_unmap_single(pdev,
                                          buffer_info->dma,
                                          buffer_info->length,
                                          PCI_DMA_FROMDEVICE);
+                }
+
+                buffer_info->dma = 0;
 
+                if (buffer_info->skb) {
                         dev_kfree_skb(buffer_info->skb);
                         buffer_info->skb = NULL;
                 }
@@ -4033,6 +4037,7 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
                                  buffer_info->dma,
                                  buffer_info->length,
                                  PCI_DMA_FROMDEVICE);
+                buffer_info->dma = 0;
 
                 length = le16_to_cpu(rx_desc->length);
                 /* !EOP means multiple descriptors were used to store a single
@@ -4222,6 +4227,7 @@ map_skb:
                         pci_unmap_single(pdev, buffer_info->dma,
                                          adapter->rx_buffer_len,
                                          PCI_DMA_FROMDEVICE);
+                        buffer_info->dma = 0;
 
                         break; /* while !buffer_info->skb */
                 }
@@ -4817,6 +4823,9 @@ static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev,
 
         netif_device_detach(netdev);
 
+        if (state == pci_channel_io_perm_failure)
+                return PCI_ERS_RESULT_DISCONNECT;
+
         if (netif_running(netdev))
                 e1000_down(adapter);
         pci_disable_device(pdev);
diff --git a/drivers/net/e1000e/defines.h b/drivers/net/e1000e/defines.h
index 8890c97e1120..c0f185beb8bc 100644
--- a/drivers/net/e1000e/defines.h
+++ b/drivers/net/e1000e/defines.h
@@ -238,6 +238,7 @@
 #define E1000_STATUS_SPEED_100  0x00000040      /* Speed 100Mb/s */
 #define E1000_STATUS_SPEED_1000 0x00000080      /* Speed 1000Mb/s */
 #define E1000_STATUS_LAN_INIT_DONE 0x00000200   /* Lan Init Completion by NVM */
+#define E1000_STATUS_PHYRA      0x00000400      /* PHY Reset Asserted */
 #define E1000_STATUS_GIO_MASTER_ENABLE 0x00080000 /* Status of Master requests. */
 
 /* Constants used to interpret the masked PCI-X bus speed. */
@@ -575,6 +576,8 @@
 #define PHY_1000T_STATUS 0x0A /* 1000Base-T Status Reg */
 #define PHY_EXT_STATUS   0x0F /* Extended Status Reg */
 
+#define PHY_CONTROL_LB   0x4000 /* PHY Loopback bit */
+
 /* NVM Control */
 #define E1000_EECD_SK        0x00000001 /* NVM Clock */
 #define E1000_EECD_CS        0x00000002 /* NVM Chip Select */
diff --git a/drivers/net/e1000e/hw.h b/drivers/net/e1000e/hw.h
index 163c1c0cfee7..fd44d9f90769 100644
--- a/drivers/net/e1000e/hw.h
+++ b/drivers/net/e1000e/hw.h
@@ -215,6 +215,7 @@ enum e1e_registers {
         E1000_SWSM      = 0x05B50, /* SW Semaphore */
         E1000_FWSM      = 0x05B54, /* FW Semaphore */
         E1000_SWSM2     = 0x05B58, /* Driver-only SW semaphore */
+        E1000_CRC_OFFSET = 0x05F50, /* CRC Offset register */
         E1000_HICR      = 0x08F00, /* Host Interface Control */
 };
 
@@ -302,6 +303,9 @@ enum e1e_registers {
 #define E1000_KMRNCTRLSTA_REN           0x00200000
 #define E1000_KMRNCTRLSTA_DIAG_OFFSET   0x3    /* Kumeran Diagnostic */
 #define E1000_KMRNCTRLSTA_DIAG_NELPBK   0x1000 /* Nearend Loopback mode */
+#define E1000_KMRNCTRLSTA_K1_CONFIG     0x7
+#define E1000_KMRNCTRLSTA_K1_ENABLE     0x140E
+#define E1000_KMRNCTRLSTA_K1_DISABLE    0x1400
 
 #define IFE_PHY_EXTENDED_STATUS_CONTROL 0x10
 #define IFE_PHY_SPECIAL_CONTROL         0x11 /* 100BaseTx PHY Special Control */
diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c
index 9e23f50fb9cd..d56c7473144a 100644
--- a/drivers/net/e1000e/ich8lan.c
+++ b/drivers/net/e1000e/ich8lan.c
@@ -338,6 +338,7 @@ static s32 e1000_init_nvm_params_ich8lan(struct e1000_hw *hw)
 {
         struct e1000_nvm_info *nvm = &hw->nvm;
         struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
+        union ich8_hws_flash_status hsfsts;
         u32 gfpreg;
         u32 sector_base_addr;
         u32 sector_end_addr;
@@ -374,6 +375,20 @@ static s32 e1000_init_nvm_params_ich8lan(struct e1000_hw *hw)
         /* Adjust to word count */
         nvm->flash_bank_size /= sizeof(u16);
 
+        /*
+         * Make sure the flash bank size does not overwrite the 4k
+         * sector ranges. We may have 64k allotted to us but we only care
+         * about the first 2 4k sectors. Therefore, if we have anything less
+         * than 64k set in the HSFSTS register, we will reduce the bank size
+         * down to 4k and let the rest remain unused. If berasesz == 3, then
+         * we are working in 64k mode. Otherwise we are not.
+         */
+        if (nvm->flash_bank_size > E1000_ICH8_SHADOW_RAM_WORDS) {
+                hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
+                if (hsfsts.hsf_status.berasesz != 3)
+                        nvm->flash_bank_size = E1000_ICH8_SHADOW_RAM_WORDS;
+        }
+
         nvm->word_size = E1000_ICH8_SHADOW_RAM_WORDS;
 
         /* Clear shadow ram */
@@ -446,6 +461,95 @@ static s32 e1000_init_mac_params_ich8lan(struct e1000_adapter *adapter)
         return 0;
 }
 
+/**
+ *  e1000_check_for_copper_link_ich8lan - Check for link (Copper)
+ *  @hw: pointer to the HW structure
+ *
+ *  Checks to see of the link status of the hardware has changed.  If a
+ *  change in link status has been detected, then we read the PHY registers
+ *  to get the current speed/duplex if link exists.
+ **/
+static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
+{
+        struct e1000_mac_info *mac = &hw->mac;
+        s32 ret_val;
+        bool link;
+
+        /*
+         * We only want to go out to the PHY registers to see if Auto-Neg
+         * has completed and/or if our link status has changed.  The
+         * get_link_status flag is set upon receiving a Link Status
+         * Change or Rx Sequence Error interrupt.
+         */
+        if (!mac->get_link_status) {
+                ret_val = 0;
+                goto out;
+        }
+
+        if (hw->mac.type == e1000_pchlan) {
+                ret_val = e1000e_write_kmrn_reg(hw,
+                                                   E1000_KMRNCTRLSTA_K1_CONFIG,
+                                                   E1000_KMRNCTRLSTA_K1_ENABLE);
+                if (ret_val)
+                        goto out;
+        }
+
+        /*
+         * First we want to see if the MII Status Register reports
+         * link.  If so, then we want to get the current speed/duplex
+         * of the PHY.
+         */
+        ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
+        if (ret_val)
+                goto out;
+
+        if (!link)
+                goto out; /* No link detected */
+
+        mac->get_link_status = false;
+
+        if (hw->phy.type == e1000_phy_82578) {
+                ret_val = e1000_link_stall_workaround_hv(hw);
+                if (ret_val)
+                        goto out;
+        }
+
+        /*
+         * Check if there was DownShift, must be checked
+         * immediately after link-up
+         */
+        e1000e_check_downshift(hw);
+
+        /*
+         * If we are forcing speed/duplex, then we simply return since
+         * we have already determined whether we have link or not.
+         */
+        if (!mac->autoneg) {
+                ret_val = -E1000_ERR_CONFIG;
+                goto out;
+        }
+
+        /*
+         * Auto-Neg is enabled.  Auto Speed Detection takes care
+         * of MAC speed/duplex configuration.  So we only need to
+         * configure Collision Distance in the MAC.
+         */
+        e1000e_config_collision_dist(hw);
+
+        /*
+         * Configure Flow Control now that Auto-Neg has completed.
+         * First, we need to restore the desired flow control
+         * settings because we may have had to re-autoneg with a
+         * different link partner.
+         */
+        ret_val = e1000e_config_fc_after_link_up(hw);
+        if (ret_val)
+                hw_dbg(hw, "Error configuring flow control\n");
+
+out:
+        return ret_val;
+}
+
 static s32 e1000_get_variants_ich8lan(struct e1000_adapter *adapter)
 {
         struct e1000_hw *hw = &adapter->hw;
@@ -694,6 +798,38 @@ static s32 e1000_hv_phy_workarounds_ich8lan(struct e1000_hw *hw)
 }
 
 /**
+ *  e1000_lan_init_done_ich8lan - Check for PHY config completion
+ *  @hw: pointer to the HW structure
+ *
+ *  Check the appropriate indication the MAC has finished configuring the
+ *  PHY after a software reset.
+ **/
+static void e1000_lan_init_done_ich8lan(struct e1000_hw *hw)
+{
+        u32 data, loop = E1000_ICH8_LAN_INIT_TIMEOUT;
+
+        /* Wait for basic configuration completes before proceeding */
+        do {
+                data = er32(STATUS);
+                data &= E1000_STATUS_LAN_INIT_DONE;
+                udelay(100);
+        } while ((!data) && --loop);
+
+        /*
+         * If basic configuration is incomplete before the above loop
+         * count reaches 0, loading the configuration from NVM will
+         * leave the PHY in a bad state possibly resulting in no link.
+         */
+        if (loop == 0)
+                hw_dbg(hw, "LAN_INIT_DONE not set, increase timeout\n");
+
+        /* Clear the Init Done bit for the next init event */
+        data = er32(STATUS);
+        data &= ~E1000_STATUS_LAN_INIT_DONE;
+        ew32(STATUS, data);
+}
+
+/**
  *  e1000_phy_hw_reset_ich8lan - Performs a PHY reset
  *  @hw: pointer to the HW structure
  *
@@ -707,13 +843,15 @@ static s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw)
         u32 i;
         u32 data, cnf_size, cnf_base_addr, sw_cfg_mask;
         s32 ret_val;
-        u16 loop = E1000_ICH8_LAN_INIT_TIMEOUT;
         u16 word_addr, reg_data, reg_addr, phy_page = 0;
 
         ret_val = e1000e_phy_hw_reset_generic(hw);
         if (ret_val)
                 return ret_val;
 
+        /* Allow time for h/w to get to a quiescent state after reset */
+        mdelay(10);
+
         if (hw->mac.type == e1000_pchlan) {
                 ret_val = e1000_hv_phy_workarounds_ich8lan(hw);
                 if (ret_val)
@@ -741,26 +879,8 @@ static s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw)
                 if (!(data & sw_cfg_mask))
                         return 0;
 
-                /* Wait for basic configuration completes before proceeding*/
-                do {
-                        data = er32(STATUS);
-                        data &= E1000_STATUS_LAN_INIT_DONE;
-                        udelay(100);
-                } while ((!data) && --loop);
-
-                /*
-                 * If basic configuration is incomplete before the above loop
-                 * count reaches 0, loading the configuration from NVM will
-                 * leave the PHY in a bad state possibly resulting in no link.
-                 */
-                if (loop == 0) {
-                        hw_dbg(hw, "LAN_INIT_DONE not set, increase timeout\n");
-                }
-
-                /* Clear the Init Done bit for the next init event */
-                data = er32(STATUS);
-                data &= ~E1000_STATUS_LAN_INIT_DONE;
-                ew32(STATUS, data);
+                /* Wait for basic configuration completes before proceeding */
+                e1000_lan_init_done_ich8lan(hw);
 
                 /*
                  * Make sure HW does not configure LCD from PHY
@@ -961,12 +1081,14 @@ static s32 e1000_set_d0_lplu_state_ich8lan(struct e1000_hw *hw, bool active)
                 phy_ctrl |= E1000_PHY_CTRL_D0A_LPLU;
                 ew32(PHY_CTRL, phy_ctrl);
 
+                if (phy->type != e1000_phy_igp_3)
+                        return 0;
+
                 /*
                  * Call gig speed drop workaround on LPLU before accessing
                  * any PHY registers
                  */
-                if ((hw->mac.type == e1000_ich8lan) &&
-                    (hw->phy.type == e1000_phy_igp_3))
+                if (hw->mac.type == e1000_ich8lan)
                         e1000e_gig_downshift_workaround_ich8lan(hw);
 
                 /* When LPLU is enabled, we should disable SmartSpeed */
@@ -979,6 +1101,9 @@ static s32 e1000_set_d0_lplu_state_ich8lan(struct e1000_hw *hw, bool active)
                 phy_ctrl &= ~E1000_PHY_CTRL_D0A_LPLU;
                 ew32(PHY_CTRL, phy_ctrl);
 
+                if (phy->type != e1000_phy_igp_3)
+                        return 0;
+
                 /*
                  * LPLU and SmartSpeed are mutually exclusive.  LPLU is used
                  * during Dx states where the power conservation is most
@@ -1038,6 +1163,10 @@ static s32 e1000_set_d3_lplu_state_ich8lan(struct e1000_hw *hw, bool active)
         if (!active) {
                 phy_ctrl &= ~E1000_PHY_CTRL_NOND0A_LPLU;
                 ew32(PHY_CTRL, phy_ctrl);
+
+                if (phy->type != e1000_phy_igp_3)
+                        return 0;
+
                 /*
                  * LPLU and SmartSpeed are mutually exclusive.  LPLU is used
                  * during Dx states where the power conservation is most
@@ -1073,12 +1202,14 @@ static s32 e1000_set_d3_lplu_state_ich8lan(struct e1000_hw *hw, bool active)
                 phy_ctrl |= E1000_PHY_CTRL_NOND0A_LPLU;
                 ew32(PHY_CTRL, phy_ctrl);
 
+                if (phy->type != e1000_phy_igp_3)
+                        return 0;
+
                 /*
                  * Call gig speed drop workaround on LPLU before accessing
                  * any PHY registers
                  */
-                if ((hw->mac.type == e1000_ich8lan) &&
-                    (hw->phy.type == e1000_phy_igp_3))
+                if (hw->mac.type == e1000_ich8lan)
                         e1000e_gig_downshift_workaround_ich8lan(hw);
 
                 /* When LPLU is enabled, we should disable SmartSpeed */
@@ -1905,7 +2036,7 @@ static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank)
                 break;
         case 1:
                 sector_size = ICH_FLASH_SEG_SIZE_4K;
-                iteration = flash_bank_size / ICH_FLASH_SEG_SIZE_4K;
+                iteration = 1;
                 break;
         case 2:
                 if (hw->mac.type == e1000_ich9lan) {
@@ -1917,7 +2048,7 @@ static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank)
                 break;
         case 3:
                 sector_size = ICH_FLASH_SEG_SIZE_64K;
-                iteration = flash_bank_size / ICH_FLASH_SEG_SIZE_64K;
+                iteration = 1;
                 break;
         default:
                 return -E1000_ERR_NVM;
@@ -2143,6 +2274,12 @@ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw)
         ctrl = er32(CTRL);
 
         if (!e1000_check_reset_block(hw)) {
+                /* Clear PHY Reset Asserted bit */
+                if (hw->mac.type >= e1000_pchlan) {
+                        u32 status = er32(STATUS);
+                        ew32(STATUS, status & ~E1000_STATUS_PHYRA);
+                }
+
                 /*
                  * PHY HW reset requires MAC CORE reset at the same
                  * time to make sure the interface between MAC and the
@@ -2156,23 +2293,34 @@ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw)
         ew32(CTRL, (ctrl | E1000_CTRL_RST));
         msleep(20);
 
-        if (!ret_val) {
-                /* release the swflag because it is not reset by
-                 * hardware reset
-                 */
+        if (!ret_val)
                 e1000_release_swflag_ich8lan(hw);
-        }
 
-        ret_val = e1000e_get_auto_rd_done(hw);
-        if (ret_val) {
-                /*
-                 * When auto config read does not complete, do not
-                 * return with an error. This can happen in situations
-                 * where there is no eeprom and prevents getting link.
-                 */
-                hw_dbg(hw, "Auto Read Done did not complete\n");
+        if (ctrl & E1000_CTRL_PHY_RST)
+                ret_val = hw->phy.ops.get_cfg_done(hw);
+
+        if (hw->mac.type >= e1000_ich10lan) {
+                e1000_lan_init_done_ich8lan(hw);
+        } else {
+                ret_val = e1000e_get_auto_rd_done(hw);
+                if (ret_val) {
+                        /*
+                         * When auto config read does not complete, do not
+                         * return with an error. This can happen in situations
+                         * where there is no eeprom and prevents getting link.
+                         */
+                        hw_dbg(hw, "Auto Read Done did not complete\n");
+                }
         }
 
+        /*
+         * For PCH, this write will make sure that any noise
+         * will be detected as a CRC error and be dropped rather than show up
+         * as a bad packet to the DMA engine.
+         */
+        if (hw->mac.type == e1000_pchlan)
+                ew32(CRC_OFFSET, 0x65656565);
+
         ew32(IMC, 0xffffffff);
         icr = er32(ICR);
 
@@ -2222,6 +2370,18 @@ static s32 e1000_init_hw_ich8lan(struct e1000_hw *hw)
         for (i = 0; i < mac->mta_reg_count; i++)
                 E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
 
+        /*
+         * The 82578 Rx buffer will stall if wakeup is enabled in host and
+         * the ME.  Reading the BM_WUC register will clear the host wakeup bit.
+         * Reset the phy after disabling host wakeup to reset the Rx buffer.
+         */
+        if (hw->phy.type == e1000_phy_82578) {
+                hw->phy.ops.read_phy_reg(hw, BM_WUC, &i);
+                ret_val = e1000_phy_hw_reset_ich8lan(hw);
+                if (ret_val)
+                        return ret_val;
+        }
+
         /* Setup link and flow control */
         ret_val = e1000_setup_link_ich8lan(hw);
 
@@ -2254,16 +2414,6 @@ static s32 e1000_init_hw_ich8lan(struct e1000_hw *hw)
         ew32(CTRL_EXT, ctrl_ext);
 
         /*
-         * The 82578 Rx buffer will stall if wakeup is enabled in host and
-         * the ME.  Reading the BM_WUC register will clear the host wakeup bit.
-         * Reset the phy after disabling host wakeup to reset the Rx buffer.
-         */
-        if (hw->phy.type == e1000_phy_82578) {
-                e1e_rphy(hw, BM_WUC, &i);
-                e1000e_phy_hw_reset_generic(hw);
-        }
-
-        /*
          * Clear all of the statistics registers (clear on read).  It is
          * important that we do this after we have tried to establish link
          * because the symbol error count will increment wildly if there
@@ -2485,6 +2635,14 @@ static s32 e1000_get_link_up_info_ich8lan(struct e1000_hw *hw, u16 *speed,
         if (ret_val)
                 return ret_val;
 
+        if ((hw->mac.type == e1000_pchlan) && (*speed == SPEED_1000)) {
+                ret_val = e1000e_write_kmrn_reg(hw,
+                                                  E1000_KMRNCTRLSTA_K1_CONFIG,
+                                                  E1000_KMRNCTRLSTA_K1_DISABLE);
+                if (ret_val)
+                        return ret_val;
+        }
+
         if ((hw->mac.type == e1000_ich8lan) &&
             (hw->phy.type == e1000_phy_igp_3) &&
             (*speed == SPEED_1000)) {
@@ -2850,6 +3008,16 @@ static s32 e1000_get_cfg_done_ich8lan(struct e1000_hw *hw)
 {
         u32 bank = 0;
 
+        if (hw->mac.type >= e1000_pchlan) {
+                u32 status = er32(STATUS);
+
+                if (status & E1000_STATUS_PHYRA)
+                        ew32(STATUS, status & ~E1000_STATUS_PHYRA);
+                else
+                        hw_dbg(hw,
+                               "PHY Reset Asserted not set - needs delay\n");
+        }
+
         e1000e_get_cfg_done(hw);
 
         /* If EEPROM is not marked present, init the IGP 3 PHY manually */
@@ -2921,7 +3089,7 @@ static void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw)
 static struct e1000_mac_operations ich8_mac_ops = {
         .id_led_init            = e1000e_id_led_init,
         .check_mng_mode         = e1000_check_mng_mode_ich8lan,
-        .check_for_link         = e1000e_check_for_copper_link,
+        .check_for_link         = e1000_check_for_copper_link_ich8lan,
         /* cleanup_led dependent on mac type */
         .clear_hw_cntrs         = e1000_clear_hw_cntrs_ich8lan,
         .get_bus_info           = e1000_get_bus_info_ich8lan,
diff --git a/drivers/net/e1000e/lib.c b/drivers/net/e1000e/lib.c
index be6d9e990374..99ba2b8a2a05 100644
--- a/drivers/net/e1000e/lib.c
+++ b/drivers/net/e1000e/lib.c
@@ -378,12 +378,6 @@ s32 e1000e_check_for_copper_link(struct e1000_hw *hw)
 
         mac->get_link_status = 0;
 
-        if (hw->phy.type == e1000_phy_82578) {
-                ret_val = e1000_link_stall_workaround_hv(hw);
-                if (ret_val)
-                        return ret_val;
-        }
-
         /*
          * Check if there was DownShift, must be checked
          * immediately after link-up
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index 679885a122b4..63415bb6f48f 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -4785,6 +4785,9 @@ static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev,
 
         netif_device_detach(netdev);
 
+        if (state == pci_channel_io_perm_failure)
+                return PCI_ERS_RESULT_DISCONNECT;
+
         if (netif_running(netdev))
                 e1000e_down(adapter);
         pci_disable_device(pdev);
diff --git a/drivers/net/e1000e/phy.c b/drivers/net/e1000e/phy.c
index e23459cf3d0e..994401fd0664 100644
--- a/drivers/net/e1000e/phy.c
+++ b/drivers/net/e1000e/phy.c
@@ -1531,7 +1531,12 @@ s32 e1000e_phy_has_link_generic(struct e1000_hw *hw, u32 iterations,
                  */
                 ret_val = e1e_rphy(hw, PHY_STATUS, &phy_status);
                 if (ret_val)
-                        break;
+                        /*
+                         * If the first read fails, another entity may have
+                         * ownership of the resources, wait and try again to
+                         * see if they have relinquished the resources yet.
+                         */
+                        udelay(usec_interval);
                 ret_val = e1e_rphy(hw, PHY_STATUS, &phy_status);
                 if (ret_val)
                         break;
@@ -2737,6 +2742,11 @@ s32 e1000_link_stall_workaround_hv(struct e1000_hw *hw)
         if (hw->phy.type != e1000_phy_82578)
                 goto out;
 
+        /* Do not apply workaround if in PHY loopback bit 14 set */
+        hw->phy.ops.read_phy_reg(hw, PHY_CONTROL, &data);
+        if (data & PHY_CONTROL_LB)
+                goto out;
+
         /* check if link is up and at 1Gbps */
         ret_val = hw->phy.ops.read_phy_reg(hw, BM_CS_STATUS, &data);
         if (ret_val)
diff --git a/drivers/net/eepro.c b/drivers/net/eepro.c
index cc2ab6412c73..4f7003485348 100644
--- a/drivers/net/eepro.c
+++ b/drivers/net/eepro.c
@@ -1784,7 +1784,7 @@ int __init init_module(void)
                 printk(KERN_INFO "eepro_init_module: Auto-detecting boards (May God protect us...)\n");
         }
 
-        for (i = 0; io[i] != -1 && i < MAX_EEPRO; i++) {
+        for (i = 0; i < MAX_EEPRO && io[i] != -1; i++) {
                 dev = alloc_etherdev(sizeof(struct eepro_local));
                 if (!dev)
                         break;
diff --git a/drivers/net/eexpress.c b/drivers/net/eexpress.c
index 1686dca28748..1f016d66684a 100644
--- a/drivers/net/eexpress.c
+++ b/drivers/net/eexpress.c
@@ -1474,13 +1474,13 @@ static void eexp_hw_init586(struct net_device *dev)
         outw(0x0000, ioaddr + 0x800c);
         outw(0x0000, ioaddr + 0x800e);
 
-        for (i = 0; i < (sizeof(start_code)); i+=32) {
+        for (i = 0; i < ARRAY_SIZE(start_code) * 2; i+=32) {
                 int j;
                 outw(i, ioaddr + SM_PTR);
-                for (j = 0; j < 16; j+=2)
+                for (j = 0; j < 16 && (i+j)/2 < ARRAY_SIZE(start_code); j+=2)
                         outw(start_code[(i+j)/2],
                              ioaddr+0x4000+j);
-                for (j = 0; j < 16; j+=2)
+                for (j = 0; j < 16 && (i+j+16)/2 < ARRAY_SIZE(start_code); j+=2)
                         outw(start_code[(i+j+16)/2],
                              ioaddr+0x8000+j);
         }
diff --git a/drivers/net/ehea/ehea.h b/drivers/net/ehea/ehea.h
index 78952f8324e2..fa311a950996 100644
--- a/drivers/net/ehea/ehea.h
+++ b/drivers/net/ehea/ehea.h
@@ -40,7 +40,7 @@
 #include <asm/io.h>
 
 #define DRV_NAME        "ehea"
-#define DRV_VERSION     "EHEA_0101"
+#define DRV_VERSION     "EHEA_0102"
 
 /* eHEA capability flags */
 #define DLPAR_PORT_ADD_REM 1
diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c
index 147c4b088fb3..977c3d358279 100644
--- a/drivers/net/ehea/ehea_main.c
+++ b/drivers/net/ehea/ehea_main.c
@@ -1545,6 +1545,9 @@ static int ehea_clean_portres(struct ehea_port *port, struct ehea_port_res *pr)
 {
         int ret, i;
 
+        if (pr->qp)
+                netif_napi_del(&pr->napi);
+
         ret = ehea_destroy_qp(pr->qp);
 
         if (!ret) {
@@ -3080,7 +3083,9 @@ static const struct net_device_ops ehea_netdev_ops = {
         .ndo_poll_controller    = ehea_netpoll,
 #endif
         .ndo_get_stats          = ehea_get_stats,
+        .ndo_change_mtu         = eth_change_mtu,
         .ndo_set_mac_address    = ehea_set_mac_addr,
+        .ndo_validate_addr      = eth_validate_addr,
         .ndo_set_multicast_list = ehea_set_multicast_list,
         .ndo_change_mtu         = ehea_change_mtu,
         .ndo_vlan_rx_register   = ehea_vlan_rx_register,
diff --git a/drivers/net/epic100.c b/drivers/net/epic100.c
index b60e27dfcfa7..88d7ebf31220 100644
--- a/drivers/net/epic100.c
+++ b/drivers/net/epic100.c
@@ -338,8 +338,7 @@ static int __devinit epic_init_one (struct pci_dev *pdev,
 #ifndef MODULE
         static int printed_version;
         if (!printed_version++)
-                printk (KERN_INFO "%s" KERN_INFO "%s",
-                        version, version2);
+                printk(KERN_INFO "%s%s", version, version2);
 #endif
 
         card_idx++;
@@ -1600,7 +1599,7 @@ static int __init epic_init (void)
 {
 /* when a module, this is printed whether or not devices are found in probe */
 #ifdef MODULE
-        printk (KERN_INFO "%s" KERN_INFO "%s",
+        printk (KERN_INFO "%s%s",
                 version, version2);
 #endif
 
diff --git a/drivers/net/fealnx.c b/drivers/net/fealnx.c
index 891be28a7d4f..160655d24581 100644
--- a/drivers/net/fealnx.c
+++ b/drivers/net/fealnx.c
@@ -584,7 +584,8 @@ static int __devinit fealnx_init_one(struct pci_dev *pdev,
         if (np->flags == HAS_MII_XCVR) {
                 int phy, phy_idx = 0;
 
-                for (phy = 1; phy < 32 && phy_idx < 4; phy++) {
+                for (phy = 1; phy < 32 && phy_idx < ARRAY_SIZE(np->phys);
+                               phy++) {
                         int mii_status = mdio_read(dev, phy, 1);
 
                         if (mii_status != 0xffff && mii_status != 0x0000) {
@@ -1209,17 +1210,20 @@ static void fealnx_tx_timeout(struct net_device *dev)
         unsigned long flags;
         int i;
 
-        printk(KERN_WARNING "%s: Transmit timed out, status %8.8x,"
-               " resetting...\n", dev->name, ioread32(ioaddr + ISR));
+        printk(KERN_WARNING
+               "%s: Transmit timed out, status %8.8x, resetting...\n",
+               dev->name, ioread32(ioaddr + ISR));
 
         {
                 printk(KERN_DEBUG "  Rx ring %p: ", np->rx_ring);
                 for (i = 0; i < RX_RING_SIZE; i++)
-                        printk(" %8.8x", (unsigned int) np->rx_ring[i].status);
-                printk("\n" KERN_DEBUG "  Tx ring %p: ", np->tx_ring);
+                        printk(KERN_CONT " %8.8x",
+                               (unsigned int) np->rx_ring[i].status);
+                printk(KERN_CONT "\n");
+                printk(KERN_DEBUG "  Tx ring %p: ", np->tx_ring);
                 for (i = 0; i < TX_RING_SIZE; i++)
-                        printk(" %4.4x", np->tx_ring[i].status);
-                printk("\n");
+                        printk(KERN_CONT " %4.4x", np->tx_ring[i].status);
+                printk(KERN_CONT "\n");
         }
 
         spin_lock_irqsave(&np->lock, flags);
diff --git a/drivers/net/fec.c b/drivers/net/fec.c
index 0f19b743749b..d4b98074b1b7 100644
--- a/drivers/net/fec.c
+++ b/drivers/net/fec.c
@@ -1642,6 +1642,7 @@ static const struct net_device_ops fec_netdev_ops = {
         .ndo_stop               = fec_enet_close,
         .ndo_start_xmit         = fec_enet_start_xmit,
         .ndo_set_multicast_list = set_multicast_list,
+        .ndo_change_mtu         = eth_change_mtu,
         .ndo_validate_addr      = eth_validate_addr,
         .ndo_tx_timeout         = fec_timeout,
         .ndo_set_mac_address    = fec_set_mac_address,
diff --git a/drivers/net/fec.h b/drivers/net/fec.h
index 30b7dd671336..cc47f3f057c7 100644
--- a/drivers/net/fec.h
+++ b/drivers/net/fec.h
@@ -46,12 +46,12 @@
 
 #else
 
-#define FEC_ECNTRL;             0x000 /* Ethernet control reg */
-#define FEC_IEVENT;             0x004 /* Interrupt even reg */
-#define FEC_IMASK;              0x008 /* Interrupt mask reg */
-#define FEC_IVEC;               0x00c /* Interrupt vec status reg */
-#define FEC_R_DES_ACTIVE;       0x010 /* Receive descriptor reg */
-#define FEC_X_DES_ACTIVE;       0x01c /* Transmit descriptor reg */
+#define FEC_ECNTRL              0x000 /* Ethernet control reg */
+#define FEC_IEVENT              0x004 /* Interrupt even reg */
+#define FEC_IMASK               0x008 /* Interrupt mask reg */
+#define FEC_IVEC                0x00c /* Interrupt vec status reg */
+#define FEC_R_DES_ACTIVE        0x010 /* Receive descriptor reg */
+#define FEC_X_DES_ACTIVE        0x014 /* Transmit descriptor reg */
 #define FEC_MII_DATA            0x040 /* MII manage frame reg */
 #define FEC_MII_SPEED           0x044 /* MII speed control reg */
 #define FEC_R_BOUND             0x08c /* FIFO receive bound reg */
diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index 1094d292630f..3b4e0766c7b2 100644
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -3514,11 +3514,13 @@ static irqreturn_t nv_nic_irq(int foo, void *data)
         nv_msi_workaround(np);
 
 #ifdef CONFIG_FORCEDETH_NAPI
-        napi_schedule(&np->napi);
-
-        /* Disable furthur irq's
-           (msix not enabled with napi) */
-        writel(0, base + NvRegIrqMask);
+        if (napi_schedule_prep(&np->napi)) {
+                /*
+                 * Disable further irq's (msix not enabled with napi)
+                 */
+                writel(0, base + NvRegIrqMask);
+                __napi_schedule(&np->napi);
+        }
 
 #else
         do
@@ -3615,12 +3617,13 @@ static irqreturn_t nv_nic_irq_optimized(int foo, void *data)
         nv_msi_workaround(np);
 
 #ifdef CONFIG_FORCEDETH_NAPI
-        napi_schedule(&np->napi);
-
-        /* Disable furthur irq's
-           (msix not enabled with napi) */
-        writel(0, base + NvRegIrqMask);
-
+        if (napi_schedule_prep(&np->napi)) {
+                /*
+                 * Disable further irq's (msix not enabled with napi)
+                 */
+                writel(0, base + NvRegIrqMask);
+                __napi_schedule(&np->napi);
+        }
 #else
         do
         {
diff --git a/drivers/net/fs_enet/fs_enet-main.c b/drivers/net/fs_enet/fs_enet-main.c
index b892c3ad9a74..2bc2d2b20644 100644
--- a/drivers/net/fs_enet/fs_enet-main.c
+++ b/drivers/net/fs_enet/fs_enet-main.c
@@ -754,17 +754,16 @@ static int fs_init_phy(struct net_device *dev)
         fep->oldlink = 0;
         fep->oldspeed = 0;
         fep->oldduplex = -1;
-        if(fep->fpi->phy_node)
-                phydev = of_phy_connect(dev, fep->fpi->phy_node,
-                                        &fs_adjust_link, 0,
-                                        PHY_INTERFACE_MODE_MII);
-        else {
-                printk("No phy bus ID specified in BSP code\n");
-                return -EINVAL;
+
+        phydev = of_phy_connect(dev, fep->fpi->phy_node, &fs_adjust_link, 0,
+                                PHY_INTERFACE_MODE_MII);
+        if (!phydev) {
+                phydev = of_phy_connect_fixed_link(dev, &fs_adjust_link,
+                                                   PHY_INTERFACE_MODE_MII);
         }
-        if (IS_ERR(phydev)) {
-                printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);
-                return PTR_ERR(phydev);
+        if (!phydev) {
+                dev_err(&dev->dev, "Could not attach to PHY\n");
+                return -ENODEV;
         }
 
         fep->phydev = phydev;
@@ -1005,6 +1004,7 @@ static int __devinit fs_enet_probe(struct of_device *ofdev,
                 goto out_free_fpi;
         }
 
+        SET_NETDEV_DEV(ndev, &ofdev->dev);
         dev_set_drvdata(&ofdev->dev, ndev);
 
         fep = netdev_priv(ndev);
diff --git a/drivers/net/fsl_pq_mdio.c b/drivers/net/fsl_pq_mdio.c
index 3af581303ca2..d167090248e2 100644
--- a/drivers/net/fsl_pq_mdio.c
+++ b/drivers/net/fsl_pq_mdio.c
@@ -188,7 +188,7 @@ static int fsl_pq_mdio_find_free(struct mii_bus *new_bus)
 }
 
 
-#ifdef CONFIG_GIANFAR
+#if defined(CONFIG_GIANFAR) || defined(CONFIG_GIANFAR_MODULE)
 static u32 __iomem *get_gfar_tbipa(struct fsl_pq_mdio __iomem *regs)
 {
         struct gfar __iomem *enet_regs;
@@ -206,7 +206,7 @@ static u32 __iomem *get_gfar_tbipa(struct fsl_pq_mdio __iomem *regs)
 #endif
 
 
-#ifdef CONFIG_UCC_GETH
+#if defined(CONFIG_UCC_GETH) || defined(CONFIG_UCC_GETH_MODULE)
 static int get_ucc_id_for_range(u64 start, u64 end, u32 *ucc_id)
 {
         struct device_node *np = NULL;
@@ -291,7 +291,7 @@ static int fsl_pq_mdio_probe(struct of_device *ofdev,
         if (of_device_is_compatible(np, "fsl,gianfar-mdio") ||
                         of_device_is_compatible(np, "fsl,gianfar-tbi") ||
                         of_device_is_compatible(np, "gianfar")) {
-#ifdef CONFIG_GIANFAR
+#if defined(CONFIG_GIANFAR) || defined(CONFIG_GIANFAR_MODULE)
                 tbipa = get_gfar_tbipa(regs);
 #else
                 err = -ENODEV;
@@ -299,7 +299,7 @@ static int fsl_pq_mdio_probe(struct of_device *ofdev,
 #endif
         } else if (of_device_is_compatible(np, "fsl,ucc-mdio") ||
                         of_device_is_compatible(np, "ucc_geth_phy")) {
-#ifdef CONFIG_UCC_GETH
+#if defined(CONFIG_UCC_GETH) || defined(CONFIG_UCC_GETH_MODULE)
                 u32 id;
                 static u32 mii_mng_master;
 
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index 4ae1d259fced..f8ffcbf0bc39 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -156,6 +156,8 @@ static const struct net_device_ops gfar_netdev_ops = {
         .ndo_tx_timeout = gfar_timeout,
         .ndo_do_ioctl = gfar_ioctl,
         .ndo_vlan_rx_register = gfar_vlan_rx_register,
+        .ndo_set_mac_address = eth_mac_addr,
+        .ndo_validate_addr = eth_validate_addr,
 #ifdef CONFIG_NET_POLL_CONTROLLER
         .ndo_poll_controller = gfar_netpoll,
 #endif
@@ -262,15 +264,6 @@ static int gfar_of_init(struct net_device *dev)
                 priv->device_flags |= FSL_GIANFAR_DEV_HAS_MAGIC_PACKET;
 
         priv->phy_node = of_parse_phandle(np, "phy-handle", 0);
-        if (!priv->phy_node) {
-                u32 *fixed_link;
-
-                fixed_link = (u32 *)of_get_property(np, "fixed-link", NULL);
-                if (!fixed_link) {
-                        err = -ENODEV;
-                        goto err_out;
-                }
-        }
 
         /* Find the TBI PHY.  If it's not there, we don't support SGMII */
         priv->tbi_node = of_parse_phandle(np, "tbi-handle", 0);
@@ -657,13 +650,14 @@ static int init_phy(struct net_device *dev)
 
         interface = gfar_get_interface(dev);
 
-        if (priv->phy_node) {
-                priv->phydev = of_phy_connect(dev, priv->phy_node, &adjust_link,
-                                              0, interface);
-                if (!priv->phydev) {
-                        dev_err(&dev->dev, "error: Could not attach to PHY\n");
-                        return -ENODEV;
-                }
+        priv->phydev = of_phy_connect(dev, priv->phy_node, &adjust_link, 0,
+                                      interface);
+        if (!priv->phydev)
+                priv->phydev = of_phy_connect_fixed_link(dev, &adjust_link,
+                                                         interface);
+        if (!priv->phydev) {
+                dev_err(&dev->dev, "could not attach to PHY\n");
+                return -ENODEV;
         }
 
         if (interface == PHY_INTERFACE_MODE_SGMII)
diff --git a/drivers/net/gianfar_ethtool.c b/drivers/net/gianfar_ethtool.c
index dbf06e9313cc..2234118eedbb 100644
--- a/drivers/net/gianfar_ethtool.c
+++ b/drivers/net/gianfar_ethtool.c
@@ -366,9 +366,8 @@ static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals
                 return -EINVAL;
         }
 
-        priv->rxic = mk_ic_value(
-                gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs),
-                cvals->rx_max_coalesced_frames);
+        priv->rxic = mk_ic_value(cvals->rx_max_coalesced_frames,
+                gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs));
 
         /* Set up tx coalescing */
         if ((cvals->tx_coalesce_usecs == 0) ||
@@ -390,9 +389,8 @@ static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals
                 return -EINVAL;
         }
 
-        priv->txic = mk_ic_value(
-                gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs),
-                cvals->tx_max_coalesced_frames);
+        priv->txic = mk_ic_value(cvals->tx_max_coalesced_frames,
+                gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs));
 
         gfar_write(&priv->regs->rxic, 0);
         if (priv->rxcoalescing)
diff --git a/drivers/net/hamachi.c b/drivers/net/hamachi.c
index 9d5b62cb30f7..d62378cbc149 100644
--- a/drivers/net/hamachi.c
+++ b/drivers/net/hamachi.c
@@ -173,8 +173,8 @@ static int tx_params[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
 
 static const char version[] __devinitconst =
 KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE "  Written by Donald Becker\n"
-KERN_INFO "   Some modifications by Eric kasten <kasten@nscl.msu.edu>\n"
-KERN_INFO "   Further modifications by Keith Underwood <keithu@parl.clemson.edu>\n";
+"   Some modifications by Eric kasten <kasten@nscl.msu.edu>\n"
+"   Further modifications by Keith Underwood <keithu@parl.clemson.edu>\n";
 
 
 /* IP_MF appears to be only defined in <netinet/ip.h>, however,
@@ -1080,11 +1080,14 @@ static void hamachi_tx_timeout(struct net_device *dev)
         {
                 printk(KERN_DEBUG "  Rx ring %p: ", hmp->rx_ring);
                 for (i = 0; i < RX_RING_SIZE; i++)
-                        printk(" %8.8x", le32_to_cpu(hmp->rx_ring[i].status_n_length));
-                printk("\n"KERN_DEBUG"  Tx ring %p: ", hmp->tx_ring);
+                        printk(KERN_CONT " %8.8x",
+                               le32_to_cpu(hmp->rx_ring[i].status_n_length));
+                printk(KERN_CONT "\n");
+                printk(KERN_DEBUG"  Tx ring %p: ", hmp->tx_ring);
                 for (i = 0; i < TX_RING_SIZE; i++)
-                        printk(" %4.4x", le32_to_cpu(hmp->tx_ring[i].status_n_length));
-                printk("\n");
+                        printk(KERN_CONT " %4.4x",
+                               le32_to_cpu(hmp->tx_ring[i].status_n_length));
+                printk(KERN_CONT "\n");
         }
 
         /* Reinit the hardware and make sure the Rx and Tx processes
@@ -1753,13 +1756,13 @@ static int hamachi_close(struct net_device *dev)
 
 #ifdef __i386__
         if (hamachi_debug > 2) {
-                printk("\n"KERN_DEBUG"  Tx ring at %8.8x:\n",
+                printk(KERN_DEBUG "  Tx ring at %8.8x:\n",
                            (int)hmp->tx_ring_dma);
                 for (i = 0; i < TX_RING_SIZE; i++)
-                        printk(" %c #%d desc. %8.8x %8.8x.\n",
+                        printk(KERN_DEBUG " %c #%d desc. %8.8x %8.8x.\n",
                                    readl(ioaddr + TxCurPtr) == (long)&hmp->tx_ring[i] ? '>' : ' ',
                                    i, hmp->tx_ring[i].status_n_length, hmp->tx_ring[i].addr);
-                printk("\n"KERN_DEBUG "  Rx ring %8.8x:\n",
+                printk(KERN_DEBUG "  Rx ring %8.8x:\n",
                            (int)hmp->rx_ring_dma);
                 for (i = 0; i < RX_RING_SIZE; i++) {
                         printk(KERN_DEBUG " %c #%d desc. %4.4x %8.8x\n",
@@ -1770,7 +1773,7 @@ static int hamachi_close(struct net_device *dev)
                                         u16 *addr = (u16 *)
                                                 hmp->rx_skbuff[i]->data;
                                         int j;
-
+                                        printk(KERN_DEBUG "Addr: ");
                                         for (j = 0; j < 0x50; j++)
                                                 printk(" %4.4x", addr[j]);
                                         printk("\n");
diff --git a/drivers/net/hamradio/6pack.c b/drivers/net/hamradio/6pack.c
index 155160052c8b..981ab530e9ac 100644
--- a/drivers/net/hamradio/6pack.c
+++ b/drivers/net/hamradio/6pack.c
@@ -3,7 +3,7 @@
  *              devices like TTY. It interfaces between a raw TTY and the
  *              kernel's AX.25 protocol layers.
  *
- * Authors:     Andreas Könsgen <ajk@iehk.rwth-aachen.de>
+ * Authors:     Andreas Könsgen <ajk@comnets.uni-bremen.de>
  *              Ralf Baechle DL5RB <ralf@linux-mips.org>
  *
  * Quite a lot of stuff "stolen" by Joerg Reuter from slip.c, written by
diff --git a/drivers/net/hamradio/baycom_epp.c b/drivers/net/hamradio/baycom_epp.c
index 5e4b7afd0683..352703255bba 100644
--- a/drivers/net/hamradio/baycom_epp.c
+++ b/drivers/net/hamradio/baycom_epp.c
@@ -68,7 +68,7 @@ static const char paranoia_str[] = KERN_ERR
 
 static const char bc_drvname[] = "baycom_epp";
 static const char bc_drvinfo[] = KERN_INFO "baycom_epp: (C) 1998-2000 Thomas Sailer, HB9JNX/AE4WA\n"
-KERN_INFO "baycom_epp: version 0.7 compiled " __TIME__ " " __DATE__ "\n";
+"baycom_epp: version 0.7 compiled " __TIME__ " " __DATE__ "\n";
 
 /* --------------------------------------------------------------------- */
 
diff --git a/drivers/net/hamradio/baycom_par.c b/drivers/net/hamradio/baycom_par.c
index 2e6fc4dc74b1..5f5af9a606f8 100644
--- a/drivers/net/hamradio/baycom_par.c
+++ b/drivers/net/hamradio/baycom_par.c
@@ -102,7 +102,7 @@
 
 static const char bc_drvname[] = "baycom_par";
 static const char bc_drvinfo[] = KERN_INFO "baycom_par: (C) 1996-2000 Thomas Sailer, HB9JNX/AE4WA\n"
-KERN_INFO "baycom_par: version 0.9 compiled " __TIME__ " " __DATE__ "\n";
+"baycom_par: version 0.9 compiled " __TIME__ " " __DATE__ "\n";
 
 /* --------------------------------------------------------------------- */
 
diff --git a/drivers/net/hamradio/baycom_ser_fdx.c b/drivers/net/hamradio/baycom_ser_fdx.c
index b6a816e60c0f..aa4488e871b2 100644
--- a/drivers/net/hamradio/baycom_ser_fdx.c
+++ b/drivers/net/hamradio/baycom_ser_fdx.c
@@ -91,7 +91,7 @@
 
 static const char bc_drvname[] = "baycom_ser_fdx";
 static const char bc_drvinfo[] = KERN_INFO "baycom_ser_fdx: (C) 1996-2000 Thomas Sailer, HB9JNX/AE4WA\n"
-KERN_INFO "baycom_ser_fdx: version 0.10 compiled " __TIME__ " " __DATE__ "\n";
+"baycom_ser_fdx: version 0.10 compiled " __TIME__ " " __DATE__ "\n";
 
 /* --------------------------------------------------------------------- */
 
diff --git a/drivers/net/hamradio/baycom_ser_hdx.c b/drivers/net/hamradio/baycom_ser_hdx.c
index 3bcc57acbe6d..88c593596020 100644
--- a/drivers/net/hamradio/baycom_ser_hdx.c
+++ b/drivers/net/hamradio/baycom_ser_hdx.c
@@ -79,7 +79,7 @@
 
 static const char bc_drvname[] = "baycom_ser_hdx";
 static const char bc_drvinfo[] = KERN_INFO "baycom_ser_hdx: (C) 1996-2000 Thomas Sailer, HB9JNX/AE4WA\n"
-KERN_INFO "baycom_ser_hdx: version 0.10 compiled " __TIME__ " " __DATE__ "\n";
+"baycom_ser_hdx: version 0.10 compiled " __TIME__ " " __DATE__ "\n";
 
 /* --------------------------------------------------------------------- */
 
diff --git a/drivers/net/ibm_newemac/rgmii.c b/drivers/net/ibm_newemac/rgmii.c
index 1d5379de6900..8d76cb89dbd6 100644
--- a/drivers/net/ibm_newemac/rgmii.c
+++ b/drivers/net/ibm_newemac/rgmii.c
@@ -188,11 +188,12 @@ void rgmii_put_mdio(struct of_device *ofdev, int input)
 void rgmii_detach(struct of_device *ofdev, int input)
 {
         struct rgmii_instance *dev = dev_get_drvdata(&ofdev->dev);
-        struct rgmii_regs __iomem *p = dev->base;
-
-        mutex_lock(&dev->lock);
+        struct rgmii_regs __iomem *p;
 
         BUG_ON(!dev || dev->users == 0);
+        p = dev->base;
+
+        mutex_lock(&dev->lock);
 
         RGMII_DBG(dev, "detach(%d)" NL, input);
 
diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c
index efd9be214885..ac28dd5a4fd1 100644
--- a/drivers/net/igb/e1000_82575.c
+++ b/drivers/net/igb/e1000_82575.c
@@ -190,6 +190,10 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw)
                 phy->ops.write_reg          = igb_write_phy_reg_igp;
         }
 
+        /* set lan id */
+        hw->bus.func = (rd32(E1000_STATUS) & E1000_STATUS_FUNC_MASK) >>
+                       E1000_STATUS_FUNC_SHIFT;
+
         /* Set phy->phy_addr and phy->id. */
         ret_val = igb_get_phy_id_82575(hw);
         if (ret_val)
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index ea17319624aa..adb09d32625d 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -127,14 +127,48 @@ static void igb_restore_vlan(struct igb_adapter *);
 static void igb_ping_all_vfs(struct igb_adapter *);
 static void igb_msg_task(struct igb_adapter *);
 static int igb_rcv_msg_from_vf(struct igb_adapter *, u32);
-static inline void igb_set_rah_pool(struct e1000_hw *, int , int);
 static void igb_set_mc_list_pools(struct igb_adapter *, int, u16);
 static void igb_vmm_control(struct igb_adapter *);
-static inline void igb_set_vmolr(struct e1000_hw *, int);
-static inline int igb_set_vf_rlpml(struct igb_adapter *, int, int);
 static int igb_set_vf_mac(struct igb_adapter *adapter, int, unsigned char *);
 static void igb_restore_vf_multicasts(struct igb_adapter *adapter);
 
+static inline void igb_set_vmolr(struct e1000_hw *hw, int vfn)
+{
+        u32 reg_data;
+
+        reg_data = rd32(E1000_VMOLR(vfn));
+        reg_data |= E1000_VMOLR_BAM |    /* Accept broadcast */
+                    E1000_VMOLR_ROPE |   /* Accept packets matched in UTA */
+                    E1000_VMOLR_ROMPE |  /* Accept packets matched in MTA */
+                    E1000_VMOLR_AUPE |   /* Accept untagged packets */
+                    E1000_VMOLR_STRVLAN; /* Strip vlan tags */
+        wr32(E1000_VMOLR(vfn), reg_data);
+}
+
+static inline int igb_set_vf_rlpml(struct igb_adapter *adapter, int size,
+                                 int vfn)
+{
+        struct e1000_hw *hw = &adapter->hw;
+        u32 vmolr;
+
+        vmolr = rd32(E1000_VMOLR(vfn));
+        vmolr &= ~E1000_VMOLR_RLPML_MASK;
+        vmolr |= size | E1000_VMOLR_LPE;
+        wr32(E1000_VMOLR(vfn), vmolr);
+
+        return 0;
+}
+
+static inline void igb_set_rah_pool(struct e1000_hw *hw, int pool, int entry)
+{
+        u32 reg_data;
+
+        reg_data = rd32(E1000_RAH(entry));
+        reg_data &= ~E1000_RAH_POOL_MASK;
+        reg_data |= E1000_RAH_POOL_1 << pool;;
+        wr32(E1000_RAH(entry), reg_data);
+}
+
 #ifdef CONFIG_PM
 static int igb_suspend(struct pci_dev *, pm_message_t);
 static int igb_resume(struct pci_dev *);
@@ -4549,11 +4583,12 @@ static bool igb_clean_rx_irq_adv(struct igb_ring *rx_ring,
                 cleaned = true;
                 cleaned_count++;
 
+                /* this is the fast path for the non-packet split case */
                 if (!adapter->rx_ps_hdr_size) {
                         pci_unmap_single(pdev, buffer_info->dma,
-                                         adapter->rx_buffer_len +
-                                           NET_IP_ALIGN,
+                                         adapter->rx_buffer_len,
                                          PCI_DMA_FROMDEVICE);
+                        buffer_info->dma = 0;
                         skb_put(skb, length);
                         goto send_up;
                 }
@@ -4570,8 +4605,9 @@ static bool igb_clean_rx_irq_adv(struct igb_ring *rx_ring,
 
                 if (!skb_shinfo(skb)->nr_frags) {
                         pci_unmap_single(pdev, buffer_info->dma,
-                                         adapter->rx_ps_hdr_size + NET_IP_ALIGN,
+                                         adapter->rx_ps_hdr_size,
                                          PCI_DMA_FROMDEVICE);
+                        buffer_info->dma = 0;
                         skb_put(skb, hlen);
                 }
 
@@ -4713,7 +4749,6 @@ static void igb_alloc_rx_buffers_adv(struct igb_ring *rx_ring,
                 bufsz = adapter->rx_ps_hdr_size;
         else
                 bufsz = adapter->rx_buffer_len;
-        bufsz += NET_IP_ALIGN;
 
         while (cleaned_count--) {
                 rx_desc = E1000_RX_DESC_ADV(*rx_ring, i);
@@ -4737,7 +4772,7 @@ static void igb_alloc_rx_buffers_adv(struct igb_ring *rx_ring,
                 }
 
                 if (!buffer_info->skb) {
-                        skb = netdev_alloc_skb(netdev, bufsz);
+                        skb = netdev_alloc_skb(netdev, bufsz + NET_IP_ALIGN);
                         if (!skb) {
                                 adapter->alloc_rx_buff_failed++;
                                 goto no_buffers;
@@ -5338,6 +5373,9 @@ static pci_ers_result_t igb_io_error_detected(struct pci_dev *pdev,
 
         netif_device_detach(netdev);
 
+        if (state == pci_channel_io_perm_failure)
+                return PCI_ERS_RESULT_DISCONNECT;
+
         if (netif_running(netdev))
                 igb_down(adapter);
         pci_disable_device(pdev);
@@ -5414,43 +5452,6 @@ static void igb_io_resume(struct pci_dev *pdev)
         igb_get_hw_control(adapter);
 }
 
-static inline void igb_set_vmolr(struct e1000_hw *hw, int vfn)
-{
-        u32 reg_data;
-
-        reg_data = rd32(E1000_VMOLR(vfn));
-        reg_data |= E1000_VMOLR_BAM |    /* Accept broadcast */
-                    E1000_VMOLR_ROPE |   /* Accept packets matched in UTA */
-                    E1000_VMOLR_ROMPE |  /* Accept packets matched in MTA */
-                    E1000_VMOLR_AUPE |   /* Accept untagged packets */
-                    E1000_VMOLR_STRVLAN; /* Strip vlan tags */
-        wr32(E1000_VMOLR(vfn), reg_data);
-}
-
-static inline int igb_set_vf_rlpml(struct igb_adapter *adapter, int size,
-                                 int vfn)
-{
-        struct e1000_hw *hw = &adapter->hw;
-        u32 vmolr;
-
-        vmolr = rd32(E1000_VMOLR(vfn));
-        vmolr &= ~E1000_VMOLR_RLPML_MASK;
-        vmolr |= size | E1000_VMOLR_LPE;
-        wr32(E1000_VMOLR(vfn), vmolr);
-
-        return 0;
-}
-
-static inline void igb_set_rah_pool(struct e1000_hw *hw, int pool, int entry)
-{
-        u32 reg_data;
-
-        reg_data = rd32(E1000_RAH(entry));
-        reg_data &= ~E1000_RAH_POOL_MASK;
-        reg_data |= E1000_RAH_POOL_1 << pool;;
-        wr32(E1000_RAH(entry), reg_data);
-}
-
 static void igb_set_mc_list_pools(struct igb_adapter *adapter,
                                   int entry_count, u16 total_rar_filters)
 {
diff --git a/drivers/net/igbvf/vf.c b/drivers/net/igbvf/vf.c
index 2a4faf9ade69..a9a61efa964c 100644
--- a/drivers/net/igbvf/vf.c
+++ b/drivers/net/igbvf/vf.c
@@ -274,6 +274,8 @@ static s32 e1000_set_vfta_vf(struct e1000_hw *hw, u16 vid, bool set)
 
         err = mbx->ops.read_posted(hw, msgbuf, 2);
 
+        msgbuf[0] &= ~E1000_VT_MSGTYPE_CTS;
+
         /* if nacked the vlan was rejected */
         if (!err && (msgbuf[0] == (E1000_VF_SET_VLAN | E1000_VT_MSGTYPE_NACK)))
                 err = -E1000_ERR_MAC_INIT;
@@ -317,6 +319,8 @@ static void e1000_rar_set_vf(struct e1000_hw *hw, u8 * addr, u32 index)
         if (!ret_val)
                 ret_val = mbx->ops.read_posted(hw, msgbuf, 3);
 
+        msgbuf[0] &= ~E1000_VT_MSGTYPE_CTS;
+
         /* if nacked the address was rejected, use "perm_addr" */
         if (!ret_val &&
             (msgbuf[0] == (E1000_VF_SET_MAC_ADDR | E1000_VT_MSGTYPE_NACK)))
diff --git a/drivers/net/irda/bfin_sir.c b/drivers/net/irda/bfin_sir.c
index f3eed6a8fba5..911c082cee5a 100644
--- a/drivers/net/irda/bfin_sir.c
+++ b/drivers/net/irda/bfin_sir.c
@@ -677,6 +677,14 @@ static int bfin_sir_init_iobuf(iobuff_t *io, int size)
         return 0;
 }
 
+static const struct net_device_ops bfin_sir_ndo = {
+        .ndo_open               = bfin_sir_open,
+        .ndo_stop               = bfin_sir_stop,
+        .ndo_start_xmit         = bfin_sir_hard_xmit,
+        .ndo_do_ioctl           = bfin_sir_ioctl,
+        .ndo_get_stats          = bfin_sir_stats,
+};
+
 static int __devinit bfin_sir_probe(struct platform_device *pdev)
 {
         struct net_device *dev;
@@ -718,12 +726,8 @@ static int __devinit bfin_sir_probe(struct platform_device *pdev)
         if (err)
                 goto err_mem_3;
 
-        dev->hard_start_xmit = bfin_sir_hard_xmit;
-        dev->open            = bfin_sir_open;
-        dev->stop            = bfin_sir_stop;
-        dev->do_ioctl        = bfin_sir_ioctl;
-        dev->get_stats       = bfin_sir_stats;
-        dev->irq             = sir_port->irq;
+        dev->netdev_ops = &bfin_sir_ndo;
+        dev->irq = sir_port->irq;
 
         irda_init_max_qos_capabilies(&self->qos);
 
diff --git a/drivers/net/irda/irtty-sir.c b/drivers/net/irda/irtty-sir.c
index d53aa9582137..20f9bc626688 100644
--- a/drivers/net/irda/irtty-sir.c
+++ b/drivers/net/irda/irtty-sir.c
@@ -31,7 +31,6 @@
 #include <linux/tty.h>
 #include <linux/init.h>
 #include <asm/uaccess.h>
-#include <linux/smp_lock.h>
 #include <linux/delay.h>
 #include <linux/mutex.h>
 
diff --git a/drivers/net/isa-skeleton.c b/drivers/net/isa-skeleton.c
index 73585fd8f29f..d12377b84358 100644
--- a/drivers/net/isa-skeleton.c
+++ b/drivers/net/isa-skeleton.c
@@ -430,7 +430,8 @@ static int net_send_packet(struct sk_buff *skb, struct net_device *dev)
          * hardware interrupt handler.  Queue flow control is
          * thus managed under this lock as well.
          */
-        spin_lock_irq(&np->lock);
+        unsigned long flags;
+        spin_lock_irqsave(&np->lock, flags);
 
         add_to_tx_ring(np, skb, length);
         dev->trans_start = jiffies;
@@ -446,7 +447,7 @@ static int net_send_packet(struct sk_buff *skb, struct net_device *dev)
          * is when the transmit statistics are updated.
          */
 
-        spin_unlock_irq(&np->lock);
+        spin_unlock_irqrestore(&np->lock, flags);
 #else
         /* This is the case for older hardware which takes
          * a single transmit buffer at a time, and it is
diff --git a/drivers/net/ixgbe/ixgbe.h b/drivers/net/ixgbe/ixgbe.h
index cd22323cfd22..e11d83d5852b 100644
--- a/drivers/net/ixgbe/ixgbe.h
+++ b/drivers/net/ixgbe/ixgbe.h
@@ -96,6 +96,8 @@
 #define IXGBE_TX_FLAGS_VLAN_PRIO_MASK   0x0000e000
 #define IXGBE_TX_FLAGS_VLAN_SHIFT       16
 
+#define IXGBE_MAX_RSC_INT_RATE          162760
+
 /* wrapper around a pointer to a socket buffer,
  * so a DMA handle can be stored along with the buffer */
 struct ixgbe_tx_buffer {
@@ -327,6 +329,7 @@ struct ixgbe_adapter {
 #define IXGBE_FLAG_IN_SFP_MOD_TASK              (u32)(1 << 25)
 #define IXGBE_FLAG_FDIR_HASH_CAPABLE            (u32)(1 << 26)
 #define IXGBE_FLAG_FDIR_PERFECT_CAPABLE         (u32)(1 << 27)
+#define IXGBE_FLAG_FCOE_CAPABLE                 (u32)(1 << 28)
 #define IXGBE_FLAG_FCOE_ENABLED                 (u32)(1 << 29)
 
         u32 flags2;
diff --git a/drivers/net/ixgbe/ixgbe_82598.c b/drivers/net/ixgbe/ixgbe_82598.c
index b9923047ce11..522c03bc1dad 100644
--- a/drivers/net/ixgbe/ixgbe_82598.c
+++ b/drivers/net/ixgbe/ixgbe_82598.c
@@ -50,6 +50,51 @@ static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
                                        u8 *eeprom_data);
 
 /**
+ *  ixgbe_set_pcie_completion_timeout - set pci-e completion timeout
+ *  @hw: pointer to the HW structure
+ *
+ *  The defaults for 82598 should be in the range of 50us to 50ms,
+ *  however the hardware default for these parts is 500us to 1ms which is less
+ *  than the 10ms recommended by the pci-e spec.  To address this we need to
+ *  increase the value to either 10ms to 250ms for capability version 1 config,
+ *  or 16ms to 55ms for version 2.
+ **/
+void ixgbe_set_pcie_completion_timeout(struct ixgbe_hw *hw)
+{
+        struct ixgbe_adapter *adapter = hw->back;
+        u32 gcr = IXGBE_READ_REG(hw, IXGBE_GCR);
+        u16 pcie_devctl2;
+
+        /* only take action if timeout value is defaulted to 0 */
+        if (gcr & IXGBE_GCR_CMPL_TMOUT_MASK)
+                goto out;
+
+        /*
+         * if capababilities version is type 1 we can write the
+         * timeout of 10ms to 250ms through the GCR register
+         */
+        if (!(gcr & IXGBE_GCR_CAP_VER2)) {
+                gcr |= IXGBE_GCR_CMPL_TMOUT_10ms;
+                goto out;
+        }
+
+        /*
+         * for version 2 capabilities we need to write the config space
+         * directly in order to set the completion timeout value for
+         * 16ms to 55ms
+         */
+        pci_read_config_word(adapter->pdev,
+                             IXGBE_PCI_DEVICE_CONTROL2, &pcie_devctl2);
+        pcie_devctl2 |= IXGBE_PCI_DEVICE_CONTROL2_16ms;
+        pci_write_config_word(adapter->pdev,
+                              IXGBE_PCI_DEVICE_CONTROL2, pcie_devctl2);
+out:
+        /* disable completion timeout resend */
+        gcr &= ~IXGBE_GCR_CMPL_TMOUT_RESEND;
+        IXGBE_WRITE_REG(hw, IXGBE_GCR, gcr);
+}
+
+/**
  *  ixgbe_get_pcie_msix_count_82598 - Gets MSI-X vector count
  *  @hw: pointer to hardware structure
  *
@@ -153,6 +198,26 @@ out:
 }
 
 /**
+ *  ixgbe_start_hw_82598 - Prepare hardware for Tx/Rx
+ *  @hw: pointer to hardware structure
+ *
+ *  Starts the hardware using the generic start_hw function.
+ *  Then set pcie completion timeout
+ **/
+s32 ixgbe_start_hw_82598(struct ixgbe_hw *hw)
+{
+        s32 ret_val = 0;
+
+        ret_val = ixgbe_start_hw_generic(hw);
+
+        /* set the completion timeout for interface */
+        if (ret_val == 0)
+                ixgbe_set_pcie_completion_timeout(hw);
+
+        return ret_val;
+}
+
+/**
  *  ixgbe_get_link_capabilities_82598 - Determines link capabilities
  *  @hw: pointer to hardware structure
  *  @speed: pointer to link speed
@@ -1085,7 +1150,7 @@ out:
 static struct ixgbe_mac_operations mac_ops_82598 = {
         .init_hw                = &ixgbe_init_hw_generic,
         .reset_hw               = &ixgbe_reset_hw_82598,
-        .start_hw               = &ixgbe_start_hw_generic,
+        .start_hw               = &ixgbe_start_hw_82598,
         .clear_hw_cntrs         = &ixgbe_clear_hw_cntrs_generic,
         .get_media_type         = &ixgbe_get_media_type_82598,
         .get_supported_physical_layer = &ixgbe_get_supported_physical_layer_82598,
diff --git a/drivers/net/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ixgbe/ixgbe_dcb_nl.c
index d56890f5c9d5..1c7265732900 100644
--- a/drivers/net/ixgbe/ixgbe_dcb_nl.c
+++ b/drivers/net/ixgbe/ixgbe_dcb_nl.c
@@ -106,8 +106,6 @@ static u8 ixgbe_dcbnl_get_state(struct net_device *netdev)
 {
         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 
-        DPRINTK(DRV, INFO, "Get DCB Admin Mode.\n");
-
         return !!(adapter->flags & IXGBE_FLAG_DCB_ENABLED);
 }
 
@@ -116,8 +114,6 @@ static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
         u8 err = 0;
         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 
-        DPRINTK(DRV, INFO, "Set DCB Admin Mode.\n");
-
         if (state > 0) {
                 /* Turn on DCB */
                 if (adapter->flags & IXGBE_FLAG_DCB_ENABLED)
@@ -138,7 +134,23 @@ static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
                         adapter->hw.fc.requested_mode = ixgbe_fc_none;
                 }
                 adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED;
+                if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
+                        adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE;
+                        adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE;
+                }
                 adapter->flags |= IXGBE_FLAG_DCB_ENABLED;
+#ifdef IXGBE_FCOE
+                /* Turn on FCoE offload */
+                if ((adapter->flags & IXGBE_FLAG_FCOE_CAPABLE) &&
+                    (!(adapter->flags & IXGBE_FLAG_FCOE_ENABLED))) {
+                        adapter->flags |= IXGBE_FLAG_FCOE_ENABLED;
+                        adapter->ring_feature[RING_F_FCOE].indices =
+                                IXGBE_FCRETA_SIZE;
+                        netdev->features |= NETIF_F_FCOE_CRC;
+                        netdev->features |= NETIF_F_FSO;
+                        netdev->fcoe_ddp_xid = IXGBE_FCOE_DDP_MAX - 1;
+                }
+#endif /* IXGBE_FCOE */
                 ixgbe_init_interrupt_scheme(adapter);
                 if (netif_running(netdev))
                         netdev->netdev_ops->ndo_open(netdev);
@@ -154,6 +166,20 @@ static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
                         adapter->dcb_cfg.pfc_mode_enable = false;
                         adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED;
                         adapter->flags |= IXGBE_FLAG_RSS_ENABLED;
+                        if (adapter->hw.mac.type == ixgbe_mac_82599EB)
+                                adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE;
+
+#ifdef IXGBE_FCOE
+                        /* Turn off FCoE offload */
+                        if (adapter->flags & (IXGBE_FLAG_FCOE_CAPABLE |
+                             IXGBE_FLAG_FCOE_ENABLED)) {
+                                adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED;
+                                adapter->ring_feature[RING_F_FCOE].indices = 0;
+                                netdev->features &= ~NETIF_F_FCOE_CRC;
+                                netdev->features &= ~NETIF_F_FSO;
+                                netdev->fcoe_ddp_xid = 0;
+                        }
+#endif /* IXGBE_FCOE */
                         ixgbe_init_interrupt_scheme(adapter);
                         if (netif_running(netdev))
                                 netdev->netdev_ops->ndo_open(netdev);
@@ -169,6 +195,8 @@ static void ixgbe_dcbnl_get_perm_hw_addr(struct net_device *netdev,
         struct ixgbe_adapter *adapter = netdev_priv(netdev);
         int i, j;
 
+        memset(perm_addr, 0xff, MAX_ADDR_LEN);
+
         for (i = 0; i < netdev->addr_len; i++)
                 perm_addr[i] = adapter->hw.mac.perm_addr[i];
 
diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c
index 86f4f3e36f27..79144e950a34 100644
--- a/drivers/net/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ixgbe/ixgbe_ethtool.c
@@ -139,7 +139,7 @@ static int ixgbe_get_settings(struct net_device *netdev,
         ecmd->autoneg = AUTONEG_ENABLE;
         ecmd->transceiver = XCVR_EXTERNAL;
         if ((hw->phy.media_type == ixgbe_media_type_copper) ||
-            (hw->mac.type == ixgbe_mac_82599EB)) {
+            (hw->phy.multispeed_fiber)) {
                 ecmd->supported |= (SUPPORTED_1000baseT_Full |
                                     SUPPORTED_Autoneg);
 
@@ -217,7 +217,7 @@ static int ixgbe_set_settings(struct net_device *netdev,
         s32 err = 0;
 
         if ((hw->phy.media_type == ixgbe_media_type_copper) ||
-            (hw->mac.type == ixgbe_mac_82599EB)) {
+            (hw->phy.multispeed_fiber)) {
                 /* 10000/copper and 1000/copper must autoneg
                  * this function does not support any duplex forcing, but can
                  * limit the advertising of the adapter to only 10000 or 1000 */
@@ -245,6 +245,7 @@ static int ixgbe_set_settings(struct net_device *netdev,
         } else {
                 /* in this case we currently only support 10Gb/FULL */
                 if ((ecmd->autoneg == AUTONEG_ENABLE) ||
+                    (ecmd->advertising != ADVERTISED_10000baseT_Full) ||
                     (ecmd->speed + ecmd->duplex != SPEED_10000 + DUPLEX_FULL))
                         return -EINVAL;
         }
@@ -1829,7 +1830,6 @@ static int ixgbe_wol_exclusion(struct ixgbe_adapter *adapter,
                 break;
         default:
                 wol->supported = 0;
-                retval = 0;
         }
 
         return retval;
@@ -1975,7 +1975,10 @@ static int ixgbe_set_coalesce(struct net_device *netdev,
                  * any other value means disable eitr, which is best
                  * served by setting the interrupt rate very high
                  */
-                adapter->eitr_param = IXGBE_MAX_INT_RATE;
+                if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)
+                        adapter->eitr_param = IXGBE_MAX_RSC_INT_RATE;
+                else
+                        adapter->eitr_param = IXGBE_MAX_INT_RATE;
                 adapter->itr_setting = 0;
         }
 
@@ -1999,13 +2002,13 @@ static int ixgbe_set_flags(struct net_device *netdev, u32 data)
 
         ethtool_op_set_flags(netdev, data);
 
-        if (!(adapter->flags & IXGBE_FLAG2_RSC_CAPABLE))
+        if (!(adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE))
                 return 0;
 
         /* if state changes we need to update adapter->flags and reset */
         if ((!!(data & ETH_FLAG_LRO)) != 
-            (!!(adapter->flags & IXGBE_FLAG2_RSC_ENABLED))) {
-                adapter->flags ^= IXGBE_FLAG2_RSC_ENABLED;
+            (!!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED))) {
+                adapter->flags2 ^= IXGBE_FLAG2_RSC_ENABLED;
                 if (netif_running(netdev))
                         ixgbe_reinit_locked(adapter);
                 else
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index e756e220db32..110c65ab5cb5 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -34,6 +34,7 @@
 #include <linux/in.h>
 #include <linux/ip.h>
 #include <linux/tcp.h>
+#include <linux/pkt_sched.h>
 #include <linux/ipv6.h>
 #include <net/checksum.h>
 #include <net/ip6_checksum.h>
@@ -510,8 +511,11 @@ static void ixgbe_receive_skb(struct ixgbe_q_vector *q_vector,
  * @skb: skb currently being received and modified
  **/
 static inline void ixgbe_rx_checksum(struct ixgbe_adapter *adapter,
-                                     u32 status_err, struct sk_buff *skb)
+                                     union ixgbe_adv_rx_desc *rx_desc,
+                                     struct sk_buff *skb)
 {
+        u32 status_err = le32_to_cpu(rx_desc->wb.upper.status_error);
+
         skb->ip_summed = CHECKSUM_NONE;
 
         /* Rx csum disabled */
@@ -529,6 +533,16 @@ static inline void ixgbe_rx_checksum(struct ixgbe_adapter *adapter,
                 return;
 
         if (status_err & IXGBE_RXDADV_ERR_TCPE) {
+                u16 pkt_info = rx_desc->wb.lower.lo_dword.hs_rss.pkt_info;
+
+                /*
+                 * 82599 errata, UDP frames with a 0 checksum can be marked as
+                 * checksum errors.
+                 */
+                if ((pkt_info & IXGBE_RXDADV_PKTTYPE_UDP) &&
+                    (adapter->hw.mac.type == ixgbe_mac_82599EB))
+                        return;
+
                 adapter->hw_csum_rx_error++;
                 return;
         }
@@ -563,7 +577,6 @@ static void ixgbe_alloc_rx_buffers(struct ixgbe_adapter *adapter,
         union ixgbe_adv_rx_desc *rx_desc;
         struct ixgbe_rx_buffer *bi;
         unsigned int i;
-        unsigned int bufsz = rx_ring->rx_buf_len + NET_IP_ALIGN;
 
         i = rx_ring->next_to_use;
         bi = &rx_ring->rx_buffer_info[i];
@@ -593,7 +606,9 @@ static void ixgbe_alloc_rx_buffers(struct ixgbe_adapter *adapter,
 
                 if (!bi->skb) {
                         struct sk_buff *skb;
-                        skb = netdev_alloc_skb(adapter->netdev, bufsz);
+                        skb = netdev_alloc_skb(adapter->netdev,
+                                               (rx_ring->rx_buf_len +
+                                                NET_IP_ALIGN));
 
                         if (!skb) {
                                 adapter->alloc_rx_buff_failed++;
@@ -608,7 +623,8 @@ static void ixgbe_alloc_rx_buffers(struct ixgbe_adapter *adapter,
                         skb_reserve(skb, NET_IP_ALIGN);
 
                         bi->skb = skb;
-                        bi->dma = pci_map_single(pdev, skb->data, bufsz,
+                        bi->dma = pci_map_single(pdev, skb->data,
+                                                 rx_ring->rx_buf_len,
                                                  PCI_DMA_FROMDEVICE);
                 }
                 /* Refresh the desc even if buffer_addrs didn't change because
@@ -732,6 +748,7 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
                         pci_unmap_single(pdev, rx_buffer_info->dma,
                                          rx_ring->rx_buf_len,
                                          PCI_DMA_FROMDEVICE);
+                        rx_buffer_info->dma = 0;
                         skb_put(skb, len);
                 }
 
@@ -763,7 +780,7 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
                 prefetch(next_rxd);
                 cleaned_count++;
 
-                if (adapter->flags & IXGBE_FLAG2_RSC_CAPABLE)
+                if (adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE)
                         rsc_count = ixgbe_get_rsc_count(rx_desc);
 
                 if (rsc_count) {
@@ -799,7 +816,7 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
                         goto next_desc;
                 }
 
-                ixgbe_rx_checksum(adapter, staterr, skb);
+                ixgbe_rx_checksum(adapter, rx_desc, skb);
 
                 /* probably a little skewed due to removing CRC */
                 total_rx_bytes += skb->len;
@@ -2019,7 +2036,7 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter)
                         IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(0), psrtype);
                 }
         } else {
-                if (!(adapter->flags & IXGBE_FLAG2_RSC_ENABLED) &&
+                if (!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) &&
                     (netdev->mtu <= ETH_DATA_LEN))
                         rx_buf_len = MAXIMUM_ETHERNET_VLAN_SIZE;
                 else
@@ -2148,7 +2165,7 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter)
                 IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, rdrxctl);
         }
 
-        if (adapter->flags & IXGBE_FLAG2_RSC_ENABLED) {
+        if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) {
                 /* Enable 82599 HW-RSC */
                 for (i = 0; i < adapter->num_rx_queues; i++) {
                         j = adapter->rx_ring[i].reg_idx;
@@ -2694,16 +2711,23 @@ static int ixgbe_up_complete(struct ixgbe_adapter *adapter)
 
         /*
          * For hot-pluggable SFP+ devices, a new SFP+ module may have
-         * arrived before interrupts were enabled.  We need to kick off
-         * the SFP+ module setup first, then try to bring up link.
+         * arrived before interrupts were enabled but after probe.  Such
+         * devices wouldn't have their type identified yet. We need to
+         * kick off the SFP+ module setup first, then try to bring up link.
          * If we're not hot-pluggable SFP+, we just need to configure link
          * and bring it up.
          */
-        err = hw->phy.ops.identify(hw);
-        if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) {
-                DPRINTK(PROBE, ERR, "PHY not supported on this NIC %d\n", err);
-                ixgbe_down(adapter);
-                return err;
+        if (hw->phy.type == ixgbe_phy_unknown) {
+                err = hw->phy.ops.identify(hw);
+                if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) {
+                        /*
+                         * Take the device down and schedule the sfp tasklet
+                         * which will unregister_netdev and log it.
+                         */
+                        ixgbe_down(adapter);
+                        schedule_work(&adapter->sfp_config_module_task);
+                        return err;
+                }
         }
 
         if (ixgbe_is_sfp(hw)) {
@@ -2812,9 +2836,11 @@ static void ixgbe_clean_rx_ring(struct ixgbe_adapter *adapter,
                 }
                 if (!rx_buffer_info->page)
                         continue;
-                pci_unmap_page(pdev, rx_buffer_info->page_dma, PAGE_SIZE / 2,
-                               PCI_DMA_FROMDEVICE);
-                rx_buffer_info->page_dma = 0;
+                if (rx_buffer_info->page_dma) {
+                        pci_unmap_page(pdev, rx_buffer_info->page_dma,
+                                       PAGE_SIZE / 2, PCI_DMA_FROMDEVICE);
+                        rx_buffer_info->page_dma = 0;
+                }
                 put_page(rx_buffer_info->page);
                 rx_buffer_info->page = NULL;
                 rx_buffer_info->page_offset = 0;
@@ -3118,7 +3144,11 @@ static inline bool ixgbe_set_fcoe_queues(struct ixgbe_adapter *adapter)
 #endif
                 if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) {
                         DPRINTK(PROBE, INFO, "FCOE enabled with RSS \n");
-                        ixgbe_set_rss_queues(adapter);
+                        if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) ||
+                            (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE))
+                                ixgbe_set_fdir_queues(adapter);
+                        else
+                                ixgbe_set_rss_queues(adapter);
                 }
                 /* adding FCoE rx rings to the end */
                 f->mask = adapter->num_rx_queues;
@@ -3376,7 +3406,12 @@ static inline bool ixgbe_cache_ring_fcoe(struct ixgbe_adapter *adapter)
                 }
 #endif /* CONFIG_IXGBE_DCB */
                 if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) {
-                        ixgbe_cache_ring_rss(adapter);
+                        if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) ||
+                            (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE))
+                                ixgbe_cache_ring_fdir(adapter);
+                        else
+                                ixgbe_cache_ring_rss(adapter);
+
                         fcoe_i = f->mask;
                 }
                 for (i = 0; i < f->indices; i++, fcoe_i++)
@@ -3716,14 +3751,15 @@ static void ixgbe_sfp_task(struct work_struct *work)
         if ((hw->phy.type == ixgbe_phy_nl) &&
             (hw->phy.sfp_type == ixgbe_sfp_type_not_present)) {
                 s32 ret = hw->phy.ops.identify_sfp(hw);
-                if (ret)
+                if (ret == IXGBE_ERR_SFP_NOT_PRESENT)
                         goto reschedule;
                 ret = hw->phy.ops.reset(hw);
                 if (ret == IXGBE_ERR_SFP_NOT_SUPPORTED) {
-                        DPRINTK(PROBE, ERR, "failed to initialize because an "
-                                "unsupported SFP+ module type was detected.\n"
-                                "Reload the driver after installing a "
-                                "supported module.\n");
+                        dev_err(&adapter->pdev->dev, "failed to initialize "
+                                "because an unsupported SFP+ module type "
+                                "was detected.\n"
+                                "Reload the driver after installing a "
+                                "supported module.\n");
                         unregister_netdev(adapter->netdev);
                 } else {
                         DPRINTK(PROBE, INFO, "detected SFP+: %d\n",
@@ -3776,16 +3812,17 @@ static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter)
                 adapter->max_msix_q_vectors = MAX_MSIX_Q_VECTORS_82598;
         } else if (hw->mac.type == ixgbe_mac_82599EB) {
                 adapter->max_msix_q_vectors = MAX_MSIX_Q_VECTORS_82599;
-                adapter->flags |= IXGBE_FLAG2_RSC_CAPABLE;
-                adapter->flags |= IXGBE_FLAG2_RSC_ENABLED;
+                adapter->flags2 |= IXGBE_FLAG2_RSC_CAPABLE;
+                adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED;
                 adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE;
                 adapter->ring_feature[RING_F_FDIR].indices =
                                                          IXGBE_MAX_FDIR_INDICES;
                 adapter->atr_sample_rate = 20;
                 adapter->fdir_pballoc = 0;
 #ifdef IXGBE_FCOE
-                adapter->flags |= IXGBE_FLAG_FCOE_ENABLED;
-                adapter->ring_feature[RING_F_FCOE].indices = IXGBE_FCRETA_SIZE;
+                adapter->flags |= IXGBE_FLAG_FCOE_CAPABLE;
+                adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED;
+                adapter->ring_feature[RING_F_FCOE].indices = 0;
 #endif /* IXGBE_FCOE */
         }
 
@@ -4502,7 +4539,8 @@ static void ixgbe_multispeed_fiber_task(struct work_struct *work)
         u32 autoneg;
 
         adapter->flags |= IXGBE_FLAG_IN_SFP_LINK_TASK;
-        if (hw->mac.ops.get_link_capabilities)
+        autoneg = hw->phy.autoneg_advertised;
+        if ((!autoneg) && (hw->mac.ops.get_link_capabilities))
                 hw->mac.ops.get_link_capabilities(hw, &autoneg,
                                                   &hw->mac.autoneg);
         if (hw->mac.ops.setup_link_speed)
@@ -4524,10 +4562,17 @@ static void ixgbe_sfp_config_module_task(struct work_struct *work)
         u32 err;
 
         adapter->flags |= IXGBE_FLAG_IN_SFP_MOD_TASK;
+
+        /* Time for electrical oscillations to settle down */
+        msleep(100);
         err = hw->phy.ops.identify_sfp(hw);
+
         if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) {
-                DPRINTK(PROBE, ERR, "PHY not supported on this NIC %d\n", err);
-                ixgbe_down(adapter);
+                dev_err(&adapter->pdev->dev, "failed to initialize because "
+                        "an unsupported SFP+ module type was detected.\n"
+                        "Reload the driver after installing a supported "
+                        "module.\n");
+                unregister_netdev(adapter->netdev);
                 return;
         }
         hw->mac.ops.setup_sfp(hw);
@@ -5095,9 +5140,6 @@ static int ixgbe_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
         int count = 0;
         unsigned int f;
 
-        r_idx = skb->queue_mapping;
-        tx_ring = &adapter->tx_ring[r_idx];
-
         if (adapter->vlgrp && vlan_tx_tag_present(skb)) {
                 tx_flags |= vlan_tx_tag_get(skb);
                 if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
@@ -5107,11 +5149,19 @@ static int ixgbe_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
                 tx_flags <<= IXGBE_TX_FLAGS_VLAN_SHIFT;
                 tx_flags |= IXGBE_TX_FLAGS_VLAN;
         } else if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
-                tx_flags |= (skb->queue_mapping << 13);
-                tx_flags <<= IXGBE_TX_FLAGS_VLAN_SHIFT;
-                tx_flags |= IXGBE_TX_FLAGS_VLAN;
+                if (skb->priority != TC_PRIO_CONTROL) {
+                        tx_flags |= (skb->queue_mapping << 13);
+                        tx_flags <<= IXGBE_TX_FLAGS_VLAN_SHIFT;
+                        tx_flags |= IXGBE_TX_FLAGS_VLAN;
+                } else {
+                        skb->queue_mapping =
+                                adapter->ring_feature[RING_F_DCB].indices-1;
+                }
         }
 
+        r_idx = skb->queue_mapping;
+        tx_ring = &adapter->tx_ring[r_idx];
+
         if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) &&
             (skb->protocol == htons(ETH_P_FCOE)))
                 tx_flags |= IXGBE_TX_FLAGS_FCOE;
@@ -5310,12 +5360,19 @@ static int ixgbe_del_sanmac_netdev(struct net_device *dev)
 static void ixgbe_netpoll(struct net_device *netdev)
 {
         struct ixgbe_adapter *adapter = netdev_priv(netdev);
+        int i;
 
-        disable_irq(adapter->pdev->irq);
         adapter->flags |= IXGBE_FLAG_IN_NETPOLL;
-        ixgbe_intr(adapter->pdev->irq, netdev);
+        if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
+                int num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
+                for (i = 0; i < num_q_vectors; i++) {
+                        struct ixgbe_q_vector *q_vector = adapter->q_vector[i];
+                        ixgbe_msix_clean_many(0, q_vector);
+                }
+        } else {
+                ixgbe_intr(adapter->pdev->irq, netdev);
+        }
         adapter->flags &= ~IXGBE_FLAG_IN_NETPOLL;
-        enable_irq(adapter->pdev->irq);
 }
 #endif
 
@@ -5513,8 +5570,10 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
                           round_jiffies(jiffies + (2 * HZ)));
                 err = 0;
         } else if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) {
-                dev_err(&adapter->pdev->dev, "failed to load because an "
-                        "unsupported SFP+ module type was detected.\n");
+                dev_err(&adapter->pdev->dev, "failed to initialize because "
+                        "an unsupported SFP+ module type was detected.\n"
+                        "Reload the driver after installing a supported "
+                        "module.\n");
                 goto err_sw_init;
         } else if (err) {
                 dev_err(&adapter->pdev->dev, "HW Init failed: %d\n", err);
@@ -5548,29 +5607,18 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
 #endif
 
 #ifdef IXGBE_FCOE
-        if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) {
+        if (adapter->flags & IXGBE_FLAG_FCOE_CAPABLE) {
                 if (hw->mac.ops.get_device_caps) {
                         hw->mac.ops.get_device_caps(hw, &device_caps);
-                        if (!(device_caps & IXGBE_DEVICE_CAPS_FCOE_OFFLOADS)) {
-                                netdev->features |= NETIF_F_FCOE_CRC;
-                                netdev->features |= NETIF_F_FSO;
-                                netdev->fcoe_ddp_xid = IXGBE_FCOE_DDP_MAX - 1;
-                                DPRINTK(DRV, INFO, "FCoE enabled, "
-                                        "disabling Flow Director\n");
-                                adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE;
-                                adapter->flags &=
-                                        ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE;
-                                adapter->atr_sample_rate = 0;
-                        } else {
-                                adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED;
-                        }
+                        if (device_caps & IXGBE_DEVICE_CAPS_FCOE_OFFLOADS)
+                                adapter->flags &= ~IXGBE_FLAG_FCOE_CAPABLE;
                 }
         }
 #endif /* IXGBE_FCOE */
         if (pci_using_dac)
                 netdev->features |= NETIF_F_HIGHDMA;
 
-        if (adapter->flags & IXGBE_FLAG2_RSC_ENABLED)
+        if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)
                 netdev->features |= NETIF_F_LRO;
 
         /* make sure the EEPROM is good */
@@ -5612,7 +5660,6 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
                 adapter->wol = 0;
                 break;
         }
-        device_init_wakeup(&adapter->pdev->dev, true);
         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
 
         /* pick up the PCI bus settings for reporting later */
diff --git a/drivers/net/ixgbe/ixgbe_phy.c b/drivers/net/ixgbe/ixgbe_phy.c
index 453e966762f0..9ecad17522c3 100644
--- a/drivers/net/ixgbe/ixgbe_phy.c
+++ b/drivers/net/ixgbe/ixgbe_phy.c
@@ -60,6 +60,7 @@ s32 ixgbe_identify_phy_generic(struct ixgbe_hw *hw)
 
         if (hw->phy.type == ixgbe_phy_unknown) {
                 for (phy_addr = 0; phy_addr < IXGBE_MAX_PHY_ADDR; phy_addr++) {
+                        hw->phy.mdio.prtad = phy_addr;
                         if (mdio45_probe(&hw->phy.mdio, phy_addr) == 0) {
                                 ixgbe_get_phy_id(hw);
                                 hw->phy.type =
@@ -68,6 +69,8 @@ s32 ixgbe_identify_phy_generic(struct ixgbe_hw *hw)
                                 break;
                         }
                 }
+                /* clear value if nothing found */
+                hw->phy.mdio.prtad = 0;
         } else {
                 status = 0;
         }
diff --git a/drivers/net/ixgbe/ixgbe_type.h b/drivers/net/ixgbe/ixgbe_type.h
index fa87309dc087..be90eb4575f6 100644
--- a/drivers/net/ixgbe/ixgbe_type.h
+++ b/drivers/net/ixgbe/ixgbe_type.h
@@ -718,6 +718,12 @@
 #define IXGBE_ECC_STATUS_82599  0x110E0
 #define IXGBE_BAR_CTRL_82599    0x110F4
 
+/* PCI Express Control */
+#define IXGBE_GCR_CMPL_TMOUT_MASK       0x0000F000
+#define IXGBE_GCR_CMPL_TMOUT_10ms       0x00001000
+#define IXGBE_GCR_CMPL_TMOUT_RESEND     0x00010000
+#define IXGBE_GCR_CAP_VER2              0x00040000
+
 /* Time Sync Registers */
 #define IXGBE_TSYNCRXCTL 0x05188 /* Rx Time Sync Control register - RW */
 #define IXGBE_TSYNCTXCTL 0x08C00 /* Tx Time Sync Control register - RW */
@@ -1521,6 +1527,7 @@
 
 /* PCI Bus Info */
 #define IXGBE_PCI_LINK_STATUS     0xB2
+#define IXGBE_PCI_DEVICE_CONTROL2 0xC8
 #define IXGBE_PCI_LINK_WIDTH      0x3F0
 #define IXGBE_PCI_LINK_WIDTH_1    0x10
 #define IXGBE_PCI_LINK_WIDTH_2    0x20
@@ -1531,6 +1538,7 @@
 #define IXGBE_PCI_LINK_SPEED_5000 0x2
 #define IXGBE_PCI_HEADER_TYPE_REGISTER  0x0E
 #define IXGBE_PCI_HEADER_TYPE_MULTIFUNC 0x80
+#define IXGBE_PCI_DEVICE_CONTROL2_16ms  0x0005
 
 /* Number of 100 microseconds we wait for PCI Express master disable */
 #define IXGBE_PCI_MASTER_DISABLE_TIMEOUT 800
diff --git a/drivers/net/jazzsonic.c b/drivers/net/jazzsonic.c
index d12106b47bf2..2f286091394d 100644
--- a/drivers/net/jazzsonic.c
+++ b/drivers/net/jazzsonic.c
@@ -229,6 +229,7 @@ static int __init jazz_sonic_probe(struct platform_device *pdev)
         lp = netdev_priv(dev);
         lp->device = &pdev->dev;
         SET_NETDEV_DEV(dev, &pdev->dev);
+        platform_set_drvdata(pdev, dev);
 
         netdev_boot_setup_check(dev);
 
diff --git a/drivers/net/ks8851.c b/drivers/net/ks8851.c
new file mode 100644
index 000000000000..9a1dea60c1c4
--- /dev/null
+++ b/drivers/net/ks8851.c
@@ -0,0 +1,1322 @@
+/* drivers/net/ks8651.c
+ *
+ * Copyright 2009 Simtec Electronics
+ *      http://www.simtec.co.uk/
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#define DEBUG
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/cache.h>
+#include <linux/crc32.h>
+#include <linux/mii.h>
+
+#include <linux/spi/spi.h>
+
+#include "ks8851.h"
+
+/**
+ * struct ks8851_rxctrl - KS8851 driver rx control
+ * @mchash: Multicast hash-table data.
+ * @rxcr1: KS_RXCR1 register setting
+ * @rxcr2: KS_RXCR2 register setting
+ *
+ * Representation of the settings needs to control the receive filtering
+ * such as the multicast hash-filter and the receive register settings. This
+ * is used to make the job of working out if the receive settings change and
+ * then issuing the new settings to the worker that will send the necessary
+ * commands.
+ */
+struct ks8851_rxctrl {
+        u16     mchash[4];
+        u16     rxcr1;
+        u16     rxcr2;
+};
+
+/**
+ * union ks8851_tx_hdr - tx header data
+ * @txb: The header as bytes
+ * @txw: The header as 16bit, little-endian words
+ *
+ * A dual representation of the tx header data to allow
+ * access to individual bytes, and to allow 16bit accesses
+ * with 16bit alignment.
+ */
+union ks8851_tx_hdr {
+        u8      txb[6];
+        __le16  txw[3];
+};
+
+/**
+ * struct ks8851_net - KS8851 driver private data
+ * @netdev: The network device we're bound to
+ * @spidev: The spi device we're bound to.
+ * @lock: Lock to ensure that the device is not accessed when busy.
+ * @statelock: Lock on this structure for tx list.
+ * @mii: The MII state information for the mii calls.
+ * @rxctrl: RX settings for @rxctrl_work.
+ * @tx_work: Work queue for tx packets
+ * @irq_work: Work queue for servicing interrupts
+ * @rxctrl_work: Work queue for updating RX mode and multicast lists
+ * @txq: Queue of packets for transmission.
+ * @spi_msg1: pre-setup SPI transfer with one message, @spi_xfer1.
+ * @spi_msg2: pre-setup SPI transfer with two messages, @spi_xfer2.
+ * @txh: Space for generating packet TX header in DMA-able data
+ * @rxd: Space for receiving SPI data, in DMA-able space.
+ * @txd: Space for transmitting SPI data, in DMA-able space.
+ * @msg_enable: The message flags controlling driver output (see ethtool).
+ * @fid: Incrementing frame id tag.
+ * @rc_ier: Cached copy of KS_IER.
+ * @rc_rxqcr: Cached copy of KS_RXQCR.
+ *
+ * The @lock ensures that the chip is protected when certain operations are
+ * in progress. When the read or write packet transfer is in progress, most
+ * of the chip registers are not ccessible until the transfer is finished and
+ * the DMA has been de-asserted.
+ *
+ * The @statelock is used to protect information in the structure which may
+ * need to be accessed via several sources, such as the network driver layer
+ * or one of the work queues.
+ *
+ * We align the buffers we may use for rx/tx to ensure that if the SPI driver
+ * wants to DMA map them, it will not have any problems with data the driver
+ * modifies.
+ */
+struct ks8851_net {
+        struct net_device       *netdev;
+        struct spi_device       *spidev;
+        struct mutex            lock;
+        spinlock_t              statelock;
+
+        union ks8851_tx_hdr     txh ____cacheline_aligned;
+        u8                      rxd[8];
+        u8                      txd[8];
+
+        u32                     msg_enable ____cacheline_aligned;
+        u16                     tx_space;
+        u8                      fid;
+
+        u16                     rc_ier;
+        u16                     rc_rxqcr;
+
+        struct mii_if_info      mii;
+        struct ks8851_rxctrl    rxctrl;
+
+        struct work_struct      tx_work;
+        struct work_struct      irq_work;
+        struct work_struct      rxctrl_work;
+
+        struct sk_buff_head     txq;
+
+        struct spi_message      spi_msg1;
+        struct spi_message      spi_msg2;
+        struct spi_transfer     spi_xfer1;
+        struct spi_transfer     spi_xfer2[2];
+};
+
+static int msg_enable;
+
+#define ks_info(_ks, _msg...) dev_info(&(_ks)->spidev->dev, _msg)
+#define ks_warn(_ks, _msg...) dev_warn(&(_ks)->spidev->dev, _msg)
+#define ks_dbg(_ks, _msg...) dev_dbg(&(_ks)->spidev->dev, _msg)
+#define ks_err(_ks, _msg...) dev_err(&(_ks)->spidev->dev, _msg)
+
+/* shift for byte-enable data */
+#define BYTE_EN(_x)     ((_x) << 2)
+
+/* turn register number and byte-enable mask into data for start of packet */
+#define MK_OP(_byteen, _reg) (BYTE_EN(_byteen) | (_reg)  << (8+2) | (_reg) >> 6)
+
+/* SPI register read/write calls.
+ *
+ * All these calls issue SPI transactions to access the chip's registers. They
+ * all require that the necessary lock is held to prevent accesses when the
+ * chip is busy transfering packet data (RX/TX FIFO accesses).
+ */
+
+/**
+ * ks8851_wrreg16 - write 16bit register value to chip
+ * @ks: The chip state
+ * @reg: The register address
+ * @val: The value to write
+ *
+ * Issue a write to put the value @val into the register specified in @reg.
+ */
+static void ks8851_wrreg16(struct ks8851_net *ks, unsigned reg, unsigned val)
+{
+        struct spi_transfer *xfer = &ks->spi_xfer1;
+        struct spi_message *msg = &ks->spi_msg1;
+        __le16 txb[2];
+        int ret;
+
+        txb[0] = cpu_to_le16(MK_OP(reg & 2 ? 0xC : 0x03, reg) | KS_SPIOP_WR);
+        txb[1] = cpu_to_le16(val);
+
+        xfer->tx_buf = txb;
+        xfer->rx_buf = NULL;
+        xfer->len = 4;
+
+        ret = spi_sync(ks->spidev, msg);
+        if (ret < 0)
+                ks_err(ks, "spi_sync() failed\n");
+}
+
+/**
+ * ks8851_rx_1msg - select whether to use one or two messages for spi read
+ * @ks: The device structure
+ *
+ * Return whether to generate a single message with a tx and rx buffer
+ * supplied to spi_sync(), or alternatively send the tx and rx buffers
+ * as separate messages.
+ *
+ * Depending on the hardware in use, a single message may be more efficient
+ * on interrupts or work done by the driver.
+ *
+ * This currently always returns true until we add some per-device data passed
+ * from the platform code to specify which mode is better.
+ */
+static inline bool ks8851_rx_1msg(struct ks8851_net *ks)
+{
+        return true;
+}
+
+/**
+ * ks8851_rdreg - issue read register command and return the data
+ * @ks: The device state
+ * @op: The register address and byte enables in message format.
+ * @rxb: The RX buffer to return the result into
+ * @rxl: The length of data expected.
+ *
+ * This is the low level read call that issues the necessary spi message(s)
+ * to read data from the register specified in @op.
+ */
+static void ks8851_rdreg(struct ks8851_net *ks, unsigned op,
+                         u8 *rxb, unsigned rxl)
+{
+        struct spi_transfer *xfer;
+        struct spi_message *msg;
+        __le16 *txb = (__le16 *)ks->txd;
+        u8 *trx = ks->rxd;
+        int ret;
+
+        txb[0] = cpu_to_le16(op | KS_SPIOP_RD);
+
+        if (ks8851_rx_1msg(ks)) {
+                msg = &ks->spi_msg1;
+                xfer = &ks->spi_xfer1;
+
+                xfer->tx_buf = txb;
+                xfer->rx_buf = trx;
+                xfer->len = rxl + 2;
+        } else {
+                msg = &ks->spi_msg2;
+                xfer = ks->spi_xfer2;
+
+                xfer->tx_buf = txb;
+                xfer->rx_buf = NULL;
+                xfer->len = 2;
+
+                xfer++;
+                xfer->tx_buf = NULL;
+                xfer->rx_buf = trx;
+                xfer->len = rxl;
+        }
+
+        ret = spi_sync(ks->spidev, msg);
+        if (ret < 0)
+                ks_err(ks, "read: spi_sync() failed\n");
+        else if (ks8851_rx_1msg(ks))
+                memcpy(rxb, trx + 2, rxl);
+        else
+                memcpy(rxb, trx, rxl);
+}
+
+/**
+ * ks8851_rdreg8 - read 8 bit register from device
+ * @ks: The chip information
+ * @reg: The register address
+ *
+ * Read a 8bit register from the chip, returning the result
+*/
+static unsigned ks8851_rdreg8(struct ks8851_net *ks, unsigned reg)
+{
+        u8 rxb[1];
+
+        ks8851_rdreg(ks, MK_OP(1 << (reg & 3), reg), rxb, 1);
+        return rxb[0];
+}
+
+/**
+ * ks8851_rdreg16 - read 16 bit register from device
+ * @ks: The chip information
+ * @reg: The register address
+ *
+ * Read a 16bit register from the chip, returning the result
+*/
+static unsigned ks8851_rdreg16(struct ks8851_net *ks, unsigned reg)
+{
+        __le16 rx = 0;
+
+        ks8851_rdreg(ks, MK_OP(reg & 2 ? 0xC : 0x3, reg), (u8 *)&rx, 2);
+        return le16_to_cpu(rx);
+}
+
+/**
+ * ks8851_rdreg32 - read 32 bit register from device
+ * @ks: The chip information
+ * @reg: The register address
+ *
+ * Read a 32bit register from the chip.
+ *
+ * Note, this read requires the address be aligned to 4 bytes.
+*/
+static unsigned ks8851_rdreg32(struct ks8851_net *ks, unsigned reg)
+{
+        __le32 rx = 0;
+
+        WARN_ON(reg & 3);
+
+        ks8851_rdreg(ks, MK_OP(0xf, reg), (u8 *)&rx, 4);
+        return le32_to_cpu(rx);
+}
+
+/**
+ * ks8851_soft_reset - issue one of the soft reset to the device
+ * @ks: The device state.
+ * @op: The bit(s) to set in the GRR
+ *
+ * Issue the relevant soft-reset command to the device's GRR register
+ * specified by @op.
+ *
+ * Note, the delays are in there as a caution to ensure that the reset
+ * has time to take effect and then complete. Since the datasheet does
+ * not currently specify the exact sequence, we have chosen something
+ * that seems to work with our device.
+ */
+static void ks8851_soft_reset(struct ks8851_net *ks, unsigned op)
+{
+        ks8851_wrreg16(ks, KS_GRR, op);
+        mdelay(1);      /* wait a short time to effect reset */
+        ks8851_wrreg16(ks, KS_GRR, 0);
+        mdelay(1);      /* wait for condition to clear */
+}
+
+/**
+ * ks8851_write_mac_addr - write mac address to device registers
+ * @dev: The network device
+ *
+ * Update the KS8851 MAC address registers from the address in @dev.
+ *
+ * This call assumes that the chip is not running, so there is no need to
+ * shutdown the RXQ process whilst setting this.
+*/
+static int ks8851_write_mac_addr(struct net_device *dev)
+{
+        struct ks8851_net *ks = netdev_priv(dev);
+        u16 *mcp = (u16 *)dev->dev_addr;
+
+        mutex_lock(&ks->lock);
+
+        ks8851_wrreg16(ks, KS_MARL, mcp[0]);
+        ks8851_wrreg16(ks, KS_MARM, mcp[1]);
+        ks8851_wrreg16(ks, KS_MARH, mcp[2]);
+
+        mutex_unlock(&ks->lock);
+
+        return 0;
+}
+
+/**
+ * ks8851_init_mac - initialise the mac address
+ * @ks: The device structure
+ *
+ * Get or create the initial mac address for the device and then set that
+ * into the station address register. Currently we assume that the device
+ * does not have a valid mac address in it, and so we use random_ether_addr()
+ * to create a new one.
+ *
+ * In future, the driver should check to see if the device has an EEPROM
+ * attached and whether that has a valid ethernet address in it.
+ */
+static void ks8851_init_mac(struct ks8851_net *ks)
+{
+        struct net_device *dev = ks->netdev;
+
+        random_ether_addr(dev->dev_addr);
+        ks8851_write_mac_addr(dev);
+}
+
+/**
+ * ks8851_irq - device interrupt handler
+ * @irq: Interrupt number passed from the IRQ hnalder.
+ * @pw: The private word passed to register_irq(), our struct ks8851_net.
+ *
+ * Disable the interrupt from happening again until we've processed the
+ * current status by scheduling ks8851_irq_work().
+ */
+static irqreturn_t ks8851_irq(int irq, void *pw)
+{
+        struct ks8851_net *ks = pw;
+
+        disable_irq_nosync(irq);
+        schedule_work(&ks->irq_work);
+        return IRQ_HANDLED;
+}
+
+/**
+ * ks8851_rdfifo - read data from the receive fifo
+ * @ks: The device state.
+ * @buff: The buffer address
+ * @len: The length of the data to read
+ *
+ * Issue an RXQ FIFO read command and read the @len ammount of data from
+ * the FIFO into the buffer specified by @buff.
+ */
+static void ks8851_rdfifo(struct ks8851_net *ks, u8 *buff, unsigned len)
+{
+        struct spi_transfer *xfer = ks->spi_xfer2;
+        struct spi_message *msg = &ks->spi_msg2;
+        u8 txb[1];
+        int ret;
+
+        if (netif_msg_rx_status(ks))
+                ks_dbg(ks, "%s: %d@%p\n", __func__, len, buff);
+
+        /* set the operation we're issuing */
+        txb[0] = KS_SPIOP_RXFIFO;
+
+        xfer->tx_buf = txb;
+        xfer->rx_buf = NULL;
+        xfer->len = 1;
+
+        xfer++;
+        xfer->rx_buf = buff;
+        xfer->tx_buf = NULL;
+        xfer->len = len;
+
+        ret = spi_sync(ks->spidev, msg);
+        if (ret < 0)
+                ks_err(ks, "%s: spi_sync() failed\n", __func__);
+}
+
+/**
+ * ks8851_dbg_dumpkkt - dump initial packet contents to debug
+ * @ks: The device state
+ * @rxpkt: The data for the received packet
+ *
+ * Dump the initial data from the packet to dev_dbg().
+*/
+static void ks8851_dbg_dumpkkt(struct ks8851_net *ks, u8 *rxpkt)
+{
+        ks_dbg(ks, "pkt %02x%02x%02x%02x %02x%02x%02x%02x %02x%02x%02x%02x\n",
+               rxpkt[4], rxpkt[5], rxpkt[6], rxpkt[7],
+               rxpkt[8], rxpkt[9], rxpkt[10], rxpkt[11],
+               rxpkt[12], rxpkt[13], rxpkt[14], rxpkt[15]);
+}
+
+/**
+ * ks8851_rx_pkts - receive packets from the host
+ * @ks: The device information.
+ *
+ * This is called from the IRQ work queue when the system detects that there
+ * are packets in the receive queue. Find out how many packets there are and
+ * read them from the FIFO.
+ */
+static void ks8851_rx_pkts(struct ks8851_net *ks)
+{
+        struct sk_buff *skb;
+        unsigned rxfc;
+        unsigned rxlen;
+        unsigned rxstat;
+        u32 rxh;
+        u8 *rxpkt;
+
+        rxfc = ks8851_rdreg8(ks, KS_RXFC);
+
+        if (netif_msg_rx_status(ks))
+                ks_dbg(ks, "%s: %d packets\n", __func__, rxfc);
+
+        /* Currently we're issuing a read per packet, but we could possibly
+         * improve the code by issuing a single read, getting the receive
+         * header, allocating the packet and then reading the packet data
+         * out in one go.
+         *
+         * This form of operation would require us to hold the SPI bus'
+         * chipselect low during the entie transaction to avoid any
+         * reset to the data stream comming from the chip.
+         */
+
+        for (; rxfc != 0; rxfc--) {
+                rxh = ks8851_rdreg32(ks, KS_RXFHSR);
+                rxstat = rxh & 0xffff;
+                rxlen = rxh >> 16;
+
+                if (netif_msg_rx_status(ks))
+                        ks_dbg(ks, "rx: stat 0x%04x, len 0x%04x\n",
+                                rxstat, rxlen);
+
+                /* the length of the packet includes the 32bit CRC */
+
+                /* set dma read address */
+                ks8851_wrreg16(ks, KS_RXFDPR, RXFDPR_RXFPAI | 0x00);
+
+                /* start the packet dma process, and set auto-dequeue rx */
+                ks8851_wrreg16(ks, KS_RXQCR,
+                               ks->rc_rxqcr | RXQCR_SDA | RXQCR_ADRFE);
+
+                if (rxlen > 0) {
+                        skb = netdev_alloc_skb(ks->netdev, rxlen + 2 + 8);
+                        if (!skb) {
+                                /* todo - dump frame and move on */
+                        }
+
+                        /* two bytes to ensure ip is aligned, and four bytes
+                         * for the status header and 4 bytes of garbage */
+                        skb_reserve(skb, 2 + 4 + 4);
+
+                        rxpkt = skb_put(skb, rxlen - 4) - 8;
+
+                        /* align the packet length to 4 bytes, and add 4 bytes
+                         * as we're getting the rx status header as well */
+                        ks8851_rdfifo(ks, rxpkt, ALIGN(rxlen, 4) + 8);
+
+                        if (netif_msg_pktdata(ks))
+                                ks8851_dbg_dumpkkt(ks, rxpkt);
+
+                        skb->protocol = eth_type_trans(skb, ks->netdev);
+                        netif_rx(skb);
+
+                        ks->netdev->stats.rx_packets++;
+                        ks->netdev->stats.rx_bytes += rxlen - 4;
+                }
+
+                ks8851_wrreg16(ks, KS_RXQCR, ks->rc_rxqcr);
+        }
+}
+
+/**
+ * ks8851_irq_work - work queue handler for dealing with interrupt requests
+ * @work: The work structure that was scheduled by schedule_work()
+ *
+ * This is the handler invoked when the ks8851_irq() is called to find out
+ * what happened, as we cannot allow ourselves to sleep whilst waiting for
+ * anything other process has the chip's lock.
+ *
+ * Read the interrupt status, work out what needs to be done and then clear
+ * any of the interrupts that are not needed.
+ */
+static void ks8851_irq_work(struct work_struct *work)
+{
+        struct ks8851_net *ks = container_of(work, struct ks8851_net, irq_work);
+        unsigned status;
+        unsigned handled = 0;
+
+        mutex_lock(&ks->lock);
+
+        status = ks8851_rdreg16(ks, KS_ISR);
+
+        if (netif_msg_intr(ks))
+                dev_dbg(&ks->spidev->dev, "%s: status 0x%04x\n",
+                        __func__, status);
+
+        if (status & IRQ_LCI) {
+                /* should do something about checking link status */
+                handled |= IRQ_LCI;
+        }
+
+        if (status & IRQ_LDI) {
+                u16 pmecr = ks8851_rdreg16(ks, KS_PMECR);
+                pmecr &= ~PMECR_WKEVT_MASK;
+                ks8851_wrreg16(ks, KS_PMECR, pmecr | PMECR_WKEVT_LINK);
+
+                handled |= IRQ_LDI;
+        }
+
+        if (status & IRQ_RXPSI)
+                handled |= IRQ_RXPSI;
+
+        if (status & IRQ_TXI) {
+                handled |= IRQ_TXI;
+
+                /* no lock here, tx queue should have been stopped */
+
+                /* update our idea of how much tx space is available to the
+                 * system */
+                ks->tx_space = ks8851_rdreg16(ks, KS_TXMIR);
+
+                if (netif_msg_intr(ks))
+                        ks_dbg(ks, "%s: txspace %d\n", __func__, ks->tx_space);
+        }
+
+        if (status & IRQ_RXI)
+                handled |= IRQ_RXI;
+
+        if (status & IRQ_SPIBEI) {
+                dev_err(&ks->spidev->dev, "%s: spi bus error\n", __func__);
+                handled |= IRQ_SPIBEI;
+        }
+
+        ks8851_wrreg16(ks, KS_ISR, handled);
+
+        if (status & IRQ_RXI) {
+                /* the datasheet says to disable the rx interrupt during
+                 * packet read-out, however we're masking the interrupt
+                 * from the device so do not bother masking just the RX
+                 * from the device. */
+
+                ks8851_rx_pkts(ks);
+        }
+
+        /* if something stopped the rx process, probably due to wanting
+         * to change the rx settings, then do something about restarting
+         * it. */
+        if (status & IRQ_RXPSI) {
+                struct ks8851_rxctrl *rxc = &ks->rxctrl;
+
+                /* update the multicast hash table */
+                ks8851_wrreg16(ks, KS_MAHTR0, rxc->mchash[0]);
+                ks8851_wrreg16(ks, KS_MAHTR1, rxc->mchash[1]);
+                ks8851_wrreg16(ks, KS_MAHTR2, rxc->mchash[2]);
+                ks8851_wrreg16(ks, KS_MAHTR3, rxc->mchash[3]);
+
+                ks8851_wrreg16(ks, KS_RXCR2, rxc->rxcr2);
+                ks8851_wrreg16(ks, KS_RXCR1, rxc->rxcr1);
+        }
+
+        mutex_unlock(&ks->lock);
+
+        if (status & IRQ_TXI)
+                netif_wake_queue(ks->netdev);
+
+        enable_irq(ks->netdev->irq);
+}
+
+/**
+ * calc_txlen - calculate size of message to send packet
+ * @len: Lenght of data
+ *
+ * Returns the size of the TXFIFO message needed to send
+ * this packet.
+ */
+static inline unsigned calc_txlen(unsigned len)
+{
+        return ALIGN(len + 4, 4);
+}
+
+/**
+ * ks8851_wrpkt - write packet to TX FIFO
+ * @ks: The device state.
+ * @txp: The sk_buff to transmit.
+ * @irq: IRQ on completion of the packet.
+ *
+ * Send the @txp to the chip. This means creating the relevant packet header
+ * specifying the length of the packet and the other information the chip
+ * needs, such as IRQ on completion. Send the header and the packet data to
+ * the device.
+ */
+static void ks8851_wrpkt(struct ks8851_net *ks, struct sk_buff *txp, bool irq)
+{
+        struct spi_transfer *xfer = ks->spi_xfer2;
+        struct spi_message *msg = &ks->spi_msg2;
+        unsigned fid = 0;
+        int ret;
+
+        if (netif_msg_tx_queued(ks))
+                dev_dbg(&ks->spidev->dev, "%s: skb %p, %d@%p, irq %d\n",
+                        __func__, txp, txp->len, txp->data, irq);
+
+        fid = ks->fid++;
+        fid &= TXFR_TXFID_MASK;
+
+        if (irq)
+                fid |= TXFR_TXIC;       /* irq on completion */
+
+        /* start header at txb[1] to align txw entries */
+        ks->txh.txb[1] = KS_SPIOP_TXFIFO;
+        ks->txh.txw[1] = cpu_to_le16(fid);
+        ks->txh.txw[2] = cpu_to_le16(txp->len);
+
+        xfer->tx_buf = &ks->txh.txb[1];
+        xfer->rx_buf = NULL;
+        xfer->len = 5;
+
+        xfer++;
+        xfer->tx_buf = txp->data;
+        xfer->rx_buf = NULL;
+        xfer->len = ALIGN(txp->len, 4);
+
+        ret = spi_sync(ks->spidev, msg);
+        if (ret < 0)
+                ks_err(ks, "%s: spi_sync() failed\n", __func__);
+}
+
+/**
+ * ks8851_done_tx - update and then free skbuff after transmitting
+ * @ks: The device state
+ * @txb: The buffer transmitted
+ */
+static void ks8851_done_tx(struct ks8851_net *ks, struct sk_buff *txb)
+{
+        struct net_device *dev = ks->netdev;
+
+        dev->stats.tx_bytes += txb->len;
+        dev->stats.tx_packets++;
+
+        dev_kfree_skb(txb);
+}
+
+/**
+ * ks8851_tx_work - process tx packet(s)
+ * @work: The work strucutre what was scheduled.
+ *
+ * This is called when a number of packets have been scheduled for
+ * transmission and need to be sent to the device.
+ */
+static void ks8851_tx_work(struct work_struct *work)
+{
+        struct ks8851_net *ks = container_of(work, struct ks8851_net, tx_work);
+        struct sk_buff *txb;
+        bool last = false;
+
+        mutex_lock(&ks->lock);
+
+        while (!last) {
+                txb = skb_dequeue(&ks->txq);
+                last = skb_queue_empty(&ks->txq);
+
+                ks8851_wrreg16(ks, KS_RXQCR, ks->rc_rxqcr | RXQCR_SDA);
+                ks8851_wrpkt(ks, txb, last);
+                ks8851_wrreg16(ks, KS_RXQCR, ks->rc_rxqcr);
+                ks8851_wrreg16(ks, KS_TXQCR, TXQCR_METFE);
+
+                ks8851_done_tx(ks, txb);
+        }
+
+        mutex_unlock(&ks->lock);
+}
+
+/**
+ * ks8851_set_powermode - set power mode of the device
+ * @ks: The device state
+ * @pwrmode: The power mode value to write to KS_PMECR.
+ *
+ * Change the power mode of the chip.
+ */
+static void ks8851_set_powermode(struct ks8851_net *ks, unsigned pwrmode)
+{
+        unsigned pmecr;
+
+        if (netif_msg_hw(ks))
+                ks_dbg(ks, "setting power mode %d\n", pwrmode);
+
+        pmecr = ks8851_rdreg16(ks, KS_PMECR);
+        pmecr &= ~PMECR_PM_MASK;
+        pmecr |= pwrmode;
+
+        ks8851_wrreg16(ks, KS_PMECR, pmecr);
+}
+
+/**
+ * ks8851_net_open - open network device
+ * @dev: The network device being opened.
+ *
+ * Called when the network device is marked active, such as a user executing
+ * 'ifconfig up' on the device.
+ */
+static int ks8851_net_open(struct net_device *dev)
+{
+        struct ks8851_net *ks = netdev_priv(dev);
+
+        /* lock the card, even if we may not actually be doing anything
+         * else at the moment */
+        mutex_lock(&ks->lock);
+
+        if (netif_msg_ifup(ks))
+                ks_dbg(ks, "opening %s\n", dev->name);
+
+        /* bring chip out of any power saving mode it was in */
+        ks8851_set_powermode(ks, PMECR_PM_NORMAL);
+
+        /* issue a soft reset to the RX/TX QMU to put it into a known
+         * state. */
+        ks8851_soft_reset(ks, GRR_QMU);
+
+        /* setup transmission parameters */
+
+        ks8851_wrreg16(ks, KS_TXCR, (TXCR_TXE | /* enable transmit process */
+                                     TXCR_TXPE | /* pad to min length */
+                                     TXCR_TXCRC | /* add CRC */
+                                     TXCR_TXFCE)); /* enable flow control */
+
+        /* auto-increment tx data, reset tx pointer */
+        ks8851_wrreg16(ks, KS_TXFDPR, TXFDPR_TXFPAI);
+
+        /* setup receiver control */
+
+        ks8851_wrreg16(ks, KS_RXCR1, (RXCR1_RXPAFMA | /*  from mac filter */
+                                      RXCR1_RXFCE | /* enable flow control */
+                                      RXCR1_RXBE | /* broadcast enable */
+                                      RXCR1_RXUE | /* unicast enable */
+                                      RXCR1_RXE)); /* enable rx block */
+
+        /* transfer entire frames out in one go */
+        ks8851_wrreg16(ks, KS_RXCR2, RXCR2_SRDBL_FRAME);
+
+        /* set receive counter timeouts */
+        ks8851_wrreg16(ks, KS_RXDTTR, 1000); /* 1ms after first frame to IRQ */
+        ks8851_wrreg16(ks, KS_RXDBCTR, 4096); /* >4Kbytes in buffer to IRQ */
+        ks8851_wrreg16(ks, KS_RXFCTR, 10);  /* 10 frames to IRQ */
+
+        ks->rc_rxqcr = (RXQCR_RXFCTE |  /* IRQ on frame count exceeded */
+                        RXQCR_RXDBCTE | /* IRQ on byte count exceeded */
+                        RXQCR_RXDTTE);  /* IRQ on time exceeded */
+
+        ks8851_wrreg16(ks, KS_RXQCR, ks->rc_rxqcr);
+
+        /* clear then enable interrupts */
+
+#define STD_IRQ (IRQ_LCI |      /* Link Change */       \
+                 IRQ_TXI |      /* TX done */           \
+                 IRQ_RXI |      /* RX done */           \
+                 IRQ_SPIBEI |   /* SPI bus error */     \
+                 IRQ_TXPSI |    /* TX process stop */   \
+                 IRQ_RXPSI)     /* RX process stop */
+
+        ks->rc_ier = STD_IRQ;
+        ks8851_wrreg16(ks, KS_ISR, STD_IRQ);
+        ks8851_wrreg16(ks, KS_IER, STD_IRQ);
+
+        netif_start_queue(ks->netdev);
+
+        if (netif_msg_ifup(ks))
+                ks_dbg(ks, "network device %s up\n", dev->name);
+
+        mutex_unlock(&ks->lock);
+        return 0;
+}
+
+/**
+ * ks8851_net_stop - close network device
+ * @dev: The device being closed.
+ *
+ * Called to close down a network device which has been active. Cancell any
+ * work, shutdown the RX and TX process and then place the chip into a low
+ * power state whilst it is not being used.
+ */
+static int ks8851_net_stop(struct net_device *dev)
+{
+        struct ks8851_net *ks = netdev_priv(dev);
+
+        if (netif_msg_ifdown(ks))
+                ks_info(ks, "%s: shutting down\n", dev->name);
+
+        netif_stop_queue(dev);
+
+        mutex_lock(&ks->lock);
+
+        /* stop any outstanding work */
+        flush_work(&ks->irq_work);
+        flush_work(&ks->tx_work);
+        flush_work(&ks->rxctrl_work);
+
+        /* turn off the IRQs and ack any outstanding */
+        ks8851_wrreg16(ks, KS_IER, 0x0000);
+        ks8851_wrreg16(ks, KS_ISR, 0xffff);
+
+        /* shutdown RX process */
+        ks8851_wrreg16(ks, KS_RXCR1, 0x0000);
+
+        /* shutdown TX process */
+        ks8851_wrreg16(ks, KS_TXCR, 0x0000);
+
+        /* set powermode to soft power down to save power */
+        ks8851_set_powermode(ks, PMECR_PM_SOFTDOWN);
+
+        /* ensure any queued tx buffers are dumped */
+        while (!skb_queue_empty(&ks->txq)) {
+                struct sk_buff *txb = skb_dequeue(&ks->txq);
+
+                if (netif_msg_ifdown(ks))
+                        ks_dbg(ks, "%s: freeing txb %p\n", __func__, txb);
+
+                dev_kfree_skb(txb);
+        }
+
+        mutex_unlock(&ks->lock);
+        return 0;
+}
+
+/**
+ * ks8851_start_xmit - transmit packet
+ * @skb: The buffer to transmit
+ * @dev: The device used to transmit the packet.
+ *
+ * Called by the network layer to transmit the @skb. Queue the packet for
+ * the device and schedule the necessary work to transmit the packet when
+ * it is free.
+ *
+ * We do this to firstly avoid sleeping with the network device locked,
+ * and secondly so we can round up more than one packet to transmit which
+ * means we can try and avoid generating too many transmit done interrupts.
+ */
+static int ks8851_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+        struct ks8851_net *ks = netdev_priv(dev);
+        unsigned needed = calc_txlen(skb->len);
+        int ret = NETDEV_TX_OK;
+
+        if (netif_msg_tx_queued(ks))
+                ks_dbg(ks, "%s: skb %p, %d@%p\n", __func__,
+                       skb, skb->len, skb->data);
+
+        spin_lock(&ks->statelock);
+
+        if (needed > ks->tx_space) {
+                netif_stop_queue(dev);
+                ret = NETDEV_TX_BUSY;
+        } else {
+                ks->tx_space -= needed;
+                skb_queue_tail(&ks->txq, skb);
+        }
+
+        spin_unlock(&ks->statelock);
+        schedule_work(&ks->tx_work);
+
+        return ret;
+}
+
+/**
+ * ks8851_rxctrl_work - work handler to change rx mode
+ * @work: The work structure this belongs to.
+ *
+ * Lock the device and issue the necessary changes to the receive mode from
+ * the network device layer. This is done so that we can do this without
+ * having to sleep whilst holding the network device lock.
+ *
+ * Since the recommendation from Micrel is that the RXQ is shutdown whilst the
+ * receive parameters are programmed, we issue a write to disable the RXQ and
+ * then wait for the interrupt handler to be triggered once the RXQ shutdown is
+ * complete. The interrupt handler then writes the new values into the chip.
+ */
+static void ks8851_rxctrl_work(struct work_struct *work)
+{
+        struct ks8851_net *ks = container_of(work, struct ks8851_net, rxctrl_work);
+
+        mutex_lock(&ks->lock);
+
+        /* need to shutdown RXQ before modifying filter parameters */
+        ks8851_wrreg16(ks, KS_RXCR1, 0x00);
+
+        mutex_unlock(&ks->lock);
+}
+
+static void ks8851_set_rx_mode(struct net_device *dev)
+{
+        struct ks8851_net *ks = netdev_priv(dev);
+        struct ks8851_rxctrl rxctrl;
+
+        memset(&rxctrl, 0, sizeof(rxctrl));
+
+        if (dev->flags & IFF_PROMISC) {
+                /* interface to receive everything */
+
+                rxctrl.rxcr1 = RXCR1_RXAE | RXCR1_RXINVF;
+        } else if (dev->flags & IFF_ALLMULTI) {
+                /* accept all multicast packets */
+
+                rxctrl.rxcr1 = (RXCR1_RXME | RXCR1_RXAE |
+                                RXCR1_RXPAFMA | RXCR1_RXMAFMA);
+        } else if (dev->flags & IFF_MULTICAST && dev->mc_count > 0) {
+                struct dev_mc_list *mcptr = dev->mc_list;
+                u32 crc;
+                int i;
+
+                /* accept some multicast */
+
+                for (i = dev->mc_count; i > 0; i--) {
+                        crc = ether_crc(ETH_ALEN, mcptr->dmi_addr);
+                        crc >>= (32 - 6);  /* get top six bits */
+
+                        rxctrl.mchash[crc >> 4] |= (1 << (crc & 0xf));
+                        mcptr = mcptr->next;
+                }
+
+                rxctrl.rxcr1 = RXCR1_RXME | RXCR1_RXAE | RXCR1_RXPAFMA;
+        } else {
+                /* just accept broadcast / unicast */
+                rxctrl.rxcr1 = RXCR1_RXPAFMA;
+        }
+
+        rxctrl.rxcr1 |= (RXCR1_RXUE | /* unicast enable */
+                         RXCR1_RXBE | /* broadcast enable */
+                         RXCR1_RXE | /* RX process enable */
+                         RXCR1_RXFCE); /* enable flow control */
+
+        rxctrl.rxcr2 |= RXCR2_SRDBL_FRAME;
+
+        /* schedule work to do the actual set of the data if needed */
+
+        spin_lock(&ks->statelock);
+
+        if (memcmp(&rxctrl, &ks->rxctrl, sizeof(rxctrl)) != 0) {
+                memcpy(&ks->rxctrl, &rxctrl, sizeof(ks->rxctrl));
+                schedule_work(&ks->rxctrl_work);
+        }
+
+        spin_unlock(&ks->statelock);
+}
+
+static int ks8851_set_mac_address(struct net_device *dev, void *addr)
+{
+        struct sockaddr *sa = addr;
+
+        if (netif_running(dev))
+                return -EBUSY;
+
+        if (!is_valid_ether_addr(sa->sa_data))
+                return -EADDRNOTAVAIL;
+
+        memcpy(dev->dev_addr, sa->sa_data, ETH_ALEN);
+        return ks8851_write_mac_addr(dev);
+}
+
+static int ks8851_net_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
+{
+        struct ks8851_net *ks = netdev_priv(dev);
+
+        if (!netif_running(dev))
+                return -EINVAL;
+
+        return generic_mii_ioctl(&ks->mii, if_mii(req), cmd, NULL);
+}
+
+static const struct net_device_ops ks8851_netdev_ops = {
+        .ndo_open               = ks8851_net_open,
+        .ndo_stop               = ks8851_net_stop,
+        .ndo_do_ioctl           = ks8851_net_ioctl,
+        .ndo_start_xmit         = ks8851_start_xmit,
+        .ndo_set_mac_address    = ks8851_set_mac_address,
+        .ndo_set_rx_mode        = ks8851_set_rx_mode,
+        .ndo_change_mtu         = eth_change_mtu,
+        .ndo_validate_addr      = eth_validate_addr,
+};
+
+/* ethtool support */
+
+static void ks8851_get_drvinfo(struct net_device *dev,
+                               struct ethtool_drvinfo *di)
+{
+        strlcpy(di->driver, "KS8851", sizeof(di->driver));
+        strlcpy(di->version, "1.00", sizeof(di->version));
+        strlcpy(di->bus_info, dev_name(dev->dev.parent), sizeof(di->bus_info));
+}
+
+static u32 ks8851_get_msglevel(struct net_device *dev)
+{
+        struct ks8851_net *ks = netdev_priv(dev);
+        return ks->msg_enable;
+}
+
+static void ks8851_set_msglevel(struct net_device *dev, u32 to)
+{
+        struct ks8851_net *ks = netdev_priv(dev);
+        ks->msg_enable = to;
+}
+
+static int ks8851_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+        struct ks8851_net *ks = netdev_priv(dev);
+        return mii_ethtool_gset(&ks->mii, cmd);
+}
+
+static int ks8851_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+        struct ks8851_net *ks = netdev_priv(dev);
+        return mii_ethtool_sset(&ks->mii, cmd);
+}
+
+static u32 ks8851_get_link(struct net_device *dev)
+{
+        struct ks8851_net *ks = netdev_priv(dev);
+        return mii_link_ok(&ks->mii);
+}
+
+static int ks8851_nway_reset(struct net_device *dev)
+{
+        struct ks8851_net *ks = netdev_priv(dev);
+        return mii_nway_restart(&ks->mii);
+}
+
+static const struct ethtool_ops ks8851_ethtool_ops = {
+        .get_drvinfo    = ks8851_get_drvinfo,
+        .get_msglevel   = ks8851_get_msglevel,
+        .set_msglevel   = ks8851_set_msglevel,
+        .get_settings   = ks8851_get_settings,
+        .set_settings   = ks8851_set_settings,
+        .get_link       = ks8851_get_link,
+        .nway_reset     = ks8851_nway_reset,
+};
+
+/* MII interface controls */
+
+/**
+ * ks8851_phy_reg - convert MII register into a KS8851 register
+ * @reg: MII register number.
+ *
+ * Return the KS8851 register number for the corresponding MII PHY register
+ * if possible. Return zero if the MII register has no direct mapping to the
+ * KS8851 register set.
+ */
+static int ks8851_phy_reg(int reg)
+{
+        switch (reg) {
+        case MII_BMCR:
+                return KS_P1MBCR;
+        case MII_BMSR:
+                return KS_P1MBSR;
+        case MII_PHYSID1:
+                return KS_PHY1ILR;
+        case MII_PHYSID2:
+                return KS_PHY1IHR;
+        case MII_ADVERTISE:
+                return KS_P1ANAR;
+        case MII_LPA:
+                return KS_P1ANLPR;
+        }
+
+        return 0x0;
+}
+
+/**
+ * ks8851_phy_read - MII interface PHY register read.
+ * @dev: The network device the PHY is on.
+ * @phy_addr: Address of PHY (ignored as we only have one)
+ * @reg: The register to read.
+ *
+ * This call reads data from the PHY register specified in @reg. Since the
+ * device does not support all the MII registers, the non-existant values
+ * are always returned as zero.
+ *
+ * We return zero for unsupported registers as the MII code does not check
+ * the value returned for any error status, and simply returns it to the
+ * caller. The mii-tool that the driver was tested with takes any -ve error
+ * as real PHY capabilities, thus displaying incorrect data to the user.
+ */
+static int ks8851_phy_read(struct net_device *dev, int phy_addr, int reg)
+{
+        struct ks8851_net *ks = netdev_priv(dev);
+        int ksreg;
+        int result;
+
+        ksreg = ks8851_phy_reg(reg);
+        if (!ksreg)
+                return 0x0;     /* no error return allowed, so use zero */
+
+        mutex_lock(&ks->lock);
+        result = ks8851_rdreg16(ks, ksreg);
+        mutex_unlock(&ks->lock);
+
+        return result;
+}
+
+static void ks8851_phy_write(struct net_device *dev,
+                             int phy, int reg, int value)
+{
+        struct ks8851_net *ks = netdev_priv(dev);
+        int ksreg;
+
+        ksreg = ks8851_phy_reg(reg);
+        if (ksreg) {
+                mutex_lock(&ks->lock);
+                ks8851_wrreg16(ks, ksreg, value);
+                mutex_unlock(&ks->lock);
+        }
+}
+
+/**
+ * ks8851_read_selftest - read the selftest memory info.
+ * @ks: The device state
+ *
+ * Read and check the TX/RX memory selftest information.
+ */
+static int ks8851_read_selftest(struct ks8851_net *ks)
+{
+        unsigned both_done = MBIR_TXMBF | MBIR_RXMBF;
+        int ret = 0;
+        unsigned rd;
+
+        rd = ks8851_rdreg16(ks, KS_MBIR);
+
+        if ((rd & both_done) != both_done) {
+                ks_warn(ks, "Memory selftest not finished\n");
+                return 0;
+        }
+
+        if (rd & MBIR_TXMBFA) {
+                ks_err(ks, "TX memory selftest fail\n");
+                ret |= 1;
+        }
+
+        if (rd & MBIR_RXMBFA) {
+                ks_err(ks, "RX memory selftest fail\n");
+                ret |= 2;
+        }
+
+        return 0;
+}
+
+/* driver bus management functions */
+
+static int __devinit ks8851_probe(struct spi_device *spi)
+{
+        struct net_device *ndev;
+        struct ks8851_net *ks;
+        int ret;
+
+        ndev = alloc_etherdev(sizeof(struct ks8851_net));
+        if (!ndev) {
+                dev_err(&spi->dev, "failed to alloc ethernet device\n");
+                return -ENOMEM;
+        }
+
+        spi->bits_per_word = 8;
+
+        ks = netdev_priv(ndev);
+
+        ks->netdev = ndev;
+        ks->spidev = spi;
+        ks->tx_space = 6144;
+
+        mutex_init(&ks->lock);
+        spin_lock_init(&ks->statelock);
+
+        INIT_WORK(&ks->tx_work, ks8851_tx_work);
+        INIT_WORK(&ks->irq_work, ks8851_irq_work);
+        INIT_WORK(&ks->rxctrl_work, ks8851_rxctrl_work);
+
+        /* initialise pre-made spi transfer messages */
+
+        spi_message_init(&ks->spi_msg1);
+        spi_message_add_tail(&ks->spi_xfer1, &ks->spi_msg1);
+
+        spi_message_init(&ks->spi_msg2);
+        spi_message_add_tail(&ks->spi_xfer2[0], &ks->spi_msg2);
+        spi_message_add_tail(&ks->spi_xfer2[1], &ks->spi_msg2);
+
+        /* setup mii state */
+        ks->mii.dev             = ndev;
+        ks->mii.phy_id          = 1,
+        ks->mii.phy_id_mask     = 1;
+        ks->mii.reg_num_mask    = 0xf;
+        ks->mii.mdio_read       = ks8851_phy_read;
+        ks->mii.mdio_write      = ks8851_phy_write;
+
+        dev_info(&spi->dev, "message enable is %d\n", msg_enable);
+
+        /* set the default message enable */
+        ks->msg_enable = netif_msg_init(msg_enable, (NETIF_MSG_DRV |
+                                                     NETIF_MSG_PROBE |
+                                                     NETIF_MSG_LINK));
+
+        skb_queue_head_init(&ks->txq);
+
+        SET_ETHTOOL_OPS(ndev, &ks8851_ethtool_ops);
+        SET_NETDEV_DEV(ndev, &spi->dev);
+
+        dev_set_drvdata(&spi->dev, ks);
+
+        ndev->if_port = IF_PORT_100BASET;
+        ndev->netdev_ops = &ks8851_netdev_ops;
+        ndev->irq = spi->irq;
+
+        /* simple check for a valid chip being connected to the bus */
+
+        if ((ks8851_rdreg16(ks, KS_CIDER) & ~CIDER_REV_MASK) != CIDER_ID) {
+                dev_err(&spi->dev, "failed to read device ID\n");
+                ret = -ENODEV;
+                goto err_id;
+        }
+
+        ks8851_read_selftest(ks);
+        ks8851_init_mac(ks);
+
+        ret = request_irq(spi->irq, ks8851_irq, IRQF_TRIGGER_LOW,
+                          ndev->name, ks);
+        if (ret < 0) {
+                dev_err(&spi->dev, "failed to get irq\n");
+                goto err_irq;
+        }
+
+        ret = register_netdev(ndev);
+        if (ret) {
+                dev_err(&spi->dev, "failed to register network device\n");
+                goto err_netdev;
+        }
+
+        dev_info(&spi->dev, "revision %d, MAC %pM, IRQ %d\n",
+                 CIDER_REV_GET(ks8851_rdreg16(ks, KS_CIDER)),
+                 ndev->dev_addr, ndev->irq);
+
+        return 0;
+
+
+err_netdev:
+        free_irq(ndev->irq, ndev);
+
+err_id:
+err_irq:
+        free_netdev(ndev);
+        return ret;
+}
+
+static int __devexit ks8851_remove(struct spi_device *spi)
+{
+        struct ks8851_net *priv = dev_get_drvdata(&spi->dev);
+
+        if (netif_msg_drv(priv))
+                dev_info(&spi->dev, "remove");
+
+        unregister_netdev(priv->netdev);
+        free_irq(spi->irq, priv);
+        free_netdev(priv->netdev);
+
+        return 0;
+}
+
+static struct spi_driver ks8851_driver = {
+        .driver = {
+                .name = "ks8851",
+                .owner = THIS_MODULE,
+        },
+        .probe = ks8851_probe,
+        .remove = __devexit_p(ks8851_remove),
+};
+
+static int __init ks8851_init(void)
+{
+        return spi_register_driver(&ks8851_driver);
+}
+
+static void __exit ks8851_exit(void)
+{
+        spi_unregister_driver(&ks8851_driver);
+}
+
+module_init(ks8851_init);
+module_exit(ks8851_exit);
+
+MODULE_DESCRIPTION("KS8851 Network driver");
+MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
+MODULE_LICENSE("GPL");
+
+module_param_named(message, msg_enable, int, 0);
+MODULE_PARM_DESC(message, "Message verbosity level (0=none, 31=all)");
diff --git a/drivers/net/ks8851.h b/drivers/net/ks8851.h
new file mode 100644
index 000000000000..85abe147afbf
--- /dev/null
+++ b/drivers/net/ks8851.h
@@ -0,0 +1,296 @@
+/* drivers/net/ks8851.h
+ *
+ * Copyright 2009 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+ * KS8851 register definitions
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#define KS_CCR                                  0x08
+#define CCR_EEPROM                              (1 << 9)
+#define CCR_SPI                                 (1 << 8)
+#define CCR_32PIN                               (1 << 0)
+
+/* MAC address registers */
+#define KS_MARL                                 0x10
+#define KS_MARM                                 0x12
+#define KS_MARH                                 0x14
+
+#define KS_OBCR                                 0x20
+#define OBCR_ODS_16mA                           (1 << 6)
+
+#define KS_EEPCR                                0x22
+#define EEPCR_EESA                              (1 << 4)
+#define EEPCR_EESB                              (1 << 3)
+#define EEPCR_EEDO                              (1 << 2)
+#define EEPCR_EESCK                             (1 << 1)
+#define EEPCR_EECS                              (1 << 0)
+
+#define KS_MBIR                                 0x24
+#define MBIR_TXMBF                              (1 << 12)
+#define MBIR_TXMBFA                             (1 << 11)
+#define MBIR_RXMBF                              (1 << 4)
+#define MBIR_RXMBFA                             (1 << 3)
+
+#define KS_GRR                                  0x26
+#define GRR_QMU                                 (1 << 1)
+#define GRR_GSR                                 (1 << 0)
+
+#define KS_WFCR                                 0x2A
+#define WFCR_MPRXE                              (1 << 7)
+#define WFCR_WF3E                               (1 << 3)
+#define WFCR_WF2E                               (1 << 2)
+#define WFCR_WF1E                               (1 << 1)
+#define WFCR_WF0E                               (1 << 0)
+
+#define KS_WF0CRC0                              0x30
+#define KS_WF0CRC1                              0x32
+#define KS_WF0BM0                               0x34
+#define KS_WF0BM1                               0x36
+#define KS_WF0BM2                               0x38
+#define KS_WF0BM3                               0x3A
+
+#define KS_WF1CRC0                              0x40
+#define KS_WF1CRC1                              0x42
+#define KS_WF1BM0                               0x44
+#define KS_WF1BM1                               0x46
+#define KS_WF1BM2                               0x48
+#define KS_WF1BM3                               0x4A
+
+#define KS_WF2CRC0                              0x50
+#define KS_WF2CRC1                              0x52
+#define KS_WF2BM0                               0x54
+#define KS_WF2BM1                               0x56
+#define KS_WF2BM2                               0x58
+#define KS_WF2BM3                               0x5A
+
+#define KS_WF3CRC0                              0x60
+#define KS_WF3CRC1                              0x62
+#define KS_WF3BM0                               0x64
+#define KS_WF3BM1                               0x66
+#define KS_WF3BM2                               0x68
+#define KS_WF3BM3                               0x6A
+
+#define KS_TXCR                                 0x70
+#define TXCR_TCGICMP                            (1 << 8)
+#define TXCR_TCGUDP                             (1 << 7)
+#define TXCR_TCGTCP                             (1 << 6)
+#define TXCR_TCGIP                              (1 << 5)
+#define TXCR_FTXQ                               (1 << 4)
+#define TXCR_TXFCE                              (1 << 3)
+#define TXCR_TXPE                               (1 << 2)
+#define TXCR_TXCRC                              (1 << 1)
+#define TXCR_TXE                                (1 << 0)
+
+#define KS_TXSR                                 0x72
+#define TXSR_TXLC                               (1 << 13)
+#define TXSR_TXMC                               (1 << 12)
+#define TXSR_TXFID_MASK                         (0x3f << 0)
+#define TXSR_TXFID_SHIFT                        (0)
+#define TXSR_TXFID_GET(_v)                      (((_v) >> 0) & 0x3f)
+
+#define KS_RXCR1                                0x74
+#define RXCR1_FRXQ                              (1 << 15)
+#define RXCR1_RXUDPFCC                          (1 << 14)
+#define RXCR1_RXTCPFCC                          (1 << 13)
+#define RXCR1_RXIPFCC                           (1 << 12)
+#define RXCR1_RXPAFMA                           (1 << 11)
+#define RXCR1_RXFCE                             (1 << 10)
+#define RXCR1_RXEFE                             (1 << 9)
+#define RXCR1_RXMAFMA                           (1 << 8)
+#define RXCR1_RXBE                              (1 << 7)
+#define RXCR1_RXME                              (1 << 6)
+#define RXCR1_RXUE                              (1 << 5)
+#define RXCR1_RXAE                              (1 << 4)
+#define RXCR1_RXINVF                            (1 << 1)
+#define RXCR1_RXE                               (1 << 0)
+
+#define KS_RXCR2                                0x76
+#define RXCR2_SRDBL_MASK                        (0x7 << 5)
+#define RXCR2_SRDBL_SHIFT                       (5)
+#define RXCR2_SRDBL_4B                          (0x0 << 5)
+#define RXCR2_SRDBL_8B                          (0x1 << 5)
+#define RXCR2_SRDBL_16B                         (0x2 << 5)
+#define RXCR2_SRDBL_32B                         (0x3 << 5)
+#define RXCR2_SRDBL_FRAME                       (0x4 << 5)
+#define RXCR2_IUFFP                             (1 << 4)
+#define RXCR2_RXIUFCEZ                          (1 << 3)
+#define RXCR2_UDPLFE                            (1 << 2)
+#define RXCR2_RXICMPFCC                         (1 << 1)
+#define RXCR2_RXSAF                             (1 << 0)
+
+#define KS_TXMIR                                0x78
+
+#define KS_RXFHSR                               0x7C
+#define RXFSHR_RXFV                             (1 << 15)
+#define RXFSHR_RXICMPFCS                        (1 << 13)
+#define RXFSHR_RXIPFCS                          (1 << 12)
+#define RXFSHR_RXTCPFCS                         (1 << 11)
+#define RXFSHR_RXUDPFCS                         (1 << 10)
+#define RXFSHR_RXBF                             (1 << 7)
+#define RXFSHR_RXMF                             (1 << 6)
+#define RXFSHR_RXUF                             (1 << 5)
+#define RXFSHR_RXMR                             (1 << 4)
+#define RXFSHR_RXFT                             (1 << 3)
+#define RXFSHR_RXFTL                            (1 << 2)
+#define RXFSHR_RXRF                             (1 << 1)
+#define RXFSHR_RXCE                             (1 << 0)
+
+#define KS_RXFHBCR                              0x7E
+#define KS_TXQCR                                0x80
+#define TXQCR_AETFE                             (1 << 2)
+#define TXQCR_TXQMAM                            (1 << 1)
+#define TXQCR_METFE                             (1 << 0)
+
+#define KS_RXQCR                                0x82
+#define RXQCR_RXDTTS                            (1 << 12)
+#define RXQCR_RXDBCTS                           (1 << 11)
+#define RXQCR_RXFCTS                            (1 << 10)
+#define RXQCR_RXIPHTOE                          (1 << 9)
+#define RXQCR_RXDTTE                            (1 << 7)
+#define RXQCR_RXDBCTE                           (1 << 6)
+#define RXQCR_RXFCTE                            (1 << 5)
+#define RXQCR_ADRFE                             (1 << 4)
+#define RXQCR_SDA                               (1 << 3)
+#define RXQCR_RRXEF                             (1 << 0)
+
+#define KS_TXFDPR                               0x84
+#define TXFDPR_TXFPAI                           (1 << 14)
+#define TXFDPR_TXFP_MASK                        (0x7ff << 0)
+#define TXFDPR_TXFP_SHIFT                       (0)
+
+#define KS_RXFDPR                               0x86
+#define RXFDPR_RXFPAI                           (1 << 14)
+
+#define KS_RXDTTR                               0x8C
+#define KS_RXDBCTR                              0x8E
+
+#define KS_IER                                  0x90
+#define KS_ISR                                  0x92
+#define IRQ_LCI                                 (1 << 15)
+#define IRQ_TXI                                 (1 << 14)
+#define IRQ_RXI                                 (1 << 13)
+#define IRQ_RXOI                                (1 << 11)
+#define IRQ_TXPSI                               (1 << 9)
+#define IRQ_RXPSI                               (1 << 8)
+#define IRQ_TXSAI                               (1 << 6)
+#define IRQ_RXWFDI                              (1 << 5)
+#define IRQ_RXMPDI                              (1 << 4)
+#define IRQ_LDI                                 (1 << 3)
+#define IRQ_EDI                                 (1 << 2)
+#define IRQ_SPIBEI                              (1 << 1)
+#define IRQ_DEDI                                (1 << 0)
+
+#define KS_RXFCTR                               0x9C
+#define KS_RXFC                                 0x9D
+#define RXFCTR_RXFC_MASK                        (0xff << 8)
+#define RXFCTR_RXFC_SHIFT                       (8)
+#define RXFCTR_RXFC_GET(_v)                     (((_v) >> 8) & 0xff)
+#define RXFCTR_RXFCT_MASK                       (0xff << 0)
+#define RXFCTR_RXFCT_SHIFT                      (0)
+
+#define KS_TXNTFSR                              0x9E
+
+#define KS_MAHTR0                               0xA0
+#define KS_MAHTR1                               0xA2
+#define KS_MAHTR2                               0xA4
+#define KS_MAHTR3                               0xA6
+
+#define KS_FCLWR                                0xB0
+#define KS_FCHWR                                0xB2
+#define KS_FCOWR                                0xB4
+
+#define KS_CIDER                                0xC0
+#define CIDER_ID                                0x8870
+#define CIDER_REV_MASK                          (0x7 << 1)
+#define CIDER_REV_SHIFT                         (1)
+#define CIDER_REV_GET(_v)                       (((_v) >> 1) & 0x7)
+
+#define KS_CGCR                                 0xC6
+
+#define KS_IACR                                 0xC8
+#define IACR_RDEN                               (1 << 12)
+#define IACR_TSEL_MASK                          (0x3 << 10)
+#define IACR_TSEL_SHIFT                         (10)
+#define IACR_TSEL_MIB                           (0x3 << 10)
+#define IACR_ADDR_MASK                          (0x1f << 0)
+#define IACR_ADDR_SHIFT                         (0)
+
+#define KS_IADLR                                0xD0
+#define KS_IAHDR                                0xD2
+
+#define KS_PMECR                                0xD4
+#define PMECR_PME_DELAY                         (1 << 14)
+#define PMECR_PME_POL                           (1 << 12)
+#define PMECR_WOL_WAKEUP                        (1 << 11)
+#define PMECR_WOL_MAGICPKT                      (1 << 10)
+#define PMECR_WOL_LINKUP                        (1 << 9)
+#define PMECR_WOL_ENERGY                        (1 << 8)
+#define PMECR_AUTO_WAKE_EN                      (1 << 7)
+#define PMECR_WAKEUP_NORMAL                     (1 << 6)
+#define PMECR_WKEVT_MASK                        (0xf << 2)
+#define PMECR_WKEVT_SHIFT                       (2)
+#define PMECR_WKEVT_GET(_v)                     (((_v) >> 2) & 0xf)
+#define PMECR_WKEVT_ENERGY                      (0x1 << 2)
+#define PMECR_WKEVT_LINK                        (0x2 << 2)
+#define PMECR_WKEVT_MAGICPKT                    (0x4 << 2)
+#define PMECR_WKEVT_FRAME                       (0x8 << 2)
+#define PMECR_PM_MASK                           (0x3 << 0)
+#define PMECR_PM_SHIFT                          (0)
+#define PMECR_PM_NORMAL                         (0x0 << 0)
+#define PMECR_PM_ENERGY                         (0x1 << 0)
+#define PMECR_PM_SOFTDOWN                       (0x2 << 0)
+#define PMECR_PM_POWERSAVE                      (0x3 << 0)
+
+/* Standard MII PHY data */
+#define KS_P1MBCR                               0xE4
+#define KS_P1MBSR                               0xE6
+#define KS_PHY1ILR                              0xE8
+#define KS_PHY1IHR                              0xEA
+#define KS_P1ANAR                               0xEC
+#define KS_P1ANLPR                              0xEE
+
+#define KS_P1SCLMD                              0xF4
+#define P1SCLMD_LEDOFF                          (1 << 15)
+#define P1SCLMD_TXIDS                           (1 << 14)
+#define P1SCLMD_RESTARTAN                       (1 << 13)
+#define P1SCLMD_DISAUTOMDIX                     (1 << 10)
+#define P1SCLMD_FORCEMDIX                       (1 << 9)
+#define P1SCLMD_AUTONEGEN                       (1 << 7)
+#define P1SCLMD_FORCE100                        (1 << 6)
+#define P1SCLMD_FORCEFDX                        (1 << 5)
+#define P1SCLMD_ADV_FLOW                        (1 << 4)
+#define P1SCLMD_ADV_100BT_FDX                   (1 << 3)
+#define P1SCLMD_ADV_100BT_HDX                   (1 << 2)
+#define P1SCLMD_ADV_10BT_FDX                    (1 << 1)
+#define P1SCLMD_ADV_10BT_HDX                    (1 << 0)
+
+#define KS_P1CR                                 0xF6
+#define P1CR_HP_MDIX                            (1 << 15)
+#define P1CR_REV_POL                            (1 << 13)
+#define P1CR_OP_100M                            (1 << 10)
+#define P1CR_OP_FDX                             (1 << 9)
+#define P1CR_OP_MDI                             (1 << 7)
+#define P1CR_AN_DONE                            (1 << 6)
+#define P1CR_LINK_GOOD                          (1 << 5)
+#define P1CR_PNTR_FLOW                          (1 << 4)
+#define P1CR_PNTR_100BT_FDX                     (1 << 3)
+#define P1CR_PNTR_100BT_HDX                     (1 << 2)
+#define P1CR_PNTR_10BT_FDX                      (1 << 1)
+#define P1CR_PNTR_10BT_HDX                      (1 << 0)
+
+/* TX Frame control */
+
+#define TXFR_TXIC                               (1 << 15)
+#define TXFR_TXFID_MASK                         (0x3f << 0)
+#define TXFR_TXFID_SHIFT                        (0)
+
+/* SPI frame opcodes */
+#define KS_SPIOP_RD                             (0x00)
+#define KS_SPIOP_WR                             (0x40)
+#define KS_SPIOP_RXFIFO                         (0x80)
+#define KS_SPIOP_TXFIFO                         (0xC0)
diff --git a/drivers/net/macsonic.c b/drivers/net/macsonic.c
index acd143da161d..61eabcac734c 100644
--- a/drivers/net/macsonic.c
+++ b/drivers/net/macsonic.c
@@ -179,7 +179,7 @@ static const struct net_device_ops macsonic_netdev_ops = {
         .ndo_set_mac_address    = eth_mac_addr,
 };
 
-static int __init macsonic_init(struct net_device *dev)
+static int __devinit macsonic_init(struct net_device *dev)
 {
         struct sonic_local* lp = netdev_priv(dev);
 
@@ -223,7 +223,7 @@ static int __init macsonic_init(struct net_device *dev)
         return 0;
 }
 
-static int __init mac_onboard_sonic_ethernet_addr(struct net_device *dev)
+static int __devinit mac_onboard_sonic_ethernet_addr(struct net_device *dev)
 {
         struct sonic_local *lp = netdev_priv(dev);
         const int prom_addr = ONBOARD_SONIC_PROM_BASE;
@@ -288,7 +288,7 @@ static int __init mac_onboard_sonic_ethernet_addr(struct net_device *dev)
         } else return 0;
 }
 
-static int __init mac_onboard_sonic_probe(struct net_device *dev)
+static int __devinit mac_onboard_sonic_probe(struct net_device *dev)
 {
         /* Bwahahaha */
         static int once_is_more_than_enough;
@@ -409,7 +409,7 @@ static int __init mac_onboard_sonic_probe(struct net_device *dev)
         return macsonic_init(dev);
 }
 
-static int __init mac_nubus_sonic_ethernet_addr(struct net_device *dev,
+static int __devinit mac_nubus_sonic_ethernet_addr(struct net_device *dev,
                                                 unsigned long prom_addr,
                                                 int id)
 {
@@ -424,7 +424,7 @@ static int __init mac_nubus_sonic_ethernet_addr(struct net_device *dev,
         return 0;
 }
 
-static int __init macsonic_ident(struct nubus_dev *ndev)
+static int __devinit macsonic_ident(struct nubus_dev *ndev)
 {
         if (ndev->dr_hw == NUBUS_DRHW_ASANTE_LC &&
             ndev->dr_sw == NUBUS_DRSW_SONIC_LC)
@@ -449,7 +449,7 @@ static int __init macsonic_ident(struct nubus_dev *ndev)
         return -1;
 }
 
-static int __init mac_nubus_sonic_probe(struct net_device *dev)
+static int __devinit mac_nubus_sonic_probe(struct net_device *dev)
 {
         static int slots;
         struct nubus_dev* ndev = NULL;
@@ -562,7 +562,7 @@ static int __init mac_nubus_sonic_probe(struct net_device *dev)
         return macsonic_init(dev);
 }
 
-static int __init mac_sonic_probe(struct platform_device *pdev)
+static int __devinit mac_sonic_probe(struct platform_device *pdev)
 {
         struct net_device *dev;
         struct sonic_local *lp;
@@ -575,6 +575,7 @@ static int __init mac_sonic_probe(struct platform_device *pdev)
         lp = netdev_priv(dev);
         lp->device = &pdev->dev;
         SET_NETDEV_DEV(dev, &pdev->dev);
+        platform_set_drvdata(pdev, dev);
 
         /* This will catch fatal stuff like -ENOMEM as well as success */
         err = mac_onboard_sonic_probe(dev);
diff --git a/drivers/net/mdio.c b/drivers/net/mdio.c
index dc45e9856c35..6851bdb2ce29 100644
--- a/drivers/net/mdio.c
+++ b/drivers/net/mdio.c
@@ -14,6 +14,10 @@
 #include <linux/mdio.h>
 #include <linux/module.h>
 
+MODULE_DESCRIPTION("Generic support for MDIO-compatible transceivers");
+MODULE_AUTHOR("Copyright 2006-2009 Solarflare Communications Inc.");
+MODULE_LICENSE("GPL");
+
 /**
  * mdio45_probe - probe for an MDIO (clause 45) device
  * @mdio: MDIO interface
diff --git a/drivers/net/mlx4/cmd.c b/drivers/net/mlx4/cmd.c
index 2845a0560b84..65ec77dc31f5 100644
--- a/drivers/net/mlx4/cmd.c
+++ b/drivers/net/mlx4/cmd.c
@@ -80,7 +80,9 @@ enum {
         /* Bad management packet (silently discarded): */
         CMD_STAT_BAD_PKT        = 0x30,
         /* More outstanding CQEs in CQ than new CQ size: */
-        CMD_STAT_BAD_SIZE       = 0x40
+        CMD_STAT_BAD_SIZE       = 0x40,
+        /* Multi Function device support required: */
+        CMD_STAT_MULTI_FUNC_REQ = 0x50,
 };
 
 enum {
@@ -128,6 +130,7 @@ static int mlx4_status_to_errno(u8 status)
                 [CMD_STAT_LAM_NOT_PRE]    = -EAGAIN,
                 [CMD_STAT_BAD_PKT]        = -EINVAL,
                 [CMD_STAT_BAD_SIZE]       = -ENOMEM,
+                [CMD_STAT_MULTI_FUNC_REQ] = -EACCES,
         };
 
         if (status >= ARRAY_SIZE(trans_table) ||
diff --git a/drivers/net/mlx4/en_ethtool.c b/drivers/net/mlx4/en_ethtool.c
index 091f99052c91..86467b444ac6 100644
--- a/drivers/net/mlx4/en_ethtool.c
+++ b/drivers/net/mlx4/en_ethtool.c
@@ -220,7 +220,7 @@ static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 {
         cmd->autoneg = AUTONEG_DISABLE;
         cmd->supported = SUPPORTED_10000baseT_Full;
-        cmd->advertising = SUPPORTED_10000baseT_Full;
+        cmd->advertising = ADVERTISED_1000baseT_Full;
         if (netif_carrier_ok(dev)) {
                 cmd->speed = SPEED_10000;
                 cmd->duplex = DUPLEX_FULL;
diff --git a/drivers/net/mlx4/en_tx.c b/drivers/net/mlx4/en_tx.c
index 08c43f2ae72b..5a88b3f57693 100644
--- a/drivers/net/mlx4/en_tx.c
+++ b/drivers/net/mlx4/en_tx.c
@@ -249,6 +249,7 @@ static u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv,
                                 pci_unmap_page(mdev->pdev,
                                         (dma_addr_t) be64_to_cpu(data->addr),
                                          frag->size, PCI_DMA_TODEVICE);
+                                ++data;
                         }
                 }
                 /* Stamp the freed descriptor */
diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c
index 018348c01193..dac621b1e9fc 100644
--- a/drivers/net/mlx4/main.c
+++ b/drivers/net/mlx4/main.c
@@ -729,7 +729,10 @@ static int mlx4_init_hca(struct mlx4_dev *dev)
 
         err = mlx4_QUERY_FW(dev);
         if (err) {
-                mlx4_err(dev, "QUERY_FW command failed, aborting.\n");
+                if (err == -EACCES)
+                        mlx4_info(dev, "non-primary physical function, skipping.\n");
+                else
+                        mlx4_err(dev, "QUERY_FW command failed, aborting.\n");
                 return err;
         }
 
@@ -1285,6 +1288,7 @@ static struct pci_device_id mlx4_pci_table[] = {
         { PCI_VDEVICE(MELLANOX, 0x6750) }, /* MT25408 "Hermon" EN 10GigE PCIe gen2 */
         { PCI_VDEVICE(MELLANOX, 0x6372) }, /* MT25458 ConnectX EN 10GBASE-T 10GigE */
         { PCI_VDEVICE(MELLANOX, 0x675a) }, /* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */
+        { PCI_VDEVICE(MELLANOX, 0x6764) }, /* MT26468 ConnectX EN 10GigE PCIe gen2*/
         { 0, }
 };
 
diff --git a/drivers/net/natsemi.c b/drivers/net/natsemi.c
index c9bfe4eea189..78c088331f57 100644
--- a/drivers/net/natsemi.c
+++ b/drivers/net/natsemi.c
@@ -130,8 +130,8 @@ static int full_duplex[MAX_UNITS];
 static const char version[] __devinitconst =
   KERN_INFO DRV_NAME " dp8381x driver, version "
       DRV_VERSION ", " DRV_RELDATE "\n"
-  KERN_INFO "  originally by Donald Becker <becker@scyld.com>\n"
-  KERN_INFO "  2.4.x kernel port by Jeff Garzik, Tjeerd Mulder\n";
+  "  originally by Donald Becker <becker@scyld.com>\n"
+  "  2.4.x kernel port by Jeff Garzik, Tjeerd Mulder\n";
 
 MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
 MODULE_DESCRIPTION("National Semiconductor DP8381x series PCI Ethernet driver");
diff --git a/drivers/net/ne.c b/drivers/net/ne.c
index 5c3e242428f1..992dbfffdb05 100644
--- a/drivers/net/ne.c
+++ b/drivers/net/ne.c
@@ -321,7 +321,7 @@ static int __init ne_probe1(struct net_device *dev, unsigned long ioaddr)
         }
 
         if (ei_debug  &&  version_printed++ == 0)
-                printk(KERN_INFO "%s" KERN_INFO "%s", version1, version2);
+                printk(KERN_INFO "%s%s", version1, version2);
 
         printk(KERN_INFO "NE*000 ethercard probe at %#3lx:", ioaddr);
 
diff --git a/drivers/net/netxen/netxen_nic.h b/drivers/net/netxen/netxen_nic.h
index 970cedeb5f37..f86e05047d19 100644
--- a/drivers/net/netxen/netxen_nic.h
+++ b/drivers/net/netxen/netxen_nic.h
@@ -60,7 +60,18 @@
 #define _NETXEN_NIC_LINUX_SUBVERSION 30
 #define NETXEN_NIC_LINUX_VERSIONID  "4.0.30"
 
-#define NETXEN_VERSION_CODE(a, b, c)    (((a) << 16) + ((b) << 8) + (c))
+#define NETXEN_VERSION_CODE(a, b, c)    (((a) << 24) + ((b) << 16) + (c))
+#define _major(v)       (((v) >> 24) & 0xff)
+#define _minor(v)       (((v) >> 16) & 0xff)
+#define _build(v)       ((v) & 0xffff)
+
+/* version in image has weird encoding:
+ *  7:0  - major
+ * 15:8  - minor
+ * 31:16 - build (little endian)
+ */
+#define NETXEN_DECODE_VERSION(v) \
+        NETXEN_VERSION_CODE(((v) & 0xff), (((v) >> 8) & 0xff), ((v) >> 16))
 
 #define NETXEN_NUM_FLASH_SECTORS (64)
 #define NETXEN_FLASH_SECTOR_SIZE (64 * 1024)
@@ -199,6 +210,7 @@
 #define NETXEN_CTX_SIGNATURE    0xdee0
 #define NETXEN_CTX_SIGNATURE_V2 0x0002dee0
 #define NETXEN_CTX_RESET        0xbad0
+#define NETXEN_CTX_D3_RESET     0xacc0
 #define NETXEN_RCV_PRODUCER(ringid)     (ringid)
 
 #define PHAN_PEG_RCV_INITIALIZED        0xff01
@@ -614,6 +626,7 @@ struct netxen_new_user_info {
 #define NX_P2_MN_ROMIMAGE       0
 #define NX_P3_CT_ROMIMAGE       1
 #define NX_P3_MN_ROMIMAGE       2
+#define NX_FLASH_ROMIMAGE       3
 
 #define NETXEN_USER_START_OLD NETXEN_PXE_START  /* for backward compatibility */
 
@@ -761,6 +774,8 @@ struct nx_host_tx_ring {
         u32 crb_cmd_consumer;
         u32 num_desc;
 
+        struct netdev_queue *txq;
+
         struct netxen_cmd_buffer *cmd_buf_arr;
         struct cmd_desc_type0 *desc_head;
         dma_addr_t phys_addr;
@@ -1243,7 +1258,7 @@ struct netxen_adapter {
         u32 resv3;
 
         u8 has_link_events;
-        u8 resv1;
+        u8 fw_type;
         u16 tx_context_id;
         u16 mtu;
         u16 is_up;
@@ -1387,6 +1402,7 @@ void netxen_free_adapter_offload(struct netxen_adapter *adapter);
 int netxen_initialize_adapter_offload(struct netxen_adapter *adapter);
 int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val);
 int netxen_load_firmware(struct netxen_adapter *adapter);
+int netxen_need_fw_reset(struct netxen_adapter *adapter);
 void netxen_request_firmware(struct netxen_adapter *adapter);
 void netxen_release_firmware(struct netxen_adapter *adapter);
 int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose);
diff --git a/drivers/net/netxen/netxen_nic_ctx.c b/drivers/net/netxen/netxen_nic_ctx.c
index 4754f5cffad0..9f8ae4719e2f 100644
--- a/drivers/net/netxen/netxen_nic_ctx.c
+++ b/drivers/net/netxen/netxen_nic_ctx.c
@@ -684,10 +684,8 @@ int netxen_alloc_hw_resources(struct netxen_adapter *adapter)
                         goto err_out_free;
         } else {
                 err = netxen_init_old_ctx(adapter);
-                if (err) {
-                        netxen_free_hw_resources(adapter);
-                        return err;
-                }
+                if (err)
+                        goto err_out_free;
         }
 
         return 0;
@@ -708,15 +706,18 @@ void netxen_free_hw_resources(struct netxen_adapter *adapter)
         int port = adapter->portnum;
 
         if (adapter->fw_major >= 4) {
-                nx_fw_cmd_destroy_tx_ctx(adapter);
                 nx_fw_cmd_destroy_rx_ctx(adapter);
+                nx_fw_cmd_destroy_tx_ctx(adapter);
         } else {
                 netxen_api_lock(adapter);
                 NXWR32(adapter, CRB_CTX_SIGNATURE_REG(port),
-                                NETXEN_CTX_RESET | port);
+                                NETXEN_CTX_D3_RESET | port);
                 netxen_api_unlock(adapter);
         }
 
+        /* Allow dma queues to drain after context reset */
+        msleep(20);
+
         recv_ctx = &adapter->recv_ctx;
 
         if (recv_ctx->hwctx != NULL) {
diff --git a/drivers/net/netxen/netxen_nic_hdr.h b/drivers/net/netxen/netxen_nic_hdr.h
index 3cc047844af3..824103675648 100644
--- a/drivers/net/netxen/netxen_nic_hdr.h
+++ b/drivers/net/netxen/netxen_nic_hdr.h
@@ -853,6 +853,7 @@ enum {
 #define NX_PEG_TUNE_CAPABILITY          (NETXEN_CAM_RAM(0x02c))
 
 #define NETXEN_CAM_RAM_DMA_WATCHDOG_CTRL                (0x14)
+#define NETXEN_PEG_ALIVE_COUNTER        (NETXEN_CAM_RAM(0xb0))
 
 #define ISR_MSI_INT_TRIGGER(FUNC) (NETXEN_PCIX_PS_REG(PCIX_MSI_F(FUNC)))
 #define ISR_LEGACY_INT_TRIGGERED(VAL)   (((VAL) & 0x300) == 0x200)
diff --git a/drivers/net/netxen/netxen_nic_hw.c b/drivers/net/netxen/netxen_nic_hw.c
index ce3b89d2cbb6..b9123d445c96 100644
--- a/drivers/net/netxen/netxen_nic_hw.c
+++ b/drivers/net/netxen/netxen_nic_hw.c
@@ -461,13 +461,14 @@ netxen_send_cmd_descs(struct netxen_adapter *adapter,
         i = 0;
 
         tx_ring = adapter->tx_ring;
-        netif_tx_lock_bh(adapter->netdev);
+        __netif_tx_lock_bh(tx_ring->txq);
 
         producer = tx_ring->producer;
         consumer = tx_ring->sw_consumer;
 
-        if (nr_desc >= find_diff_among(producer, consumer, tx_ring->num_desc)) {
-                netif_tx_unlock_bh(adapter->netdev);
+        if (nr_desc >= netxen_tx_avail(tx_ring)) {
+                netif_tx_stop_queue(tx_ring->txq);
+                __netif_tx_unlock_bh(tx_ring->txq);
                 return -EBUSY;
         }
 
@@ -490,7 +491,7 @@ netxen_send_cmd_descs(struct netxen_adapter *adapter,
 
         netxen_nic_update_cmd_producer(adapter, tx_ring);
 
-        netif_tx_unlock_bh(adapter->netdev);
+        __netif_tx_unlock_bh(tx_ring->txq);
 
         return 0;
 }
diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c
index 055bb61d6e77..7acf204e38c9 100644
--- a/drivers/net/netxen/netxen_nic_init.c
+++ b/drivers/net/netxen/netxen_nic_init.c
@@ -184,6 +184,13 @@ void netxen_free_sw_resources(struct netxen_adapter *adapter)
         kfree(recv_ctx->rds_rings);
 
 skip_rds:
+        if (recv_ctx->sds_rings == NULL)
+                goto skip_sds;
+
+        for(ring = 0; ring < adapter->max_sds_rings; ring++)
+                recv_ctx->sds_rings[ring].consumer = 0;
+
+skip_sds:
         if (adapter->tx_ring == NULL)
                 return;
 
@@ -214,6 +221,7 @@ int netxen_alloc_sw_resources(struct netxen_adapter *adapter)
         adapter->tx_ring = tx_ring;
 
         tx_ring->num_desc = adapter->num_txd;
+        tx_ring->txq = netdev_get_tx_queue(netdev, 0);
 
         cmd_buf_arr = vmalloc(TX_BUFF_RINGSIZE(tx_ring));
         if (cmd_buf_arr == NULL) {
@@ -684,11 +692,84 @@ int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose)
 }
 
 int
+netxen_need_fw_reset(struct netxen_adapter *adapter)
+{
+        u32 count, old_count;
+        u32 val, version, major, minor, build;
+        int i, timeout;
+        u8 fw_type;
+
+        /* NX2031 firmware doesn't support heartbit */
+        if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
+                return 1;
+
+        /* last attempt had failed */
+        if (NXRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
+                return 1;
+
+        old_count = count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
+
+        for (i = 0; i < 10; i++) {
+
+                timeout = msleep_interruptible(200);
+                if (timeout) {
+                        NXWR32(adapter, CRB_CMDPEG_STATE,
+                                        PHAN_INITIALIZE_FAILED);
+                        return -EINTR;
+                }
+
+                count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
+                if (count != old_count)
+                        break;
+        }
+
+        /* firmware is dead */
+        if (count == old_count)
+                return 1;
+
+        /* check if we have got newer or different file firmware */
+        if (adapter->fw) {
+
+                const struct firmware *fw = adapter->fw;
+
+                val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_VERSION_OFFSET]);
+                version = NETXEN_DECODE_VERSION(val);
+
+                major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
+                minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
+                build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
+
+                if (version > NETXEN_VERSION_CODE(major, minor, build))
+                        return 1;
+
+                if (version == NETXEN_VERSION_CODE(major, minor, build)) {
+
+                        val = NXRD32(adapter, NETXEN_MIU_MN_CONTROL);
+                        fw_type = (val & 0x4) ?
+                                NX_P3_CT_ROMIMAGE : NX_P3_MN_ROMIMAGE;
+
+                        if (adapter->fw_type != fw_type)
+                                return 1;
+                }
+        }
+
+        return 0;
+}
+
+static char *fw_name[] = {
+        "nxromimg.bin", "nx3fwct.bin", "nx3fwmn.bin", "flash",
+};
+
+int
 netxen_load_firmware(struct netxen_adapter *adapter)
 {
         u64 *ptr64;
         u32 i, flashaddr, size;
         const struct firmware *fw = adapter->fw;
+        struct pci_dev *pdev = adapter->pdev;
+
+        dev_info(&pdev->dev, "loading firmware from %s\n",
+                        fw_name[adapter->fw_type]);
 
         if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
                 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 1);
@@ -756,7 +837,7 @@ static int
 netxen_validate_firmware(struct netxen_adapter *adapter, const char *fwname)
 {
         __le32 val;
-        u32 major, minor, build, ver, min_ver, bios;
+        u32 ver, min_ver, bios;
         struct pci_dev *pdev = adapter->pdev;
         const struct firmware *fw = adapter->fw;
 
@@ -768,21 +849,18 @@ netxen_validate_firmware(struct netxen_adapter *adapter, const char *fwname)
                 return -EINVAL;
 
         val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_VERSION_OFFSET]);
-        major = (__force u32)val & 0xff;
-        minor = ((__force u32)val >> 8) & 0xff;
-        build = (__force u32)val >> 16;
 
         if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
                 min_ver = NETXEN_VERSION_CODE(4, 0, 216);
         else
                 min_ver = NETXEN_VERSION_CODE(3, 4, 216);
 
-        ver = NETXEN_VERSION_CODE(major, minor, build);
+        ver = NETXEN_DECODE_VERSION(val);
 
-        if ((major > _NETXEN_NIC_LINUX_MAJOR) || (ver < min_ver)) {
+        if ((_major(ver) > _NETXEN_NIC_LINUX_MAJOR) || (ver < min_ver)) {
                 dev_err(&pdev->dev,
                                 "%s: firmware version %d.%d.%d unsupported\n",
-                                fwname, major, minor, build);
+                                fwname, _major(ver), _minor(ver), _build(ver));
                 return -EINVAL;
         }
 
@@ -798,22 +876,21 @@ netxen_validate_firmware(struct netxen_adapter *adapter, const char *fwname)
         if (netxen_rom_fast_read(adapter,
                         NX_FW_VERSION_OFFSET, (int *)&val))
                 return -EIO;
-        major = (__force u32)val & 0xff;
-        minor = ((__force u32)val >> 8) & 0xff;
-        build = (__force u32)val >> 16;
-        if (NETXEN_VERSION_CODE(major, minor, build) > ver)
+        val = NETXEN_DECODE_VERSION(val);
+        if (val > ver) {
+                dev_info(&pdev->dev, "%s: firmware is older than flash\n",
+                                fwname);
                 return -EINVAL;
+        }
 
         NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
         return 0;
 }
 
-static char *fw_name[] = { "nxromimg.bin", "nx3fwct.bin", "nx3fwmn.bin" };
-
 void netxen_request_firmware(struct netxen_adapter *adapter)
 {
         u32 capability, flashed_ver;
-        int fw_type;
+        u8 fw_type;
         struct pci_dev *pdev = adapter->pdev;
         int rc = 0;
 
@@ -830,6 +907,8 @@ request_mn:
 
         netxen_rom_fast_read(adapter,
                         NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
+        flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
+
         if (flashed_ver >= NETXEN_VERSION_CODE(4, 0, 220)) {
                 capability = NXRD32(adapter, NX_PEG_TUNE_CAPABILITY);
                 if (capability & NX_PEG_TUNE_MN_PRESENT) {
@@ -838,6 +917,10 @@ request_mn:
                 }
         }
 
+        fw_type = NX_FLASH_ROMIMAGE;
+        adapter->fw = NULL;
+        goto done;
+
 request_fw:
         rc = request_firmware(&adapter->fw, fw_name[fw_type], &pdev->dev);
         if (rc != 0) {
@@ -846,6 +929,7 @@ request_fw:
                         goto request_mn;
                 }
 
+                fw_type = NX_FLASH_ROMIMAGE;
                 adapter->fw = NULL;
                 goto done;
         }
@@ -859,16 +943,13 @@ request_fw:
                         goto request_mn;
                 }
 
+                fw_type = NX_FLASH_ROMIMAGE;
                 adapter->fw = NULL;
                 goto done;
         }
 
 done:
-        if (adapter->fw)
-                dev_info(&pdev->dev, "loading firmware from file %s\n",
-                                fw_name[fw_type]);
-        else
-                dev_info(&pdev->dev, "loading firmware from flash\n");
+        adapter->fw_type = fw_type;
 }
 
 
@@ -1327,10 +1408,10 @@ int netxen_process_cmd_ring(struct netxen_adapter *adapter)
                 smp_mb();
 
                 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
-                        netif_tx_lock(netdev);
+                        __netif_tx_lock(tx_ring->txq, smp_processor_id());
                         if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
                                 netif_wake_queue(netdev);
-                        netif_tx_unlock(netdev);
+                        __netif_tx_unlock(tx_ring->txq);
                 }
         }
         /*
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
index 2919a2d12bf4..3cd8cfcf627b 100644
--- a/drivers/net/netxen/netxen_nic_main.c
+++ b/drivers/net/netxen/netxen_nic_main.c
@@ -215,13 +215,13 @@ netxen_napi_disable(struct netxen_adapter *adapter)
 
         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
                 sds_ring = &recv_ctx->sds_rings[ring];
-                napi_disable(&sds_ring->napi);
                 netxen_nic_disable_int(sds_ring);
-                synchronize_irq(sds_ring->irq);
+                napi_synchronize(&sds_ring->napi);
+                napi_disable(&sds_ring->napi);
         }
 }
 
-static int nx_set_dma_mask(struct netxen_adapter *adapter, uint8_t revision_id)
+static int nx_set_dma_mask(struct netxen_adapter *adapter)
 {
         struct pci_dev *pdev = adapter->pdev;
         uint64_t mask, cmask;
@@ -229,19 +229,17 @@ static int nx_set_dma_mask(struct netxen_adapter *adapter, uint8_t revision_id)
         adapter->pci_using_dac = 0;
 
         mask = DMA_BIT_MASK(32);
-        /*
-         * Consistent DMA mask is set to 32 bit because it cannot be set to
-         * 35 bits. For P3 also leave it at 32 bits for now. Only the rings
-         * come off this pool.
-         */
         cmask = DMA_BIT_MASK(32);
 
+        if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
 #ifndef CONFIG_IA64
-        if (revision_id >= NX_P3_B0)
-                mask = DMA_BIT_MASK(39);
-        else if (revision_id == NX_P2_C1)
                 mask = DMA_BIT_MASK(35);
 #endif
+        } else {
+                mask = DMA_BIT_MASK(39);
+                cmask = mask;
+        }
+
         if (pci_set_dma_mask(pdev, mask) == 0 &&
                 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
                 adapter->pci_using_dac = 1;
@@ -256,7 +254,7 @@ static int
 nx_update_dma_mask(struct netxen_adapter *adapter)
 {
         int change, shift, err;
-        uint64_t mask, old_mask;
+        uint64_t mask, old_mask, old_cmask;
         struct pci_dev *pdev = adapter->pdev;
 
         change = 0;
@@ -272,14 +270,29 @@ nx_update_dma_mask(struct netxen_adapter *adapter)
 
         if (change) {
                 old_mask = pdev->dma_mask;
+                old_cmask = pdev->dev.coherent_dma_mask;
+
                 mask = (1ULL<<(32+shift)) - 1;
 
                 err = pci_set_dma_mask(pdev, mask);
                 if (err)
-                        return pci_set_dma_mask(pdev, old_mask);
+                        goto err_out;
+
+                if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
+
+                        err = pci_set_consistent_dma_mask(pdev, mask);
+                        if (err)
+                                goto err_out;
+                }
+                dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
         }
 
         return 0;
+
+err_out:
+        pci_set_dma_mask(pdev, old_mask);
+        pci_set_consistent_dma_mask(pdev, old_cmask);
+        return err;
 }
 
 static void netxen_check_options(struct netxen_adapter *adapter)
@@ -718,6 +731,10 @@ netxen_start_firmware(struct netxen_adapter *adapter, int request_fw)
         if (request_fw)
                 netxen_request_firmware(adapter);
 
+        err = netxen_need_fw_reset(adapter);
+        if (err <= 0)
+                return err;
+
         if (first_boot != 0x55555555) {
                 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
                 netxen_pinit_from_rom(adapter, 0);
@@ -829,11 +846,11 @@ netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
 
         adapter->ahw.linkup = 0;
 
-        netxen_napi_enable(adapter);
-
         if (adapter->max_sds_rings > 1)
                 netxen_config_rss(adapter, 1);
 
+        netxen_napi_enable(adapter);
+
         if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
                 netxen_linkevent_request(adapter, 1);
         else
@@ -847,8 +864,9 @@ netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
 static void
 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
 {
+        spin_lock(&adapter->tx_clean_lock);
         netif_carrier_off(netdev);
-        netif_stop_queue(netdev);
+        netif_tx_disable(netdev);
 
         if (adapter->stop_port)
                 adapter->stop_port(adapter);
@@ -859,9 +877,10 @@ netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
         netxen_napi_disable(adapter);
 
         netxen_release_tx_buffers(adapter);
+        spin_unlock(&adapter->tx_clean_lock);
 
-        FLUSH_SCHEDULED_WORK();
         del_timer_sync(&adapter->watchdog_timer);
+        FLUSH_SCHEDULED_WORK();
 }
 
 
@@ -939,8 +958,8 @@ err_out_free_sw:
 static void
 netxen_nic_detach(struct netxen_adapter *adapter)
 {
-        netxen_release_rx_buffers(adapter);
         netxen_free_hw_resources(adapter);
+        netxen_release_rx_buffers(adapter);
         netxen_nic_free_irq(adapter);
         netxen_free_sw_resources(adapter);
 
@@ -1000,7 +1019,7 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
         revision_id = pdev->revision;
         adapter->ahw.revision_id = revision_id;
 
-        err = nx_set_dma_mask(adapter, revision_id);
+        err = nx_set_dma_mask(adapter);
         if (err)
                 goto err_out_free_netdev;
 
@@ -1529,10 +1548,12 @@ static int netxen_nic_check_temp(struct netxen_adapter *adapter)
                 printk(KERN_ALERT
                        "%s: Device temperature %d degrees C exceeds"
                        " maximum allowed. Hardware has been shut down.\n",
-                       netxen_nic_driver_name, temp_val);
+                       netdev->name, temp_val);
+
+                netif_device_detach(netdev);
+                netxen_nic_down(adapter, netdev);
+                netxen_nic_detach(adapter);
 
-                netif_carrier_off(netdev);
-                netif_stop_queue(netdev);
                 rv = 1;
         } else if (temp_state == NX_TEMP_WARN) {
                 if (adapter->temp == NX_TEMP_NORMAL) {
@@ -1540,13 +1561,13 @@ static int netxen_nic_check_temp(struct netxen_adapter *adapter)
                                "%s: Device temperature %d degrees C "
                                "exceeds operating range."
                                " Immediate action needed.\n",
-                               netxen_nic_driver_name, temp_val);
+                               netdev->name, temp_val);
                 }
         } else {
                 if (adapter->temp == NX_TEMP_WARN) {
                         printk(KERN_INFO
                                "%s: Device temperature is now %d degrees C"
-                               " in normal range.\n", netxen_nic_driver_name,
+                               " in normal range.\n", netdev->name,
                                temp_val);
                 }
         }
@@ -1619,7 +1640,7 @@ void netxen_watchdog_task(struct work_struct *work)
         struct netxen_adapter *adapter =
                 container_of(work, struct netxen_adapter, watchdog_task);
 
-        if ((adapter->portnum  == 0) && netxen_nic_check_temp(adapter))
+        if (netxen_nic_check_temp(adapter))
                 return;
 
         if (!adapter->has_link_events)
@@ -1641,6 +1662,9 @@ static void netxen_tx_timeout_task(struct work_struct *work)
         struct netxen_adapter *adapter =
                 container_of(work, struct netxen_adapter, tx_timeout_task);
 
+        if (!netif_running(adapter->netdev))
+                return;
+
         printk(KERN_ERR "%s %s: transmit timeout, resetting.\n",
                netxen_nic_driver_name, adapter->netdev->name);
 
@@ -1753,7 +1777,8 @@ static int netxen_nic_poll(struct napi_struct *napi, int budget)
 
         if ((work_done < budget) && tx_complete) {
                 napi_complete(&sds_ring->napi);
-                netxen_nic_enable_int(sds_ring);
+                if (netif_running(adapter->netdev))
+                        netxen_nic_enable_int(sds_ring);
         }
 
         return work_done;
diff --git a/drivers/net/pci-skeleton.c b/drivers/net/pci-skeleton.c
index 8c1f6988f398..89f7b2ad5231 100644
--- a/drivers/net/pci-skeleton.c
+++ b/drivers/net/pci-skeleton.c
@@ -105,7 +105,7 @@ IVc. Errata
 
 static char version[] __devinitdata =
 KERN_INFO NETDRV_DRIVER_LOAD_MSG "\n"
-KERN_INFO "  Support available from http://foo.com/bar/baz.html\n";
+"  Support available from http://foo.com/bar/baz.html\n";
 
 /* define to 1 to enable PIO instead of MMIO */
 #undef USE_IO_OPS
diff --git a/drivers/net/pcmcia/3c589_cs.c b/drivers/net/pcmcia/3c589_cs.c
index ec7cf5ac4f05..690b9c76d34e 100644
--- a/drivers/net/pcmcia/3c589_cs.c
+++ b/drivers/net/pcmcia/3c589_cs.c
@@ -156,6 +156,7 @@ static struct net_device_stats *el3_get_stats(struct net_device *dev);
 static int el3_rx(struct net_device *dev);
 static int el3_close(struct net_device *dev);
 static void el3_tx_timeout(struct net_device *dev);
+static void set_rx_mode(struct net_device *dev);
 static void set_multicast_list(struct net_device *dev);
 static const struct ethtool_ops netdev_ethtool_ops;
 
@@ -488,8 +489,7 @@ static void tc589_reset(struct net_device *dev)
     /* Switch to register set 1 for normal use. */
     EL3WINDOW(1);
 
-    /* Accept b-cast and phys addr only. */
-    outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
+    set_rx_mode(dev);
     outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
     outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
     outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
@@ -700,7 +700,7 @@ static irqreturn_t el3_interrupt(int irq, void *dev_id)
                 if (fifo_diag & 0x2000) {
                     /* Rx underrun */
                     tc589_wait_for_completion(dev, RxReset);
-                    set_multicast_list(dev);
+                    set_rx_mode(dev);
                     outw(RxEnable, ioaddr + EL3_CMD);
                 }
                 outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD);
@@ -905,14 +905,11 @@ static int el3_rx(struct net_device *dev)
     return 0;
 }
 
-static void set_multicast_list(struct net_device *dev)
+static void set_rx_mode(struct net_device *dev)
 {
-    struct el3_private *lp = netdev_priv(dev);
-    struct pcmcia_device *link = lp->p_dev;
     unsigned int ioaddr = dev->base_addr;
     u16 opts = SetRxFilter | RxStation | RxBroadcast;
 
-    if (!pcmcia_dev_present(link)) return;
     if (dev->flags & IFF_PROMISC)
         opts |= RxMulticast | RxProm;
     else if (dev->mc_count || (dev->flags & IFF_ALLMULTI))
@@ -920,6 +917,16 @@ static void set_multicast_list(struct net_device *dev)
     outw(opts, ioaddr + EL3_CMD);
 }
 
+static void set_multicast_list(struct net_device *dev)
+{
+        struct el3_private *priv = netdev_priv(dev);
+        unsigned long flags;
+
+        spin_lock_irqsave(&priv->lock, flags);
+        set_rx_mode(dev);
+        spin_unlock_irqrestore(&priv->lock, flags);
+}
+
 static int el3_close(struct net_device *dev)
 {
     struct el3_private *lp = netdev_priv(dev);
diff --git a/drivers/net/pcmcia/ibmtr_cs.c b/drivers/net/pcmcia/ibmtr_cs.c
index f51944b28cfa..06618af1a468 100644
--- a/drivers/net/pcmcia/ibmtr_cs.c
+++ b/drivers/net/pcmcia/ibmtr_cs.c
@@ -298,14 +298,11 @@ static int __devinit ibmtr_config(struct pcmcia_device *link)
 
     strcpy(info->node.dev_name, dev->name);
 
-    printk(KERN_INFO "%s: port %#3lx, irq %d,",
-           dev->name, dev->base_addr, dev->irq);
-    printk (" mmio %#5lx,", (u_long)ti->mmio);
-    printk (" sram %#5lx,", (u_long)ti->sram_base << 12);
-    printk ("\n" KERN_INFO "  hwaddr=");
-    for (i = 0; i < TR_ALEN; i++)
-        printk("%02X", dev->dev_addr[i]);
-    printk("\n");
+    printk(KERN_INFO
+           "%s: port %#3lx, irq %d,  mmio %#5lx, sram %#5lx, hwaddr=%pM\n",
+           dev->name, dev->base_addr, dev->irq,
+           (u_long)ti->mmio, (u_long)(ti->sram_base << 12),
+           dev->dev_addr);
     return 0;
 
 cs_failed:
diff --git a/drivers/net/pcmcia/nmclan_cs.c b/drivers/net/pcmcia/nmclan_cs.c
index 02ef63ed1f99..36de91baf238 100644
--- a/drivers/net/pcmcia/nmclan_cs.c
+++ b/drivers/net/pcmcia/nmclan_cs.c
@@ -1425,15 +1425,12 @@ static void BuildLAF(int *ladrf, int *adr)
   ladrf[byte] |= (1 << (hashcode & 7));
 
 #ifdef PCMCIA_DEBUG
-  if (pc_debug > 2) {
-    printk(KERN_DEBUG "    adr =");
-    for (i = 0; i < 6; i++)
-      printk(" %02X", adr[i]);
-    printk("\n" KERN_DEBUG "    hashcode = %d(decimal), ladrf[0:63]"
-           " =", hashcode);
-    for (i = 0; i < 8; i++)
-      printk(" %02X", ladrf[i]);
-    printk("\n");
+  if (pc_debug > 2)
+    printk(KERN_DEBUG "    adr =%pM\n", adr);
+  printk(KERN_DEBUG "    hashcode = %d(decimal), ladrf[0:63] =", hashcode);
+  for (i = 0; i < 8; i++)
+    printk(KERN_CONT " %02X", ladrf[i]);
+  printk(KERN_CONT "\n");
   }
 #endif
 } /* BuildLAF */
diff --git a/drivers/net/pcmcia/pcnet_cs.c b/drivers/net/pcmcia/pcnet_cs.c
index 652a36888361..9ef1c1bfa83d 100644
--- a/drivers/net/pcmcia/pcnet_cs.c
+++ b/drivers/net/pcmcia/pcnet_cs.c
@@ -1727,6 +1727,7 @@ static struct pcmcia_device_id pcnet_ids[] = {
         PCMCIA_DEVICE_PROD_ID12("PRETEC", "Ethernet CompactLAN 10BaseT 3.3V", 0xebf91155, 0x7f5a4f50),
         PCMCIA_DEVICE_PROD_ID12("Psion Dacom", "Gold Card Ethernet", 0xf5f025c2, 0x3a30e110),
         PCMCIA_DEVICE_PROD_ID12("=RELIA==", "Ethernet", 0xcdd0644a, 0x00b2e941),
+        PCMCIA_DEVICE_PROD_ID12("RIOS Systems Co.", "PC CARD3 ETHERNET", 0x7dd33481, 0x10b41826),
         PCMCIA_DEVICE_PROD_ID12("RP", "1625B Ethernet NE2000 Compatible", 0xe3e66e22, 0xb96150df),
         PCMCIA_DEVICE_PROD_ID12("RPTI", "EP400 Ethernet NE2000 Compatible", 0xdc6f88fd, 0x4a7e2ae0),
         PCMCIA_DEVICE_PROD_ID12("RPTI", "EP401 Ethernet NE2000 Compatible", 0xdc6f88fd, 0x4bcbd7fd),
diff --git a/drivers/net/pcnet32.c b/drivers/net/pcnet32.c
index 1c35e1d637a0..a646a445fda9 100644
--- a/drivers/net/pcnet32.c
+++ b/drivers/net/pcnet32.c
@@ -485,7 +485,7 @@ static void pcnet32_realloc_tx_ring(struct net_device *dev,
                                            &new_ring_dma_addr);
         if (new_tx_ring == NULL) {
                 if (netif_msg_drv(lp))
-                        printk("\n" KERN_ERR
+                        printk(KERN_ERR
                                "%s: Consistent memory allocation failed.\n",
                                dev->name);
                 return;
@@ -496,7 +496,7 @@ static void pcnet32_realloc_tx_ring(struct net_device *dev,
                                 GFP_ATOMIC);
         if (!new_dma_addr_list) {
                 if (netif_msg_drv(lp))
-                        printk("\n" KERN_ERR
+                        printk(KERN_ERR
                                "%s: Memory allocation failed.\n", dev->name);
                 goto free_new_tx_ring;
         }
@@ -505,7 +505,7 @@ static void pcnet32_realloc_tx_ring(struct net_device *dev,
                                 GFP_ATOMIC);
         if (!new_skb_list) {
                 if (netif_msg_drv(lp))
-                        printk("\n" KERN_ERR
+                        printk(KERN_ERR
                                "%s: Memory allocation failed.\n", dev->name);
                 goto free_new_lists;
         }
@@ -563,7 +563,7 @@ static void pcnet32_realloc_rx_ring(struct net_device *dev,
                                            &new_ring_dma_addr);
         if (new_rx_ring == NULL) {
                 if (netif_msg_drv(lp))
-                        printk("\n" KERN_ERR
+                        printk(KERN_ERR
                                "%s: Consistent memory allocation failed.\n",
                                dev->name);
                 return;
@@ -574,7 +574,7 @@ static void pcnet32_realloc_rx_ring(struct net_device *dev,
                                 GFP_ATOMIC);
         if (!new_dma_addr_list) {
                 if (netif_msg_drv(lp))
-                        printk("\n" KERN_ERR
+                        printk(KERN_ERR
                                "%s: Memory allocation failed.\n", dev->name);
                 goto free_new_rx_ring;
         }
@@ -583,7 +583,7 @@ static void pcnet32_realloc_rx_ring(struct net_device *dev,
                                 GFP_ATOMIC);
         if (!new_skb_list) {
                 if (netif_msg_drv(lp))
-                        printk("\n" KERN_ERR
+                        printk(KERN_ERR
                                "%s: Memory allocation failed.\n", dev->name);
                 goto free_new_lists;
         }
@@ -1611,8 +1611,11 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
                 if (pcnet32_dwio_read_csr(ioaddr, 0) == 4
                     && pcnet32_dwio_check(ioaddr)) {
                         a = &pcnet32_dwio;
-                } else
+                } else {
+                        if (pcnet32_debug & NETIF_MSG_PROBE)
+                                printk(KERN_ERR PFX "No access methods\n");
                         goto err_release_region;
+                }
         }
 
         chip_version =
@@ -1719,7 +1722,9 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
                 ret = -ENOMEM;
                 goto err_release_region;
         }
-        SET_NETDEV_DEV(dev, &pdev->dev);
+
+        if (pdev)
+                SET_NETDEV_DEV(dev, &pdev->dev);
 
         if (pcnet32_debug & NETIF_MSG_PROBE)
                 printk(KERN_INFO PFX "%s at %#3lx,", chipname, ioaddr);
@@ -1766,38 +1771,38 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
                 /* Version 0x2623 and 0x2624 */
                 if (((chip_version + 1) & 0xfffe) == 0x2624) {
                         i = a->read_csr(ioaddr, 80) & 0x0C00;   /* Check tx_start_pt */
-                        printk("\n" KERN_INFO "    tx_start_pt(0x%04x):", i);
+                        printk(KERN_INFO "    tx_start_pt(0x%04x):", i);
                         switch (i >> 10) {
                         case 0:
-                                printk("  20 bytes,");
+                                printk(KERN_CONT "  20 bytes,");
                                 break;
                         case 1:
-                                printk("  64 bytes,");
+                                printk(KERN_CONT "  64 bytes,");
                                 break;
                         case 2:
-                                printk(" 128 bytes,");
+                                printk(KERN_CONT " 128 bytes,");
                                 break;
                         case 3:
-                                printk("~220 bytes,");
+                                printk(KERN_CONT "~220 bytes,");
                                 break;
                         }
                         i = a->read_bcr(ioaddr, 18);    /* Check Burst/Bus control */
-                        printk(" BCR18(%x):", i & 0xffff);
+                        printk(KERN_CONT " BCR18(%x):", i & 0xffff);
                         if (i & (1 << 5))
-                                printk("BurstWrEn ");
+                                printk(KERN_CONT "BurstWrEn ");
                         if (i & (1 << 6))
-                                printk("BurstRdEn ");
+                                printk(KERN_CONT "BurstRdEn ");
                         if (i & (1 << 7))
-                                printk("DWordIO ");
+                                printk(KERN_CONT "DWordIO ");
                         if (i & (1 << 11))
-                                printk("NoUFlow ");
+                                printk(KERN_CONT "NoUFlow ");
                         i = a->read_bcr(ioaddr, 25);
-                        printk("\n" KERN_INFO "    SRAMSIZE=0x%04x,", i << 8);
+                        printk(KERN_INFO "    SRAMSIZE=0x%04x,", i << 8);
                         i = a->read_bcr(ioaddr, 26);
-                        printk(" SRAM_BND=0x%04x,", i << 8);
+                        printk(KERN_CONT " SRAM_BND=0x%04x,", i << 8);
                         i = a->read_bcr(ioaddr, 27);
                         if (i & (1 << 14))
-                                printk("LowLatRx");
+                                printk(KERN_CONT "LowLatRx");
                 }
         }
 
@@ -1818,7 +1823,6 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
 
         spin_lock_init(&lp->lock);
 
-        SET_NETDEV_DEV(dev, &pdev->dev);
         lp->name = chipname;
         lp->shared_irq = shared;
         lp->tx_ring_size = TX_RING_SIZE;        /* default tx ring size */
@@ -1852,12 +1856,6 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
             ((cards_found >= MAX_UNITS) || full_duplex[cards_found]))
                 lp->options |= PCNET32_PORT_FD;
 
-        if (!a) {
-                if (pcnet32_debug & NETIF_MSG_PROBE)
-                        printk(KERN_ERR PFX "No access methods\n");
-                ret = -ENODEV;
-                goto err_free_consistent;
-        }
         lp->a = *a;
 
         /* prior to register_netdev, dev->name is not yet correct */
@@ -1973,14 +1971,13 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
 
         return 0;
 
-      err_free_ring:
+err_free_ring:
         pcnet32_free_ring(dev);
-      err_free_consistent:
         pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block),
                             lp->init_block, lp->init_dma_addr);
-      err_free_netdev:
+err_free_netdev:
         free_netdev(dev);
-      err_release_region:
+err_release_region:
         release_region(ioaddr, PCNET32_TOTAL_SIZE);
         return ret;
 }
@@ -1996,7 +1993,7 @@ static int pcnet32_alloc_ring(struct net_device *dev, const char *name)
                                            &lp->tx_ring_dma_addr);
         if (lp->tx_ring == NULL) {
                 if (netif_msg_drv(lp))
-                        printk("\n" KERN_ERR PFX
+                        printk(KERN_ERR PFX
                                "%s: Consistent memory allocation failed.\n",
                                name);
                 return -ENOMEM;
@@ -2008,7 +2005,7 @@ static int pcnet32_alloc_ring(struct net_device *dev, const char *name)
                                            &lp->rx_ring_dma_addr);
         if (lp->rx_ring == NULL) {
                 if (netif_msg_drv(lp))
-                        printk("\n" KERN_ERR PFX
+                        printk(KERN_ERR PFX
                                "%s: Consistent memory allocation failed.\n",
                                name);
                 return -ENOMEM;
@@ -2018,7 +2015,7 @@ static int pcnet32_alloc_ring(struct net_device *dev, const char *name)
                                   GFP_ATOMIC);
         if (!lp->tx_dma_addr) {
                 if (netif_msg_drv(lp))
-                        printk("\n" KERN_ERR PFX
+                        printk(KERN_ERR PFX
                                "%s: Memory allocation failed.\n", name);
                 return -ENOMEM;
         }
@@ -2027,7 +2024,7 @@ static int pcnet32_alloc_ring(struct net_device *dev, const char *name)
                                   GFP_ATOMIC);
         if (!lp->rx_dma_addr) {
                 if (netif_msg_drv(lp))
-                        printk("\n" KERN_ERR PFX
+                        printk(KERN_ERR PFX
                                "%s: Memory allocation failed.\n", name);
                 return -ENOMEM;
         }
@@ -2036,7 +2033,7 @@ static int pcnet32_alloc_ring(struct net_device *dev, const char *name)
                                 GFP_ATOMIC);
         if (!lp->tx_skbuff) {
                 if (netif_msg_drv(lp))
-                        printk("\n" KERN_ERR PFX
+                        printk(KERN_ERR PFX
                                "%s: Memory allocation failed.\n", name);
                 return -ENOMEM;
         }
@@ -2045,7 +2042,7 @@ static int pcnet32_alloc_ring(struct net_device *dev, const char *name)
                                 GFP_ATOMIC);
         if (!lp->rx_skbuff) {
                 if (netif_msg_drv(lp))
-                        printk("\n" KERN_ERR PFX
+                        printk(KERN_ERR PFX
                                "%s: Memory allocation failed.\n", name);
                 return -ENOMEM;
         }
@@ -2089,6 +2086,7 @@ static void pcnet32_free_ring(struct net_device *dev)
 static int pcnet32_open(struct net_device *dev)
 {
         struct pcnet32_private *lp = netdev_priv(dev);
+        struct pci_dev *pdev = lp->pci_dev;
         unsigned long ioaddr = dev->base_addr;
         u16 val;
         int i;
@@ -2149,9 +2147,9 @@ static int pcnet32_open(struct net_device *dev)
         lp->a.write_csr(ioaddr, 124, val);
 
         /* Allied Telesyn AT 2700/2701 FX are 100Mbit only and do not negotiate */
-        if (lp->pci_dev->subsystem_vendor == PCI_VENDOR_ID_AT &&
-            (lp->pci_dev->subsystem_device == PCI_SUBDEVICE_ID_AT_2700FX ||
-             lp->pci_dev->subsystem_device == PCI_SUBDEVICE_ID_AT_2701FX)) {
+        if (pdev && pdev->subsystem_vendor == PCI_VENDOR_ID_AT &&
+            (pdev->subsystem_device == PCI_SUBDEVICE_ID_AT_2700FX ||
+             pdev->subsystem_device == PCI_SUBDEVICE_ID_AT_2701FX)) {
                 if (lp->options & PCNET32_PORT_ASEL) {
                         lp->options = PCNET32_PORT_FD | PCNET32_PORT_100;
                         if (netif_msg_link(lp))
diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c
index 33984b737233..22cdd451fb82 100644
--- a/drivers/net/phy/mdio-gpio.c
+++ b/drivers/net/phy/mdio-gpio.c
@@ -30,6 +30,7 @@
 
 #ifdef CONFIG_OF_GPIO
 #include <linux/of_gpio.h>
+#include <linux/of_mdio.h>
 #include <linux/of_platform.h>
 #endif
 
@@ -81,13 +82,12 @@ static struct mdiobb_ops mdio_gpio_ops = {
         .get_mdio_data = mdio_get,
 };
 
-static int __devinit mdio_gpio_bus_init(struct device *dev,
+static struct mii_bus * __devinit mdio_gpio_bus_init(struct device *dev,
                                         struct mdio_gpio_platform_data *pdata,
                                         int bus_id)
 {
         struct mii_bus *new_bus;
         struct mdio_gpio_info *bitbang;
-        int ret = -ENOMEM;
         int i;
 
         bitbang = kzalloc(sizeof(*bitbang), GFP_KERNEL);
@@ -104,8 +104,6 @@ static int __devinit mdio_gpio_bus_init(struct device *dev,
 
         new_bus->name = "GPIO Bitbanged MDIO",
 
-        ret = -ENODEV;
-
         new_bus->phy_mask = pdata->phy_mask;
         new_bus->irq = pdata->irqs;
         new_bus->parent = dev;
@@ -129,15 +127,8 @@ static int __devinit mdio_gpio_bus_init(struct device *dev,
 
         dev_set_drvdata(dev, new_bus);
 
-        ret = mdiobus_register(new_bus);
-        if (ret)
-                goto out_free_all;
-
-        return 0;
+        return new_bus;
 
-out_free_all:
-        dev_set_drvdata(dev, NULL);
-        gpio_free(bitbang->mdio);
 out_free_mdc:
         gpio_free(bitbang->mdc);
 out_free_bus:
@@ -145,30 +136,47 @@ out_free_bus:
 out_free_bitbang:
         kfree(bitbang);
 out:
-        return ret;
+        return NULL;
 }
 
-static void __devexit mdio_gpio_bus_destroy(struct device *dev)
+static void __devinit mdio_gpio_bus_deinit(struct device *dev)
 {
         struct mii_bus *bus = dev_get_drvdata(dev);
         struct mdio_gpio_info *bitbang = bus->priv;
 
-        mdiobus_unregister(bus);
-        free_mdio_bitbang(bus);
         dev_set_drvdata(dev, NULL);
-        gpio_free(bitbang->mdc);
         gpio_free(bitbang->mdio);
+        gpio_free(bitbang->mdc);
+        free_mdio_bitbang(bus);
         kfree(bitbang);
 }
 
+static void __devexit mdio_gpio_bus_destroy(struct device *dev)
+{
+        struct mii_bus *bus = dev_get_drvdata(dev);
+
+        mdiobus_unregister(bus);
+        mdio_gpio_bus_deinit(dev);
+}
+
 static int __devinit mdio_gpio_probe(struct platform_device *pdev)
 {
         struct mdio_gpio_platform_data *pdata = pdev->dev.platform_data;
+        struct mii_bus *new_bus;
+        int ret;
 
         if (!pdata)
                 return -ENODEV;
 
-        return mdio_gpio_bus_init(&pdev->dev, pdata, pdev->id);
+        new_bus = mdio_gpio_bus_init(&pdev->dev, pdata, pdev->id);
+        if (!new_bus)
+                return -ENODEV;
+
+        ret = mdiobus_register(new_bus);
+        if (ret)
+                mdio_gpio_bus_deinit(&pdev->dev);
+
+        return ret;
 }
 
 static int __devexit mdio_gpio_remove(struct platform_device *pdev)
@@ -179,29 +187,12 @@ static int __devexit mdio_gpio_remove(struct platform_device *pdev)
 }
 
 #ifdef CONFIG_OF_GPIO
-static void __devinit add_phy(struct mdio_gpio_platform_data *pdata,
-                              struct device_node *np)
-{
-        const u32 *data;
-        int len, id, irq;
-
-        data = of_get_property(np, "reg", &len);
-        if (!data || len != 4)
-                return;
-
-        id = *data;
-        pdata->phy_mask &= ~(1 << id);
-
-        irq = of_irq_to_resource(np, 0, NULL);
-        if (irq)
-                pdata->irqs[id] = irq;
-}
 
 static int __devinit mdio_ofgpio_probe(struct of_device *ofdev,
                                         const struct of_device_id *match)
 {
-        struct device_node *np = NULL;
         struct mdio_gpio_platform_data *pdata;
+        struct mii_bus *new_bus;
         int ret;
 
         pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
@@ -215,14 +206,18 @@ static int __devinit mdio_ofgpio_probe(struct of_device *ofdev,
 
         ret = of_get_gpio(ofdev->node, 1);
         if (ret < 0)
-                goto out_free;
+                goto out_free;
         pdata->mdio = ret;
 
-        while ((np = of_get_next_child(ofdev->node, np)))
-                if (!strcmp(np->type, "ethernet-phy"))
-                        add_phy(pdata, np);
+        new_bus = mdio_gpio_bus_init(&ofdev->dev, pdata, pdata->mdc);
+        if (!new_bus)
+                return -ENODEV;
 
-        return mdio_gpio_bus_init(&ofdev->dev, pdata, pdata->mdc);
+        ret = of_mdiobus_register(new_bus, ofdev->node);
+        if (ret)
+                mdio_gpio_bus_deinit(&ofdev->dev);
+
+        return ret;
 
 out_free:
         kfree(pdata);
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 61755cbd978e..eda94fcd4065 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -928,13 +928,32 @@ static void phy_state_machine(struct work_struct *work)
                                  * Otherwise, it's 0, and we're
                                  * still waiting for AN */
                                 if (err > 0) {
-                                        phydev->state = PHY_RUNNING;
+                                        err = phy_read_status(phydev);
+                                        if (err)
+                                                break;
+
+                                        if (phydev->link) {
+                                                phydev->state = PHY_RUNNING;
+                                                netif_carrier_on(phydev->attached_dev);
+                                        } else
+                                                phydev->state = PHY_NOLINK;
+                                        phydev->adjust_link(phydev->attached_dev);
                                 } else {
                                         phydev->state = PHY_AN;
                                         phydev->link_timeout = PHY_AN_TIMEOUT;
                                 }
-                        } else
-                                phydev->state = PHY_RUNNING;
+                        } else {
+                                err = phy_read_status(phydev);
+                                if (err)
+                                        break;
+
+                                if (phydev->link) {
+                                        phydev->state = PHY_RUNNING;
+                                        netif_carrier_on(phydev->attached_dev);
+                                } else
+                                        phydev->state = PHY_NOLINK;
+                                phydev->adjust_link(phydev->attached_dev);
+                        }
                         break;
         }
 
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index eba937c46376..b10fedd82143 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -134,8 +134,10 @@ int phy_scan_fixups(struct phy_device *phydev)
 
                         err = fixup->run(phydev);
 
-                        if (err < 0)
+                        if (err < 0) {
+                                mutex_unlock(&phy_fixup_lock);
                                 return err;
+                        }
                 }
         }
         mutex_unlock(&phy_fixup_lock);
diff --git a/drivers/net/plip.c b/drivers/net/plip.c
index 7a62f781fef2..2ca8b0d84ee2 100644
--- a/drivers/net/plip.c
+++ b/drivers/net/plip.c
@@ -270,6 +270,9 @@ static const struct net_device_ops plip_netdev_ops = {
         .ndo_stop                = plip_close,
         .ndo_start_xmit          = plip_tx_packet,
         .ndo_do_ioctl            = plip_ioctl,
+        .ndo_change_mtu          = eth_change_mtu,
+        .ndo_set_mac_address     = eth_mac_addr,
+        .ndo_validate_addr       = eth_validate_addr,
 };
 
 /* Entry point of PLIP driver.
diff --git a/drivers/net/ppp_async.c b/drivers/net/ppp_async.c
index 17c116bb332c..6de8399d6dd9 100644
--- a/drivers/net/ppp_async.c
+++ b/drivers/net/ppp_async.c
@@ -356,6 +356,7 @@ ppp_asynctty_receive(struct tty_struct *tty, const unsigned char *buf,
         if (!skb_queue_empty(&ap->rqueue))
                 tasklet_schedule(&ap->tsk);
         ap_put(ap);
+        tty_unthrottle(tty);
 }
 
 static void
diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c
index 639d11bc444e..cd37d739ac74 100644
--- a/drivers/net/ppp_generic.c
+++ b/drivers/net/ppp_generic.c
@@ -1384,7 +1384,7 @@ static int ppp_mp_explode(struct ppp *ppp, struct sk_buff *skb)
 
         /* create a     fragment for each channel */
         bits = B;
-        while (nfree > 0 &&     len     > 0) {
+        while (len      > 0) {
                 list = list->next;
                 if (list ==     &ppp->channels) {
                         i =     0;
@@ -1431,29 +1431,31 @@ static int ppp_mp_explode(struct ppp *ppp, struct sk_buff *skb)
                 *otherwise divide it according to the speed
                 *of the channel we are going to transmit on
                 */
-                if (pch->speed == 0) {
-                        flen = totlen/nfree     ;
-                        if (nbigger > 0) {
-                                flen++;
-                                nbigger--;
-                        }
-                } else {
-                        flen = (((totfree - nzero)*(totlen + hdrlen*totfree)) /
-                                ((totspeed*totfree)/pch->speed)) - hdrlen;
-                        if (nbigger > 0) {
-                                flen += ((totfree - nzero)*pch->speed)/totspeed;
-                                nbigger -= ((totfree - nzero)*pch->speed)/
+                if (nfree > 0) {
+                        if (pch->speed == 0) {
+                                flen = totlen/nfree     ;
+                                if (nbigger > 0) {
+                                        flen++;
+                                        nbigger--;
+                                }
+                        } else {
+                                flen = (((totfree - nzero)*(totlen + hdrlen*totfree)) /
+                                        ((totspeed*totfree)/pch->speed)) - hdrlen;
+                                if (nbigger > 0) {
+                                        flen += ((totfree - nzero)*pch->speed)/totspeed;
+                                        nbigger -= ((totfree - nzero)*pch->speed)/
                                                         totspeed;
+                                }
                         }
+                        nfree--;
                 }
-                nfree--;
 
                 /*
                  *check if we are on the last channel or
                  *we exceded the lenght of the data     to
                  *fragment
                  */
-                if ((nfree == 0) || (flen > len))
+                if ((nfree <= 0) || (flen > len))
                         flen = len;
                 /*
                  *it is not worth to tx on slow channels:
@@ -1467,7 +1469,7 @@ static int ppp_mp_explode(struct ppp *ppp, struct sk_buff *skb)
                         continue;
                 }
 
-                mtu     = pch->chan->mtu + 2 - hdrlen;
+                mtu     = pch->chan->mtu - hdrlen;
                 if (mtu < 4)
                         mtu     = 4;
                 if (flen > mtu)
diff --git a/drivers/net/ppp_synctty.c b/drivers/net/ppp_synctty.c
index aa3d39f38e22..d2fa2db13586 100644
--- a/drivers/net/ppp_synctty.c
+++ b/drivers/net/ppp_synctty.c
@@ -397,6 +397,7 @@ ppp_sync_receive(struct tty_struct *tty, const unsigned char *buf,
         if (!skb_queue_empty(&ap->rqueue))
                 tasklet_schedule(&ap->tsk);
         sp_put(ap);
+        tty_unthrottle(tty);
 }
 
 static void
diff --git a/drivers/net/pppoe.c b/drivers/net/pppoe.c
index f0031f1f97e5..5f2090233d7b 100644
--- a/drivers/net/pppoe.c
+++ b/drivers/net/pppoe.c
@@ -1063,6 +1063,7 @@ static void *pppoe_seq_next(struct seq_file *seq, void *v, loff_t *pos)
         else {
                 int hash = hash_item(po->pppoe_pa.sid, po->pppoe_pa.remote);
 
+                po = NULL;
                 while (++hash < PPPOE_HASH_SIZE) {
                         po = pn->hash_table[hash];
                         if (po)
diff --git a/drivers/net/pppol2tp.c b/drivers/net/pppol2tp.c
index e7935d09c896..e0f9219a0aea 100644
--- a/drivers/net/pppol2tp.c
+++ b/drivers/net/pppol2tp.c
@@ -2680,6 +2680,7 @@ out_unregister_pppol2tp_proto:
 static void __exit pppol2tp_exit(void)
 {
         unregister_pppox_proto(PX_PROTO_OL2TP);
+        unregister_pernet_gen_device(pppol2tp_net_id, &pppol2tp_net_ops);
         proto_unregister(&pppol2tp_sk_proto);
 }
 
diff --git a/drivers/net/ps3_gelic_net.c b/drivers/net/ps3_gelic_net.c
index d1a5fb4d6acb..a3932c9f3406 100644
--- a/drivers/net/ps3_gelic_net.c
+++ b/drivers/net/ps3_gelic_net.c
@@ -1411,6 +1411,7 @@ static const struct net_device_ops gelic_netdevice_ops = {
         .ndo_set_multicast_list = gelic_net_set_multi,
         .ndo_change_mtu = gelic_net_change_mtu,
         .ndo_tx_timeout = gelic_net_tx_timeout,
+        .ndo_set_mac_address = eth_mac_addr,
         .ndo_validate_addr = eth_validate_addr,
 #ifdef CONFIG_NET_POLL_CONTROLLER
         .ndo_poll_controller = gelic_net_poll_controller,
diff --git a/drivers/net/ps3_gelic_wireless.c b/drivers/net/ps3_gelic_wireless.c
index b6b3ca9bdb21..6932b08d746b 100644
--- a/drivers/net/ps3_gelic_wireless.c
+++ b/drivers/net/ps3_gelic_wireless.c
@@ -2707,6 +2707,7 @@ static const struct net_device_ops gelic_wl_netdevice_ops = {
         .ndo_set_multicast_list = gelic_net_set_multi,
         .ndo_change_mtu = gelic_net_change_mtu,
         .ndo_tx_timeout = gelic_net_tx_timeout,
+        .ndo_set_mac_address = eth_mac_addr,
         .ndo_validate_addr = eth_validate_addr,
 #ifdef CONFIG_NET_POLL_CONTROLLER
         .ndo_poll_controller = gelic_net_poll_controller,
diff --git a/drivers/net/qlge/qlge.h b/drivers/net/qlge/qlge.h
index 156e02e8905d..6ed5317ab1c0 100644
--- a/drivers/net/qlge/qlge.h
+++ b/drivers/net/qlge/qlge.h
@@ -1607,6 +1607,8 @@ int ql_mb_get_fw_state(struct ql_adapter *qdev);
 int ql_cam_route_initialize(struct ql_adapter *qdev);
 int ql_read_mpi_reg(struct ql_adapter *qdev, u32 reg, u32 *data);
 int ql_mb_about_fw(struct ql_adapter *qdev);
+void ql_link_on(struct ql_adapter *qdev);
+void ql_link_off(struct ql_adapter *qdev);
 
 #if 1
 #define QL_ALL_DUMP
diff --git a/drivers/net/qlge/qlge_ethtool.c b/drivers/net/qlge/qlge_ethtool.c
index 37c99fe79770..eb6a9ee640ed 100644
--- a/drivers/net/qlge/qlge_ethtool.c
+++ b/drivers/net/qlge/qlge_ethtool.c
@@ -59,7 +59,7 @@ static int ql_update_ring_coalescing(struct ql_adapter *qdev)
                         cqicb->pkt_delay =
                             cpu_to_le16(qdev->tx_max_coalesced_frames);
                         cqicb->flags = FLAGS_LI;
-                        status = ql_write_cfg(qdev, cqicb, sizeof(cqicb),
+                        status = ql_write_cfg(qdev, cqicb, sizeof(*cqicb),
                                                 CFG_LCQ, rx_ring->cq_id);
                         if (status) {
                                 QPRINTK(qdev, IFUP, ERR,
@@ -82,7 +82,7 @@ static int ql_update_ring_coalescing(struct ql_adapter *qdev)
                         cqicb->pkt_delay =
                             cpu_to_le16(qdev->rx_max_coalesced_frames);
                         cqicb->flags = FLAGS_LI;
-                        status = ql_write_cfg(qdev, cqicb, sizeof(cqicb),
+                        status = ql_write_cfg(qdev, cqicb, sizeof(*cqicb),
                                                 CFG_LCQ, rx_ring->cq_id);
                         if (status) {
                                 QPRINTK(qdev, IFUP, ERR,
diff --git a/drivers/net/qlge/qlge_main.c b/drivers/net/qlge/qlge_main.c
index 90d1f76c0e8b..5768af17f168 100644
--- a/drivers/net/qlge/qlge_main.c
+++ b/drivers/net/qlge/qlge_main.c
@@ -214,6 +214,10 @@ int ql_write_cfg(struct ql_adapter *qdev, void *ptr, int size, u32 bit,
                 return -ENOMEM;
         }
 
+        status = ql_sem_spinlock(qdev, SEM_ICB_MASK);
+        if (status)
+                return status;
+
         status = ql_wait_cfg(qdev, bit);
         if (status) {
                 QPRINTK(qdev, IFUP, ERR,
@@ -221,12 +225,8 @@ int ql_write_cfg(struct ql_adapter *qdev, void *ptr, int size, u32 bit,
                 goto exit;
         }
 
-        status = ql_sem_spinlock(qdev, SEM_ICB_MASK);
-        if (status)
-                goto exit;
         ql_write32(qdev, ICB_L, (u32) map);
         ql_write32(qdev, ICB_H, (u32) (map >> 32));
-        ql_sem_unlock(qdev, SEM_ICB_MASK);      /* does flush too */
 
         mask = CFG_Q_MASK | (bit << 16);
         value = bit | (q_id << CFG_Q_SHIFT);
@@ -237,6 +237,7 @@ int ql_write_cfg(struct ql_adapter *qdev, void *ptr, int size, u32 bit,
          */
         status = ql_wait_cfg(qdev, bit);
 exit:
+        ql_sem_unlock(qdev, SEM_ICB_MASK);      /* does flush too */
         pci_unmap_single(qdev->pdev, map, size, direction);
         return status;
 }
@@ -412,6 +413,57 @@ exit:
         return status;
 }
 
+/* Set or clear MAC address in hardware. We sometimes
+ * have to clear it to prevent wrong frame routing
+ * especially in a bonding environment.
+ */
+static int ql_set_mac_addr(struct ql_adapter *qdev, int set)
+{
+        int status;
+        char zero_mac_addr[ETH_ALEN];
+        char *addr;
+
+        if (set) {
+                addr = &qdev->ndev->dev_addr[0];
+                QPRINTK(qdev, IFUP, DEBUG,
+                        "Set Mac addr %02x:%02x:%02x:%02x:%02x:%02x\n",
+                        addr[0], addr[1], addr[2], addr[3],
+                        addr[4], addr[5]);
+        } else {
+                memset(zero_mac_addr, 0, ETH_ALEN);
+                addr = &zero_mac_addr[0];
+                QPRINTK(qdev, IFUP, DEBUG,
+                                "Clearing MAC address on %s\n",
+                                qdev->ndev->name);
+        }
+        status = ql_sem_spinlock(qdev, SEM_MAC_ADDR_MASK);
+        if (status)
+                return status;
+        status = ql_set_mac_addr_reg(qdev, (u8 *) addr,
+                        MAC_ADDR_TYPE_CAM_MAC, qdev->func * MAX_CQ);
+        ql_sem_unlock(qdev, SEM_MAC_ADDR_MASK);
+        if (status)
+                QPRINTK(qdev, IFUP, ERR, "Failed to init mac "
+                        "address.\n");
+        return status;
+}
+
+void ql_link_on(struct ql_adapter *qdev)
+{
+        QPRINTK(qdev, LINK, ERR, "%s: Link is up.\n",
+                                 qdev->ndev->name);
+        netif_carrier_on(qdev->ndev);
+        ql_set_mac_addr(qdev, 1);
+}
+
+void ql_link_off(struct ql_adapter *qdev)
+{
+        QPRINTK(qdev, LINK, ERR, "%s: Link is down.\n",
+                                 qdev->ndev->name);
+        netif_carrier_off(qdev->ndev);
+        ql_set_mac_addr(qdev, 0);
+}
+
 /* Get a specific frame routing value from the CAM.
  * Used for debug and reg dump.
  */
@@ -1628,7 +1680,7 @@ static void ql_process_mac_tx_intr(struct ql_adapter *qdev,
         tx_ring = &qdev->tx_ring[mac_rsp->txq_idx];
         tx_ring_desc = &tx_ring->q[mac_rsp->tid];
         ql_unmap_send(qdev, tx_ring_desc, tx_ring_desc->map_cnt);
-        qdev->stats.tx_bytes += tx_ring_desc->map_cnt;
+        qdev->stats.tx_bytes += (tx_ring_desc->skb)->len;
         qdev->stats.tx_packets++;
         dev_kfree_skb(tx_ring_desc->skb);
         tx_ring_desc->skb = NULL;
@@ -1660,13 +1712,13 @@ static void ql_process_mac_tx_intr(struct ql_adapter *qdev,
 /* Fire up a handler to reset the MPI processor. */
 void ql_queue_fw_error(struct ql_adapter *qdev)
 {
-        netif_carrier_off(qdev->ndev);
+        ql_link_off(qdev);
         queue_delayed_work(qdev->workqueue, &qdev->mpi_reset_work, 0);
 }
 
 void ql_queue_asic_error(struct ql_adapter *qdev)
 {
-        netif_carrier_off(qdev->ndev);
+        ql_link_off(qdev);
         ql_disable_interrupts(qdev);
         /* Clear adapter up bit to signal the recovery
          * process that it shouldn't kill the reset worker
@@ -2104,7 +2156,7 @@ static int qlge_send(struct sk_buff *skb, struct net_device *ndev)
         }
         tx_ring_desc = &tx_ring->q[tx_ring->prod_idx];
         mac_iocb_ptr = tx_ring_desc->queue_entry;
-        memset((void *)mac_iocb_ptr, 0, sizeof(mac_iocb_ptr));
+        memset((void *)mac_iocb_ptr, 0, sizeof(*mac_iocb_ptr));
 
         mac_iocb_ptr->opcode = OPCODE_OB_MAC_IOCB;
         mac_iocb_ptr->tid = tx_ring_desc->index;
@@ -2743,7 +2795,7 @@ static int ql_start_tx_ring(struct ql_adapter *qdev, struct tx_ring *tx_ring)
 
         ql_init_tx_ring(qdev, tx_ring);
 
-        err = ql_write_cfg(qdev, wqicb, sizeof(wqicb), CFG_LRQ,
+        err = ql_write_cfg(qdev, wqicb, sizeof(*wqicb), CFG_LRQ,
                            (u16) tx_ring->wq_id);
         if (err) {
                 QPRINTK(qdev, IFUP, ERR, "Failed to load tx_ring.\n");
@@ -3008,7 +3060,7 @@ static int ql_start_rss(struct ql_adapter *qdev)
         int i;
         u8 *hash_id = (u8 *) ricb->hash_cq_id;
 
-        memset((void *)ricb, 0, sizeof(ricb));
+        memset((void *)ricb, 0, sizeof(*ricb));
 
         ricb->base_cq = qdev->rss_ring_first_cq_id | RSS_L4K;
         ricb->flags =
@@ -3030,7 +3082,7 @@ static int ql_start_rss(struct ql_adapter *qdev)
 
         QPRINTK(qdev, IFUP, DEBUG, "Initializing RSS.\n");
 
-        status = ql_write_cfg(qdev, ricb, sizeof(ricb), CFG_LR, 0);
+        status = ql_write_cfg(qdev, ricb, sizeof(*ricb), CFG_LR, 0);
         if (status) {
                 QPRINTK(qdev, IFUP, ERR, "Failed to load RICB.\n");
                 return status;
@@ -3039,25 +3091,40 @@ static int ql_start_rss(struct ql_adapter *qdev)
         return status;
 }
 
-/* Initialize the frame-to-queue routing. */
-static int ql_route_initialize(struct ql_adapter *qdev)
+static int ql_clear_routing_entries(struct ql_adapter *qdev)
 {
-        int status = 0;
-        int i;
+        int i, status = 0;
 
         status = ql_sem_spinlock(qdev, SEM_RT_IDX_MASK);
         if (status)
                 return status;
-
         /* Clear all the entries in the routing table. */
         for (i = 0; i < 16; i++) {
                 status = ql_set_routing_reg(qdev, i, 0, 0);
                 if (status) {
                         QPRINTK(qdev, IFUP, ERR,
-                                "Failed to init routing register for CAM packets.\n");
-                        goto exit;
+                                "Failed to init routing register for CAM "
+                                "packets.\n");
+                        break;
                 }
         }
+        ql_sem_unlock(qdev, SEM_RT_IDX_MASK);
+        return status;
+}
+
+/* Initialize the frame-to-queue routing. */
+static int ql_route_initialize(struct ql_adapter *qdev)
+{
+        int status = 0;
+
+        status = ql_sem_spinlock(qdev, SEM_RT_IDX_MASK);
+        if (status)
+                return status;
+
+        /* Clear all the entries in the routing table. */
+        status = ql_clear_routing_entries(qdev);
+        if (status)
+                goto exit;
 
         status = ql_set_routing_reg(qdev, RT_IDX_ALL_ERR_SLOT, RT_IDX_ERR, 1);
         if (status) {
@@ -3096,14 +3163,15 @@ exit:
 
 int ql_cam_route_initialize(struct ql_adapter *qdev)
 {
-        int status;
+        int status, set;
 
-        status = ql_sem_spinlock(qdev, SEM_MAC_ADDR_MASK);
-        if (status)
-                return status;
-        status = ql_set_mac_addr_reg(qdev, (u8 *) qdev->ndev->perm_addr,
-                             MAC_ADDR_TYPE_CAM_MAC, qdev->func * MAX_CQ);
-        ql_sem_unlock(qdev, SEM_MAC_ADDR_MASK);
+        /* If check if the link is up and use to
+         * determine if we are setting or clearing
+         * the MAC address in the CAM.
+         */
+        set = ql_read32(qdev, STS);
+        set &= qdev->port_link_up;
+        status = ql_set_mac_addr(qdev, set);
         if (status) {
                 QPRINTK(qdev, IFUP, ERR, "Failed to init mac address.\n");
                 return status;
@@ -3210,9 +3278,17 @@ static int ql_adapter_reset(struct ql_adapter *qdev)
 {
         u32 value;
         int status = 0;
-        unsigned long end_jiffies = jiffies +
-                max((unsigned long)1, usecs_to_jiffies(30));
+        unsigned long end_jiffies;
 
+        /* Clear all the entries in the routing table. */
+        status = ql_clear_routing_entries(qdev);
+        if (status) {
+                QPRINTK(qdev, IFUP, ERR, "Failed to clear routing bits.\n");
+                return status;
+        }
+
+        end_jiffies = jiffies +
+                max((unsigned long)1, usecs_to_jiffies(30));
         ql_write32(qdev, RST_FO, (RST_FO_FR << 16) | RST_FO_FR);
 
         do {
@@ -3252,7 +3328,7 @@ static int ql_adapter_down(struct ql_adapter *qdev)
         int i, status = 0;
         struct rx_ring *rx_ring;
 
-        netif_carrier_off(qdev->ndev);
+        ql_link_off(qdev);
 
         /* Don't kill the reset worker thread if we
          * are in the process of recovery.
@@ -3319,8 +3395,12 @@ static int ql_adapter_up(struct ql_adapter *qdev)
         }
         set_bit(QL_ADAPTER_UP, &qdev->flags);
         ql_alloc_rx_buffers(qdev);
-        if ((ql_read32(qdev, STS) & qdev->port_init))
-                netif_carrier_on(qdev->ndev);
+        /* If the port is initialized and the
+         * link is up the turn on the carrier.
+         */
+        if ((ql_read32(qdev, STS) & qdev->port_init) &&
+                        (ql_read32(qdev, STS) & qdev->port_link_up))
+                ql_link_on(qdev);
         ql_enable_interrupts(qdev);
         ql_enable_all_completion_interrupts(qdev);
         netif_tx_start_all_queues(qdev->ndev);
@@ -3346,11 +3426,6 @@ static int ql_get_adapter_resources(struct ql_adapter *qdev)
                 return -ENOMEM;
         }
         status = ql_request_irq(qdev);
-        if (status)
-                goto err_irq;
-        return status;
-err_irq:
-        ql_free_mem_resources(qdev);
         return status;
 }
 
@@ -3414,7 +3489,7 @@ static int ql_configure_rings(struct ql_adapter *qdev)
 
         for (i = 0; i < qdev->tx_ring_count; i++) {
                 tx_ring = &qdev->tx_ring[i];
-                memset((void *)tx_ring, 0, sizeof(tx_ring));
+                memset((void *)tx_ring, 0, sizeof(*tx_ring));
                 tx_ring->qdev = qdev;
                 tx_ring->wq_id = i;
                 tx_ring->wq_len = qdev->tx_ring_size;
@@ -3430,7 +3505,7 @@ static int ql_configure_rings(struct ql_adapter *qdev)
 
         for (i = 0; i < qdev->rx_ring_count; i++) {
                 rx_ring = &qdev->rx_ring[i];
-                memset((void *)rx_ring, 0, sizeof(rx_ring));
+                memset((void *)rx_ring, 0, sizeof(*rx_ring));
                 rx_ring->qdev = qdev;
                 rx_ring->cq_id = i;
                 rx_ring->cpu = i % cpu_cnt;     /* CPU to run handler on. */
@@ -3789,7 +3864,7 @@ static int __devinit ql_init_device(struct pci_dev *pdev,
         int pos, err = 0;
         u16 val16;
 
-        memset((void *)qdev, 0, sizeof(qdev));
+        memset((void *)qdev, 0, sizeof(*qdev));
         err = pci_enable_device(pdev);
         if (err) {
                 dev_err(&pdev->dev, "PCI device enable failed.\n");
@@ -3976,7 +4051,7 @@ static int __devinit qlge_probe(struct pci_dev *pdev,
                 pci_disable_device(pdev);
                 return err;
         }
-        netif_carrier_off(ndev);
+        ql_link_off(qdev);
         ql_display_dev_info(ndev);
         cards_found++;
         return 0;
diff --git a/drivers/net/qlge/qlge_mpi.c b/drivers/net/qlge/qlge_mpi.c
index 71afbf8b9c50..6685bd97da91 100644
--- a/drivers/net/qlge/qlge_mpi.c
+++ b/drivers/net/qlge/qlge_mpi.c
@@ -238,7 +238,7 @@ static void ql_link_up(struct ql_adapter *qdev, struct mbox_params *mbcp)
                                 &qdev->mpi_port_cfg_work, 0);
         }
 
-        netif_carrier_on(qdev->ndev);
+        ql_link_on(qdev);
 }
 
 static void ql_link_down(struct ql_adapter *qdev, struct mbox_params *mbcp)
@@ -251,7 +251,7 @@ static void ql_link_down(struct ql_adapter *qdev, struct mbox_params *mbcp)
         if (status)
                 QPRINTK(qdev, DRV, ERR, "Link down AEN broken!\n");
 
-        netif_carrier_off(qdev->ndev);
+        ql_link_off(qdev);
 }
 
 static int ql_sfp_in(struct ql_adapter *qdev, struct mbox_params *mbcp)
@@ -849,7 +849,7 @@ void ql_mpi_idc_work(struct work_struct *work)
         case MB_CMD_PORT_RESET:
         case MB_CMD_SET_PORT_CFG:
         case MB_CMD_STOP_FW:
-                netif_carrier_off(qdev->ndev);
+                ql_link_off(qdev);
                 /* Signal the resulting link up AEN
                  * that the frame routing and mac addr
                  * needs to be set.
diff --git a/drivers/net/r6040.c b/drivers/net/r6040.c
index ed63d23a6452..961b5397a531 100644
--- a/drivers/net/r6040.c
+++ b/drivers/net/r6040.c
@@ -49,8 +49,8 @@
 #include <asm/processor.h>
 
 #define DRV_NAME        "r6040"
-#define DRV_VERSION     "0.23"
-#define DRV_RELDATE     "05May2009"
+#define DRV_VERSION     "0.24"
+#define DRV_RELDATE     "08Jul2009"
 
 /* PHY CHIP Address */
 #define PHY1_ADDR       1       /* For MAC1 */
@@ -704,8 +704,11 @@ static irqreturn_t r6040_interrupt(int irq, void *dev_id)
         /* Read MISR status and clear */
         status = ioread16(ioaddr + MISR);
 
-        if (status == 0x0000 || status == 0xffff)
+        if (status == 0x0000 || status == 0xffff) {
+                /* Restore RDC MAC interrupt */
+                iowrite16(misr, ioaddr + MIER);
                 return IRQ_NONE;
+        }
 
         /* RX interrupt request */
         if (status & RX_INTS) {
diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 4b53b58d75fc..b82780d805f5 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -2060,8 +2060,6 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
                 }
         }
 
-        pci_set_master(pdev);
-
         /* ioremap MMIO region */
         ioaddr = ioremap(pci_resource_start(pdev, region), R8169_REGS_SIZE);
         if (!ioaddr) {
@@ -2089,6 +2087,8 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
         RTL_W16(IntrStatus, 0xffff);
 
+        pci_set_master(pdev);
+
         /* Identify chip attached to board */
         rtl8169_get_mac_version(tp, ioaddr);
 
@@ -3874,6 +3874,15 @@ static void rtl_shutdown(struct pci_dev *pdev)
         spin_unlock_irq(&tp->lock);
 
         if (system_state == SYSTEM_POWER_OFF) {
+                /* WoL fails with some 8168 when the receiver is disabled. */
+                if (tp->features & RTL_FEATURE_WOL) {
+                        pci_clear_master(pdev);
+
+                        RTL_W8(ChipCmd, CmdRxEnb);
+                        /* PCI commit */
+                        RTL_R8(ChipCmd);
+                }
+
                 pci_wake_from_d3(pdev, true);
                 pci_set_power_state(pdev, PCI_D3hot);
         }
diff --git a/drivers/net/s6gmac.c b/drivers/net/s6gmac.c
index 5345e47b35ac..4525cbe8dd69 100644
--- a/drivers/net/s6gmac.c
+++ b/drivers/net/s6gmac.c
@@ -793,7 +793,7 @@ static inline int s6gmac_phy_start(struct net_device *dev)
         struct s6gmac *pd = netdev_priv(dev);
         int i = 0;
         struct phy_device *p = NULL;
-        while ((!(p = pd->mii.bus->phy_map[i])) && (i < PHY_MAX_ADDR))
+        while ((i < PHY_MAX_ADDR) && (!(p = pd->mii.bus->phy_map[i])))
                 i++;
         p = phy_connect(dev, dev_name(&p->dev), &s6gmac_adjust_link, 0,
                         PHY_INTERFACE_MODE_RGMII);
diff --git a/drivers/net/sc92031.c b/drivers/net/sc92031.c
index 18821f217e19..e3156c97bb58 100644
--- a/drivers/net/sc92031.c
+++ b/drivers/net/sc92031.c
@@ -1593,6 +1593,7 @@ out:
 static struct pci_device_id sc92031_pci_device_id_table[] __devinitdata = {
         { PCI_DEVICE(PCI_VENDOR_ID_SILAN, 0x2031) },
         { PCI_DEVICE(PCI_VENDOR_ID_SILAN, 0x8139) },
+        { PCI_DEVICE(0x1088, 0x2031) },
         { 0, }
 };
 MODULE_DEVICE_TABLE(pci, sc92031_pci_device_id_table);
diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c
index 341882f959f3..a2d82ddb3b4d 100644
--- a/drivers/net/sh_eth.c
+++ b/drivers/net/sh_eth.c
@@ -865,8 +865,7 @@ static irqreturn_t sh_eth_interrupt(int irq, void *netdev)
         struct sh_eth_private *mdp = netdev_priv(ndev);
         struct sh_eth_cpu_data *cd = mdp->cd;
         irqreturn_t ret = IRQ_NONE;
-        u32 ioaddr, boguscnt = RX_RING_SIZE;
-        u32 intr_status = 0;
+        u32 ioaddr, intr_status = 0;
 
         ioaddr = ndev->base_addr;
         spin_lock(&mdp->lock);
@@ -901,12 +900,6 @@ static irqreturn_t sh_eth_interrupt(int irq, void *netdev)
         if (intr_status & cd->eesr_err_check)
                 sh_eth_error(ndev, intr_status);
 
-        if (--boguscnt < 0) {
-                printk(KERN_WARNING
-                       "%s: Too much work at interrupt, status=0x%4.4x.\n",
-                       ndev->name, intr_status);
-        }
-
 other_irq:
         spin_unlock(&mdp->lock);
 
diff --git a/drivers/net/skge.c b/drivers/net/skge.c
index 60d502eef4fc..543af2044f40 100644
--- a/drivers/net/skge.c
+++ b/drivers/net/skge.c
@@ -3854,8 +3854,10 @@ static struct net_device *skge_devinit(struct skge_hw *hw, int port,
         skge->speed = -1;
         skge->advertising = skge_supported_modes(hw);
 
-        if (device_may_wakeup(&hw->pdev->dev))
+        if (device_can_wakeup(&hw->pdev->dev)) {
                 skge->wol = wol_supported(hw) & WAKE_MAGIC;
+                device_set_wakeup_enable(&hw->pdev->dev, skge->wol);
+        }
 
         hw->dev[port] = dev;
 
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 7681d28c53d7..0a551d8f5d95 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -1151,14 +1151,7 @@ stopped:
 
         /* reset the Rx prefetch unit */
         sky2_write32(hw, Y2_QADDR(rxq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
-
-        /* Reset the RAM Buffer receive queue */
-        sky2_write8(hw, RB_ADDR(rxq, RB_CTRL), RB_RST_SET);
-
-        /* Reset Rx MAC FIFO */
-        sky2_write8(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), GMF_RST_SET);
-
-        sky2_read8(hw, B0_CTST);
+        mmiowb();
 }
 
 /* Clean out receive buffer area, assumes receiver hardware stopped */
@@ -1495,6 +1488,8 @@ static int sky2_up(struct net_device *dev)
         sky2_set_vlan_mode(hw, port, sky2->vlgrp != NULL);
 #endif
 
+        sky2->restarting = 0;
+
         err = sky2_rx_start(sky2);
         if (err)
                 goto err_out;
@@ -1507,6 +1502,9 @@ static int sky2_up(struct net_device *dev)
 
         sky2_set_multicast(dev);
 
+        /* wake queue incase we are restarting */
+        netif_wake_queue(dev);
+
         if (netif_msg_ifup(sky2))
                 printk(KERN_INFO PFX "%s: enabling interface\n", dev->name);
         return 0;
@@ -1540,6 +1538,8 @@ static inline int tx_dist(unsigned tail, unsigned head)
 /* Number of list elements available for next tx */
 static inline int tx_avail(const struct sky2_port *sky2)
 {
+        if (unlikely(sky2->restarting))
+                return 0;
         return sky2->tx_pending - tx_dist(sky2->tx_cons, sky2->tx_prod);
 }
 
@@ -1825,11 +1825,9 @@ static int sky2_down(struct net_device *dev)
         if (netif_msg_ifdown(sky2))
                 printk(KERN_INFO PFX "%s: disabling interface\n", dev->name);
 
-        /* Disable port IRQ */
-        imask = sky2_read32(hw, B0_IMSK);
-        imask &= ~portirq_msk[port];
-        sky2_write32(hw, B0_IMSK, imask);
-        sky2_read32(hw, B0_IMSK);
+        /* explicitly shut off tx incase we're restarting */
+        sky2->restarting = 1;
+        netif_tx_disable(dev);
 
         /* Force flow control off */
         sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
@@ -1870,8 +1868,6 @@ static int sky2_down(struct net_device *dev)
 
         sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET);
 
-        sky2_rx_stop(sky2);
-
         sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
         sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET);
 
@@ -1881,6 +1877,14 @@ static int sky2_down(struct net_device *dev)
         sky2_write32(hw, STAT_ISR_TIMER_CNT, 0);
         sky2_read8(hw, STAT_ISR_TIMER_CTRL);
 
+        sky2_rx_stop(sky2);
+
+        /* Disable port IRQ */
+        imask = sky2_read32(hw, B0_IMSK);
+        imask &= ~portirq_msk[port];
+        sky2_write32(hw, B0_IMSK, imask);
+        sky2_read32(hw, B0_IMSK);
+
         synchronize_irq(hw->pdev->irq);
         napi_synchronize(&hw->napi);
 
@@ -2366,7 +2370,7 @@ static inline void sky2_tx_done(struct net_device *dev, u16 last)
 {
         struct sky2_port *sky2 = netdev_priv(dev);
 
-        if (netif_running(dev)) {
+        if (likely(netif_running(dev) && !sky2->restarting)) {
                 netif_tx_lock(dev);
                 sky2_tx_complete(sky2, last);
                 netif_tx_unlock(dev);
@@ -2495,7 +2499,7 @@ static int sky2_status_intr(struct sky2_hw *hw, int to_do, u16 idx)
                         if (likely(status >> 16 == (status & 0xffff))) {
                                 skb = sky2->rx_ring[sky2->rx_next].skb;
                                 skb->ip_summed = CHECKSUM_COMPLETE;
-                                skb->csum = status & 0xffff;
+                                skb->csum = le16_to_cpu(status);
                         } else {
                                 printk(KERN_NOTICE PFX "%s: hardware receive "
                                        "checksum problem (status = %#x)\n",
@@ -4290,6 +4294,7 @@ static __devinit struct net_device *sky2_init_netdev(struct sky2_hw *hw,
         spin_lock_init(&sky2->phy_lock);
         sky2->tx_pending = TX_DEF_PENDING;
         sky2->rx_pending = RX_DEF_PENDING;
+        sky2->restarting = 0;
 
         hw->dev[port] = dev;
 
diff --git a/drivers/net/sky2.h b/drivers/net/sky2.h
index b5549c9e5107..4486b066b43f 100644
--- a/drivers/net/sky2.h
+++ b/drivers/net/sky2.h
@@ -2051,6 +2051,7 @@ struct sky2_port {
         u8                   duplex;    /* DUPLEX_HALF, DUPLEX_FULL */
         u8                   rx_csum;
         u8                   wol;
+        u8                   restarting;
         enum flow_control    flow_mode;
         enum flow_control    flow_status;
 
diff --git a/drivers/net/smc91x.c b/drivers/net/smc91x.c
index fdcbaf8dfa73..1c70e999cc50 100644
--- a/drivers/net/smc91x.c
+++ b/drivers/net/smc91x.c
@@ -1774,6 +1774,7 @@ static const struct net_device_ops smc_netdev_ops = {
         .ndo_start_xmit         = smc_hard_start_xmit,
         .ndo_tx_timeout         = smc_timeout,
         .ndo_set_multicast_list = smc_set_multicast_list,
+        .ndo_change_mtu         = eth_change_mtu,
         .ndo_validate_addr      = eth_validate_addr,
         .ndo_set_mac_address    = eth_mac_addr,
 #ifdef CONFIG_NET_POLL_CONTROLLER
diff --git a/drivers/net/smc91x.h b/drivers/net/smc91x.h
index f1f773b17fe1..57a159fac99f 100644
--- a/drivers/net/smc91x.h
+++ b/drivers/net/smc91x.h
@@ -186,7 +186,8 @@ static inline void SMC_outw(u16 val, void __iomem *ioaddr, int reg)
 #define SMC_outsb(a, r, p, l)   writesb((a) + (r), p, (l))
 #define SMC_IRQ_FLAGS           (-1)    /* from resource */
 
-#elif   defined(CONFIG_MACH_LOGICPD_PXA270)
+#elif   defined(CONFIG_MACH_LOGICPD_PXA270) \
+        || defined(CONFIG_MACH_NOMADIK_8815NHK)
 
 #define SMC_CAN_USE_8BIT        0
 #define SMC_CAN_USE_16BIT       1
diff --git a/drivers/net/smsc911x.c b/drivers/net/smsc911x.c
index b60639bd181b..94b6d2658ddc 100644
--- a/drivers/net/smsc911x.c
+++ b/drivers/net/smsc911x.c
@@ -1779,6 +1779,7 @@ static const struct net_device_ops smsc911x_netdev_ops = {
         .ndo_get_stats          = smsc911x_get_stats,
         .ndo_set_multicast_list = smsc911x_set_multicast_list,
         .ndo_do_ioctl           = smsc911x_do_ioctl,
+        .ndo_change_mtu         = eth_change_mtu,
         .ndo_validate_addr      = eth_validate_addr,
         .ndo_set_mac_address    = smsc911x_set_mac_address,
 #ifdef CONFIG_NET_POLL_CONTROLLER
@@ -1938,7 +1939,7 @@ static int __devexit smsc911x_drv_remove(struct platform_device *pdev)
         if (!res)
                 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-        release_mem_region(res->start, res->end - res->start);
+        release_mem_region(res->start, resource_size(res));
 
         iounmap(pdata->ioaddr);
 
@@ -1976,7 +1977,7 @@ static int __devinit smsc911x_drv_probe(struct platform_device *pdev)
                 retval = -ENODEV;
                 goto out_0;
         }
-        res_size = res->end - res->start + 1;
+        res_size = resource_size(res);
 
         irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
         if (!irq_res) {
@@ -2104,7 +2105,7 @@ out_unmap_io_3:
 out_free_netdev_2:
         free_netdev(dev);
 out_release_io_1:
-        release_mem_region(res->start, res->end - res->start);
+        release_mem_region(res->start, resource_size(res));
 out_0:
         return retval;
 }
diff --git a/drivers/net/starfire.c b/drivers/net/starfire.c
index 838cce8b8fff..669253c7bd41 100644
--- a/drivers/net/starfire.c
+++ b/drivers/net/starfire.c
@@ -180,7 +180,7 @@ static int full_duplex[MAX_UNITS] = {0, };
 /* These identify the driver base version and may not be removed. */
 static const char version[] __devinitconst =
 KERN_INFO "starfire.c:v1.03 7/26/2000  Written by Donald Becker <becker@scyld.com>\n"
-KERN_INFO " (unofficial 2.2/2.4 kernel port, version " DRV_VERSION ", " DRV_RELDATE ")\n";
+" (unofficial 2.2/2.4 kernel port, version " DRV_VERSION ", " DRV_RELDATE ")\n";
 
 MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
 MODULE_DESCRIPTION("Adaptec Starfire Ethernet driver");
diff --git a/drivers/net/sundance.c b/drivers/net/sundance.c
index 545f81b34ad7..d1521c3875b2 100644
--- a/drivers/net/sundance.c
+++ b/drivers/net/sundance.c
@@ -1698,13 +1698,13 @@ static int netdev_close(struct net_device *dev)
 
 #ifdef __i386__
         if (netif_msg_hw(np)) {
-                printk("\n"KERN_DEBUG"  Tx ring at %8.8x:\n",
+                printk(KERN_DEBUG "  Tx ring at %8.8x:\n",
                            (int)(np->tx_ring_dma));
                 for (i = 0; i < TX_RING_SIZE; i++)
-                        printk(" #%d desc. %4.4x %8.8x %8.8x.\n",
+                        printk(KERN_DEBUG " #%d desc. %4.4x %8.8x %8.8x.\n",
                                    i, np->tx_ring[i].status, np->tx_ring[i].frag[0].addr,
                                    np->tx_ring[i].frag[0].length);
-                printk("\n"KERN_DEBUG "  Rx ring %8.8x:\n",
+                printk(KERN_DEBUG "  Rx ring %8.8x:\n",
                            (int)(np->rx_ring_dma));
                 for (i = 0; i < /*RX_RING_SIZE*/4 ; i++) {
                         printk(KERN_DEBUG " #%d desc. %4.4x %4.4x %8.8x\n",
diff --git a/drivers/net/sunvnet.c b/drivers/net/sunvnet.c
index a82fb2aca4cb..f1e5e4542c2a 100644
--- a/drivers/net/sunvnet.c
+++ b/drivers/net/sunvnet.c
@@ -1016,7 +1016,9 @@ static const struct net_device_ops vnet_ops = {
         .ndo_open               = vnet_open,
         .ndo_stop               = vnet_close,
         .ndo_set_multicast_list = vnet_set_rx_mode,
+        .ndo_change_mtu         = eth_change_mtu,
         .ndo_set_mac_address    = vnet_set_mac_addr,
+        .ndo_validate_addr      = eth_validate_addr,
         .ndo_tx_timeout         = vnet_tx_timeout,
         .ndo_change_mtu         = vnet_change_mtu,
         .ndo_start_xmit         = vnet_start_xmit,
diff --git a/drivers/net/tokenring/ibmtr.c b/drivers/net/tokenring/ibmtr.c
index 9d896116cf76..08a6c41c1599 100644
--- a/drivers/net/tokenring/ibmtr.c
+++ b/drivers/net/tokenring/ibmtr.c
@@ -1912,7 +1912,7 @@ static int __init ibmtr_init(void)
 
         find_turbo_adapters(io);
 
-        for (i = 0; io[i] && (i < IBMTR_MAX_ADAPTERS); i++) {
+        for (i = 0; i < IBMTR_MAX_ADAPTERS && io[i]; i++) {
                 struct net_device *dev;
                 irq[i] = 0;
                 mem[i] = 0;
diff --git a/drivers/net/tsi108_eth.c b/drivers/net/tsi108_eth.c
index 0f78f99f9b20..7030bd5e9848 100644
--- a/drivers/net/tsi108_eth.c
+++ b/drivers/net/tsi108_eth.c
@@ -1132,7 +1132,9 @@ static int tsi108_get_mac(struct net_device *dev)
         }
 
         if (!is_valid_ether_addr(dev->dev_addr)) {
-                printk("KERN_ERR: word1: %08x, word2: %08x\n", word1, word2);
+                printk(KERN_ERR
+                       "%s: Invalid MAC address. word1: %08x, word2: %08x\n",
+                       dev->name, word1, word2);
                 return -EINVAL;
         }
 
@@ -1201,8 +1203,8 @@ static void tsi108_set_rx_mode(struct net_device *dev)
                                 __set_bit(hash, &data->mc_hash[0]);
                         } else {
                                 printk(KERN_ERR
-                                       "%s: got multicast address of length %d "
-                                       "instead of 6.\n", dev->name,
+                "%s: got multicast address of length %d instead of 6.\n",
+                                       dev->name,
                                        mc->dmi_addrlen);
                         }
 
diff --git a/drivers/net/tulip/de2104x.c b/drivers/net/tulip/de2104x.c
index 81f054dbb88d..ef49744a5085 100644
--- a/drivers/net/tulip/de2104x.c
+++ b/drivers/net/tulip/de2104x.c
@@ -944,9 +944,10 @@ static void de_set_media (struct de_private *de)
                 macmode &= ~FullDuplex;
 
         if (netif_msg_link(de)) {
-                printk(KERN_INFO "%s: set link %s\n"
-                       KERN_INFO "%s:    mode 0x%x, sia 0x%x,0x%x,0x%x,0x%x\n"
-                       KERN_INFO "%s:    set mode 0x%x, set sia 0x%x,0x%x,0x%x\n",
+                printk(KERN_INFO
+                       "%s: set link %s\n"
+                       "%s:    mode 0x%x, sia 0x%x,0x%x,0x%x,0x%x\n"
+                       "%s:    set mode 0x%x, set sia 0x%x,0x%x,0x%x\n",
                        de->dev->name, media_name[media],
                        de->dev->name, dr32(MacMode), dr32(SIAStatus),
                        dr32(CSR13), dr32(CSR14), dr32(CSR15),
diff --git a/drivers/net/tulip/de4x5.c b/drivers/net/tulip/de4x5.c
index eb72d2e9ab3d..acfdccd44567 100644
--- a/drivers/net/tulip/de4x5.c
+++ b/drivers/net/tulip/de4x5.c
@@ -5059,7 +5059,7 @@ mii_get_phy(struct net_device *dev)
         if ((id == 0) || (id == 65535)) continue;  /* Valid ID? */
         for (j=0; j<limit; j++) {                  /* Search PHY table */
             if (id != phy_info[j].id) continue;    /* ID match? */
-            for (k=0; lp->phy[k].id && (k < DE4X5_MAX_PHY); k++);
+            for (k=0; k < DE4X5_MAX_PHY && lp->phy[k].id; k++);
             if (k < DE4X5_MAX_PHY) {
                 memcpy((char *)&lp->phy[k],
                        (char *)&phy_info[j], sizeof(struct phy_table));
@@ -5072,7 +5072,7 @@ mii_get_phy(struct net_device *dev)
             break;
         }
         if ((j == limit) && (i < DE4X5_MAX_MII)) {
-            for (k=0; lp->phy[k].id && (k < DE4X5_MAX_PHY); k++);
+            for (k=0; k < DE4X5_MAX_PHY && lp->phy[k].id; k++);
             lp->phy[k].addr = i;
             lp->phy[k].id = id;
             lp->phy[k].spd.reg = GENERIC_REG;      /* ANLPA register         */
@@ -5091,7 +5091,7 @@ mii_get_phy(struct net_device *dev)
   purgatory:
     lp->active = 0;
     if (lp->phy[0].id) {                           /* Reset the PHY devices */
-        for (k=0; lp->phy[k].id && (k < DE4X5_MAX_PHY); k++) { /*For each PHY*/
+        for (k=0; k < DE4X5_MAX_PHY && lp->phy[k].id; k++) { /*For each PHY*/
             mii_wr(MII_CR_RST, MII_CR, lp->phy[k].addr, DE4X5_MII);
             while (mii_rd(MII_CR, lp->phy[k].addr, DE4X5_MII) & MII_CR_RST);
 
diff --git a/drivers/net/tulip/tulip_core.c b/drivers/net/tulip/tulip_core.c
index 2abb5d3becc6..99a63649f4fc 100644
--- a/drivers/net/tulip/tulip_core.c
+++ b/drivers/net/tulip/tulip_core.c
@@ -570,16 +570,18 @@ static void tulip_tx_timeout(struct net_device *dev)
                                    (unsigned int)tp->rx_ring[i].buffer2,
                                    buf[0], buf[1], buf[2]);
                         for (j = 0; buf[j] != 0xee && j < 1600; j++)
-                                if (j < 100) printk(" %2.2x", buf[j]);
-                        printk(" j=%d.\n", j);
+                                if (j < 100)
+                                        printk(KERN_CONT " %2.2x", buf[j]);
+                        printk(KERN_CONT " j=%d.\n", j);
                 }
                 printk(KERN_DEBUG "  Rx ring %8.8x: ", (int)tp->rx_ring);
                 for (i = 0; i < RX_RING_SIZE; i++)
-                        printk(" %8.8x", (unsigned int)tp->rx_ring[i].status);
-                printk("\n" KERN_DEBUG "  Tx ring %8.8x: ", (int)tp->tx_ring);
+                        printk(KERN_CONT " %8.8x",
+                               (unsigned int)tp->rx_ring[i].status);
+                printk(KERN_DEBUG "  Tx ring %8.8x: ", (int)tp->tx_ring);
                 for (i = 0; i < TX_RING_SIZE; i++)
-                        printk(" %8.8x", (unsigned int)tp->tx_ring[i].status);
-                printk("\n");
+                        printk(KERN_CONT " %8.8x", (unsigned int)tp->tx_ring[i].status);
+                printk(KERN_CONT "\n");
         }
 #endif
 
diff --git a/drivers/net/tulip/winbond-840.c b/drivers/net/tulip/winbond-840.c
index 842b1a2c40d4..0f15773dae52 100644
--- a/drivers/net/tulip/winbond-840.c
+++ b/drivers/net/tulip/winbond-840.c
@@ -142,7 +142,7 @@ static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
 static const char version[] __initconst =
         KERN_INFO DRV_NAME ".c:v" DRV_VERSION " (2.4 port) "
         DRV_RELDATE "  Donald Becker <becker@scyld.com>\n"
-        KERN_INFO "  http://www.scyld.com/network/drivers.html\n";
+        "  http://www.scyld.com/network/drivers.html\n";
 
 MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
 MODULE_DESCRIPTION("Winbond W89c840 Ethernet driver");
@@ -939,7 +939,7 @@ static void tx_timeout(struct net_device *dev)
                 printk(KERN_DEBUG "  Rx ring %p: ", np->rx_ring);
                 for (i = 0; i < RX_RING_SIZE; i++)
                         printk(" %8.8x", (unsigned int)np->rx_ring[i].status);
-                printk("\n"KERN_DEBUG"  Tx ring %p: ", np->tx_ring);
+                printk(KERN_DEBUG"  Tx ring %p: ", np->tx_ring);
                 for (i = 0; i < TX_RING_SIZE; i++)
                         printk(" %8.8x", np->tx_ring[i].status);
                 printk("\n");
@@ -1520,7 +1520,7 @@ static int netdev_close(struct net_device *dev)
                         printk(KERN_DEBUG " #%d desc. %4.4x %4.4x %8.8x.\n",
                                    i, np->tx_ring[i].length,
                                    np->tx_ring[i].status, np->tx_ring[i].buffer1);
-                printk("\n"KERN_DEBUG "  Rx ring %8.8x:\n",
+                printk(KERN_DEBUG "  Rx ring %8.8x:\n",
                            (int)np->rx_ring);
                 for (i = 0; i < RX_RING_SIZE; i++) {
                         printk(KERN_DEBUG " #%d desc. %4.4x %4.4x %8.8x\n",
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 11a0ba47b677..027f7aba26af 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -486,12 +486,14 @@ static unsigned int tun_chr_poll(struct file *file, poll_table * wait)
 {
         struct tun_file *tfile = file->private_data;
         struct tun_struct *tun = __tun_get(tfile);
-        struct sock *sk = tun->sk;
+        struct sock *sk;
         unsigned int mask = 0;
 
         if (!tun)
                 return POLLERR;
 
+        sk = tun->sk;
+
         DBG(KERN_INFO "%s: tun_chr_poll\n", tun->dev->name);
 
         poll_wait(file, &tun->socket.wait, wait);
@@ -1324,20 +1326,22 @@ static int tun_chr_close(struct inode *inode, struct file *file)
         struct tun_file *tfile = file->private_data;
         struct tun_struct *tun;
 
-
-        rtnl_lock();
         tun = __tun_get(tfile);
         if (tun) {
-                DBG(KERN_INFO "%s: tun_chr_close\n", tun->dev->name);
+                struct net_device *dev = tun->dev;
+
+                DBG(KERN_INFO "%s: tun_chr_close\n", dev->name);
 
                 __tun_detach(tun);
 
                 /* If desireable, unregister the netdevice. */
-                if (!(tun->flags & TUN_PERSIST))
-                        unregister_netdevice(tun->dev);
-
+                if (!(tun->flags & TUN_PERSIST)) {
+                        rtnl_lock();
+                        if (dev->reg_state == NETREG_REGISTERED)
+                                unregister_netdevice(dev);
+                        rtnl_unlock();
+                }
         }
-        rtnl_unlock();
 
         tun = tfile->tun;
         if (tun)
diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c
index 40c6eba775ce..3b957e6412ee 100644
--- a/drivers/net/ucc_geth.c
+++ b/drivers/net/ucc_geth.c
@@ -1590,13 +1590,13 @@ static int init_phy(struct net_device *dev)
         priv->oldspeed = 0;
         priv->oldduplex = -1;
 
-        if (!ug_info->phy_node)
-                return 0;
-
         phydev = of_phy_connect(dev, ug_info->phy_node, &adjust_link, 0,
                                 priv->phy_interface);
+        if (!phydev)
+                phydev = of_phy_connect_fixed_link(dev, &adjust_link,
+                                                   priv->phy_interface);
         if (!phydev) {
-                printk("%s: Could not attach to PHY\n", dev->name);
+                dev_err(&dev->dev, "Could not attach to PHY\n");
                 return -ENODEV;
         }
 
@@ -3608,9 +3608,7 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
         struct ucc_geth_private *ugeth = NULL;
         struct ucc_geth_info *ug_info;
         struct resource res;
-        struct device_node *phy;
         int err, ucc_num, max_speed = 0;
-        const u32 *fixed_link;
         const unsigned int *prop;
         const char *sprop;
         const void *mac_addr;
@@ -3708,15 +3706,8 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
 
         ug_info->uf_info.regs = res.start;
         ug_info->uf_info.irq = irq_of_parse_and_map(np, 0);
-        fixed_link = of_get_property(np, "fixed-link", NULL);
-        if (fixed_link) {
-                phy = NULL;
-        } else {
-                phy = of_parse_phandle(np, "phy-handle", 0);
-                if (phy == NULL)
-                        return -ENODEV;
-        }
-        ug_info->phy_node = phy;
+
+        ug_info->phy_node = of_parse_phandle(np, "phy-handle", 0);
 
         /* Find the TBI PHY node.  If it's not there, we don't support SGMII */
         ug_info->tbi_node = of_parse_phandle(np, "tbi-handle", 0);
@@ -3725,7 +3716,7 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
         prop = of_get_property(np, "phy-connection-type", NULL);
         if (!prop) {
                 /* handle interface property present in old trees */
-                prop = of_get_property(phy, "interface", NULL);
+                prop = of_get_property(ug_info->phy_node, "interface", NULL);
                 if (prop != NULL) {
                         phy_interface = enet_to_phy_interface[*prop];
                         max_speed = enet_to_speed[*prop];
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index a906d3998131..c47237c2d638 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -369,4 +369,12 @@ config USB_NET_INT51X1
           (Powerline Communications) solution with an Intellon
           INT51x1/INT5200 chip, like the "devolo dLan duo".
 
+config USB_CDC_PHONET
+        tristate "CDC Phonet support"
+        depends on PHONET
+        help
+          Choose this option to support the Phonet interface to a Nokia
+          cellular modem, as found on most Nokia handsets with the
+          "PC suite" USB profile.
+
 endmenu
diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile
index b870b0b1cbe0..e17afb78f372 100644
--- a/drivers/net/usb/Makefile
+++ b/drivers/net/usb/Makefile
@@ -21,4 +21,5 @@ obj-$(CONFIG_USB_NET_ZAURUS)	+= zaurus.o
 obj-$(CONFIG_USB_NET_MCS7830)   += mcs7830.o
 obj-$(CONFIG_USB_USBNET)        += usbnet.o
 obj-$(CONFIG_USB_NET_INT51X1)   += int51x1.o
+obj-$(CONFIG_USB_CDC_PHONET)    += cdc-phonet.o
 
diff --git a/drivers/net/usb/cdc-phonet.c b/drivers/net/usb/cdc-phonet.c
new file mode 100644
index 000000000000..792af72da8ac
--- /dev/null
+++ b/drivers/net/usb/cdc-phonet.c
@@ -0,0 +1,461 @@
+/*
+ * phonet.c -- USB CDC Phonet host driver
+ *
+ * Copyright (C) 2008-2009 Nokia Corporation. All rights reserved.
+ *
+ * Author: Rémi Denis-Courmont
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/cdc.h>
+#include <linux/netdevice.h>
+#include <linux/if_arp.h>
+#include <linux/if_phonet.h>
+
+#define PN_MEDIA_USB    0x1B
+
+static const unsigned rxq_size = 17;
+
+struct usbpn_dev {
+        struct net_device       *dev;
+
+        struct usb_interface    *intf, *data_intf;
+        struct usb_device       *usb;
+        unsigned int            tx_pipe, rx_pipe;
+        u8 active_setting;
+        u8 disconnected;
+
+        unsigned                tx_queue;
+        spinlock_t              tx_lock;
+
+        spinlock_t              rx_lock;
+        struct sk_buff          *rx_skb;
+        struct urb              *urbs[0];
+};
+
+static void tx_complete(struct urb *req);
+static void rx_complete(struct urb *req);
+
+/*
+ * Network device callbacks
+ */
+static int usbpn_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+        struct usbpn_dev *pnd = netdev_priv(dev);
+        struct urb *req = NULL;
+        unsigned long flags;
+        int err;
+
+        if (skb->protocol != htons(ETH_P_PHONET))
+                goto drop;
+
+        req = usb_alloc_urb(0, GFP_ATOMIC);
+        if (!req)
+                goto drop;
+        usb_fill_bulk_urb(req, pnd->usb, pnd->tx_pipe, skb->data, skb->len,
+                                tx_complete, skb);
+        req->transfer_flags = URB_ZERO_PACKET;
+        err = usb_submit_urb(req, GFP_ATOMIC);
+        if (err) {
+                usb_free_urb(req);
+                goto drop;
+        }
+
+        spin_lock_irqsave(&pnd->tx_lock, flags);
+        pnd->tx_queue++;
+        if (pnd->tx_queue >= dev->tx_queue_len)
+                netif_stop_queue(dev);
+        spin_unlock_irqrestore(&pnd->tx_lock, flags);
+        return 0;
+
+drop:
+        dev_kfree_skb(skb);
+        dev->stats.tx_dropped++;
+        return 0;
+}
+
+static void tx_complete(struct urb *req)
+{
+        struct sk_buff *skb = req->context;
+        struct net_device *dev = skb->dev;
+        struct usbpn_dev *pnd = netdev_priv(dev);
+
+        switch (req->status) {
+        case 0:
+                dev->stats.tx_bytes += skb->len;
+                break;
+
+        case -ENOENT:
+        case -ECONNRESET:
+        case -ESHUTDOWN:
+                dev->stats.tx_aborted_errors++;
+        default:
+                dev->stats.tx_errors++;
+                dev_dbg(&dev->dev, "TX error (%d)\n", req->status);
+        }
+        dev->stats.tx_packets++;
+
+        spin_lock(&pnd->tx_lock);
+        pnd->tx_queue--;
+        netif_wake_queue(dev);
+        spin_unlock(&pnd->tx_lock);
+
+        dev_kfree_skb_any(skb);
+        usb_free_urb(req);
+}
+
+static int rx_submit(struct usbpn_dev *pnd, struct urb *req, gfp_t gfp_flags)
+{
+        struct net_device *dev = pnd->dev;
+        struct page *page;
+        int err;
+
+        page = __netdev_alloc_page(dev, gfp_flags);
+        if (!page)
+                return -ENOMEM;
+
+        usb_fill_bulk_urb(req, pnd->usb, pnd->rx_pipe, page_address(page),
+                                PAGE_SIZE, rx_complete, dev);
+        req->transfer_flags = 0;
+        err = usb_submit_urb(req, gfp_flags);
+        if (unlikely(err)) {
+                dev_dbg(&dev->dev, "RX submit error (%d)\n", err);
+                netdev_free_page(dev, page);
+        }
+        return err;
+}
+
+static void rx_complete(struct urb *req)
+{
+        struct net_device *dev = req->context;
+        struct usbpn_dev *pnd = netdev_priv(dev);
+        struct page *page = virt_to_page(req->transfer_buffer);
+        struct sk_buff *skb;
+        unsigned long flags;
+
+        switch (req->status) {
+        case 0:
+                spin_lock_irqsave(&pnd->rx_lock, flags);
+                skb = pnd->rx_skb;
+                if (!skb) {
+                        skb = pnd->rx_skb = netdev_alloc_skb(dev, 12);
+                        if (likely(skb)) {
+                                /* Can't use pskb_pull() on page in IRQ */
+                                memcpy(skb_put(skb, 1), page_address(page), 1);
+                                skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags,
+                                                page, 1, req->actual_length);
+                                page = NULL;
+                        }
+                } else {
+                        skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags,
+                                        page, 0, req->actual_length);
+                        page = NULL;
+                }
+                if (req->actual_length < PAGE_SIZE)
+                        pnd->rx_skb = NULL; /* Last fragment */
+                else
+                        skb = NULL;
+                spin_unlock_irqrestore(&pnd->rx_lock, flags);
+                if (skb) {
+                        skb->protocol = htons(ETH_P_PHONET);
+                        skb_reset_mac_header(skb);
+                        __skb_pull(skb, 1);
+                        skb->dev = dev;
+                        dev->stats.rx_packets++;
+                        dev->stats.rx_bytes += skb->len;
+
+                        netif_rx(skb);
+                }
+                goto resubmit;
+
+        case -ENOENT:
+        case -ECONNRESET:
+        case -ESHUTDOWN:
+                req = NULL;
+                break;
+
+        case -EOVERFLOW:
+                dev->stats.rx_over_errors++;
+                dev_dbg(&dev->dev, "RX overflow\n");
+                break;
+
+        case -EILSEQ:
+                dev->stats.rx_crc_errors++;
+                break;
+        }
+
+        dev->stats.rx_errors++;
+resubmit:
+        if (page)
+                netdev_free_page(dev, page);
+        if (req)
+                rx_submit(pnd, req, GFP_ATOMIC);
+}
+
+static int usbpn_close(struct net_device *dev);
+
+static int usbpn_open(struct net_device *dev)
+{
+        struct usbpn_dev *pnd = netdev_priv(dev);
+        int err;
+        unsigned i;
+        unsigned num = pnd->data_intf->cur_altsetting->desc.bInterfaceNumber;
+
+        err = usb_set_interface(pnd->usb, num, pnd->active_setting);
+        if (err)
+                return err;
+
+        for (i = 0; i < rxq_size; i++) {
+                struct urb *req = usb_alloc_urb(0, GFP_KERNEL);
+
+                if (!req || rx_submit(pnd, req, GFP_KERNEL)) {
+                        usbpn_close(dev);
+                        return -ENOMEM;
+                }
+                pnd->urbs[i] = req;
+        }
+
+        netif_wake_queue(dev);
+        return 0;
+}
+
+static int usbpn_close(struct net_device *dev)
+{
+        struct usbpn_dev *pnd = netdev_priv(dev);
+        unsigned i;
+        unsigned num = pnd->data_intf->cur_altsetting->desc.bInterfaceNumber;
+
+        netif_stop_queue(dev);
+
+        for (i = 0; i < rxq_size; i++) {
+                struct urb *req = pnd->urbs[i];
+
+                if (!req)
+                        continue;
+                usb_kill_urb(req);
+                usb_free_urb(req);
+                pnd->urbs[i] = NULL;
+        }
+
+        return usb_set_interface(pnd->usb, num, !pnd->active_setting);
+}
+
+static int usbpn_set_mtu(struct net_device *dev, int new_mtu)
+{
+        if ((new_mtu < PHONET_MIN_MTU) || (new_mtu > PHONET_MAX_MTU))
+                return -EINVAL;
+
+        dev->mtu = new_mtu;
+        return 0;
+}
+
+static const struct net_device_ops usbpn_ops = {
+        .ndo_open       = usbpn_open,
+        .ndo_stop       = usbpn_close,
+        .ndo_start_xmit = usbpn_xmit,
+        .ndo_change_mtu = usbpn_set_mtu,
+};
+
+static void usbpn_setup(struct net_device *dev)
+{
+        dev->features           = 0;
+        dev->netdev_ops         = &usbpn_ops,
+        dev->header_ops         = &phonet_header_ops;
+        dev->type               = ARPHRD_PHONET;
+        dev->flags              = IFF_POINTOPOINT | IFF_NOARP;
+        dev->mtu                = PHONET_MAX_MTU;
+        dev->hard_header_len    = 1;
+        dev->dev_addr[0]        = PN_MEDIA_USB;
+        dev->addr_len           = 1;
+        dev->tx_queue_len       = 3;
+
+        dev->destructor         = free_netdev;
+}
+
+/*
+ * USB driver callbacks
+ */
+static struct usb_device_id usbpn_ids[] = {
+        {
+                .match_flags = USB_DEVICE_ID_MATCH_VENDOR
+                        | USB_DEVICE_ID_MATCH_INT_CLASS
+                        | USB_DEVICE_ID_MATCH_INT_SUBCLASS,
+                .idVendor = 0x0421, /* Nokia */
+                .bInterfaceClass = USB_CLASS_COMM,
+                .bInterfaceSubClass = 0xFE,
+        },
+        { },
+};
+
+MODULE_DEVICE_TABLE(usb, usbpn_ids);
+
+static struct usb_driver usbpn_driver;
+
+int usbpn_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+        static const char ifname[] = "usbpn%d";
+        const struct usb_cdc_union_desc *union_header = NULL;
+        const struct usb_cdc_header_desc *phonet_header = NULL;
+        const struct usb_host_interface *data_desc;
+        struct usb_interface *data_intf;
+        struct usb_device *usbdev = interface_to_usbdev(intf);
+        struct net_device *dev;
+        struct usbpn_dev *pnd;
+        u8 *data;
+        int len, err;
+
+        data = intf->altsetting->extra;
+        len = intf->altsetting->extralen;
+        while (len >= 3) {
+                u8 dlen = data[0];
+                if (dlen < 3)
+                        return -EINVAL;
+
+                /* bDescriptorType */
+                if (data[1] == USB_DT_CS_INTERFACE) {
+                        /* bDescriptorSubType */
+                        switch (data[2]) {
+                        case USB_CDC_UNION_TYPE:
+                                if (union_header || dlen < 5)
+                                        break;
+                                union_header =
+                                        (struct usb_cdc_union_desc *)data;
+                                break;
+                        case 0xAB:
+                                if (phonet_header || dlen < 5)
+                                        break;
+                                phonet_header =
+                                        (struct usb_cdc_header_desc *)data;
+                                break;
+                        }
+                }
+                data += dlen;
+                len -= dlen;
+        }
+
+        if (!union_header || !phonet_header)
+                return -EINVAL;
+
+        data_intf = usb_ifnum_to_if(usbdev, union_header->bSlaveInterface0);
+        if (data_intf == NULL)
+                return -ENODEV;
+        /* Data interface has one inactive and one active setting */
+        if (data_intf->num_altsetting != 2)
+                return -EINVAL;
+        if (data_intf->altsetting[0].desc.bNumEndpoints == 0
+         && data_intf->altsetting[1].desc.bNumEndpoints == 2)
+                data_desc = data_intf->altsetting + 1;
+        else
+        if (data_intf->altsetting[0].desc.bNumEndpoints == 2
+         && data_intf->altsetting[1].desc.bNumEndpoints == 0)
+                data_desc = data_intf->altsetting;
+        else
+                return -EINVAL;
+
+        dev = alloc_netdev(sizeof(*pnd) + sizeof(pnd->urbs[0]) * rxq_size,
+                                ifname, usbpn_setup);
+        if (!dev)
+                return -ENOMEM;
+
+        pnd = netdev_priv(dev);
+        SET_NETDEV_DEV(dev, &intf->dev);
+        netif_stop_queue(dev);
+
+        pnd->dev = dev;
+        pnd->usb = usb_get_dev(usbdev);
+        pnd->intf = intf;
+        pnd->data_intf = data_intf;
+        spin_lock_init(&pnd->tx_lock);
+        spin_lock_init(&pnd->rx_lock);
+        /* Endpoints */
+        if (usb_pipein(data_desc->endpoint[0].desc.bEndpointAddress)) {
+                pnd->rx_pipe = usb_rcvbulkpipe(usbdev,
+                        data_desc->endpoint[0].desc.bEndpointAddress);
+                pnd->tx_pipe = usb_sndbulkpipe(usbdev,
+                        data_desc->endpoint[1].desc.bEndpointAddress);
+        } else {
+                pnd->rx_pipe = usb_rcvbulkpipe(usbdev,
+                        data_desc->endpoint[1].desc.bEndpointAddress);
+                pnd->tx_pipe = usb_sndbulkpipe(usbdev,
+                        data_desc->endpoint[0].desc.bEndpointAddress);
+        }
+        pnd->active_setting = data_desc - data_intf->altsetting;
+
+        err = usb_driver_claim_interface(&usbpn_driver, data_intf, pnd);
+        if (err)
+                goto out;
+
+        /* Force inactive mode until the network device is brought UP */
+        usb_set_interface(usbdev, union_header->bSlaveInterface0,
+                                !pnd->active_setting);
+        usb_set_intfdata(intf, pnd);
+
+        err = register_netdev(dev);
+        if (err) {
+                usb_driver_release_interface(&usbpn_driver, data_intf);
+                goto out;
+        }
+
+        dev_dbg(&dev->dev, "USB CDC Phonet device found\n");
+        return 0;
+
+out:
+        usb_set_intfdata(intf, NULL);
+        free_netdev(dev);
+        return err;
+}
+
+static void usbpn_disconnect(struct usb_interface *intf)
+{
+        struct usbpn_dev *pnd = usb_get_intfdata(intf);
+        struct usb_device *usb = pnd->usb;
+
+        if (pnd->disconnected)
+                return;
+
+        pnd->disconnected = 1;
+        usb_driver_release_interface(&usbpn_driver,
+                        (pnd->intf == intf) ? pnd->data_intf : pnd->intf);
+        unregister_netdev(pnd->dev);
+        usb_put_dev(usb);
+}
+
+static struct usb_driver usbpn_driver = {
+        .name =         "cdc_phonet",
+        .probe =        usbpn_probe,
+        .disconnect =   usbpn_disconnect,
+        .id_table =     usbpn_ids,
+};
+
+static int __init usbpn_init(void)
+{
+        return usb_register(&usbpn_driver);
+}
+
+static void __exit usbpn_exit(void)
+{
+        usb_deregister(&usbpn_driver);
+}
+
+module_init(usbpn_init);
+module_exit(usbpn_exit);
+
+MODULE_AUTHOR("Remi Denis-Courmont");
+MODULE_DESCRIPTION("USB CDC Phonet host interface");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/cdc_eem.c b/drivers/net/usb/cdc_eem.c
index 80e01778dd3b..45cebfb302cf 100644
--- a/drivers/net/usb/cdc_eem.c
+++ b/drivers/net/usb/cdc_eem.c
@@ -311,7 +311,7 @@ static int eem_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
                          *      bmCRC = 0       : CRC = 0xDEADBEEF
                          */
                         if (header & BIT(14))
-                                crc2 = ~crc32_le(~0, skb2->data, len);
+                                crc2 = ~crc32_le(~0, skb2->data, skb2->len);
                         else
                                 crc2 = 0xdeadbeef;
 
@@ -319,7 +319,7 @@ static int eem_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
                                 return crc == crc2;
 
                         if (unlikely(crc != crc2)) {
-                                dev->stats.rx_errors++;
+                                dev->net->stats.rx_errors++;
                                 dev_kfree_skb_any(skb2);
                         } else
                                 usbnet_skb_return(dev, skb2);
diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c
index 7ae82446b93a..1d3730d6690f 100644
--- a/drivers/net/usb/dm9601.c
+++ b/drivers/net/usb/dm9601.c
@@ -513,11 +513,11 @@ static int dm9601_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
         len = (skb->data[1] | (skb->data[2] << 8)) - 4;
 
         if (unlikely(status & 0xbf)) {
-                if (status & 0x01) dev->stats.rx_fifo_errors++;
-                if (status & 0x02) dev->stats.rx_crc_errors++;
-                if (status & 0x04) dev->stats.rx_frame_errors++;
-                if (status & 0x20) dev->stats.rx_missed_errors++;
-                if (status & 0x90) dev->stats.rx_length_errors++;
+                if (status & 0x01) dev->net->stats.rx_fifo_errors++;
+                if (status & 0x02) dev->net->stats.rx_crc_errors++;
+                if (status & 0x04) dev->net->stats.rx_frame_errors++;
+                if (status & 0x20) dev->net->stats.rx_missed_errors++;
+                if (status & 0x90) dev->net->stats.rx_length_errors++;
                 return 0;
         }
 
diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
index e01314789718..1f9ec29fce50 100644
--- a/drivers/net/usb/kaweth.c
+++ b/drivers/net/usb/kaweth.c
@@ -999,6 +999,9 @@ static const struct net_device_ops kaweth_netdev_ops = {
         .ndo_tx_timeout =               kaweth_tx_timeout,
         .ndo_set_multicast_list =       kaweth_set_rx_mode,
         .ndo_get_stats =                kaweth_netdev_stats,
+        .ndo_change_mtu =               eth_change_mtu,
+        .ndo_set_mac_address =          eth_mac_addr,
+        .ndo_validate_addr =            eth_validate_addr,
 };
 
 static int kaweth_probe(
diff --git a/drivers/net/usb/net1080.c b/drivers/net/usb/net1080.c
index 034e8a73ca6b..aeb1ab03a9ee 100644
--- a/drivers/net/usb/net1080.c
+++ b/drivers/net/usb/net1080.c
@@ -433,7 +433,7 @@ static int net1080_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
                 dbg("rx framesize %d range %d..%d mtu %d", skb->len,
                         net->hard_header_len, dev->hard_mtu, net->mtu);
 #endif
-                dev->stats.rx_frame_errors++;
+                dev->net->stats.rx_frame_errors++;
                 nc_ensure_sync(dev);
                 return 0;
         }
@@ -442,12 +442,12 @@ static int net1080_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
         hdr_len = le16_to_cpup(&header->hdr_len);
         packet_len = le16_to_cpup(&header->packet_len);
         if (FRAMED_SIZE(packet_len) > NC_MAX_PACKET) {
-                dev->stats.rx_frame_errors++;
+                dev->net->stats.rx_frame_errors++;
                 dbg("packet too big, %d", packet_len);
                 nc_ensure_sync(dev);
                 return 0;
         } else if (hdr_len < MIN_HEADER) {
-                dev->stats.rx_frame_errors++;
+                dev->net->stats.rx_frame_errors++;
                 dbg("header too short, %d", hdr_len);
                 nc_ensure_sync(dev);
                 return 0;
@@ -465,21 +465,21 @@ static int net1080_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 
         if ((packet_len & 0x01) == 0) {
                 if (skb->data [packet_len] != PAD_BYTE) {
-                        dev->stats.rx_frame_errors++;
+                        dev->net->stats.rx_frame_errors++;
                         dbg("bad pad");
                         return 0;
                 }
                 skb_trim(skb, skb->len - 1);
         }
         if (skb->len != packet_len) {
-                dev->stats.rx_frame_errors++;
+                dev->net->stats.rx_frame_errors++;
                 dbg("bad packet len %d (expected %d)",
                         skb->len, packet_len);
                 nc_ensure_sync(dev);
                 return 0;
         }
         if (header->packet_id != get_unaligned(&trailer->packet_id)) {
-                dev->stats.rx_fifo_errors++;
+                dev->net->stats.rx_fifo_errors++;
                 dbg("(2+ dropped) rx packet_id mismatch 0x%x 0x%x",
                         le16_to_cpu(header->packet_id),
                         le16_to_cpu(trailer->packet_id));
diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index 73acbd244aa1..631d269ac980 100644
--- a/drivers/net/usb/pegasus.c
+++ b/drivers/net/usb/pegasus.c
@@ -1493,6 +1493,9 @@ static const struct net_device_ops pegasus_netdev_ops = {
         .ndo_set_multicast_list =       pegasus_set_multicast,
         .ndo_get_stats =                pegasus_netdev_stats,
         .ndo_tx_timeout =               pegasus_tx_timeout,
+        .ndo_change_mtu =               eth_change_mtu,
+        .ndo_set_mac_address =          eth_mac_addr,
+        .ndo_validate_addr =            eth_validate_addr,
 };
 
 static struct usb_driver pegasus_driver = {
diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c
index 1bf243ef950e..2232232b7989 100644
--- a/drivers/net/usb/rndis_host.c
+++ b/drivers/net/usb/rndis_host.c
@@ -487,7 +487,7 @@ int rndis_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
                 if (unlikely(hdr->msg_type != RNDIS_MSG_PACKET
                                 || skb->len < msg_len
                                 || (data_offset + data_len + 8) > msg_len)) {
-                        dev->stats.rx_frame_errors++;
+                        dev->net->stats.rx_frame_errors++;
                         devdbg(dev, "bad rndis message %d/%d/%d/%d, len %d",
                                 le32_to_cpu(hdr->msg_type),
                                 msg_len, data_offset, data_len, skb->len);
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index 89a91f8c22de..fe045896406b 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -1108,18 +1108,18 @@ static int smsc95xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
                 if (unlikely(header & RX_STS_ES_)) {
                         if (netif_msg_rx_err(dev))
                                 devdbg(dev, "Error header=0x%08x", header);
-                        dev->stats.rx_errors++;
-                        dev->stats.rx_dropped++;
+                        dev->net->stats.rx_errors++;
+                        dev->net->stats.rx_dropped++;
 
                         if (header & RX_STS_CRC_) {
-                                dev->stats.rx_crc_errors++;
+                                dev->net->stats.rx_crc_errors++;
                         } else {
                                 if (header & (RX_STS_TL_ | RX_STS_RF_))
-                                        dev->stats.rx_frame_errors++;
+                                        dev->net->stats.rx_frame_errors++;
 
                                 if ((header & RX_STS_LE_) &&
                                         (!(header & RX_STS_FT_)))
-                                        dev->stats.rx_length_errors++;
+                                        dev->net->stats.rx_length_errors++;
                         }
                 } else {
                         /* ETH_FRAME_LEN + 4(CRC) + 2(COE) + 4(Vlan) */
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 22c0585a0319..edfd9e10ceba 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -234,8 +234,8 @@ void usbnet_skb_return (struct usbnet *dev, struct sk_buff *skb)
         int     status;
 
         skb->protocol = eth_type_trans (skb, dev->net);
-        dev->stats.rx_packets++;
-        dev->stats.rx_bytes += skb->len;
+        dev->net->stats.rx_packets++;
+        dev->net->stats.rx_bytes += skb->len;
 
         if (netif_msg_rx_status (dev))
                 devdbg (dev, "< rx, len %zu, type 0x%x",
@@ -397,7 +397,7 @@ static inline void rx_process (struct usbnet *dev, struct sk_buff *skb)
                 if (netif_msg_rx_err (dev))
                         devdbg (dev, "drop");
 error:
-                dev->stats.rx_errors++;
+                dev->net->stats.rx_errors++;
                 skb_queue_tail (&dev->done, skb);
         }
 }
@@ -420,8 +420,8 @@ static void rx_complete (struct urb *urb)
         case 0:
                 if (skb->len < dev->net->hard_header_len) {
                         entry->state = rx_cleanup;
-                        dev->stats.rx_errors++;
-                        dev->stats.rx_length_errors++;
+                        dev->net->stats.rx_errors++;
+                        dev->net->stats.rx_length_errors++;
                         if (netif_msg_rx_err (dev))
                                 devdbg (dev, "rx length %d", skb->len);
                 }
@@ -433,7 +433,7 @@ static void rx_complete (struct urb *urb)
          * storm, recovering as needed.
          */
         case -EPIPE:
-                dev->stats.rx_errors++;
+                dev->net->stats.rx_errors++;
                 usbnet_defer_kevent (dev, EVENT_RX_HALT);
                 // FALLTHROUGH
 
@@ -451,7 +451,7 @@ static void rx_complete (struct urb *urb)
         case -EPROTO:
         case -ETIME:
         case -EILSEQ:
-                dev->stats.rx_errors++;
+                dev->net->stats.rx_errors++;
                 if (!timer_pending (&dev->delay)) {
                         mod_timer (&dev->delay, jiffies + THROTTLE_JIFFIES);
                         if (netif_msg_link (dev))
@@ -465,12 +465,12 @@ block:
 
         /* data overrun ... flush fifo? */
         case -EOVERFLOW:
-                dev->stats.rx_over_errors++;
+                dev->net->stats.rx_over_errors++;
                 // FALLTHROUGH
 
         default:
                 entry->state = rx_cleanup;
-                dev->stats.rx_errors++;
+                dev->net->stats.rx_errors++;
                 if (netif_msg_rx_err (dev))
                         devdbg (dev, "rx status %d", urb_status);
                 break;
@@ -583,8 +583,8 @@ int usbnet_stop (struct net_device *net)
 
         if (netif_msg_ifdown (dev))
                 devinfo (dev, "stop stats: rx/tx %ld/%ld, errs %ld/%ld",
-                        dev->stats.rx_packets, dev->stats.tx_packets,
-                        dev->stats.rx_errors, dev->stats.tx_errors
+                        net->stats.rx_packets, net->stats.tx_packets,
+                        net->stats.rx_errors, net->stats.tx_errors
                         );
 
         // ensure there are no more active urbs
@@ -891,10 +891,10 @@ static void tx_complete (struct urb *urb)
         struct usbnet           *dev = entry->dev;
 
         if (urb->status == 0) {
-                dev->stats.tx_packets++;
-                dev->stats.tx_bytes += entry->length;
+                dev->net->stats.tx_packets++;
+                dev->net->stats.tx_bytes += entry->length;
         } else {
-                dev->stats.tx_errors++;
+                dev->net->stats.tx_errors++;
 
                 switch (urb->status) {
                 case -EPIPE:
@@ -1020,7 +1020,7 @@ int usbnet_start_xmit (struct sk_buff *skb, struct net_device *net)
                         devdbg (dev, "drop, code %d", retval);
 drop:
                 retval = NET_XMIT_SUCCESS;
-                dev->stats.tx_dropped++;
+                dev->net->stats.tx_dropped++;
                 if (skb)
                         dev_kfree_skb_any (skb);
                 usb_free_urb (urb);
diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index 87197dd9c788..1097c72e44d5 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -208,11 +208,14 @@ rx_drop:
 
 static struct net_device_stats *veth_get_stats(struct net_device *dev)
 {
-        struct veth_priv *priv = netdev_priv(dev);
-        struct net_device_stats *dev_stats = &dev->stats;
-        unsigned int cpu;
+        struct veth_priv *priv;
+        struct net_device_stats *dev_stats;
+        int cpu;
         struct veth_net_stats *stats;
 
+        priv = netdev_priv(dev);
+        dev_stats = &dev->stats;
+
         dev_stats->rx_packets = 0;
         dev_stats->tx_packets = 0;
         dev_stats->rx_bytes = 0;
@@ -220,17 +223,16 @@ static struct net_device_stats *veth_get_stats(struct net_device *dev)
         dev_stats->tx_dropped = 0;
         dev_stats->rx_dropped = 0;
 
-        if (priv->stats)
-                for_each_online_cpu(cpu) {
-                        stats = per_cpu_ptr(priv->stats, cpu);
+        for_each_online_cpu(cpu) {
+                stats = per_cpu_ptr(priv->stats, cpu);
 
-                        dev_stats->rx_packets += stats->rx_packets;
-                        dev_stats->tx_packets += stats->tx_packets;
-                        dev_stats->rx_bytes += stats->rx_bytes;
-                        dev_stats->tx_bytes += stats->tx_bytes;
-                        dev_stats->tx_dropped += stats->tx_dropped;
-                        dev_stats->rx_dropped += stats->rx_dropped;
-                }
+                dev_stats->rx_packets += stats->rx_packets;
+                dev_stats->tx_packets += stats->tx_packets;
+                dev_stats->rx_bytes += stats->rx_bytes;
+                dev_stats->tx_bytes += stats->tx_bytes;
+                dev_stats->tx_dropped += stats->tx_dropped;
+                dev_stats->rx_dropped += stats->rx_dropped;
+        }
 
         return dev_stats;
 }
@@ -257,8 +259,6 @@ static int veth_close(struct net_device *dev)
         netif_carrier_off(dev);
         netif_carrier_off(priv->peer);
 
-        free_percpu(priv->stats);
-        priv->stats = NULL;
         return 0;
 }
 
@@ -289,6 +289,15 @@ static int veth_dev_init(struct net_device *dev)
         return 0;
 }
 
+static void veth_dev_free(struct net_device *dev)
+{
+        struct veth_priv *priv;
+
+        priv = netdev_priv(dev);
+        free_percpu(priv->stats);
+        free_netdev(dev);
+}
+
 static const struct net_device_ops veth_netdev_ops = {
         .ndo_init            = veth_dev_init,
         .ndo_open            = veth_open,
@@ -306,7 +315,7 @@ static void veth_setup(struct net_device *dev)
         dev->netdev_ops = &veth_netdev_ops;
         dev->ethtool_ops = &veth_ethtool_ops;
         dev->features |= NETIF_F_LLTX;
-        dev->destructor = free_netdev;
+        dev->destructor = veth_dev_free;
 }
 
 /*
diff --git a/drivers/net/via-rhine.c b/drivers/net/via-rhine.c
index d3489a3c4c03..88c30a58b4bd 100644
--- a/drivers/net/via-rhine.c
+++ b/drivers/net/via-rhine.c
@@ -621,6 +621,7 @@ static const struct net_device_ops rhine_netdev_ops = {
         .ndo_start_xmit          = rhine_start_tx,
         .ndo_get_stats           = rhine_get_stats,
         .ndo_set_multicast_list  = rhine_set_rx_mode,
+        .ndo_change_mtu          = eth_change_mtu,
         .ndo_validate_addr       = eth_validate_addr,
         .ndo_set_mac_address     = eth_mac_addr,
         .ndo_do_ioctl            = netdev_ioctl,
diff --git a/drivers/net/wan/hd64570.c b/drivers/net/wan/hd64570.c
index 223238de475c..1ea1ef6c3b96 100644
--- a/drivers/net/wan/hd64570.c
+++ b/drivers/net/wan/hd64570.c
@@ -584,8 +584,9 @@ static void sca_dump_rings(struct net_device *dev)
                sca_in(DSR_RX(phy_node(port)), card) & DSR_DE ? "" : "in");
         for (cnt = 0; cnt < port_to_card(port)->rx_ring_buffers; cnt++)
                 printk(" %02X", readb(&(desc_address(port, cnt, 0)->stat)));
+        printk(KERN_CONT "\n");
 
-        printk("\n" KERN_DEBUG "TX ring: CDA=%u EDA=%u DSR=%02X in=%u "
+        printk(KERN_DEBUG "TX ring: CDA=%u EDA=%u DSR=%02X in=%u "
                "last=%u %sactive",
                sca_inw(get_dmac_tx(port) + CDAL, card),
                sca_inw(get_dmac_tx(port) + EDAL, card),
diff --git a/drivers/net/wan/hd64572.c b/drivers/net/wan/hd64572.c
index 497b003d7239..f099c34a3ae2 100644
--- a/drivers/net/wan/hd64572.c
+++ b/drivers/net/wan/hd64572.c
@@ -529,8 +529,9 @@ static void sca_dump_rings(struct net_device *dev)
                sca_in(DSR_RX(port->chan), card) & DSR_DE ? "" : "in");
         for (cnt = 0; cnt < port->card->rx_ring_buffers; cnt++)
                 printk(" %02X", readb(&(desc_address(port, cnt, 0)->stat)));
+        printk(KERN_CONT "\n");
 
-        printk("\n" KERN_DEBUG "TX ring: CDA=%u EDA=%u DSR=%02X in=%u "
+        printk(KERN_DEBUG "TX ring: CDA=%u EDA=%u DSR=%02X in=%u "
                "last=%u %sactive",
                sca_inl(get_dmac_tx(port) + CDAL, card),
                sca_inl(get_dmac_tx(port) + EDAL, card),
diff --git a/drivers/net/wan/sbni.c b/drivers/net/wan/sbni.c
index 3fb9dbc88a1a..d14e95a08d66 100644
--- a/drivers/net/wan/sbni.c
+++ b/drivers/net/wan/sbni.c
@@ -326,11 +326,9 @@ sbni_pci_probe( struct net_device  *dev )
                 }
 
                 if (pci_irq_line <= 0 || pci_irq_line >= nr_irqs)
-                        printk( KERN_WARNING "  WARNING: The PCI BIOS assigned "
-                                "this PCI card to IRQ %d, which is unlikely "
-                                "to work!.\n"
-                                KERN_WARNING " You should use the PCI BIOS "
-                                "setup to assign a valid IRQ line.\n",
+                        printk( KERN_WARNING
+        "  WARNING: The PCI BIOS assigned this PCI card to IRQ %d, which is unlikely to work!.\n"
+        " You should use the PCI BIOS setup to assign a valid IRQ line.\n",
                                 pci_irq_line );
 
                 /* avoiding re-enable dual adapters */
diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index c70604f0329e..8ce5e4cee168 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -5918,20 +5918,19 @@ static int airo_set_essid(struct net_device *dev,
         readSsidRid(local, &SSID_rid);
 
         /* Check if we asked for `any' */
-        if(dwrq->flags == 0) {
+        if (dwrq->flags == 0) {
                 /* Just send an empty SSID list */
                 memset(&SSID_rid, 0, sizeof(SSID_rid));
         } else {
-                int     index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
+                unsigned index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
 
                 /* Check the size of the string */
-                if(dwrq->length > IW_ESSID_MAX_SIZE) {
+                if (dwrq->length > IW_ESSID_MAX_SIZE)
                         return -E2BIG ;
-                }
+
                 /* Check if index is valid */
-                if((index < 0) || (index >= 4)) {
+                if (index >= ARRAY_SIZE(SSID_rid.ssids))
                         return -EINVAL;
-                }
 
                 /* Set the SSID */
                 memset(SSID_rid.ssids[index].ssid, 0,
@@ -6819,7 +6818,7 @@ static int airo_set_txpow(struct net_device *dev,
                 return -EINVAL;
         }
         clear_bit (FLAG_RADIO_OFF, &local->flags);
-        for (i = 0; cap_rid.txPowerLevels[i] && (i < 8); i++)
+        for (i = 0; i < 8 && cap_rid.txPowerLevels[i]; i++)
                 if (v == cap_rid.txPowerLevels[i]) {
                         readConfigRid(local, 1);
                         local->config.txPower = v;
diff --git a/drivers/net/wireless/ath/Kconfig b/drivers/net/wireless/ath/Kconfig
index d26e7b485315..eb0337c49546 100644
--- a/drivers/net/wireless/ath/Kconfig
+++ b/drivers/net/wireless/ath/Kconfig
@@ -1,5 +1,6 @@
 config ATH_COMMON
         tristate "Atheros Wireless Cards"
+        depends on WLAN_80211
         depends on ATH5K || ATH9K || AR9170_USB
 
 source "drivers/net/wireless/ath/ath5k/Kconfig"
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index ea045151f953..029c1bc7468f 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -2970,6 +2970,9 @@ ath5k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
         if (modparam_nohwcrypt)
                 return -EOPNOTSUPP;
 
+        if (sc->opmode == NL80211_IFTYPE_AP)
+                return -EOPNOTSUPP;
+
         switch (key->alg) {
         case ALG_WEP:
         case ALG_TKIP:
diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c
index 1aeafb511ddd..aad259b4c197 100644
--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -478,6 +478,18 @@ void ath9k_ani_reset(struct ath_hw *ah)
                         "Reset ANI state opmode %u\n", ah->opmode);
                 ah->stats.ast_ani_reset++;
 
+                if (ah->opmode == NL80211_IFTYPE_AP) {
+                        /*
+                         * ath9k_hw_ani_control() will only process items set on
+                         * ah->ani_function
+                         */
+                        if (IS_CHAN_2GHZ(chan))
+                                ah->ani_function = (ATH9K_ANI_SPUR_IMMUNITY_LEVEL |
+                                                    ATH9K_ANI_FIRSTEP_LEVEL);
+                        else
+                                ah->ani_function = 0;
+                }
+
                 ath9k_hw_ani_control(ah, ATH9K_ANI_NOISE_IMMUNITY_LEVEL, 0);
                 ath9k_hw_ani_control(ah, ATH9K_ANI_SPUR_IMMUNITY_LEVEL, 0);
                 ath9k_hw_ani_control(ah, ATH9K_ANI_FIRSTEP_LEVEL, 0);
diff --git a/drivers/net/wireless/ath/ath9k/eeprom.c b/drivers/net/wireless/ath/ath9k/eeprom.c
index a2fda702b620..ce0e86c36a82 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/eeprom.c
@@ -460,7 +460,7 @@ static int ath9k_hw_4k_check_eeprom(struct ath_hw *ah)
                 integer = swab32(eep->modalHeader.antCtrlCommon);
                 eep->modalHeader.antCtrlCommon = integer;
 
-                for (i = 0; i < AR5416_MAX_CHAINS; i++) {
+                for (i = 0; i < AR5416_EEP4K_MAX_CHAINS; i++) {
                         integer = swab32(eep->modalHeader.antCtrlChain[i]);
                         eep->modalHeader.antCtrlChain[i] = integer;
                 }
@@ -914,7 +914,7 @@ static void ath9k_hw_set_4k_power_per_rate_table(struct ath_hw *ah,
                         ctlMode, numCtlModes, isHt40CtlMode,
                         (pCtlMode[ctlMode] & EXT_ADDITIVE));
 
-                for (i = 0; (i < AR5416_NUM_CTLS) &&
+                for (i = 0; (i < AR5416_EEP4K_NUM_CTLS) &&
                                 pEepData->ctlIndex[i]; i++) {
                         DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
                                 "  LOOP-Ctlidx %d: cfgCtl 0x%2.2x "
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index b61a071788a5..4ccf48e396df 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -355,7 +355,14 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
                 }
 
                 if (bf_next == NULL) {
-                        INIT_LIST_HEAD(&bf_head);
+                        /*
+                         * Make sure the last desc is reclaimed if it
+                         * not a holding desc.
+                         */
+                        if (!bf_last->bf_stale)
+                                list_move_tail(&bf->list, &bf_head);
+                        else
+                                INIT_LIST_HEAD(&bf_head);
                 } else {
                         ASSERT(!list_empty(bf_q));
                         list_move_tail(&bf->list, &bf_head);
diff --git a/drivers/net/wireless/ath/regd.c b/drivers/net/wireless/ath/regd.c
index eef370bd1211..bf3d25ba7be1 100644
--- a/drivers/net/wireless/ath/regd.c
+++ b/drivers/net/wireless/ath/regd.c
@@ -474,6 +474,21 @@ ath_regd_init_wiphy(struct ath_regulatory *reg,
         return 0;
 }
 
+/*
+ * Some users have reported their EEPROM programmed with
+ * 0x8000 set, this is not a supported regulatory domain
+ * but since we have more than one user with it we need
+ * a solution for them. We default to 0x64, which is the
+ * default Atheros world regulatory domain.
+ */
+static void ath_regd_sanitize(struct ath_regulatory *reg)
+{
+        if (reg->current_rd != COUNTRY_ERD_FLAG)
+                return;
+        printk(KERN_DEBUG "ath: EEPROM regdomain sanitized\n");
+        reg->current_rd = 0x64;
+}
+
 int
 ath_regd_init(struct ath_regulatory *reg,
               struct wiphy *wiphy,
@@ -486,6 +501,8 @@ ath_regd_init(struct ath_regulatory *reg,
         if (!reg)
                 return -EINVAL;
 
+        ath_regd_sanitize(reg);
+
         printk(KERN_DEBUG "ath: EEPROM regdomain: 0x%0x\n", reg->current_rd);
 
         if (!ath_regd_is_eeprom_valid(reg)) {
diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h
index f580c2812d91..40448067e4cc 100644
--- a/drivers/net/wireless/b43/b43.h
+++ b/drivers/net/wireless/b43/b43.h
@@ -648,6 +648,7 @@ struct b43_wl {
         u8 nr_devs;
 
         bool radiotap_enabled;
+        bool radio_enabled;
 
         /* The beacon we are currently using (AP or IBSS mode).
          * This beacon stuff is protected by the irq_lock. */
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 6456afebdba1..e71c8d9cd706 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -3497,8 +3497,8 @@ static int b43_op_config(struct ieee80211_hw *hw, u32 changed)
         if (phy->ops->set_rx_antenna)
                 phy->ops->set_rx_antenna(dev, antenna);
 
-        if (!!conf->radio_enabled != phy->radio_on) {
-                if (conf->radio_enabled) {
+        if (wl->radio_enabled != phy->radio_on) {
+                if (wl->radio_enabled) {
                         b43_software_rfkill(dev, false);
                         b43info(dev->wl, "Radio turned on by software\n");
                         if (!dev->radio_hw_enable) {
@@ -4339,6 +4339,7 @@ static int b43_op_start(struct ieee80211_hw *hw)
         wl->beacon0_uploaded = 0;
         wl->beacon1_uploaded = 0;
         wl->beacon_templates_virgin = 1;
+        wl->radio_enabled = 1;
 
         mutex_lock(&wl->mutex);
 
@@ -4378,6 +4379,7 @@ static void b43_op_stop(struct ieee80211_hw *hw)
         if (b43_status(dev) >= B43_STAT_STARTED)
                 b43_wireless_core_stop(dev);
         b43_wireless_core_exit(dev);
+        wl->radio_enabled = 0;
         mutex_unlock(&wl->mutex);
 
         cancel_work_sync(&(wl->txpower_adjust_work));
@@ -4560,6 +4562,7 @@ static int b43_wireless_core_attach(struct b43_wldev *dev)
                 B43_WARN_ON(1);
 
         dev->phy.gmode = have_2ghz_phy;
+        dev->phy.radio_on = 1;
         tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;
         b43_wireless_core_reset(dev, tmp);
 
diff --git a/drivers/net/wireless/b43/pcmcia.c b/drivers/net/wireless/b43/pcmcia.c
index 3cfc30307a27..6c3a74964ab8 100644
--- a/drivers/net/wireless/b43/pcmcia.c
+++ b/drivers/net/wireless/b43/pcmcia.c
@@ -35,6 +35,7 @@
 
 static /*const */ struct pcmcia_device_id b43_pcmcia_tbl[] = {
         PCMCIA_DEVICE_MANF_CARD(0x2D0, 0x448),
+        PCMCIA_DEVICE_MANF_CARD(0x2D0, 0x476),
         PCMCIA_DEVICE_NULL,
 };
 
diff --git a/drivers/net/wireless/b43legacy/b43legacy.h b/drivers/net/wireless/b43legacy/b43legacy.h
index 77fda148ac46..038baa8869e2 100644
--- a/drivers/net/wireless/b43legacy/b43legacy.h
+++ b/drivers/net/wireless/b43legacy/b43legacy.h
@@ -607,6 +607,7 @@ struct b43legacy_wl {
         u8 nr_devs;
 
         bool radiotap_enabled;
+        bool radio_enabled;
 
         /* The beacon we are currently using (AP or IBSS mode).
          * This beacon stuff is protected by the irq_lock. */
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index e5136fb65ddd..c4973c1942bf 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -2689,8 +2689,8 @@ static int b43legacy_op_dev_config(struct ieee80211_hw *hw,
         /* Antennas for RX and management frame TX. */
         b43legacy_mgmtframe_txantenna(dev, antenna_tx);
 
-        if (!!conf->radio_enabled != phy->radio_on) {
-                if (conf->radio_enabled) {
+        if (wl->radio_enabled != phy->radio_on) {
+                if (wl->radio_enabled) {
                         b43legacy_radio_turn_on(dev);
                         b43legacyinfo(dev->wl, "Radio turned on by software\n");
                         if (!dev->radio_hw_enable)
@@ -3441,6 +3441,7 @@ static int b43legacy_op_start(struct ieee80211_hw *hw)
         wl->beacon0_uploaded = 0;
         wl->beacon1_uploaded = 0;
         wl->beacon_templates_virgin = 1;
+        wl->radio_enabled = 1;
 
         mutex_lock(&wl->mutex);
 
@@ -3479,6 +3480,7 @@ static void b43legacy_op_stop(struct ieee80211_hw *hw)
         if (b43legacy_status(dev) >= B43legacy_STAT_STARTED)
                 b43legacy_wireless_core_stop(dev);
         b43legacy_wireless_core_exit(dev);
+        wl->radio_enabled = 0;
         mutex_unlock(&wl->mutex);
 }
 
@@ -3620,6 +3622,7 @@ static int b43legacy_wireless_core_attach(struct b43legacy_wldev *dev)
                 have_bphy = 1;
 
         dev->phy.gmode = (have_gphy || have_bphy);
+        dev->phy.radio_on = 1;
         tmp = dev->phy.gmode ? B43legacy_TMSLOW_GMODE : 0;
         b43legacy_wireless_core_reset(dev, tmp);
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h
index fbb3a573463e..2de6471d4be9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.h
@@ -112,7 +112,7 @@ enum iwl3945_antenna {
 #define IWL_TX_FIFO_NONE        7
 
 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
-#define IWL_MIN_NUM_QUEUES      4
+#define IWL39_MIN_NUM_QUEUES    4
 
 #define IEEE80211_DATA_LEN              2304
 #define IEEE80211_4ADDR_LEN             30
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 6d1519e1f011..355f50ea7fef 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2675,12 +2675,10 @@ static ssize_t show_power_level(struct device *d,
                                 struct device_attribute *attr, char *buf)
 {
         struct iwl_priv *priv = dev_get_drvdata(d);
-        int mode = priv->power_data.user_power_setting;
         int level = priv->power_data.power_mode;
         char *p = buf;
 
-        p += sprintf(p, "INDEX:%d\t", level);
-        p += sprintf(p, "USER:%d\n", mode);
+        p += sprintf(p, "%d\n", level);
         return p - buf + 1;
 }
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 6ab07165ea28..18b135f510e5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1332,6 +1332,9 @@ int iwl_setup_mac(struct iwl_priv *priv)
 
         hw->wiphy->custom_regulatory = true;
 
+        /* Firmware does not support this */
+        hw->wiphy->disable_beacon_hints = true;
+
         hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
         /* we create the 802.11 header and a zero-length SSID element */
         hw->wiphy->max_scan_ie_len = IWL_MAX_PROBE_REQUEST - 24 - 2;
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 11e08c068917..ca00cc8ad4c7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -308,18 +308,18 @@ static ssize_t iwl_dbgfs_nvm_read(struct file *file,
                 return -ENODATA;
         }
 
+        ptr = priv->eeprom;
+        if (!ptr) {
+                IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
+                return -ENOMEM;
+        }
+
         /* 4 characters for byte 0xYY */
         buf = kzalloc(buf_size, GFP_KERNEL);
         if (!buf) {
                 IWL_ERR(priv, "Can not allocate Buffer\n");
                 return -ENOMEM;
         }
-
-        ptr = priv->eeprom;
-        if (!ptr) {
-                IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
-                return -ENOMEM;
-        }
         pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s\n",
                         (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
                         ? "OTP" : "EEPROM");
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index e2d620f0b6e8..650e20af20fa 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -258,8 +258,10 @@ struct iwl_channel_info {
 #define IWL_TX_FIFO_HCCA_2      6
 #define IWL_TX_FIFO_NONE        7
 
-/* Minimum number of queues. MAX_NUM is defined in hw specific files */
-#define IWL_MIN_NUM_QUEUES      4
+/* Minimum number of queues. MAX_NUM is defined in hw specific files.
+ * Set the minimum to accommodate the 4 standard TX queues, 1 command
+ * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
+#define IWL_MIN_NUM_QUEUES      10
 
 /* Power management (not Tx power) structures */
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index 2addf735b193..ffd5c61a7553 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -566,6 +566,8 @@ int iwl_remove_default_wep_key(struct iwl_priv *priv,
         unsigned long flags;
 
         spin_lock_irqsave(&priv->sta_lock, flags);
+        IWL_DEBUG_WEP(priv, "Removing default WEP key: idx=%d\n",
+                      keyconf->keyidx);
 
         if (!test_and_clear_bit(keyconf->keyidx, &priv->ucode_key_table))
                 IWL_ERR(priv, "index %d not used in uCode key table.\n",
@@ -573,6 +575,11 @@ int iwl_remove_default_wep_key(struct iwl_priv *priv,
 
         priv->default_wep_key--;
         memset(&priv->wep_keys[keyconf->keyidx], 0, sizeof(priv->wep_keys[0]));
+        if (iwl_is_rfkill(priv)) {
+                IWL_DEBUG_WEP(priv, "Not sending REPLY_WEPKEY command due to RFKILL.\n");
+                spin_unlock_irqrestore(&priv->sta_lock, flags);
+                return 0;
+        }
         ret = iwl_send_static_wepkey_cmd(priv, 1);
         IWL_DEBUG_WEP(priv, "Remove default WEP key: idx=%d ret=%d\n",
                       keyconf->keyidx, ret);
@@ -853,6 +860,11 @@ int iwl_remove_dynamic_key(struct iwl_priv *priv,
         priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
         priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
 
+        if (iwl_is_rfkill(priv)) {
+                IWL_DEBUG_WEP(priv, "Not sending REPLY_ADD_STA command because RFKILL enabled. \n");
+                spin_unlock_irqrestore(&priv->sta_lock, flags);
+                return 0;
+        }
         ret =  iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
         spin_unlock_irqrestore(&priv->sta_lock, flags);
         return ret;
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 85ae7a62109c..2e89040e63be 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -720,8 +720,6 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
                 goto drop_unlock;
         }
 
-        spin_unlock_irqrestore(&priv->lock, flags);
-
         hdr_len = ieee80211_hdrlen(fc);
 
         /* Find (or create) index into station table for destination station */
@@ -729,7 +727,7 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
         if (sta_id == IWL_INVALID_STATION) {
                 IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n",
                                hdr->addr1);
-                goto drop;
+                goto drop_unlock;
         }
 
         IWL_DEBUG_TX(priv, "station Id %d\n", sta_id);
@@ -750,14 +748,17 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
                         txq_id = priv->stations[sta_id].tid[tid].agg.txq_id;
                         swq_id = iwl_virtual_agg_queue_num(swq_id, txq_id);
                 }
-                priv->stations[sta_id].tid[tid].tfds_in_queue++;
         }
 
         txq = &priv->txq[txq_id];
         q = &txq->q;
         txq->swq_id = swq_id;
 
-        spin_lock_irqsave(&priv->lock, flags);
+        if (unlikely(iwl_queue_space(q) < q->high_mark))
+                goto drop_unlock;
+
+        if (ieee80211_is_data_qos(fc))
+                priv->stations[sta_id].tid[tid].tfds_in_queue++;
 
         /* Set up driver data for this TFD */
         memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info));
@@ -872,7 +873,8 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
         iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd->hdr, hdr_len);
 
         /* Set up entry for this TFD in Tx byte-count array */
-        priv->cfg->ops->lib->txq_update_byte_cnt_tbl(priv, txq,
+        if (info->flags & IEEE80211_TX_CTL_AMPDU)
+                priv->cfg->ops->lib->txq_update_byte_cnt_tbl(priv, txq,
                                                      le16_to_cpu(tx_cmd->len));
 
         pci_dma_sync_single_for_device(priv->pci_dev, txcmd_phys,
@@ -901,7 +903,6 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 
 drop_unlock:
         spin_unlock_irqrestore(&priv->lock, flags);
-drop:
         return -1;
 }
 EXPORT_SYMBOL(iwl_tx_skb);
@@ -1170,6 +1171,8 @@ int iwl_tx_agg_start(struct iwl_priv *priv, const u8 *ra, u16 tid, u16 *ssn)
                 IWL_ERR(priv, "Start AGG on invalid station\n");
                 return -ENXIO;
         }
+        if (unlikely(tid >= MAX_TID_COUNT))
+                return -EINVAL;
 
         if (priv->stations[sta_id].tid[tid].agg.state != IWL_AGG_OFF) {
                 IWL_ERR(priv, "Start AGG when state is not IWL_AGG_OFF !\n");
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index cb9bd4c8f25e..523843369ca2 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -3643,12 +3643,10 @@ static ssize_t show_power_level(struct device *d,
                                 struct device_attribute *attr, char *buf)
 {
         struct iwl_priv *priv = dev_get_drvdata(d);
-        int mode = priv->power_data.user_power_setting;
         int level = priv->power_data.power_mode;
         char *p = buf;
 
-        p += sprintf(p, "INDEX:%d\t", level);
-        p += sprintf(p, "USER:%d\n", mode);
+        p += sprintf(p, "%d\n", level);
         return p - buf + 1;
 }
 
@@ -3970,6 +3968,9 @@ static int iwl3945_setup_mac(struct iwl_priv *priv)
 
         hw->wiphy->custom_regulatory = true;
 
+        /* Firmware does not support this */
+        hw->wiphy->disable_beacon_hints = true;
+
         hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX_3945;
         /* we create the 802.11 header and a zero-length SSID element */
         hw->wiphy->max_scan_ie_len = IWL_MAX_PROBE_REQUEST - 24 - 2;
@@ -4020,10 +4021,10 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
         SET_IEEE80211_DEV(hw, &pdev->dev);
 
         if ((iwl3945_mod_params.num_of_queues > IWL39_MAX_NUM_QUEUES) ||
-             (iwl3945_mod_params.num_of_queues < IWL_MIN_NUM_QUEUES)) {
+             (iwl3945_mod_params.num_of_queues < IWL39_MIN_NUM_QUEUES)) {
                 IWL_ERR(priv,
                         "invalid queues_num, should be between %d and %d\n",
-                        IWL_MIN_NUM_QUEUES, IWL39_MAX_NUM_QUEUES);
+                        IWL39_MIN_NUM_QUEUES, IWL39_MAX_NUM_QUEUES);
                 err = -EINVAL;
                 goto out_ieee80211_free_hw;
         }
diff --git a/drivers/net/wireless/iwmc3200wifi/Kconfig b/drivers/net/wireless/iwmc3200wifi/Kconfig
index 1eccb6df46dd..030401d367d3 100644
--- a/drivers/net/wireless/iwmc3200wifi/Kconfig
+++ b/drivers/net/wireless/iwmc3200wifi/Kconfig
@@ -4,6 +4,15 @@ config IWM
         depends on CFG80211
         select WIRELESS_EXT
         select FW_LOADER
+        help
+          The Intel Wireless Multicomm 3200 hardware is a combo
+          card with GPS, Bluetooth, WiMax and 802.11 radios. It
+          runs over SDIO and is typically found on Moorestown
+          based platform. This driver takes care of the 802.11
+          part, which is a fullmac one.
+
+          If you choose to build it as a module, it'll be called
+          iwmc3200wifi.ko.
 
 config IWM_DEBUG
         bool "Enable full debugging output in iwmc3200wifi"
diff --git a/drivers/net/wireless/iwmc3200wifi/commands.c b/drivers/net/wireless/iwmc3200wifi/commands.c
index 834a7f544e5d..e2334d123599 100644
--- a/drivers/net/wireless/iwmc3200wifi/commands.c
+++ b/drivers/net/wireless/iwmc3200wifi/commands.c
@@ -220,6 +220,7 @@ int iwm_store_rxiq_calib_result(struct iwm_priv *iwm)
         eeprom_rxiq = iwm_eeprom_access(iwm, IWM_EEPROM_CALIB_RXIQ);
         if (IS_ERR(eeprom_rxiq)) {
                 IWM_ERR(iwm, "Couldn't access EEPROM RX IQ entry\n");
+                kfree(rxiq);
                 return PTR_ERR(eeprom_rxiq);
         }
 
diff --git a/drivers/net/wireless/iwmc3200wifi/netdev.c b/drivers/net/wireless/iwmc3200wifi/netdev.c
index aaa20c6885c8..bf294e41753b 100644
--- a/drivers/net/wireless/iwmc3200wifi/netdev.c
+++ b/drivers/net/wireless/iwmc3200wifi/netdev.c
@@ -106,10 +106,8 @@ void *iwm_if_alloc(int sizeof_bus, struct device *dev,
         int ret = 0;
 
         wdev = iwm_wdev_alloc(sizeof_bus, dev);
-        if (!wdev) {
-                dev_err(dev, "no memory for wireless device instance\n");
-                return ERR_PTR(-ENOMEM);
-        }
+        if (IS_ERR(wdev))
+                return wdev;
 
         iwm = wdev_to_iwm(wdev);
         iwm->bus_ops = if_ops;
@@ -151,8 +149,8 @@ void iwm_if_free(struct iwm_priv *iwm)
                 return;
 
         free_netdev(iwm_to_ndev(iwm));
-        iwm_wdev_free(iwm);
         iwm_priv_deinit(iwm);
+        iwm_wdev_free(iwm);
 }
 
 int iwm_if_add(struct iwm_priv *iwm)
diff --git a/drivers/net/wireless/libertas/11d.c b/drivers/net/wireless/libertas/11d.c
index 9a5408e7d94a..5c6968101f0d 100644
--- a/drivers/net/wireless/libertas/11d.c
+++ b/drivers/net/wireless/libertas/11d.c
@@ -47,7 +47,7 @@ static u8 lbs_region_2_code(u8 *region)
 {
         u8 i;
 
-        for (i = 0; region[i] && i < COUNTRY_CODE_LEN; i++)
+        for (i = 0; i < COUNTRY_CODE_LEN && region[i]; i++)
                 region[i] = toupper(region[i]);
 
         for (i = 0; i < ARRAY_SIZE(region_code_mapping); i++) {
diff --git a/drivers/net/wireless/libertas/assoc.c b/drivers/net/wireless/libertas/assoc.c
index b9b374119033..d6997371c27e 100644
--- a/drivers/net/wireless/libertas/assoc.c
+++ b/drivers/net/wireless/libertas/assoc.c
@@ -1,6 +1,7 @@
 /* Copyright (C) 2006, Red Hat, Inc. */
 
 #include <linux/types.h>
+#include <linux/kernel.h>
 #include <linux/etherdevice.h>
 #include <linux/ieee80211.h>
 #include <linux/if_arp.h>
@@ -43,21 +44,21 @@ static int get_common_rates(struct lbs_private *priv,
         u16 *rates_size)
 {
         u8 *card_rates = lbs_bg_rates;
-        size_t num_card_rates = sizeof(lbs_bg_rates);
         int ret = 0, i, j;
-        u8 tmp[30];
+        u8 tmp[(ARRAY_SIZE(lbs_bg_rates) - 1) * (*rates_size - 1)];
         size_t tmp_size = 0;
 
         /* For each rate in card_rates that exists in rate1, copy to tmp */
-        for (i = 0; card_rates[i] && (i < num_card_rates); i++) {
-                for (j = 0; rates[j] && (j < *rates_size); j++) {
+        for (i = 0; i < ARRAY_SIZE(lbs_bg_rates) && card_rates[i]; i++) {
+                for (j = 0; j < *rates_size && rates[j]; j++) {
                         if (rates[j] == card_rates[i])
                                 tmp[tmp_size++] = card_rates[i];
                 }
         }
 
         lbs_deb_hex(LBS_DEB_JOIN, "AP rates    ", rates, *rates_size);
-        lbs_deb_hex(LBS_DEB_JOIN, "card rates  ", card_rates, num_card_rates);
+        lbs_deb_hex(LBS_DEB_JOIN, "card rates  ", card_rates,
+                        ARRAY_SIZE(lbs_bg_rates));
         lbs_deb_hex(LBS_DEB_JOIN, "common rates", tmp, tmp_size);
         lbs_deb_join("TX data rate 0x%02x\n", priv->cur_rate);
 
@@ -69,10 +70,7 @@ static int get_common_rates(struct lbs_private *priv,
                 lbs_pr_alert("Previously set fixed data rate %#x isn't "
                        "compatible with the network.\n", priv->cur_rate);
                 ret = -1;
-                goto done;
         }
-        ret = 0;
-
 done:
         memset(rates, 0, *rates_size);
         *rates_size = min_t(int, tmp_size, *rates_size);
@@ -322,7 +320,7 @@ static int lbs_associate(struct lbs_private *priv,
         rates = (struct mrvl_ie_rates_param_set *) pos;
         rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
         memcpy(&rates->rates, &bss->rates, MAX_RATES);
-        tmplen = MAX_RATES;
+        tmplen = min_t(u16, ARRAY_SIZE(rates->rates), MAX_RATES);
         if (get_common_rates(priv, rates->rates, &tmplen)) {
                 ret = -1;
                 goto done;
@@ -598,7 +596,7 @@ static int lbs_adhoc_join(struct lbs_private *priv,
 
         /* Copy Data rates from the rates recorded in scan response */
         memset(cmd.bss.rates, 0, sizeof(cmd.bss.rates));
-        ratesize = min_t(u16, sizeof(cmd.bss.rates), MAX_RATES);
+        ratesize = min_t(u16, ARRAY_SIZE(cmd.bss.rates), MAX_RATES);
         memcpy(cmd.bss.rates, bss->rates, ratesize);
         if (get_common_rates(priv, cmd.bss.rates, &ratesize)) {
                 lbs_deb_join("ADHOC_JOIN: get_common_rates returned error.\n");
diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c
index 01db705a38ec..685098148e10 100644
--- a/drivers/net/wireless/libertas/cmd.c
+++ b/drivers/net/wireless/libertas/cmd.c
@@ -135,8 +135,14 @@ int lbs_update_hw_spec(struct lbs_private *priv)
         /* Clamp region code to 8-bit since FW spec indicates that it should
          * only ever be 8-bit, even though the field size is 16-bit.  Some firmware
          * returns non-zero high 8 bits here.
+         *
+         * Firmware version 4.0.102 used in CF8381 has region code shifted.  We
+         * need to check for this problem and handle it properly.
          */
-        priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
+        if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V4)
+                priv->regioncode = (le16_to_cpu(cmd.regioncode) >> 8) & 0xFF;
+        else
+                priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
 
         for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
                 /* use the region code to search for the index */
diff --git a/drivers/net/wireless/libertas/defs.h b/drivers/net/wireless/libertas/defs.h
index 48da157d6cda..72f3479a4d70 100644
--- a/drivers/net/wireless/libertas/defs.h
+++ b/drivers/net/wireless/libertas/defs.h
@@ -234,6 +234,8 @@ static inline void lbs_deb_hex(unsigned int grp, const char *prompt, u8 *buf, in
 /** Mesh enable bit in FW capability */
 #define MESH_CAPINFO_ENABLE_MASK                        (1<<16)
 
+/** FW definition from Marvell v4 */
+#define MRVL_FW_V4                                      (0x04)
 /** FW definition from Marvell v5 */
 #define MRVL_FW_V5                                      (0x05)
 /** FW definition from Marvell v10 */
diff --git a/drivers/net/wireless/libertas/scan.c b/drivers/net/wireless/libertas/scan.c
index 601b54249677..6c95af3023cc 100644
--- a/drivers/net/wireless/libertas/scan.c
+++ b/drivers/net/wireless/libertas/scan.c
@@ -5,6 +5,7 @@
   *  for sending scan commands to the firmware.
   */
 #include <linux/types.h>
+#include <linux/kernel.h>
 #include <linux/etherdevice.h>
 #include <linux/if_arp.h>
 #include <asm/unaligned.h>
@@ -876,7 +877,7 @@ static inline char *lbs_translate_scan(struct lbs_private *priv,
         iwe.u.bitrate.disabled = 0;
         iwe.u.bitrate.value = 0;
 
-        for (j = 0; bss->rates[j] && (j < sizeof(bss->rates)); j++) {
+        for (j = 0; j < ARRAY_SIZE(bss->rates) && bss->rates[j]; j++) {
                 /* Bit rate given in 500 kb/s units */
                 iwe.u.bitrate.value = bss->rates[j] * 500000;
                 current_val = iwe_stream_add_value(info, start, current_val,
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index e789c6e9938c..7916ca3f84c8 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -418,6 +418,7 @@ static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
                         continue;
 
                 if (!data2->started || !hwsim_ps_rx_ok(data2, skb) ||
+                    !data->channel || !data2->channel ||
                     data->channel->center_freq != data2->channel->center_freq ||
                     !(data->group & data2->group))
                         continue;
@@ -708,7 +709,7 @@ static const struct ieee80211_ops mac80211_hwsim_ops =
 static void mac80211_hwsim_free(void)
 {
         struct list_head tmplist, *i, *tmp;
-        struct mac80211_hwsim_data *data;
+        struct mac80211_hwsim_data *data, *tmpdata;
 
         INIT_LIST_HEAD(&tmplist);
 
@@ -717,7 +718,7 @@ static void mac80211_hwsim_free(void)
                 list_move(i, &tmplist);
         spin_unlock_bh(&hwsim_radio_lock);
 
-        list_for_each_entry(data, &tmplist, list) {
+        list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
                 debugfs_remove(data->debugfs_group);
                 debugfs_remove(data->debugfs_ps);
                 debugfs_remove(data->debugfs);
@@ -1166,8 +1167,8 @@ static void __exit exit_mac80211_hwsim(void)
 {
         printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
 
-        unregister_netdev(hwsim_mon);
         mac80211_hwsim_free();
+        unregister_netdev(hwsim_mon);
 }
 
 
diff --git a/drivers/net/wireless/orinoco/main.c b/drivers/net/wireless/orinoco/main.c
index 345593c4accb..a370e510f19f 100644
--- a/drivers/net/wireless/orinoco/main.c
+++ b/drivers/net/wireless/orinoco/main.c
@@ -2521,6 +2521,8 @@ static const struct net_device_ops orinoco_netdev_ops = {
         .ndo_start_xmit         = orinoco_xmit,
         .ndo_set_multicast_list = orinoco_set_multicast_list,
         .ndo_change_mtu         = orinoco_change_mtu,
+        .ndo_set_mac_address    = eth_mac_addr,
+        .ndo_validate_addr      = eth_validate_addr,
         .ndo_tx_timeout         = orinoco_tx_timeout,
         .ndo_get_stats          = orinoco_get_stats,
 };
@@ -2555,7 +2557,6 @@ struct net_device
         priv->wireless_data.spy_data = &priv->spy_data;
         dev->wireless_data = &priv->wireless_data;
 #endif
-        /* we use the default eth_mac_addr for setting the MAC addr */
 
         /* Reserve space in skb for the SNAP header */
         dev->hard_header_len += ENCAPS_OVERHEAD;
diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c
index b618bd14583f..22ca122bd798 100644
--- a/drivers/net/wireless/p54/p54common.c
+++ b/drivers/net/wireless/p54/p54common.c
@@ -823,30 +823,30 @@ void p54_free_skb(struct ieee80211_hw *dev, struct sk_buff *skb)
         struct p54_tx_info *range;
         unsigned long flags;
 
-        if (unlikely(!skb || !dev || skb_queue_empty(&priv->tx_queue)))
+        if (unlikely(!skb || !dev || !skb_queue_len(&priv->tx_queue)))
                 return;
 
-        /* There used to be a check here to see if the SKB was on the
-         * TX queue or not.  This can never happen because all SKBs we
-         * see here successfully went through p54_assign_address()
-         * which means the SKB is on the ->tx_queue.
+        /*
+         * don't try to free an already unlinked skb
          */
+        if (unlikely((!skb->next) || (!skb->prev)))
+                return;
 
         spin_lock_irqsave(&priv->tx_queue.lock, flags);
         info = IEEE80211_SKB_CB(skb);
         range = (void *)info->rate_driver_data;
-        if (!skb_queue_is_first(&priv->tx_queue, skb)) {
+        if (skb->prev != (struct sk_buff *)&priv->tx_queue) {
                 struct ieee80211_tx_info *ni;
                 struct p54_tx_info *mr;
 
-                ni = IEEE80211_SKB_CB(skb_queue_prev(&priv->tx_queue, skb));
+                ni = IEEE80211_SKB_CB(skb->prev);
                 mr = (struct p54_tx_info *)ni->rate_driver_data;
         }
-        if (!skb_queue_is_last(&priv->tx_queue, skb)) {
+        if (skb->next != (struct sk_buff *)&priv->tx_queue) {
                 struct ieee80211_tx_info *ni;
                 struct p54_tx_info *mr;
 
-                ni = IEEE80211_SKB_CB(skb_queue_next(&priv->tx_queue, skb));
+                ni = IEEE80211_SKB_CB(skb->next);
                 mr = (struct p54_tx_info *)ni->rate_driver_data;
         }
         __skb_unlink(skb, &priv->tx_queue);
@@ -864,13 +864,15 @@ static struct sk_buff *p54_find_tx_entry(struct ieee80211_hw *dev,
         unsigned long flags;
 
         spin_lock_irqsave(&priv->tx_queue.lock, flags);
-        skb_queue_walk(&priv->tx_queue, entry) {
+        entry = priv->tx_queue.next;
+        while (entry != (struct sk_buff *)&priv->tx_queue) {
                 struct p54_hdr *hdr = (struct p54_hdr *) entry->data;
 
                 if (hdr->req_id == req_id) {
                         spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
                         return entry;
                 }
+                entry = entry->next;
         }
         spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
         return NULL;
@@ -888,33 +890,36 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb)
         int count, idx;
 
         spin_lock_irqsave(&priv->tx_queue.lock, flags);
-        skb_queue_walk(&priv->tx_queue, entry) {
+        entry = (struct sk_buff *) priv->tx_queue.next;
+        while (entry != (struct sk_buff *)&priv->tx_queue) {
                 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry);
                 struct p54_hdr *entry_hdr;
                 struct p54_tx_data *entry_data;
                 unsigned int pad = 0, frame_len;
 
                 range = (void *)info->rate_driver_data;
-                if (range->start_addr != addr)
+                if (range->start_addr != addr) {
+                        entry = entry->next;
                         continue;
+                }
 
-                if (!skb_queue_is_last(&priv->tx_queue, entry)) {
+                if (entry->next != (struct sk_buff *)&priv->tx_queue) {
                         struct ieee80211_tx_info *ni;
                         struct p54_tx_info *mr;
 
-                        ni = IEEE80211_SKB_CB(skb_queue_next(&priv->tx_queue,
-                                                             entry));
+                        ni = IEEE80211_SKB_CB(entry->next);
                         mr = (struct p54_tx_info *)ni->rate_driver_data;
                 }
 
                 __skb_unlink(entry, &priv->tx_queue);
-                spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
 
                 frame_len = entry->len;
                 entry_hdr = (struct p54_hdr *) entry->data;
                 entry_data = (struct p54_tx_data *) entry_hdr->data;
-                priv->tx_stats[entry_data->hw_queue].len--;
+                if (priv->tx_stats[entry_data->hw_queue].len)
+                        priv->tx_stats[entry_data->hw_queue].len--;
                 priv->stats.dot11ACKFailureCount += payload->tries - 1;
+                spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
 
                 /*
                  * Frames in P54_QUEUE_FWSCAN and P54_QUEUE_BEACON are
@@ -1164,21 +1169,23 @@ static int p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb,
                 }
         }
 
-        skb_queue_walk(&priv->tx_queue, entry) {
+        entry = priv->tx_queue.next;
+        while (left--) {
                 u32 hole_size;
                 info = IEEE80211_SKB_CB(entry);
                 range = (void *)info->rate_driver_data;
                 hole_size = range->start_addr - last_addr;
                 if (!target_skb && hole_size >= len) {
-                        target_skb = skb_queue_prev(&priv->tx_queue, entry);
+                        target_skb = entry->prev;
                         hole_size -= len;
                         target_addr = last_addr;
                 }
                 largest_hole = max(largest_hole, hole_size);
                 last_addr = range->end_addr;
+                entry = entry->next;
         }
         if (!target_skb && priv->rx_end - last_addr >= len) {
-                target_skb = skb_peek_tail(&priv->tx_queue);
+                target_skb = priv->tx_queue.prev;
                 largest_hole = max(largest_hole, priv->rx_end - last_addr - len);
                 if (!skb_queue_empty(&priv->tx_queue)) {
                         info = IEEE80211_SKB_CB(target_skb);
@@ -2084,6 +2091,7 @@ out:
 static void p54_stop(struct ieee80211_hw *dev)
 {
         struct p54_common *priv = dev->priv;
+        struct sk_buff *skb;
 
         mutex_lock(&priv->conf_mutex);
         priv->mode = NL80211_IFTYPE_UNSPECIFIED;
@@ -2098,7 +2106,8 @@ static void p54_stop(struct ieee80211_hw *dev)
                 p54_tx_cancel(dev, priv->cached_beacon);
 
         priv->stop(dev);
-        skb_queue_purge(&priv->tx_queue);
+        while ((skb = skb_dequeue(&priv->tx_queue)))
+                kfree_skb(skb);
         priv->cached_beacon = NULL;
         priv->tsf_high32 = priv->tsf_low32 = 0;
         mutex_unlock(&priv->conf_mutex);
diff --git a/drivers/net/wireless/p54/p54spi.c b/drivers/net/wireless/p54/p54spi.c
index 83116baeb110..72c7dbd39d0a 100644
--- a/drivers/net/wireless/p54/p54spi.c
+++ b/drivers/net/wireless/p54/p54spi.c
@@ -635,7 +635,7 @@ static int __devinit p54spi_probe(struct spi_device *spi)
 
         hw = p54_init_common(sizeof(*priv));
         if (!hw) {
-                dev_err(&priv->spi->dev, "could not alloc ieee80211_hw");
+                dev_err(&spi->dev, "could not alloc ieee80211_hw");
                 return -ENOMEM;
         }
 
diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c
index b10b0383dfa5..698b11b1cadb 100644
--- a/drivers/net/wireless/ray_cs.c
+++ b/drivers/net/wireless/ray_cs.c
@@ -2427,11 +2427,10 @@ static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len)
 
 #ifdef PCMCIA_DEBUG
         if (pc_debug > 3) {
-                int i;
-                printk(KERN_DEBUG "skb->data before untranslate");
-                for (i = 0; i < 64; i++)
-                        printk("%02x ", skb->data[i]);
-                printk("\n" KERN_DEBUG
+                print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ",
+                               DUMP_PREFIX_NONE, 16, 1,
+                               skb->data, 64, true);
+                printk(KERN_DEBUG
                        "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n",
                        ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl,
                        psnap->org[0], psnap->org[1], psnap->org[2]);
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index 66daf68ff0ee..ce75426764a1 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -1550,7 +1550,9 @@ static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
         rt2500usb_register_read(rt2x00dev, MAC_CSR0, &reg);
         rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
 
-        if (!rt2x00_check_rev(&rt2x00dev->chip, 0x000ffff0, 0)) {
+        if (!rt2x00_check_rev(&rt2x00dev->chip, 0x000ffff0, 0) ||
+            rt2x00_check_rev(&rt2x00dev->chip, 0x0000000f, 0)) {
+
                 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
                 return -ENODEV;
         }
diff --git a/drivers/net/wireless/rtl818x/rtl8187_leds.c b/drivers/net/wireless/rtl818x/rtl8187_leds.c
index b44253592243..cf9f899fe0e6 100644
--- a/drivers/net/wireless/rtl818x/rtl8187_leds.c
+++ b/drivers/net/wireless/rtl818x/rtl8187_leds.c
@@ -208,11 +208,12 @@ void rtl8187_leds_exit(struct ieee80211_hw *dev)
 {
         struct rtl8187_priv *priv = dev->priv;
 
-        rtl8187_unregister_led(&priv->led_tx);
         /* turn the LED off before exiting */
         queue_delayed_work(dev->workqueue, &priv->led_off, 0);
         cancel_delayed_work_sync(&priv->led_off);
+        cancel_delayed_work_sync(&priv->led_on);
         rtl8187_unregister_led(&priv->led_rx);
+        rtl8187_unregister_led(&priv->led_tx);
 }
 #endif /* def CONFIG_RTL8187_LED */
 
diff --git a/drivers/net/wireless/wavelan_cs.c b/drivers/net/wireless/wavelan_cs.c
index 6af706408ac0..c6d300666ad8 100644
--- a/drivers/net/wireless/wavelan_cs.c
+++ b/drivers/net/wireless/wavelan_cs.c
@@ -3556,17 +3556,8 @@ wv_82593_config(struct net_device *	dev)
   cfblk.rcvstop = TRUE;         /* Enable Receive Stop Register */
 
 #ifdef DEBUG_I82593_SHOW
-  {
-    u_char *c = (u_char *) &cfblk;
-    int i;
-    printk(KERN_DEBUG "wavelan_cs: config block:");
-    for(i = 0; i < sizeof(struct i82593_conf_block); i++,c++)
-      {
-        if((i % 16) == 0) printk("\n" KERN_DEBUG);
-        printk("%02x ", *c);
-      }
-    printk("\n");
-  }
+  print_hex_dump(KERN_DEBUG, "wavelan_cs: config block: ", DUMP_PREFIX_NONE,
+                 16, 1, &cfblk, sizeof(struct i82593_conf_block), false);
 #endif
 
   /* Copy the config block to the i82593 */
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c
index 40b07b988224..3bd3c779fff3 100644
--- a/drivers/net/wireless/zd1211rw/zd_mac.c
+++ b/drivers/net/wireless/zd1211rw/zd_mac.c
@@ -698,7 +698,7 @@ int zd_mac_rx(struct ieee80211_hw *hw, const u8 *buffer, unsigned int length)
                         && !mac->pass_ctrl)
                 return 0;
 
-        fc = *(__le16 *)buffer;
+        fc = get_unaligned((__le16*)buffer);
         need_padding = ieee80211_is_data_qos(fc) ^ ieee80211_has_a4(fc);
 
         skb = dev_alloc_skb(length + (need_padding ? 2 : 0));
diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c
index 14a19baff214..0e6e44689cc6 100644
--- a/drivers/net/wireless/zd1211rw/zd_usb.c
+++ b/drivers/net/wireless/zd1211rw/zd_usb.c
@@ -38,7 +38,6 @@ static struct usb_device_id usb_ids[] = {
         /* ZD1211 */
         { USB_DEVICE(0x0ace, 0x1211), .driver_info = DEVICE_ZD1211 },
         { USB_DEVICE(0x0ace, 0xa211), .driver_info = DEVICE_ZD1211 },
-        { USB_DEVICE(0x07b8, 0x6001), .driver_info = DEVICE_ZD1211 },
         { USB_DEVICE(0x126f, 0xa006), .driver_info = DEVICE_ZD1211 },
         { USB_DEVICE(0x6891, 0xa727), .driver_info = DEVICE_ZD1211 },
         { USB_DEVICE(0x0df6, 0x9071), .driver_info = DEVICE_ZD1211 },
@@ -61,6 +60,7 @@ static struct usb_device_id usb_ids[] = {
         { USB_DEVICE(0x157e, 0x300a), .driver_info = DEVICE_ZD1211 },
         { USB_DEVICE(0x0105, 0x145f), .driver_info = DEVICE_ZD1211 },
         /* ZD1211B */
+        { USB_DEVICE(0x054c, 0x0257), .driver_info = DEVICE_ZD1211B },
         { USB_DEVICE(0x0ace, 0x1215), .driver_info = DEVICE_ZD1211B },
         { USB_DEVICE(0x0ace, 0xb215), .driver_info = DEVICE_ZD1211B },
         { USB_DEVICE(0x157e, 0x300d), .driver_info = DEVICE_ZD1211B },
@@ -87,6 +87,7 @@ static struct usb_device_id usb_ids[] = {
         { USB_DEVICE(0x0471, 0x1237), .driver_info = DEVICE_ZD1211B },
         { USB_DEVICE(0x07fa, 0x1196), .driver_info = DEVICE_ZD1211B },
         { USB_DEVICE(0x0df6, 0x0036), .driver_info = DEVICE_ZD1211B },
+        { USB_DEVICE(0x07b8, 0x6001), .driver_info = DEVICE_ZD1211B },
         /* "Driverless" devices that need ejecting */
         { USB_DEVICE(0x0ace, 0x2011), .driver_info = DEVICE_INSTALLER },
         { USB_DEVICE(0x0ace, 0x20ff), .driver_info = DEVICE_INSTALLER },
diff --git a/drivers/net/yellowfin.c b/drivers/net/yellowfin.c
index 3c7a5053f1da..a07580138e81 100644
--- a/drivers/net/yellowfin.c
+++ b/drivers/net/yellowfin.c
@@ -109,7 +109,7 @@ static int gx_fix;
 /* These identify the driver base version and may not be removed. */
 static const char version[] __devinitconst =
   KERN_INFO DRV_NAME ".c:v1.05  1/09/2001  Written by Donald Becker <becker@scyld.com>\n"
-  KERN_INFO "  (unofficial 2.4.x port, " DRV_VERSION ", " DRV_RELDATE ")\n";
+  "  (unofficial 2.4.x port, " DRV_VERSION ", " DRV_RELDATE ")\n";
 
 MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
 MODULE_DESCRIPTION("Packet Engines Yellowfin G-NIC Gigabit Ethernet driver");
@@ -700,12 +700,15 @@ static void yellowfin_tx_timeout(struct net_device *dev)
                 int i;
                 printk(KERN_WARNING "  Rx ring %p: ", yp->rx_ring);
                 for (i = 0; i < RX_RING_SIZE; i++)
-                        printk(" %8.8x", yp->rx_ring[i].result_status);
-                printk("\n"KERN_WARNING"  Tx ring %p: ", yp->tx_ring);
+                        printk(KERN_CONT " %8.8x",
+                               yp->rx_ring[i].result_status);
+                printk(KERN_CONT "\n");
+                printk(KERN_WARNING"  Tx ring %p: ", yp->tx_ring);
                 for (i = 0; i < TX_RING_SIZE; i++)
-                        printk(" %4.4x /%8.8x", yp->tx_status[i].tx_errs,
-                                   yp->tx_ring[i].result_status);
-                printk("\n");
+                        printk(KERN_CONT " %4.4x /%8.8x",
+                               yp->tx_status[i].tx_errs,
+                               yp->tx_ring[i].result_status);
+                printk(KERN_CONT "\n");
         }
 
         /* If the hardware is found to hang regularly, we will update the code
@@ -1216,20 +1219,20 @@ static int yellowfin_close(struct net_device *dev)
 
 #if defined(__i386__)
         if (yellowfin_debug > 2) {
-                printk("\n"KERN_DEBUG"  Tx ring at %8.8llx:\n",
+                printk(KERN_DEBUG"  Tx ring at %8.8llx:\n",
                                 (unsigned long long)yp->tx_ring_dma);
                 for (i = 0; i < TX_RING_SIZE*2; i++)
-                        printk(" %c #%d desc. %8.8x %8.8x %8.8x %8.8x.\n",
+                        printk(KERN_DEBUG " %c #%d desc. %8.8x %8.8x %8.8x %8.8x.\n",
                                    ioread32(ioaddr + TxPtr) == (long)&yp->tx_ring[i] ? '>' : ' ',
                                    i, yp->tx_ring[i].dbdma_cmd, yp->tx_ring[i].addr,
                                    yp->tx_ring[i].branch_addr, yp->tx_ring[i].result_status);
                 printk(KERN_DEBUG "  Tx status %p:\n", yp->tx_status);
                 for (i = 0; i < TX_RING_SIZE; i++)
-                        printk("   #%d status %4.4x %4.4x %4.4x %4.4x.\n",
+                        printk(KERN_DEBUG "   #%d status %4.4x %4.4x %4.4x %4.4x.\n",
                                    i, yp->tx_status[i].tx_cnt, yp->tx_status[i].tx_errs,
                                    yp->tx_status[i].total_tx_cnt, yp->tx_status[i].paused);
 
-                printk("\n"KERN_DEBUG "  Rx ring %8.8llx:\n",
+                printk(KERN_DEBUG "  Rx ring %8.8llx:\n",
                                 (unsigned long long)yp->rx_ring_dma);
                 for (i = 0; i < RX_RING_SIZE; i++) {
                         printk(KERN_DEBUG " %c #%d desc. %8.8x %8.8x %8.8x\n",
diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index aee967d7f760..bacaa536fd51 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -9,6 +9,10 @@
  * out of the OpenFirmware device tree and using it to populate an mii_bus.
  */
 
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/netdevice.h>
+#include <linux/err.h>
 #include <linux/phy.h>
 #include <linux/of.h>
 #include <linux/of_mdio.h>
@@ -137,3 +141,41 @@ struct phy_device *of_phy_connect(struct net_device *dev,
         return phy_connect_direct(dev, phy, hndlr, flags, iface) ? NULL : phy;
 }
 EXPORT_SYMBOL(of_phy_connect);
+
+/**
+ * of_phy_connect_fixed_link - Parse fixed-link property and return a dummy phy
+ * @dev: pointer to net_device claiming the phy
+ * @hndlr: Link state callback for the network device
+ * @iface: PHY data interface type
+ *
+ * This function is a temporary stop-gap and will be removed soon.  It is
+ * only to support the fs_enet, ucc_geth and gianfar Ethernet drivers.  Do
+ * not call this function from new drivers.
+ */
+struct phy_device *of_phy_connect_fixed_link(struct net_device *dev,
+                                             void (*hndlr)(struct net_device *),
+                                             phy_interface_t iface)
+{
+        struct device_node *net_np;
+        char bus_id[MII_BUS_ID_SIZE + 3];
+        struct phy_device *phy;
+        const u32 *phy_id;
+        int sz;
+
+        if (!dev->dev.parent)
+                return NULL;
+
+        net_np = dev_archdata_get_node(&dev->dev.parent->archdata);
+        if (!net_np)
+                return NULL;
+
+        phy_id = of_get_property(net_np, "fixed-link", &sz);
+        if (!phy_id || sz < sizeof(*phy_id))
+                return NULL;
+
+        sprintf(bus_id, PHY_ID_FMT, "0", phy_id[0]);
+
+        phy = phy_connect(dev, bus_id, hndlr, 0, iface);
+        return IS_ERR(phy) ? NULL : phy;
+}
+EXPORT_SYMBOL(of_phy_connect_fixed_link);
diff --git a/drivers/oprofile/oprofile_stats.c b/drivers/oprofile/oprofile_stats.c
index e1f6ce03705e..3c2270a8300c 100644
--- a/drivers/oprofile/oprofile_stats.c
+++ b/drivers/oprofile/oprofile_stats.c
@@ -33,6 +33,7 @@ void oprofile_reset_stats(void)
         atomic_set(&oprofile_stats.sample_lost_no_mm, 0);
         atomic_set(&oprofile_stats.sample_lost_no_mapping, 0);
         atomic_set(&oprofile_stats.event_lost_overflow, 0);
+        atomic_set(&oprofile_stats.bt_lost_no_mapping, 0);
 }
 
 
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 5d610cbcfe80..a45b0c0d574e 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -70,7 +70,6 @@
 #undef CCIO_COLLECT_STATS
 #endif
 
-#include <linux/proc_fs.h>
 #include <asm/runway.h>         /* for proc_runway_root */
 
 #ifdef DEBUG_CCIO_INIT
@@ -1134,7 +1133,7 @@ static const struct file_operations ccio_proc_bitmap_fops = {
         .llseek = seq_lseek,
         .release = single_release,
 };
-#endif
+#endif /* CONFIG_PROC_FS */
 
 /**
  * ccio_find_ioc - Find the ioc in the ioc_list
@@ -1568,14 +1567,15 @@ static int __init ccio_probe(struct parisc_device *dev)
         /* if this fails, no I/O cards will work, so may as well bug */
         BUG_ON(dev->dev.platform_data == NULL);
         HBA_DATA(dev->dev.platform_data)->iommu = ioc;
-        
+
+#ifdef CONFIG_PROC_FS
         if (ioc_count == 0) {
                 proc_create(MODULE_NAME, 0, proc_runway_root,
                             &ccio_proc_info_fops);
                 proc_create(MODULE_NAME"-bitmap", 0, proc_runway_root,
                             &ccio_proc_bitmap_fops);
         }
-
+#endif
         ioc_count++;
 
         parisc_has_iommu();
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 52ae0b1d470c..d69bde6a2343 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -353,7 +353,7 @@ static unsigned int dino_startup_irq(unsigned int irq)
         return 0;
 }
 
-static struct hw_interrupt_type dino_interrupt_type = {
+static struct irq_chip dino_interrupt_type = {
         .typename       = "GSC-PCI",
         .startup        = dino_startup_irq,
         .shutdown       = dino_disable_irq,
@@ -614,7 +614,7 @@ dino_fixup_bus(struct pci_bus *bus)
                             dev_name(&bus->self->dev), i,
                             bus->self->resource[i].start,
                             bus->self->resource[i].end);
-                        pci_assign_resource(bus->self, i);
+                        WARN_ON(pci_assign_resource(bus->self, i));
                         DBG("DEBUG %s after assign %d [0x%lx,0x%lx]\n",
                             dev_name(&bus->self->dev), i,
                             bus->self->resource[i].start,
@@ -1019,22 +1019,22 @@ static int __init dino_probe(struct parisc_device *dev)
         ** It's not used to avoid chicken/egg problems
         ** with configuration accessor functions.
         */
-        bus = pci_scan_bus_parented(&dev->dev, dino_current_bus,
-                                    &dino_cfg_ops, NULL);
+        dino_dev->hba.hba_bus = bus = pci_scan_bus_parented(&dev->dev,
+                         dino_current_bus, &dino_cfg_ops, NULL);
+
         if(bus) {
-                pci_bus_add_devices(bus);
                 /* This code *depends* on scanning being single threaded
                  * if it isn't, this global bus number count will fail
                  */
                 dino_current_bus = bus->subordinate + 1;
                 pci_bus_assign_resources(bus);
+                pci_bus_add_devices(bus);
         } else {
-                printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (probably duplicate bus number %d)\n",
+                printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n",
                        dev_name(&dev->dev), dino_current_bus);
                 /* increment the bus number in case of duplicates */
                 dino_current_bus++;
         }
-        dino_dev->hba.hba_bus = bus;
         return 0;
 }
 
diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c
index 5b89f404e668..51220749cb65 100644
--- a/drivers/parisc/eisa.c
+++ b/drivers/parisc/eisa.c
@@ -188,7 +188,7 @@ static unsigned int eisa_startup_irq(unsigned int irq)
         return 0;
 }
 
-static struct hw_interrupt_type eisa_interrupt_type = {
+static struct irq_chip eisa_interrupt_type = {
         .typename =     "EISA",
         .startup =      eisa_startup_irq,
         .shutdown =     eisa_disable_irq,
diff --git a/drivers/parisc/eisa_eeprom.c b/drivers/parisc/eisa_eeprom.c
index 685d94e69d44..8c0b26e9b98a 100644
--- a/drivers/parisc/eisa_eeprom.c
+++ b/drivers/parisc/eisa_eeprom.c
@@ -55,7 +55,7 @@ static ssize_t eisa_eeprom_read(struct file * file,
         ssize_t ret;
         int i;
         
-        if (*ppos >= HPEE_MAX_LENGTH)
+        if (*ppos < 0 || *ppos >= HPEE_MAX_LENGTH)
                 return 0;
         
         count = *ppos + count < HPEE_MAX_LENGTH ? count : HPEE_MAX_LENGTH - *ppos;
diff --git a/drivers/parisc/eisa_enumerator.c b/drivers/parisc/eisa_enumerator.c
index c709ecc2b7f7..0be1d50645ab 100644
--- a/drivers/parisc/eisa_enumerator.c
+++ b/drivers/parisc/eisa_enumerator.c
@@ -101,7 +101,7 @@ static int configure_memory(const unsigned char *buf,
                         printk("memory %lx-%lx ", (unsigned long)res->start, (unsigned long)res->end);
                         result = request_resource(mem_parent, res);
                         if (result < 0) {
-                                printk("\n" KERN_ERR "EISA Enumerator: failed to claim EISA Bus address space!\n");
+                                printk(KERN_ERR "EISA Enumerator: failed to claim EISA Bus address space!\n");
                                 return result;
                         }
                 }
@@ -191,7 +191,7 @@ static int configure_port(const unsigned char *buf, struct resource *io_parent,
                         printk("ioports %lx-%lx ", (unsigned long)res->start, (unsigned long)res->end);
                         result = request_resource(io_parent, res);
                         if (result < 0) {
-                                printk("\n" KERN_ERR "EISA Enumerator: failed to claim EISA Bus address space!\n");
+                                printk(KERN_ERR "EISA Enumerator: failed to claim EISA Bus address space!\n");
                                 return result;
                         }
                 }
@@ -224,7 +224,7 @@ static int configure_port_init(const unsigned char *buf)
                  case HPEE_PORT_INIT_WIDTH_BYTE:
                         s=1;
                         if (c & HPEE_PORT_INIT_MASK) {
-                                printk("\n" KERN_WARNING "port_init: unverified mask attribute\n");
+                                printk(KERN_WARNING "port_init: unverified mask attribute\n");
                                 outb((inb(get_16(buf+len+1) & 
                                           get_8(buf+len+3)) | 
                                       get_8(buf+len+4)), get_16(buf+len+1));
@@ -249,7 +249,7 @@ static int configure_port_init(const unsigned char *buf)
                  case HPEE_PORT_INIT_WIDTH_DWORD:
                         s=4;
                         if (c & HPEE_PORT_INIT_MASK) {
-                                printk("\n" KERN_WARNING "port_init: unverified mask attribute\n");
+                                printk(KERN_WARNING "port_init: unverified mask attribute\n");
                                 outl((inl(get_16(buf+len+1) &
                                           get_32(buf+len+3)) |
                                       get_32(buf+len+7)), get_16(buf+len+1));
@@ -259,7 +259,7 @@ static int configure_port_init(const unsigned char *buf)
 
                         break;
                  default:
-                        printk("\n" KERN_ERR "Invalid port init word %02x\n", c);
+                        printk(KERN_ERR "Invalid port init word %02x\n", c);
                         return 0;
                 }
                 
@@ -297,7 +297,7 @@ static int configure_type_string(const unsigned char *buf)
         /* just skip past the type field */
         len = get_8(buf);
         if (len > 80) {
-                printk("\n" KERN_ERR "eisa_enumerator: type info field too long (%d, max is 80)\n", len);
+                printk(KERN_ERR "eisa_enumerator: type info field too long (%d, max is 80)\n", len);
         }
         
         return 1+len;
@@ -398,7 +398,7 @@ static int parse_slot_config(int slot,
                 }
                 
                 if (p0 + function_len < pos) {
-                        printk("\n" KERN_ERR "eisa_enumerator: function %d length mis-match "
+                        printk(KERN_ERR "eisa_enumerator: function %d length mis-match "
                                "got %d, expected %d\n",
                                num_func, pos-p0, function_len);
                         res=-1;
diff --git a/drivers/parisc/gsc.c b/drivers/parisc/gsc.c
index d33632917696..647adc9f85ad 100644
--- a/drivers/parisc/gsc.c
+++ b/drivers/parisc/gsc.c
@@ -148,7 +148,7 @@ static unsigned int gsc_asic_startup_irq(unsigned int irq)
         return 0;
 }
 
-static struct hw_interrupt_type gsc_asic_interrupt_type = {
+static struct irq_chip gsc_asic_interrupt_type = {
         .typename =     "GSC-ASIC",
         .startup =      gsc_asic_startup_irq,
         .shutdown =     gsc_asic_disable_irq,
@@ -158,7 +158,7 @@ static struct hw_interrupt_type gsc_asic_interrupt_type = {
         .end =          no_end_irq,
 };
 
-int gsc_assign_irq(struct hw_interrupt_type *type, void *data)
+int gsc_assign_irq(struct irq_chip *type, void *data)
 {
         static int irq = GSC_IRQ_BASE;
         struct irq_desc *desc;
diff --git a/drivers/parisc/gsc.h b/drivers/parisc/gsc.h
index 762a1babad60..b9d7bfb68e24 100644
--- a/drivers/parisc/gsc.h
+++ b/drivers/parisc/gsc.h
@@ -38,7 +38,7 @@ struct gsc_asic {
 int gsc_common_setup(struct parisc_device *parent, struct gsc_asic *gsc_asic);
 int gsc_alloc_irq(struct gsc_irq *dev);                 /* dev needs an irq */
 int gsc_claim_irq(struct gsc_irq *dev, int irq);        /* dev needs this irq */
-int gsc_assign_irq(struct hw_interrupt_type *type, void *data);
+int gsc_assign_irq(struct irq_chip *type, void *data);
 int gsc_find_local_irq(unsigned int irq, int *global_irq, int limit);
 void gsc_fixup_irqs(struct parisc_device *parent, void *ctrl,
                 void (*choose)(struct parisc_device *child, void *ctrl));
diff --git a/drivers/parisc/hppb.c b/drivers/parisc/hppb.c
index 13856415b432..815db175d427 100644
--- a/drivers/parisc/hppb.c
+++ b/drivers/parisc/hppb.c
@@ -62,7 +62,8 @@ static int hppb_probe(struct parisc_device *dev)
                 }
                 card = card->next;
         }
-        printk(KERN_INFO "Found GeckoBoa at 0x%x\n", dev->hpa.start);
+        printk(KERN_INFO "Found GeckoBoa at 0x%llx\n",
+                        (unsigned long long) dev->hpa.start);
 
         card->hpa = dev->hpa.start;
         card->mmio_region.name = "HP-PB Bus";
@@ -73,8 +74,10 @@ static int hppb_probe(struct parisc_device *dev)
 
         status = ccio_request_resource(dev, &card->mmio_region);
         if(status < 0) {
-                printk(KERN_ERR "%s: failed to claim HP-PB bus space (%08x, %08x)\n",
-                        __FILE__, card->mmio_region.start, card->mmio_region.end);
+                printk(KERN_ERR "%s: failed to claim HP-PB "
+                        "bus space (0x%08llx, 0x%08llx)\n",
+                        __FILE__, (unsigned long long) card->mmio_region.start,
+                        (unsigned long long) card->mmio_region.end);
         }
 
         return 0;
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index 4a9cc92d4d18..88e333553212 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -729,7 +729,7 @@ static int iosapic_set_affinity_irq(unsigned int irq,
 }
 #endif
 
-static struct hw_interrupt_type iosapic_interrupt_type = {
+static struct irq_chip iosapic_interrupt_type = {
         .typename =     "IO-SAPIC-level",
         .startup =      iosapic_startup_irq,
         .shutdown =     iosapic_disable_irq,
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 59fbbf128365..3aeb3279c92a 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -980,28 +980,38 @@ static void
 lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 {
         unsigned long bytecnt;
-        pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;     /* PA_VIEW */
-        pdc_pat_cell_mod_maddr_block_t io_pdc_cell;     /* IO_VIEW */
         long io_count;
         long status;    /* PDC return status */
         long pa_count;
+        pdc_pat_cell_mod_maddr_block_t *pa_pdc_cell;    /* PA_VIEW */
+        pdc_pat_cell_mod_maddr_block_t *io_pdc_cell;    /* IO_VIEW */
         int i;
 
+        pa_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t), GFP_KERNEL);
+        if (!pa_pdc_cell)
+                return;
+
+        io_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t), GFP_KERNEL);
+        if (!io_pdc_cell) {
+                kfree(pa_pdc_cell);
+                return;
+        }
+
         /* return cell module (IO view) */
         status = pdc_pat_cell_module(&bytecnt, pa_dev->pcell_loc, pa_dev->mod_index,
-                                PA_VIEW, & pa_pdc_cell);
-        pa_count = pa_pdc_cell.mod[1];
+                                PA_VIEW, pa_pdc_cell);
+        pa_count = pa_pdc_cell->mod[1];
 
         status |= pdc_pat_cell_module(&bytecnt, pa_dev->pcell_loc, pa_dev->mod_index,
-                                IO_VIEW, &io_pdc_cell);
-        io_count = io_pdc_cell.mod[1];
+                                IO_VIEW, io_pdc_cell);
+        io_count = io_pdc_cell->mod[1];
 
         /* We've already done this once for device discovery...*/
         if (status != PDC_OK) {
                 panic("pdc_pat_cell_module() call failed for LBA!\n");
         }
 
-        if (PAT_GET_ENTITY(pa_pdc_cell.mod_info) != PAT_ENTITY_LBA) {
+        if (PAT_GET_ENTITY(pa_pdc_cell->mod_info) != PAT_ENTITY_LBA) {
                 panic("pdc_pat_cell_module() entity returned != PAT_ENTITY_LBA!\n");
         }
 
@@ -1016,8 +1026,8 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
                 } *p, *io;
                 struct resource *r;
 
-                p = (void *) &(pa_pdc_cell.mod[2+i*3]);
-                io = (void *) &(io_pdc_cell.mod[2+i*3]);
+                p = (void *) &(pa_pdc_cell->mod[2+i*3]);
+                io = (void *) &(io_pdc_cell->mod[2+i*3]);
 
                 /* Convert the PAT range data to PCI "struct resource" */
                 switch(p->type & 0xff) {
@@ -1096,6 +1106,9 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
                         break;
                 }
         }
+
+        kfree(pa_pdc_cell);
+        kfree(io_pdc_cell);
 }
 #else
 /* keep compiler from complaining about missing declarations */
@@ -1509,10 +1522,6 @@ lba_driver_probe(struct parisc_device *dev)
         lba_bus = lba_dev->hba.hba_bus =
                 pci_scan_bus_parented(&dev->dev, lba_dev->hba.bus_num.start,
                                 cfg_ops, NULL);
-        if (lba_bus) {
-                lba_next_bus = lba_bus->subordinate + 1;
-                pci_bus_add_devices(lba_bus);
-        }
 
         /* This is in lieu of calling pci_assign_unassigned_resources() */
         if (is_pdc_pat()) {
@@ -1533,7 +1542,6 @@ lba_driver_probe(struct parisc_device *dev)
         }
         pci_enable_bridges(lba_bus);
 
-
         /*
         ** Once PCI register ops has walked the bus, access to config
         ** space is restricted. Avoids master aborts on config cycles.
@@ -1543,6 +1551,11 @@ lba_driver_probe(struct parisc_device *dev)
                 lba_dev->flags |= LBA_FLAG_SKIP_PROBE;
         }
 
+        if (lba_bus) {
+                lba_next_bus = lba_bus->subordinate + 1;
+                pci_bus_add_devices(lba_bus);
+        }
+
         /* Whew! Finally done! Tell services we got this one covered. */
         return 0;
 }
diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index f9f9a5f1bbd0..13a64bc081b6 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -370,7 +370,7 @@ pdcspath_layer_read(struct pdcspath_entry *entry, char *buf)
         if (!i) /* entry is not ready */
                 return -ENODATA;
         
-        for (i = 0; devpath->layers[i] && (likely(i < 6)); i++)
+        for (i = 0; i < 6 && devpath->layers[i]; i++)
                 out += sprintf(out, "%u ", devpath->layers[i]);
 
         out += sprintf(out, "\n");
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index d46dd57450ac..123d8fe3427d 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -2057,6 +2057,7 @@ void sba_directed_lmmio(struct parisc_device *pci_hba, struct resource *r)
                 r->start = (base & ~1UL) | PCI_F_EXTEND;
                 size = ~ READ_REG32(reg + LMMIO_DIRECT0_MASK);
                 r->end = r->start + size;
+                r->flags = IORESOURCE_MEM;
         }
 }
 
@@ -2093,4 +2094,5 @@ void sba_distributed_lmmio(struct parisc_device *pci_hba, struct resource *r )
         size = (~READ_REG32(sba->sba_hpa + LMMIO_DIST_MASK)) / ROPES_PER_IOC;
         r->start += rope * (size + 1);  /* adjust base for this rope */
         r->end = r->start + size;
+        r->flags = IORESOURCE_MEM;
 }
diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index 33e5ade774ca..675f04e6597a 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -325,7 +325,7 @@ static unsigned int superio_startup_irq(unsigned int irq)
         return 0;
 }
 
-static struct hw_interrupt_type superio_interrupt_type = {
+static struct irq_chip superio_interrupt_type = {
         .typename =     SUPERIO,
         .startup =      superio_startup_irq,
         .shutdown =     superio_disable_irq,
@@ -434,8 +434,8 @@ static void __init superio_parport_init(void)
                         0 /*base_hi*/,
                         PAR_IRQ, 
                         PARPORT_DMA_NONE /* dma */,
-                        NULL /*struct pci_dev* */),
-                        0 /* shared irq flags */ )
+                        NULL /*struct pci_dev* */,
+                        0 /* shared irq flags */))
 
                 printk(KERN_WARNING PFX "Probing parallel port failed.\n");
 #endif  /* CONFIG_PARPORT_PC */
diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c
index 1032d5fdbd42..2597145a066e 100644
--- a/drivers/parport/parport_pc.c
+++ b/drivers/parport/parport_pc.c
@@ -2907,6 +2907,7 @@ enum parport_pc_pci_cards {
         netmos_9755,
         netmos_9805,
         netmos_9815,
+        netmos_9901,
         quatech_sppxp100,
 };
 
@@ -2987,7 +2988,7 @@ static struct parport_pc_pci {
         /* netmos_9755 */               { 2, { { 0, 1 }, { 2, 3 },} },
         /* netmos_9805 */               { 1, { { 0, -1 }, } },
         /* netmos_9815 */               { 2, { { 0, -1 }, { 2, -1 }, } },
-
+        /* netmos_9901 */               { 1, { { 0, -1 }, } },
         /* quatech_sppxp100 */          { 1, { { 0, 1 }, } },
 };
 
@@ -3089,6 +3090,8 @@ static const struct pci_device_id parport_pc_pci_tbl[] = {
           PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9805 },
         { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9815,
           PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9815 },
+        { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9901,
+          0xA000, 0x2000, 0, 0, netmos_9901 },
         /* Quatech SPPXP-100 Parallel port PCI ExpressCard */
         { PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_SPPXP_100,
           PCI_ANY_ID, PCI_ANY_ID, 0, 0, quatech_sppxp100 },
diff --git a/drivers/pci/hotplug/cpci_hotplug_core.c b/drivers/pci/hotplug/cpci_hotplug_core.c
index a5b9f6ae507b..d703e73fffa7 100644
--- a/drivers/pci/hotplug/cpci_hotplug_core.c
+++ b/drivers/pci/hotplug/cpci_hotplug_core.c
@@ -32,7 +32,6 @@
 #include <linux/pci_hotplug.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
-#include <linux/smp_lock.h>
 #include <asm/atomic.h>
 #include <linux/delay.h>
 #include <linux/kthread.h>
diff --git a/drivers/pci/hotplug/cpqphp_ctrl.c b/drivers/pci/hotplug/cpqphp_ctrl.c
index 2fa47af992a8..0ff689afa757 100644
--- a/drivers/pci/hotplug/cpqphp_ctrl.c
+++ b/drivers/pci/hotplug/cpqphp_ctrl.c
@@ -34,7 +34,6 @@
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 #include <linux/wait.h>
-#include <linux/smp_lock.h>
 #include <linux/pci.h>
 #include <linux/pci_hotplug.h>
 #include <linux/kthread.h>
diff --git a/drivers/pci/hotplug/cpqphp_sysfs.c b/drivers/pci/hotplug/cpqphp_sysfs.c
index 8450f4a6568a..e6089bdb6e5b 100644
--- a/drivers/pci/hotplug/cpqphp_sysfs.c
+++ b/drivers/pci/hotplug/cpqphp_sysfs.c
@@ -33,6 +33,7 @@
 #include <linux/workqueue.h>
 #include <linux/pci.h>
 #include <linux/pci_hotplug.h>
+#include <linux/smp_lock.h>
 #include <linux/debugfs.h>
 #include "cpqphp.h"
 
diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c
index 844580489d4d..5c5043f239cf 100644
--- a/drivers/pci/hotplug/pci_hotplug_core.c
+++ b/drivers/pci/hotplug/pci_hotplug_core.c
@@ -555,6 +555,8 @@ static struct hotplug_slot *get_slot_from_name (const char *name)
  * @slot: pointer to the &struct hotplug_slot to register
  * @devnr: device number
  * @name: name registered with kobject core
+ * @owner: caller module owner
+ * @mod_name: caller module name
  *
  * Registers a hotplug slot with the pci hotplug subsystem, which will allow
  * userspace interaction to the slot.
diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c
index ff4034502d24..8aab8edf123e 100644
--- a/drivers/pci/hotplug/pciehp_ctrl.c
+++ b/drivers/pci/hotplug/pciehp_ctrl.c
@@ -30,7 +30,6 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
-#include <linux/smp_lock.h>
 #include <linux/pci.h>
 #include <linux/workqueue.h>
 #include "../pci.h"
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index e53eacd75c8d..2314ad7ee5fe 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -39,7 +39,6 @@
 #include <linux/sysdev.h>
 #include <asm/cacheflush.h>
 #include <asm/iommu.h>
-#include <asm/e820.h>
 #include "pci.h"
 
 #define ROOT_SIZE               VTD_PAGE_SIZE
@@ -57,14 +56,32 @@
 #define MAX_AGAW_WIDTH 64
 
 #define DOMAIN_MAX_ADDR(gaw) ((((u64)1) << gaw) - 1)
+#define DOMAIN_MAX_PFN(gaw)  ((((u64)1) << (gaw-VTD_PAGE_SHIFT)) - 1)
 
 #define IOVA_PFN(addr)          ((addr) >> PAGE_SHIFT)
 #define DMA_32BIT_PFN           IOVA_PFN(DMA_BIT_MASK(32))
 #define DMA_64BIT_PFN           IOVA_PFN(DMA_BIT_MASK(64))
 
-#ifndef PHYSICAL_PAGE_MASK
-#define PHYSICAL_PAGE_MASK PAGE_MASK
-#endif
+
+/* VT-d pages must always be _smaller_ than MM pages. Otherwise things
+   are never going to work. */
+static inline unsigned long dma_to_mm_pfn(unsigned long dma_pfn)
+{
+        return dma_pfn >> (PAGE_SHIFT - VTD_PAGE_SHIFT);
+}
+
+static inline unsigned long mm_to_dma_pfn(unsigned long mm_pfn)
+{
+        return mm_pfn << (PAGE_SHIFT - VTD_PAGE_SHIFT);
+}
+static inline unsigned long page_to_dma_pfn(struct page *pg)
+{
+        return mm_to_dma_pfn(page_to_pfn(pg));
+}
+static inline unsigned long virt_to_dma_pfn(void *p)
+{
+        return page_to_dma_pfn(virt_to_page(p));
+}
 
 /* global iommu list, set NULL for ignored DMAR units */
 static struct intel_iommu **g_iommus;
@@ -205,12 +222,17 @@ static inline void dma_set_pte_prot(struct dma_pte *pte, unsigned long prot)
 
 static inline u64 dma_pte_addr(struct dma_pte *pte)
 {
-        return (pte->val & VTD_PAGE_MASK);
+#ifdef CONFIG_64BIT
+        return pte->val & VTD_PAGE_MASK;
+#else
+        /* Must have a full atomic 64-bit read */
+        return  __cmpxchg64(pte, 0ULL, 0ULL) & VTD_PAGE_MASK;
+#endif
 }
 
-static inline void dma_set_pte_addr(struct dma_pte *pte, u64 addr)
+static inline void dma_set_pte_pfn(struct dma_pte *pte, unsigned long pfn)
 {
-        pte->val |= (addr & VTD_PAGE_MASK);
+        pte->val |= (uint64_t)pfn << VTD_PAGE_SHIFT;
 }
 
 static inline bool dma_pte_present(struct dma_pte *pte)
@@ -218,6 +240,11 @@ static inline bool dma_pte_present(struct dma_pte *pte)
         return (pte->val & 3) != 0;
 }
 
+static inline int first_pte_in_page(struct dma_pte *pte)
+{
+        return !((unsigned long)pte & ~VTD_PAGE_MASK);
+}
+
 /*
  * This domain is a statically identity mapping domain.
  *      1. This domain creats a static 1:1 mapping to all usable memory.
@@ -245,7 +272,6 @@ struct dmar_domain {
         struct iova_domain iovad;       /* iova's that belong to this domain */
 
         struct dma_pte  *pgd;           /* virtual address */
-        spinlock_t      mapping_lock;   /* page table lock */
         int             gaw;            /* max guest address width */
 
         /* adjusted guest address width, 0 is level 2 30-bit */
@@ -649,80 +675,78 @@ static inline int width_to_agaw(int width)
 
 static inline unsigned int level_to_offset_bits(int level)
 {
-        return (12 + (level - 1) * LEVEL_STRIDE);
+        return (level - 1) * LEVEL_STRIDE;
 }
 
-static inline int address_level_offset(u64 addr, int level)
+static inline int pfn_level_offset(unsigned long pfn, int level)
 {
-        return ((addr >> level_to_offset_bits(level)) & LEVEL_MASK);
+        return (pfn >> level_to_offset_bits(level)) & LEVEL_MASK;
 }
 
-static inline u64 level_mask(int level)
+static inline unsigned long level_mask(int level)
 {
-        return ((u64)-1 << level_to_offset_bits(level));
+        return -1UL << level_to_offset_bits(level);
 }
 
-static inline u64 level_size(int level)
+static inline unsigned long level_size(int level)
 {
-        return ((u64)1 << level_to_offset_bits(level));
+        return 1UL << level_to_offset_bits(level);
 }
 
-static inline u64 align_to_level(u64 addr, int level)
+static inline unsigned long align_to_level(unsigned long pfn, int level)
 {
-        return ((addr + level_size(level) - 1) & level_mask(level));
+        return (pfn + level_size(level) - 1) & level_mask(level);
 }
 
-static struct dma_pte * addr_to_dma_pte(struct dmar_domain *domain, u64 addr)
+static struct dma_pte *pfn_to_dma_pte(struct dmar_domain *domain,
+                                      unsigned long pfn)
 {
-        int addr_width = agaw_to_width(domain->agaw);
+        int addr_width = agaw_to_width(domain->agaw) - VTD_PAGE_SHIFT;
         struct dma_pte *parent, *pte = NULL;
         int level = agaw_to_level(domain->agaw);
         int offset;
-        unsigned long flags;
 
         BUG_ON(!domain->pgd);
-
-        addr &= (((u64)1) << addr_width) - 1;
+        BUG_ON(addr_width < BITS_PER_LONG && pfn >> addr_width);
         parent = domain->pgd;
 
-        spin_lock_irqsave(&domain->mapping_lock, flags);
         while (level > 0) {
                 void *tmp_page;
 
-                offset = address_level_offset(addr, level);
+                offset = pfn_level_offset(pfn, level);
                 pte = &parent[offset];
                 if (level == 1)
                         break;
 
                 if (!dma_pte_present(pte)) {
+                        uint64_t pteval;
+
                         tmp_page = alloc_pgtable_page();
 
-                        if (!tmp_page) {
-                                spin_unlock_irqrestore(&domain->mapping_lock,
-                                        flags);
+                        if (!tmp_page)
                                 return NULL;
+
+                        domain_flush_cache(domain, tmp_page, VTD_PAGE_SIZE);
+                        pteval = (virt_to_dma_pfn(tmp_page) << VTD_PAGE_SHIFT) | DMA_PTE_READ | DMA_PTE_WRITE;
+                        if (cmpxchg64(&pte->val, 0ULL, pteval)) {
+                                /* Someone else set it while we were thinking; use theirs. */
+                                free_pgtable_page(tmp_page);
+                        } else {
+                                dma_pte_addr(pte);
+                                domain_flush_cache(domain, pte, sizeof(*pte));
                         }
-                        domain_flush_cache(domain, tmp_page, PAGE_SIZE);
-                        dma_set_pte_addr(pte, virt_to_phys(tmp_page));
-                        /*
-                         * high level table always sets r/w, last level page
-                         * table control read/write
-                         */
-                        dma_set_pte_readable(pte);
-                        dma_set_pte_writable(pte);
-                        domain_flush_cache(domain, pte, sizeof(*pte));
                 }
                 parent = phys_to_virt(dma_pte_addr(pte));
                 level--;
         }
 
-        spin_unlock_irqrestore(&domain->mapping_lock, flags);
         return pte;
 }
 
 /* return address's pte at specific level */
-static struct dma_pte *dma_addr_level_pte(struct dmar_domain *domain, u64 addr,
-                int level)
+static struct dma_pte *dma_pfn_level_pte(struct dmar_domain *domain,
+                                         unsigned long pfn,
+                                         int level)
 {
         struct dma_pte *parent, *pte = NULL;
         int total = agaw_to_level(domain->agaw);
@@ -730,7 +754,7 @@ static struct dma_pte *dma_addr_level_pte(struct dmar_domain *domain, u64 addr,
 
         parent = domain->pgd;
         while (level <= total) {
-                offset = address_level_offset(addr, total);
+                offset = pfn_level_offset(pfn, total);
                 pte = &parent[offset];
                 if (level == total)
                         return pte;
@@ -743,74 +767,82 @@ static struct dma_pte *dma_addr_level_pte(struct dmar_domain *domain, u64 addr,
         return NULL;
 }
 
-/* clear one page's page table */
-static void dma_pte_clear_one(struct dmar_domain *domain, u64 addr)
-{
-        struct dma_pte *pte = NULL;
-
-        /* get last level pte */
-        pte = dma_addr_level_pte(domain, addr, 1);
-
-        if (pte) {
-                dma_clear_pte(pte);
-                domain_flush_cache(domain, pte, sizeof(*pte));
-        }
-}
-
 /* clear last level pte, a tlb flush should be followed */
-static void dma_pte_clear_range(struct dmar_domain *domain, u64 start, u64 end)
+static void dma_pte_clear_range(struct dmar_domain *domain,
+                                unsigned long start_pfn,
+                                unsigned long last_pfn)
 {
-        int addr_width = agaw_to_width(domain->agaw);
-        int npages;
+        int addr_width = agaw_to_width(domain->agaw) - VTD_PAGE_SHIFT;
+        struct dma_pte *first_pte, *pte;
 
-        start &= (((u64)1) << addr_width) - 1;
-        end &= (((u64)1) << addr_width) - 1;
-        /* in case it's partial page */
-        start &= PAGE_MASK;
-        end = PAGE_ALIGN(end);
-        npages = (end - start) / VTD_PAGE_SIZE;
+        BUG_ON(addr_width < BITS_PER_LONG && start_pfn >> addr_width);
+        BUG_ON(addr_width < BITS_PER_LONG && last_pfn >> addr_width);
 
-        /* we don't need lock here, nobody else touches the iova range */
-        while (npages--) {
-                dma_pte_clear_one(domain, start);
-                start += VTD_PAGE_SIZE;
+        /* we don't need lock here; nobody else touches the iova range */
+        while (start_pfn <= last_pfn) {
+                first_pte = pte = dma_pfn_level_pte(domain, start_pfn, 1);
+                if (!pte) {
+                        start_pfn = align_to_level(start_pfn + 1, 2);
+                        continue;
+                }
+                do { 
+                        dma_clear_pte(pte);
+                        start_pfn++;
+                        pte++;
+                } while (start_pfn <= last_pfn && !first_pte_in_page(pte));
+
+                domain_flush_cache(domain, first_pte,
+                                   (void *)pte - (void *)first_pte);
         }
 }
 
 /* free page table pages. last level pte should already be cleared */
 static void dma_pte_free_pagetable(struct dmar_domain *domain,
-        u64 start, u64 end)
+                                   unsigned long start_pfn,
+                                   unsigned long last_pfn)
 {
-        int addr_width = agaw_to_width(domain->agaw);
-        struct dma_pte *pte;
+        int addr_width = agaw_to_width(domain->agaw) - VTD_PAGE_SHIFT;
+        struct dma_pte *first_pte, *pte;
         int total = agaw_to_level(domain->agaw);
         int level;
-        u64 tmp;
+        unsigned long tmp;
 
-        start &= (((u64)1) << addr_width) - 1;
-        end &= (((u64)1) << addr_width) - 1;
+        BUG_ON(addr_width < BITS_PER_LONG && start_pfn >> addr_width);
+        BUG_ON(addr_width < BITS_PER_LONG && last_pfn >> addr_width);
 
-        /* we don't need lock here, nobody else touches the iova range */
+        /* We don't need lock here; nobody else touches the iova range */
         level = 2;
         while (level <= total) {
-                tmp = align_to_level(start, level);
-                if (tmp >= end || (tmp + level_size(level) > end))
+                tmp = align_to_level(start_pfn, level);
+
+                /* If we can't even clear one PTE at this level, we're done */
+                if (tmp + level_size(level) - 1 > last_pfn)
                         return;
 
-                while (tmp < end) {
-                        pte = dma_addr_level_pte(domain, tmp, level);
-                        if (pte) {
-                                free_pgtable_page(
-                                        phys_to_virt(dma_pte_addr(pte)));
-                                dma_clear_pte(pte);
-                                domain_flush_cache(domain, pte, sizeof(*pte));
+                while (tmp + level_size(level) - 1 <= last_pfn) {
+                        first_pte = pte = dma_pfn_level_pte(domain, tmp, level);
+                        if (!pte) {
+                                tmp = align_to_level(tmp + 1, level + 1);
+                                continue;
                         }
-                        tmp += level_size(level);
+                        do {
+                                if (dma_pte_present(pte)) {
+                                        free_pgtable_page(phys_to_virt(dma_pte_addr(pte)));
+                                        dma_clear_pte(pte);
+                                }
+                                pte++;
+                                tmp += level_size(level);
+                        } while (!first_pte_in_page(pte) &&
+                                 tmp + level_size(level) - 1 <= last_pfn);
+
+                        domain_flush_cache(domain, first_pte,
+                                           (void *)pte - (void *)first_pte);
+                        
                 }
                 level++;
         }
         /* free pgd */
-        if (start == 0 && end >= ((((u64)1) << addr_width) - 1)) {
+        if (start_pfn == 0 && last_pfn == DOMAIN_MAX_PFN(domain->gaw)) {
                 free_pgtable_page(domain->pgd);
                 domain->pgd = NULL;
         }
@@ -1036,11 +1068,11 @@ static void iommu_flush_dev_iotlb(struct dmar_domain *domain,
 }
 
 static void iommu_flush_iotlb_psi(struct intel_iommu *iommu, u16 did,
-                                  u64 addr, unsigned int pages)
+                                  unsigned long pfn, unsigned int pages)
 {
         unsigned int mask = ilog2(__roundup_pow_of_two(pages));
+        uint64_t addr = (uint64_t)pfn << VTD_PAGE_SHIFT;
 
-        BUG_ON(addr & (~VTD_PAGE_MASK));
         BUG_ON(pages == 0);
 
         /*
@@ -1055,7 +1087,12 @@ static void iommu_flush_iotlb_psi(struct intel_iommu *iommu, u16 did,
         else
                 iommu->flush.flush_iotlb(iommu, did, addr, mask,
                                                 DMA_TLB_PSI_FLUSH);
-        if (did)
+
+        /*
+         * In caching mode, domain ID 0 is reserved for non-present to present
+         * mapping flush. Device IOTLB doesn't need to be flushed in this case.
+         */
+        if (!cap_caching_mode(iommu->cap) || did)
                 iommu_flush_dev_iotlb(iommu->domains[did], addr, mask);
 }
 
@@ -1280,7 +1317,6 @@ static void dmar_init_reserved_ranges(void)
         struct pci_dev *pdev = NULL;
         struct iova *iova;
         int i;
-        u64 addr, size;
 
         init_iova_domain(&reserved_iova_list, DMA_32BIT_PFN);
 
@@ -1303,12 +1339,9 @@ static void dmar_init_reserved_ranges(void)
                         r = &pdev->resource[i];
                         if (!r->flags || !(r->flags & IORESOURCE_MEM))
                                 continue;
-                        addr = r->start;
-                        addr &= PHYSICAL_PAGE_MASK;
-                        size = r->end - addr;
-                        size = PAGE_ALIGN(size);
-                        iova = reserve_iova(&reserved_iova_list, IOVA_PFN(addr),
-                                IOVA_PFN(size + addr) - 1);
+                        iova = reserve_iova(&reserved_iova_list,
+                                            IOVA_PFN(r->start),
+                                            IOVA_PFN(r->end));
                         if (!iova)
                                 printk(KERN_ERR "Reserve iova failed\n");
                 }
@@ -1342,7 +1375,6 @@ static int domain_init(struct dmar_domain *domain, int guest_width)
         unsigned long sagaw;
 
         init_iova_domain(&domain->iovad, DMA_32BIT_PFN);
-        spin_lock_init(&domain->mapping_lock);
         spin_lock_init(&domain->iommu_lock);
 
         domain_reserve_special_ranges(domain);
@@ -1389,7 +1421,6 @@ static void domain_exit(struct dmar_domain *domain)
 {
         struct dmar_drhd_unit *drhd;
         struct intel_iommu *iommu;
-        u64 end;
 
         /* Domain 0 is reserved, so dont process it */
         if (!domain)
@@ -1398,14 +1429,12 @@ static void domain_exit(struct dmar_domain *domain)
         domain_remove_dev_info(domain);
         /* destroy iovas */
         put_iova_domain(&domain->iovad);
-        end = DOMAIN_MAX_ADDR(domain->gaw);
-        end = end & (~PAGE_MASK);
 
         /* clear ptes */
-        dma_pte_clear_range(domain, 0, end);
+        dma_pte_clear_range(domain, 0, DOMAIN_MAX_PFN(domain->gaw));
 
         /* free page tables */
-        dma_pte_free_pagetable(domain, 0, end);
+        dma_pte_free_pagetable(domain, 0, DOMAIN_MAX_PFN(domain->gaw));
 
         for_each_active_iommu(iommu, drhd)
                 if (test_bit(iommu->seq_id, &domain->iommu_bmp))
@@ -1476,7 +1505,6 @@ static int domain_context_mapping_one(struct dmar_domain *domain, int segment,
                         }
 
                         set_bit(num, iommu->domain_ids);
-                        set_bit(iommu->seq_id, &domain->iommu_bmp);
                         iommu->domains[num] = domain;
                         id = num;
                 }
@@ -1619,42 +1647,94 @@ static int domain_context_mapped(struct pci_dev *pdev)
                                              tmp->devfn);
 }
 
-static int
-domain_page_mapping(struct dmar_domain *domain, dma_addr_t iova,
-                        u64 hpa, size_t size, int prot)
+/* Returns a number of VTD pages, but aligned to MM page size */
+static inline unsigned long aligned_nrpages(unsigned long host_addr,
+                                            size_t size)
 {
-        u64 start_pfn, end_pfn;
-        struct dma_pte *pte;
-        int index;
-        int addr_width = agaw_to_width(domain->agaw);
+        host_addr &= ~PAGE_MASK;
+        return PAGE_ALIGN(host_addr + size) >> VTD_PAGE_SHIFT;
+}
 
-        hpa &= (((u64)1) << addr_width) - 1;
+static int __domain_mapping(struct dmar_domain *domain, unsigned long iov_pfn,
+                            struct scatterlist *sg, unsigned long phys_pfn,
+                            unsigned long nr_pages, int prot)
+{
+        struct dma_pte *first_pte = NULL, *pte = NULL;
+        phys_addr_t uninitialized_var(pteval);
+        int addr_width = agaw_to_width(domain->agaw) - VTD_PAGE_SHIFT;
+        unsigned long sg_res;
+
+        BUG_ON(addr_width < BITS_PER_LONG && (iov_pfn + nr_pages - 1) >> addr_width);
 
         if ((prot & (DMA_PTE_READ|DMA_PTE_WRITE)) == 0)
                 return -EINVAL;
-        iova &= PAGE_MASK;
-        start_pfn = ((u64)hpa) >> VTD_PAGE_SHIFT;
-        end_pfn = (VTD_PAGE_ALIGN(((u64)hpa) + size)) >> VTD_PAGE_SHIFT;
-        index = 0;
-        while (start_pfn < end_pfn) {
-                pte = addr_to_dma_pte(domain, iova + VTD_PAGE_SIZE * index);
-                if (!pte)
-                        return -ENOMEM;
+
+        prot &= DMA_PTE_READ | DMA_PTE_WRITE | DMA_PTE_SNP;
+
+        if (sg)
+                sg_res = 0;
+        else {
+                sg_res = nr_pages + 1;
+                pteval = ((phys_addr_t)phys_pfn << VTD_PAGE_SHIFT) | prot;
+        }
+
+        while (nr_pages--) {
+                uint64_t tmp;
+
+                if (!sg_res) {
+                        sg_res = aligned_nrpages(sg->offset, sg->length);
+                        sg->dma_address = ((dma_addr_t)iov_pfn << VTD_PAGE_SHIFT) + sg->offset;
+                        sg->dma_length = sg->length;
+                        pteval = page_to_phys(sg_page(sg)) | prot;
+                }
+                if (!pte) {
+                        first_pte = pte = pfn_to_dma_pte(domain, iov_pfn);
+                        if (!pte)
+                                return -ENOMEM;
+                }
                 /* We don't need lock here, nobody else
                  * touches the iova range
                  */
-                BUG_ON(dma_pte_addr(pte));
-                dma_set_pte_addr(pte, start_pfn << VTD_PAGE_SHIFT);
-                dma_set_pte_prot(pte, prot);
-                if (prot & DMA_PTE_SNP)
-                        dma_set_pte_snp(pte);
-                domain_flush_cache(domain, pte, sizeof(*pte));
-                start_pfn++;
-                index++;
+                tmp = cmpxchg64_local(&pte->val, 0ULL, pteval);
+                if (tmp) {
+                        static int dumps = 5;
+                        printk(KERN_CRIT "ERROR: DMA PTE for vPFN 0x%lx already set (to %llx not %llx)\n",
+                               iov_pfn, tmp, (unsigned long long)pteval);
+                        if (dumps) {
+                                dumps--;
+                                debug_dma_dump_mappings(NULL);
+                        }
+                        WARN_ON(1);
+                }
+                pte++;
+                if (!nr_pages || first_pte_in_page(pte)) {
+                        domain_flush_cache(domain, first_pte,
+                                           (void *)pte - (void *)first_pte);
+                        pte = NULL;
+                }
+                iov_pfn++;
+                pteval += VTD_PAGE_SIZE;
+                sg_res--;
+                if (!sg_res)
+                        sg = sg_next(sg);
         }
         return 0;
 }
 
+static inline int domain_sg_mapping(struct dmar_domain *domain, unsigned long iov_pfn,
+                                    struct scatterlist *sg, unsigned long nr_pages,
+                                    int prot)
+{
+        return __domain_mapping(domain, iov_pfn, sg, 0, nr_pages, prot);
+}
+
+static inline int domain_pfn_mapping(struct dmar_domain *domain, unsigned long iov_pfn,
+                                     unsigned long phys_pfn, unsigned long nr_pages,
+                                     int prot)
+{
+        return __domain_mapping(domain, iov_pfn, NULL, phys_pfn, nr_pages, prot);
+}
+
 static void iommu_detach_dev(struct intel_iommu *iommu, u8 bus, u8 devfn)
 {
         if (!iommu)
@@ -1845,58 +1925,61 @@ error:
 
 static int iommu_identity_mapping;
 
+static int iommu_domain_identity_map(struct dmar_domain *domain,
+                                     unsigned long long start,
+                                     unsigned long long end)
+{
+        unsigned long first_vpfn = start >> VTD_PAGE_SHIFT;
+        unsigned long last_vpfn = end >> VTD_PAGE_SHIFT;
+
+        if (!reserve_iova(&domain->iovad, dma_to_mm_pfn(first_vpfn),
+                          dma_to_mm_pfn(last_vpfn))) {
+                printk(KERN_ERR "IOMMU: reserve iova failed\n");
+                return -ENOMEM;
+        }
+
+        pr_debug("Mapping reserved region %llx-%llx for domain %d\n",
+                 start, end, domain->id);
+        /*
+         * RMRR range might have overlap with physical memory range,
+         * clear it first
+         */
+        dma_pte_clear_range(domain, first_vpfn, last_vpfn);
+
+        return domain_pfn_mapping(domain, first_vpfn, first_vpfn,
+                                  last_vpfn - first_vpfn + 1,
+                                  DMA_PTE_READ|DMA_PTE_WRITE);
+}
+
 static int iommu_prepare_identity_map(struct pci_dev *pdev,
                                       unsigned long long start,
                                       unsigned long long end)
 {
         struct dmar_domain *domain;
-        unsigned long size;
-        unsigned long long base;
         int ret;
 
         printk(KERN_INFO
-                "IOMMU: Setting identity map for device %s [0x%Lx - 0x%Lx]\n",
-                pci_name(pdev), start, end);
-        if (iommu_identity_mapping)
-                domain = si_domain;
-        else
-                /* page table init */
-                domain = get_domain_for_dev(pdev, DEFAULT_DOMAIN_ADDRESS_WIDTH);
+               "IOMMU: Setting identity map for device %s [0x%Lx - 0x%Lx]\n",
+               pci_name(pdev), start, end);
+
+        domain = get_domain_for_dev(pdev, DEFAULT_DOMAIN_ADDRESS_WIDTH);
         if (!domain)
                 return -ENOMEM;
 
-        /* The address might not be aligned */
-        base = start & PAGE_MASK;
-        size = end - base;
-        size = PAGE_ALIGN(size);
-        if (!reserve_iova(&domain->iovad, IOVA_PFN(base),
-                        IOVA_PFN(base + size) - 1)) {
-                printk(KERN_ERR "IOMMU: reserve iova failed\n");
-                ret = -ENOMEM;
-                goto error;
-        }
-
-        pr_debug("Mapping reserved region %lx@%llx for %s\n",
-                size, base, pci_name(pdev));
-        /*
-         * RMRR range might have overlap with physical memory range,
-         * clear it first
-         */
-        dma_pte_clear_range(domain, base, base + size);
-
-        ret = domain_page_mapping(domain, base, base, size,
-                DMA_PTE_READ|DMA_PTE_WRITE);
+        ret = iommu_domain_identity_map(domain, start, end);
         if (ret)
                 goto error;
 
         /* context entry init */
         ret = domain_context_mapping(domain, pdev, CONTEXT_TT_MULTI_LEVEL);
-        if (!ret)
-                return 0;
-error:
+        if (ret)
+                goto error;
+
+        return 0;
+
+ error:
         domain_exit(domain);
         return ret;
-
 }
 
 static inline int iommu_prepare_rmrr_dev(struct dmar_rmrr_unit *rmrr,
@@ -1908,64 +1991,6 @@ static inline int iommu_prepare_rmrr_dev(struct dmar_rmrr_unit *rmrr,
                 rmrr->end_address + 1);
 }
 
-#ifdef CONFIG_DMAR_GFX_WA
-struct iommu_prepare_data {
-        struct pci_dev *pdev;
-        int ret;
-};
-
-static int __init iommu_prepare_work_fn(unsigned long start_pfn,
-                                         unsigned long end_pfn, void *datax)
-{
-        struct iommu_prepare_data *data;
-
-        data = (struct iommu_prepare_data *)datax;
-
-        data->ret = iommu_prepare_identity_map(data->pdev,
-                                start_pfn<<PAGE_SHIFT, end_pfn<<PAGE_SHIFT);
-        return data->ret;
-
-}
-
-static int __init iommu_prepare_with_active_regions(struct pci_dev *pdev)
-{
-        int nid;
-        struct iommu_prepare_data data;
-
-        data.pdev = pdev;
-        data.ret = 0;
-
-        for_each_online_node(nid) {
-                work_with_active_regions(nid, iommu_prepare_work_fn, &data);
-                if (data.ret)
-                        return data.ret;
-        }
-        return data.ret;
-}
-
-static void __init iommu_prepare_gfx_mapping(void)
-{
-        struct pci_dev *pdev = NULL;
-        int ret;
-
-        for_each_pci_dev(pdev) {
-                if (pdev->dev.archdata.iommu == DUMMY_DEVICE_DOMAIN_INFO ||
-                                !IS_GFX_DEVICE(pdev))
-                        continue;
-                printk(KERN_INFO "IOMMU: gfx device %s 1-1 mapping\n",
-                        pci_name(pdev));
-                ret = iommu_prepare_with_active_regions(pdev);
-                if (ret)
-                        printk(KERN_ERR "IOMMU: mapping reserved region failed\n");
-        }
-}
-#else /* !CONFIG_DMAR_GFX_WA */
-static inline void iommu_prepare_gfx_mapping(void)
-{
-        return;
-}
-#endif
-
 #ifdef CONFIG_DMAR_FLOPPY_WA
 static inline void iommu_prepare_isa(void)
 {
@@ -1976,12 +2001,12 @@ static inline void iommu_prepare_isa(void)
         if (!pdev)
                 return;
 
-        printk(KERN_INFO "IOMMU: Prepare 0-16M unity mapping for LPC\n");
+        printk(KERN_INFO "IOMMU: Prepare 0-16MiB unity mapping for LPC\n");
         ret = iommu_prepare_identity_map(pdev, 0, 16*1024*1024);
 
         if (ret)
-                printk(KERN_ERR "IOMMU: Failed to create 0-64M identity map, "
-                        "floppy might not work\n");
+                printk(KERN_ERR "IOMMU: Failed to create 0-16MiB identity map; "
+                       "floppy might not work\n");
 
 }
 #else
@@ -2009,16 +2034,30 @@ static int __init init_context_pass_through(void)
 }
 
 static int md_domain_init(struct dmar_domain *domain, int guest_width);
+
+static int __init si_domain_work_fn(unsigned long start_pfn,
+                                    unsigned long end_pfn, void *datax)
+{
+        int *ret = datax;
+
+        *ret = iommu_domain_identity_map(si_domain,
+                                         (uint64_t)start_pfn << PAGE_SHIFT,
+                                         (uint64_t)end_pfn << PAGE_SHIFT);
+        return *ret;
+
+}
+
 static int si_domain_init(void)
 {
         struct dmar_drhd_unit *drhd;
         struct intel_iommu *iommu;
-        int ret = 0;
+        int nid, ret = 0;
 
         si_domain = alloc_domain();
         if (!si_domain)
                 return -EFAULT;
 
+        pr_debug("Identity mapping domain is domain %d\n", si_domain->id);
 
         for_each_active_iommu(iommu, drhd) {
                 ret = iommu_attach_domain(si_domain, iommu);
@@ -2035,6 +2074,12 @@ static int si_domain_init(void)
 
         si_domain->flags = DOMAIN_FLAG_STATIC_IDENTITY;
 
+        for_each_online_node(nid) {
+                work_with_active_regions(nid, si_domain_work_fn, &ret);
+                if (ret)
+                        return ret;
+        }
+
         return 0;
 }
 
@@ -2079,9 +2124,49 @@ static int domain_add_dev_info(struct dmar_domain *domain,
         return 0;
 }
 
+static int iommu_should_identity_map(struct pci_dev *pdev, int startup)
+{
+        if (iommu_identity_mapping == 2)
+                return IS_GFX_DEVICE(pdev);
+
+        /*
+         * We want to start off with all devices in the 1:1 domain, and
+         * take them out later if we find they can't access all of memory.
+         *
+         * However, we can't do this for PCI devices behind bridges,
+         * because all PCI devices behind the same bridge will end up
+         * with the same source-id on their transactions.
+         *
+         * Practically speaking, we can't change things around for these
+         * devices at run-time, because we can't be sure there'll be no
+         * DMA transactions in flight for any of their siblings.
+         * 
+         * So PCI devices (unless they're on the root bus) as well as
+         * their parent PCI-PCI or PCIe-PCI bridges must be left _out_ of
+         * the 1:1 domain, just in _case_ one of their siblings turns out
+         * not to be able to map all of memory.
+         */
+        if (!pdev->is_pcie) {
+                if (!pci_is_root_bus(pdev->bus))
+                        return 0;
+                if (pdev->class >> 8 == PCI_CLASS_BRIDGE_PCI)
+                        return 0;
+        } else if (pdev->pcie_type == PCI_EXP_TYPE_PCI_BRIDGE)
+                return 0;
+
+        /* 
+         * At boot time, we don't yet know if devices will be 64-bit capable.
+         * Assume that they will -- if they turn out not to be, then we can 
+         * take them out of the 1:1 domain later.
+         */
+        if (!startup)
+                return pdev->dma_mask > DMA_BIT_MASK(32);
+
+        return 1;
+}
+
 static int iommu_prepare_static_identity_mapping(void)
 {
-        int i;
         struct pci_dev *pdev = NULL;
         int ret;
 
@@ -2089,23 +2174,19 @@ static int iommu_prepare_static_identity_mapping(void)
         if (ret)
                 return -EFAULT;
 
-        printk(KERN_INFO "IOMMU: Setting identity map:\n");
         for_each_pci_dev(pdev) {
-                for (i = 0; i < e820.nr_map; i++) {
-                        struct e820entry *ei = &e820.map[i];
-
-                        if (ei->type == E820_RAM) {
-                                ret = iommu_prepare_identity_map(pdev,
-                                        ei->addr, ei->addr + ei->size);
-                                if (ret)  {
-                                        printk(KERN_INFO "1:1 mapping to one domain failed.\n");
-                                        return -EFAULT;
-                                }
-                        }
+                if (iommu_should_identity_map(pdev, 1)) {
+                        printk(KERN_INFO "IOMMU: identity mapping for device %s\n",
+                               pci_name(pdev));
+
+                        ret = domain_context_mapping(si_domain, pdev,
+                                                     CONTEXT_TT_MULTI_LEVEL);
+                        if (ret)
+                                return ret;
+                        ret = domain_add_dev_info(si_domain, pdev);
+                        if (ret)
+                                return ret;
                 }
-                ret = domain_add_dev_info(si_domain, pdev);
-                if (ret)
-                        return ret;
         }
 
         return 0;
@@ -2260,6 +2341,10 @@ int __init init_dmars(void)
          * identity mapping if iommu_identity_mapping is set.
          */
         if (!iommu_pass_through) {
+#ifdef CONFIG_DMAR_BROKEN_GFX_WA
+                if (!iommu_identity_mapping)
+                        iommu_identity_mapping = 2;
+#endif
                 if (iommu_identity_mapping)
                         iommu_prepare_static_identity_mapping();
                 /*
@@ -2293,8 +2378,6 @@ int __init init_dmars(void)
                         }
                 }
 
-                iommu_prepare_gfx_mapping();
-
                 iommu_prepare_isa();
         }
 
@@ -2339,50 +2422,32 @@ error:
         return ret;
 }
 
-static inline u64 aligned_size(u64 host_addr, size_t size)
-{
-        u64 addr;
-        addr = (host_addr & (~PAGE_MASK)) + size;
-        return PAGE_ALIGN(addr);
-}
-
-struct iova *
-iommu_alloc_iova(struct dmar_domain *domain, size_t size, u64 end)
-{
-        struct iova *piova;
-
-        /* Make sure it's in range */
-        end = min_t(u64, DOMAIN_MAX_ADDR(domain->gaw), end);
-        if (!size || (IOVA_START_ADDR + size > end))
-                return NULL;
-
-        piova = alloc_iova(&domain->iovad,
-                        size >> PAGE_SHIFT, IOVA_PFN(end), 1);
-        return piova;
-}
-
-static struct iova *
-__intel_alloc_iova(struct device *dev, struct dmar_domain *domain,
-                   size_t size, u64 dma_mask)
+/* This takes a number of _MM_ pages, not VTD pages */
+static struct iova *intel_alloc_iova(struct device *dev,
+                                     struct dmar_domain *domain,
+                                     unsigned long nrpages, uint64_t dma_mask)
 {
         struct pci_dev *pdev = to_pci_dev(dev);
         struct iova *iova = NULL;
 
-        if (dma_mask <= DMA_BIT_MASK(32) || dmar_forcedac)
-                iova = iommu_alloc_iova(domain, size, dma_mask);
-        else {
+        /* Restrict dma_mask to the width that the iommu can handle */
+        dma_mask = min_t(uint64_t, DOMAIN_MAX_ADDR(domain->gaw), dma_mask);
+
+        if (!dmar_forcedac && dma_mask > DMA_BIT_MASK(32)) {
                 /*
                  * First try to allocate an io virtual address in
                  * DMA_BIT_MASK(32) and if that fails then try allocating
                  * from higher range
                  */
-                iova = iommu_alloc_iova(domain, size, DMA_BIT_MASK(32));
-                if (!iova)
-                        iova = iommu_alloc_iova(domain, size, dma_mask);
-        }
-
-        if (!iova) {
-                printk(KERN_ERR"Allocating iova for %s failed", pci_name(pdev));
+                iova = alloc_iova(&domain->iovad, nrpages,
+                                  IOVA_PFN(DMA_BIT_MASK(32)), 1);
+                if (iova)
+                        return iova;
+        }
+        iova = alloc_iova(&domain->iovad, nrpages, IOVA_PFN(dma_mask), 1);
+        if (unlikely(!iova)) {
+                printk(KERN_ERR "Allocating %ld-page iova for %s failed",
+                       nrpages, pci_name(pdev));
                 return NULL;
         }
 
@@ -2424,16 +2489,24 @@ static int iommu_dummy(struct pci_dev *pdev)
 }
 
 /* Check if the pdev needs to go through non-identity map and unmap process.*/
-static int iommu_no_mapping(struct pci_dev *pdev)
+static int iommu_no_mapping(struct device *dev)
 {
+        struct pci_dev *pdev;
         int found;
 
+        if (unlikely(dev->bus != &pci_bus_type))
+                return 1;
+
+        pdev = to_pci_dev(dev);
+        if (iommu_dummy(pdev))
+                return 1;
+
         if (!iommu_identity_mapping)
-                return iommu_dummy(pdev);
+                return 0;
 
         found = identity_mapping(pdev);
         if (found) {
-                if (pdev->dma_mask > DMA_BIT_MASK(32))
+                if (iommu_should_identity_map(pdev, 0))
                         return 1;
                 else {
                         /*
@@ -2450,9 +2523,12 @@ static int iommu_no_mapping(struct pci_dev *pdev)
                  * In case of a detached 64 bit DMA device from vm, the device
                  * is put into si_domain for identity mapping.
                  */
-                if (pdev->dma_mask > DMA_BIT_MASK(32)) {
+                if (iommu_should_identity_map(pdev, 0)) {
                         int ret;
                         ret = domain_add_dev_info(si_domain, pdev);
+                        if (ret)
+                                return 0;
+                        ret = domain_context_mapping(si_domain, pdev, CONTEXT_TT_MULTI_LEVEL);
                         if (!ret) {
                                 printk(KERN_INFO "64bit %s uses identity mapping\n",
                                        pci_name(pdev));
@@ -2461,7 +2537,7 @@ static int iommu_no_mapping(struct pci_dev *pdev)
                 }
         }
 
-        return iommu_dummy(pdev);
+        return 0;
 }
 
 static dma_addr_t __intel_map_single(struct device *hwdev, phys_addr_t paddr,
@@ -2474,10 +2550,11 @@ static dma_addr_t __intel_map_single(struct device *hwdev, phys_addr_t paddr,
         int prot = 0;
         int ret;
         struct intel_iommu *iommu;
+        unsigned long paddr_pfn = paddr >> PAGE_SHIFT;
 
         BUG_ON(dir == DMA_NONE);
 
-        if (iommu_no_mapping(pdev))
+        if (iommu_no_mapping(hwdev))
                 return paddr;
 
         domain = get_valid_domain_for_dev(pdev);
@@ -2485,14 +2562,13 @@ static dma_addr_t __intel_map_single(struct device *hwdev, phys_addr_t paddr,
                 return 0;
 
         iommu = domain_get_iommu(domain);
-        size = aligned_size((u64)paddr, size);
+        size = aligned_nrpages(paddr, size);
 
-        iova = __intel_alloc_iova(hwdev, domain, size, pdev->dma_mask);
+        iova = intel_alloc_iova(hwdev, domain, dma_to_mm_pfn(size),
+                                pdev->dma_mask);
         if (!iova)
                 goto error;
 
-        start_paddr = (phys_addr_t)iova->pfn_lo << PAGE_SHIFT;
-
         /*
          * Check if DMAR supports zero-length reads on write only
          * mappings..
@@ -2508,20 +2584,20 @@ static dma_addr_t __intel_map_single(struct device *hwdev, phys_addr_t paddr,
          * might have two guest_addr mapping to the same host paddr, but this
          * is not a big problem
          */
-        ret = domain_page_mapping(domain, start_paddr,
-                                  ((u64)paddr) & PHYSICAL_PAGE_MASK,
-                                  size, prot);
+        ret = domain_pfn_mapping(domain, mm_to_dma_pfn(iova->pfn_lo),
+                                 mm_to_dma_pfn(paddr_pfn), size, prot);
         if (ret)
                 goto error;
 
         /* it's a non-present to present mapping. Only flush if caching mode */
         if (cap_caching_mode(iommu->cap))
-                iommu_flush_iotlb_psi(iommu, 0, start_paddr,
-                                      size >> VTD_PAGE_SHIFT);
+                iommu_flush_iotlb_psi(iommu, 0, mm_to_dma_pfn(iova->pfn_lo), size);
         else
                 iommu_flush_write_buffer(iommu);
 
-        return start_paddr + ((u64)paddr & (~PAGE_MASK));
+        start_paddr = (phys_addr_t)iova->pfn_lo << PAGE_SHIFT;
+        start_paddr += paddr & ~PAGE_MASK;
+        return start_paddr;
 
 error:
         if (iova)
@@ -2614,11 +2690,11 @@ static void intel_unmap_page(struct device *dev, dma_addr_t dev_addr,
 {
         struct pci_dev *pdev = to_pci_dev(dev);
         struct dmar_domain *domain;
-        unsigned long start_addr;
+        unsigned long start_pfn, last_pfn;
         struct iova *iova;
         struct intel_iommu *iommu;
 
-        if (iommu_no_mapping(pdev))
+        if (iommu_no_mapping(dev))
                 return;
 
         domain = find_domain(pdev);
@@ -2627,22 +2703,25 @@ static void intel_unmap_page(struct device *dev, dma_addr_t dev_addr,
         iommu = domain_get_iommu(domain);
 
         iova = find_iova(&domain->iovad, IOVA_PFN(dev_addr));
-        if (!iova)
+        if (WARN_ONCE(!iova, "Driver unmaps unmatched page at PFN %llx\n",
+                      (unsigned long long)dev_addr))
                 return;
 
-        start_addr = iova->pfn_lo << PAGE_SHIFT;
-        size = aligned_size((u64)dev_addr, size);
+        start_pfn = mm_to_dma_pfn(iova->pfn_lo);
+        last_pfn = mm_to_dma_pfn(iova->pfn_hi + 1) - 1;
 
-        pr_debug("Device %s unmapping: %zx@%llx\n",
-                pci_name(pdev), size, (unsigned long long)start_addr);
+        pr_debug("Device %s unmapping: pfn %lx-%lx\n",
+                 pci_name(pdev), start_pfn, last_pfn);
 
         /*  clear the whole page */
-        dma_pte_clear_range(domain, start_addr, start_addr + size);
+        dma_pte_clear_range(domain, start_pfn, last_pfn);
+
         /* free page tables */
-        dma_pte_free_pagetable(domain, start_addr, start_addr + size);
+        dma_pte_free_pagetable(domain, start_pfn, last_pfn);
+
         if (intel_iommu_strict) {
-                iommu_flush_iotlb_psi(iommu, domain->id, start_addr,
-                                      size >> VTD_PAGE_SHIFT);
+                iommu_flush_iotlb_psi(iommu, domain->id, start_pfn,
+                                      last_pfn - start_pfn + 1);
                 /* free iova */
                 __free_iova(&domain->iovad, iova);
         } else {
@@ -2700,17 +2779,13 @@ static void intel_unmap_sg(struct device *hwdev, struct scatterlist *sglist,
                            int nelems, enum dma_data_direction dir,
                            struct dma_attrs *attrs)
 {
-        int i;
         struct pci_dev *pdev = to_pci_dev(hwdev);
         struct dmar_domain *domain;
-        unsigned long start_addr;
+        unsigned long start_pfn, last_pfn;
         struct iova *iova;
-        size_t size = 0;
-        phys_addr_t addr;
-        struct scatterlist *sg;
         struct intel_iommu *iommu;
 
-        if (iommu_no_mapping(pdev))
+        if (iommu_no_mapping(hwdev))
                 return;
 
         domain = find_domain(pdev);
@@ -2719,22 +2794,21 @@ static void intel_unmap_sg(struct device *hwdev, struct scatterlist *sglist,
         iommu = domain_get_iommu(domain);
 
         iova = find_iova(&domain->iovad, IOVA_PFN(sglist[0].dma_address));
-        if (!iova)
+        if (WARN_ONCE(!iova, "Driver unmaps unmatched sglist at PFN %llx\n",
+                      (unsigned long long)sglist[0].dma_address))
                 return;
-        for_each_sg(sglist, sg, nelems, i) {
-                addr = page_to_phys(sg_page(sg)) + sg->offset;
-                size += aligned_size((u64)addr, sg->length);
-        }
 
-        start_addr = iova->pfn_lo << PAGE_SHIFT;
+        start_pfn = mm_to_dma_pfn(iova->pfn_lo);
+        last_pfn = mm_to_dma_pfn(iova->pfn_hi + 1) - 1;
 
         /*  clear the whole page */
-        dma_pte_clear_range(domain, start_addr, start_addr + size);
+        dma_pte_clear_range(domain, start_pfn, last_pfn);
+
         /* free page tables */
-        dma_pte_free_pagetable(domain, start_addr, start_addr + size);
+        dma_pte_free_pagetable(domain, start_pfn, last_pfn);
 
-        iommu_flush_iotlb_psi(iommu, domain->id, start_addr,
-                              size >> VTD_PAGE_SHIFT);
+        iommu_flush_iotlb_psi(iommu, domain->id, start_pfn,
+                              (last_pfn - start_pfn + 1));
 
         /* free iova */
         __free_iova(&domain->iovad, iova);
@@ -2757,21 +2831,20 @@ static int intel_nontranslate_map_sg(struct device *hddev,
 static int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int nelems,
                         enum dma_data_direction dir, struct dma_attrs *attrs)
 {
-        phys_addr_t addr;
         int i;
         struct pci_dev *pdev = to_pci_dev(hwdev);
         struct dmar_domain *domain;
         size_t size = 0;
         int prot = 0;
-        size_t offset = 0;
+        size_t offset_pfn = 0;
         struct iova *iova = NULL;
         int ret;
         struct scatterlist *sg;
-        unsigned long start_addr;
+        unsigned long start_vpfn;
         struct intel_iommu *iommu;
 
         BUG_ON(dir == DMA_NONE);
-        if (iommu_no_mapping(pdev))
+        if (iommu_no_mapping(hwdev))
                 return intel_nontranslate_map_sg(hwdev, sglist, nelems, dir);
 
         domain = get_valid_domain_for_dev(pdev);
@@ -2780,12 +2853,11 @@ static int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int ne
 
         iommu = domain_get_iommu(domain);
 
-        for_each_sg(sglist, sg, nelems, i) {
-                addr = page_to_phys(sg_page(sg)) + sg->offset;
-                size += aligned_size((u64)addr, sg->length);
-        }
+        for_each_sg(sglist, sg, nelems, i)
+                size += aligned_nrpages(sg->offset, sg->length);
 
-        iova = __intel_alloc_iova(hwdev, domain, size, pdev->dma_mask);
+        iova = intel_alloc_iova(hwdev, domain, dma_to_mm_pfn(size),
+                                pdev->dma_mask);
         if (!iova) {
                 sglist->dma_length = 0;
                 return 0;
@@ -2801,35 +2873,24 @@ static int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int ne
         if (dir == DMA_FROM_DEVICE || dir == DMA_BIDIRECTIONAL)
                 prot |= DMA_PTE_WRITE;
 
-        start_addr = iova->pfn_lo << PAGE_SHIFT;
-        offset = 0;
-        for_each_sg(sglist, sg, nelems, i) {
-                addr = page_to_phys(sg_page(sg)) + sg->offset;
-                size = aligned_size((u64)addr, sg->length);
-                ret = domain_page_mapping(domain, start_addr + offset,
-                                          ((u64)addr) & PHYSICAL_PAGE_MASK,
-                                          size, prot);
-                if (ret) {
-                        /*  clear the page */
-                        dma_pte_clear_range(domain, start_addr,
-                                  start_addr + offset);
-                        /* free page tables */
-                        dma_pte_free_pagetable(domain, start_addr,
-                                  start_addr + offset);
-                        /* free iova */
-                        __free_iova(&domain->iovad, iova);
-                        return 0;
-                }
-                sg->dma_address = start_addr + offset +
-                                ((u64)addr & (~PAGE_MASK));
-                sg->dma_length = sg->length;
-                offset += size;
+        start_vpfn = mm_to_dma_pfn(iova->pfn_lo);
+
+        ret = domain_sg_mapping(domain, start_vpfn, sglist, size, prot);
+        if (unlikely(ret)) {
+                /*  clear the page */
+                dma_pte_clear_range(domain, start_vpfn,
+                                    start_vpfn + size - 1);
+                /* free page tables */
+                dma_pte_free_pagetable(domain, start_vpfn,
+                                       start_vpfn + size - 1);
+                /* free iova */
+                __free_iova(&domain->iovad, iova);
+                return 0;
         }
 
         /* it's a non-present to present mapping. Only flush if caching mode */
         if (cap_caching_mode(iommu->cap))
-                iommu_flush_iotlb_psi(iommu, 0, start_addr,
-                                      offset >> VTD_PAGE_SHIFT);
+                iommu_flush_iotlb_psi(iommu, 0, start_vpfn, offset_pfn);
         else
                 iommu_flush_write_buffer(iommu);
 
@@ -3334,7 +3395,6 @@ static int md_domain_init(struct dmar_domain *domain, int guest_width)
         int adjust_width;
 
         init_iova_domain(&domain->iovad, DMA_32BIT_PFN);
-        spin_lock_init(&domain->mapping_lock);
         spin_lock_init(&domain->iommu_lock);
 
         domain_reserve_special_ranges(domain);
@@ -3348,6 +3408,7 @@ static int md_domain_init(struct dmar_domain *domain, int guest_width)
 
         domain->iommu_count = 0;
         domain->iommu_coherency = 0;
+        domain->iommu_snooping = 0;
         domain->max_addr = 0;
 
         /* always allocate the top pgd */
@@ -3388,8 +3449,6 @@ static void iommu_free_vm_domain(struct dmar_domain *domain)
 
 static void vm_domain_exit(struct dmar_domain *domain)
 {
-        u64 end;
-
         /* Domain 0 is reserved, so dont process it */
         if (!domain)
                 return;
@@ -3397,14 +3456,12 @@ static void vm_domain_exit(struct dmar_domain *domain)
         vm_domain_remove_all_dev_info(domain);
         /* destroy iovas */
         put_iova_domain(&domain->iovad);
-        end = DOMAIN_MAX_ADDR(domain->gaw);
-        end = end & (~VTD_PAGE_MASK);
 
         /* clear ptes */
-        dma_pte_clear_range(domain, 0, end);
+        dma_pte_clear_range(domain, 0, DOMAIN_MAX_PFN(domain->gaw));
 
         /* free page tables */
-        dma_pte_free_pagetable(domain, 0, end);
+        dma_pte_free_pagetable(domain, 0, DOMAIN_MAX_PFN(domain->gaw));
 
         iommu_free_vm_domain(domain);
         free_domain_mem(domain);
@@ -3513,7 +3570,7 @@ static int intel_iommu_map_range(struct iommu_domain *domain,
         if ((iommu_prot & IOMMU_CACHE) && dmar_domain->iommu_snooping)
                 prot |= DMA_PTE_SNP;
 
-        max_addr = (iova & VTD_PAGE_MASK) + VTD_PAGE_ALIGN(size);
+        max_addr = iova + size;
         if (dmar_domain->max_addr < max_addr) {
                 int min_agaw;
                 u64 end;
@@ -3531,8 +3588,11 @@ static int intel_iommu_map_range(struct iommu_domain *domain,
                 }
                 dmar_domain->max_addr = max_addr;
         }
-
-        ret = domain_page_mapping(dmar_domain, iova, hpa, size, prot);
+        /* Round up size to next multiple of PAGE_SIZE, if it and
+           the low bits of hpa would take us onto the next page */
+        size = aligned_nrpages(hpa, size);
+        ret = domain_pfn_mapping(dmar_domain, iova >> VTD_PAGE_SHIFT,
+                                 hpa >> VTD_PAGE_SHIFT, size, prot);
         return ret;
 }
 
@@ -3540,15 +3600,15 @@ static void intel_iommu_unmap_range(struct iommu_domain *domain,
                                     unsigned long iova, size_t size)
 {
         struct dmar_domain *dmar_domain = domain->priv;
-        dma_addr_t base;
 
-        /* The address might not be aligned */
-        base = iova & VTD_PAGE_MASK;
-        size = VTD_PAGE_ALIGN(size);
-        dma_pte_clear_range(dmar_domain, base, base + size);
+        if (!size)
+                return;
+
+        dma_pte_clear_range(dmar_domain, iova >> VTD_PAGE_SHIFT,
+                            (iova + size - 1) >> VTD_PAGE_SHIFT);
 
-        if (dmar_domain->max_addr == base + size)
-                dmar_domain->max_addr = base;
+        if (dmar_domain->max_addr == iova + size)
+                dmar_domain->max_addr = iova;
 }
 
 static phys_addr_t intel_iommu_iova_to_phys(struct iommu_domain *domain,
@@ -3558,7 +3618,7 @@ static phys_addr_t intel_iommu_iova_to_phys(struct iommu_domain *domain,
         struct dma_pte *pte;
         u64 phys = 0;
 
-        pte = addr_to_dma_pte(dmar_domain, iova);
+        pte = pfn_to_dma_pte(dmar_domain, iova >> VTD_PAGE_SHIFT);
         if (pte)
                 phys = dma_pte_addr(pte);
 
diff --git a/drivers/pci/iova.c b/drivers/pci/iova.c
index 2287116e9822..46dd440e2315 100644
--- a/drivers/pci/iova.c
+++ b/drivers/pci/iova.c
@@ -1,9 +1,19 @@
 /*
- * Copyright (c) 2006, Intel Corporation.
+ * Copyright © 2006-2009, Intel Corporation.
  *
- * This file is released under the GPLv2.
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place - Suite 330, Boston, MA 02111-1307 USA.
  *
- * Copyright (C) 2006-2008 Intel Corporation
  * Author: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
  */
 
@@ -123,7 +133,15 @@ move_left:
         /* Insert the new_iova into domain rbtree by holding writer lock */
         /* Add new node and rebalance tree. */
         {
-                struct rb_node **entry = &((prev)), *parent = NULL;
+                struct rb_node **entry, *parent = NULL;
+
+                /* If we have 'prev', it's a valid place to start the
+                   insertion. Otherwise, start from the root. */
+                if (prev)
+                        entry = &prev;
+                else
+                        entry = &iovad->rbroot.rb_node;
+
                 /* Figure out where to put new node */
                 while (*entry) {
                         struct iova *this = container_of(*entry,
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index d9f06fbfa0bf..d986afb7032b 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -127,17 +127,23 @@ static inline __attribute_const__ u32 msi_enabled_mask(u16 control)
  * reliably as devices without an INTx disable bit will then generate a
  * level IRQ which will never be cleared.
  */
-static void msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
+static u32 __msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
 {
         u32 mask_bits = desc->masked;
 
         if (!desc->msi_attrib.maskbit)
-                return;
+                return 0;
 
         mask_bits &= ~mask;
         mask_bits |= flag;
         pci_write_config_dword(desc->dev, desc->mask_pos, mask_bits);
-        desc->masked = mask_bits;
+
+        return mask_bits;
+}
+
+static void msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
+{
+        desc->masked = __msi_mask_irq(desc, mask, flag);
 }
 
 /*
@@ -147,15 +153,21 @@ static void msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
  * file.  This saves a few milliseconds when initialising devices with lots
  * of MSI-X interrupts.
  */
-static void msix_mask_irq(struct msi_desc *desc, u32 flag)
+static u32 __msix_mask_irq(struct msi_desc *desc, u32 flag)
 {
         u32 mask_bits = desc->masked;
         unsigned offset = desc->msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE +
-                                        PCI_MSIX_ENTRY_VECTOR_CTRL_OFFSET;
+                                                PCI_MSIX_ENTRY_VECTOR_CTRL;
         mask_bits &= ~1;
         mask_bits |= flag;
         writel(mask_bits, desc->mask_base + offset);
-        desc->masked = mask_bits;
+
+        return mask_bits;
+}
+
+static void msix_mask_irq(struct msi_desc *desc, u32 flag)
+{
+        desc->masked = __msix_mask_irq(desc, flag);
 }
 
 static void msi_set_mask_bit(unsigned irq, u32 flag)
@@ -188,9 +200,9 @@ void read_msi_msg_desc(struct irq_desc *desc, struct msi_msg *msg)
                 void __iomem *base = entry->mask_base +
                         entry->msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE;
 
-                msg->address_lo = readl(base + PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET);
-                msg->address_hi = readl(base + PCI_MSIX_ENTRY_UPPER_ADDR_OFFSET);
-                msg->data = readl(base + PCI_MSIX_ENTRY_DATA_OFFSET);
+                msg->address_lo = readl(base + PCI_MSIX_ENTRY_LOWER_ADDR);
+                msg->address_hi = readl(base + PCI_MSIX_ENTRY_UPPER_ADDR);
+                msg->data = readl(base + PCI_MSIX_ENTRY_DATA);
         } else {
                 struct pci_dev *dev = entry->dev;
                 int pos = entry->msi_attrib.pos;
@@ -225,11 +237,9 @@ void write_msi_msg_desc(struct irq_desc *desc, struct msi_msg *msg)
                 base = entry->mask_base +
                         entry->msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE;
 
-                writel(msg->address_lo,
-                        base + PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET);
-                writel(msg->address_hi,
-                        base + PCI_MSIX_ENTRY_UPPER_ADDR_OFFSET);
-                writel(msg->data, base + PCI_MSIX_ENTRY_DATA_OFFSET);
+                writel(msg->address_lo, base + PCI_MSIX_ENTRY_LOWER_ADDR);
+                writel(msg->address_hi, base + PCI_MSIX_ENTRY_UPPER_ADDR);
+                writel(msg->data, base + PCI_MSIX_ENTRY_DATA);
         } else {
                 struct pci_dev *dev = entry->dev;
                 int pos = entry->msi_attrib.pos;
@@ -385,6 +395,7 @@ static int msi_capability_init(struct pci_dev *dev, int nvec)
         /* Configure MSI capability structure */
         ret = arch_setup_msi_irqs(dev, nvec, PCI_CAP_ID_MSI);
         if (ret) {
+                msi_mask_irq(entry, mask, ~mask);
                 msi_free_irqs(dev);
                 return ret;
         }
@@ -439,8 +450,14 @@ static int msix_capability_init(struct pci_dev *dev,
 
         for (i = 0; i < nvec; i++) {
                 entry = alloc_msi_entry(dev);
-                if (!entry)
-                        break;
+                if (!entry) {
+                        if (!i)
+                                iounmap(base);
+                        else
+                                msi_free_irqs(dev);
+                        /* No enough memory. Don't try again */
+                        return -ENOMEM;
+                }
 
                 j = entries[i].entry;
                 entry->msi_attrib.is_msix = 1;
@@ -487,7 +504,7 @@ static int msix_capability_init(struct pci_dev *dev,
                 set_irq_msi(entry->irq, entry);
                 j = entries[i].entry;
                 entry->masked = readl(base + j * PCI_MSIX_ENTRY_SIZE +
-                                        PCI_MSIX_ENTRY_VECTOR_CTRL_OFFSET);
+                                                PCI_MSIX_ENTRY_VECTOR_CTRL);
                 msix_mask_irq(entry, 1);
                 i++;
         }
@@ -611,9 +628,11 @@ void pci_msi_shutdown(struct pci_dev *dev)
         pci_intx_for_msi(dev, 1);
         dev->msi_enabled = 0;
 
+        /* Return the device with MSI unmasked as initial states */
         pci_read_config_word(dev, pos + PCI_MSI_FLAGS, &ctrl);
         mask = msi_capable_mask(ctrl);
-        msi_mask_irq(desc, mask, ~mask);
+        /* Keep cached state to be restored */
+        __msi_mask_irq(desc, mask, ~mask);
 
         /* Restore dev->irq to its default pin-assertion irq */
         dev->irq = desc->msi_attrib.default_irq;
@@ -653,7 +672,6 @@ static int msi_free_irqs(struct pci_dev* dev)
 
         list_for_each_entry_safe(entry, tmp, &dev->msi_list, list) {
                 if (entry->msi_attrib.is_msix) {
-                        msix_mask_irq(entry, 1);
                         if (list_is_last(&entry->list, &dev->msi_list))
                                 iounmap(entry->mask_base);
                 }
@@ -741,9 +759,17 @@ static void msix_free_all_irqs(struct pci_dev *dev)
 
 void pci_msix_shutdown(struct pci_dev* dev)
 {
+        struct msi_desc *entry;
+
         if (!pci_msi_enable || !dev || !dev->msix_enabled)
                 return;
 
+        /* Return the device with MSI-X masked as initial states */
+        list_for_each_entry(entry, &dev->msi_list, list) {
+                /* Keep cached states to be restored */
+                __msix_mask_irq(entry, 1);
+        }
+
         msix_set_enable(dev, 0);
         pci_intx_for_msi(dev, 1);
         dev->msix_enabled = 0;
diff --git a/drivers/pci/msi.h b/drivers/pci/msi.h
index a0662842550b..de27c1cb5a2b 100644
--- a/drivers/pci/msi.h
+++ b/drivers/pci/msi.h
@@ -6,11 +6,11 @@
 #ifndef MSI_H
 #define MSI_H
 
-#define PCI_MSIX_ENTRY_SIZE                     16
-#define  PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET       0
-#define  PCI_MSIX_ENTRY_UPPER_ADDR_OFFSET       4
-#define  PCI_MSIX_ENTRY_DATA_OFFSET             8
-#define  PCI_MSIX_ENTRY_VECTOR_CTRL_OFFSET      12
+#define PCI_MSIX_ENTRY_SIZE             16
+#define  PCI_MSIX_ENTRY_LOWER_ADDR      0
+#define  PCI_MSIX_ENTRY_UPPER_ADDR      4
+#define  PCI_MSIX_ENTRY_DATA            8
+#define  PCI_MSIX_ENTRY_VECTOR_CTRL     12
 
 #define msi_control_reg(base)           (base + PCI_MSI_FLAGS)
 #define msi_lower_address_reg(base)     (base + PCI_MSI_ADDRESS_LO)
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 6c93af5ced18..dbd0f947f497 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1517,11 +1517,20 @@ void pci_enable_ari(struct pci_dev *dev)
  *
  * Perform INTx swizzling for a device behind one level of bridge.  This is
  * required by section 9.1 of the PCI-to-PCI bridge specification for devices
- * behind bridges on add-in cards.
+ * behind bridges on add-in cards.  For devices with ARI enabled, the slot
+ * number is always 0 (see the Implementation Note in section 2.2.8.1 of
+ * the PCI Express Base Specification, Revision 2.1)
  */
 u8 pci_swizzle_interrupt_pin(struct pci_dev *dev, u8 pin)
 {
-        return (((pin - 1) + PCI_SLOT(dev->devfn)) % 4) + 1;
+        int slot;
+
+        if (pci_ari_enabled(dev->bus))
+                slot = 0;
+        else
+                slot = PCI_SLOT(dev->devfn);
+
+        return (((pin - 1) + slot) % 4) + 1;
 }
 
 int
@@ -2171,7 +2180,7 @@ static int pci_parent_bus_reset(struct pci_dev *dev, int probe)
         u16 ctrl;
         struct pci_dev *pdev;
 
-        if (dev->subordinate)
+        if (pci_is_root_bus(dev->bus) || dev->subordinate || !dev->bus->self)
                 return -ENOTTY;
 
         list_for_each_entry(pdev, &dev->bus->devices, bus_list)
diff --git a/drivers/pci/pcie/aer/ecrc.c b/drivers/pci/pcie/aer/ecrc.c
index ece97df4df6d..a928d8ab6bda 100644
--- a/drivers/pci/pcie/aer/ecrc.c
+++ b/drivers/pci/pcie/aer/ecrc.c
@@ -106,7 +106,7 @@ void pcie_set_ecrc_checking(struct pci_dev *dev)
                 disable_ecrc_checking(dev);
                 break;
         case ECRC_POLICY_ON:
-                enable_ecrc_checking(dev);;
+                enable_ecrc_checking(dev);
                 break;
         default:
                 return;
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 56552d74abea..06b965623962 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1058,6 +1058,11 @@ static void __devinit quirk_no_ata_d3(struct pci_dev *pdev)
 }
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_ANY_ID, quirk_no_ata_d3);
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATI, PCI_ANY_ID, quirk_no_ata_d3);
+/* ALi loses some register settings that we cannot then restore */
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, quirk_no_ata_d3);
+/* VIA comes back fine but we need to keep it alive or ACPI GTM failures
+   occur when mode detecting */
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_no_ata_d3);
 
 /* This was originally an Alpha specific thing, but it really fits here.
  * The i82375 PCI/EISA bridge appears as non-classified. Fix that.
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index b711fb7181e2..1898c7b47907 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -100,16 +100,16 @@ int pci_claim_resource(struct pci_dev *dev, int resource)
 {
         struct resource *res = &dev->resource[resource];
         struct resource *root;
-        char *dtype = resource < PCI_BRIDGE_RESOURCES ? "device" : "bridge";
         int err;
 
         root = pci_find_parent_resource(dev, res);
 
         err = -EINVAL;
         if (root != NULL)
-                err = insert_resource(root, res);
+                err = request_resource(root, res);
 
         if (err) {
+                const char *dtype = resource < PCI_BRIDGE_RESOURCES ? "device" : "bridge";
                 dev_err(&dev->dev, "BAR %d: %s of %s %pR\n",
                         resource,
                         root ? "address space collision on" :
diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c
index eddb0748b0ea..8c02b6c53bdb 100644
--- a/drivers/pci/slot.c
+++ b/drivers/pci/slot.c
@@ -311,7 +311,7 @@ EXPORT_SYMBOL_GPL(pci_destroy_slot);
 #include <linux/pci_hotplug.h>
 /**
  * pci_hp_create_link - create symbolic link to the hotplug driver module.
- * @slot: struct pci_slot
+ * @pci_slot: struct pci_slot
  *
  * Helper function for pci_hotplug_core.c to create symbolic link to
  * the hotplug driver module.
@@ -334,7 +334,7 @@ EXPORT_SYMBOL_GPL(pci_hp_create_module_link);
 
 /**
  * pci_hp_remove_link - remove symbolic link to the hotplug driver module.
- * @slot: struct pci_slot
+ * @pci_slot: struct pci_slot
  *
  * Helper function for pci_hotplug_core.c to remove symbolic link to
  * the hotplug driver module.
diff --git a/drivers/pci/syscall.c b/drivers/pci/syscall.c
index ec22284eed30..e1c1ec540893 100644
--- a/drivers/pci/syscall.c
+++ b/drivers/pci/syscall.c
@@ -9,7 +9,6 @@
 
 #include <linux/errno.h>
 #include <linux/pci.h>
-#include <linux/smp_lock.h>
 #include <linux/syscalls.h>
 #include <asm/uaccess.h>
 #include "pci.h"
diff --git a/drivers/pcmcia/tcic.c b/drivers/pcmcia/tcic.c
index 9ad97ea836e8..8eb04230fec7 100644
--- a/drivers/pcmcia/tcic.c
+++ b/drivers/pcmcia/tcic.c
@@ -472,7 +472,8 @@ static int __init init_tcic(void)
     init_timer(&poll_timer);
 
     /* Build interrupt mask */
-    printk(", %d sockets\n" KERN_INFO "  irq list (", sockets);
+    printk(KERN_CONT ", %d sockets\n", sockets);
+    printk(KERN_INFO "  irq list (");
     if (irq_list_count == 0)
         mask = irq_mask;
     else
diff --git a/drivers/pcmcia/vrc4171_card.c b/drivers/pcmcia/vrc4171_card.c
index 659421d0ca46..d4ad50d737b0 100644
--- a/drivers/pcmcia/vrc4171_card.c
+++ b/drivers/pcmcia/vrc4171_card.c
@@ -1,7 +1,7 @@
 /*
  * vrc4171_card.c, NEC VRC4171 Card Controller driver for Socket Services.
  *
- * Copyright (C) 2003-2005  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ * Copyright (C) 2003-2005  Yoichi Yuasa <yuasa@linux-mips.org>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -32,7 +32,7 @@
 #include "i82365.h"
 
 MODULE_DESCRIPTION("NEC VRC4171 Card Controllers driver for Socket Services");
-MODULE_AUTHOR("Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>");
+MODULE_AUTHOR("Yoichi Yuasa <yuasa@linux-mips.org>");
 MODULE_LICENSE("GPL");
 
 #define CARD_MAX_SLOTS          2
diff --git a/drivers/pcmcia/vrc4173_cardu.c b/drivers/pcmcia/vrc4173_cardu.c
index 812f038e9bda..9b3c15827e5c 100644
--- a/drivers/pcmcia/vrc4173_cardu.c
+++ b/drivers/pcmcia/vrc4173_cardu.c
@@ -6,7 +6,7 @@
  *      NEC VRC4173 CARDU driver for Socket Services
  *      (This device doesn't support CardBus. it is supporting only 16bit PC Card.)
  *
- * Copyright 2002,2003 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ * Copyright 2002,2003 Yoichi Yuasa <yuasa@linux-mips.org>
  *
  *  This program is free software; you can redistribute it and/or modify it
  *  under the terms of the GNU General Public License as published by the
@@ -41,7 +41,7 @@
 #include "vrc4173_cardu.h"
 
 MODULE_DESCRIPTION("NEC VRC4173 CARDU driver for Socket Services");
-MODULE_AUTHOR("Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>");
+MODULE_AUTHOR("Yoichi Yuasa <yuasa@linux-mips.org>");
 MODULE_LICENSE("GPL");
 
 static int vrc4173_cardu_slots;
diff --git a/drivers/pcmcia/vrc4173_cardu.h b/drivers/pcmcia/vrc4173_cardu.h
index 7d77c74120c1..a7d96018ed8d 100644
--- a/drivers/pcmcia/vrc4173_cardu.h
+++ b/drivers/pcmcia/vrc4173_cardu.h
@@ -5,7 +5,7 @@
  * BRIEF MODULE DESCRIPTION
  *      Include file for NEC VRC4173 CARDU.
  *
- * Copyright 2002 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ * Copyright 2002 Yoichi Yuasa <yuasa@linux-mips.org>
  *
  *  This program is free software; you can redistribute it and/or modify it
  *  under the terms of the GNU General Public License as published by the
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 7232fe7104aa..77c6097ced80 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -277,31 +277,6 @@ config THINKPAD_ACPI_UNSAFE_LEDS
           Say N here, unless you are building a kernel for your own
           use, and need to control the important firmware LEDs.
 
-config THINKPAD_ACPI_DOCK
-        bool "Legacy Docking Station Support"
-        depends on THINKPAD_ACPI
-        depends on ACPI_DOCK=n
-        default n
-        ---help---
-          Allows the thinkpad_acpi driver to handle docking station events.
-          This support was made obsolete by the generic ACPI docking station
-          support (CONFIG_ACPI_DOCK).  It will allow locking and removing the
-          laptop from the docking station, but will not properly connect PCI
-          devices.
-
-          If you are not sure, say N here.
-
-config THINKPAD_ACPI_BAY
-        bool "Legacy Removable Bay Support"
-        depends on THINKPAD_ACPI
-        default y
-        ---help---
-          Allows the thinkpad_acpi driver to handle removable bays.  It will
-          electrically disable the device in the bay, and also generate
-          notifications when the bay lever is ejected or inserted.
-
-          If you are not sure, say Y here.
-
 config THINKPAD_ACPI_VIDEO
         bool "Video output control support"
         depends on THINKPAD_ACPI
@@ -355,6 +330,7 @@ config EEEPC_LAPTOP
         depends on INPUT
         depends on EXPERIMENTAL
         depends on RFKILL || RFKILL = n
+        depends on HOTPLUG_PCI
         select BACKLIGHT_CLASS_DEVICE
         select HWMON
         ---help---
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index be2fd6f91639..fb45f5ee8df1 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -973,7 +973,7 @@ static int acer_rfkill_set(void *data, bool blocked)
 {
         acpi_status status;
         u32 cap = (unsigned long)data;
-        status = set_u32(!!blocked, cap);
+        status = set_u32(!blocked, cap);
         if (ACPI_FAILURE(status))
                 return -ENODEV;
         return 0;
diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c
index 4207b26ff990..222ffb892f22 100644
--- a/drivers/platform/x86/eeepc-laptop.c
+++ b/drivers/platform/x86/eeepc-laptop.c
@@ -16,6 +16,8 @@
  *  GNU General Public License for more details.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -31,6 +33,7 @@
 #include <linux/input.h>
 #include <linux/rfkill.h>
 #include <linux/pci.h>
+#include <linux/pci_hotplug.h>
 
 #define EEEPC_LAPTOP_VERSION    "0.1"
 
@@ -40,11 +43,6 @@
 #define EEEPC_HOTK_DEVICE_NAME  "Hotkey"
 #define EEEPC_HOTK_HID          "ASUS010"
 
-#define EEEPC_LOG       EEEPC_HOTK_FILE ": "
-#define EEEPC_ERR       KERN_ERR        EEEPC_LOG
-#define EEEPC_WARNING   KERN_WARNING    EEEPC_LOG
-#define EEEPC_NOTICE    KERN_NOTICE     EEEPC_LOG
-#define EEEPC_INFO      KERN_INFO       EEEPC_LOG
 
 /*
  * Definitions for Asus EeePC
@@ -141,8 +139,11 @@ struct eeepc_hotk {
         u16 event_count[128];           /* count for each event */
         struct input_dev *inputdev;
         u16 *keycode_map;
-        struct rfkill *eeepc_wlan_rfkill;
-        struct rfkill *eeepc_bluetooth_rfkill;
+        struct rfkill *wlan_rfkill;
+        struct rfkill *bluetooth_rfkill;
+        struct rfkill *wwan3g_rfkill;
+        struct hotplug_slot *hotplug_slot;
+        struct work_struct hotplug_work;
 };
 
 /* The actual device the driver binds to */
@@ -213,6 +214,15 @@ static struct acpi_driver eeepc_hotk_driver = {
         },
 };
 
+/* PCI hotplug ops */
+static int eeepc_get_adapter_status(struct hotplug_slot *slot, u8 *value);
+
+static struct hotplug_slot_ops eeepc_hotplug_slot_ops = {
+        .owner = THIS_MODULE,
+        .get_adapter_status = eeepc_get_adapter_status,
+        .get_power_status = eeepc_get_adapter_status,
+};
+
 /* The backlight device /sys/class/backlight */
 static struct backlight_device *eeepc_backlight_device;
 
@@ -274,20 +284,20 @@ static int set_acpi(int cm, int value)
                 if (method == NULL)
                         return -ENODEV;
                 if (write_acpi_int(ehotk->handle, method, value, NULL))
-                        printk(EEEPC_WARNING "Error writing %s\n", method);
+                        pr_warning("Error writing %s\n", method);
         }
         return 0;
 }
 
 static int get_acpi(int cm)
 {
-        int value = -1;
+        int value = -ENODEV;
         if ((ehotk->cm_supported & (0x1 << cm))) {
                 const char *method = cm_getv[cm];
                 if (method == NULL)
                         return -ENODEV;
                 if (read_acpi_int(ehotk->handle, method, &value))
-                        printk(EEEPC_WARNING "Error reading %s\n", method);
+                        pr_warning("Error reading %s\n", method);
         }
         return value;
 }
@@ -359,13 +369,19 @@ static ssize_t store_sys_acpi(int cm, const char *buf, size_t count)
 
         rv = parse_arg(buf, count, &value);
         if (rv > 0)
-                set_acpi(cm, value);
+                value = set_acpi(cm, value);
+        if (value < 0)
+                return value;
         return rv;
 }
 
 static ssize_t show_sys_acpi(int cm, char *buf)
 {
-        return sprintf(buf, "%d\n", get_acpi(cm));
+        int value = get_acpi(cm);
+
+        if (value < 0)
+                return value;
+        return sprintf(buf, "%d\n", value);
 }
 
 #define EEEPC_CREATE_DEVICE_ATTR(_name, _cm)                            \
@@ -539,6 +555,28 @@ static int eeepc_setkeycode(struct input_dev *dev, int scancode, int keycode)
         return -EINVAL;
 }
 
+static void cmsg_quirk(int cm, const char *name)
+{
+        int dummy;
+
+        /* Some BIOSes do not report cm although it is avaliable.
+           Check if cm_getv[cm] works and, if yes, assume cm should be set. */
+        if (!(ehotk->cm_supported & (1 << cm))
+            && !read_acpi_int(ehotk->handle, cm_getv[cm], &dummy)) {
+                pr_info("%s (%x) not reported by BIOS,"
+                        " enabling anyway\n", name, 1 << cm);
+                ehotk->cm_supported |= 1 << cm;
+        }
+}
+
+static void cmsg_quirks(void)
+{
+        cmsg_quirk(CM_ASL_LID, "LID");
+        cmsg_quirk(CM_ASL_TYPE, "TYPE");
+        cmsg_quirk(CM_ASL_PANELPOWER, "PANELPOWER");
+        cmsg_quirk(CM_ASL_TPD, "TPD");
+}
+
 static int eeepc_hotk_check(void)
 {
         const struct key_entry *key;
@@ -551,26 +589,24 @@ static int eeepc_hotk_check(void)
         if (ehotk->device->status.present) {
                 if (write_acpi_int(ehotk->handle, "INIT", ehotk->init_flag,
                                     &buffer)) {
-                        printk(EEEPC_ERR "Hotkey initialization failed\n");
+                        pr_err("Hotkey initialization failed\n");
                         return -ENODEV;
                 } else {
-                        printk(EEEPC_NOTICE "Hotkey init flags 0x%x\n",
-                               ehotk->init_flag);
+                        pr_notice("Hotkey init flags 0x%x\n", ehotk->init_flag);
                 }
                 /* get control methods supported */
                 if (read_acpi_int(ehotk->handle, "CMSG"
                                    , &ehotk->cm_supported)) {
-                        printk(EEEPC_ERR
-                               "Get control methods supported failed\n");
+                        pr_err("Get control methods supported failed\n");
                         return -ENODEV;
                 } else {
-                        printk(EEEPC_INFO
-                               "Get control methods supported: 0x%x\n",
-                               ehotk->cm_supported);
+                        cmsg_quirks();
+                        pr_info("Get control methods supported: 0x%x\n",
+                                ehotk->cm_supported);
                 }
                 ehotk->inputdev = input_allocate_device();
                 if (!ehotk->inputdev) {
-                        printk(EEEPC_INFO "Unable to allocate input device\n");
+                        pr_info("Unable to allocate input device\n");
                         return 0;
                 }
                 ehotk->inputdev->name = "Asus EeePC extra buttons";
@@ -589,12 +625,12 @@ static int eeepc_hotk_check(void)
                 }
                 result = input_register_device(ehotk->inputdev);
                 if (result) {
-                        printk(EEEPC_INFO "Unable to register input device\n");
+                        pr_info("Unable to register input device\n");
                         input_free_device(ehotk->inputdev);
                         return 0;
                 }
         } else {
-                printk(EEEPC_ERR "Hotkey device not present, aborting\n");
+                pr_err("Hotkey device not present, aborting\n");
                 return -EINVAL;
         }
         return 0;
@@ -612,14 +648,27 @@ static int notify_brn(void)
         return -1;
 }
 
-static void eeepc_rfkill_hotplug(void)
+static int eeepc_get_adapter_status(struct hotplug_slot *hotplug_slot,
+                                    u8 *value)
+{
+        int val = get_acpi(CM_ASL_WLAN);
+
+        if (val == 1 || val == 0)
+                *value = val;
+        else
+                return -EINVAL;
+
+        return 0;
+}
+
+static void eeepc_hotplug_work(struct work_struct *work)
 {
         struct pci_dev *dev;
         struct pci_bus *bus = pci_find_bus(0, 1);
         bool blocked;
 
         if (!bus) {
-                printk(EEEPC_WARNING "Unable to find PCI bus 1?\n");
+                pr_warning("Unable to find PCI bus 1?\n");
                 return;
         }
 
@@ -635,7 +684,7 @@ static void eeepc_rfkill_hotplug(void)
                 if (dev) {
                         pci_bus_assign_resources(bus);
                         if (pci_bus_add_device(dev))
-                                printk(EEEPC_ERR "Unable to hotplug wifi\n");
+                                pr_err("Unable to hotplug wifi\n");
                 }
         } else {
                 dev = pci_get_slot(bus, 0);
@@ -645,7 +694,7 @@ static void eeepc_rfkill_hotplug(void)
                 }
         }
 
-        rfkill_set_sw_state(ehotk->eeepc_wlan_rfkill, blocked);
+        rfkill_set_sw_state(ehotk->wlan_rfkill, blocked);
 }
 
 static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data)
@@ -653,7 +702,7 @@ static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data)
         if (event != ACPI_NOTIFY_BUS_CHECK)
                 return;
 
-        eeepc_rfkill_hotplug();
+        schedule_work(&ehotk->hotplug_work);
 }
 
 static void eeepc_hotk_notify(struct acpi_device *device, u32 event)
@@ -718,8 +767,7 @@ static int eeepc_register_rfkill_notifier(char *node)
                                                      eeepc_rfkill_notify,
                                                      NULL);
                 if (ACPI_FAILURE(status))
-                        printk(EEEPC_WARNING
-                               "Failed to register notify on %s\n", node);
+                        pr_warning("Failed to register notify on %s\n", node);
         } else
                 return -ENODEV;
 
@@ -738,19 +786,66 @@ static void eeepc_unregister_rfkill_notifier(char *node)
                                                      ACPI_SYSTEM_NOTIFY,
                                                      eeepc_rfkill_notify);
                 if (ACPI_FAILURE(status))
-                        printk(EEEPC_ERR
-                               "Error removing rfkill notify handler %s\n",
+                        pr_err("Error removing rfkill notify handler %s\n",
                                 node);
         }
 }
 
+static void eeepc_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot)
+{
+        kfree(hotplug_slot->info);
+        kfree(hotplug_slot);
+}
+
+static int eeepc_setup_pci_hotplug(void)
+{
+        int ret = -ENOMEM;
+        struct pci_bus *bus = pci_find_bus(0, 1);
+
+        if (!bus) {
+                pr_err("Unable to find wifi PCI bus\n");
+                return -ENODEV;
+        }
+
+        ehotk->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL);
+        if (!ehotk->hotplug_slot)
+                goto error_slot;
+
+        ehotk->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info),
+                                            GFP_KERNEL);
+        if (!ehotk->hotplug_slot->info)
+                goto error_info;
+
+        ehotk->hotplug_slot->private = ehotk;
+        ehotk->hotplug_slot->release = &eeepc_cleanup_pci_hotplug;
+        ehotk->hotplug_slot->ops = &eeepc_hotplug_slot_ops;
+        eeepc_get_adapter_status(ehotk->hotplug_slot,
+                                 &ehotk->hotplug_slot->info->adapter_status);
+
+        ret = pci_hp_register(ehotk->hotplug_slot, bus, 0, "eeepc-wifi");
+        if (ret) {
+                pr_err("Unable to register hotplug slot - %d\n", ret);
+                goto error_register;
+        }
+
+        return 0;
+
+error_register:
+        kfree(ehotk->hotplug_slot->info);
+error_info:
+        kfree(ehotk->hotplug_slot);
+        ehotk->hotplug_slot = NULL;
+error_slot:
+        return ret;
+}
+
 static int eeepc_hotk_add(struct acpi_device *device)
 {
         int result;
 
         if (!device)
                  return -EINVAL;
-        printk(EEEPC_NOTICE EEEPC_HOTK_NAME "\n");
+        pr_notice(EEEPC_HOTK_NAME "\n");
         ehotk = kzalloc(sizeof(struct eeepc_hotk), GFP_KERNEL);
         if (!ehotk)
                 return -ENOMEM;
@@ -764,53 +859,8 @@ static int eeepc_hotk_add(struct acpi_device *device)
         if (result)
                 goto ehotk_fail;
 
-        eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P6");
-        eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P7");
-
-        if (get_acpi(CM_ASL_WLAN) != -1) {
-                ehotk->eeepc_wlan_rfkill = rfkill_alloc("eeepc-wlan",
-                                                        &device->dev,
-                                                        RFKILL_TYPE_WLAN,
-                                                        &eeepc_rfkill_ops,
-                                                        (void *)CM_ASL_WLAN);
-
-                if (!ehotk->eeepc_wlan_rfkill)
-                        goto wlan_fail;
-
-                rfkill_init_sw_state(ehotk->eeepc_wlan_rfkill,
-                                     get_acpi(CM_ASL_WLAN) != 1);
-                result = rfkill_register(ehotk->eeepc_wlan_rfkill);
-                if (result)
-                        goto wlan_fail;
-        }
-
-        if (get_acpi(CM_ASL_BLUETOOTH) != -1) {
-                ehotk->eeepc_bluetooth_rfkill =
-                        rfkill_alloc("eeepc-bluetooth",
-                                     &device->dev,
-                                     RFKILL_TYPE_BLUETOOTH,
-                                     &eeepc_rfkill_ops,
-                                     (void *)CM_ASL_BLUETOOTH);
-
-                if (!ehotk->eeepc_bluetooth_rfkill)
-                        goto bluetooth_fail;
-
-                rfkill_init_sw_state(ehotk->eeepc_bluetooth_rfkill,
-                                     get_acpi(CM_ASL_BLUETOOTH) != 1);
-                result = rfkill_register(ehotk->eeepc_bluetooth_rfkill);
-                if (result)
-                        goto bluetooth_fail;
-        }
-
         return 0;
 
- bluetooth_fail:
-        rfkill_destroy(ehotk->eeepc_bluetooth_rfkill);
-        rfkill_unregister(ehotk->eeepc_wlan_rfkill);
- wlan_fail:
-        rfkill_destroy(ehotk->eeepc_wlan_rfkill);
-        eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6");
-        eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7");
  ehotk_fail:
         kfree(ehotk);
         ehotk = NULL;
@@ -823,16 +873,13 @@ static int eeepc_hotk_remove(struct acpi_device *device, int type)
         if (!device || !acpi_driver_data(device))
                  return -EINVAL;
 
-        eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6");
-        eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7");
-
         kfree(ehotk);
         return 0;
 }
 
 static int eeepc_hotk_resume(struct acpi_device *device)
 {
-        if (ehotk->eeepc_wlan_rfkill) {
+        if (ehotk->wlan_rfkill) {
                 bool wlan;
 
                 /* Workaround - it seems that _PTS disables the wireless
@@ -844,14 +891,13 @@ static int eeepc_hotk_resume(struct acpi_device *device)
                 wlan = get_acpi(CM_ASL_WLAN);
                 set_acpi(CM_ASL_WLAN, wlan);
 
-                rfkill_set_sw_state(ehotk->eeepc_wlan_rfkill,
-                                    wlan != 1);
+                rfkill_set_sw_state(ehotk->wlan_rfkill, wlan != 1);
 
-                eeepc_rfkill_hotplug();
+                schedule_work(&ehotk->hotplug_work);
         }
 
-        if (ehotk->eeepc_bluetooth_rfkill)
-                rfkill_set_sw_state(ehotk->eeepc_bluetooth_rfkill,
+        if (ehotk->bluetooth_rfkill)
+                rfkill_set_sw_state(ehotk->bluetooth_rfkill,
                                     get_acpi(CM_ASL_BLUETOOTH) != 1);
 
         return 0;
@@ -973,10 +1019,16 @@ static void eeepc_backlight_exit(void)
 
 static void eeepc_rfkill_exit(void)
 {
-        if (ehotk->eeepc_wlan_rfkill)
-                rfkill_unregister(ehotk->eeepc_wlan_rfkill);
-        if (ehotk->eeepc_bluetooth_rfkill)
-                rfkill_unregister(ehotk->eeepc_bluetooth_rfkill);
+        eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6");
+        eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7");
+        if (ehotk->wlan_rfkill)
+                rfkill_unregister(ehotk->wlan_rfkill);
+        if (ehotk->bluetooth_rfkill)
+                rfkill_unregister(ehotk->bluetooth_rfkill);
+        if (ehotk->wwan3g_rfkill)
+                rfkill_unregister(ehotk->wwan3g_rfkill);
+        if (ehotk->hotplug_slot)
+                pci_hp_deregister(ehotk->hotplug_slot);
 }
 
 static void eeepc_input_exit(void)
@@ -1011,6 +1063,77 @@ static void __exit eeepc_laptop_exit(void)
         platform_driver_unregister(&platform_driver);
 }
 
+static int eeepc_new_rfkill(struct rfkill **rfkill,
+                            const char *name, struct device *dev,
+                            enum rfkill_type type, int cm)
+{
+        int result;
+
+        result = get_acpi(cm);
+        if (result < 0)
+                return result;
+
+        *rfkill = rfkill_alloc(name, dev, type,
+                               &eeepc_rfkill_ops, (void *)(unsigned long)cm);
+
+        if (!*rfkill)
+                return -EINVAL;
+
+        rfkill_init_sw_state(*rfkill, get_acpi(cm) != 1);
+        result = rfkill_register(*rfkill);
+        if (result) {
+                rfkill_destroy(*rfkill);
+                *rfkill = NULL;
+                return result;
+        }
+        return 0;
+}
+
+
+static int eeepc_rfkill_init(struct device *dev)
+{
+        int result = 0;
+
+        INIT_WORK(&ehotk->hotplug_work, eeepc_hotplug_work);
+
+        eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P6");
+        eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P7");
+
+        result = eeepc_new_rfkill(&ehotk->wlan_rfkill,
+                                  "eeepc-wlan", dev,
+                                  RFKILL_TYPE_WLAN, CM_ASL_WLAN);
+
+        if (result && result != -ENODEV)
+                goto exit;
+
+        result = eeepc_new_rfkill(&ehotk->bluetooth_rfkill,
+                                  "eeepc-bluetooth", dev,
+                                  RFKILL_TYPE_BLUETOOTH, CM_ASL_BLUETOOTH);
+
+        if (result && result != -ENODEV)
+                goto exit;
+
+        result = eeepc_new_rfkill(&ehotk->wwan3g_rfkill,
+                                  "eeepc-wwan3g", dev,
+                                  RFKILL_TYPE_WWAN, CM_ASL_3G);
+
+        if (result && result != -ENODEV)
+                goto exit;
+
+        result = eeepc_setup_pci_hotplug();
+        /*
+         * If we get -EBUSY then something else is handling the PCI hotplug -
+         * don't fail in this case
+         */
+        if (result == -EBUSY)
+                result = 0;
+
+exit:
+        if (result && result != -ENODEV)
+                eeepc_rfkill_exit();
+        return result;
+}
+
 static int eeepc_backlight_init(struct device *dev)
 {
         struct backlight_device *bd;
@@ -1018,8 +1141,7 @@ static int eeepc_backlight_init(struct device *dev)
         bd = backlight_device_register(EEEPC_HOTK_FILE, dev,
                                        NULL, &eeepcbl_ops);
         if (IS_ERR(bd)) {
-                printk(EEEPC_ERR
-                       "Could not register eeepc backlight device\n");
+                pr_err("Could not register eeepc backlight device\n");
                 eeepc_backlight_device = NULL;
                 return PTR_ERR(bd);
         }
@@ -1038,8 +1160,7 @@ static int eeepc_hwmon_init(struct device *dev)
 
         hwmon = hwmon_device_register(dev);
         if (IS_ERR(hwmon)) {
-                printk(EEEPC_ERR
-                       "Could not register eeepc hwmon device\n");
+                pr_err("Could not register eeepc hwmon device\n");
                 eeepc_hwmon_device = NULL;
                 return PTR_ERR(hwmon);
         }
@@ -1065,19 +1186,6 @@ static int __init eeepc_laptop_init(void)
                 acpi_bus_unregister_driver(&eeepc_hotk_driver);
                 return -ENODEV;
         }
-        dev = acpi_get_physical_device(ehotk->device->handle);
-
-        if (!acpi_video_backlight_support()) {
-                result = eeepc_backlight_init(dev);
-                if (result)
-                        goto fail_backlight;
-        } else
-                printk(EEEPC_INFO "Backlight controlled by ACPI video "
-                       "driver\n");
-
-        result = eeepc_hwmon_init(dev);
-        if (result)
-                goto fail_hwmon;
 
         eeepc_enable_camera();
 
@@ -1097,7 +1205,33 @@ static int __init eeepc_laptop_init(void)
                                     &platform_attribute_group);
         if (result)
                 goto fail_sysfs;
+
+        dev = &platform_device->dev;
+
+        if (!acpi_video_backlight_support()) {
+                result = eeepc_backlight_init(dev);
+                if (result)
+                        goto fail_backlight;
+        } else
+                pr_info("Backlight controlled by ACPI video "
+                        "driver\n");
+
+        result = eeepc_hwmon_init(dev);
+        if (result)
+                goto fail_hwmon;
+
+        result = eeepc_rfkill_init(dev);
+        if (result)
+                goto fail_rfkill;
+
         return 0;
+fail_rfkill:
+        eeepc_hwmon_exit();
+fail_hwmon:
+        eeepc_backlight_exit();
+fail_backlight:
+        sysfs_remove_group(&platform_device->dev.kobj,
+                           &platform_attribute_group);
 fail_sysfs:
         platform_device_del(platform_device);
 fail_platform_device2:
@@ -1105,12 +1239,7 @@ fail_platform_device2:
 fail_platform_device1:
         platform_driver_unregister(&platform_driver);
 fail_platform_driver:
-        eeepc_hwmon_exit();
-fail_hwmon:
-        eeepc_backlight_exit();
-fail_backlight:
         eeepc_input_exit();
-        eeepc_rfkill_exit();
         return result;
 }
 
diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 4ac2311c00af..a2ad53e15874 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -171,7 +171,7 @@ static int hp_wmi_tablet_state(void)
 static int hp_wmi_set_block(void *data, bool blocked)
 {
         unsigned long b = (unsigned long) data;
-        int query = BIT(b + 8) | ((!!blocked) << b);
+        int query = BIT(b + 8) | ((!blocked) << b);
 
         return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, query);
 }
@@ -520,11 +520,13 @@ static int hp_wmi_resume_handler(struct platform_device *device)
          * the input layer will only actually pass it on if the state
          * changed.
          */
-
-        input_report_switch(hp_wmi_input_dev, SW_DOCK, hp_wmi_dock_state());
-        input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
-                            hp_wmi_tablet_state());
-        input_sync(hp_wmi_input_dev);
+        if (hp_wmi_input_dev) {
+                input_report_switch(hp_wmi_input_dev, SW_DOCK,
+                                    hp_wmi_dock_state());
+                input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
+                                    hp_wmi_tablet_state());
+                input_sync(hp_wmi_input_dev);
+        }
 
         return 0;
 }
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index a463fd72c495..e85600852502 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -239,12 +239,6 @@ struct ibm_init_struct {
 };
 
 static struct {
-#ifdef CONFIG_THINKPAD_ACPI_BAY
-        u32 bay_status:1;
-        u32 bay_eject:1;
-        u32 bay_status2:1;
-        u32 bay_eject2:1;
-#endif
         u32 bluetooth:1;
         u32 hotkey:1;
         u32 hotkey_mask:1;
@@ -589,18 +583,6 @@ static int acpi_ec_write(int i, u8 v)
         return 1;
 }
 
-#if defined(CONFIG_THINKPAD_ACPI_DOCK) || defined(CONFIG_THINKPAD_ACPI_BAY)
-static int _sta(acpi_handle handle)
-{
-        int status;
-
-        if (!handle || !acpi_evalf(handle, &status, "_STA", "d"))
-                status = 0;
-
-        return status;
-}
-#endif
-
 static int issue_thinkpad_cmos_command(int cmos_cmd)
 {
         if (!cmos_handle)
@@ -784,6 +766,8 @@ static int dispatch_procfs_write(struct file *file,
 
         if (!ibm || !ibm->write)
                 return -EINVAL;
+        if (count > PAGE_SIZE - 2)
+                return -EINVAL;
 
         kernbuf = kmalloc(count + 2, GFP_KERNEL);
         if (!kernbuf)
@@ -4442,293 +4426,6 @@ static struct ibm_struct light_driver_data = {
 };
 
 /*************************************************************************
- * Dock subdriver
- */
-
-#ifdef CONFIG_THINKPAD_ACPI_DOCK
-
-static void dock_notify(struct ibm_struct *ibm, u32 event);
-static int dock_read(char *p);
-static int dock_write(char *buf);
-
-TPACPI_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */
-           "\\_SB.PCI0.DOCK",   /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */
-           "\\_SB.PCI0.PCI1.DOCK",      /* all others */
-           "\\_SB.PCI.ISA.SLCE",        /* 570 */
-    );                          /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */
-
-/* don't list other alternatives as we install a notify handler on the 570 */
-TPACPI_HANDLE(pci, root, "\\_SB.PCI");  /* 570 */
-
-static const struct acpi_device_id ibm_pci_device_ids[] = {
-        {PCI_ROOT_HID_STRING, 0},
-        {"", 0},
-};
-
-static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = {
-        {
-         .notify = dock_notify,
-         .handle = &dock_handle,
-         .type = ACPI_SYSTEM_NOTIFY,
-        },
-        {
-        /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING.
-         * We just use it to get notifications of dock hotplug
-         * in very old thinkpads */
-         .hid = ibm_pci_device_ids,
-         .notify = dock_notify,
-         .handle = &pci_handle,
-         .type = ACPI_SYSTEM_NOTIFY,
-        },
-};
-
-static struct ibm_struct dock_driver_data[2] = {
-        {
-         .name = "dock",
-         .read = dock_read,
-         .write = dock_write,
-         .acpi = &ibm_dock_acpidriver[0],
-        },
-        {
-         .name = "dock",
-         .acpi = &ibm_dock_acpidriver[1],
-        },
-};
-
-#define dock_docked() (_sta(dock_handle) & 1)
-
-static int __init dock_init(struct ibm_init_struct *iibm)
-{
-        vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n");
-
-        TPACPI_ACPIHANDLE_INIT(dock);
-
-        vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n",
-                str_supported(dock_handle != NULL));
-
-        return (dock_handle)? 0 : 1;
-}
-
-static int __init dock_init2(struct ibm_init_struct *iibm)
-{
-        int dock2_needed;
-
-        vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n");
-
-        if (dock_driver_data[0].flags.acpi_driver_registered &&
-            dock_driver_data[0].flags.acpi_notify_installed) {
-                TPACPI_ACPIHANDLE_INIT(pci);
-                dock2_needed = (pci_handle != NULL);
-                vdbg_printk(TPACPI_DBG_INIT,
-                            "dock PCI handler for the TP 570 is %s\n",
-                            str_supported(dock2_needed));
-        } else {
-                vdbg_printk(TPACPI_DBG_INIT,
-                "dock subdriver part 2 not required\n");
-                dock2_needed = 0;
-        }
-
-        return (dock2_needed)? 0 : 1;
-}
-
-static void dock_notify(struct ibm_struct *ibm, u32 event)
-{
-        int docked = dock_docked();
-        int pci = ibm->acpi->hid && ibm->acpi->device &&
-                acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids);
-        int data;
-
-        if (event == 1 && !pci) /* 570 */
-                data = 1;       /* button */
-        else if (event == 1 && pci)     /* 570 */
-                data = 3;       /* dock */
-        else if (event == 3 && docked)
-                data = 1;       /* button */
-        else if (event == 3 && !docked)
-                data = 2;       /* undock */
-        else if (event == 0 && docked)
-                data = 3;       /* dock */
-        else {
-                printk(TPACPI_ERR "unknown dock event %d, status %d\n",
-                       event, _sta(dock_handle));
-                data = 0;       /* unknown */
-        }
-        acpi_bus_generate_proc_event(ibm->acpi->device, event, data);
-        acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
-                                          dev_name(&ibm->acpi->device->dev),
-                                          event, data);
-}
-
-static int dock_read(char *p)
-{
-        int len = 0;
-        int docked = dock_docked();
-
-        if (!dock_handle)
-                len += sprintf(p + len, "status:\t\tnot supported\n");
-        else if (!docked)
-                len += sprintf(p + len, "status:\t\tundocked\n");
-        else {
-                len += sprintf(p + len, "status:\t\tdocked\n");
-                len += sprintf(p + len, "commands:\tdock, undock\n");
-        }
-
-        return len;
-}
-
-static int dock_write(char *buf)
-{
-        char *cmd;
-
-        if (!dock_docked())
-                return -ENODEV;
-
-        while ((cmd = next_cmd(&buf))) {
-                if (strlencmp(cmd, "undock") == 0) {
-                        if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) ||
-                            !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1))
-                                return -EIO;
-                } else if (strlencmp(cmd, "dock") == 0) {
-                        if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1))
-                                return -EIO;
-                } else
-                        return -EINVAL;
-        }
-
-        return 0;
-}
-
-#endif /* CONFIG_THINKPAD_ACPI_DOCK */
-
-/*************************************************************************
- * Bay subdriver
- */
-
-#ifdef CONFIG_THINKPAD_ACPI_BAY
-
-TPACPI_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST",     /* 570 */
-           "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */
-           "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */
-           "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */
-           );                           /* A21e, R30, R31 */
-TPACPI_HANDLE(bay_ej, bay, "_EJ3",      /* 600e/x, A2xm/p, A3x */
-           "_EJ0",              /* all others */
-           );                   /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */
-TPACPI_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV",  /* A3x, R32 */
-           "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */
-           );                           /* all others */
-TPACPI_HANDLE(bay2_ej, bay2, "_EJ3",    /* 600e/x, 770e, A3x */
-           "_EJ0",                      /* 770x */
-           );                           /* all others */
-
-static int __init bay_init(struct ibm_init_struct *iibm)
-{
-        vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n");
-
-        TPACPI_ACPIHANDLE_INIT(bay);
-        if (bay_handle)
-                TPACPI_ACPIHANDLE_INIT(bay_ej);
-        TPACPI_ACPIHANDLE_INIT(bay2);
-        if (bay2_handle)
-                TPACPI_ACPIHANDLE_INIT(bay2_ej);
-
-        tp_features.bay_status = bay_handle &&
-                acpi_evalf(bay_handle, NULL, "_STA", "qv");
-        tp_features.bay_status2 = bay2_handle &&
-                acpi_evalf(bay2_handle, NULL, "_STA", "qv");
-
-        tp_features.bay_eject = bay_handle && bay_ej_handle &&
-                (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental);
-        tp_features.bay_eject2 = bay2_handle && bay2_ej_handle &&
-                (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental);
-
-        vdbg_printk(TPACPI_DBG_INIT,
-                "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n",
-                str_supported(tp_features.bay_status),
-                str_supported(tp_features.bay_eject),
-                str_supported(tp_features.bay_status2),
-                str_supported(tp_features.bay_eject2));
-
-        return (tp_features.bay_status || tp_features.bay_eject ||
-                tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1;
-}
-
-static void bay_notify(struct ibm_struct *ibm, u32 event)
-{
-        acpi_bus_generate_proc_event(ibm->acpi->device, event, 0);
-        acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
-                                          dev_name(&ibm->acpi->device->dev),
-                                          event, 0);
-}
-
-#define bay_occupied(b) (_sta(b##_handle) & 1)
-
-static int bay_read(char *p)
-{
-        int len = 0;
-        int occupied = bay_occupied(bay);
-        int occupied2 = bay_occupied(bay2);
-        int eject, eject2;
-
-        len += sprintf(p + len, "status:\t\t%s\n",
-                tp_features.bay_status ?
-                        (occupied ? "occupied" : "unoccupied") :
-                                "not supported");
-        if (tp_features.bay_status2)
-                len += sprintf(p + len, "status2:\t%s\n", occupied2 ?
-                               "occupied" : "unoccupied");
-
-        eject = tp_features.bay_eject && occupied;
-        eject2 = tp_features.bay_eject2 && occupied2;
-
-        if (eject && eject2)
-                len += sprintf(p + len, "commands:\teject, eject2\n");
-        else if (eject)
-                len += sprintf(p + len, "commands:\teject\n");
-        else if (eject2)
-                len += sprintf(p + len, "commands:\teject2\n");
-
-        return len;
-}
-
-static int bay_write(char *buf)
-{
-        char *cmd;
-
-        if (!tp_features.bay_eject && !tp_features.bay_eject2)
-                return -ENODEV;
-
-        while ((cmd = next_cmd(&buf))) {
-                if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) {
-                        if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1))
-                                return -EIO;
-                } else if (tp_features.bay_eject2 &&
-                           strlencmp(cmd, "eject2") == 0) {
-                        if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1))
-                                return -EIO;
-                } else
-                        return -EINVAL;
-        }
-
-        return 0;
-}
-
-static struct tp_acpi_drv_struct ibm_bay_acpidriver = {
-        .notify = bay_notify,
-        .handle = &bay_handle,
-        .type = ACPI_SYSTEM_NOTIFY,
-};
-
-static struct ibm_struct bay_driver_data = {
-        .name = "bay",
-        .read = bay_read,
-        .write = bay_write,
-        .acpi = &ibm_bay_acpidriver,
-};
-
-#endif /* CONFIG_THINKPAD_ACPI_BAY */
-
-/*************************************************************************
  * CMOS subdriver
  */
 
@@ -5945,14 +5642,48 @@ static struct backlight_ops ibm_backlight_data = {
 
 /* --------------------------------------------------------------------- */
 
+/*
+ * These are only useful for models that have only one possibility
+ * of GPU.  If the BIOS model handles both ATI and Intel, don't use
+ * these quirks.
+ */
+#define TPACPI_BRGHT_Q_NOEC     0x0001  /* Must NOT use EC HBRV */
+#define TPACPI_BRGHT_Q_EC       0x0002  /* Should or must use EC HBRV */
+#define TPACPI_BRGHT_Q_ASK      0x8000  /* Ask for user report */
+
+static const struct tpacpi_quirk brightness_quirk_table[] __initconst = {
+        /* Models with ATI GPUs known to require ECNVRAM mode */
+        TPACPI_Q_IBM('1', 'Y', TPACPI_BRGHT_Q_EC),      /* T43/p ATI */
+
+        /* Models with ATI GPUs (waiting confirmation) */
+        TPACPI_Q_IBM('1', 'R', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC),
+        TPACPI_Q_IBM('1', 'Q', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC),
+        TPACPI_Q_IBM('7', '6', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC),
+        TPACPI_Q_IBM('7', '8', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC),
+
+        /* Models with Intel Extreme Graphics 2 (waiting confirmation) */
+        TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_NOEC),
+        TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_NOEC),
+        TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_NOEC),
+
+        /* Models with Intel GMA900 */
+        TPACPI_Q_IBM('7', '0', TPACPI_BRGHT_Q_NOEC),    /* T43, R52 */
+        TPACPI_Q_IBM('7', '4', TPACPI_BRGHT_Q_NOEC),    /* X41 */
+        TPACPI_Q_IBM('7', '5', TPACPI_BRGHT_Q_NOEC),    /* X41 Tablet */
+};
+
 static int __init brightness_init(struct ibm_init_struct *iibm)
 {
         int b;
+        unsigned long quirks;
 
         vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n");
 
         mutex_init(&brightness_mutex);
 
+        quirks = tpacpi_check_quirks(brightness_quirk_table,
+                                ARRAY_SIZE(brightness_quirk_table));
+
         /*
          * We always attempt to detect acpi support, so as to switch
          * Lenovo Vista BIOS to ACPI brightness mode even if we are not
@@ -6009,23 +5740,13 @@ static int __init brightness_init(struct ibm_init_struct *iibm)
         /* TPACPI_BRGHT_MODE_AUTO not implemented yet, just use default */
         if (brightness_mode == TPACPI_BRGHT_MODE_AUTO ||
             brightness_mode == TPACPI_BRGHT_MODE_MAX) {
-                if (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) {
-                        /*
-                         * IBM models that define HBRV probably have
-                         * EC-based backlight level control
-                         */
-                        if (acpi_evalf(ec_handle, NULL, "HBRV", "qd"))
-                                /* T40-T43, R50-R52, R50e, R51e, X31-X41 */
-                                brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM;
-                        else
-                                /* all other IBM ThinkPads */
-                                brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP;
-                } else
-                        /* All Lenovo ThinkPads */
+                if (quirks & TPACPI_BRGHT_Q_EC)
+                        brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM;
+                else
                         brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP;
 
                 dbg_printk(TPACPI_DBG_BRGHT,
-                           "selected brightness_mode=%d\n",
+                           "driver auto-selected brightness_mode=%d\n",
                            brightness_mode);
         }
 
@@ -6052,6 +5773,15 @@ static int __init brightness_init(struct ibm_init_struct *iibm)
         vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT,
                         "brightness is supported\n");
 
+        if (quirks & TPACPI_BRGHT_Q_ASK) {
+                printk(TPACPI_NOTICE
+                        "brightness: will use unverified default: "
+                        "brightness_mode=%d\n", brightness_mode);
+                printk(TPACPI_NOTICE
+                        "brightness: please report to %s whether it works well "
+                        "or not on your ThinkPad\n", TPACPI_MAIL);
+        }
+
         ibm_backlight_device->props.max_brightness =
                                 (tp_features.bright_16levels)? 15 : 7;
         ibm_backlight_device->props.brightness = b & TP_EC_BACKLIGHT_LVLMSK;
@@ -7854,22 +7584,6 @@ static struct ibm_init_struct ibms_init[] __initdata = {
                 .init = light_init,
                 .data = &light_driver_data,
         },
-#ifdef CONFIG_THINKPAD_ACPI_DOCK
-        {
-                .init = dock_init,
-                .data = &dock_driver_data[0],
-        },
-        {
-                .init = dock_init2,
-                .data = &dock_driver_data[1],
-        },
-#endif
-#ifdef CONFIG_THINKPAD_ACPI_BAY
-        {
-                .init = bay_init,
-                .data = &bay_driver_data,
-        },
-#endif
         {
                 .init = cmos_init,
                 .data = &cmos_driver_data,
@@ -7968,12 +7682,6 @@ TPACPI_PARAM(hotkey);
 TPACPI_PARAM(bluetooth);
 TPACPI_PARAM(video);
 TPACPI_PARAM(light);
-#ifdef CONFIG_THINKPAD_ACPI_DOCK
-TPACPI_PARAM(dock);
-#endif
-#ifdef CONFIG_THINKPAD_ACPI_BAY
-TPACPI_PARAM(bay);
-#endif /* CONFIG_THINKPAD_ACPI_BAY */
 TPACPI_PARAM(cmos);
 TPACPI_PARAM(led);
 TPACPI_PARAM(beep);
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 7eda34838bfe..bdbc4f73fcdc 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -43,6 +43,13 @@ config BATTERY_DS2760
         help
           Say Y here to enable support for batteries with ds2760 chip.
 
+config BATTERY_DS2782
+        tristate "DS2782 standalone gas-gauge"
+        depends on I2C
+        help
+          Say Y here to enable support for the DS2782 standalone battery
+          gas-gauge.
+
 config BATTERY_PMU
         tristate "Apple PMU battery"
         depends on PPC32 && ADB_PMU
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index daf3179689aa..380d17c9ae29 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_APM_POWER)		+= apm_power.o
 obj-$(CONFIG_WM8350_POWER)      += wm8350_power.o
 
 obj-$(CONFIG_BATTERY_DS2760)    += ds2760_battery.o
+obj-$(CONFIG_BATTERY_DS2782)    += ds2782_battery.o
 obj-$(CONFIG_BATTERY_PMU)       += pmu_battery.o
 obj-$(CONFIG_BATTERY_OLPC)      += olpc_battery.o
 obj-$(CONFIG_BATTERY_TOSA)      += tosa_battery.o
diff --git a/drivers/power/ds2782_battery.c b/drivers/power/ds2782_battery.c
new file mode 100644
index 000000000000..da14f374cb60
--- /dev/null
+++ b/drivers/power/ds2782_battery.c
@@ -0,0 +1,330 @@
+/*
+ * I2C client/driver for the Maxim/Dallas DS2782 Stand-Alone Fuel Gauge IC
+ *
+ * Copyright (C) 2009 Bluewater Systems Ltd
+ *
+ * Author: Ryan Mallon <ryan@bluewatersys.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/swab.h>
+#include <linux/i2c.h>
+#include <linux/idr.h>
+#include <linux/power_supply.h>
+
+#define DS2782_REG_RARC         0x06    /* Remaining active relative capacity */
+
+#define DS2782_REG_VOLT_MSB     0x0c
+#define DS2782_REG_TEMP_MSB     0x0a
+#define DS2782_REG_CURRENT_MSB  0x0e
+
+/* EEPROM Block */
+#define DS2782_REG_RSNSP        0x69    /* Sense resistor value */
+
+/* Current unit measurement in uA for a 1 milli-ohm sense resistor */
+#define DS2782_CURRENT_UNITS    1563
+
+#define to_ds2782_info(x) container_of(x, struct ds2782_info, battery)
+
+struct ds2782_info {
+        struct i2c_client       *client;
+        struct power_supply     battery;
+        int                     id;
+};
+
+static DEFINE_IDR(battery_id);
+static DEFINE_MUTEX(battery_lock);
+
+static inline int ds2782_read_reg(struct ds2782_info *info, int reg, u8 *val)
+{
+        int ret;
+
+        ret = i2c_smbus_read_byte_data(info->client, reg);
+        if (ret < 0) {
+                dev_err(&info->client->dev, "register read failed\n");
+                return ret;
+        }
+
+        *val = ret;
+        return 0;
+}
+
+static inline int ds2782_read_reg16(struct ds2782_info *info, int reg_msb,
+                                    s16 *val)
+{
+        int ret;
+
+        ret = swab16(i2c_smbus_read_word_data(info->client, reg_msb));
+        if (ret < 0) {
+                dev_err(&info->client->dev, "register read failed\n");
+                return ret;
+        }
+
+        *val = ret;
+        return 0;
+}
+
+static int ds2782_get_temp(struct ds2782_info *info, int *temp)
+{
+        s16 raw;
+        int err;
+
+        /*
+         * Temperature is measured in units of 0.125 degrees celcius, the
+         * power_supply class measures temperature in tenths of degrees
+         * celsius. The temperature value is stored as a 10 bit number, plus
+         * sign in the upper bits of a 16 bit register.
+         */
+        err = ds2782_read_reg16(info, DS2782_REG_TEMP_MSB, &raw);
+        if (err)
+                return err;
+        *temp = ((raw / 32) * 125) / 100;
+        return 0;
+}
+
+static int ds2782_get_current(struct ds2782_info *info, int *current_uA)
+{
+        int sense_res;
+        int err;
+        u8 sense_res_raw;
+        s16 raw;
+
+        /*
+         * The units of measurement for current are dependent on the value of
+         * the sense resistor.
+         */
+        err = ds2782_read_reg(info, DS2782_REG_RSNSP, &sense_res_raw);
+        if (err)
+                return err;
+        if (sense_res_raw == 0) {
+                dev_err(&info->client->dev, "sense resistor value is 0\n");
+                return -ENXIO;
+        }
+        sense_res = 1000 / sense_res_raw;
+
+        dev_dbg(&info->client->dev, "sense resistor = %d milli-ohms\n",
+                sense_res);
+        err = ds2782_read_reg16(info, DS2782_REG_CURRENT_MSB, &raw);
+        if (err)
+                return err;
+        *current_uA = raw * (DS2782_CURRENT_UNITS / sense_res);
+        return 0;
+}
+
+static int ds2782_get_voltage(struct ds2782_info *info, int *voltage_uA)
+{
+        s16 raw;
+        int err;
+
+        /*
+         * Voltage is measured in units of 4.88mV. The voltage is stored as
+         * a 10-bit number plus sign, in the upper bits of a 16-bit register
+         */
+        err = ds2782_read_reg16(info, DS2782_REG_VOLT_MSB, &raw);
+        if (err)
+                return err;
+        *voltage_uA = (raw / 32) * 4800;
+        return 0;
+}
+
+static int ds2782_get_capacity(struct ds2782_info *info, int *capacity)
+{
+        int err;
+        u8 raw;
+
+        err = ds2782_read_reg(info, DS2782_REG_RARC, &raw);
+        if (err)
+                return err;
+        *capacity = raw;
+        return raw;
+}
+
+static int ds2782_get_status(struct ds2782_info *info, int *status)
+{
+        int err;
+        int current_uA;
+        int capacity;
+
+        err = ds2782_get_current(info, &current_uA);
+        if (err)
+                return err;
+
+        err = ds2782_get_capacity(info, &capacity);
+        if (err)
+                return err;
+
+        if (capacity == 100)
+                *status = POWER_SUPPLY_STATUS_FULL;
+        else if (current_uA == 0)
+                *status = POWER_SUPPLY_STATUS_NOT_CHARGING;
+        else if (current_uA < 0)
+                *status = POWER_SUPPLY_STATUS_DISCHARGING;
+        else
+                *status = POWER_SUPPLY_STATUS_CHARGING;
+
+        return 0;
+}
+
+static int ds2782_battery_get_property(struct power_supply *psy,
+                                       enum power_supply_property prop,
+                                       union power_supply_propval *val)
+{
+        struct ds2782_info *info = to_ds2782_info(psy);
+        int ret;
+
+        switch (prop) {
+        case POWER_SUPPLY_PROP_STATUS:
+                ret = ds2782_get_status(info, &val->intval);
+                break;
+
+        case POWER_SUPPLY_PROP_CAPACITY:
+                ret = ds2782_get_capacity(info, &val->intval);
+                break;
+
+        case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+                ret = ds2782_get_voltage(info, &val->intval);
+                break;
+
+        case POWER_SUPPLY_PROP_CURRENT_NOW:
+                ret = ds2782_get_current(info, &val->intval);
+                break;
+
+        case POWER_SUPPLY_PROP_TEMP:
+                ret = ds2782_get_temp(info, &val->intval);
+                break;
+
+        default:
+                ret = -EINVAL;
+        }
+
+        return ret;
+}
+
+static enum power_supply_property ds2782_battery_props[] = {
+        POWER_SUPPLY_PROP_STATUS,
+        POWER_SUPPLY_PROP_CAPACITY,
+        POWER_SUPPLY_PROP_VOLTAGE_NOW,
+        POWER_SUPPLY_PROP_CURRENT_NOW,
+        POWER_SUPPLY_PROP_TEMP,
+};
+
+static void ds2782_power_supply_init(struct power_supply *battery)
+{
+        battery->type                   = POWER_SUPPLY_TYPE_BATTERY;
+        battery->properties             = ds2782_battery_props;
+        battery->num_properties         = ARRAY_SIZE(ds2782_battery_props);
+        battery->get_property           = ds2782_battery_get_property;
+        battery->external_power_changed = NULL;
+}
+
+static int ds2782_battery_remove(struct i2c_client *client)
+{
+        struct ds2782_info *info = i2c_get_clientdata(client);
+
+        power_supply_unregister(&info->battery);
+        kfree(info->battery.name);
+
+        mutex_lock(&battery_lock);
+        idr_remove(&battery_id, info->id);
+        mutex_unlock(&battery_lock);
+
+        i2c_set_clientdata(client, info);
+
+        kfree(info);
+        return 0;
+}
+
+static int ds2782_battery_probe(struct i2c_client *client,
+                                const struct i2c_device_id *id)
+{
+        struct ds2782_info *info;
+        int ret;
+        int num;
+
+        /* Get an ID for this battery */
+        ret = idr_pre_get(&battery_id, GFP_KERNEL);
+        if (ret == 0) {
+                ret = -ENOMEM;
+                goto fail_id;
+        }
+
+        mutex_lock(&battery_lock);
+        ret = idr_get_new(&battery_id, client, &num);
+        mutex_unlock(&battery_lock);
+        if (ret < 0)
+                goto fail_id;
+
+        info = kzalloc(sizeof(*info), GFP_KERNEL);
+        if (!info) {
+                ret = -ENOMEM;
+                goto fail_info;
+        }
+
+        info->battery.name = kasprintf(GFP_KERNEL, "ds2782-%d", num);
+        if (!info->battery.name) {
+                ret = -ENOMEM;
+                goto fail_name;
+        }
+
+        i2c_set_clientdata(client, info);
+        info->client = client;
+        ds2782_power_supply_init(&info->battery);
+
+        ret = power_supply_register(&client->dev, &info->battery);
+        if (ret) {
+                dev_err(&client->dev, "failed to register battery\n");
+                goto fail_register;
+        }
+
+        return 0;
+
+fail_register:
+        kfree(info->battery.name);
+fail_name:
+        i2c_set_clientdata(client, info);
+        kfree(info);
+fail_info:
+        mutex_lock(&battery_lock);
+        idr_remove(&battery_id, num);
+        mutex_unlock(&battery_lock);
+fail_id:
+        return ret;
+}
+
+static const struct i2c_device_id ds2782_id[] = {
+        {"ds2782", 0},
+        {},
+};
+
+static struct i2c_driver ds2782_battery_driver = {
+        .driver         = {
+                .name   = "ds2782-battery",
+        },
+        .probe          = ds2782_battery_probe,
+        .remove         = ds2782_battery_remove,
+        .id_table       = ds2782_id,
+};
+
+static int __init ds2782_init(void)
+{
+        return i2c_add_driver(&ds2782_battery_driver);
+}
+module_init(ds2782_init);
+
+static void __exit ds2782_exit(void)
+{
+        i2c_del_driver(&ds2782_battery_driver);
+}
+module_exit(ds2782_exit);
+
+MODULE_AUTHOR("Ryan Mallon <ryan@bluewatersys.com>");
+MODULE_DESCRIPTION("Maxim/Dallas DS2782 Stand-Alone Fuel Gauage IC driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/power/olpc_battery.c b/drivers/power/olpc_battery.c
index 5fbca2681baa..58e419299cd6 100644
--- a/drivers/power/olpc_battery.c
+++ b/drivers/power/olpc_battery.c
@@ -8,6 +8,7 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/err.h>
 #include <linux/platform_device.h>
@@ -35,6 +36,7 @@
 #define BAT_STAT_AC             0x10
 #define BAT_STAT_CHARGING       0x20
 #define BAT_STAT_DISCHARGING    0x40
+#define BAT_STAT_TRICKLE        0x80
 
 #define BAT_ERR_INFOFAIL        0x02
 #define BAT_ERR_OVERVOLTAGE     0x04
@@ -89,7 +91,7 @@ static char bat_serial[17]; /* Ick */
 static int olpc_bat_get_status(union power_supply_propval *val, uint8_t ec_byte)
 {
         if (olpc_platform_info.ecver > 0x44) {
-                if (ec_byte & BAT_STAT_CHARGING)
+                if (ec_byte & (BAT_STAT_CHARGING | BAT_STAT_TRICKLE))
                         val->intval = POWER_SUPPLY_STATUS_CHARGING;
                 else if (ec_byte & BAT_STAT_DISCHARGING)
                         val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
@@ -219,7 +221,8 @@ static int olpc_bat_get_property(struct power_supply *psy,
            It doesn't matter though -- the EC will return the last-known
            information, and it's as if we just ran that _little_ bit faster
            and managed to read it out before the battery went away. */
-        if (!(ec_byte & BAT_STAT_PRESENT) && psp != POWER_SUPPLY_PROP_PRESENT)
+        if (!(ec_byte & (BAT_STAT_PRESENT | BAT_STAT_TRICKLE)) &&
+                        psp != POWER_SUPPLY_PROP_PRESENT)
                 return -ENODEV;
 
         switch (psp) {
@@ -229,7 +232,8 @@ static int olpc_bat_get_property(struct power_supply *psy,
                         return ret;
                 break;
         case POWER_SUPPLY_PROP_PRESENT:
-                val->intval = !!(ec_byte & BAT_STAT_PRESENT);
+                val->intval = !!(ec_byte & (BAT_STAT_PRESENT |
+                                            BAT_STAT_TRICKLE));
                 break;
 
         case POWER_SUPPLY_PROP_HEALTH:
@@ -334,21 +338,21 @@ static ssize_t olpc_bat_eeprom_read(struct kobject *kobj,
                 struct bin_attribute *attr, char *buf, loff_t off, size_t count)
 {
         uint8_t ec_byte;
-        int ret, end;
+        int ret;
+        int i;
 
         if (off >= EEPROM_SIZE)
                 return 0;
         if (off + count > EEPROM_SIZE)
                 count = EEPROM_SIZE - off;
 
-        end = EEPROM_START + off + count;
-        for (ec_byte = EEPROM_START + off; ec_byte < end; ec_byte++) {
-                ret = olpc_ec_cmd(EC_BAT_EEPROM, &ec_byte, 1,
-                                &buf[ec_byte - EEPROM_START], 1);
+        for (i = 0; i < count; i++) {
+                ec_byte = EEPROM_START + off + i;
+                ret = olpc_ec_cmd(EC_BAT_EEPROM, &ec_byte, 1, &buf[i], 1);
                 if (ret) {
-                        printk(KERN_ERR "olpc-battery:  EC command "
-                                        "EC_BAT_EEPROM @ 0x%x failed -"
-                                        " %d!\n", ec_byte, ret);
+                        pr_err("olpc-battery: "
+                               "EC_BAT_EEPROM cmd @ 0x%x failed - %d!\n",
+                               ec_byte, ret);
                         return -EIO;
                 }
         }
diff --git a/drivers/power/wm97xx_battery.c b/drivers/power/wm97xx_battery.c
index 8bde92126d34..b787335a8419 100644
--- a/drivers/power/wm97xx_battery.c
+++ b/drivers/power/wm97xx_battery.c
@@ -33,14 +33,14 @@ static enum power_supply_property *prop;
 
 static unsigned long wm97xx_read_bat(struct power_supply *bat_ps)
 {
-        return wm97xx_read_aux_adc(bat_ps->dev->parent->driver_data,
+        return wm97xx_read_aux_adc(dev_get_drvdata(bat_ps->dev->parent),
                                         pdata->batt_aux) * pdata->batt_mult /
                                         pdata->batt_div;
 }
 
 static unsigned long wm97xx_read_temp(struct power_supply *bat_ps)
 {
-        return wm97xx_read_aux_adc(bat_ps->dev->parent->driver_data,
+        return wm97xx_read_aux_adc(dev_get_drvdata(bat_ps->dev->parent),
                                         pdata->temp_aux) * pdata->temp_mult /
                                         pdata->temp_div;
 }
diff --git a/drivers/rtc/rtc-bfin.c b/drivers/rtc/rtc-bfin.c
index aafd3e6ebb0d..a118eb0f1e67 100644
--- a/drivers/rtc/rtc-bfin.c
+++ b/drivers/rtc/rtc-bfin.c
@@ -1,8 +1,8 @@
 /*
  * Blackfin On-Chip Real Time Clock Driver
- *  Supports BF52[257]/BF53[123]/BF53[467]/BF54[24789]
+ *  Supports BF51x/BF52x/BF53[123]/BF53[467]/BF54x
  *
- * Copyright 2004-2008 Analog Devices Inc.
+ * Copyright 2004-2009 Analog Devices Inc.
  *
  * Enter bugs at http://blackfin.uclinux.org/
  *
@@ -363,7 +363,7 @@ static int __devinit bfin_rtc_probe(struct platform_device *pdev)
         struct bfin_rtc *rtc;
         struct device *dev = &pdev->dev;
         int ret = 0;
-        unsigned long timeout;
+        unsigned long timeout = jiffies + HZ;
 
         dev_dbg_stamp(dev);
 
@@ -374,32 +374,32 @@ static int __devinit bfin_rtc_probe(struct platform_device *pdev)
         platform_set_drvdata(pdev, rtc);
         device_init_wakeup(dev, 1);
 
+        /* Register our RTC with the RTC framework */
+        rtc->rtc_dev = rtc_device_register(pdev->name, dev, &bfin_rtc_ops,
+                                                THIS_MODULE);
+        if (unlikely(IS_ERR(rtc->rtc_dev))) {
+                ret = PTR_ERR(rtc->rtc_dev);
+                goto err;
+        }
+
         /* Grab the IRQ and init the hardware */
         ret = request_irq(IRQ_RTC, bfin_rtc_interrupt, IRQF_SHARED, pdev->name, dev);
         if (unlikely(ret))
-                goto err;
+                goto err_reg;
         /* sometimes the bootloader touched things, but the write complete was not
          * enabled, so let's just do a quick timeout here since the IRQ will not fire ...
          */
-        timeout = jiffies + HZ;
         while (bfin_read_RTC_ISTAT() & RTC_ISTAT_WRITE_PENDING)
                 if (time_after(jiffies, timeout))
                         break;
         bfin_rtc_reset(dev, RTC_ISTAT_WRITE_COMPLETE);
         bfin_write_RTC_SWCNT(0);
 
-        /* Register our RTC with the RTC framework */
-        rtc->rtc_dev = rtc_device_register(pdev->name, dev, &bfin_rtc_ops, THIS_MODULE);
-        if (unlikely(IS_ERR(rtc->rtc_dev))) {
-                ret = PTR_ERR(rtc->rtc_dev);
-                goto err_irq;
-        }
-
         return 0;
 
- err_irq:
-        free_irq(IRQ_RTC, dev);
- err:
+err_reg:
+        rtc_device_unregister(rtc->rtc_dev);
+err:
         kfree(rtc);
         return ret;
 }
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 23e10b6263d6..f7a4701bf863 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -1174,23 +1174,34 @@ static struct platform_driver cmos_platform_driver = {
         }
 };
 
+#ifdef CONFIG_PNP
+static bool pnp_driver_registered;
+#endif
+static bool platform_driver_registered;
+
 static int __init cmos_init(void)
 {
         int retval = 0;
 
 #ifdef  CONFIG_PNP
-        pnp_register_driver(&cmos_pnp_driver);
+        retval = pnp_register_driver(&cmos_pnp_driver);
+        if (retval == 0)
+                pnp_driver_registered = true;
 #endif
 
-        if (!cmos_rtc.dev)
+        if (!cmos_rtc.dev) {
                 retval = platform_driver_probe(&cmos_platform_driver,
                                                cmos_platform_probe);
+                if (retval == 0)
+                        platform_driver_registered = true;
+        }
 
         if (retval == 0)
                 return 0;
 
 #ifdef  CONFIG_PNP
-        pnp_unregister_driver(&cmos_pnp_driver);
+        if (pnp_driver_registered)
+                pnp_unregister_driver(&cmos_pnp_driver);
 #endif
         return retval;
 }
@@ -1199,9 +1210,11 @@ module_init(cmos_init);
 static void __exit cmos_exit(void)
 {
 #ifdef  CONFIG_PNP
-        pnp_unregister_driver(&cmos_pnp_driver);
+        if (pnp_driver_registered)
+                pnp_unregister_driver(&cmos_pnp_driver);
 #endif
-        platform_driver_unregister(&cmos_platform_driver);
+        if (platform_driver_registered)
+                platform_driver_unregister(&cmos_platform_driver);
 }
 module_exit(cmos_exit);
 
diff --git a/drivers/rtc/rtc-ds1374.c b/drivers/rtc/rtc-ds1374.c
index 32b27739ec2a..713f7bf5afb3 100644
--- a/drivers/rtc/rtc-ds1374.c
+++ b/drivers/rtc/rtc-ds1374.c
@@ -283,7 +283,7 @@ static void ds1374_work(struct work_struct *work)
 
         stat = i2c_smbus_read_byte_data(client, DS1374_REG_SR);
         if (stat < 0)
-                return;
+                goto unlock;
 
         if (stat & DS1374_REG_SR_AF) {
                 stat &= ~DS1374_REG_SR_AF;
@@ -302,7 +302,7 @@ static void ds1374_work(struct work_struct *work)
 out:
         if (!ds1374->exiting)
                 enable_irq(client->irq);
-
+unlock:
         mutex_unlock(&ds1374->mutex);
 }
 
diff --git a/drivers/rtc/rtc-vr41xx.c b/drivers/rtc/rtc-vr41xx.c
index f11297aff854..2c839d0d21bd 100644
--- a/drivers/rtc/rtc-vr41xx.c
+++ b/drivers/rtc/rtc-vr41xx.c
@@ -1,7 +1,7 @@
 /*
  *  Driver for NEC VR4100 series Real Time Clock unit.
  *
- *  Copyright (C) 2003-2008  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ *  Copyright (C) 2003-2008  Yoichi Yuasa <yuasa@linux-mips.org>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -33,7 +33,7 @@
 #include <asm/io.h>
 #include <asm/uaccess.h>
 
-MODULE_AUTHOR("Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>");
+MODULE_AUTHOR("Yoichi Yuasa <yuasa@linux-mips.org>");
 MODULE_DESCRIPTION("NEC VR4100 series RTC driver");
 MODULE_LICENSE("GPL v2");
 
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index f8b1f04f26b8..c11770f5b368 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -1696,8 +1696,7 @@ static void dasd_eckd_handle_unsolicited_interrupt(struct dasd_device *device,
                 DBF_DEV_EVENT(DBF_ERR, device, "%s",
                             "unsolicited interrupt received "
                             "(sense available)");
-                device->discipline->dump_sense_dbf(device, NULL, irb,
-                                                   "unsolicited");
+                device->discipline->dump_sense_dbf(device, irb, "unsolicited");
         }
 
         dasd_schedule_device_bh(device);
@@ -2941,42 +2940,20 @@ dasd_eckd_dump_ccw_range(struct ccw1 *from, struct ccw1 *to, char *page)
 }
 
 static void
-dasd_eckd_dump_sense_dbf(struct dasd_device *device, struct dasd_ccw_req *req,
-                         struct irb *irb, char *reason)
+dasd_eckd_dump_sense_dbf(struct dasd_device *device, struct irb *irb,
+                         char *reason)
 {
         u64 *sense;
-        int sl;
-        struct tsb *tsb;
 
-        sense = NULL;
-        tsb = NULL;
-        if (req && scsw_is_tm(&req->irb.scsw)) {
-                if (irb->scsw.tm.tcw)
-                        tsb = tcw_get_tsb(
-                                (struct tcw *)(unsigned long)irb->scsw.tm.tcw);
-                if (tsb && (irb->scsw.tm.fcxs == 0x01)) {
-                        switch (tsb->flags & 0x07) {
-                        case 1: /* tsa_iostat */
-                                sense = (u64 *)tsb->tsa.iostat.sense;
-                        break;
-                        case 2: /* ts_ddpc */
-                                sense = (u64 *)tsb->tsa.ddpc.sense;
-                        break;
-                        case 3: /* tsa_intrg */
-                        break;
-                        }
-                }
-        } else {
-                if (irb->esw.esw0.erw.cons)
-                        sense = (u64 *)irb->ecw;
-        }
+        sense = (u64 *) dasd_get_sense(irb);
         if (sense) {
-                for (sl = 0; sl < 4; sl++) {
-                        DBF_DEV_EVENT(DBF_EMERG, device,
-                                      "%s: %016llx %016llx %016llx %016llx",
-                                      reason, sense[0], sense[1], sense[2],
-                                      sense[3]);
-                }
+                DBF_DEV_EVENT(DBF_EMERG, device,
+                              "%s: %s %02x%02x%02x %016llx %016llx %016llx "
+                              "%016llx", reason,
+                              scsw_is_tm(&irb->scsw) ? "t" : "c",
+                              scsw_cc(&irb->scsw), scsw_cstat(&irb->scsw),
+                              scsw_dstat(&irb->scsw), sense[0], sense[1],
+                              sense[2], sense[3]);
         } else {
                 DBF_DEV_EVENT(DBF_EMERG, device, "%s",
                               "SORRY - NO VALID SENSE AVAILABLE\n");
diff --git a/drivers/s390/block/dasd_erp.c b/drivers/s390/block/dasd_erp.c
index d970ce2814be..cb8f9cef7429 100644
--- a/drivers/s390/block/dasd_erp.c
+++ b/drivers/s390/block/dasd_erp.c
@@ -172,7 +172,7 @@ dasd_log_sense_dbf(struct dasd_ccw_req *cqr, struct irb *irb)
         device = cqr->startdev;
         /* dump sense data to s390 debugfeature*/
         if (device->discipline && device->discipline->dump_sense_dbf)
-                device->discipline->dump_sense_dbf(device, cqr, irb, "log");
+                device->discipline->dump_sense_dbf(device, irb, "log");
 }
 EXPORT_SYMBOL(dasd_log_sense_dbf);
 
diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c
index e21ee735f926..31849ad5e59f 100644
--- a/drivers/s390/block/dasd_fba.c
+++ b/drivers/s390/block/dasd_fba.c
@@ -241,7 +241,7 @@ static void dasd_fba_handle_unsolicited_interrupt(struct dasd_device *device,
         /* check for unsolicited interrupts */
         DBF_DEV_EVENT(DBF_WARNING, device, "%s",
                     "unsolicited interrupt received");
-        device->discipline->dump_sense_dbf(device, NULL, irb, "unsolicited");
+        device->discipline->dump_sense_dbf(device, irb, "unsolicited");
         dasd_schedule_device_bh(device);
         return;
 };
@@ -444,17 +444,20 @@ dasd_fba_fill_info(struct dasd_device * device,
 }
 
 static void
-dasd_fba_dump_sense_dbf(struct dasd_device *device, struct dasd_ccw_req *req,
-                         struct irb *irb, char *reason)
+dasd_fba_dump_sense_dbf(struct dasd_device *device, struct irb *irb,
+                        char *reason)
 {
-        int sl;
-        if (irb->esw.esw0.erw.cons) {
-                for (sl = 0; sl < 4; sl++) {
-                        DBF_DEV_EVENT(DBF_EMERG, device,
-                                      "%s: %08x %08x %08x %08x",
-                                      reason, irb->ecw[8 * 0], irb->ecw[8 * 1],
-                                      irb->ecw[8 * 2], irb->ecw[8 * 3]);
-                }
+        u64 *sense;
+
+        sense = (u64 *) dasd_get_sense(irb);
+        if (sense) {
+                DBF_DEV_EVENT(DBF_EMERG, device,
+                              "%s: %s %02x%02x%02x %016llx %016llx %016llx "
+                              "%016llx", reason,
+                              scsw_is_tm(&irb->scsw) ? "t" : "c",
+                              scsw_cc(&irb->scsw), scsw_cstat(&irb->scsw),
+                              scsw_dstat(&irb->scsw), sense[0], sense[1],
+                              sense[2], sense[3]);
         } else {
                 DBF_DEV_EVENT(DBF_EMERG, device, "%s",
                               "SORRY - NO VALID SENSE AVAILABLE\n");
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index fd63b2f2bda9..b699ca356ac5 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -284,8 +284,7 @@ struct dasd_discipline {
         dasd_erp_fn_t(*erp_postaction) (struct dasd_ccw_req *);
         void (*dump_sense) (struct dasd_device *, struct dasd_ccw_req *,
                             struct irb *);
-        void (*dump_sense_dbf) (struct dasd_device *, struct dasd_ccw_req *,
-                            struct irb *, char *);
+        void (*dump_sense_dbf) (struct dasd_device *, struct irb *, char *);
 
         void (*handle_unsolicited_interrupt) (struct dasd_device *,
                                               struct irb *);
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index 4ce3f72ee1c1..df918ef27965 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -16,6 +16,7 @@
 #include <linux/major.h>
 #include <linux/fs.h>
 #include <linux/blkpg.h>
+#include <linux/smp_lock.h>
 
 #include <asm/ccwdev.h>
 #include <asm/cmb.h>
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 016f9e9d2591..d34617682a62 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -964,7 +964,8 @@ static int dcssblk_freeze(struct device *dev)
                         break;
         }
         if (rc)
-                pr_err("Suspend failed because device %s is writeable.\n",
+                pr_err("Suspending the system failed because DCSS device %s "
+                       "is writable\n",
                        dev_info->segment_name);
         return rc;
 }
@@ -987,8 +988,8 @@ static int dcssblk_restore(struct device *dev)
                                 goto out_panic;
                         }
                         if (start != entry->start || end != entry->end) {
-                                pr_err("Mismatch of start / end address after "
-                                       "resuming device %s\n",
+                                pr_err("The address range of DCSS %s changed "
+                                       "while the system was suspended\n",
                                        entry->segment_name);
                                 goto out_panic;
                         }
diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c
index 2e9e1ecd6d82..db442cd6621e 100644
--- a/drivers/s390/block/xpram.c
+++ b/drivers/s390/block/xpram.c
@@ -443,7 +443,7 @@ fail:
  */
 static void xpram_resume_error(const char *message)
 {
-        pr_err("Resume error: %s\n", message);
+        pr_err("Resuming the system failed: %s\n", message);
         panic("xpram resume error\n");
 }
 
diff --git a/drivers/s390/char/monreader.c b/drivers/s390/char/monreader.c
index 7892550d7932..3234e90bd7f9 100644
--- a/drivers/s390/char/monreader.c
+++ b/drivers/s390/char/monreader.c
@@ -320,7 +320,7 @@ static int mon_open(struct inode *inode, struct file *filp)
                 goto out_path;
         }
         filp->private_data = monpriv;
-        dev_set_drvdata(&monreader_device, monpriv);
+        dev_set_drvdata(monreader_device, monpriv);
         unlock_kernel();
         return nonseekable_open(inode, filp);
 
@@ -463,7 +463,7 @@ static struct miscdevice mon_dev = {
  *****************************************************************************/
 static int monreader_freeze(struct device *dev)
 {
-        struct mon_private *monpriv = dev_get_drvdata(&dev);
+        struct mon_private *monpriv = dev_get_drvdata(dev);
         int rc;
 
         if (!monpriv)
diff --git a/drivers/s390/char/sclp_rw.h b/drivers/s390/char/sclp_rw.h
index 85f491ea929c..7a7bfc947d97 100644
--- a/drivers/s390/char/sclp_rw.h
+++ b/drivers/s390/char/sclp_rw.h
@@ -92,5 +92,10 @@ void sclp_set_columns(struct sclp_buffer *, unsigned short);
 void sclp_set_htab(struct sclp_buffer *, unsigned short);
 int sclp_chars_in_buffer(struct sclp_buffer *);
 
+#ifdef CONFIG_SCLP_CONSOLE
 void sclp_console_pm_event(enum sclp_pm_event sclp_pm_event);
+#else
+static inline void sclp_console_pm_event(enum sclp_pm_event sclp_pm_event) { }
+#endif
+
 #endif  /* __SCLP_RW_H__ */
diff --git a/drivers/s390/char/vmwatchdog.c b/drivers/s390/char/vmwatchdog.c
index cb7854c10c04..f2bc287b69e4 100644
--- a/drivers/s390/char/vmwatchdog.c
+++ b/drivers/s390/char/vmwatchdog.c
@@ -250,14 +250,14 @@ static int vmwdt_resume(void)
 static int vmwdt_suspend(void)
 {
         if (test_and_set_bit(VMWDT_OPEN, &vmwdt_is_open)) {
-                pr_err("The watchdog is in use. "
-                        "This prevents hibernation or suspend.\n");
+                pr_err("The system cannot be suspended while the watchdog"
+                        " is in use\n");
                 return NOTIFY_BAD;
         }
         if (test_bit(VMWDT_RUNNING, &vmwdt_is_open)) {
                 clear_bit(VMWDT_OPEN, &vmwdt_is_open);
-                pr_err("The watchdog is running. "
-                        "This prevents hibernation or suspend.\n");
+                pr_err("The system cannot be suspended while the watchdog"
+                        " is running\n");
                 return NOTIFY_BAD;
         }
         return NOTIFY_DONE;
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index 727a809636d8..ed3dcdea7fe1 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -1145,12 +1145,17 @@ ap_config_timeout(unsigned long ptr)
  */
 static inline void ap_schedule_poll_timer(void)
 {
+        ktime_t hr_time;
         if (ap_using_interrupts() || ap_suspend_flag)
                 return;
         if (hrtimer_is_queued(&ap_poll_timer))
                 return;
-        hrtimer_start(&ap_poll_timer, ktime_set(0, poll_timeout),
-                      HRTIMER_MODE_ABS);
+        if (ktime_to_ns(hrtimer_expires_remaining(&ap_poll_timer)) <= 0) {
+                hr_time = ktime_set(0, poll_timeout);
+                hrtimer_forward_now(&ap_poll_timer, hr_time);
+                hrtimer_restart(&ap_poll_timer);
+        }
+        return;
 }
 
 /**
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index 8030e25152fb..c75d6f35cb5f 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -553,40 +553,35 @@ static void _zfcp_erp_unit_reopen_all(struct zfcp_port *port, int clear,
                 _zfcp_erp_unit_reopen(unit, clear, id, ref);
 }
 
-static void zfcp_erp_strategy_followup_actions(struct zfcp_erp_action *act)
+static void zfcp_erp_strategy_followup_failed(struct zfcp_erp_action *act)
 {
-        struct zfcp_adapter *adapter = act->adapter;
-        struct zfcp_port *port = act->port;
-        struct zfcp_unit *unit = act->unit;
-        u32 status = act->status;
-
-        /* initiate follow-up actions depending on success of finished action */
         switch (act->action) {
-
         case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
-                if (status == ZFCP_ERP_SUCCEEDED)
-                        _zfcp_erp_port_reopen_all(adapter, 0, "ersfa_1", NULL);
-                else
-                        _zfcp_erp_adapter_reopen(adapter, 0, "ersfa_2", NULL);
+                _zfcp_erp_adapter_reopen(act->adapter, 0, "ersff_1", NULL);
                 break;
-
         case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
-                if (status == ZFCP_ERP_SUCCEEDED)
-                        _zfcp_erp_port_reopen(port, 0, "ersfa_3", NULL);
-                else
-                        _zfcp_erp_adapter_reopen(adapter, 0, "ersfa_4", NULL);
+                _zfcp_erp_port_forced_reopen(act->port, 0, "ersff_2", NULL);
                 break;
-
         case ZFCP_ERP_ACTION_REOPEN_PORT:
-                if (status == ZFCP_ERP_SUCCEEDED)
-                        _zfcp_erp_unit_reopen_all(port, 0, "ersfa_5", NULL);
-                else
-                        _zfcp_erp_port_forced_reopen(port, 0, "ersfa_6", NULL);
+                _zfcp_erp_port_reopen(act->port, 0, "ersff_3", NULL);
                 break;
-
         case ZFCP_ERP_ACTION_REOPEN_UNIT:
-                if (status != ZFCP_ERP_SUCCEEDED)
-                        _zfcp_erp_port_reopen(unit->port, 0, "ersfa_7", NULL);
+                _zfcp_erp_unit_reopen(act->unit, 0, "ersff_4", NULL);
+                break;
+        }
+}
+
+static void zfcp_erp_strategy_followup_success(struct zfcp_erp_action *act)
+{
+        switch (act->action) {
+        case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
+                _zfcp_erp_port_reopen_all(act->adapter, 0, "ersfs_1", NULL);
+                break;
+        case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
+                _zfcp_erp_port_reopen(act->port, 0, "ersfs_2", NULL);
+                break;
+        case ZFCP_ERP_ACTION_REOPEN_PORT:
+                _zfcp_erp_unit_reopen_all(act->port, 0, "ersfs_3", NULL);
                 break;
         }
 }
@@ -801,7 +796,7 @@ static int zfcp_erp_port_forced_strategy(struct zfcp_erp_action *erp_action)
                         return ZFCP_ERP_FAILED;
 
         case ZFCP_ERP_STEP_PHYS_PORT_CLOSING:
-                if (status & ZFCP_STATUS_PORT_PHYS_OPEN)
+                if (!(status & ZFCP_STATUS_PORT_PHYS_OPEN))
                         return ZFCP_ERP_SUCCEEDED;
         }
         return ZFCP_ERP_FAILED;
@@ -853,11 +848,17 @@ void zfcp_erp_port_strategy_open_lookup(struct work_struct *work)
                                               gid_pn_work);
 
         retval = zfcp_fc_ns_gid_pn(&port->erp_action);
-        if (retval == -ENOMEM)
-                zfcp_erp_notify(&port->erp_action, ZFCP_ERP_NOMEM);
-        port->erp_action.step = ZFCP_ERP_STEP_NAMESERVER_LOOKUP;
-        if (retval)
-                zfcp_erp_notify(&port->erp_action, ZFCP_ERP_FAILED);
+        if (!retval) {
+                port->erp_action.step = ZFCP_ERP_STEP_NAMESERVER_LOOKUP;
+                goto out;
+        }
+        if (retval == -ENOMEM) {
+                zfcp_erp_notify(&port->erp_action, ZFCP_STATUS_ERP_LOWMEM);
+                goto out;
+        }
+        /* all other error condtions */
+        zfcp_erp_notify(&port->erp_action, 0);
+out:
         zfcp_port_put(port);
 }
 
@@ -1289,7 +1290,10 @@ static int zfcp_erp_strategy(struct zfcp_erp_action *erp_action)
         retval = zfcp_erp_strategy_statechange(erp_action, retval);
         if (retval == ZFCP_ERP_EXIT)
                 goto unlock;
-        zfcp_erp_strategy_followup_actions(erp_action);
+        if (retval == ZFCP_ERP_SUCCEEDED)
+                zfcp_erp_strategy_followup_success(erp_action);
+        if (retval == ZFCP_ERP_FAILED)
+                zfcp_erp_strategy_followup_failed(erp_action);
 
  unlock:
         write_unlock(&adapter->erp_lock);
diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c
index 2f0705d76b72..47daebfa7e59 100644
--- a/drivers/s390/scsi/zfcp_fc.c
+++ b/drivers/s390/scsi/zfcp_fc.c
@@ -79,11 +79,9 @@ static int zfcp_wka_port_get(struct zfcp_wka_port *wka_port)
 
         mutex_unlock(&wka_port->mutex);
 
-        wait_event_timeout(
-                wka_port->completion_wq,
-                wka_port->status == ZFCP_WKA_PORT_ONLINE ||
-                wka_port->status == ZFCP_WKA_PORT_OFFLINE,
-                HZ >> 1);
+        wait_event(wka_port->completion_wq,
+                   wka_port->status == ZFCP_WKA_PORT_ONLINE ||
+                   wka_port->status == ZFCP_WKA_PORT_OFFLINE);
 
         if (wka_port->status == ZFCP_WKA_PORT_ONLINE) {
                 atomic_inc(&wka_port->refcount);
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index c57658f3d34f..47795fbf081f 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -670,8 +670,11 @@ static int zfcp_fsf_req_sbal_get(struct zfcp_adapter *adapter)
                                zfcp_fsf_sbal_check(adapter), 5 * HZ);
         if (ret > 0)
                 return 0;
-        if (!ret)
+        if (!ret) {
                 atomic_inc(&adapter->qdio_outb_full);
+                /* assume hanging outbound queue, try queue recovery */
+                zfcp_erp_adapter_reopen(adapter, 0, "fsrsg_1", NULL);
+        }
 
         spin_lock_bh(&adapter->req_q_lock);
         return -EIO;
@@ -722,7 +725,7 @@ static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_adapter *adapter,
                 req = zfcp_fsf_alloc_qtcb(pool);
 
         if (unlikely(!req))
-                return ERR_PTR(-EIO);
+                return ERR_PTR(-ENOMEM);
 
         if (adapter->req_no == 0)
                 adapter->req_no++;
@@ -1010,6 +1013,23 @@ skip_fsfstatus:
                 send_ct->handler(send_ct->handler_data);
 }
 
+static void zfcp_fsf_setup_ct_els_unchained(struct qdio_buffer_element *sbale,
+                                            struct scatterlist *sg_req,
+                                            struct scatterlist *sg_resp)
+{
+        sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE_READ;
+        sbale[2].addr   = sg_virt(sg_req);
+        sbale[2].length = sg_req->length;
+        sbale[3].addr   = sg_virt(sg_resp);
+        sbale[3].length = sg_resp->length;
+        sbale[3].flags |= SBAL_FLAGS_LAST_ENTRY;
+}
+
+static int zfcp_fsf_one_sbal(struct scatterlist *sg)
+{
+        return sg_is_last(sg) && sg->length <= PAGE_SIZE;
+}
+
 static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req,
                                        struct scatterlist *sg_req,
                                        struct scatterlist *sg_resp,
@@ -1020,30 +1040,30 @@ static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req,
         int bytes;
 
         if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) {
-                if (sg_req->length > PAGE_SIZE || sg_resp->length > PAGE_SIZE ||
-                    !sg_is_last(sg_req) || !sg_is_last(sg_resp))
+                if (!zfcp_fsf_one_sbal(sg_req) || !zfcp_fsf_one_sbal(sg_resp))
                         return -EOPNOTSUPP;
 
-                sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE_READ;
-                sbale[2].addr   = sg_virt(sg_req);
-                sbale[2].length = sg_req->length;
-                sbale[3].addr   = sg_virt(sg_resp);
-                sbale[3].length = sg_resp->length;
-                sbale[3].flags |= SBAL_FLAGS_LAST_ENTRY;
+                zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp);
+                return 0;
+        }
+
+        /* use single, unchained SBAL if it can hold the request */
+        if (zfcp_fsf_one_sbal(sg_req) && zfcp_fsf_one_sbal(sg_resp)) {
+                zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp);
                 return 0;
         }
 
         bytes = zfcp_qdio_sbals_from_sg(req, SBAL_FLAGS0_TYPE_WRITE_READ,
                                         sg_req, max_sbals);
         if (bytes <= 0)
-                return -ENOMEM;
+                return -EIO;
         req->qtcb->bottom.support.req_buf_length = bytes;
         req->sbale_curr = ZFCP_LAST_SBALE_PER_SBAL;
 
         bytes = zfcp_qdio_sbals_from_sg(req, SBAL_FLAGS0_TYPE_WRITE_READ,
                                         sg_resp, max_sbals);
         if (bytes <= 0)
-                return -ENOMEM;
+                return -EIO;
         req->qtcb->bottom.support.resp_buf_length = bytes;
 
         return 0;
@@ -1607,10 +1627,10 @@ static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req)
         case FSF_ACCESS_DENIED:
                 wka_port->status = ZFCP_WKA_PORT_OFFLINE;
                 break;
-        case FSF_PORT_ALREADY_OPEN:
-                break;
         case FSF_GOOD:
                 wka_port->handle = header->port_handle;
+                /* fall through */
+        case FSF_PORT_ALREADY_OPEN:
                 wka_port->status = ZFCP_WKA_PORT_ONLINE;
         }
 out:
@@ -1731,15 +1751,16 @@ static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req)
                 zfcp_fsf_access_denied_port(req, port);
                 break;
         case FSF_PORT_BOXED:
-                zfcp_erp_port_boxed(port, "fscpph2", req);
-                req->status |= ZFCP_STATUS_FSFREQ_ERROR |
-                               ZFCP_STATUS_FSFREQ_RETRY;
                 /* can't use generic zfcp_erp_modify_port_status because
                  * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */
                 atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status);
                 list_for_each_entry(unit, &port->unit_list_head, list)
                         atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN,
                                           &unit->status);
+                zfcp_erp_port_boxed(port, "fscpph2", req);
+                req->status |= ZFCP_STATUS_FSFREQ_ERROR |
+                               ZFCP_STATUS_FSFREQ_RETRY;
+
                 break;
         case FSF_ADAPTER_STATUS_AVAILABLE:
                 switch (header->fsf_status_qual.word[0]) {
@@ -2541,7 +2562,6 @@ struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter,
         bytes = zfcp_qdio_sbals_from_sg(req, direction, fsf_cfdc->sg,
                                         FSF_MAX_SBALS_PER_REQ);
         if (bytes != ZFCP_CFDC_MAX_SIZE) {
-                retval = -ENOMEM;
                 zfcp_fsf_req_free(req);
                 goto out;
         }
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 967ede73f4c5..6925a1784682 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -167,20 +167,21 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
         struct zfcp_unit *unit = scpnt->device->hostdata;
         struct zfcp_fsf_req *old_req, *abrt_req;
         unsigned long flags;
-        unsigned long old_req_id = (unsigned long) scpnt->host_scribble;
+        unsigned long old_reqid = (unsigned long) scpnt->host_scribble;
         int retval = SUCCESS;
         int retry = 3;
+        char *dbf_tag;
 
         /* avoid race condition between late normal completion and abort */
         write_lock_irqsave(&adapter->abort_lock, flags);
 
         spin_lock(&adapter->req_list_lock);
-        old_req = zfcp_reqlist_find(adapter, old_req_id);
+        old_req = zfcp_reqlist_find(adapter, old_reqid);
         spin_unlock(&adapter->req_list_lock);
         if (!old_req) {
                 write_unlock_irqrestore(&adapter->abort_lock, flags);
                 zfcp_scsi_dbf_event_abort("lte1", adapter, scpnt, NULL,
-                                          old_req_id);
+                                          old_reqid);
                 return FAILED; /* completion could be in progress */
         }
         old_req->data = NULL;
@@ -189,7 +190,7 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
         write_unlock_irqrestore(&adapter->abort_lock, flags);
 
         while (retry--) {
-                abrt_req = zfcp_fsf_abort_fcp_command(old_req_id, unit);
+                abrt_req = zfcp_fsf_abort_fcp_command(old_reqid, unit);
                 if (abrt_req)
                         break;
 
@@ -197,7 +198,7 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
                 if (!(atomic_read(&adapter->status) &
                       ZFCP_STATUS_COMMON_RUNNING)) {
                         zfcp_scsi_dbf_event_abort("nres", adapter, scpnt, NULL,
-                                                  old_req_id);
+                                                  old_reqid);
                         return SUCCESS;
                 }
         }
@@ -208,13 +209,14 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
                    abrt_req->status & ZFCP_STATUS_FSFREQ_COMPLETED);
 
         if (abrt_req->status & ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED)
-                zfcp_scsi_dbf_event_abort("okay", adapter, scpnt, abrt_req, 0);
+                dbf_tag = "okay";
         else if (abrt_req->status & ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED)
-                zfcp_scsi_dbf_event_abort("lte2", adapter, scpnt, abrt_req, 0);
+                dbf_tag = "lte2";
         else {
-                zfcp_scsi_dbf_event_abort("fail", adapter, scpnt, abrt_req, 0);
+                dbf_tag = "fail";
                 retval = FAILED;
         }
+        zfcp_scsi_dbf_event_abort(dbf_tag, adapter, scpnt, abrt_req, old_reqid);
         zfcp_fsf_req_free(abrt_req);
         return retval;
 }
@@ -534,6 +536,9 @@ static void zfcp_scsi_rport_register(struct zfcp_port *port)
         struct fc_rport_identifiers ids;
         struct fc_rport *rport;
 
+        if (port->rport)
+                return;
+
         ids.node_name = port->wwnn;
         ids.port_name = port->wwpn;
         ids.port_id = port->d_id;
@@ -557,8 +562,10 @@ static void zfcp_scsi_rport_block(struct zfcp_port *port)
 {
         struct fc_rport *rport = port->rport;
 
-        if (rport)
+        if (rport) {
                 fc_remote_port_delete(rport);
+                port->rport = NULL;
+        }
 }
 
 void zfcp_scsi_schedule_rport_register(struct zfcp_port *port)
diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c
index 3e51e64d1108..0fe5cce818cb 100644
--- a/drivers/s390/scsi/zfcp_sysfs.c
+++ b/drivers/s390/scsi/zfcp_sysfs.c
@@ -494,9 +494,14 @@ static ssize_t zfcp_sysfs_adapter_q_full_show(struct device *dev,
         struct Scsi_Host *scsi_host = class_to_shost(dev);
         struct zfcp_adapter *adapter =
                 (struct zfcp_adapter *) scsi_host->hostdata[0];
+        u64 util;
+
+        spin_lock_bh(&adapter->qdio_stat_lock);
+        util = adapter->req_q_util;
+        spin_unlock_bh(&adapter->qdio_stat_lock);
 
         return sprintf(buf, "%d %llu\n", atomic_read(&adapter->qdio_outb_full),
-                       (unsigned long long)adapter->req_q_util);
+                       (unsigned long long)util);
 }
 static DEVICE_ATTR(queue_full, S_IRUGO, zfcp_sysfs_adapter_q_full_show, NULL);
 
diff --git a/drivers/scsi/atari_NCR5380.c b/drivers/scsi/atari_NCR5380.c
index 0471f8800483..4240b05aef6d 100644
--- a/drivers/scsi/atari_NCR5380.c
+++ b/drivers/scsi/atari_NCR5380.c
@@ -2826,8 +2826,7 @@ int NCR5380_abort(Scsi_Cmnd *cmd)
          */
 
         local_irq_restore(flags);
-        printk(KERN_INFO "scsi%d: warning : SCSI command probably completed successfully\n"
-               KERN_INFO "        before abortion\n", HOSTNO);
+        printk(KERN_INFO "scsi%d: warning : SCSI command probably completed successfully before abortion\n", HOSTNO);
 
         /* Maybe it is sufficient just to release the ST-DMA lock... (if
          * possible at all) At least, we should check if the lock could be
diff --git a/drivers/scsi/cxgb3i/Kbuild b/drivers/scsi/cxgb3i/Kbuild
index 25a2032bfa26..70d060b7ff4f 100644
--- a/drivers/scsi/cxgb3i/Kbuild
+++ b/drivers/scsi/cxgb3i/Kbuild
@@ -1,4 +1,4 @@
-EXTRA_CFLAGS += -I$(TOPDIR)/drivers/net/cxgb3
+EXTRA_CFLAGS += -I$(srctree)/drivers/net/cxgb3
 
 cxgb3i-y := cxgb3i_init.o cxgb3i_iscsi.o cxgb3i_pdu.o cxgb3i_offload.o cxgb3i_ddp.o
 obj-$(CONFIG_SCSI_CXGB3_ISCSI) += cxgb3i.o
diff --git a/drivers/scsi/cxgb3i/cxgb3i_iscsi.c b/drivers/scsi/cxgb3i/cxgb3i_iscsi.c
index 74369a3f963b..c399f485aa7d 100644
--- a/drivers/scsi/cxgb3i/cxgb3i_iscsi.c
+++ b/drivers/scsi/cxgb3i/cxgb3i_iscsi.c
@@ -13,6 +13,7 @@
 
 #include <linux/inet.h>
 #include <linux/crypto.h>
+#include <linux/if_vlan.h>
 #include <net/dst.h>
 #include <net/tcp.h>
 #include <scsi/scsi_cmnd.h>
@@ -184,6 +185,9 @@ static struct cxgb3i_hba *cxgb3i_hba_find_by_netdev(struct net_device *ndev)
         struct cxgb3i_adapter *snic;
         int i;
 
+        if (ndev->priv_flags & IFF_802_1Q_VLAN)
+                ndev = vlan_dev_real_dev(ndev);
+
         read_lock(&cxgb3i_snic_rwlock);
         list_for_each_entry(snic, &cxgb3i_snic_list, list_head) {
                 for (i = 0; i < snic->hba_cnt; i++) {
diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c
index a84072865fc2..2c266c01dc5a 100644
--- a/drivers/scsi/fnic/fnic_main.c
+++ b/drivers/scsi/fnic/fnic_main.c
@@ -473,16 +473,16 @@ static int __devinit fnic_probe(struct pci_dev *pdev,
          * limitation for the device.  Try 40-bit first, and
          * fail to 32-bit.
          */
-        err = pci_set_dma_mask(pdev, DMA_40BIT_MASK);
+        err = pci_set_dma_mask(pdev, DMA_BIT_MASK(40));
         if (err) {
-                err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+                err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
                 if (err) {
                         shost_printk(KERN_ERR, fnic->lport->host,
                                      "No usable DMA configuration "
                                      "aborting\n");
                         goto err_out_release_regions;
                 }
-                err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+                err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
                 if (err) {
                         shost_printk(KERN_ERR, fnic->lport->host,
                                      "Unable to obtain 32-bit DMA "
@@ -490,7 +490,7 @@ static int __devinit fnic_probe(struct pci_dev *pdev,
                         goto err_out_release_regions;
                 }
         } else {
-                err = pci_set_consistent_dma_mask(pdev, DMA_40BIT_MASK);
+                err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40));
                 if (err) {
                         shost_printk(KERN_ERR, fnic->lport->host,
                                      "Unable to obtain 40-bit DMA "
diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c
index eabf36502856..bfc996971b81 100644
--- a/drivers/scsi/fnic/fnic_scsi.c
+++ b/drivers/scsi/fnic/fnic_scsi.c
@@ -245,7 +245,7 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic,
                                           struct vnic_wq_copy *wq,
                                           struct fnic_io_req *io_req,
                                           struct scsi_cmnd *sc,
-                                          u32 sg_count)
+                                          int sg_count)
 {
         struct scatterlist *sg;
         struct fc_rport *rport = starget_to_rport(scsi_target(sc->device));
@@ -260,9 +260,6 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic,
         char msg[2];
 
         if (sg_count) {
-                BUG_ON(sg_count < 0);
-                BUG_ON(sg_count > FNIC_MAX_SG_DESC_CNT);
-
                 /* For each SGE, create a device desc entry */
                 desc = io_req->sgl_list;
                 for_each_sg(scsi_sglist(sc), sg, sg_count, i) {
@@ -344,7 +341,7 @@ int fnic_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
         struct fnic *fnic;
         struct vnic_wq_copy *wq;
         int ret;
-        u32 sg_count;
+        int sg_count;
         unsigned long flags;
         unsigned long ptr;
 
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index 869a11bdccbd..9928704e235f 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -1095,9 +1095,14 @@ static void adapter_info_rsp(struct srp_event_struct *evt_struct)
                                 MAX_INDIRECT_BUFS);
                         hostdata->host->sg_tablesize = MAX_INDIRECT_BUFS;
                 }
+
+                if (hostdata->madapter_info.os_type == 3) {
+                        enable_fast_fail(hostdata);
+                        return;
+                }
         }
 
-        enable_fast_fail(hostdata);
+        send_srp_login(hostdata);
 }
 
 /**
diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index 2bc22be5f849..145ab9ba55ea 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -415,9 +415,9 @@ static void fc_exch_timeout(struct work_struct *work)
         e_stat = ep->esb_stat;
         if (e_stat & ESB_ST_COMPLETE) {
                 ep->esb_stat = e_stat & ~ESB_ST_REC_QUAL;
+                spin_unlock_bh(&ep->ex_lock);
                 if (e_stat & ESB_ST_REC_QUAL)
                         fc_exch_rrq(ep);
-                spin_unlock_bh(&ep->ex_lock);
                 goto done;
         } else {
                 resp = ep->resp;
@@ -1624,14 +1624,14 @@ static void fc_exch_rrq(struct fc_exch *ep)
         struct fc_lport *lp;
         struct fc_els_rrq *rrq;
         struct fc_frame *fp;
-        struct fc_seq *rrq_sp;
         u32 did;
 
         lp = ep->lp;
 
         fp = fc_frame_alloc(lp, sizeof(*rrq));
         if (!fp)
-                return;
+                goto retry;
+
         rrq = fc_frame_payload_get(fp, sizeof(*rrq));
         memset(rrq, 0, sizeof(*rrq));
         rrq->rrq_cmd = ELS_RRQ;
@@ -1647,13 +1647,20 @@ static void fc_exch_rrq(struct fc_exch *ep)
                        fc_host_port_id(lp->host), FC_TYPE_ELS,
                        FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0);
 
-        rrq_sp = fc_exch_seq_send(lp, fp, fc_exch_rrq_resp, NULL, ep,
-                                  lp->e_d_tov);
-        if (!rrq_sp) {
-                ep->esb_stat |= ESB_ST_REC_QUAL;
-                fc_exch_timer_set_locked(ep, ep->r_a_tov);
+        if (fc_exch_seq_send(lp, fp, fc_exch_rrq_resp, NULL, ep, lp->e_d_tov))
+                return;
+
+retry:
+        spin_lock_bh(&ep->ex_lock);
+        if (ep->state & (FC_EX_RST_CLEANUP | FC_EX_DONE)) {
+                spin_unlock_bh(&ep->ex_lock);
+                /* drop hold for rec qual */
+                fc_exch_release(ep);
                 return;
         }
+        ep->esb_stat |= ESB_ST_REC_QUAL;
+        fc_exch_timer_set_locked(ep, ep->r_a_tov);
+        spin_unlock_bh(&ep->ex_lock);
 }
 
 
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 716cc344c5df..a751f6230c22 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -1974,10 +1974,10 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
                  * good and have never sent us a successful tmf response
                  * then sent more data for the cmd.
                  */
-                spin_lock(&session->lock);
+                spin_lock_bh(&session->lock);
                 fail_scsi_task(task, DID_ABORT);
                 conn->tmf_state = TMF_INITIAL;
-                spin_unlock(&session->lock);
+                spin_unlock_bh(&session->lock);
                 iscsi_start_tx(conn);
                 goto success_unlocked;
         case TMF_TIMEDOUT:
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c
index 54fa1e42dc4d..b3381959acce 100644
--- a/drivers/scsi/libsas/sas_expander.c
+++ b/drivers/scsi/libsas/sas_expander.c
@@ -766,6 +766,7 @@ static int sas_ex_join_wide_port(struct domain_device *parent, int phy_id)
                 if (!memcmp(phy->attached_sas_addr, ephy->attached_sas_addr,
                             SAS_ADDR_SIZE) && ephy->port) {
                         sas_port_add_phy(ephy->port, phy->phy);
+                        phy->port = ephy->port;
                         phy->phy_state = PHY_DEVICE_DISCOVERED;
                         return 0;
                 }
@@ -945,11 +946,21 @@ static int sas_ex_discover_dev(struct domain_device *dev, int phy_id)
                         if (ex->ex_phy[i].phy_state == PHY_VACANT ||
                             ex->ex_phy[i].phy_state == PHY_NOT_PRESENT)
                                 continue;
-
+                        /*
+                         * Due to races, the phy might not get added to the
+                         * wide port, so we add the phy to the wide port here.
+                         */
                         if (SAS_ADDR(ex->ex_phy[i].attached_sas_addr) ==
-                            SAS_ADDR(child->sas_addr))
+                            SAS_ADDR(child->sas_addr)) {
                                 ex->ex_phy[i].phy_state= PHY_DEVICE_DISCOVERED;
+                                res = sas_ex_join_wide_port(dev, i);
+                                if (!res)
+                                        SAS_DPRINTK("Attaching ex phy%d to wide port %016llx\n",
+                                                    i, SAS_ADDR(ex->ex_phy[i].attached_sas_addr));
+
+                        }
                 }
+                res = 0;
         }
 
         return res;
@@ -1598,7 +1609,7 @@ static int sas_get_phy_attached_sas_addr(struct domain_device *dev,
 }
 
 static int sas_find_bcast_phy(struct domain_device *dev, int *phy_id,
-                              int from_phy)
+                              int from_phy, bool update)
 {
         struct expander_device *ex = &dev->ex_dev;
         int res = 0;
@@ -1611,7 +1622,9 @@ static int sas_find_bcast_phy(struct domain_device *dev, int *phy_id,
                 if (res)
                         goto out;
                 else if (phy_change_count != ex->ex_phy[i].phy_change_count) {
-                        ex->ex_phy[i].phy_change_count = phy_change_count;
+                        if (update)
+                                ex->ex_phy[i].phy_change_count =
+                                        phy_change_count;
                         *phy_id = i;
                         return 0;
                 }
@@ -1653,31 +1666,52 @@ out:
         kfree(rg_req);
         return res;
 }
+/**
+ * sas_find_bcast_dev -  find the device issue BROADCAST(CHANGE).
+ * @dev:domain device to be detect.
+ * @src_dev: the device which originated BROADCAST(CHANGE).
+ *
+ * Add self-configuration expander suport. Suppose two expander cascading,
+ * when the first level expander is self-configuring, hotplug the disks in
+ * second level expander, BROADCAST(CHANGE) will not only be originated
+ * in the second level expander, but also be originated in the first level
+ * expander (see SAS protocol SAS 2r-14, 7.11 for detail), it is to say,
+ * expander changed count in two level expanders will all increment at least
+ * once, but the phy which chang count has changed is the source device which
+ * we concerned.
+ */
 
 static int sas_find_bcast_dev(struct domain_device *dev,
                               struct domain_device **src_dev)
 {
         struct expander_device *ex = &dev->ex_dev;
         int ex_change_count = -1;
+        int phy_id = -1;
         int res;
+        struct domain_device *ch;
 
         res = sas_get_ex_change_count(dev, &ex_change_count);
         if (res)
                 goto out;
-        if (ex_change_count != -1 &&
-            ex_change_count != ex->ex_change_count) {
-                *src_dev = dev;
-                ex->ex_change_count = ex_change_count;
-        } else {
-                struct domain_device *ch;
-
-                list_for_each_entry(ch, &ex->children, siblings) {
-                        if (ch->dev_type == EDGE_DEV ||
-                            ch->dev_type == FANOUT_DEV) {
-                                res = sas_find_bcast_dev(ch, src_dev);
-                                if (src_dev)
-                                        return res;
-                        }
+        if (ex_change_count != -1 && ex_change_count != ex->ex_change_count) {
+                /* Just detect if this expander phys phy change count changed,
+                * in order to determine if this expander originate BROADCAST,
+                * and do not update phy change count field in our structure.
+                */
+                res = sas_find_bcast_phy(dev, &phy_id, 0, false);
+                if (phy_id != -1) {
+                        *src_dev = dev;
+                        ex->ex_change_count = ex_change_count;
+                        SAS_DPRINTK("Expander phy change count has changed\n");
+                        return res;
+                } else
+                        SAS_DPRINTK("Expander phys DID NOT change\n");
+        }
+        list_for_each_entry(ch, &ex->children, siblings) {
+                if (ch->dev_type == EDGE_DEV || ch->dev_type == FANOUT_DEV) {
+                        res = sas_find_bcast_dev(ch, src_dev);
+                        if (src_dev)
+                                return res;
                 }
         }
 out:
@@ -1700,24 +1734,26 @@ static void sas_unregister_ex_tree(struct domain_device *dev)
 }
 
 static void sas_unregister_devs_sas_addr(struct domain_device *parent,
-                                         int phy_id)
+                                         int phy_id, bool last)
 {
         struct expander_device *ex_dev = &parent->ex_dev;
         struct ex_phy *phy = &ex_dev->ex_phy[phy_id];
         struct domain_device *child, *n;
-
-        list_for_each_entry_safe(child, n, &ex_dev->children, siblings) {
-                if (SAS_ADDR(child->sas_addr) ==
-                    SAS_ADDR(phy->attached_sas_addr)) {
-                        if (child->dev_type == EDGE_DEV ||
-                            child->dev_type == FANOUT_DEV)
-                                sas_unregister_ex_tree(child);
-                        else
-                                sas_unregister_dev(child);
-                        break;
+        if (last) {
+                list_for_each_entry_safe(child, n,
+                        &ex_dev->children, siblings) {
+                        if (SAS_ADDR(child->sas_addr) ==
+                            SAS_ADDR(phy->attached_sas_addr)) {
+                                if (child->dev_type == EDGE_DEV ||
+                                    child->dev_type == FANOUT_DEV)
+                                        sas_unregister_ex_tree(child);
+                                else
+                                        sas_unregister_dev(child);
+                                break;
+                        }
                 }
+                sas_disable_routing(parent, phy->attached_sas_addr);
         }
-        sas_disable_routing(parent, phy->attached_sas_addr);
         memset(phy->attached_sas_addr, 0, SAS_ADDR_SIZE);
         sas_port_delete_phy(phy->port, phy->phy);
         if (phy->port->num_phys == 0)
@@ -1770,15 +1806,31 @@ static int sas_discover_new(struct domain_device *dev, int phy_id)
 {
         struct ex_phy *ex_phy = &dev->ex_dev.ex_phy[phy_id];
         struct domain_device *child;
-        int res;
+        bool found = false;
+        int res, i;
 
         SAS_DPRINTK("ex %016llx phy%d new device attached\n",
                     SAS_ADDR(dev->sas_addr), phy_id);
         res = sas_ex_phy_discover(dev, phy_id);
         if (res)
                 goto out;
+        /* to support the wide port inserted */
+        for (i = 0; i < dev->ex_dev.num_phys; i++) {
+                struct ex_phy *ex_phy_temp = &dev->ex_dev.ex_phy[i];
+                if (i == phy_id)
+                        continue;
+                if (SAS_ADDR(ex_phy_temp->attached_sas_addr) ==
+                    SAS_ADDR(ex_phy->attached_sas_addr)) {
+                        found = true;
+                        break;
+                }
+        }
+        if (found) {
+                sas_ex_join_wide_port(dev, phy_id);
+                return 0;
+        }
         res = sas_ex_discover_devices(dev, phy_id);
-        if (res)
+        if (!res)
                 goto out;
         list_for_each_entry(child, &dev->ex_dev.children, siblings) {
                 if (SAS_ADDR(child->sas_addr) ==
@@ -1793,7 +1845,7 @@ out:
         return res;
 }
 
-static int sas_rediscover_dev(struct domain_device *dev, int phy_id)
+static int sas_rediscover_dev(struct domain_device *dev, int phy_id, bool last)
 {
         struct expander_device *ex = &dev->ex_dev;
         struct ex_phy *phy = &ex->ex_phy[phy_id];
@@ -1804,11 +1856,11 @@ static int sas_rediscover_dev(struct domain_device *dev, int phy_id)
         switch (res) {
         case SMP_RESP_NO_PHY:
                 phy->phy_state = PHY_NOT_PRESENT;
-                sas_unregister_devs_sas_addr(dev, phy_id);
+                sas_unregister_devs_sas_addr(dev, phy_id, last);
                 goto out; break;
         case SMP_RESP_PHY_VACANT:
                 phy->phy_state = PHY_VACANT;
-                sas_unregister_devs_sas_addr(dev, phy_id);
+                sas_unregister_devs_sas_addr(dev, phy_id, last);
                 goto out; break;
         case SMP_RESP_FUNC_ACC:
                 break;
@@ -1816,7 +1868,7 @@ static int sas_rediscover_dev(struct domain_device *dev, int phy_id)
 
         if (SAS_ADDR(attached_sas_addr) == 0) {
                 phy->phy_state = PHY_EMPTY;
-                sas_unregister_devs_sas_addr(dev, phy_id);
+                sas_unregister_devs_sas_addr(dev, phy_id, last);
         } else if (SAS_ADDR(attached_sas_addr) ==
                    SAS_ADDR(phy->attached_sas_addr)) {
                 SAS_DPRINTK("ex %016llx phy 0x%x broadcast flutter\n",
@@ -1828,12 +1880,27 @@ out:
         return res;
 }
 
+/**
+ * sas_rediscover - revalidate the domain.
+ * @dev:domain device to be detect.
+ * @phy_id: the phy id will be detected.
+ *
+ * NOTE: this process _must_ quit (return) as soon as any connection
+ * errors are encountered.  Connection recovery is done elsewhere.
+ * Discover process only interrogates devices in order to discover the
+ * domain.For plugging out, we un-register the device only when it is
+ * the last phy in the port, for other phys in this port, we just delete it
+ * from the port.For inserting, we do discovery when it is the
+ * first phy,for other phys in this port, we add it to the port to
+ * forming the wide-port.
+ */
 static int sas_rediscover(struct domain_device *dev, const int phy_id)
 {
         struct expander_device *ex = &dev->ex_dev;
         struct ex_phy *changed_phy = &ex->ex_phy[phy_id];
         int res = 0;
         int i;
+        bool last = true;       /* is this the last phy of the port */
 
         SAS_DPRINTK("ex %016llx phy%d originated BROADCAST(CHANGE)\n",
                     SAS_ADDR(dev->sas_addr), phy_id);
@@ -1848,13 +1915,13 @@ static int sas_rediscover(struct domain_device *dev, const int phy_id)
                             SAS_ADDR(changed_phy->attached_sas_addr)) {
                                 SAS_DPRINTK("phy%d part of wide port with "
                                             "phy%d\n", phy_id, i);
-                                goto out;
+                                last = false;
+                                break;
                         }
                 }
-                res = sas_rediscover_dev(dev, phy_id);
+                res = sas_rediscover_dev(dev, phy_id, last);
         } else
                 res = sas_discover_new(dev, phy_id);
-out:
         return res;
 }
 
@@ -1881,7 +1948,7 @@ int sas_ex_revalidate_domain(struct domain_device *port_dev)
 
                 do {
                         phy_id = -1;
-                        res = sas_find_bcast_phy(dev, &phy_id, i);
+                        res = sas_find_bcast_phy(dev, &phy_id, i, true);
                         if (phy_id == -1)
                                 break;
                         res = sas_rediscover(dev, phy_id);
diff --git a/drivers/scsi/libsas/sas_port.c b/drivers/scsi/libsas/sas_port.c
index e6ac59c023f1..fe8b74c706d2 100644
--- a/drivers/scsi/libsas/sas_port.c
+++ b/drivers/scsi/libsas/sas_port.c
@@ -56,7 +56,7 @@ static void sas_form_port(struct asd_sas_phy *phy)
                 }
         }
 
-        /* find a port */
+        /* see if the phy should be part of a wide port */
         spin_lock_irqsave(&sas_ha->phy_port_lock, flags);
         for (i = 0; i < sas_ha->num_phys; i++) {
                 port = sas_ha->sas_port[i];
@@ -69,12 +69,23 @@ static void sas_form_port(struct asd_sas_phy *phy)
                         SAS_DPRINTK("phy%d matched wide port%d\n", phy->id,
                                     port->id);
                         break;
-                } else if (*(u64 *) port->sas_addr == 0 && port->num_phys==0) {
-                        memcpy(port->sas_addr, phy->sas_addr, SAS_ADDR_SIZE);
-                        break;
                 }
                 spin_unlock(&port->phy_list_lock);
         }
+        /* The phy does not match any existing port, create a new one */
+        if (i == sas_ha->num_phys) {
+                for (i = 0; i < sas_ha->num_phys; i++) {
+                        port = sas_ha->sas_port[i];
+                        spin_lock(&port->phy_list_lock);
+                        if (*(u64 *)port->sas_addr == 0
+                                && port->num_phys == 0) {
+                                memcpy(port->sas_addr, phy->sas_addr,
+                                        SAS_ADDR_SIZE);
+                                break;
+                        }
+                        spin_unlock(&port->phy_list_lock);
+                }
+        }
 
         if (i >= sas_ha->num_phys) {
                 printk(KERN_NOTICE "%s: couldn't find a free port, bug?\n",
diff --git a/drivers/scsi/mac53c94.c b/drivers/scsi/mac53c94.c
index b12ad7c7c673..18735b39b3d3 100644
--- a/drivers/scsi/mac53c94.c
+++ b/drivers/scsi/mac53c94.c
@@ -75,8 +75,9 @@ static int mac53c94_queue(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *
                 int i;
                 printk(KERN_DEBUG "mac53c94_queue %p: command is", cmd);
                 for (i = 0; i < cmd->cmd_len; ++i)
-                        printk(" %.2x", cmd->cmnd[i]);
-                printk("\n" KERN_DEBUG "use_sg=%d request_bufflen=%d request_buffer=%p\n",
+                        printk(KERN_CONT " %.2x", cmd->cmnd[i]);
+                printk(KERN_CONT "\n");
+                printk(KERN_DEBUG "use_sg=%d request_bufflen=%d request_buffer=%p\n",
                        scsi_sg_count(cmd), scsi_bufflen(cmd), scsi_sglist(cmd));
         }
 #endif
diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c
index 650bcef08f2a..cd78c501803a 100644
--- a/drivers/scsi/qla2xxx/qla_mid.c
+++ b/drivers/scsi/qla2xxx/qla_mid.c
@@ -9,7 +9,6 @@
 
 #include <linux/moduleparam.h>
 #include <linux/vmalloc.h>
-#include <linux/smp_lock.h>
 #include <linux/list.h>
 
 #include <scsi/scsi_tcq.h>
diff --git a/drivers/scsi/qla4xxx/ql4_dbg.c b/drivers/scsi/qla4xxx/ql4_dbg.c
index fcc184cd066d..cbceb0ebabf7 100644
--- a/drivers/scsi/qla4xxx/ql4_dbg.c
+++ b/drivers/scsi/qla4xxx/ql4_dbg.c
@@ -15,19 +15,18 @@ void qla4xxx_dump_buffer(void *b, uint32_t size)
         uint32_t cnt;
         uint8_t *c = b;
 
-        printk(" 0   1   2   3   4   5   6   7   8   9  Ah  Bh  Ch  Dh  Eh  "
+        printk(" 0   1   2   3   4   5   6   7   8   9  Ah  Bh  Ch  Dh  Eh  "
                "Fh\n");
         printk("------------------------------------------------------------"
                "--\n");
-        for (cnt = 0; cnt < size; cnt++, c++) {
-                printk(KERN_DEBUG "%02x", *c);
-                if (!(cnt % 16))
-                        printk(KERN_DEBUG "\n");
+        for (cnt = 0; cnt < size; c++) {
+                printk(KERN_INFO "%02x", *c);
+                if (!(++cnt % 16))
+                        printk(KERN_INFO "\n");
 
                 else
-                        printk(KERN_DEBUG "  ");
+                        printk(KERN_INFO "  ");
         }
-        if (cnt % 16)
-                printk(KERN_DEBUG "\n");
+        printk(KERN_INFO "\n");
 }
 
diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h
index b586f27c3bd4..81b5f29254e2 100644
--- a/drivers/scsi/qla4xxx/ql4_def.h
+++ b/drivers/scsi/qla4xxx/ql4_def.h
@@ -100,7 +100,6 @@
 #define MAX_SRBS                MAX_CMDS_TO_RISC
 #define MBOX_AEN_REG_COUNT      5
 #define MAX_INIT_RETRIES        5
-#define IOCB_HIWAT_CUSHION      16
 
 /*
  * Buffer sizes
@@ -184,6 +183,11 @@ struct srb {
         uint16_t cc_stat;
         u_long r_start;         /* Time we recieve a cmd from OS */
         u_long u_start;         /* Time when we handed the cmd to F/W */
+
+        /* Used for extended sense / status continuation */
+        uint8_t *req_sense_ptr;
+        uint16_t req_sense_len;
+        uint16_t reserved2;
 };
 
 /*
@@ -302,7 +306,6 @@ struct scsi_qla_host {
         uint32_t tot_ddbs;
 
         uint16_t        iocb_cnt;
-        uint16_t        iocb_hiwat;
 
         /* SRB cache. */
 #define SRB_MIN_REQ     128
@@ -436,6 +439,8 @@ struct scsi_qla_host {
         /* Map ddb_list entry by FW ddb index */
         struct ddb_entry *fw_ddb_index_map[MAX_DDB_ENTRIES];
 
+        /* Saved srb for status continuation entry processing */
+        struct srb *status_srb;
 };
 
 static inline int is_qla4010(struct scsi_qla_host *ha)
diff --git a/drivers/scsi/qla4xxx/ql4_fw.h b/drivers/scsi/qla4xxx/ql4_fw.h
index 1b667a70cffa..9cd7a608df38 100644
--- a/drivers/scsi/qla4xxx/ql4_fw.h
+++ b/drivers/scsi/qla4xxx/ql4_fw.h
@@ -572,6 +572,7 @@ struct conn_event_log_entry {
  *************************************************************************/
 #define IOCB_MAX_CDB_LEN            16  /* Bytes in a CBD */
 #define IOCB_MAX_SENSEDATA_LEN      32  /* Bytes of sense data */
+#define IOCB_MAX_EXT_SENSEDATA_LEN  60  /* Bytes of extended sense data */
 
 /* IOCB header structure */
 struct qla4_header {
@@ -733,6 +734,12 @@ struct status_entry {
 
 };
 
+/* Status Continuation entry */
+struct status_cont_entry {
+       struct qla4_header hdr; /* 00-03 */
+       uint8_t ext_sense_data[IOCB_MAX_EXT_SENSEDATA_LEN]; /* 04-63 */
+};
+
 struct passthru0 {
         struct qla4_header hdr;                /* 00-03 */
         uint32_t handle;        /* 04-07 */
diff --git a/drivers/scsi/qla4xxx/ql4_iocb.c b/drivers/scsi/qla4xxx/ql4_iocb.c
index 912a67494adf..e0c32159749c 100644
--- a/drivers/scsi/qla4xxx/ql4_iocb.c
+++ b/drivers/scsi/qla4xxx/ql4_iocb.c
@@ -10,9 +10,42 @@
 #include "ql4_dbg.h"
 #include "ql4_inline.h"
 
-
 #include <scsi/scsi_tcq.h>
 
+static int
+qla4xxx_space_in_req_ring(struct scsi_qla_host *ha, uint16_t req_cnt)
+{
+        uint16_t cnt;
+
+        /* Calculate number of free request entries. */
+        if ((req_cnt + 2) >= ha->req_q_count) {
+                cnt = (uint16_t) le32_to_cpu(ha->shadow_regs->req_q_out);
+                if (ha->request_in < cnt)
+                        ha->req_q_count = cnt - ha->request_in;
+                else
+                        ha->req_q_count = REQUEST_QUEUE_DEPTH -
+                                                (ha->request_in - cnt);
+        }
+
+        /* Check if room for request in request ring. */
+        if ((req_cnt + 2) < ha->req_q_count)
+                return 1;
+        else
+                return 0;
+}
+
+static void qla4xxx_advance_req_ring_ptr(struct scsi_qla_host *ha)
+{
+        /* Advance request queue pointer */
+        if (ha->request_in == (REQUEST_QUEUE_DEPTH - 1)) {
+                ha->request_in = 0;
+                ha->request_ptr = ha->request_ring;
+        } else {
+                ha->request_in++;
+                ha->request_ptr++;
+        }
+}
+
 /**
  * qla4xxx_get_req_pkt - returns a valid entry in request queue.
  * @ha: Pointer to host adapter structure.
@@ -26,35 +59,18 @@
 static int qla4xxx_get_req_pkt(struct scsi_qla_host *ha,
                                struct queue_entry **queue_entry)
 {
-        uint16_t request_in;
-        uint8_t status = QLA_SUCCESS;
-
-        *queue_entry = ha->request_ptr;
+        uint16_t req_cnt = 1;
 
-        /* get the latest request_in and request_out index */
-        request_in = ha->request_in;
-        ha->request_out = (uint16_t) le32_to_cpu(ha->shadow_regs->req_q_out);
-
-        /* Advance request queue pointer and check for queue full */
-        if (request_in == (REQUEST_QUEUE_DEPTH - 1)) {
-                request_in = 0;
-                ha->request_ptr = ha->request_ring;
-        } else {
-                request_in++;
-                ha->request_ptr++;
-        }
-
-        /* request queue is full, try again later */
-        if ((ha->iocb_cnt + 1) >= ha->iocb_hiwat) {
-                /* restore request pointer */
-                ha->request_ptr = *queue_entry;
-                status = QLA_ERROR;
-        } else {
-                ha->request_in = request_in;
+        if (qla4xxx_space_in_req_ring(ha, req_cnt)) {
+                *queue_entry = ha->request_ptr;
                 memset(*queue_entry, 0, sizeof(**queue_entry));
+
+                qla4xxx_advance_req_ring_ptr(ha);
+                ha->req_q_count -= req_cnt;
+                return QLA_SUCCESS;
         }
 
-        return status;
+        return QLA_ERROR;
 }
 
 /**
@@ -100,21 +116,14 @@ exit_send_marker:
         return status;
 }
 
-static struct continuation_t1_entry* qla4xxx_alloc_cont_entry(
-        struct scsi_qla_host *ha)
+static struct continuation_t1_entry *
+qla4xxx_alloc_cont_entry(struct scsi_qla_host *ha)
 {
         struct continuation_t1_entry *cont_entry;
 
         cont_entry = (struct continuation_t1_entry *)ha->request_ptr;
 
-        /* Advance request queue pointer */
-        if (ha->request_in == (REQUEST_QUEUE_DEPTH - 1)) {
-                ha->request_in = 0;
-                ha->request_ptr = ha->request_ring;
-        } else {
-                ha->request_in++;
-                ha->request_ptr++;
-        }
+        qla4xxx_advance_req_ring_ptr(ha);
 
         /* Load packet defaults */
         cont_entry->hdr.entryType = ET_CONTINUE;
@@ -197,13 +206,10 @@ int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb)
         struct scsi_cmnd *cmd = srb->cmd;
         struct ddb_entry *ddb_entry;
         struct command_t3_entry *cmd_entry;
-
         int nseg;
         uint16_t tot_dsds;
         uint16_t req_cnt;
-
         unsigned long flags;
-        uint16_t cnt;
         uint32_t index;
         char tag[2];
 
@@ -217,6 +223,19 @@ int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb)
 
         index = (uint32_t)cmd->request->tag;
 
+        /*
+         * Check to see if adapter is online before placing request on
+         * request queue.  If a reset occurs and a request is in the queue,
+         * the firmware will still attempt to process the request, retrieving
+         * garbage for pointers.
+         */
+        if (!test_bit(AF_ONLINE, &ha->flags)) {
+                DEBUG2(printk("scsi%ld: %s: Adapter OFFLINE! "
+                              "Do not issue command.\n",
+                              ha->host_no, __func__));
+                goto queuing_error;
+        }
+
         /* Calculate the number of request entries needed. */
         nseg = scsi_dma_map(cmd);
         if (nseg < 0)
@@ -224,17 +243,7 @@ int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb)
         tot_dsds = nseg;
 
         req_cnt = qla4xxx_calc_request_entries(tot_dsds);
-
-        if (ha->req_q_count < (req_cnt + 2)) {
-                cnt = (uint16_t) le32_to_cpu(ha->shadow_regs->req_q_out);
-                if (ha->request_in < cnt)
-                        ha->req_q_count = cnt - ha->request_in;
-                else
-                        ha->req_q_count = REQUEST_QUEUE_DEPTH -
-                                (ha->request_in - cnt);
-        }
-
-        if (ha->req_q_count < (req_cnt + 2))
+        if (!qla4xxx_space_in_req_ring(ha, req_cnt))
                 goto queuing_error;
 
         /* total iocbs active */
@@ -286,32 +295,10 @@ int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb)
                         break;
                 }
 
-
-        /* Advance request queue pointer */
-        ha->request_in++;
-        if (ha->request_in == REQUEST_QUEUE_DEPTH) {
-                ha->request_in = 0;
-                ha->request_ptr = ha->request_ring;
-        } else
-                ha->request_ptr++;
-
-
+        qla4xxx_advance_req_ring_ptr(ha);
         qla4xxx_build_scsi_iocbs(srb, cmd_entry, tot_dsds);
         wmb();
 
-        /*
-         * Check to see if adapter is online before placing request on
-         * request queue.  If a reset occurs and a request is in the queue,
-         * the firmware will still attempt to process the request, retrieving
-         * garbage for pointers.
-         */
-        if (!test_bit(AF_ONLINE, &ha->flags)) {
-                DEBUG2(printk("scsi%ld: %s: Adapter OFFLINE! "
-                              "Do not issue command.\n",
-                              ha->host_no, __func__));
-                goto queuing_error;
-        }
-
         srb->cmd->host_scribble = (unsigned char *)srb;
 
         /* update counters */
diff --git a/drivers/scsi/qla4xxx/ql4_isr.c b/drivers/scsi/qla4xxx/ql4_isr.c
index 799120fcb9be..8025ee16588e 100644
--- a/drivers/scsi/qla4xxx/ql4_isr.c
+++ b/drivers/scsi/qla4xxx/ql4_isr.c
@@ -11,6 +11,98 @@
 #include "ql4_inline.h"
 
 /**
+ * qla4xxx_copy_sense - copy sense data into cmd sense buffer
+ * @ha: Pointer to host adapter structure.
+ * @sts_entry: Pointer to status entry structure.
+ * @srb: Pointer to srb structure.
+ **/
+static void qla4xxx_copy_sense(struct scsi_qla_host *ha,
+                               struct status_entry *sts_entry,
+                               struct srb *srb)
+{
+        struct scsi_cmnd *cmd = srb->cmd;
+        uint16_t sense_len;
+
+        memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
+        sense_len = le16_to_cpu(sts_entry->senseDataByteCnt);
+        if (sense_len == 0)
+                return;
+
+        /* Save total available sense length,
+         * not to exceed cmd's sense buffer size */
+        sense_len = min_t(uint16_t, sense_len, SCSI_SENSE_BUFFERSIZE);
+        srb->req_sense_ptr = cmd->sense_buffer;
+        srb->req_sense_len = sense_len;
+
+        /* Copy sense from sts_entry pkt */
+        sense_len = min_t(uint16_t, sense_len, IOCB_MAX_SENSEDATA_LEN);
+        memcpy(cmd->sense_buffer, sts_entry->senseData, sense_len);
+
+        DEBUG2(printk(KERN_INFO "scsi%ld:%d:%d:%d: %s: sense key = %x, "
+                "ASL= %02x, ASC/ASCQ = %02x/%02x\n", ha->host_no,
+                cmd->device->channel, cmd->device->id,
+                cmd->device->lun, __func__,
+                sts_entry->senseData[2] & 0x0f,
+                sts_entry->senseData[7],
+                sts_entry->senseData[12],
+                sts_entry->senseData[13]));
+
+        DEBUG5(qla4xxx_dump_buffer(cmd->sense_buffer, sense_len));
+        srb->flags |= SRB_GOT_SENSE;
+
+        /* Update srb, in case a sts_cont pkt follows */
+        srb->req_sense_ptr += sense_len;
+        srb->req_sense_len -= sense_len;
+        if (srb->req_sense_len != 0)
+                ha->status_srb = srb;
+        else
+                ha->status_srb = NULL;
+}
+
+/**
+ * qla4xxx_status_cont_entry - Process a Status Continuations entry.
+ * @ha: SCSI driver HA context
+ * @sts_cont: Entry pointer
+ *
+ * Extended sense data.
+ */
+static void
+qla4xxx_status_cont_entry(struct scsi_qla_host *ha,
+                          struct status_cont_entry *sts_cont)
+{
+        struct srb *srb = ha->status_srb;
+        struct scsi_cmnd *cmd;
+        uint8_t sense_len;
+
+        if (srb == NULL)
+                return;
+
+        cmd = srb->cmd;
+        if (cmd == NULL) {
+                DEBUG2(printk(KERN_INFO "scsi%ld: %s: Cmd already returned "
+                        "back to OS srb=%p srb->state:%d\n", ha->host_no,
+                        __func__, srb, srb->state));
+                ha->status_srb = NULL;
+                return;
+        }
+
+        /* Copy sense data. */
+        sense_len = min_t(uint16_t, srb->req_sense_len,
+                          IOCB_MAX_EXT_SENSEDATA_LEN);
+        memcpy(srb->req_sense_ptr, sts_cont->ext_sense_data, sense_len);
+        DEBUG5(qla4xxx_dump_buffer(srb->req_sense_ptr, sense_len));
+
+        srb->req_sense_ptr += sense_len;
+        srb->req_sense_len -= sense_len;
+
+        /* Place command on done queue. */
+        if (srb->req_sense_len == 0) {
+                qla4xxx_srb_compl(ha, srb);
+                ha->status_srb = NULL;
+        }
+}
+
+/**
  * qla4xxx_status_entry - processes status IOCBs
  * @ha: Pointer to host adapter structure.
  * @sts_entry: Pointer to status entry structure.
@@ -23,7 +115,6 @@ static void qla4xxx_status_entry(struct scsi_qla_host *ha,
         struct srb *srb;
         struct ddb_entry *ddb_entry;
         uint32_t residual;
-        uint16_t sensebytecnt;
 
         srb = qla4xxx_del_from_active_array(ha, le32_to_cpu(sts_entry->handle));
         if (!srb) {
@@ -92,24 +183,7 @@ static void qla4xxx_status_entry(struct scsi_qla_host *ha,
                         break;
 
                 /* Copy Sense Data into sense buffer. */
-                memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
-
-                sensebytecnt = le16_to_cpu(sts_entry->senseDataByteCnt);
-                if (sensebytecnt == 0)
-                        break;
-
-                memcpy(cmd->sense_buffer, sts_entry->senseData,
-                       min_t(uint16_t, sensebytecnt, SCSI_SENSE_BUFFERSIZE));
-
-                DEBUG2(printk("scsi%ld:%d:%d:%d: %s: sense key = %x, "
-                              "ASC/ASCQ = %02x/%02x\n", ha->host_no,
-                              cmd->device->channel, cmd->device->id,
-                              cmd->device->lun, __func__,
-                              sts_entry->senseData[2] & 0x0f,
-                              sts_entry->senseData[12],
-                              sts_entry->senseData[13]));
-
-                srb->flags |= SRB_GOT_SENSE;
+                qla4xxx_copy_sense(ha, sts_entry, srb);
                 break;
 
         case SCS_INCOMPLETE:
@@ -176,23 +250,7 @@ static void qla4xxx_status_entry(struct scsi_qla_host *ha,
                                 break;
 
                         /* Copy Sense Data into sense buffer. */
-                        memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
-
-                        sensebytecnt =
-                                le16_to_cpu(sts_entry->senseDataByteCnt);
-                        if (sensebytecnt == 0)
-                                break;
-
-                        memcpy(cmd->sense_buffer, sts_entry->senseData,
-                               min_t(uint16_t, sensebytecnt, SCSI_SENSE_BUFFERSIZE));
-
-                        DEBUG2(printk("scsi%ld:%d:%d:%d: %s: sense key = %x, "
-                                      "ASC/ASCQ = %02x/%02x\n", ha->host_no,
-                                      cmd->device->channel, cmd->device->id,
-                                      cmd->device->lun, __func__,
-                                      sts_entry->senseData[2] & 0x0f,
-                                      sts_entry->senseData[12],
-                                      sts_entry->senseData[13]));
+                        qla4xxx_copy_sense(ha, sts_entry, srb);
                 } else {
                         /*
                          * If RISC reports underrun and target does not
@@ -268,9 +326,10 @@ static void qla4xxx_status_entry(struct scsi_qla_host *ha,
 
 status_entry_exit:
 
-        /* complete the request */
+        /* complete the request, if not waiting for status_continuation pkt */
         srb->cc_stat = sts_entry->completionStatus;
-        qla4xxx_srb_compl(ha, srb);
+        if (ha->status_srb == NULL)
+                qla4xxx_srb_compl(ha, srb);
 }
 
 /**
@@ -305,10 +364,7 @@ static void qla4xxx_process_response_queue(struct scsi_qla_host * ha)
                 /* process entry */
                 switch (sts_entry->hdr.entryType) {
                 case ET_STATUS:
-                        /*
-                         * Common status - Single completion posted in single
-                         * IOSB.
-                         */
+                        /* Common status */
                         qla4xxx_status_entry(ha, sts_entry);
                         break;
 
@@ -316,9 +372,8 @@ static void qla4xxx_process_response_queue(struct scsi_qla_host * ha)
                         break;
 
                 case ET_STATUS_CONTINUATION:
-                        /* Just throw away the status continuation entries */
-                        DEBUG2(printk("scsi%ld: %s: Status Continuation entry "
-                                      "- ignoring\n", ha->host_no, __func__));
+                        qla4xxx_status_cont_entry(ha,
+                                (struct status_cont_entry *) sts_entry);
                         break;
 
                 case ET_COMMAND:
diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c
index 051b0f5e8c8e..09d6d4b76f39 100644
--- a/drivers/scsi/qla4xxx/ql4_mbx.c
+++ b/drivers/scsi/qla4xxx/ql4_mbx.c
@@ -385,16 +385,6 @@ int qla4xxx_get_firmware_status(struct scsi_qla_host * ha)
                               mbox_sts[0]));
                 return QLA_ERROR;
         }
-
-        /* High-water mark of IOCBs */
-        ha->iocb_hiwat = mbox_sts[2];
-        if (ha->iocb_hiwat > IOCB_HIWAT_CUSHION)
-                ha->iocb_hiwat -= IOCB_HIWAT_CUSHION;
-        else
-                dev_info(&ha->pdev->dev, "WARNING!!!  You have less than %d "
-                           "firmware IOCBs available (%d).\n",
-                           IOCB_HIWAT_CUSHION, ha->iocb_hiwat);
-
         return QLA_SUCCESS;
 }
 
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index ec9da6ce8489..40e3cafb3a9c 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -66,6 +66,7 @@ static int qla4xxx_sess_get_param(struct iscsi_cls_session *sess,
 static int qla4xxx_host_get_param(struct Scsi_Host *shost,
                                   enum iscsi_host_param param, char *buf);
 static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session);
+static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc);
 
 /*
  * SCSI host template entry points
@@ -89,6 +90,7 @@ static struct scsi_host_template qla4xxx_driver_template = {
         .eh_device_reset_handler = qla4xxx_eh_device_reset,
         .eh_target_reset_handler = qla4xxx_eh_target_reset,
         .eh_host_reset_handler  = qla4xxx_eh_host_reset,
+        .eh_timed_out           = qla4xxx_eh_cmd_timed_out,
 
         .slave_configure        = qla4xxx_slave_configure,
         .slave_alloc            = qla4xxx_slave_alloc,
@@ -124,6 +126,21 @@ static struct iscsi_transport qla4xxx_iscsi_transport = {
 
 static struct scsi_transport_template *qla4xxx_scsi_transport;
 
+static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
+{
+        struct iscsi_cls_session *session;
+        struct ddb_entry *ddb_entry;
+
+        session = starget_to_session(scsi_target(sc->device));
+        ddb_entry = session->dd_data;
+
+        /* if we are not logged in then the LLD is going to clean up the cmd */
+        if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE)
+                return BLK_EH_RESET_TIMER;
+        else
+                return BLK_EH_NOT_HANDLED;
+}
+
 static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session)
 {
         struct ddb_entry *ddb_entry = session->dd_data;
@@ -904,18 +921,17 @@ static int qla4xxx_recover_adapter(struct scsi_qla_host *ha,
         /* Flush any pending ddb changed AENs */
         qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
 
+        qla4xxx_flush_active_srbs(ha);
+
         /* Reset the firmware.  If successful, function
          * returns with ISP interrupts enabled.
          */
-        if (status == QLA_SUCCESS) {
-                DEBUG2(printk("scsi%ld: %s - Performing soft reset..\n",
-                              ha->host_no, __func__));
-                qla4xxx_flush_active_srbs(ha);
-                if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS)
-                        status = qla4xxx_soft_reset(ha);
-                else
-                        status = QLA_ERROR;
-        }
+        DEBUG2(printk("scsi%ld: %s - Performing soft reset..\n",
+                      ha->host_no, __func__));
+        if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS)
+                status = qla4xxx_soft_reset(ha);
+        else
+                status = QLA_ERROR;
 
         /* Flush any pending ddb changed AENs */
         qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
@@ -1527,11 +1543,9 @@ static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
 {
         struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
         struct ddb_entry *ddb_entry = cmd->device->hostdata;
-        struct srb *sp;
         int ret = FAILED, stat;
 
-        sp = (struct srb *) cmd->SCp.ptr;
-        if (!sp || !ddb_entry)
+        if (!ddb_entry)
                 return ret;
 
         dev_info(&ha->pdev->dev,
@@ -1644,7 +1658,7 @@ static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
         ha = (struct scsi_qla_host *) cmd->device->host->hostdata;
 
         dev_info(&ha->pdev->dev,
-                   "scsi(%ld:%d:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no,
+                   "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no,
                    cmd->device->channel, cmd->device->id, cmd->device->lun);
 
         if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
diff --git a/drivers/scsi/qla4xxx/ql4_version.h b/drivers/scsi/qla4xxx/ql4_version.h
index ab984cb89cea..6980cb279c81 100644
--- a/drivers/scsi/qla4xxx/ql4_version.h
+++ b/drivers/scsi/qla4xxx/ql4_version.h
@@ -5,5 +5,5 @@
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
 
-#define QLA4XXX_DRIVER_VERSION  "5.01.00-k8"
+#define QLA4XXX_DRIVER_VERSION  "5.01.00-k9"
 
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index 2eee9e6e4fe8..292c02f810d0 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -3670,13 +3670,14 @@ static void
 fc_bsg_goose_queue(struct fc_rport *rport)
 {
         int flagset;
+        unsigned long flags;
 
         if (!rport->rqst_q)
                 return;
 
         get_device(&rport->dev);
 
-        spin_lock(rport->rqst_q->queue_lock);
+        spin_lock_irqsave(rport->rqst_q->queue_lock, flags);
         flagset = test_bit(QUEUE_FLAG_REENTER, &rport->rqst_q->queue_flags) &&
                   !test_bit(QUEUE_FLAG_REENTER, &rport->rqst_q->queue_flags);
         if (flagset)
@@ -3684,7 +3685,7 @@ fc_bsg_goose_queue(struct fc_rport *rport)
         __blk_run_queue(rport->rqst_q);
         if (flagset)
                 queue_flag_clear(QUEUE_FLAG_REENTER, rport->rqst_q);
-        spin_unlock(rport->rqst_q->queue_lock);
+        spin_unlock_irqrestore(rport->rqst_q->queue_lock, flags);
 
         put_device(&rport->dev);
 }
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 783e33c65eb7..b47240ca4b19 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -990,7 +990,7 @@ int iscsi_offload_mesg(struct Scsi_Host *shost,
         struct iscsi_uevent *ev;
         int len = NLMSG_SPACE(sizeof(*ev) + data_size);
 
-        skb = alloc_skb(len, GFP_NOIO);
+        skb = alloc_skb(len, GFP_ATOMIC);
         if (!skb) {
                 printk(KERN_ERR "can not deliver iscsi offload message:OOM\n");
                 return -ENOMEM;
@@ -1012,7 +1012,7 @@ int iscsi_offload_mesg(struct Scsi_Host *shost,
 
         memcpy((char *)ev + sizeof(*ev), data, data_size);
 
-        return iscsi_multicast_skb(skb, ISCSI_NL_GRP_UIP, GFP_NOIO);
+        return iscsi_multicast_skb(skb, ISCSI_NL_GRP_UIP, GFP_ATOMIC);
 }
 EXPORT_SYMBOL_GPL(iscsi_offload_mesg);
 
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 5616cd780ff3..b7b9fec67a98 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1840,6 +1840,18 @@ static void sd_read_block_characteristics(struct scsi_disk *sdkp)
         kfree(buffer);
 }
 
+static int sd_try_extended_inquiry(struct scsi_device *sdp)
+{
+        /*
+         * Although VPD inquiries can go to SCSI-2 type devices,
+         * some USB ones crash on receiving them, and the pages
+         * we currently ask for are for SPC-3 and beyond
+         */
+        if (sdp->scsi_level > SCSI_SPC_2)
+                return 1;
+        return 0;
+}
+
 /**
  *      sd_revalidate_disk - called the first time a new disk is seen,
  *      performs disk spin up, read_capacity, etc.
@@ -1877,8 +1889,12 @@ static int sd_revalidate_disk(struct gendisk *disk)
          */
         if (sdkp->media_present) {
                 sd_read_capacity(sdkp, buffer);
-                sd_read_block_limits(sdkp);
-                sd_read_block_characteristics(sdkp);
+
+                if (sd_try_extended_inquiry(sdp)) {
+                        sd_read_block_limits(sdkp);
+                        sd_read_block_characteristics(sdkp);
+                }
+
                 sd_read_write_protect_flag(sdkp, buffer);
                 sd_read_cache_type(sdkp, buffer);
                 sd_read_app_tag_own(sdkp, buffer);
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 8201387b4daa..9230402c45af 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -210,13 +210,11 @@ static void sg_put_dev(Sg_device *sdp);
 static int sg_allow_access(struct file *filp, unsigned char *cmd)
 {
         struct sg_fd *sfp = (struct sg_fd *)filp->private_data;
-        struct request_queue *q = sfp->parentdp->device->request_queue;
 
         if (sfp->parentdp->device->type == TYPE_SCANNER)
                 return 0;
 
-        return blk_verify_command(&q->cmd_filter,
-                                  cmd, filp->f_mode & FMODE_WRITE);
+        return blk_verify_command(cmd, filp->f_mode & FMODE_WRITE);
 }
 
 static int
@@ -621,7 +619,7 @@ sg_write(struct file *filp, const char __user *buf, size_t count, loff_t * ppos)
                 if (strcmp(current->comm, cmd) && printk_ratelimit()) {
                         printk(KERN_WARNING
                                "sg_write: data in/out %d/%d bytes for SCSI command 0x%x--"
-                               "guessing data in;\n" KERN_WARNING "   "
+                               "guessing data in;\n   "
                                "program %s not setting count and/or reply_len properly\n",
                                old_hdr.reply_len - (int)SZ_SG_HEADER,
                                input_size, (unsigned int) cmnd[0],
@@ -1658,6 +1656,10 @@ static int sg_start_req(Sg_request *srp, unsigned char *cmd)
                 md->nr_entries = req_schp->k_use_sg;
                 md->offset = 0;
                 md->null_mapped = hp->dxferp ? 0 : 1;
+                if (dxfer_dir == SG_DXFER_TO_FROM_DEV)
+                        md->from_user = 1;
+                else
+                        md->from_user = 0;
         }
 
         if (iov_count) {
diff --git a/drivers/scsi/sun3_NCR5380.c b/drivers/scsi/sun3_NCR5380.c
index bcaba86060ab..75da6e58ce55 100644
--- a/drivers/scsi/sun3_NCR5380.c
+++ b/drivers/scsi/sun3_NCR5380.c
@@ -2860,8 +2860,7 @@ static int NCR5380_abort(struct scsi_cmnd *cmd)
  */
 
     local_irq_restore(flags);
-    printk(KERN_INFO "scsi%d: warning : SCSI command probably completed successfully\n"
-           KERN_INFO "        before abortion\n", HOSTNO); 
+    printk(KERN_INFO "scsi%d: warning : SCSI command probably completed successfully before abortion\n", HOSTNO); 
 
     return SCSI_ABORT_NOT_RUNNING;
 }
diff --git a/drivers/scsi/zalon.c b/drivers/scsi/zalon.c
index 97f3158fa7b5..27e84e4b1fa9 100644
--- a/drivers/scsi/zalon.c
+++ b/drivers/scsi/zalon.c
@@ -134,7 +134,7 @@ zalon_probe(struct parisc_device *dev)
 
         host = ncr_attach(&zalon7xx_template, unit, &device);
         if (!host)
-                goto fail;
+                return -ENODEV;
 
         if (request_irq(dev->irq, ncr53c8xx_intr, IRQF_SHARED, "zalon", host)) {
           dev_printk(KERN_ERR, &dev->dev, "irq problem with %d, detaching\n ",
diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c
index a07015d646dd..e7108e75653d 100644
--- a/drivers/serial/8250_pci.c
+++ b/drivers/serial/8250_pci.c
@@ -60,11 +60,12 @@ struct serial_private {
 
 static void moan_device(const char *str, struct pci_dev *dev)
 {
-        printk(KERN_WARNING "%s: %s\n"
-               KERN_WARNING "Please send the output of lspci -vv, this\n"
-               KERN_WARNING "message (0x%04x,0x%04x,0x%04x,0x%04x), the\n"
-               KERN_WARNING "manufacturer and name of serial board or\n"
-               KERN_WARNING "modem board to rmk+serial@arm.linux.org.uk.\n",
+        printk(KERN_WARNING
+               "%s: %s\n"
+               "Please send the output of lspci -vv, this\n"
+               "message (0x%04x,0x%04x,0x%04x,0x%04x), the\n"
+               "manufacturer and name of serial board or\n"
+               "modem board to rmk+serial@arm.linux.org.uk.\n",
                pci_name(dev), str, dev->vendor, dev->device,
                dev->subsystem_vendor, dev->subsystem_device);
 }
@@ -759,6 +760,8 @@ static int pci_netmos_init(struct pci_dev *dev)
         /* subdevice 0x00PS means <P> parallel, <S> serial */
         unsigned int num_serial = dev->subsystem_device & 0xf;
 
+        if (dev->device == PCI_DEVICE_ID_NETMOS_9901)
+                return 0;
         if (dev->subsystem_vendor == PCI_VENDOR_ID_IBM &&
                         dev->subsystem_device == 0x0299)
                 return 0;
@@ -3557,6 +3560,10 @@ static struct pci_device_id serial_pci_tbl[] = {
                 PCI_VENDOR_ID_IBM, 0x0299,
                 0, 0, pbn_b0_bt_2_115200 },
 
+        {       PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9901,
+                0xA000, 0x1000,
+                0, 0, pbn_b0_1_115200 },
+
         /*
          * These entries match devices with class COMMUNICATION_SERIAL,
          * COMMUNICATION_MODEM or COMMUNICATION_MULTISERIAL
diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
index 338b15c0a548..607d43a31048 100644
--- a/drivers/serial/atmel_serial.c
+++ b/drivers/serial/atmel_serial.c
@@ -1551,6 +1551,7 @@ static int __devinit atmel_serial_probe(struct platform_device *pdev)
         if (ret)
                 goto err_add_port;
 
+#ifdef CONFIG_SERIAL_ATMEL_CONSOLE
         if (atmel_is_console_port(&port->uart)
                         && ATMEL_CONSOLE_DEVICE->flags & CON_ENABLED) {
                 /*
@@ -1559,6 +1560,7 @@ static int __devinit atmel_serial_probe(struct platform_device *pdev)
                  */
                 clk_disable(port->clk);
         }
+#endif
 
         device_init_wakeup(&pdev->dev, 1);
         platform_set_drvdata(pdev, port);
diff --git a/drivers/serial/bfin_sport_uart.c b/drivers/serial/bfin_sport_uart.c
index 34b4ae0fe760..c108b1a0ce98 100644
--- a/drivers/serial/bfin_sport_uart.c
+++ b/drivers/serial/bfin_sport_uart.c
@@ -236,7 +236,6 @@ static int sport_startup(struct uart_port *port)
         int retval;
 
         pr_debug("%s enter\n", __func__);
-        memset(buffer, 20, '\0');
         snprintf(buffer, 20, "%s rx", up->name);
         retval = request_irq(up->rx_irq, sport_uart_rx_irq, IRQF_SAMPLE_RANDOM, buffer, up);
         if (retval) {
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm2.c b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
index 141c0a3333ad..a9802e76b5fa 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm2.c
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
@@ -132,7 +132,7 @@ int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
         memsz = L1_CACHE_ALIGN(pinfo->rx_nrfifos * pinfo->rx_fifosize) +
             L1_CACHE_ALIGN(pinfo->tx_nrfifos * pinfo->tx_fifosize);
         if (is_con) {
-                mem_addr = alloc_bootmem(memsz);
+                mem_addr = kzalloc(memsz, GFP_NOWAIT);
                 dma_addr = virt_to_bus(mem_addr);
         }
         else
diff --git a/drivers/serial/msm_serial.c b/drivers/serial/msm_serial.c
index 698048f64f5e..f7c24baa1416 100644
--- a/drivers/serial/msm_serial.c
+++ b/drivers/serial/msm_serial.c
@@ -730,7 +730,6 @@ static int __devexit msm_serial_remove(struct platform_device *pdev)
 }
 
 static struct platform_driver msm_platform_driver = {
-        .probe = msm_serial_probe,
         .remove = msm_serial_remove,
         .driver = {
                 .name = "msm_serial",
diff --git a/drivers/serial/s3c2400.c b/drivers/serial/s3c2400.c
index fb00ed5296e6..fed1a9a1ffb4 100644
--- a/drivers/serial/s3c2400.c
+++ b/drivers/serial/s3c2400.c
@@ -76,7 +76,7 @@ static int s3c2400_serial_probe(struct platform_device *dev)
         return s3c24xx_serial_probe(dev, &s3c2400_uart_inf);
 }
 
-static struct platform_driver s3c2400_serial_drv = {
+static struct platform_driver s3c2400_serial_driver = {
         .probe          = s3c2400_serial_probe,
         .remove         = __devexit_p(s3c24xx_serial_remove),
         .driver         = {
@@ -85,16 +85,16 @@ static struct platform_driver s3c2400_serial_drv = {
         },
 };
 
-s3c24xx_console_init(&s3c2400_serial_drv, &s3c2400_uart_inf);
+s3c24xx_console_init(&s3c2400_serial_driver, &s3c2400_uart_inf);
 
 static inline int s3c2400_serial_init(void)
 {
-        return s3c24xx_serial_init(&s3c2400_serial_drv, &s3c2400_uart_inf);
+        return s3c24xx_serial_init(&s3c2400_serial_driver, &s3c2400_uart_inf);
 }
 
 static inline void s3c2400_serial_exit(void)
 {
-        platform_driver_unregister(&s3c2400_serial_drv);
+        platform_driver_unregister(&s3c2400_serial_driver);
 }
 
 module_init(s3c2400_serial_init);
diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c
index b5d7cbcba2ae..c99f0821cae3 100644
--- a/drivers/serial/s3c2410.c
+++ b/drivers/serial/s3c2410.c
@@ -88,7 +88,7 @@ static int s3c2410_serial_probe(struct platform_device *dev)
         return s3c24xx_serial_probe(dev, &s3c2410_uart_inf);
 }
 
-static struct platform_driver s3c2410_serial_drv = {
+static struct platform_driver s3c2410_serial_driver = {
         .probe          = s3c2410_serial_probe,
         .remove         = __devexit_p(s3c24xx_serial_remove),
         .driver         = {
@@ -97,16 +97,16 @@ static struct platform_driver s3c2410_serial_drv = {
         },
 };
 
-s3c24xx_console_init(&s3c2410_serial_drv, &s3c2410_uart_inf);
+s3c24xx_console_init(&s3c2410_serial_driver, &s3c2410_uart_inf);
 
 static int __init s3c2410_serial_init(void)
 {
-        return s3c24xx_serial_init(&s3c2410_serial_drv, &s3c2410_uart_inf);
+        return s3c24xx_serial_init(&s3c2410_serial_driver, &s3c2410_uart_inf);
 }
 
 static void __exit s3c2410_serial_exit(void)
 {
-        platform_driver_unregister(&s3c2410_serial_drv);
+        platform_driver_unregister(&s3c2410_serial_driver);
 }
 
 module_init(s3c2410_serial_init);
diff --git a/drivers/serial/s3c2412.c b/drivers/serial/s3c2412.c
index 11dcb90bdfef..6e057d8809d3 100644
--- a/drivers/serial/s3c2412.c
+++ b/drivers/serial/s3c2412.c
@@ -121,7 +121,7 @@ static int s3c2412_serial_probe(struct platform_device *dev)
         return s3c24xx_serial_probe(dev, &s3c2412_uart_inf);
 }
 
-static struct platform_driver s3c2412_serial_drv = {
+static struct platform_driver s3c2412_serial_driver = {
         .probe          = s3c2412_serial_probe,
         .remove         = __devexit_p(s3c24xx_serial_remove),
         .driver         = {
@@ -130,16 +130,16 @@ static struct platform_driver s3c2412_serial_drv = {
         },
 };
 
-s3c24xx_console_init(&s3c2412_serial_drv, &s3c2412_uart_inf);
+s3c24xx_console_init(&s3c2412_serial_driver, &s3c2412_uart_inf);
 
 static inline int s3c2412_serial_init(void)
 {
-        return s3c24xx_serial_init(&s3c2412_serial_drv, &s3c2412_uart_inf);
+        return s3c24xx_serial_init(&s3c2412_serial_driver, &s3c2412_uart_inf);
 }
 
 static inline void s3c2412_serial_exit(void)
 {
-        platform_driver_unregister(&s3c2412_serial_drv);
+        platform_driver_unregister(&s3c2412_serial_driver);
 }
 
 module_init(s3c2412_serial_init);
diff --git a/drivers/serial/s3c2440.c b/drivers/serial/s3c2440.c
index 06c5b0cc47a3..69ff5d340f04 100644
--- a/drivers/serial/s3c2440.c
+++ b/drivers/serial/s3c2440.c
@@ -151,7 +151,7 @@ static int s3c2440_serial_probe(struct platform_device *dev)
         return s3c24xx_serial_probe(dev, &s3c2440_uart_inf);
 }
 
-static struct platform_driver s3c2440_serial_drv = {
+static struct platform_driver s3c2440_serial_driver = {
         .probe          = s3c2440_serial_probe,
         .remove         = __devexit_p(s3c24xx_serial_remove),
         .driver         = {
@@ -160,16 +160,16 @@ static struct platform_driver s3c2440_serial_drv = {
         },
 };
 
-s3c24xx_console_init(&s3c2440_serial_drv, &s3c2440_uart_inf);
+s3c24xx_console_init(&s3c2440_serial_driver, &s3c2440_uart_inf);
 
 static int __init s3c2440_serial_init(void)
 {
-        return s3c24xx_serial_init(&s3c2440_serial_drv, &s3c2440_uart_inf);
+        return s3c24xx_serial_init(&s3c2440_serial_driver, &s3c2440_uart_inf);
 }
 
 static void __exit s3c2440_serial_exit(void)
 {
-        platform_driver_unregister(&s3c2440_serial_drv);
+        platform_driver_unregister(&s3c2440_serial_driver);
 }
 
 module_init(s3c2440_serial_init);
diff --git a/drivers/serial/s3c24a0.c b/drivers/serial/s3c24a0.c
index 786a067d62ac..26c49e18bdd1 100644
--- a/drivers/serial/s3c24a0.c
+++ b/drivers/serial/s3c24a0.c
@@ -92,7 +92,7 @@ static int s3c24a0_serial_probe(struct platform_device *dev)
         return s3c24xx_serial_probe(dev, &s3c24a0_uart_inf);
 }
 
-static struct platform_driver s3c24a0_serial_drv = {
+static struct platform_driver s3c24a0_serial_driver = {
         .probe          = s3c24a0_serial_probe,
         .remove         = __devexit_p(s3c24xx_serial_remove),
         .driver         = {
@@ -101,16 +101,16 @@ static struct platform_driver s3c24a0_serial_drv = {
         },
 };
 
-s3c24xx_console_init(&s3c24a0_serial_drv, &s3c24a0_uart_inf);
+s3c24xx_console_init(&s3c24a0_serial_driver, &s3c24a0_uart_inf);
 
 static int __init s3c24a0_serial_init(void)
 {
-        return s3c24xx_serial_init(&s3c24a0_serial_drv, &s3c24a0_uart_inf);
+        return s3c24xx_serial_init(&s3c24a0_serial_driver, &s3c24a0_uart_inf);
 }
 
 static void __exit s3c24a0_serial_exit(void)
 {
-        platform_driver_unregister(&s3c24a0_serial_drv);
+        platform_driver_unregister(&s3c24a0_serial_driver);
 }
 
 module_init(s3c24a0_serial_init);
diff --git a/drivers/serial/s3c6400.c b/drivers/serial/s3c6400.c
index 48f1a3781f0d..4be92ab50058 100644
--- a/drivers/serial/s3c6400.c
+++ b/drivers/serial/s3c6400.c
@@ -122,7 +122,7 @@ static int s3c6400_serial_probe(struct platform_device *dev)
         return s3c24xx_serial_probe(dev, &s3c6400_uart_inf);
 }
 
-static struct platform_driver s3c6400_serial_drv = {
+static struct platform_driver s3c6400_serial_driver = {
         .probe          = s3c6400_serial_probe,
         .remove         = __devexit_p(s3c24xx_serial_remove),
         .driver         = {
@@ -131,16 +131,16 @@ static struct platform_driver s3c6400_serial_drv = {
         },
 };
 
-s3c24xx_console_init(&s3c6400_serial_drv, &s3c6400_uart_inf);
+s3c24xx_console_init(&s3c6400_serial_driver, &s3c6400_uart_inf);
 
 static int __init s3c6400_serial_init(void)
 {
-        return s3c24xx_serial_init(&s3c6400_serial_drv, &s3c6400_uart_inf);
+        return s3c24xx_serial_init(&s3c6400_serial_driver, &s3c6400_uart_inf);
 }
 
 static void __exit s3c6400_serial_exit(void)
 {
-        platform_driver_unregister(&s3c6400_serial_drv);
+        platform_driver_unregister(&s3c6400_serial_driver);
 }
 
 module_init(s3c6400_serial_init);
diff --git a/drivers/serial/serial_ks8695.c b/drivers/serial/serial_ks8695.c
index 998e89dc5aaf..e0665630e4da 100644
--- a/drivers/serial/serial_ks8695.c
+++ b/drivers/serial/serial_ks8695.c
@@ -549,7 +549,7 @@ static struct uart_port ks8695uart_ports[SERIAL_KS8695_NR] = {
                 .mapbase        = KS8695_UART_VA,
                 .iotype         = SERIAL_IO_MEM,
                 .irq            = KS8695_IRQ_UART_TX,
-                .uartclk        = CLOCK_TICK_RATE * 16,
+                .uartclk        = KS8695_CLOCK_RATE * 16,
                 .fifosize       = 16,
                 .ops            = &ks8695uart_pops,
                 .flags          = ASYNC_BOOT_AUTOCONF,
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 66f52674ca0c..8e2feb563347 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -707,24 +707,25 @@ static irqreturn_t sci_br_interrupt(int irq, void *ptr)
 
 static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr)
 {
-        unsigned short ssr_status, scr_status;
+        unsigned short ssr_status, scr_status, err_enabled;
         struct uart_port *port = ptr;
         irqreturn_t ret = IRQ_NONE;
 
         ssr_status = sci_in(port, SCxSR);
         scr_status = sci_in(port, SCSCR);
+        err_enabled = scr_status & (SCI_CTRL_FLAGS_REIE | SCI_CTRL_FLAGS_RIE);
 
         /* Tx Interrupt */
-        if ((ssr_status & 0x0020) && (scr_status & SCI_CTRL_FLAGS_TIE))
+        if ((ssr_status & SCxSR_TDxE(port)) && (scr_status & SCI_CTRL_FLAGS_TIE))
                 ret = sci_tx_interrupt(irq, ptr);
         /* Rx Interrupt */
-        if ((ssr_status & 0x0002) && (scr_status & SCI_CTRL_FLAGS_RIE))
+        if ((ssr_status & SCxSR_RDxF(port)) && (scr_status & SCI_CTRL_FLAGS_RIE))
                 ret = sci_rx_interrupt(irq, ptr);
         /* Error Interrupt */
-        if ((ssr_status & 0x0080) && (scr_status & SCI_CTRL_FLAGS_REIE))
+        if ((ssr_status & SCxSR_ERRORS(port)) && err_enabled)
                 ret = sci_er_interrupt(irq, ptr);
         /* Break Interrupt */
-        if ((ssr_status & 0x0010) && (scr_status & SCI_CTRL_FLAGS_REIE))
+        if ((ssr_status & SCxSR_BRK(port)) && err_enabled)
                 ret = sci_br_interrupt(irq, ptr);
 
         return ret;
diff --git a/drivers/serial/vr41xx_siu.c b/drivers/serial/vr41xx_siu.c
index 0573f3b5175e..dac550e57c29 100644
--- a/drivers/serial/vr41xx_siu.c
+++ b/drivers/serial/vr41xx_siu.c
@@ -1,7 +1,7 @@
 /*
  *  Driver for NEC VR4100 series Serial Interface Unit.
  *
- *  Copyright (C) 2004-2008  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ *  Copyright (C) 2004-2008  Yoichi Yuasa <yuasa@linux-mips.org>
  *
  *  Based on drivers/serial/8250.c, by Russell King.
  *
diff --git a/drivers/spi/omap2_mcspi.c b/drivers/spi/omap2_mcspi.c
index eee4b6e0af2c..9b80ad36dbba 100644
--- a/drivers/spi/omap2_mcspi.c
+++ b/drivers/spi/omap2_mcspi.c
@@ -59,6 +59,8 @@
 
 /* per-register bitmasks: */
 
+#define OMAP2_MCSPI_SYSCONFIG_SMARTIDLE (2 << 3)
+#define OMAP2_MCSPI_SYSCONFIG_ENAWAKEUP (1 << 2)
 #define OMAP2_MCSPI_SYSCONFIG_AUTOIDLE  (1 << 0)
 #define OMAP2_MCSPI_SYSCONFIG_SOFTRESET (1 << 1)
 
@@ -90,6 +92,7 @@
 
 #define OMAP2_MCSPI_CHCTRL_EN           (1 << 0)
 
+#define OMAP2_MCSPI_WAKEUPENABLE_WKEN   (1 << 0)
 
 /* We have 2 DMA channels per CS, one for RX and one for TX */
 struct omap2_mcspi_dma {
@@ -269,7 +272,7 @@ omap2_mcspi_txrx_dma(struct spi_device *spi, struct spi_transfer *xfer)
 
         if (rx != NULL) {
                 omap_set_dma_transfer_params(mcspi_dma->dma_rx_channel,
-                                data_type, element_count, 1,
+                                data_type, element_count - 1, 1,
                                 OMAP_DMA_SYNC_ELEMENT,
                                 mcspi_dma->dma_rx_sync_dev, 1);
 
@@ -300,6 +303,25 @@ omap2_mcspi_txrx_dma(struct spi_device *spi, struct spi_transfer *xfer)
         if (rx != NULL) {
                 wait_for_completion(&mcspi_dma->dma_rx_completion);
                 dma_unmap_single(NULL, xfer->rx_dma, count, DMA_FROM_DEVICE);
+                omap2_mcspi_set_enable(spi, 0);
+                if (likely(mcspi_read_cs_reg(spi, OMAP2_MCSPI_CHSTAT0)
+                                & OMAP2_MCSPI_CHSTAT_RXS)) {
+                        u32 w;
+
+                        w = mcspi_read_cs_reg(spi, OMAP2_MCSPI_RX0);
+                        if (word_len <= 8)
+                                ((u8 *)xfer->rx_buf)[element_count - 1] = w;
+                        else if (word_len <= 16)
+                                ((u16 *)xfer->rx_buf)[element_count - 1] = w;
+                        else /* word_len <= 32 */
+                                ((u32 *)xfer->rx_buf)[element_count - 1] = w;
+                } else {
+                        dev_err(&spi->dev, "DMA RX last word empty");
+                        count -= (word_len <= 8)  ? 1 :
+                                 (word_len <= 16) ? 2 :
+                               /* word_len <= 32 */ 4;
+                }
+                omap2_mcspi_set_enable(spi, 1);
         }
         return count;
 }
@@ -873,8 +895,12 @@ static int __init omap2_mcspi_reset(struct omap2_mcspi *mcspi)
         } while (!(tmp & OMAP2_MCSPI_SYSSTATUS_RESETDONE));
 
         mcspi_write_reg(master, OMAP2_MCSPI_SYSCONFIG,
-                        /* (3 << 8) | (2 << 3) | */
-                        OMAP2_MCSPI_SYSCONFIG_AUTOIDLE);
+                        OMAP2_MCSPI_SYSCONFIG_AUTOIDLE |
+                        OMAP2_MCSPI_SYSCONFIG_ENAWAKEUP |
+                        OMAP2_MCSPI_SYSCONFIG_SMARTIDLE);
+
+        mcspi_write_reg(master, OMAP2_MCSPI_WAKEUPENABLE,
+                        OMAP2_MCSPI_WAKEUPENABLE_WKEN);
 
         omap2_mcspi_set_master_mode(master);
 
diff --git a/drivers/spi/omap_uwire.c b/drivers/spi/omap_uwire.c
index aa90ddb37066..8980a5640bd9 100644
--- a/drivers/spi/omap_uwire.c
+++ b/drivers/spi/omap_uwire.c
@@ -514,6 +514,8 @@ static int __init uwire_probe(struct platform_device *pdev)
         /* the spi->mode bits understood by this driver: */
         master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
 
+        master->flags = SPI_MASTER_HALF_DUPLEX;
+
         master->bus_num = 2;    /* "official" */
         master->num_chipselect = 4;
         master->setup = uwire_setup;
diff --git a/drivers/spi/spi_bitbang.c b/drivers/spi/spi_bitbang.c
index 2a5abc08e857..f1db395dd889 100644
--- a/drivers/spi/spi_bitbang.c
+++ b/drivers/spi/spi_bitbang.c
@@ -258,6 +258,11 @@ static void bitbang_work(struct work_struct *work)
         struct spi_bitbang      *bitbang =
                 container_of(work, struct spi_bitbang, work);
         unsigned long           flags;
+        int                     do_setup = -1;
+        int                     (*setup_transfer)(struct spi_device *,
+                                        struct spi_transfer *);
+
+        setup_transfer = bitbang->setup_transfer;
 
         spin_lock_irqsave(&bitbang->lock, flags);
         bitbang->busy = 1;
@@ -269,8 +274,6 @@ static void bitbang_work(struct work_struct *work)
                 unsigned                tmp;
                 unsigned                cs_change;
                 int                     status;
-                int                     (*setup_transfer)(struct spi_device *,
-                                                struct spi_transfer *);
 
                 m = container_of(bitbang->queue.next, struct spi_message,
                                 queue);
@@ -287,19 +290,19 @@ static void bitbang_work(struct work_struct *work)
                 tmp = 0;
                 cs_change = 1;
                 status = 0;
-                setup_transfer = NULL;
 
                 list_for_each_entry (t, &m->transfers, transfer_list) {
 
-                        /* override or restore speed and wordsize */
-                        if (t->speed_hz || t->bits_per_word) {
-                                setup_transfer = bitbang->setup_transfer;
+                        /* override speed or wordsize? */
+                        if (t->speed_hz || t->bits_per_word)
+                                do_setup = 1;
+
+                        /* init (-1) or override (1) transfer params */
+                        if (do_setup != 0) {
                                 if (!setup_transfer) {
                                         status = -ENOPROTOOPT;
                                         break;
                                 }
-                        }
-                        if (setup_transfer) {
                                 status = setup_transfer(spi, t);
                                 if (status < 0)
                                         break;
@@ -363,9 +366,10 @@ static void bitbang_work(struct work_struct *work)
                 m->status = status;
                 m->complete(m->context);
 
-                /* restore speed and wordsize */
-                if (setup_transfer)
+                /* restore speed and wordsize if it was overridden */
+                if (do_setup == 1)
                         setup_transfer(spi, NULL);
+                do_setup = 0;
 
                 /* normally deactivate chipselect ... unless no error and
                  * cs_change has hinted that the next message will probably
diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c
index 5d869c4d3eb2..606e7a40a8da 100644
--- a/drivers/spi/spidev.c
+++ b/drivers/spi/spidev.c
@@ -58,15 +58,20 @@ static unsigned long	minors[N_SPI_MINORS / BITS_PER_LONG];
 
 
 /* Bit masks for spi_device.mode management.  Note that incorrect
- * settings for CS_HIGH and 3WIRE can cause *lots* of trouble for other
- * devices on a shared bus:  CS_HIGH, because this device will be
- * active when it shouldn't be;  3WIRE, because when active it won't
- * behave as it should.
+ * settings for some settings can cause *lots* of trouble for other
+ * devices on a shared bus:
  *
- * REVISIT should changing those two modes be privileged?
+ *  - CS_HIGH ... this device will be active when it shouldn't be
+ *  - 3WIRE ... when active, it won't behave as it should
+ *  - NO_CS ... there will be no explicit message boundaries; this
+ *      is completely incompatible with the shared bus model
+ *  - READY ... transfers may proceed when they shouldn't.
+ *
+ * REVISIT should changing those flags be privileged?
  */
 #define SPI_MODE_MASK           (SPI_CPHA | SPI_CPOL | SPI_CS_HIGH \
-                                | SPI_LSB_FIRST | SPI_3WIRE | SPI_LOOP)
+                                | SPI_LSB_FIRST | SPI_3WIRE | SPI_LOOP \
+                                | SPI_NO_CS | SPI_READY)
 
 struct spidev_data {
         dev_t                   devt;
diff --git a/drivers/ssb/driver_mipscore.c b/drivers/ssb/driver_mipscore.c
index 3fd3e3b412b6..3c6feed46f6e 100644
--- a/drivers/ssb/driver_mipscore.c
+++ b/drivers/ssb/driver_mipscore.c
@@ -49,29 +49,54 @@ static const u32 ipsflag_irq_shift[] = {
 
 static inline u32 ssb_irqflag(struct ssb_device *dev)
 {
-        return ssb_read32(dev, SSB_TPSFLAG) & SSB_TPSFLAG_BPFLAG;
+        u32 tpsflag = ssb_read32(dev, SSB_TPSFLAG);
+        if (tpsflag)
+                return ssb_read32(dev, SSB_TPSFLAG) & SSB_TPSFLAG_BPFLAG;
+        else
+                /* not irq supported */
+                return 0x3f;
+}
+
+static struct ssb_device *find_device(struct ssb_device *rdev, int irqflag)
+{
+        struct ssb_bus *bus = rdev->bus;
+        int i;
+        for (i = 0; i < bus->nr_devices; i++) {
+                struct ssb_device *dev;
+                dev = &(bus->devices[i]);
+                if (ssb_irqflag(dev) == irqflag)
+                        return dev;
+        }
+        return NULL;
 }
 
 /* Get the MIPS IRQ assignment for a specified device.
  * If unassigned, 0 is returned.
+ * If disabled, 5 is returned.
+ * If not supported, 6 is returned.
  */
 unsigned int ssb_mips_irq(struct ssb_device *dev)
 {
         struct ssb_bus *bus = dev->bus;
+        struct ssb_device *mdev = bus->mipscore.dev;
         u32 irqflag;
         u32 ipsflag;
         u32 tmp;
         unsigned int irq;
 
         irqflag = ssb_irqflag(dev);
+        if (irqflag == 0x3f)
+                return 6;
         ipsflag = ssb_read32(bus->mipscore.dev, SSB_IPSFLAG);
         for (irq = 1; irq <= 4; irq++) {
                 tmp = ((ipsflag & ipsflag_irq_mask[irq]) >> ipsflag_irq_shift[irq]);
                 if (tmp == irqflag)
                         break;
         }
-        if (irq == 5)
-                irq = 0;
+        if (irq == 5) {
+                if ((1 << irqflag) & ssb_read32(mdev, SSB_INTVEC))
+                        irq = 0;
+        }
 
         return irq;
 }
@@ -97,25 +122,56 @@ static void set_irq(struct ssb_device *dev, unsigned int irq)
         struct ssb_device *mdev = bus->mipscore.dev;
         u32 irqflag = ssb_irqflag(dev);
 
+        BUG_ON(oldirq == 6);
+
         dev->irq = irq + 2;
 
-        ssb_dprintk(KERN_INFO PFX
-                    "set_irq: core 0x%04x, irq %d => %d\n",
-                    dev->id.coreid, oldirq, irq);
         /* clear the old irq */
         if (oldirq == 0)
                 ssb_write32(mdev, SSB_INTVEC, (~(1 << irqflag) & ssb_read32(mdev, SSB_INTVEC)));
-        else
+        else if (oldirq != 5)
                 clear_irq(bus, oldirq);
 
         /* assign the new one */
         if (irq == 0) {
                 ssb_write32(mdev, SSB_INTVEC, ((1 << irqflag) | ssb_read32(mdev, SSB_INTVEC)));
         } else {
+                u32 ipsflag = ssb_read32(mdev, SSB_IPSFLAG);
+                if ((ipsflag & ipsflag_irq_mask[irq]) != ipsflag_irq_mask[irq]) {
+                        u32 oldipsflag = (ipsflag & ipsflag_irq_mask[irq]) >> ipsflag_irq_shift[irq];
+                        struct ssb_device *olddev = find_device(dev, oldipsflag);
+                        if (olddev)
+                                set_irq(olddev, 0);
+                }
                 irqflag <<= ipsflag_irq_shift[irq];
-                irqflag |= (ssb_read32(mdev, SSB_IPSFLAG) & ~ipsflag_irq_mask[irq]);
+                irqflag |= (ipsflag & ~ipsflag_irq_mask[irq]);
                 ssb_write32(mdev, SSB_IPSFLAG, irqflag);
         }
+        ssb_dprintk(KERN_INFO PFX
+                    "set_irq: core 0x%04x, irq %d => %d\n",
+                    dev->id.coreid, oldirq+2, irq+2);
+}
+
+static void print_irq(struct ssb_device *dev, unsigned int irq)
+{
+        int i;
+        static const char *irq_name[] = {"2(S)", "3", "4", "5", "6", "D", "I"};
+        ssb_dprintk(KERN_INFO PFX
+                "core 0x%04x, irq :", dev->id.coreid);
+        for (i = 0; i <= 6; i++) {
+                ssb_dprintk(" %s%s", irq_name[i], i==irq?"*":" ");
+        }
+        ssb_dprintk("\n");
+}
+
+static void dump_irq(struct ssb_bus *bus)
+{
+        int i;
+        for (i = 0; i < bus->nr_devices; i++) {
+                struct ssb_device *dev;
+                dev = &(bus->devices[i]);
+                print_irq(dev, ssb_mips_irq(dev));
+        }
 }
 
 static void ssb_mips_serial_init(struct ssb_mipscore *mcore)
@@ -197,16 +253,23 @@ void ssb_mipscore_init(struct ssb_mipscore *mcore)
 
         /* Assign IRQs to all cores on the bus, start with irq line 2, because serial usually takes 1 */
         for (irq = 2, i = 0; i < bus->nr_devices; i++) {
+                int mips_irq;
                 dev = &(bus->devices[i]);
-                dev->irq = ssb_mips_irq(dev) + 2;
+                mips_irq = ssb_mips_irq(dev);
+                if (mips_irq > 4)
+                        dev->irq = 0;
+                else
+                        dev->irq = mips_irq + 2;
+                if (dev->irq > 5)
+                        continue;
                 switch (dev->id.coreid) {
                 case SSB_DEV_USB11_HOST:
                         /* shouldn't need a separate irq line for non-4710, most of them have a proper
                          * external usb controller on the pci */
                         if ((bus->chip_id == 0x4710) && (irq <= 4)) {
                                 set_irq(dev, irq++);
-                                break;
                         }
+                        break;
                         /* fallthrough */
                 case SSB_DEV_PCI:
                 case SSB_DEV_ETHERNET:
@@ -220,6 +283,8 @@ void ssb_mipscore_init(struct ssb_mipscore *mcore)
                         }
                 }
         }
+        ssb_dprintk(KERN_INFO PFX "after irq reconfiguration\n");
+        dump_irq(bus);
 
         ssb_mips_serial_init(mcore);
         ssb_mips_flash_detect(mcore);
diff --git a/drivers/ssb/pcmcia.c b/drivers/ssb/pcmcia.c
index fbfadbac67e8..100e7a5c5ea1 100644
--- a/drivers/ssb/pcmcia.c
+++ b/drivers/ssb/pcmcia.c
@@ -583,7 +583,7 @@ static int ssb_pcmcia_sprom_write_all(struct ssb_bus *bus, const u16 *sprom)
                         ssb_printk(".");
                 err = ssb_pcmcia_sprom_write(bus, i, sprom[i]);
                 if (err) {
-                        ssb_printk("\n" KERN_NOTICE PFX
+                        ssb_printk(KERN_NOTICE PFX
                                    "Failed to write to SPROM.\n");
                         failed = 1;
                         break;
@@ -591,7 +591,7 @@ static int ssb_pcmcia_sprom_write_all(struct ssb_bus *bus, const u16 *sprom)
         }
         err = ssb_pcmcia_sprom_command(bus, SSB_PCMCIA_SPROMCTL_WRITEDIS);
         if (err) {
-                ssb_printk("\n" KERN_NOTICE PFX
+                ssb_printk(KERN_NOTICE PFX
                            "Could not disable SPROM write access.\n");
                 failed = 1;
         }
@@ -678,7 +678,8 @@ int ssb_pcmcia_get_invariants(struct ssb_bus *bus,
                         sprom->board_rev = tuple.TupleData[1];
                         break;
                 case SSB_PCMCIA_CIS_PA:
-                        GOTO_ERROR_ON(tuple.TupleDataLen != 9,
+                        GOTO_ERROR_ON((tuple.TupleDataLen != 9) &&
+                                      (tuple.TupleDataLen != 10),
                                       "pa tpl size");
                         sprom->pa0b0 = tuple.TupleData[1] |
                                  ((u16)tuple.TupleData[2] << 8);
@@ -718,7 +719,8 @@ int ssb_pcmcia_get_invariants(struct ssb_bus *bus,
                         sprom->antenna_gain.ghz5.a3 = tuple.TupleData[1];
                         break;
                 case SSB_PCMCIA_CIS_BFLAGS:
-                        GOTO_ERROR_ON(tuple.TupleDataLen != 3,
+                        GOTO_ERROR_ON((tuple.TupleDataLen != 3) &&
+                                      (tuple.TupleDataLen != 5),
                                       "bfl tpl size");
                         sprom->boardflags_lo = tuple.TupleData[1] |
                                          ((u16)tuple.TupleData[2] << 8);
diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 348bf61a8fec..975ecddbce30 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -103,8 +103,6 @@ source "drivers/staging/pohmelfs/Kconfig"
 
 source "drivers/staging/stlc45xx/Kconfig"
 
-source "drivers/staging/uc2322/Kconfig"
-
 source "drivers/staging/b3dfg/Kconfig"
 
 source "drivers/staging/phison/Kconfig"
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index 8d61d7b4debf..2241ae1b21ee 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -34,7 +34,6 @@ obj-$(CONFIG_ANDROID)		+= android/
 obj-$(CONFIG_DST)               += dst/
 obj-$(CONFIG_POHMELFS)          += pohmelfs/
 obj-$(CONFIG_STLC45XX)          += stlc45xx/
-obj-$(CONFIG_USB_SERIAL_ATEN2011)       += uc2322/
 obj-$(CONFIG_B3DFG)             += b3dfg/
 obj-$(CONFIG_IDE_PHISON)        += phison/
 obj-$(CONFIG_PLAN9AUTH)         += p9auth/
diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c
index fe72240f5a9e..f934393f3959 100644
--- a/drivers/staging/android/lowmemorykiller.c
+++ b/drivers/staging/android/lowmemorykiller.c
@@ -96,19 +96,21 @@ static int lowmem_shrink(int nr_to_scan, gfp_t gfp_mask)
 
         read_lock(&tasklist_lock);
         for_each_process(p) {
+                struct mm_struct *mm;
                 int oom_adj;
 
                 task_lock(p);
-                if (!p->mm) {
+                mm = p->mm;
+                if (!mm) {
                         task_unlock(p);
                         continue;
                 }
-                oom_adj = p->oomkilladj;
+                oom_adj = mm->oom_adj;
                 if (oom_adj < min_adj) {
                         task_unlock(p);
                         continue;
                 }
-                tasksize = get_mm_rss(p->mm);
+                tasksize = get_mm_rss(mm);
                 task_unlock(p);
                 if (tasksize <= 0)
                         continue;
diff --git a/drivers/staging/b3dfg/Kconfig b/drivers/staging/b3dfg/Kconfig
index 524231047de5..9e6573cf97d3 100644
--- a/drivers/staging/b3dfg/Kconfig
+++ b/drivers/staging/b3dfg/Kconfig
@@ -1,5 +1,6 @@
 config B3DFG
        tristate "Brontes 3d Frame Framegrabber"
+       depends on PCI
        default n
        ---help---
          This driver provides support for the Brontes 3d Framegrabber
diff --git a/drivers/staging/comedi/drivers/jr3_pci.c b/drivers/staging/comedi/drivers/jr3_pci.c
index baf83c6a9412..e3c3adc282e2 100644
--- a/drivers/staging/comedi/drivers/jr3_pci.c
+++ b/drivers/staging/comedi/drivers/jr3_pci.c
@@ -45,6 +45,8 @@ Devices: [JR3] PCI force sensor board (jr3_pci)
 #include <linux/delay.h>
 #include <linux/ctype.h>
 #include <linux/firmware.h>
+#include <linux/jiffies.h>
+#include <linux/timer.h>
 #include "comedi_pci.h"
 #include "jr3_pci.h"
 
diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 92121cf8c45c..5d9bab352c1d 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -111,9 +111,13 @@ static const struct s626_board s626_boards[] = {
 #define PCI_VENDOR_ID_S626 0x1131
 #define PCI_DEVICE_ID_S626 0x7146
 
+/*
+ * For devices with vendor:device id == 0x1131:0x7146 you must specify
+ * also subvendor:subdevice ids, because otherwise it will conflict with
+ * Philips SAA7146 media/dvb based cards.
+ */
 static DEFINE_PCI_DEVICE_TABLE(s626_pci_table) = {
-        {PCI_VENDOR_ID_S626, PCI_DEVICE_ID_S626, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
-                0},
+        {PCI_VENDOR_ID_S626, PCI_DEVICE_ID_S626, 0x6000, 0x0272, 0, 0, 0},
         {0}
 };
 
@@ -499,25 +503,26 @@ static int s626_attach(struct comedi_device *dev, struct comedi_devconfig *it)
         resource_size_t resourceStart;
         dma_addr_t appdma;
         struct comedi_subdevice *s;
-        struct pci_dev *pdev;
+        const struct pci_device_id *ids;
+        struct pci_dev *pdev = NULL;
 
         if (alloc_private(dev, sizeof(struct s626_private)) < 0)
                 return -ENOMEM;
 
-        for (pdev = pci_get_device(PCI_VENDOR_ID_S626, PCI_DEVICE_ID_S626,
-                        NULL); pdev != NULL;
-                pdev = pci_get_device(PCI_VENDOR_ID_S626,
-                        PCI_DEVICE_ID_S626, pdev)) {
-                if (it->options[0] || it->options[1]) {
-                        if (pdev->bus->number == it->options[0] &&
-                                PCI_SLOT(pdev->devfn) == it->options[1]) {
+        for (i = 0; i < (ARRAY_SIZE(s626_pci_table) - 1) && !pdev; i++) {
+                ids = &s626_pci_table[i];
+                do {
+                        pdev = pci_get_subsys(ids->vendor, ids->device, ids->subvendor,
+                                              ids->subdevice, pdev);
+
+                        if ((it->options[0] || it->options[1]) && pdev) {
                                 /* matches requested bus/slot */
+                                if (pdev->bus->number == it->options[0] &&
+                                    PCI_SLOT(pdev->devfn) == it->options[1])
+                                        break;
+                        } else
                                 break;
-                        }
-                } else {
-                        /* no bus/slot specified */
-                        break;
-                }
+                } while (1);
         }
         devpriv->pdev = pdev;
 
diff --git a/drivers/staging/go7007/s2250-loader.c b/drivers/staging/go7007/s2250-loader.c
index a5e4acab089e..bb22347af60e 100644
--- a/drivers/staging/go7007/s2250-loader.c
+++ b/drivers/staging/go7007/s2250-loader.c
@@ -17,6 +17,7 @@
 
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/smp_lock.h>
 #include <linux/usb.h>
 #include <dvb-usb.h>
 
diff --git a/drivers/staging/heci/Kconfig b/drivers/staging/heci/Kconfig
index ae8d588d3a27..c7206f8bcd93 100644
--- a/drivers/staging/heci/Kconfig
+++ b/drivers/staging/heci/Kconfig
@@ -1,5 +1,6 @@
 config HECI
         tristate "Intel Management Engine Interface (MEI) Support"
+        depends on PCI
         ---help---
           The Intel Management Engine Interface (Intel MEI) driver allows
           applications to access the Active Management Technology
diff --git a/drivers/staging/meilhaus/TODO b/drivers/staging/meilhaus/TODO
index 6ec25203089c..d6ce39823de6 100644
--- a/drivers/staging/meilhaus/TODO
+++ b/drivers/staging/meilhaus/TODO
@@ -7,4 +7,4 @@ TODO:
         - possible comedi merge
 
 Please send cleanup patches to Greg Kroah-Hartman <greg@kroah.com>
-and CC: David Kiliani <mail@davidkiliani.de>
+and CC: David Kiliani <mail@davidkiliani.de> and Meilhaus Support <support@meilhaus.de>
diff --git a/drivers/staging/rspiusb/rspiusb.c b/drivers/staging/rspiusb/rspiusb.c
index 1cdfe69585ea..04e2f92c0f62 100644
--- a/drivers/staging/rspiusb/rspiusb.c
+++ b/drivers/staging/rspiusb/rspiusb.c
@@ -444,8 +444,7 @@ static void piusb_write_bulk_callback(struct urb *urb)
                         __func__, status);
 
         pdx->pendingWrite = 0;
-        usb_buffer_free(urb->dev, urb->transfer_buffer_length,
-                        urb->transfer_buffer, urb->transfer_dma);
+        kfree(urb->transfer_buffer);
 }
 
 int piusb_output(struct ioctl_struct *io, unsigned char *uBuf, int len,
@@ -457,9 +456,7 @@ int piusb_output(struct ioctl_struct *io, unsigned char *uBuf, int len,
 
         urb = usb_alloc_urb(0, GFP_KERNEL);
         if (urb != NULL) {
-                kbuf =
-                    usb_buffer_alloc(pdx->udev, len, GFP_KERNEL,
-                                     &urb->transfer_dma);
+                kbuf = kmalloc(len, GFP_KERNEL);
                 if (!kbuf) {
                         dev_err(&pdx->udev->dev, "buffer_alloc failed\n");
                         return -ENOMEM;
@@ -470,7 +467,6 @@ int piusb_output(struct ioctl_struct *io, unsigned char *uBuf, int len,
                 }
                 usb_fill_bulk_urb(urb, pdx->udev, pdx->hEP[io->endpoint], kbuf,
                                   len, piusb_write_bulk_callback, pdx);
-                urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
                 err = usb_submit_urb(urb, GFP_KERNEL);
                 if (err) {
                         dev_err(&pdx->udev->dev,
@@ -641,7 +637,7 @@ static int MapUserBuffer(struct ioctl_struct *io, struct device_extension *pdx)
         numPagesRequired =
             ((uaddr & ~PAGE_MASK) + count + ~PAGE_MASK) >> PAGE_SHIFT;
         dbg("Number of pages needed = %d", numPagesRequired);
-        maplist_p = vmalloc(numPagesRequired * sizeof(struct page));
+        maplist_p = vmalloc(numPagesRequired * sizeof(struct page *));
         if (!maplist_p) {
                 dbg("Can't Allocate Memory for maplist_p");
                 return -ENOMEM;
@@ -712,9 +708,7 @@ static int MapUserBuffer(struct ioctl_struct *io, struct device_extension *pdx)
                 usb_fill_bulk_urb(pdx->PixelUrb[frameInfo][i],
                                   pdx->udev,
                                   epAddr,
-                                  (dma_addr_t *) sg_dma_address(&pdx->
-                                                                sgl[frameInfo]
-                                                                [i]),
+                                  NULL, // non-DMA HC? buy a better hardware
                                   sg_dma_len(&pdx->sgl[frameInfo][i]),
                                   piusb_readPIXEL_callback, (void *)pdx);
                 pdx->PixelUrb[frameInfo][i]->transfer_dma =
@@ -722,6 +716,8 @@ static int MapUserBuffer(struct ioctl_struct *io, struct device_extension *pdx)
                 pdx->PixelUrb[frameInfo][i]->transfer_flags =
                     URB_NO_TRANSFER_DMA_MAP | URB_NO_INTERRUPT;
         }
+        if (i == 0)
+                return -EINVAL;
         /* only interrupt when last URB completes */
         pdx->PixelUrb[frameInfo][--i]->transfer_flags &= ~URB_NO_INTERRUPT;
         pdx->pendedPixelUrbs[frameInfo] =
diff --git a/drivers/staging/rt2860/rt_linux.h b/drivers/staging/rt2860/rt_linux.h
index 85175c182432..25b53ac3f820 100644
--- a/drivers/staging/rt2860/rt_linux.h
+++ b/drivers/staging/rt2860/rt_linux.h
@@ -43,9 +43,6 @@
 #include "rtmp_type.h"
 #include <linux/module.h>
 #include <linux/kernel.h>
-#if !defined(RT2860) && !defined(RT30xx)
-#include <linux/kthread.h>
-#endif
 
 #include <linux/spinlock.h>
 #include <linux/init.h>
@@ -166,9 +163,7 @@ typedef int (*HARD_START_XMIT_FUNC)(struct sk_buff *skb, struct net_device *net_
 
 #ifndef RT30xx
 typedef struct pid *    THREAD_PID;
-#ifdef RT2860
 #define THREAD_PID_INIT_VALUE   NULL
-#endif
 #define GET_PID(_v)     find_get_pid(_v)
 #define GET_PID_NUMBER(_v)      pid_nr(_v)
 #define CHECK_PID_LEGALITY(_pid)        if (pid_nr(_pid) >= 0)
@@ -188,12 +183,12 @@ struct os_cookie {
         dma_addr_t                              pAd_pa;
 #endif
 #ifdef RT2870
-        struct usb_device       *pUsb_Dev;
+        struct usb_device               *pUsb_Dev;
 
 #ifndef RT30xx
-        struct task_struct      *MLMEThr_task;
-        struct task_struct      *RTUSBCmdThr_task;
-        struct task_struct      *TimerQThr_task;
+        THREAD_PID                              MLMEThr_pid;
+        THREAD_PID                              RTUSBCmdThr_pid;
+        THREAD_PID                              TimerQThr_pid;
 #endif
 #ifdef RT30xx
         struct pid      *MLMEThr_pid;
diff --git a/drivers/staging/rt2870/2870_main_dev.c b/drivers/staging/rt2870/2870_main_dev.c
index dd01c64fbf61..a4e8696ca39c 100644
--- a/drivers/staging/rt2870/2870_main_dev.c
+++ b/drivers/staging/rt2870/2870_main_dev.c
@@ -235,7 +235,7 @@ INT MlmeThread(
         DBGPRINT(RT_DEBUG_TRACE,( "<---%s\n",__func__));
 
 #ifndef RT30xx
-        pObj->MLMEThr_task = NULL;
+        pObj->MLMEThr_pid = THREAD_PID_INIT_VALUE;
 #endif
 #ifdef RT30xx
         pObj->MLMEThr_pid = NULL;
@@ -348,7 +348,7 @@ INT RTUSBCmdThread(
         DBGPRINT(RT_DEBUG_TRACE,( "<---RTUSBCmdThread\n"));
 
 #ifndef RT30xx
-        pObj->RTUSBCmdThr_task = NULL;
+        pObj->RTUSBCmdThr_pid = THREAD_PID_INIT_VALUE;
 #endif
 #ifdef RT30xx
         pObj->RTUSBCmdThr_pid = NULL;
@@ -447,7 +447,7 @@ INT TimerQThread(
         DBGPRINT(RT_DEBUG_TRACE,( "<---%s\n",__func__));
 
 #ifndef RT30xx
-        pObj->TimerQThr_task = NULL;
+        pObj->TimerQThr_pid = THREAD_PID_INIT_VALUE;
 #endif
 #ifdef RT30xx
         pObj->TimerQThr_pid = NULL;
@@ -883,46 +883,69 @@ VOID RT28xxThreadTerminate(
 
         // Terminate Threads
 #ifndef RT30xx
-        BUG_ON(pObj->TimerQThr_task == NULL);
-        CHECK_PID_LEGALITY(task_pid(pObj->TimerQThr_task))
+        CHECK_PID_LEGALITY(pObj->TimerQThr_pid)
         {
                 POS_COOKIE pObj = (POS_COOKIE)pAd->OS_Cookie;
 
-                printk(KERN_DEBUG "Terminate the TimerQThr pid=%d!\n",
-                        pid_nr(task_pid(pObj->TimerQThr_task)));
+                printk("Terminate the TimerQThr_pid=%d!\n", GET_PID_NUMBER(pObj->TimerQThr_pid));
                 mb();
                 pAd->TimerFunc_kill = 1;
                 mb();
-                kthread_stop(pObj->TimerQThr_task);
-                pObj->TimerQThr_task = NULL;
+                ret = KILL_THREAD_PID(pObj->TimerQThr_pid, SIGTERM, 1);
+                if (ret)
+                {
+                        printk(KERN_WARNING "%s: unable to stop TimerQThread, pid=%d, ret=%d!\n",
+                                        pAd->net_dev->name, GET_PID_NUMBER(pObj->TimerQThr_pid), ret);
+                }
+                else
+                {
+                        wait_for_completion(&pAd->TimerQComplete);
+                        pObj->TimerQThr_pid = THREAD_PID_INIT_VALUE;
+                }
         }
 
-        BUG_ON(pObj->MLMEThr_task == NULL);
-        CHECK_PID_LEGALITY(task_pid(pObj->MLMEThr_task))
+        CHECK_PID_LEGALITY(pObj->MLMEThr_pid)
         {
-                printk(KERN_DEBUG "Terminate the MLMEThr pid=%d!\n",
-                        pid_nr(task_pid(pObj->MLMEThr_task)));
+                printk("Terminate the MLMEThr_pid=%d!\n", GET_PID_NUMBER(pObj->MLMEThr_pid));
                 mb();
                 pAd->mlme_kill = 1;
                 //RT28XX_MLME_HANDLER(pAd);
                 mb();
-                kthread_stop(pObj->MLMEThr_task);
-                pObj->MLMEThr_task = NULL;
+                ret = KILL_THREAD_PID(pObj->MLMEThr_pid, SIGTERM, 1);
+                if (ret)
+                {
+                        printk (KERN_WARNING "%s: unable to Mlme thread, pid=%d, ret=%d!\n",
+                                        pAd->net_dev->name, GET_PID_NUMBER(pObj->MLMEThr_pid), ret);
+                }
+                else
+                {
+                        //wait_for_completion (&pAd->notify);
+                        wait_for_completion (&pAd->mlmeComplete);
+                        pObj->MLMEThr_pid = THREAD_PID_INIT_VALUE;
+                }
         }
 
-        BUG_ON(pObj->RTUSBCmdThr_task == NULL);
-        CHECK_PID_LEGALITY(task_pid(pObj->RTUSBCmdThr_task))
+        CHECK_PID_LEGALITY(pObj->RTUSBCmdThr_pid)
         {
-                printk(KERN_DEBUG "Terminate the RTUSBCmdThr pid=%d!\n",
-                        pid_nr(task_pid(pObj->RTUSBCmdThr_task)));
+                printk("Terminate the RTUSBCmdThr_pid=%d!\n", GET_PID_NUMBER(pObj->RTUSBCmdThr_pid));
                 mb();
                 NdisAcquireSpinLock(&pAd->CmdQLock);
                 pAd->CmdQ.CmdQState = RT2870_THREAD_STOPED;
                 NdisReleaseSpinLock(&pAd->CmdQLock);
                 mb();
                 //RTUSBCMDUp(pAd);
-                kthread_stop(pObj->RTUSBCmdThr_task);
-                pObj->RTUSBCmdThr_task = NULL;
+                ret = KILL_THREAD_PID(pObj->RTUSBCmdThr_pid, SIGTERM, 1);
+                if (ret)
+                {
+                        printk(KERN_WARNING "%s: unable to RTUSBCmd thread, pid=%d, ret=%d!\n",
+                                        pAd->net_dev->name, GET_PID_NUMBER(pObj->RTUSBCmdThr_pid), ret);
+                }
+                else
+                {
+                        //wait_for_completion (&pAd->notify);
+                        wait_for_completion (&pAd->CmdQComplete);
+                        pObj->RTUSBCmdThr_pid = THREAD_PID_INIT_VALUE;
+                }
         }
 #endif
 #ifdef RT30xx
@@ -1045,7 +1068,7 @@ BOOLEAN RT28XXChipsetCheck(
                         dev_p->descriptor.idProduct == rtusb_usb_id[i].idProduct)
                 {
 #ifndef RT30xx
-                        printk(KERN_DEBUG "rt2870: idVendor = 0x%x, idProduct = 0x%x\n",
+                        printk("rt2870: idVendor = 0x%x, idProduct = 0x%x\n",
 #endif
 #ifdef RT30xx
                         printk("rt2870: idVendor = 0x%x, idProduct = 0x%x\n",
diff --git a/drivers/staging/rt2870/common/2870_rtmp_init.c b/drivers/staging/rt2870/common/2870_rtmp_init.c
index 0f4c8af97e47..80909e9ab5ae 100644
--- a/drivers/staging/rt2870/common/2870_rtmp_init.c
+++ b/drivers/staging/rt2870/common/2870_rtmp_init.c
@@ -700,8 +700,8 @@ NDIS_STATUS AdapterBlockAllocateMemory(
         usb_dev = pObj->pUsb_Dev;
 
 #ifndef RT30xx
-        pObj->MLMEThr_task              = NULL;
-        pObj->RTUSBCmdThr_task  = NULL;
+        pObj->MLMEThr_pid               = THREAD_PID_INIT_VALUE;
+        pObj->RTUSBCmdThr_pid   = THREAD_PID_INIT_VALUE;
 #endif
 #ifdef RT30xx
         pObj->MLMEThr_pid       = NULL;
@@ -743,7 +743,7 @@ NDIS_STATUS	 CreateThreads(
         PRTMP_ADAPTER pAd = net_dev->ml_priv;
         POS_COOKIE pObj = (POS_COOKIE) pAd->OS_Cookie;
 #ifndef RT30xx
-        struct task_struct *tsk;
+        pid_t pid_number = -1;
 #endif
 #ifdef RT30xx
         pid_t pid_number;
@@ -762,10 +762,10 @@ NDIS_STATUS	 CreateThreads(
 
         // Creat MLME Thread
 #ifndef RT30xx
-        pObj->MLMEThr_task = NULL;
-        tsk = kthread_run(MlmeThread, pAd, "%s", pAd->net_dev->name);
-
-        if (IS_ERR(tsk)) {
+        pObj->MLMEThr_pid= THREAD_PID_INIT_VALUE;
+        pid_number = kernel_thread(MlmeThread, pAd, CLONE_VM);
+        if (pid_number < 0)
+        {
 #endif
 #ifdef RT30xx
         pObj->MLMEThr_pid = NULL;
@@ -778,7 +778,7 @@ NDIS_STATUS	 CreateThreads(
         }
 
 #ifndef RT30xx
-        pObj->MLMEThr_task = tsk;
+        pObj->MLMEThr_pid = GET_PID(pid_number);
 #endif
 #ifdef RT30xx
         pObj->MLMEThr_pid = find_get_pid(pid_number);
@@ -788,10 +788,9 @@ NDIS_STATUS	 CreateThreads(
 
         // Creat Command Thread
 #ifndef RT30xx
-        pObj->RTUSBCmdThr_task = NULL;
-        tsk = kthread_run(RTUSBCmdThread, pAd, "%s", pAd->net_dev->name);
-
-        if (IS_ERR(tsk) < 0)
+        pObj->RTUSBCmdThr_pid= THREAD_PID_INIT_VALUE;
+        pid_number = kernel_thread(RTUSBCmdThread, pAd, CLONE_VM);
+        if (pid_number < 0)
 #endif
 #ifdef RT30xx
         pObj->RTUSBCmdThr_pid = NULL;
@@ -804,7 +803,7 @@ NDIS_STATUS	 CreateThreads(
         }
 
 #ifndef RT30xx
-        pObj->RTUSBCmdThr_task = tsk;
+        pObj->RTUSBCmdThr_pid = GET_PID(pid_number);
 #endif
 #ifdef RT30xx
         pObj->RTUSBCmdThr_pid = find_get_pid(pid_number);
@@ -812,9 +811,9 @@ NDIS_STATUS	 CreateThreads(
         wait_for_completion(&(pAd->CmdQComplete));
 
 #ifndef RT30xx
-        pObj->TimerQThr_task = NULL;
-        tsk = kthread_run(TimerQThread, pAd, "%s", pAd->net_dev->name);
-        if (IS_ERR(tsk) < 0)
+        pObj->TimerQThr_pid= THREAD_PID_INIT_VALUE;
+        pid_number = kernel_thread(TimerQThread, pAd, CLONE_VM);
+        if (pid_number < 0)
 #endif
 #ifdef RT30xx
         pObj->TimerQThr_pid = NULL;
@@ -826,7 +825,7 @@ NDIS_STATUS	 CreateThreads(
                 return NDIS_STATUS_FAILURE;
         }
 #ifndef RT30xx
-        pObj->TimerQThr_task = tsk;
+        pObj->TimerQThr_pid = GET_PID(pid_number);
 #endif
 #ifdef RT30xx
         pObj->TimerQThr_pid = find_get_pid(pid_number);
diff --git a/drivers/staging/rt2870/common/rtusb_io.c b/drivers/staging/rt2870/common/rtusb_io.c
index fd1b0c18f2a0..704b5c2d5091 100644
--- a/drivers/staging/rt2870/common/rtusb_io.c
+++ b/drivers/staging/rt2870/common/rtusb_io.c
@@ -984,8 +984,7 @@ NDIS_STATUS	RTUSBEnqueueCmdFromNdis(
         POS_COOKIE pObj = (POS_COOKIE) pAd->OS_Cookie;
 
 #ifndef RT30xx
-        BUG_ON(pObj->RTUSBCmdThr_task == NULL);
-        CHECK_PID_LEGALITY(task_pid(pObj->RTUSBCmdThr_task))
+        CHECK_PID_LEGALITY(pObj->RTUSBCmdThr_pid)
 #endif
 #ifdef RT30xx
         if (pObj->RTUSBCmdThr_pid < 0)
diff --git a/drivers/staging/rt2870/rt2870.h b/drivers/staging/rt2870/rt2870.h
index 5e5b3f2b7eb1..2b8872b2fd9d 100644
--- a/drivers/staging/rt2870/rt2870.h
+++ b/drivers/staging/rt2870/rt2870.h
@@ -79,6 +79,7 @@
 {       \
         {USB_DEVICE(0x148F,0x2770)}, /* Ralink */               \
         {USB_DEVICE(0x1737,0x0071)}, /* Linksys WUSB600N */     \
+        {USB_DEVICE(0x1737,0x0070)}, /* Linksys */      \
         {USB_DEVICE(0x148F,0x2870)}, /* Ralink */               \
         {USB_DEVICE(0x148F,0x3070)}, /* Ralink */               \
         {USB_DEVICE(0x0B05,0x1731)}, /* Asus */                 \
@@ -89,15 +90,18 @@
         {USB_DEVICE(0x0DF6,0x002C)}, /* Sitecom */              \
         {USB_DEVICE(0x0DF6,0x002D)}, /* Sitecom */              \
         {USB_DEVICE(0x0DF6,0x0039)}, /* Sitecom */              \
+        {USB_DEVICE(0x0DF6,0x003F)}, /* Sitecom WL-608 */       \
         {USB_DEVICE(0x14B2,0x3C06)}, /* Conceptronic */         \
         {USB_DEVICE(0x14B2,0x3C28)}, /* Conceptronic */         \
         {USB_DEVICE(0x2019,0xED06)}, /* Planex Communications, Inc. */          \
+        {USB_DEVICE(0x2019,0xED14)}, /* Planex Communications, Inc. */          \
         {USB_DEVICE(0x2019,0xAB25)}, /* Planex Communications, Inc. RT3070 */           \
         {USB_DEVICE(0x07D1,0x3C09)}, /* D-Link */               \
         {USB_DEVICE(0x07D1,0x3C11)}, /* D-Link */               \
         {USB_DEVICE(0x14B2,0x3C07)}, /* AL */                   \
         {USB_DEVICE(0x14B2,0x3C12)}, /* AL */           \
         {USB_DEVICE(0x050D,0x8053)}, /* Belkin */               \
+        {USB_DEVICE(0x050D,0x815C)}, /* Belkin */               \
         {USB_DEVICE(0x14B2,0x3C23)}, /* Airlink */              \
         {USB_DEVICE(0x14B2,0x3C27)}, /* Airlink */              \
         {USB_DEVICE(0x07AA,0x002F)}, /* Corega */               \
@@ -586,16 +590,14 @@ VOID RTUSBBulkRxComplete(purbb_t pUrb, struct pt_regs *pt_regs);
 #define RTUSBMlmeUp(pAd)                \
 {                                                                   \
         POS_COOKIE pObj = (POS_COOKIE) pAd->OS_Cookie;  \
-        BUG_ON(pObj->MLMEThr_task == NULL);                 \
-        CHECK_PID_LEGALITY(task_pid(pObj->MLMEThr_task))                    \
+        CHECK_PID_LEGALITY(pObj->MLMEThr_pid)               \
         up(&(pAd->mlme_semaphore)); \
 }
 
 #define RTUSBCMDUp(pAd)                 \
 {                                                                           \
         POS_COOKIE pObj = (POS_COOKIE) pAd->OS_Cookie;  \
-        BUG_ON(pObj->RTUSBCmdThr_task == NULL);     \
-        CHECK_PID_LEGALITY(task_pid(pObj->RTUSBCmdThr_task))        \
+        CHECK_PID_LEGALITY(pObj->RTUSBCmdThr_pid)           \
             up(&(pAd->RTUSBCmd_semaphore)); \
 }
 #endif
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac_wx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac_wx.c
index 93af37e2d31a..54b4b718f84a 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac_wx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac_wx.c
@@ -461,19 +461,19 @@ int ieee80211_wx_get_name(struct ieee80211_device *ieee,
                              struct iw_request_info *info,
                              union iwreq_data *wrqu, char *extra)
 {
-        strcpy(wrqu->name, "802.11");
+        strlcpy(wrqu->name, "802.11", IFNAMSIZ);
         if(ieee->modulation & IEEE80211_CCK_MODULATION){
-                strcat(wrqu->name, "b");
+                strlcat(wrqu->name, "b", IFNAMSIZ);
                 if(ieee->modulation & IEEE80211_OFDM_MODULATION)
-                        strcat(wrqu->name, "/g");
+                        strlcat(wrqu->name, "/g", IFNAMSIZ);
         }else if(ieee->modulation & IEEE80211_OFDM_MODULATION)
-                strcat(wrqu->name, "g");
+                strlcat(wrqu->name, "g", IFNAMSIZ);
 
         if((ieee->state == IEEE80211_LINKED) ||
                 (ieee->state == IEEE80211_LINKED_SCANNING))
-                strcat(wrqu->name," linked");
+                strlcat(wrqu->name,"  link", IFNAMSIZ);
         else if(ieee->state != IEEE80211_NOLINK)
-                strcat(wrqu->name," link..");
+                strlcat(wrqu->name," .....", IFNAMSIZ);
 
 
         return 0;
diff --git a/drivers/staging/rtl8192su/Kconfig b/drivers/staging/rtl8192su/Kconfig
index 4b5552c5926e..770f41280f21 100644
--- a/drivers/staging/rtl8192su/Kconfig
+++ b/drivers/staging/rtl8192su/Kconfig
@@ -1,6 +1,6 @@
 config RTL8192SU
         tristate "RealTek RTL8192SU Wireless LAN NIC driver"
         depends on PCI
-        depends on WIRELESS_EXT && COMPAT_NET_DEV_OPS
+        depends on WIRELESS_EXT
         default N
         ---help---
diff --git a/drivers/staging/rtl8192su/ieee80211.h b/drivers/staging/rtl8192su/ieee80211.h
index 0edb09a536f9..ea9739318037 100644
--- a/drivers/staging/rtl8192su/ieee80211.h
+++ b/drivers/staging/rtl8192su/ieee80211.h
@@ -2645,7 +2645,7 @@ extern int ieee80211_encrypt_fragment(
         struct sk_buff *frag,
         int hdr_len);
 
-extern int ieee80211_xmit(struct sk_buff *skb,
+extern int rtl8192_ieee80211_xmit(struct sk_buff *skb,
                           struct net_device *dev);
 extern void ieee80211_txb_free(struct ieee80211_txb *);
 
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211.h b/drivers/staging/rtl8192su/ieee80211/ieee80211.h
index 720bfcbfadc1..5e3a2cbed2b1 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211.h
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211.h
@@ -2645,7 +2645,7 @@ extern int ieee80211_encrypt_fragment(
         struct sk_buff *frag,
         int hdr_len);
 
-extern int ieee80211_xmit(struct sk_buff *skb,
+extern int rtl8192_ieee80211_xmit(struct sk_buff *skb,
                           struct net_device *dev);
 extern void ieee80211_txb_free(struct ieee80211_txb *);
 
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_module.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_module.c
index f408b4583b82..759032db4a34 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_module.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_module.c
@@ -118,7 +118,6 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
 #else
         ieee = (struct ieee80211_device *)dev->priv;
 #endif
-        dev->hard_start_xmit = ieee80211_xmit;
 
         memset(ieee, 0, sizeof(struct ieee80211_device)+sizeof_priv);
         ieee->dev = dev;
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac_wx.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac_wx.c
index 1f50c46dcb90..191dc3fbbe32 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac_wx.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac_wx.c
@@ -548,21 +548,21 @@ int ieee80211_wx_get_name(struct ieee80211_device *ieee,
                              struct iw_request_info *info,
                              union iwreq_data *wrqu, char *extra)
 {
-        strcpy(wrqu->name, "802.11");
+        strlcpy(wrqu->name, "802.11", IFNAMSIZ);
         if(ieee->modulation & IEEE80211_CCK_MODULATION){
-                strcat(wrqu->name, "b");
+                strlcat(wrqu->name, "b", IFNAMSIZ);
                 if(ieee->modulation & IEEE80211_OFDM_MODULATION)
-                        strcat(wrqu->name, "/g");
+                        strlcat(wrqu->name, "/g", IFNAMSIZ);
         }else if(ieee->modulation & IEEE80211_OFDM_MODULATION)
-                strcat(wrqu->name, "g");
+                strlcat(wrqu->name, "g", IFNAMSIZ);
         if (ieee->mode & (IEEE_N_24G | IEEE_N_5G))
-                strcat(wrqu->name, "/n");
+                strlcat(wrqu->name, "/n", IFNAMSIZ);
 
         if((ieee->state == IEEE80211_LINKED) ||
                 (ieee->state == IEEE80211_LINKED_SCANNING))
-                strcat(wrqu->name," linked");
+                strlcat(wrqu->name, "  link", IFNAMSIZ);
         else if(ieee->state != IEEE80211_NOLINK)
-                strcat(wrqu->name," link..");
+                strlcat(wrqu->name, " .....", IFNAMSIZ);
 
 
         return 0;
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_tx.c
index 7294572b990f..cba12b84be5c 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_tx.c
@@ -618,7 +618,7 @@ void ieee80211_query_seqnum(struct ieee80211_device*ieee, struct sk_buff* skb, u
         }
 }
 
-int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
+int rtl8192_ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
         struct ieee80211_device *ieee = netdev_priv(dev);
@@ -943,5 +943,6 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
         return 1;
 
 }
+EXPORT_SYMBOL(rtl8192_ieee80211_xmit);
 
 EXPORT_SYMBOL(ieee80211_txb_free);
diff --git a/drivers/staging/rtl8192su/r8192U_core.c b/drivers/staging/rtl8192su/r8192U_core.c
index f1423d714496..70f81a8f1291 100644
--- a/drivers/staging/rtl8192su/r8192U_core.c
+++ b/drivers/staging/rtl8192su/r8192U_core.c
@@ -12132,6 +12132,19 @@ static void HalUsbSetQueuePipeMapping8192SUsb(struct usb_interface *intf, struct
 }
 #endif
 
+static const struct net_device_ops rtl8192_netdev_ops = {
+        .ndo_open               = rtl8192_open,
+        .ndo_stop               = rtl8192_close,
+        .ndo_get_stats          = rtl8192_stats,
+        .ndo_tx_timeout         = tx_timeout,
+        .ndo_do_ioctl           = rtl8192_ioctl,
+        .ndo_set_multicast_list = r8192_set_multicast,
+        .ndo_set_mac_address    = r8192_set_mac_adr,
+        .ndo_validate_addr      = eth_validate_addr,
+        .ndo_change_mtu         = eth_change_mtu,
+        .ndo_start_xmit         = rtl8192_ieee80211_xmit,
+};
+
 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
 static int __devinit rtl8192_usb_probe(struct usb_interface *intf,
                          const struct usb_device_id *id)
@@ -12186,15 +12199,7 @@ static void * __devinit rtl8192_usb_probe(struct usb_device *udev,
         priv->ops = &rtl8192u_ops;
 #endif
 
-        dev->open = rtl8192_open;
-        dev->stop = rtl8192_close;
-        //dev->hard_start_xmit = rtl8192_8023_hard_start_xmit;
-        dev->tx_timeout = tx_timeout;
-        //dev->wireless_handlers = &r8192_wx_handlers_def;
-        dev->do_ioctl = rtl8192_ioctl;
-        dev->set_multicast_list = r8192_set_multicast;
-        dev->set_mac_address = r8192_set_mac_adr;
-        dev->get_stats = rtl8192_stats;
+        dev->netdev_ops = &rtl8192_netdev_ops;
 
          //DMESG("Oops: i'm coming\n");
 #if WIRELESS_EXT >= 12
diff --git a/drivers/staging/rtl8192su/r8192U_pm.c b/drivers/staging/rtl8192su/r8192U_pm.c
index 92c95aa36638..b1531a8d0cde 100644
--- a/drivers/staging/rtl8192su/r8192U_pm.c
+++ b/drivers/staging/rtl8192su/r8192U_pm.c
@@ -35,7 +35,9 @@ int rtl8192U_suspend(struct usb_interface *intf, pm_message_t state)
                       return 0;
                  }
 
-                dev->stop(dev);
+                if (dev->netdev_ops->ndo_stop)
+                        dev->netdev_ops->ndo_stop(dev);
+
                 mdelay(10);
 
                 netif_device_detach(dev);
@@ -61,7 +63,9 @@ int rtl8192U_resume (struct usb_interface *intf)
                 }
 
                 netif_device_attach(dev);
-                dev->open(dev);
+
+                if (dev->netdev_ops->ndo_open)
+                        dev->netdev_ops->ndo_open(dev);
         }
 
         return 0;
diff --git a/drivers/staging/serqt_usb2/serqt_usb2.c b/drivers/staging/serqt_usb2/serqt_usb2.c
index 90b29b564631..0fdf8c6dc648 100644
--- a/drivers/staging/serqt_usb2/serqt_usb2.c
+++ b/drivers/staging/serqt_usb2/serqt_usb2.c
@@ -360,18 +360,18 @@ static void qt_read_bulk_callback(struct urb *urb)
         if (port_paranoia_check(port, __func__) != 0) {
                 dbg("%s - port_paranoia_check, exiting\n", __func__);
                 qt_port->ReadBulkStopped = 1;
-                return;
+                goto exit;
         }
 
         if (!serial) {
                 dbg("%s - bad serial pointer, exiting\n", __func__);
-                return;
+                goto exit;
         }
         if (qt_port->closePending == 1) {
                 /* Were closing , stop reading */
                 dbg("%s - (qt_port->closepending == 1\n", __func__);
                 qt_port->ReadBulkStopped = 1;
-                return;
+                goto exit;
         }
 
         /*
@@ -381,7 +381,7 @@ static void qt_read_bulk_callback(struct urb *urb)
          */
         if (qt_port->RxHolding == 1) {
                 qt_port->ReadBulkStopped = 1;
-                return;
+                goto exit;
         }
 
         if (urb->status) {
@@ -389,7 +389,7 @@ static void qt_read_bulk_callback(struct urb *urb)
 
                 dbg("%s - nonzero read bulk status received: %d\n",
                     __func__, urb->status);
-                return;
+                goto exit;
         }
 
         if (tty && RxCount) {
@@ -463,6 +463,8 @@ static void qt_read_bulk_callback(struct urb *urb)
         }
 
         schedule_work(&port->work);
+exit:
+        tty_kref_put(tty);
 }
 
 /*
@@ -736,6 +738,11 @@ static int qt_startup(struct usb_serial *serial)
                 if (!qt_port) {
                         dbg("%s: kmalloc for quatech_port (%d) failed!.",
                             __func__, i);
+                        for(--i; i >= 0; i--) {
+                                port = serial->port[i];
+                                kfree(usb_get_serial_port_data(port));
+                                usb_set_serial_port_data(port, NULL);
+                        }
                         return -ENOMEM;
                 }
                 spin_lock_init(&qt_port->lock);
@@ -866,7 +873,7 @@ static void qt_release(struct usb_serial *serial)
 
 }
 
-int qt_open(struct tty_struct *tty,
+static int qt_open(struct tty_struct *tty,
             struct usb_serial_port *port, struct file *filp)
 {
         struct usb_serial *serial;
@@ -1041,17 +1048,19 @@ static void qt_block_until_empty(struct tty_struct *tty,
         }
 }
 
-static void qt_close(struct tty_struct *tty, struct usb_serial_port *port,
-                     struct file *filp)
+static void qt_close(struct usb_serial_port *port)
 {
         struct usb_serial *serial = port->serial;
         struct quatech_port *qt_port;
         struct quatech_port *port0;
+        struct tty_struct *tty;
         int status;
         unsigned int index;
         status = 0;
 
         dbg("%s - port %d\n", __func__, port->number);
+
+        tty = tty_port_tty_get(&port->port);
         index = tty->index - serial->minor;
 
         qt_port = qt_get_port_private(port);
@@ -1066,6 +1075,7 @@ static void qt_close(struct tty_struct *tty, struct usb_serial_port *port,
         /* wait up to for transmitter to empty */
         if (serial->dev)
                 qt_block_until_empty(tty, qt_port);
+        tty_kref_put(tty);
 
         /* Close uart channel */
         status = qt_close_channel(serial, index);
diff --git a/drivers/staging/stlc45xx/stlc45xx.c b/drivers/staging/stlc45xx/stlc45xx.c
index cfdaac9b747e..a137c78fac09 100644
--- a/drivers/staging/stlc45xx/stlc45xx.c
+++ b/drivers/staging/stlc45xx/stlc45xx.c
@@ -2235,24 +2235,6 @@ static void stlc45xx_op_remove_interface(struct ieee80211_hw *hw,
         stlc45xx_debug(DEBUG_FUNC, "%s", __func__);
 }
 
-static int stlc45xx_op_config_interface(struct ieee80211_hw *hw,
-                                        struct ieee80211_vif *vif,
-                                        struct ieee80211_if_conf *conf)
-{
-        struct stlc45xx *stlc = hw->priv;
-
-        stlc45xx_debug(DEBUG_FUNC, "%s", __func__);
-
-        mutex_lock(&stlc->mutex);
-
-        memcpy(stlc->bssid, conf->bssid, ETH_ALEN);
-        stlc45xx_tx_setup(stlc);
-
-        mutex_unlock(&stlc->mutex);
-
-        return 0;
-}
-
 static int stlc45xx_op_config(struct ieee80211_hw *hw, u32 changed)
 {
         struct stlc45xx *stlc = hw->priv;
@@ -2295,6 +2277,14 @@ static void stlc45xx_op_bss_info_changed(struct ieee80211_hw *hw,
 {
         struct stlc45xx *stlc = hw->priv;
 
+        stlc45xx_debug(DEBUG_FUNC, "%s", __func__);
+        mutex_lock(&stlc->mutex);
+
+        memcpy(stlc->bssid, info->bssid, ETH_ALEN);
+        stlc45xx_tx_setup(stlc);
+
+        mutex_unlock(&stlc->mutex);
+
         if (changed & BSS_CHANGED_ASSOC) {
                 stlc->associated = info->assoc;
                 if (info->assoc)
@@ -2357,7 +2347,6 @@ static const struct ieee80211_ops stlc45xx_ops = {
         .add_interface = stlc45xx_op_add_interface,
         .remove_interface = stlc45xx_op_remove_interface,
         .config = stlc45xx_op_config,
-        .config_interface = stlc45xx_op_config_interface,
         .configure_filter = stlc45xx_op_configure_filter,
         .tx = stlc45xx_op_tx,
         .bss_info_changed = stlc45xx_op_bss_info_changed,
diff --git a/drivers/staging/uc2322/Kconfig b/drivers/staging/uc2322/Kconfig
deleted file mode 100644
index 2e0c6e79df2b..000000000000
--- a/drivers/staging/uc2322/Kconfig
+++ /dev/null
@@ -1,10 +0,0 @@
-config USB_SERIAL_ATEN2011
-        tristate "ATEN 2011 USB to serial device support"
-        depends on USB_SERIAL
-        default N
-        ---help---
-          Say Y here if you want to use a ATEN 2011 dual port USB to serial
-          adapter.
-
-          To compile this driver as a module, choose M here: the module will be
-          called aten2011.
diff --git a/drivers/staging/uc2322/Makefile b/drivers/staging/uc2322/Makefile
deleted file mode 100644
index 49c18d6e579f..000000000000
--- a/drivers/staging/uc2322/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-obj-$(CONFIG_USB_SERIAL_ATEN2011)       += aten2011.o
diff --git a/drivers/staging/uc2322/TODO b/drivers/staging/uc2322/TODO
deleted file mode 100644
index c189a64c4185..000000000000
--- a/drivers/staging/uc2322/TODO
+++ /dev/null
@@ -1,7 +0,0 @@
-TODO:
-        - checkpatch.pl cleanups
-        - remove dead and useless code (auditing the tty ioctls to
-          verify that they really are correct and needed.)
-
-Please send any patches to Greg Kroah-Hartman <greg@kroah.com> and
-Russell Lang <gsview@ghostgum.com.au>.
diff --git a/drivers/staging/uc2322/aten2011.c b/drivers/staging/uc2322/aten2011.c
deleted file mode 100644
index 39d0926d1a90..000000000000
--- a/drivers/staging/uc2322/aten2011.c
+++ /dev/null
@@ -1,2430 +0,0 @@
-/*
- * Aten 2011 USB serial driver for 4 port devices
- *
- * Copyright (C) 2000 Inside Out Networks
- * Copyright (C) 2001-2002, 2009 Greg Kroah-Hartman <greg@kroah.com>
- * Copyright (C) 2009 Novell Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/tty.h>
-#include <linux/tty_driver.h>
-#include <linux/tty_flip.h>
-#include <linux/module.h>
-#include <linux/serial.h>
-#include <linux/uaccess.h>
-#include <linux/usb.h>
-#include <linux/usb/serial.h>
-
-
-#define ZLP_REG1                0x3A    /* Zero_Flag_Reg1 58 */
-#define ZLP_REG2                0x3B    /* Zero_Flag_Reg2 59 */
-#define ZLP_REG3                0x3C    /* Zero_Flag_Reg3 60 */
-#define ZLP_REG4                0x3D    /* Zero_Flag_Reg4 61 */
-#define ZLP_REG5                0x3E    /* Zero_Flag_Reg5 62 */
-
-/* Interrupt Rotinue Defines    */
-#define SERIAL_IIR_RLS          0x06
-#define SERIAL_IIR_RDA          0x04
-#define SERIAL_IIR_CTI          0x0c
-#define SERIAL_IIR_THR          0x02
-#define SERIAL_IIR_MS           0x00
-
-/* Emulation of the bit mask on the LINE STATUS REGISTER.  */
-#define SERIAL_LSR_DR           0x0001
-#define SERIAL_LSR_OE           0x0002
-#define SERIAL_LSR_PE           0x0004
-#define SERIAL_LSR_FE           0x0008
-#define SERIAL_LSR_BI           0x0010
-#define SERIAL_LSR_THRE         0x0020
-#define SERIAL_LSR_TEMT         0x0040
-#define SERIAL_LSR_FIFOERR      0x0080
-
-/* MSR bit defines(place holders) */
-#define ATEN_MSR_DELTA_CTS      0x10
-#define ATEN_MSR_DELTA_DSR      0x20
-#define ATEN_MSR_DELTA_RI       0x40
-#define ATEN_MSR_DELTA_CD       0x80
-
-/* Serial Port register Address */
-#define RECEIVE_BUFFER_REGISTER         ((__u16)(0x00))
-#define TRANSMIT_HOLDING_REGISTER       ((__u16)(0x00))
-#define INTERRUPT_ENABLE_REGISTER       ((__u16)(0x01))
-#define INTERRUPT_IDENT_REGISTER        ((__u16)(0x02))
-#define FIFO_CONTROL_REGISTER           ((__u16)(0x02))
-#define LINE_CONTROL_REGISTER           ((__u16)(0x03))
-#define MODEM_CONTROL_REGISTER          ((__u16)(0x04))
-#define LINE_STATUS_REGISTER            ((__u16)(0x05))
-#define MODEM_STATUS_REGISTER           ((__u16)(0x06))
-#define SCRATCH_PAD_REGISTER            ((__u16)(0x07))
-#define DIVISOR_LATCH_LSB               ((__u16)(0x00))
-#define DIVISOR_LATCH_MSB               ((__u16)(0x01))
-
-#define SP1_REGISTER                    ((__u16)(0x00))
-#define CONTROL1_REGISTER               ((__u16)(0x01))
-#define CLK_MULTI_REGISTER              ((__u16)(0x02))
-#define CLK_START_VALUE_REGISTER        ((__u16)(0x03))
-#define DCR1_REGISTER                   ((__u16)(0x04))
-#define GPIO_REGISTER                   ((__u16)(0x07))
-
-#define SERIAL_LCR_DLAB                 ((__u16)(0x0080))
-
-/*
- * URB POOL related defines
- */
-#define NUM_URBS                        16      /* URB Count */
-#define URB_TRANSFER_BUFFER_SIZE        32      /* URB Size  */
-
-#define USB_VENDOR_ID_ATENINTL          0x0557
-#define ATENINTL_DEVICE_ID_2011         0x2011
-#define ATENINTL_DEVICE_ID_7820         0x7820
-
-static struct usb_device_id id_table[] = {
-        { USB_DEVICE(USB_VENDOR_ID_ATENINTL, ATENINTL_DEVICE_ID_2011) },
-        { USB_DEVICE(USB_VENDOR_ID_ATENINTL, ATENINTL_DEVICE_ID_7820) },
-        { } /* terminating entry */
-};
-MODULE_DEVICE_TABLE(usb, id_table);
-
-/* This structure holds all of the local port information */
-struct ATENINTL_port {
-        int             port_num;          /*Actual port number in the device(1,2,etc)*/
-        __u8            bulk_out_endpoint;      /* the bulk out endpoint handle */
-        unsigned char   *bulk_out_buffer;       /* buffer used for the bulk out endpoint */
-        struct urb      *write_urb;             /* write URB for this port */
-        __u8            bulk_in_endpoint;       /* the bulk in endpoint handle */
-        unsigned char   *bulk_in_buffer;        /* the buffer we use for the bulk in endpoint */
-        struct urb      *read_urb;              /* read URB for this port */
-        __u8            shadowLCR;              /* last LCR value received */
-        __u8            shadowMCR;              /* last MCR value received */
-        char            open;
-        char            chaseResponsePending;
-        wait_queue_head_t       wait_chase;             /* for handling sleeping while waiting for chase to finish */
-        wait_queue_head_t       wait_command;           /* for handling sleeping while waiting for command to finish */
-        struct async_icount     icount;
-        struct usb_serial_port  *port;                  /* loop back to the owner of this object */
-        /*Offsets*/
-        __u8            SpRegOffset;
-        __u8            ControlRegOffset;
-        __u8            DcrRegOffset;
-        /* for processing control URBS in interrupt context */
-        struct urb      *control_urb;
-        char            *ctrl_buf;
-        int             MsrLsr;
-
-        struct urb      *write_urb_pool[NUM_URBS];
-        /* we pass a pointer to this as the arguement sent to cypress_set_termios old_termios */
-        struct ktermios tmp_termios;        /* stores the old termios settings */
-        spinlock_t      lock;                   /* private lock */
-};
-
-/* This structure holds all of the individual serial device information */
-struct ATENINTL_serial {
-        __u8            interrupt_in_endpoint;          /* the interrupt endpoint handle */
-        unsigned char   *interrupt_in_buffer;           /* the buffer we use for the interrupt endpoint */
-        struct urb      *interrupt_read_urb;    /* our interrupt urb */
-        __u8            bulk_in_endpoint;       /* the bulk in endpoint handle */
-        unsigned char   *bulk_in_buffer;                /* the buffer we use for the bulk in endpoint */
-        struct urb      *read_urb;              /* our bulk read urb */
-        __u8            bulk_out_endpoint;      /* the bulk out endpoint handle */
-        struct usb_serial       *serial;        /* loop back to the owner of this object */
-        int     ATEN2011_spectrum_2or4ports;    /* this says the number of ports in the device */
-        /* Indicates about the no.of opened ports of an individual USB-serial adapater. */
-        unsigned int    NoOfOpenPorts;
-        /* a flag for Status endpoint polling */
-        unsigned char   status_polling_started;
-};
-
-static void ATEN2011_set_termios(struct tty_struct *tty,
-                                 struct usb_serial_port *port,
-                                 struct ktermios *old_termios);
-static void ATEN2011_change_port_settings(struct tty_struct *tty,
-                                          struct ATENINTL_port *ATEN2011_port,
-                                          struct ktermios *old_termios);
-
-/*************************************
- * Bit definitions for each register *
- *************************************/
-#define LCR_BITS_5              0x00    /* 5 bits/char */
-#define LCR_BITS_6              0x01    /* 6 bits/char */
-#define LCR_BITS_7              0x02    /* 7 bits/char */
-#define LCR_BITS_8              0x03    /* 8 bits/char */
-#define LCR_BITS_MASK           0x03    /* Mask for bits/char field */
-
-#define LCR_STOP_1              0x00    /* 1 stop bit */
-#define LCR_STOP_1_5            0x04    /* 1.5 stop bits (if 5   bits/char) */
-#define LCR_STOP_2              0x04    /* 2 stop bits   (if 6-8 bits/char) */
-#define LCR_STOP_MASK           0x04    /* Mask for stop bits field */
-
-#define LCR_PAR_NONE            0x00    /* No parity */
-#define LCR_PAR_ODD             0x08    /* Odd parity */
-#define LCR_PAR_EVEN            0x18    /* Even parity */
-#define LCR_PAR_MARK            0x28    /* Force parity bit to 1 */
-#define LCR_PAR_SPACE           0x38    /* Force parity bit to 0 */
-#define LCR_PAR_MASK            0x38    /* Mask for parity field */
-
-#define LCR_SET_BREAK           0x40    /* Set Break condition */
-#define LCR_DL_ENABLE           0x80    /* Enable access to divisor latch */
-
-#define MCR_DTR                 0x01    /* Assert DTR */
-#define MCR_RTS                 0x02    /* Assert RTS */
-#define MCR_OUT1                0x04    /* Loopback only: Sets state of RI */
-#define MCR_MASTER_IE           0x08    /* Enable interrupt outputs */
-#define MCR_LOOPBACK            0x10    /* Set internal (digital) loopback mode */
-#define MCR_XON_ANY             0x20    /* Enable any char to exit XOFF mode */
-
-#define ATEN2011_MSR_CTS        0x10    /* Current state of CTS */
-#define ATEN2011_MSR_DSR        0x20    /* Current state of DSR */
-#define ATEN2011_MSR_RI         0x40    /* Current state of RI */
-#define ATEN2011_MSR_CD         0x80    /* Current state of CD */
-
-
-static int debug;
-
-/*
- * Version Information
- */
-#define DRIVER_VERSION "2.0"
-#define DRIVER_DESC "ATENINTL 2011 USB Serial Adapter"
-
-/*
- * Defines used for sending commands to port
- */
-
-#define ATEN_WDR_TIMEOUT        (50)    /* default urb timeout */
-
-/* Requests */
-#define ATEN_RD_RTYPE           0xC0
-#define ATEN_WR_RTYPE           0x40
-#define ATEN_RDREQ              0x0D
-#define ATEN_WRREQ              0x0E
-#define ATEN_CTRL_TIMEOUT       500
-#define VENDOR_READ_LENGTH      (0x01)
-
-/* set to 1 for RS485 mode and 0 for RS232 mode */
-/* FIXME make this somehow dynamic and not build time specific */
-static int RS485mode;
-
-static int set_reg_sync(struct usb_serial_port *port, __u16 reg, __u16 val)
-{
-        struct usb_device *dev = port->serial->dev;
-        val = val & 0x00ff;
-
-        dbg("%s: is %x, value %x", __func__, reg, val);
-
-        return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), ATEN_WRREQ,
-                               ATEN_WR_RTYPE, val, reg, NULL, 0,
-                               ATEN_WDR_TIMEOUT);
-}
-
-static int get_reg_sync(struct usb_serial_port *port, __u16 reg, __u16 *val)
-{
-        struct usb_device *dev = port->serial->dev;
-        int ret;
-
-        ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), ATEN_RDREQ,
-                              ATEN_RD_RTYPE, 0, reg, val, VENDOR_READ_LENGTH,
-                              ATEN_WDR_TIMEOUT);
-        dbg("%s: offset is %x, return val %x", __func__, reg, *val);
-        *val = (*val) & 0x00ff;
-        return ret;
-}
-
-static int set_uart_reg(struct usb_serial_port *port, __u16 reg, __u16 val)
-{
-        struct usb_device *dev = port->serial->dev;
-        struct ATENINTL_serial *a_serial;
-        __u16 minor;
-
-        a_serial = usb_get_serial_data(port->serial);
-        minor = port->serial->minor;
-        if (minor == SERIAL_TTY_NO_MINOR)
-                minor = 0;
-        val = val & 0x00ff;
-
-        /*
-         * For the UART control registers,
-         * the application number need to be Or'ed
-         */
-        if (a_serial->ATEN2011_spectrum_2or4ports == 4)
-                val |= (((__u16)port->number - minor) + 1) << 8;
-        else {
-                if (((__u16) port->number - minor) == 0)
-                        val |= (((__u16)port->number - minor) + 1) << 8;
-                else
-                        val |= (((__u16)port->number - minor) + 2) << 8;
-        }
-        dbg("%s: application number is %x", __func__, val);
-
-        return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), ATEN_WRREQ,
-                               ATEN_WR_RTYPE, val, reg, NULL, 0,
-                               ATEN_WDR_TIMEOUT);
-}
-
-static int get_uart_reg(struct usb_serial_port *port, __u16 reg, __u16 *val)
-{
-        struct usb_device *dev = port->serial->dev;
-        int ret = 0;
-        __u16 wval;
-        struct ATENINTL_serial *a_serial;
-        __u16 minor = port->serial->minor;
-
-        a_serial = usb_get_serial_data(port->serial);
-        if (minor == SERIAL_TTY_NO_MINOR)
-                minor = 0;
-
-        /* wval is same as application number */
-        if (a_serial->ATEN2011_spectrum_2or4ports == 4)
-                wval = (((__u16)port->number - minor) + 1) << 8;
-        else {
-                if (((__u16) port->number - minor) == 0)
-                        wval = (((__u16) port->number - minor) + 1) << 8;
-                else
-                        wval = (((__u16) port->number - minor) + 2) << 8;
-        }
-        dbg("%s: application number is %x", __func__, wval);
-        ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), ATEN_RDREQ,
-                              ATEN_RD_RTYPE, wval, reg, val, VENDOR_READ_LENGTH,
-                              ATEN_WDR_TIMEOUT);
-        *val = (*val) & 0x00ff;
-        return ret;
-}
-
-static int handle_newMsr(struct ATENINTL_port *port, __u8 newMsr)
-{
-        struct ATENINTL_port *ATEN2011_port;
-        struct async_icount *icount;
-        ATEN2011_port = port;
-        icount = &ATEN2011_port->icount;
-        if (newMsr &
-            (ATEN_MSR_DELTA_CTS | ATEN_MSR_DELTA_DSR | ATEN_MSR_DELTA_RI |
-             ATEN_MSR_DELTA_CD)) {
-                icount = &ATEN2011_port->icount;
-
-                /* update input line counters */
-                if (newMsr & ATEN_MSR_DELTA_CTS)
-                        icount->cts++;
-                if (newMsr & ATEN_MSR_DELTA_DSR)
-                        icount->dsr++;
-                if (newMsr & ATEN_MSR_DELTA_CD)
-                        icount->dcd++;
-                if (newMsr & ATEN_MSR_DELTA_RI)
-                        icount->rng++;
-        }
-
-        return 0;
-}
-
-static int handle_newLsr(struct ATENINTL_port *port, __u8 newLsr)
-{
-        struct async_icount *icount;
-
-        dbg("%s - %02x", __func__, newLsr);
-
-        if (newLsr & SERIAL_LSR_BI) {
-                /*
-                 * Parity and Framing errors only count if they occur exclusive
-                 * of a break being received.
-                 */
-                newLsr &= (__u8) (SERIAL_LSR_OE | SERIAL_LSR_BI);
-        }
-
-        /* update input line counters */
-        icount = &port->icount;
-        if (newLsr & SERIAL_LSR_BI)
-                icount->brk++;
-        if (newLsr & SERIAL_LSR_OE)
-                icount->overrun++;
-        if (newLsr & SERIAL_LSR_PE)
-                icount->parity++;
-        if (newLsr & SERIAL_LSR_FE)
-                icount->frame++;
-
-        return 0;
-}
-
-static void ATEN2011_control_callback(struct urb *urb)
-{
-        unsigned char *data;
-        struct ATENINTL_port *ATEN2011_port;
-        __u8 regval = 0x0;
-
-        switch (urb->status) {
-        case 0:
-                /* success */
-                break;
-        case -ECONNRESET:
-        case -ENOENT:
-        case -ESHUTDOWN:
-                /* this urb is terminated, clean up */
-                dbg("%s - urb shutting down with status: %d", __func__,
-                    urb->status);
-                return;
-        default:
-                dbg("%s - nonzero urb status received: %d", __func__,
-                    urb->status);
-                goto exit;
-        }
-
-        ATEN2011_port = (struct ATENINTL_port *)urb->context;
-
-        dbg("%s urb buffer size is %d", __func__, urb->actual_length);
-        dbg("%s ATEN2011_port->MsrLsr is %d port %d", __func__,
-                ATEN2011_port->MsrLsr, ATEN2011_port->port_num);
-        data = urb->transfer_buffer;
-        regval = (__u8) data[0];
-        dbg("%s data is %x", __func__, regval);
-        if (ATEN2011_port->MsrLsr == 0)
-                handle_newMsr(ATEN2011_port, regval);
-        else if (ATEN2011_port->MsrLsr == 1)
-                handle_newLsr(ATEN2011_port, regval);
-
-exit:
-        return;
-}
-
-static int ATEN2011_get_reg(struct ATENINTL_port *ATEN, __u16 Wval, __u16 reg,
-                            __u16 *val)
-{
-        struct usb_device *dev = ATEN->port->serial->dev;
-        struct usb_ctrlrequest *dr = NULL;
-        unsigned char *buffer = NULL;
-        int ret = 0;
-        buffer = (__u8 *) ATEN->ctrl_buf;
-
-        dr = (void *)(buffer + 2);
-        dr->bRequestType = ATEN_RD_RTYPE;
-        dr->bRequest = ATEN_RDREQ;
-        dr->wValue = cpu_to_le16(Wval);
-        dr->wIndex = cpu_to_le16(reg);
-        dr->wLength = cpu_to_le16(2);
-
-        usb_fill_control_urb(ATEN->control_urb, dev, usb_rcvctrlpipe(dev, 0),
-                             (unsigned char *)dr, buffer, 2,
-                             ATEN2011_control_callback, ATEN);
-        ATEN->control_urb->transfer_buffer_length = 2;
-        ret = usb_submit_urb(ATEN->control_urb, GFP_ATOMIC);
-        return ret;
-}
-
-static void ATEN2011_interrupt_callback(struct urb *urb)
-{
-        int result;
-        int length;
-        struct ATENINTL_port *ATEN2011_port;
-        struct ATENINTL_serial *ATEN2011_serial;
-        struct usb_serial *serial;
-        __u16 Data;
-        unsigned char *data;
-        __u8 sp[5], st;
-        int i;
-        __u16 wval;
-        int minor;
-
-        dbg("%s", " : Entering");
-
-        ATEN2011_serial = (struct ATENINTL_serial *)urb->context;
-
-        switch (urb->status) {
-        case 0:
-                /* success */
-                break;
-        case -ECONNRESET:
-        case -ENOENT:
-        case -ESHUTDOWN:
-                /* this urb is terminated, clean up */
-                dbg("%s - urb shutting down with status: %d", __func__,
-                    urb->status);
-                return;
-        default:
-                dbg("%s - nonzero urb status received: %d", __func__,
-                    urb->status);
-                goto exit;
-        }
-        length = urb->actual_length;
-        data = urb->transfer_buffer;
-
-        serial = ATEN2011_serial->serial;
-
-        /* ATENINTL get 5 bytes
-         * Byte 1 IIR Port 1 (port.number is 0)
-         * Byte 2 IIR Port 2 (port.number is 1)
-         * Byte 3 IIR Port 3 (port.number is 2)
-         * Byte 4 IIR Port 4 (port.number is 3)
-         * Byte 5 FIFO status for both */
-
-        if (length && length > 5) {
-                dbg("%s", "Wrong data !!!");
-                return;
-        }
-
-        /* MATRIX */
-        if (ATEN2011_serial->ATEN2011_spectrum_2or4ports == 4) {
-                sp[0] = (__u8) data[0];
-                sp[1] = (__u8) data[1];
-                sp[2] = (__u8) data[2];
-                sp[3] = (__u8) data[3];
-                st = (__u8) data[4];
-        } else {
-                sp[0] = (__u8) data[0];
-                sp[1] = (__u8) data[2];
-                /* sp[2]=(__u8)data[2]; */
-                /* sp[3]=(__u8)data[3]; */
-                st = (__u8) data[4];
-
-        }
-        for (i = 0; i < serial->num_ports; i++) {
-                ATEN2011_port = usb_get_serial_port_data(serial->port[i]);
-                minor = serial->minor;
-                if (minor == SERIAL_TTY_NO_MINOR)
-                        minor = 0;
-                if ((ATEN2011_serial->ATEN2011_spectrum_2or4ports == 2)
-                    && (i != 0))
-                        wval =
-                            (((__u16) serial->port[i]->number -
-                              (__u16) (minor)) + 2) << 8;
-                else
-                        wval =
-                            (((__u16) serial->port[i]->number -
-                              (__u16) (minor)) + 1) << 8;
-                if (ATEN2011_port->open != 0) {
-                        if (sp[i] & 0x01) {
-                                dbg("SP%d No Interrupt !!!", i);
-                        } else {
-                                switch (sp[i] & 0x0f) {
-                                case SERIAL_IIR_RLS:
-                                        dbg("Serial Port %d: Receiver status error or address bit detected in 9-bit mode", i);
-                                        ATEN2011_port->MsrLsr = 1;
-                                        ATEN2011_get_reg(ATEN2011_port, wval,
-                                                         LINE_STATUS_REGISTER,
-                                                         &Data);
-                                        break;
-                                case SERIAL_IIR_MS:
-                                        dbg("Serial Port %d: Modem status change", i);
-                                        ATEN2011_port->MsrLsr = 0;
-                                        ATEN2011_get_reg(ATEN2011_port, wval,
-                                                         MODEM_STATUS_REGISTER,
-                                                         &Data);
-                                        break;
-                                }
-                        }
-                }
-
-        }
-exit:
-        if (ATEN2011_serial->status_polling_started == 0)
-                return;
-
-        result = usb_submit_urb(urb, GFP_ATOMIC);
-        if (result) {
-                dev_err(&urb->dev->dev,
-                        "%s - Error %d submitting interrupt urb\n",
-                        __func__, result);
-        }
-
-        return;
-}
-
-static void ATEN2011_bulk_in_callback(struct urb *urb)
-{
-        int status;
-        unsigned char *data;
-        struct usb_serial *serial;
-        struct usb_serial_port *port;
-        struct ATENINTL_serial *ATEN2011_serial;
-        struct ATENINTL_port *ATEN2011_port;
-        struct tty_struct *tty;
-
-        if (urb->status) {
-                dbg("nonzero read bulk status received: %d", urb->status);
-                return;
-        }
-
-        ATEN2011_port = (struct ATENINTL_port *)urb->context;
-
-        port = (struct usb_serial_port *)ATEN2011_port->port;
-        serial = port->serial;
-
-        dbg("%s", "Entering...");
-
-        data = urb->transfer_buffer;
-        ATEN2011_serial = usb_get_serial_data(serial);
-
-        if (urb->actual_length) {
-                tty = tty_port_tty_get(&ATEN2011_port->port->port);
-                if (tty) {
-                        tty_buffer_request_room(tty, urb->actual_length);
-                        tty_insert_flip_string(tty, data, urb->actual_length);
-                        tty_flip_buffer_push(tty);
-                        tty_kref_put(tty);
-                }
-
-                ATEN2011_port->icount.rx += urb->actual_length;
-                dbg("ATEN2011_port->icount.rx is %d:",
-                        ATEN2011_port->icount.rx);
-        }
-
-        if (!ATEN2011_port->read_urb) {
-                dbg("%s", "URB KILLED !!!");
-                return;
-        }
-
-        if (ATEN2011_port->read_urb->status != -EINPROGRESS) {
-                ATEN2011_port->read_urb->dev = serial->dev;
-
-                status = usb_submit_urb(ATEN2011_port->read_urb, GFP_ATOMIC);
-                if (status)
-                        dbg("usb_submit_urb(read bulk) failed, status = %d", status);
-        }
-}
-
-static void ATEN2011_bulk_out_data_callback(struct urb *urb)
-{
-        struct ATENINTL_port *ATEN2011_port;
-        struct tty_struct *tty;
-
-        if (urb->status) {
-                dbg("nonzero write bulk status received:%d", urb->status);
-                return;
-        }
-
-        ATEN2011_port = (struct ATENINTL_port *)urb->context;
-
-        dbg("%s", "Entering .........");
-
-        tty = tty_port_tty_get(&ATEN2011_port->port->port);
-
-        if (tty && ATEN2011_port->open)
-                /* tell the tty driver that something has changed */
-                tty_wakeup(tty);
-
-        /* schedule_work(&ATEN2011_port->port->work); */
-        tty_kref_put(tty);
-
-}
-
-#ifdef ATENSerialProbe
-static int ATEN2011_serial_probe(struct usb_serial *serial,
-                                 const struct usb_device_id *id)
-{
-
-        /*need to implement the mode_reg reading and updating\
-           structures usb_serial_ device_type\
-           (i.e num_ports, num_bulkin,bulkout etc) */
-        /* Also we can update the changes  attach */
-        return 1;
-}
-#endif
-
-static int ATEN2011_open(struct tty_struct *tty, struct usb_serial_port *port,
-                         struct file *filp)
-{
-        int response;
-        int j;
-        struct usb_serial *serial;
-        struct urb *urb;
-        __u16 Data;
-        int status;
-        struct ATENINTL_serial *ATEN2011_serial;
-        struct ATENINTL_port *ATEN2011_port;
-        struct ktermios tmp_termios;
-        int minor;
-
-        serial = port->serial;
-
-        ATEN2011_port = usb_get_serial_port_data(port);
-
-        if (ATEN2011_port == NULL)
-                return -ENODEV;
-
-        ATEN2011_serial = usb_get_serial_data(serial);
-        if (ATEN2011_serial == NULL)
-                return -ENODEV;
-
-        /* increment the number of opened ports counter here */
-        ATEN2011_serial->NoOfOpenPorts++;
-
-        usb_clear_halt(serial->dev, port->write_urb->pipe);
-        usb_clear_halt(serial->dev, port->read_urb->pipe);
-
-        /* Initialising the write urb pool */
-        for (j = 0; j < NUM_URBS; ++j) {
-                urb = usb_alloc_urb(0, GFP_ATOMIC);
-                ATEN2011_port->write_urb_pool[j] = urb;
-
-                if (urb == NULL) {
-                        err("No more urbs???");
-                        continue;
-                }
-
-                urb->transfer_buffer = NULL;
-                urb->transfer_buffer =
-                    kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL);
-                if (!urb->transfer_buffer) {
-                        err("%s-out of memory for urb buffers.", __func__);
-                        continue;
-                }
-        }
-
-/*****************************************************************************
- * Initialize ATEN2011 -- Write Init values to corresponding Registers
- *
- * Register Index
- * 1 : IER
- * 2 : FCR
- * 3 : LCR
- * 4 : MCR
- *
- * 0x08 : SP1/2 Control Reg
- *****************************************************************************/
-
-/* NEED to check the fallowing Block */
-
-        Data = 0x0;
-        status = get_reg_sync(port, ATEN2011_port->SpRegOffset, &Data);
-        if (status < 0) {
-                dbg("Reading Spreg failed");
-                return -1;
-        }
-        Data |= 0x80;
-        status = set_reg_sync(port, ATEN2011_port->SpRegOffset, Data);
-        if (status < 0) {
-                dbg("writing Spreg failed");
-                return -1;
-        }
-
-        Data &= ~0x80;
-        status = set_reg_sync(port, ATEN2011_port->SpRegOffset, Data);
-        if (status < 0) {
-                dbg("writing Spreg failed");
-                return -1;
-        }
-
-/* End of block to be checked */
-/**************************CHECK***************************/
-
-        if (RS485mode == 0)
-                Data = 0xC0;
-        else
-                Data = 0x00;
-        status = set_uart_reg(port, SCRATCH_PAD_REGISTER, Data);
-        if (status < 0) {
-                dbg("Writing SCRATCH_PAD_REGISTER failed status-0x%x", status);
-                return -1;
-        } else
-                dbg("SCRATCH_PAD_REGISTER Writing success status%d", status);
-
-/**************************CHECK***************************/
-
-        Data = 0x0;
-        status = get_reg_sync(port, ATEN2011_port->ControlRegOffset, &Data);
-        if (status < 0) {
-                dbg("Reading Controlreg failed");
-                return -1;
-        }
-        Data |= 0x08;           /* Driver done bit */
-        Data |= 0x20;           /* rx_disable */
-        status = 0;
-        status =
-            set_reg_sync(port, ATEN2011_port->ControlRegOffset, Data);
-        if (status < 0) {
-                dbg("writing Controlreg failed");
-                return -1;
-        }
-        /*
-         * do register settings here
-         * Set all regs to the device default values.
-         * First Disable all interrupts.
-         */
-
-        Data = 0x00;
-        status = set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data);
-        if (status < 0) {
-                dbg("disableing interrupts failed");
-                return -1;
-        }
-        /* Set FIFO_CONTROL_REGISTER to the default value */
-        Data = 0x00;
-        status = set_uart_reg(port, FIFO_CONTROL_REGISTER, Data);
-        if (status < 0) {
-                dbg("Writing FIFO_CONTROL_REGISTER  failed");
-                return -1;
-        }
-
-        Data = 0xcf;            /* chk */
-        status = set_uart_reg(port, FIFO_CONTROL_REGISTER, Data);
-        if (status < 0) {
-                dbg("Writing FIFO_CONTROL_REGISTER  failed");
-                return -1;
-        }
-
-        Data = 0x03;            /* LCR_BITS_8 */
-        status = set_uart_reg(port, LINE_CONTROL_REGISTER, Data);
-        ATEN2011_port->shadowLCR = Data;
-
-        Data = 0x0b;            /* MCR_DTR|MCR_RTS|MCR_MASTER_IE */
-        status = set_uart_reg(port, MODEM_CONTROL_REGISTER, Data);
-        ATEN2011_port->shadowMCR = Data;
-
-#ifdef Check
-        Data = 0x00;
-        status = get_uart_reg(port, LINE_CONTROL_REGISTER, &Data);
-        ATEN2011_port->shadowLCR = Data;
-
-        Data |= SERIAL_LCR_DLAB;        /* data latch enable in LCR 0x80 */
-        status = set_uart_reg(port, LINE_CONTROL_REGISTER, Data);
-
-        Data = 0x0c;
-        status = set_uart_reg(port, DIVISOR_LATCH_LSB, Data);
-
-        Data = 0x0;
-        status = set_uart_reg(port, DIVISOR_LATCH_MSB, Data);
-
-        Data = 0x00;
-        status = get_uart_reg(port, LINE_CONTROL_REGISTER, &Data);
-
-/*      Data = ATEN2011_port->shadowLCR; */     /* data latch disable */
-        Data = Data & ~SERIAL_LCR_DLAB;
-        status = set_uart_reg(port, LINE_CONTROL_REGISTER, Data);
-        ATEN2011_port->shadowLCR = Data;
-#endif
-        /* clearing Bulkin and Bulkout Fifo */
-        Data = 0x0;
-        status = get_reg_sync(port, ATEN2011_port->SpRegOffset, &Data);
-
-        Data = Data | 0x0c;
-        status = set_reg_sync(port, ATEN2011_port->SpRegOffset, Data);
-
-        Data = Data & ~0x0c;
-        status = set_reg_sync(port, ATEN2011_port->SpRegOffset, Data);
-        /* Finally enable all interrupts */
-        Data = 0x0;
-        Data = 0x0c;
-        status = set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data);
-
-        /* clearing rx_disable */
-        Data = 0x0;
-        status = get_reg_sync(port, ATEN2011_port->ControlRegOffset, &Data);
-        Data = Data & ~0x20;
-        status = set_reg_sync(port, ATEN2011_port->ControlRegOffset, Data);
-
-        /* rx_negate */
-        Data = 0x0;
-        status = get_reg_sync(port, ATEN2011_port->ControlRegOffset, &Data);
-        Data = Data | 0x10;
-        status = 0;
-        status = set_reg_sync(port, ATEN2011_port->ControlRegOffset, Data);
-
-        /*
-         * Check to see if we've set up our endpoint info yet
-         * (can't set it up in ATEN2011_startup as the structures
-         * were not set up at that time.)
-         */
-        if (ATEN2011_serial->NoOfOpenPorts == 1) {
-                /* start the status polling here */
-                ATEN2011_serial->status_polling_started = 1;
-                /* If not yet set, Set here */
-                ATEN2011_serial->interrupt_in_buffer =
-                    serial->port[0]->interrupt_in_buffer;
-                ATEN2011_serial->interrupt_in_endpoint =
-                    serial->port[0]->interrupt_in_endpointAddress;
-                ATEN2011_serial->interrupt_read_urb =
-                    serial->port[0]->interrupt_in_urb;
-
-                /* set up interrupt urb */
-                usb_fill_int_urb(ATEN2011_serial->interrupt_read_urb,
-                                 serial->dev,
-                                 usb_rcvintpipe(serial->dev,
-                                                ATEN2011_serial->
-                                                interrupt_in_endpoint),
-                                 ATEN2011_serial->interrupt_in_buffer,
-                                 ATEN2011_serial->interrupt_read_urb->
-                                 transfer_buffer_length,
-                                 ATEN2011_interrupt_callback, ATEN2011_serial,
-                                 ATEN2011_serial->interrupt_read_urb->interval);
-
-                /* start interrupt read for ATEN2011               *
-                 * will continue as long as ATEN2011 is connected  */
-
-                response =
-                    usb_submit_urb(ATEN2011_serial->interrupt_read_urb,
-                                   GFP_KERNEL);
-                if (response) {
-                        dbg("%s - Error %d submitting interrupt urb",
-                                __func__, response);
-                }
-
-        }
-
-        /*
-         * See if we've set up our endpoint info yet
-         * (can't set it up in ATEN2011_startup as the
-         * structures were not set up at that time.)
-         */
-
-        dbg("port number is %d", port->number);
-        dbg("serial number is %d", port->serial->minor);
-        dbg("Bulkin endpoint is %d", port->bulk_in_endpointAddress);
-        dbg("BulkOut endpoint is %d", port->bulk_out_endpointAddress);
-        dbg("Interrupt endpoint is %d",
-                port->interrupt_in_endpointAddress);
-        dbg("port's number in the device is %d", ATEN2011_port->port_num);
-        ATEN2011_port->bulk_in_buffer = port->bulk_in_buffer;
-        ATEN2011_port->bulk_in_endpoint = port->bulk_in_endpointAddress;
-        ATEN2011_port->read_urb = port->read_urb;
-        ATEN2011_port->bulk_out_endpoint = port->bulk_out_endpointAddress;
-
-        minor = port->serial->minor;
-        if (minor == SERIAL_TTY_NO_MINOR)
-                minor = 0;
-
-        /* set up our bulk in urb */
-        if ((ATEN2011_serial->ATEN2011_spectrum_2or4ports == 2)
-            && (((__u16) port->number - (__u16) (minor)) != 0)) {
-                usb_fill_bulk_urb(ATEN2011_port->read_urb, serial->dev,
-                                  usb_rcvbulkpipe(serial->dev,
-                                                  (port->
-                                                   bulk_in_endpointAddress +
-                                                   2)), port->bulk_in_buffer,
-                                  ATEN2011_port->read_urb->
-                                  transfer_buffer_length,
-                                  ATEN2011_bulk_in_callback, ATEN2011_port);
-        } else
-                usb_fill_bulk_urb(ATEN2011_port->read_urb,
-                                  serial->dev,
-                                  usb_rcvbulkpipe(serial->dev,
-                                                  port->
-                                                  bulk_in_endpointAddress),
-                                  port->bulk_in_buffer,
-                                  ATEN2011_port->read_urb->
-                                  transfer_buffer_length,
-                                  ATEN2011_bulk_in_callback, ATEN2011_port);
-
-        dbg("ATEN2011_open: bulkin endpoint is %d",
-                port->bulk_in_endpointAddress);
-        response = usb_submit_urb(ATEN2011_port->read_urb, GFP_KERNEL);
-        if (response) {
-                err("%s - Error %d submitting control urb", __func__,
-                    response);
-        }
-
-        /* initialize our wait queues */
-        init_waitqueue_head(&ATEN2011_port->wait_chase);
-        init_waitqueue_head(&ATEN2011_port->wait_command);
-
-        /* initialize our icount structure */
-        memset(&(ATEN2011_port->icount), 0x00, sizeof(ATEN2011_port->icount));
-
-        /* initialize our port settings */
-        ATEN2011_port->shadowMCR = MCR_MASTER_IE;       /* Must set to enable ints! */
-        ATEN2011_port->chaseResponsePending = 0;
-        /* send a open port command */
-        ATEN2011_port->open = 1;
-        /* ATEN2011_change_port_settings(ATEN2011_port,old_termios); */
-        /* Setup termios */
-        ATEN2011_set_termios(tty, port, &tmp_termios);
-        ATEN2011_port->icount.tx = 0;
-        ATEN2011_port->icount.rx = 0;
-
-        dbg("usb_serial serial:%x       ATEN2011_port:%x\nATEN2011_serial:%x      usb_serial_port port:%x",
-             (unsigned int)serial, (unsigned int)ATEN2011_port,
-             (unsigned int)ATEN2011_serial, (unsigned int)port);
-
-        return 0;
-
-}
-
-static int ATEN2011_chars_in_buffer(struct tty_struct *tty)
-{
-        struct usb_serial_port *port = tty->driver_data;
-        int i;
-        int chars = 0;
-        struct ATENINTL_port *ATEN2011_port;
-
-        /* dbg("%s"," ATEN2011_chars_in_buffer:entering ..........."); */
-
-        ATEN2011_port = usb_get_serial_port_data(port);
-        if (ATEN2011_port == NULL) {
-                dbg("%s", "ATEN2011_break:leaving ...........");
-                return -1;
-        }
-
-        for (i = 0; i < NUM_URBS; ++i)
-                if (ATEN2011_port->write_urb_pool[i]->status == -EINPROGRESS)
-                        chars += URB_TRANSFER_BUFFER_SIZE;
-
-        dbg("%s - returns %d", __func__, chars);
-        return chars;
-
-}
-
-static void ATEN2011_block_until_tx_empty(struct tty_struct *tty,
-                                          struct ATENINTL_port *ATEN2011_port)
-{
-        int timeout = HZ / 10;
-        int wait = 30;
-        int count;
-
-        while (1) {
-                count = ATEN2011_chars_in_buffer(tty);
-
-                /* Check for Buffer status */
-                if (count <= 0)
-                        return;
-
-                /* Block the thread for a while */
-                interruptible_sleep_on_timeout(&ATEN2011_port->wait_chase,
-                                               timeout);
-
-                /* No activity.. count down section */
-                wait--;
-                if (wait == 0) {
-                        dbg("%s - TIMEOUT", __func__);
-                        return;
-                } else {
-                        /* Reset timout value back to seconds */
-                        wait = 30;
-                }
-        }
-}
-
-static void ATEN2011_close(struct tty_struct *tty, struct usb_serial_port *port,
-                           struct file *filp)
-{
-        struct usb_serial *serial;
-        struct ATENINTL_serial *ATEN2011_serial;
-        struct ATENINTL_port *ATEN2011_port;
-        int no_urbs;
-        __u16 Data;
-
-        dbg("%s", "ATEN2011_close:entering...");
-        serial = port->serial;
-
-        /* take the Adpater and port's private data */
-        ATEN2011_serial = usb_get_serial_data(serial);
-        ATEN2011_port = usb_get_serial_port_data(port);
-        if ((ATEN2011_serial == NULL) || (ATEN2011_port == NULL))
-                return;
-
-        if (serial->dev) {
-                /* flush and block(wait) until tx is empty */
-                ATEN2011_block_until_tx_empty(tty, ATEN2011_port);
-        }
-        /* kill the ports URB's */
-        for (no_urbs = 0; no_urbs < NUM_URBS; no_urbs++)
-                usb_kill_urb(ATEN2011_port->write_urb_pool[no_urbs]);
-        /* Freeing Write URBs */
-        for (no_urbs = 0; no_urbs < NUM_URBS; ++no_urbs) {
-                kfree(ATEN2011_port->write_urb_pool[no_urbs]->transfer_buffer);
-                usb_free_urb(ATEN2011_port->write_urb_pool[no_urbs]);
-        }
-        /* While closing port, shutdown all bulk read, write  *
-         * and interrupt read if they exists                  */
-        if (serial->dev) {
-                if (ATEN2011_port->write_urb) {
-                        dbg("%s", "Shutdown bulk write");
-                        usb_kill_urb(ATEN2011_port->write_urb);
-                }
-                if (ATEN2011_port->read_urb) {
-                        dbg("%s", "Shutdown bulk read");
-                        usb_kill_urb(ATEN2011_port->read_urb);
-                }
-                if ((&ATEN2011_port->control_urb)) {
-                        dbg("%s", "Shutdown control read");
-                        /* usb_kill_urb (ATEN2011_port->control_urb); */
-
-                }
-        }
-        /* if(ATEN2011_port->ctrl_buf != NULL) */
-                /* kfree(ATEN2011_port->ctrl_buf); */
-        /* decrement the no.of open ports counter of an individual USB-serial adapter. */
-        ATEN2011_serial->NoOfOpenPorts--;
-        dbg("NoOfOpenPorts in close%d:in port%d",
-                ATEN2011_serial->NoOfOpenPorts, port->number);
-        if (ATEN2011_serial->NoOfOpenPorts == 0) {
-                /* stop the stus polling here */
-                ATEN2011_serial->status_polling_started = 0;
-                if (ATEN2011_serial->interrupt_read_urb) {
-                        dbg("%s", "Shutdown interrupt_read_urb");
-                        /* ATEN2011_serial->interrupt_in_buffer=NULL; */
-                        /* usb_kill_urb (ATEN2011_serial->interrupt_read_urb); */
-                }
-        }
-        if (ATEN2011_port->write_urb) {
-                /* if this urb had a transfer buffer already (old tx) free it */
-                kfree(ATEN2011_port->write_urb->transfer_buffer);
-                usb_free_urb(ATEN2011_port->write_urb);
-        }
-
-        /* clear the MCR & IER */
-        Data = 0x00;
-        set_uart_reg(port, MODEM_CONTROL_REGISTER, Data);
-        Data = 0x00;
-        set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data);
-
-        ATEN2011_port->open = 0;
-        dbg("%s", "Leaving ............");
-
-}
-
-static void ATEN2011_block_until_chase_response(struct tty_struct *tty,
-                                                struct ATENINTL_port
-                                                *ATEN2011_port)
-{
-        int timeout = 1 * HZ;
-        int wait = 10;
-        int count;
-
-        while (1) {
-                count = ATEN2011_chars_in_buffer(tty);
-
-                /* Check for Buffer status */
-                if (count <= 0) {
-                        ATEN2011_port->chaseResponsePending = 0;
-                        return;
-                }
-
-                /* Block the thread for a while */
-                interruptible_sleep_on_timeout(&ATEN2011_port->wait_chase,
-                                               timeout);
-                /* No activity.. count down section */
-                wait--;
-                if (wait == 0) {
-                        dbg("%s - TIMEOUT", __func__);
-                        return;
-                } else {
-                        /* Reset timout value back to seconds */
-                        wait = 10;
-                }
-        }
-
-}
-
-static void ATEN2011_break(struct tty_struct *tty, int break_state)
-{
-        struct usb_serial_port *port = tty->driver_data;
-        unsigned char data;
-        struct usb_serial *serial;
-        struct ATENINTL_serial *ATEN2011_serial;
-        struct ATENINTL_port *ATEN2011_port;
-
-        dbg("%s", "Entering ...........");
-        dbg("ATEN2011_break: Start");
-
-        serial = port->serial;
-
-        ATEN2011_serial = usb_get_serial_data(serial);
-        ATEN2011_port = usb_get_serial_port_data(port);
-
-        if ((ATEN2011_serial == NULL) || (ATEN2011_port == NULL))
-                return;
-
-        /* flush and chase */
-        ATEN2011_port->chaseResponsePending = 1;
-
-        if (serial->dev) {
-                /* flush and block until tx is empty */
-                ATEN2011_block_until_chase_response(tty, ATEN2011_port);
-        }
-
-        if (break_state == -1)
-                data = ATEN2011_port->shadowLCR | LCR_SET_BREAK;
-        else
-                data = ATEN2011_port->shadowLCR & ~LCR_SET_BREAK;
-
-        ATEN2011_port->shadowLCR = data;
-        dbg("ATEN2011_break ATEN2011_port->shadowLCR is %x",
-                ATEN2011_port->shadowLCR);
-        set_uart_reg(port, LINE_CONTROL_REGISTER, ATEN2011_port->shadowLCR);
-
-        return;
-}
-
-static int ATEN2011_write_room(struct tty_struct *tty)
-{
-        struct usb_serial_port *port = tty->driver_data;
-        int i;
-        int room = 0;
-        struct ATENINTL_port *ATEN2011_port;
-
-        ATEN2011_port = usb_get_serial_port_data(port);
-        if (ATEN2011_port == NULL) {
-                dbg("%s", "ATEN2011_break:leaving ...........");
-                return -1;
-        }
-
-        for (i = 0; i < NUM_URBS; ++i)
-                if (ATEN2011_port->write_urb_pool[i]->status != -EINPROGRESS)
-                        room += URB_TRANSFER_BUFFER_SIZE;
-
-        dbg("%s - returns %d", __func__, room);
-        return room;
-
-}
-
-static int ATEN2011_write(struct tty_struct *tty, struct usb_serial_port *port,
-                          const unsigned char *data, int count)
-{
-        int status;
-        int i;
-        int bytes_sent = 0;
-        int transfer_size;
-        int minor;
-
-        struct ATENINTL_port *ATEN2011_port;
-        struct usb_serial *serial;
-        struct ATENINTL_serial *ATEN2011_serial;
-        struct urb *urb;
-        const unsigned char *current_position = data;
-        unsigned char *data1;
-        dbg("%s", "entering ...........");
-
-        serial = port->serial;
-
-        ATEN2011_port = usb_get_serial_port_data(port);
-        if (ATEN2011_port == NULL) {
-                dbg("%s", "ATEN2011_port is NULL");
-                return -1;
-        }
-
-        ATEN2011_serial = usb_get_serial_data(serial);
-        if (ATEN2011_serial == NULL) {
-                dbg("%s", "ATEN2011_serial is NULL");
-                return -1;
-        }
-
-        /* try to find a free urb in the list */
-        urb = NULL;
-
-        for (i = 0; i < NUM_URBS; ++i) {
-                if (ATEN2011_port->write_urb_pool[i]->status != -EINPROGRESS) {
-                        urb = ATEN2011_port->write_urb_pool[i];
-                        dbg("URB:%d", i);
-                        break;
-                }
-        }
-
-        if (urb == NULL) {
-                dbg("%s - no more free urbs", __func__);
-                goto exit;
-        }
-
-        if (urb->transfer_buffer == NULL) {
-                urb->transfer_buffer =
-                    kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL);
-
-                if (urb->transfer_buffer == NULL) {
-                        err("%s no more kernel memory...", __func__);
-                        goto exit;
-                }
-        }
-        transfer_size = min(count, URB_TRANSFER_BUFFER_SIZE);
-
-        memcpy(urb->transfer_buffer, current_position, transfer_size);
-        /* usb_serial_debug_data (__FILE__, __func__, transfer_size, urb->transfer_buffer); */
-
-        /* fill urb with data and submit  */
-        minor = port->serial->minor;
-        if (minor == SERIAL_TTY_NO_MINOR)
-                minor = 0;
-        if ((ATEN2011_serial->ATEN2011_spectrum_2or4ports == 2)
-            && (((__u16) port->number - (__u16) (minor)) != 0)) {
-                usb_fill_bulk_urb(urb, ATEN2011_serial->serial->dev,
-                                  usb_sndbulkpipe(ATEN2011_serial->serial->dev,
-                                                  (port->
-                                                   bulk_out_endpointAddress) +
-                                                  2), urb->transfer_buffer,
-                                  transfer_size,
-                                  ATEN2011_bulk_out_data_callback,
-                                  ATEN2011_port);
-        } else
-
-                usb_fill_bulk_urb(urb,
-                                  ATEN2011_serial->serial->dev,
-                                  usb_sndbulkpipe(ATEN2011_serial->serial->dev,
-                                                  port->
-                                                  bulk_out_endpointAddress),
-                                  urb->transfer_buffer, transfer_size,
-                                  ATEN2011_bulk_out_data_callback,
-                                  ATEN2011_port);
-
-        data1 = urb->transfer_buffer;
-        dbg("bulkout endpoint is %d", port->bulk_out_endpointAddress);
-        /* for(i=0;i < urb->actual_length;i++) */
-                /* dbg("Data is %c ",data1[i]); */
-
-        /* send it down the pipe */
-        status = usb_submit_urb(urb, GFP_ATOMIC);
-
-        if (status) {
-                err("%s - usb_submit_urb(write bulk) failed with status = %d",
-                    __func__, status);
-                bytes_sent = status;
-                goto exit;
-        }
-        bytes_sent = transfer_size;
-        ATEN2011_port->icount.tx += transfer_size;
-        dbg("ATEN2011_port->icount.tx is %d:", ATEN2011_port->icount.tx);
-
-exit:
-        return bytes_sent;
-}
-
-static void ATEN2011_throttle(struct tty_struct *tty)
-{
-        struct usb_serial_port *port = tty->driver_data;
-        struct ATENINTL_port *ATEN2011_port;
-        int status;
-
-        dbg("- port %d", port->number);
-
-        ATEN2011_port = usb_get_serial_port_data(port);
-
-        if (ATEN2011_port == NULL)
-                return;
-
-        if (!ATEN2011_port->open) {
-                dbg("%s", "port not opened");
-                return;
-        }
-
-        dbg("%s", "Entering .......... ");
-
-        if (!tty) {
-                dbg("%s - no tty available", __func__);
-                return;
-        }
-
-        /* if we are implementing XON/XOFF, send the stop character */
-        if (I_IXOFF(tty)) {
-                unsigned char stop_char = STOP_CHAR(tty);
-                status = ATEN2011_write(tty, port, &stop_char, 1);
-                if (status <= 0)
-                        return;
-        }
-
-        /* if we are implementing RTS/CTS, toggle that line */
-        if (tty->termios->c_cflag & CRTSCTS) {
-                ATEN2011_port->shadowMCR &= ~MCR_RTS;
-                status = set_uart_reg(port, MODEM_CONTROL_REGISTER,
-                                      ATEN2011_port->shadowMCR);
-                if (status < 0)
-                        return;
-        }
-
-        return;
-}
-
-static void ATEN2011_unthrottle(struct tty_struct *tty)
-{
-        struct usb_serial_port *port = tty->driver_data;
-        int status;
-        struct ATENINTL_port *ATEN2011_port = usb_get_serial_port_data(port);
-
-        if (ATEN2011_port == NULL)
-                return;
-
-        if (!ATEN2011_port->open) {
-                dbg("%s - port not opened", __func__);
-                return;
-        }
-
-        dbg("%s", "Entering .......... ");
-
-        if (!tty) {
-                dbg("%s - no tty available", __func__);
-                return;
-        }
-
-        /* if we are implementing XON/XOFF, send the start character */
-        if (I_IXOFF(tty)) {
-                unsigned char start_char = START_CHAR(tty);
-                status = ATEN2011_write(tty, port, &start_char, 1);
-                if (status <= 0)
-                        return;
-        }
-
-        /* if we are implementing RTS/CTS, toggle that line */
-        if (tty->termios->c_cflag & CRTSCTS) {
-                ATEN2011_port->shadowMCR |= MCR_RTS;
-                status = set_uart_reg(port, MODEM_CONTROL_REGISTER,
-                                      ATEN2011_port->shadowMCR);
-                if (status < 0)
-                        return;
-        }
-
-        return;
-}
-
-static int ATEN2011_tiocmget(struct tty_struct *tty, struct file *file)
-{
-        struct usb_serial_port *port = tty->driver_data;
-        struct ATENINTL_port *ATEN2011_port;
-        unsigned int result;
-        __u16 msr;
-        __u16 mcr;
-        /* unsigned int mcr; */
-        int status = 0;
-        ATEN2011_port = usb_get_serial_port_data(port);
-
-        dbg("%s - port %d", __func__, port->number);
-
-        if (ATEN2011_port == NULL)
-                return -ENODEV;
-
-        status = get_uart_reg(port, MODEM_STATUS_REGISTER, &msr);
-        status = get_uart_reg(port, MODEM_CONTROL_REGISTER, &mcr);
-        /* mcr = ATEN2011_port->shadowMCR; */
-        /* COMMENT2: the Fallowing three line are commented for updating only MSR values */
-        result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0)
-            | ((mcr & MCR_RTS) ? TIOCM_RTS : 0)
-            | ((mcr & MCR_LOOPBACK) ? TIOCM_LOOP : 0)
-            | ((msr & ATEN2011_MSR_CTS) ? TIOCM_CTS : 0)
-            | ((msr & ATEN2011_MSR_CD) ? TIOCM_CAR : 0)
-            | ((msr & ATEN2011_MSR_RI) ? TIOCM_RI : 0)
-            | ((msr & ATEN2011_MSR_DSR) ? TIOCM_DSR : 0);
-
-        dbg("%s - 0x%04X", __func__, result);
-
-        return result;
-}
-
-static int ATEN2011_tiocmset(struct tty_struct *tty, struct file *file,
-                             unsigned int set, unsigned int clear)
-{
-        struct usb_serial_port *port = tty->driver_data;
-        struct ATENINTL_port *ATEN2011_port;
-        unsigned int mcr;
-        unsigned int status;
-
-        dbg("%s - port %d", __func__, port->number);
-
-        ATEN2011_port = usb_get_serial_port_data(port);
-
-        if (ATEN2011_port == NULL)
-                return -ENODEV;
-
-        mcr = ATEN2011_port->shadowMCR;
-        if (clear & TIOCM_RTS)
-                mcr &= ~MCR_RTS;
-        if (clear & TIOCM_DTR)
-                mcr &= ~MCR_DTR;
-        if (clear & TIOCM_LOOP)
-                mcr &= ~MCR_LOOPBACK;
-
-        if (set & TIOCM_RTS)
-                mcr |= MCR_RTS;
-        if (set & TIOCM_DTR)
-                mcr |= MCR_DTR;
-        if (set & TIOCM_LOOP)
-                mcr |= MCR_LOOPBACK;
-
-        ATEN2011_port->shadowMCR = mcr;
-
-        status = set_uart_reg(port, MODEM_CONTROL_REGISTER, mcr);
-        if (status < 0) {
-                dbg("setting MODEM_CONTROL_REGISTER Failed");
-                return -1;
-        }
-
-        return 0;
-}
-
-static void ATEN2011_set_termios(struct tty_struct *tty,
-                                 struct usb_serial_port *port,
-                                 struct ktermios *old_termios)
-{
-        int status;
-        unsigned int cflag;
-        struct usb_serial *serial;
-        struct ATENINTL_port *ATEN2011_port;
-
-        dbg("ATEN2011_set_termios: START");
-
-        serial = port->serial;
-
-        ATEN2011_port = usb_get_serial_port_data(port);
-
-        if (ATEN2011_port == NULL)
-                return;
-
-        if (!ATEN2011_port->open) {
-                dbg("%s - port not opened", __func__);
-                return;
-        }
-
-        dbg("%s", "setting termios - ");
-
-        cflag = tty->termios->c_cflag;
-
-        dbg("%s - cflag %08x iflag %08x", __func__,
-            tty->termios->c_cflag, RELEVANT_IFLAG(tty->termios->c_iflag));
-
-        if (old_termios) {
-                dbg("%s - old clfag %08x old iflag %08x", __func__,
-                    old_termios->c_cflag, RELEVANT_IFLAG(old_termios->c_iflag));
-        }
-
-        dbg("%s - port %d", __func__, port->number);
-
-        /* change the port settings to the new ones specified */
-
-        ATEN2011_change_port_settings(tty, ATEN2011_port, old_termios);
-
-        if (!ATEN2011_port->read_urb) {
-                dbg("%s", "URB KILLED !!!!!");
-                return;
-        }
-
-        if (ATEN2011_port->read_urb->status != -EINPROGRESS) {
-                ATEN2011_port->read_urb->dev = serial->dev;
-                status = usb_submit_urb(ATEN2011_port->read_urb, GFP_ATOMIC);
-                if (status) {
-                        dbg
-                            (" usb_submit_urb(read bulk) failed, status = %d",
-                             status);
-                }
-        }
-        return;
-}
-
-static int get_lsr_info(struct tty_struct *tty,
-                        struct ATENINTL_port *ATEN2011_port,
-                        unsigned int __user *value)
-{
-        int count;
-        unsigned int result = 0;
-
-        count = ATEN2011_chars_in_buffer(tty);
-        if (count == 0) {
-                dbg("%s -- Empty", __func__);
-                result = TIOCSER_TEMT;
-        }
-
-        if (copy_to_user(value, &result, sizeof(int)))
-                return -EFAULT;
-        return 0;
-}
-
-static int get_number_bytes_avail(struct tty_struct *tty,
-                                  struct ATENINTL_port *ATEN2011_port,
-                                  unsigned int __user *value)
-{
-        unsigned int result = 0;
-
-        if (!tty)
-                return -ENOIOCTLCMD;
-
-        result = tty->read_cnt;
-
-        dbg("%s(%d) = %d", __func__, ATEN2011_port->port->number, result);
-        if (copy_to_user(value, &result, sizeof(int)))
-                return -EFAULT;
-
-        return -ENOIOCTLCMD;
-}
-
-static int set_modem_info(struct ATENINTL_port *ATEN2011_port, unsigned int cmd,
-                          unsigned int __user *value)
-{
-        unsigned int mcr;
-        unsigned int arg;
-        __u16 Data;
-        int status;
-        struct usb_serial_port *port;
-
-        if (ATEN2011_port == NULL)
-                return -1;
-
-        port = (struct usb_serial_port *)ATEN2011_port->port;
-
-        mcr = ATEN2011_port->shadowMCR;
-
-        if (copy_from_user(&arg, value, sizeof(int)))
-                return -EFAULT;
-
-        switch (cmd) {
-        case TIOCMBIS:
-                if (arg & TIOCM_RTS)
-                        mcr |= MCR_RTS;
-                if (arg & TIOCM_DTR)
-                        mcr |= MCR_RTS;
-                if (arg & TIOCM_LOOP)
-                        mcr |= MCR_LOOPBACK;
-                break;
-
-        case TIOCMBIC:
-                if (arg & TIOCM_RTS)
-                        mcr &= ~MCR_RTS;
-                if (arg & TIOCM_DTR)
-                        mcr &= ~MCR_RTS;
-                if (arg & TIOCM_LOOP)
-                        mcr &= ~MCR_LOOPBACK;
-                break;
-
-        case TIOCMSET:
-                /* turn off the RTS and DTR and LOOPBACK
-                 * and then only turn on what was asked to */
-                mcr &= ~(MCR_RTS | MCR_DTR | MCR_LOOPBACK);
-                mcr |= ((arg & TIOCM_RTS) ? MCR_RTS : 0);
-                mcr |= ((arg & TIOCM_DTR) ? MCR_DTR : 0);
-                mcr |= ((arg & TIOCM_LOOP) ? MCR_LOOPBACK : 0);
-                break;
-        }
-
-        ATEN2011_port->shadowMCR = mcr;
-
-        Data = ATEN2011_port->shadowMCR;
-        status = set_uart_reg(port, MODEM_CONTROL_REGISTER, Data);
-        if (status < 0) {
-                dbg("setting MODEM_CONTROL_REGISTER Failed");
-                return -1;
-        }
-
-        return 0;
-}
-
-static int get_modem_info(struct ATENINTL_port *ATEN2011_port,
-                          unsigned int __user *value)
-{
-        unsigned int result = 0;
-        __u16 msr;
-        unsigned int mcr = ATEN2011_port->shadowMCR;
-        int status;
-
-        status = get_uart_reg(ATEN2011_port->port, MODEM_STATUS_REGISTER, &msr);
-        result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0)      /* 0x002 */
-            |((mcr & MCR_RTS) ? TIOCM_RTS : 0)  /* 0x004 */
-            |((msr & ATEN2011_MSR_CTS) ? TIOCM_CTS : 0) /* 0x020 */
-            |((msr & ATEN2011_MSR_CD) ? TIOCM_CAR : 0)  /* 0x040 */
-            |((msr & ATEN2011_MSR_RI) ? TIOCM_RI : 0)   /* 0x080 */
-            |((msr & ATEN2011_MSR_DSR) ? TIOCM_DSR : 0);        /* 0x100 */
-
-        dbg("%s -- %x", __func__, result);
-
-        if (copy_to_user(value, &result, sizeof(int)))
-                return -EFAULT;
-        return 0;
-}
-
-static int get_serial_info(struct ATENINTL_port *ATEN2011_port,
-                           struct serial_struct __user *retinfo)
-{
-        struct serial_struct tmp;
-
-        if (ATEN2011_port == NULL)
-                return -1;
-
-        if (!retinfo)
-                return -EFAULT;
-
-        memset(&tmp, 0, sizeof(tmp));
-
-        tmp.type = PORT_16550A;
-        tmp.line = ATEN2011_port->port->serial->minor;
-        if (tmp.line == SERIAL_TTY_NO_MINOR)
-                tmp.line = 0;
-        tmp.port = ATEN2011_port->port->number;
-        tmp.irq = 0;
-        tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
-        tmp.xmit_fifo_size = NUM_URBS * URB_TRANSFER_BUFFER_SIZE;
-        tmp.baud_base = 9600;
-        tmp.close_delay = 5 * HZ;
-        tmp.closing_wait = 30 * HZ;
-
-        if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
-                return -EFAULT;
-        return 0;
-}
-
-static int ATEN2011_ioctl(struct tty_struct *tty, struct file *file,
-                          unsigned int cmd, unsigned long arg)
-{
-        struct usb_serial_port *port = tty->driver_data;
-        struct ATENINTL_port *ATEN2011_port;
-        struct async_icount cnow;
-        struct async_icount cprev;
-        struct serial_icounter_struct icount;
-        int ATENret = 0;
-        unsigned int __user *user_arg = (unsigned int __user *)arg;
-
-        ATEN2011_port = usb_get_serial_port_data(port);
-
-        if (ATEN2011_port == NULL)
-                return -1;
-
-        dbg("%s - port %d, cmd = 0x%x", __func__, port->number, cmd);
-
-        switch (cmd) {
-                /* return number of bytes available */
-
-        case TIOCINQ:
-                dbg("%s (%d) TIOCINQ", __func__, port->number);
-                return get_number_bytes_avail(tty, ATEN2011_port, user_arg);
-                break;
-
-        case TIOCOUTQ:
-                dbg("%s (%d) TIOCOUTQ", __func__, port->number);
-                return put_user(ATEN2011_chars_in_buffer(tty), user_arg);
-                break;
-
-        case TIOCSERGETLSR:
-                dbg("%s (%d) TIOCSERGETLSR", __func__, port->number);
-                return get_lsr_info(tty, ATEN2011_port, user_arg);
-                return 0;
-
-        case TIOCMBIS:
-        case TIOCMBIC:
-        case TIOCMSET:
-                dbg("%s (%d) TIOCMSET/TIOCMBIC/TIOCMSET", __func__,
-                    port->number);
-                ATENret = set_modem_info(ATEN2011_port, cmd, user_arg);
-                return ATENret;
-
-        case TIOCMGET:
-                dbg("%s (%d) TIOCMGET", __func__, port->number);
-                return get_modem_info(ATEN2011_port, user_arg);
-
-        case TIOCGSERIAL:
-                dbg("%s (%d) TIOCGSERIAL", __func__, port->number);
-                return get_serial_info(ATEN2011_port,
-                                       (struct serial_struct __user *)arg);
-
-        case TIOCSSERIAL:
-                dbg("%s (%d) TIOCSSERIAL", __func__, port->number);
-                break;
-
-        case TIOCMIWAIT:
-                dbg("%s (%d) TIOCMIWAIT", __func__, port->number);
-                cprev = ATEN2011_port->icount;
-                while (1) {
-                        /* see if a signal did it */
-                        if (signal_pending(current))
-                                return -ERESTARTSYS;
-                        cnow = ATEN2011_port->icount;
-                        if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
-                            cnow.dcd == cprev.dcd && cnow.cts == cprev.cts)
-                                return -EIO;    /* no change => error */
-                        if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
-                            ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
-                            ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) ||
-                            ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) {
-                                return 0;
-                        }
-                        cprev = cnow;
-                }
-                /* NOTREACHED */
-                break;
-
-        case TIOCGICOUNT:
-                cnow = ATEN2011_port->icount;
-                icount.cts = cnow.cts;
-                icount.dsr = cnow.dsr;
-                icount.rng = cnow.rng;
-                icount.dcd = cnow.dcd;
-                icount.rx = cnow.rx;
-                icount.tx = cnow.tx;
-                icount.frame = cnow.frame;
-                icount.overrun = cnow.overrun;
-                icount.parity = cnow.parity;
-                icount.brk = cnow.brk;
-                icount.buf_overrun = cnow.buf_overrun;
-
-                dbg("%s (%d) TIOCGICOUNT RX=%d, TX=%d", __func__,
-                    port->number, icount.rx, icount.tx);
-                if (copy_to_user((void __user *)arg, &icount, sizeof(icount)))
-                        return -EFAULT;
-                return 0;
-
-        default:
-                break;
-        }
-
-        return -ENOIOCTLCMD;
-}
-
-static int ATEN2011_calc_baud_rate_divisor(int baudRate, int *divisor,
-                                           __u16 *clk_sel_val)
-{
-        dbg("%s - %d", __func__, baudRate);
-
-        if (baudRate <= 115200) {
-                *divisor = 115200 / baudRate;
-                *clk_sel_val = 0x0;
-        }
-        if ((baudRate > 115200) && (baudRate <= 230400)) {
-                *divisor = 230400 / baudRate;
-                *clk_sel_val = 0x10;
-        } else if ((baudRate > 230400) && (baudRate <= 403200)) {
-                *divisor = 403200 / baudRate;
-                *clk_sel_val = 0x20;
-        } else if ((baudRate > 403200) && (baudRate <= 460800)) {
-                *divisor = 460800 / baudRate;
-                *clk_sel_val = 0x30;
-        } else if ((baudRate > 460800) && (baudRate <= 806400)) {
-                *divisor = 806400 / baudRate;
-                *clk_sel_val = 0x40;
-        } else if ((baudRate > 806400) && (baudRate <= 921600)) {
-                *divisor = 921600 / baudRate;
-                *clk_sel_val = 0x50;
-        } else if ((baudRate > 921600) && (baudRate <= 1572864)) {
-                *divisor = 1572864 / baudRate;
-                *clk_sel_val = 0x60;
-        } else if ((baudRate > 1572864) && (baudRate <= 3145728)) {
-                *divisor = 3145728 / baudRate;
-                *clk_sel_val = 0x70;
-        }
-        return 0;
-}
-
-static int ATEN2011_send_cmd_write_baud_rate(struct ATENINTL_port
-                                             *ATEN2011_port, int baudRate)
-{
-        int divisor = 0;
-        int status;
-        __u16 Data;
-        unsigned char number;
-        __u16 clk_sel_val;
-        struct usb_serial_port *port;
-        int minor;
-
-        if (ATEN2011_port == NULL)
-                return -1;
-
-        port = (struct usb_serial_port *)ATEN2011_port->port;
-
-        dbg("%s", "Entering .......... ");
-
-        minor = ATEN2011_port->port->serial->minor;
-        if (minor == SERIAL_TTY_NO_MINOR)
-                minor = 0;
-        number = ATEN2011_port->port->number - minor;
-
-        dbg("%s - port = %d, baud = %d", __func__,
-            ATEN2011_port->port->number, baudRate);
-        /* reset clk_uart_sel in spregOffset */
-        if (baudRate > 115200) {
-#ifdef HW_flow_control
-                /*
-                 * NOTE: need to see the pther register to modify
-                 * setting h/w flow control bit to 1;
-                 */
-                /* Data = ATEN2011_port->shadowMCR; */
-                Data = 0x2b;
-                ATEN2011_port->shadowMCR = Data;
-                status = set_uart_reg(port, MODEM_CONTROL_REGISTER, Data);
-                if (status < 0) {
-                        dbg("Writing spreg failed in set_serial_baud");
-                        return -1;
-                }
-#endif
-
-        } else {
-#ifdef HW_flow_control
-                /* setting h/w flow control bit to 0; */
-                /* Data = ATEN2011_port->shadowMCR; */
-                Data = 0xb;
-                ATEN2011_port->shadowMCR = Data;
-                status = set_uart_reg(port, MODEM_CONTROL_REGISTER, Data);
-                if (status < 0) {
-                        dbg("Writing spreg failed in set_serial_baud");
-                        return -1;
-                }
-#endif
-
-        }
-
-        if (1)                  /* baudRate <= 115200) */ {
-                clk_sel_val = 0x0;
-                Data = 0x0;
-                status =
-                    ATEN2011_calc_baud_rate_divisor(baudRate, &divisor,
-                                                    &clk_sel_val);
-                status = get_reg_sync(port, ATEN2011_port->SpRegOffset, &Data);
-                if (status < 0) {
-                        dbg("reading spreg failed in set_serial_baud");
-                        return -1;
-                }
-                Data = (Data & 0x8f) | clk_sel_val;
-                status = set_reg_sync(port, ATEN2011_port->SpRegOffset, Data);
-                if (status < 0) {
-                        dbg("Writing spreg failed in set_serial_baud");
-                        return -1;
-                }
-                /* Calculate the Divisor */
-
-                if (status) {
-                        err("%s - bad baud rate", __func__);
-                        dbg("%s", "bad baud rate");
-                        return status;
-                }
-                /* Enable access to divisor latch */
-                Data = ATEN2011_port->shadowLCR | SERIAL_LCR_DLAB;
-                ATEN2011_port->shadowLCR = Data;
-                set_uart_reg(port, LINE_CONTROL_REGISTER, Data);
-
-                /* Write the divisor */
-                Data = (unsigned char)(divisor & 0xff);
-                dbg("set_serial_baud Value to write DLL is %x", Data);
-                set_uart_reg(port, DIVISOR_LATCH_LSB, Data);
-
-                Data = (unsigned char)((divisor & 0xff00) >> 8);
-                dbg("set_serial_baud Value to write DLM is %x", Data);
-                set_uart_reg(port, DIVISOR_LATCH_MSB, Data);
-
-                /* Disable access to divisor latch */
-                Data = ATEN2011_port->shadowLCR & ~SERIAL_LCR_DLAB;
-                ATEN2011_port->shadowLCR = Data;
-                set_uart_reg(port, LINE_CONTROL_REGISTER, Data);
-
-        }
-
-        return status;
-}
-
-static void ATEN2011_change_port_settings(struct tty_struct *tty,
-                                          struct ATENINTL_port *ATEN2011_port,
-                                          struct ktermios *old_termios)
-{
-        int baud;
-        unsigned cflag;
-        unsigned iflag;
-        __u8 lData;
-        __u8 lParity;
-        __u8 lStop;
-        int status;
-        __u16 Data;
-        struct usb_serial_port *port;
-        struct usb_serial *serial;
-
-        if (ATEN2011_port == NULL)
-                return;
-
-        port = (struct usb_serial_port *)ATEN2011_port->port;
-
-        serial = port->serial;
-
-        dbg("%s - port %d", __func__, ATEN2011_port->port->number);
-
-        if (!ATEN2011_port->open) {
-                dbg("%s - port not opened", __func__);
-                return;
-        }
-
-        if ((!tty) || (!tty->termios)) {
-                dbg("%s - no tty structures", __func__);
-                return;
-        }
-
-        dbg("%s", "Entering .......... ");
-
-        lData = LCR_BITS_8;
-        lStop = LCR_STOP_1;
-        lParity = LCR_PAR_NONE;
-
-        cflag = tty->termios->c_cflag;
-        iflag = tty->termios->c_iflag;
-
-        /* Change the number of bits */
-
-        /* COMMENT1: the below Line"if(cflag & CSIZE)" is added for the errors we get for serial loop data test i.e serial_loopback.pl -v */
-        /* if(cflag & CSIZE) */
-        {
-                switch (cflag & CSIZE) {
-                case CS5:
-                        lData = LCR_BITS_5;
-                        break;
-
-                case CS6:
-                        lData = LCR_BITS_6;
-                        break;
-
-                case CS7:
-                        lData = LCR_BITS_7;
-                        break;
-                default:
-                case CS8:
-                        lData = LCR_BITS_8;
-                        break;
-                }
-        }
-        /* Change the Parity bit */
-        if (cflag & PARENB) {
-                if (cflag & PARODD) {
-                        lParity = LCR_PAR_ODD;
-                        dbg("%s - parity = odd", __func__);
-                } else {
-                        lParity = LCR_PAR_EVEN;
-                        dbg("%s - parity = even", __func__);
-                }
-
-        } else {
-                dbg("%s - parity = none", __func__);
-        }
-
-        if (cflag & CMSPAR)
-                lParity = lParity | 0x20;
-
-        /* Change the Stop bit */
-        if (cflag & CSTOPB) {
-                lStop = LCR_STOP_2;
-                dbg("%s - stop bits = 2", __func__);
-        } else {
-                lStop = LCR_STOP_1;
-                dbg("%s - stop bits = 1", __func__);
-        }
-
-        /* Update the LCR with the correct value */
-        ATEN2011_port->shadowLCR &=
-            ~(LCR_BITS_MASK | LCR_STOP_MASK | LCR_PAR_MASK);
-        ATEN2011_port->shadowLCR |= (lData | lParity | lStop);
-
-        dbg
-            ("ATEN2011_change_port_settings ATEN2011_port->shadowLCR is %x",
-             ATEN2011_port->shadowLCR);
-        /* Disable Interrupts */
-        Data = 0x00;
-        set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data);
-
-        Data = 0x00;
-        set_uart_reg(port, FIFO_CONTROL_REGISTER, Data);
-
-        Data = 0xcf;
-        set_uart_reg(port, FIFO_CONTROL_REGISTER, Data);
-
-        /* Send the updated LCR value to the ATEN2011 */
-        Data = ATEN2011_port->shadowLCR;
-
-        set_uart_reg(port, LINE_CONTROL_REGISTER, Data);
-
-        Data = 0x00b;
-        ATEN2011_port->shadowMCR = Data;
-        set_uart_reg(port, MODEM_CONTROL_REGISTER, Data);
-        Data = 0x00b;
-        set_uart_reg(port, MODEM_CONTROL_REGISTER, Data);
-
-        /* set up the MCR register and send it to the ATEN2011 */
-
-        ATEN2011_port->shadowMCR = MCR_MASTER_IE;
-        if (cflag & CBAUD)
-                ATEN2011_port->shadowMCR |= (MCR_DTR | MCR_RTS);
-
-        if (cflag & CRTSCTS)
-                ATEN2011_port->shadowMCR |= (MCR_XON_ANY);
-        else
-                ATEN2011_port->shadowMCR &= ~(MCR_XON_ANY);
-
-        Data = ATEN2011_port->shadowMCR;
-        set_uart_reg(port, MODEM_CONTROL_REGISTER, Data);
-
-        /* Determine divisor based on baud rate */
-        baud = tty_get_baud_rate(tty);
-
-        if (!baud) {
-                /* pick a default, any default... */
-                dbg("%s", "Picked default baud...");
-                baud = 9600;
-        }
-
-        dbg("%s - baud rate = %d", __func__, baud);
-        status = ATEN2011_send_cmd_write_baud_rate(ATEN2011_port, baud);
-
-        /* Enable Interrupts */
-        Data = 0x0c;
-        set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data);
-
-        if (ATEN2011_port->read_urb->status != -EINPROGRESS) {
-                ATEN2011_port->read_urb->dev = serial->dev;
-
-                status = usb_submit_urb(ATEN2011_port->read_urb, GFP_ATOMIC);
-
-                if (status) {
-                        dbg
-                            (" usb_submit_urb(read bulk) failed, status = %d",
-                             status);
-                }
-        }
-        dbg
-            ("ATEN2011_change_port_settings ATEN2011_port->shadowLCR is End %x",
-             ATEN2011_port->shadowLCR);
-
-        return;
-}
-
-static int ATEN2011_calc_num_ports(struct usb_serial *serial)
-{
-
-        __u16 Data = 0x00;
-        int ret = 0;
-        int ATEN2011_2or4ports;
-        ret = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
-                              ATEN_RDREQ, ATEN_RD_RTYPE, 0, GPIO_REGISTER,
-                              &Data, VENDOR_READ_LENGTH, ATEN_WDR_TIMEOUT);
-
-/* ghostgum: here is where the problem appears to bet */
-/* Which of the following are needed? */
-/* Greg used the serial->type->num_ports=2 */
-/* But the code in the ATEN2011_open relies on serial->num_ports=2 */
-        if ((Data & 0x01) == 0) {
-                ATEN2011_2or4ports = 2;
-                serial->type->num_ports = 2;
-                serial->num_ports = 2;
-        }
-        /* else if(serial->interface->cur_altsetting->desc.bNumEndpoints == 9) */
-        else {
-                ATEN2011_2or4ports = 4;
-                serial->type->num_ports = 4;
-                serial->num_ports = 4;
-
-        }
-
-        return ATEN2011_2or4ports;
-}
-
-static int ATEN2011_startup(struct usb_serial *serial)
-{
-        struct ATENINTL_serial *ATEN2011_serial;
-        struct ATENINTL_port *ATEN2011_port;
-        struct usb_device *dev;
-        int i, status;
-        int minor;
-
-        __u16 Data;
-        dbg("%s", " ATEN2011_startup :entering..........");
-
-        if (!serial) {
-                dbg("%s", "Invalid Handler");
-                return -1;
-        }
-
-        dev = serial->dev;
-
-        dbg("%s", "Entering...");
-
-        /* create our private serial structure */
-        ATEN2011_serial = kzalloc(sizeof(struct ATENINTL_serial), GFP_KERNEL);
-        if (ATEN2011_serial == NULL) {
-                err("%s - Out of memory", __func__);
-                return -ENOMEM;
-        }
-
-        /* resetting the private structure field values to zero */
-        memset(ATEN2011_serial, 0, sizeof(struct ATENINTL_serial));
-
-        ATEN2011_serial->serial = serial;
-        /* initilize status polling flag to 0 */
-        ATEN2011_serial->status_polling_started = 0;
-
-        usb_set_serial_data(serial, ATEN2011_serial);
-        ATEN2011_serial->ATEN2011_spectrum_2or4ports =
-            ATEN2011_calc_num_ports(serial);
-        /* we set up the pointers to the endpoints in the ATEN2011_open *
-         * function, as the structures aren't created yet.             */
-
-        /* set up port private structures */
-        for (i = 0; i < serial->num_ports; ++i) {
-                ATEN2011_port =
-                    kmalloc(sizeof(struct ATENINTL_port), GFP_KERNEL);
-                if (ATEN2011_port == NULL) {
-                        err("%s - Out of memory", __func__);
-                        usb_set_serial_data(serial, NULL);
-                        kfree(ATEN2011_serial);
-                        return -ENOMEM;
-                }
-                memset(ATEN2011_port, 0, sizeof(struct ATENINTL_port));
-
-                /*
-                 * Initialize all port interrupt end point to port 0
-                 * int endpoint. Our device has only one interrupt end point
-                 * comman to all port
-                 */
-                /* serial->port[i]->interrupt_in_endpointAddress = serial->port[0]->interrupt_in_endpointAddress; */
-
-                ATEN2011_port->port = serial->port[i];
-                usb_set_serial_port_data(serial->port[i], ATEN2011_port);
-
-                minor = serial->port[i]->serial->minor;
-                if (minor == SERIAL_TTY_NO_MINOR)
-                        minor = 0;
-                ATEN2011_port->port_num =
-                    ((serial->port[i]->number - minor) + 1);
-
-                if (ATEN2011_port->port_num == 1) {
-                        ATEN2011_port->SpRegOffset = 0x0;
-                        ATEN2011_port->ControlRegOffset = 0x1;
-                        ATEN2011_port->DcrRegOffset = 0x4;
-                } else if ((ATEN2011_port->port_num == 2)
-                           && (ATEN2011_serial->ATEN2011_spectrum_2or4ports ==
-                               4)) {
-                        ATEN2011_port->SpRegOffset = 0x8;
-                        ATEN2011_port->ControlRegOffset = 0x9;
-                        ATEN2011_port->DcrRegOffset = 0x16;
-                } else if ((ATEN2011_port->port_num == 2)
-                           && (ATEN2011_serial->ATEN2011_spectrum_2or4ports ==
-                               2)) {
-                        ATEN2011_port->SpRegOffset = 0xa;
-                        ATEN2011_port->ControlRegOffset = 0xb;
-                        ATEN2011_port->DcrRegOffset = 0x19;
-                } else if ((ATEN2011_port->port_num == 3)
-                           && (ATEN2011_serial->ATEN2011_spectrum_2or4ports ==
-                               4)) {
-                        ATEN2011_port->SpRegOffset = 0xa;
-                        ATEN2011_port->ControlRegOffset = 0xb;
-                        ATEN2011_port->DcrRegOffset = 0x19;
-                } else if ((ATEN2011_port->port_num == 4)
-                           && (ATEN2011_serial->ATEN2011_spectrum_2or4ports ==
-                               4)) {
-                        ATEN2011_port->SpRegOffset = 0xc;
-                        ATEN2011_port->ControlRegOffset = 0xd;
-                        ATEN2011_port->DcrRegOffset = 0x1c;
-                }
-
-                usb_set_serial_port_data(serial->port[i], ATEN2011_port);
-
-                /* enable rx_disable bit in control register */
-
-                status = get_reg_sync(serial->port[i],
-                                      ATEN2011_port->ControlRegOffset, &Data);
-                if (status < 0) {
-                        dbg("Reading ControlReg failed status-0x%x",
-                                status);
-                        break;
-                } else
-                        dbg
-                            ("ControlReg Reading success val is %x, status%d",
-                             Data, status);
-                Data |= 0x08;   /* setting driver done bit */
-                Data |= 0x04;   /* sp1_bit to have cts change reflect in modem status reg */
-
-                /* Data |= 0x20; */     /* rx_disable bit */
-                status = set_reg_sync(serial->port[i],
-                                      ATEN2011_port->ControlRegOffset, Data);
-                if (status < 0) {
-                        dbg
-                            ("Writing ControlReg failed(rx_disable) status-0x%x",
-                             status);
-                        break;
-                } else
-                        dbg
-                            ("ControlReg Writing success(rx_disable) status%d",
-                             status);
-
-                /*
-                 * Write default values in DCR (i.e 0x01 in DCR0, 0x05 in DCR2
-                 * and 0x24 in DCR3
-                 */
-                Data = 0x01;
-                status = set_reg_sync(serial->port[i],
-                                      (__u16)(ATEN2011_port->DcrRegOffset + 0),
-                                      Data);
-                if (status < 0) {
-                        dbg("Writing DCR0 failed status-0x%x", status);
-                        break;
-                } else
-                        dbg("DCR0 Writing success status%d", status);
-
-                Data = 0x05;
-                status = set_reg_sync(serial->port[i],
-                                      (__u16)(ATEN2011_port->DcrRegOffset + 1),
-                                      Data);
-                if (status < 0) {
-                        dbg("Writing DCR1 failed status-0x%x", status);
-                        break;
-                } else
-                        dbg("DCR1 Writing success status%d", status);
-
-                Data = 0x24;
-                status = set_reg_sync(serial->port[i],
-                                      (__u16)(ATEN2011_port->DcrRegOffset + 2),
-                                      Data);
-                if (status < 0) {
-                        dbg("Writing DCR2 failed status-0x%x", status);
-                        break;
-                } else
-                        dbg("DCR2 Writing success status%d", status);
-
-                /* write values in clkstart0x0 and clkmulti 0x20 */
-                Data = 0x0;
-                status = set_reg_sync(serial->port[i], CLK_START_VALUE_REGISTER,
-                                      Data);
-                if (status < 0) {
-                        dbg
-                            ("Writing CLK_START_VALUE_REGISTER failed status-0x%x",
-                             status);
-                        break;
-                } else
-                        dbg
-                            ("CLK_START_VALUE_REGISTER Writing success status%d",
-                             status);
-
-                Data = 0x20;
-                status = set_reg_sync(serial->port[i], CLK_MULTI_REGISTER,
-                                      Data);
-                if (status < 0) {
-                        dbg
-                            ("Writing CLK_MULTI_REGISTER failed status-0x%x",
-                             status);
-                        break;
-                } else
-                        dbg("CLK_MULTI_REGISTER Writing success status%d",
-                                status);
-
-                /* Zero Length flag register */
-                if ((ATEN2011_port->port_num != 1)
-                    && (ATEN2011_serial->ATEN2011_spectrum_2or4ports == 2)) {
-
-                        Data = 0xff;
-                        status = set_reg_sync(serial->port[i],
-                                              (__u16)(ZLP_REG1 + ((__u16)ATEN2011_port->port_num)),
-                                              Data);
-                        dbg("ZLIP offset%x",
-                                (__u16) (ZLP_REG1 +
-                                         ((__u16) ATEN2011_port->port_num)));
-                        if (status < 0) {
-                                dbg
-                                    ("Writing ZLP_REG%d failed status-0x%x",
-                                     i + 2, status);
-                                break;
-                        } else
-                                dbg("ZLP_REG%d Writing success status%d",
-                                        i + 2, status);
-                } else {
-                        Data = 0xff;
-                        status = set_reg_sync(serial->port[i],
-                                              (__u16)(ZLP_REG1 + ((__u16)ATEN2011_port->port_num) - 0x1),
-                                              Data);
-                        dbg("ZLIP offset%x",
-                                (__u16) (ZLP_REG1 +
-                                         ((__u16) ATEN2011_port->port_num) -
-                                         0x1));
-                        if (status < 0) {
-                                dbg
-                                    ("Writing ZLP_REG%d failed status-0x%x",
-                                     i + 1, status);
-                                break;
-                        } else
-                                dbg("ZLP_REG%d Writing success status%d",
-                                        i + 1, status);
-
-                }
-                ATEN2011_port->control_urb = usb_alloc_urb(0, GFP_ATOMIC);
-                ATEN2011_port->ctrl_buf = kmalloc(16, GFP_KERNEL);
-
-        }
-
-        /* Zero Length flag enable */
-        Data = 0x0f;
-        status = set_reg_sync(serial->port[0], ZLP_REG5, Data);
-        if (status < 0) {
-                dbg("Writing ZLP_REG5 failed status-0x%x", status);
-                return -1;
-        } else
-                dbg("ZLP_REG5 Writing success status%d", status);
-
-        /* setting configuration feature to one */
-        usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
-                        (__u8) 0x03, 0x00, 0x01, 0x00, NULL, 0x00, 5 * HZ);
-        return 0;
-}
-
-static void ATEN2011_release(struct usb_serial *serial)
-{
-        int i;
-        struct ATENINTL_port *ATEN2011_port;
-
-        /* check for the ports to be closed,close the ports and disconnect */
-
-        /* free private structure allocated for serial port  *
-         * stop reads and writes on all ports                */
-
-        for (i = 0; i < serial->num_ports; ++i) {
-                ATEN2011_port = usb_get_serial_port_data(serial->port[i]);
-                kfree(ATEN2011_port->ctrl_buf);
-                usb_kill_urb(ATEN2011_port->control_urb);
-                kfree(ATEN2011_port);
-                usb_set_serial_port_data(serial->port[i], NULL);
-        }
-
-        /* free private structure allocated for serial device */
-
-        kfree(usb_get_serial_data(serial));
-        usb_set_serial_data(serial, NULL);
-}
-
-static struct usb_serial_driver aten_serial_driver = {
-        .driver = {
-                .owner =        THIS_MODULE,
-                .name =         "aten2011",
-                },
-        .description =          DRIVER_DESC,
-        .id_table =             id_table,
-        .open =                 ATEN2011_open,
-        .close =                ATEN2011_close,
-        .write =                ATEN2011_write,
-        .write_room =           ATEN2011_write_room,
-        .chars_in_buffer =      ATEN2011_chars_in_buffer,
-        .throttle =             ATEN2011_throttle,
-        .unthrottle =           ATEN2011_unthrottle,
-        .calc_num_ports =       ATEN2011_calc_num_ports,
-
-        .ioctl =                ATEN2011_ioctl,
-        .set_termios =          ATEN2011_set_termios,
-        .break_ctl =            ATEN2011_break,
-        .tiocmget =             ATEN2011_tiocmget,
-        .tiocmset =             ATEN2011_tiocmset,
-        .attach =               ATEN2011_startup,
-        .release =              ATEN2011_release,
-        .read_bulk_callback =   ATEN2011_bulk_in_callback,
-        .read_int_callback =    ATEN2011_interrupt_callback,
-};
-
-static struct usb_driver aten_driver = {
-        .name =         "aten2011",
-        .probe =        usb_serial_probe,
-        .disconnect =   usb_serial_disconnect,
-        .id_table =     id_table,
-};
-
-static int __init aten_init(void)
-{
-        int retval;
-
-        /* Register with the usb serial */
-        retval = usb_serial_register(&aten_serial_driver);
-        if (retval)
-                return retval;
-
-        printk(KERN_INFO KBUILD_MODNAME ":"
-               DRIVER_DESC " " DRIVER_VERSION "\n");
-
-        /* Register with the usb */
-        retval = usb_register(&aten_driver);
-        if (retval)
-                usb_serial_deregister(&aten_serial_driver);
-
-        return retval;
-}
-
-static void __exit aten_exit(void)
-{
-        usb_deregister(&aten_driver);
-        usb_serial_deregister(&aten_serial_driver);
-}
-
-module_init(aten_init);
-module_exit(aten_exit);
-
-/* Module information */
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
-
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/staging/udlfb/udlfb.c b/drivers/staging/udlfb/udlfb.c
index 0ab9d15f3439..f5416af1e902 100644
--- a/drivers/staging/udlfb/udlfb.c
+++ b/drivers/staging/udlfb/udlfb.c
@@ -21,6 +21,7 @@
 #include <linux/mm.h>
 #include <linux/fb.h>
 #include <linux/mutex.h>
+#include <linux/vmalloc.h>
 
 #include "udlfb.h"
 
diff --git a/drivers/staging/usbip/usbip_common.c b/drivers/staging/usbip/usbip_common.c
index 22f93dd0ba03..251220dc8851 100644
--- a/drivers/staging/usbip/usbip_common.c
+++ b/drivers/staging/usbip/usbip_common.c
@@ -18,6 +18,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/smp_lock.h>
 #include <linux/file.h>
 #include <linux/tcp.h>
 #include <linux/in.h>
diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
index a10ed27acbc2..f43ca416e4a8 100644
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -344,7 +344,7 @@ static CHIP_INFO chip_info_table[]= {
 };
 
 static struct pci_device_id device_id_table[] __devinitdata = {
-{ 0x1106, 0x3253, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (int)&chip_info_table[0]},
+{ 0x1106, 0x3253, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long)&chip_info_table[0]},
 { 0, }
 };
 #endif
@@ -369,7 +369,7 @@ static int  device_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
 
 #ifdef CONFIG_PM
 static int device_notify_reboot(struct notifier_block *, unsigned long event, void *ptr);
-static int viawget_suspend(struct pci_dev *pcid, u32 state);
+static int viawget_suspend(struct pci_dev *pcid, pm_message_t state);
 static int viawget_resume(struct pci_dev *pcid);
 struct notifier_block device_notifier = {
         notifier_call:  device_notify_reboot,
@@ -3941,7 +3941,7 @@ device_notify_reboot(struct notifier_block *nb, unsigned long event, void *p)
         while ((pdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pdev)) != NULL) {
             if(pci_dev_driver(pdev) == &device_driver) {
                 if (pci_get_drvdata(pdev))
-                    viawget_suspend(pdev, 3);
+                    viawget_suspend(pdev, PMSG_HIBERNATE);
             }
         }
     }
@@ -3949,7 +3949,7 @@ device_notify_reboot(struct notifier_block *nb, unsigned long event, void *p)
 }
 
 static int
-viawget_suspend(struct pci_dev *pcid, u32 state)
+viawget_suspend(struct pci_dev *pcid, pm_message_t state)
 {
     int power_status;   // to silence the compiler
 
@@ -3971,7 +3971,7 @@ viawget_suspend(struct pci_dev *pcid, u32 state)
     memset(pMgmt->abyCurrBSSID, 0, 6);
     pMgmt->eCurrState = WMAC_STATE_IDLE;
     pci_disable_device(pcid);
-    power_status = pci_set_power_state(pcid, state);
+    power_status = pci_set_power_state(pcid, pci_choose_state(pcid, state));
     spin_unlock_irq(&pDevice->lock);
     return 0;
 }
diff --git a/drivers/telephony/ixj.c b/drivers/telephony/ixj.c
index a913efc69669..40de151f2789 100644
--- a/drivers/telephony/ixj.c
+++ b/drivers/telephony/ixj.c
@@ -257,6 +257,7 @@
 #include <linux/fs.h>           /* everything... */
 #include <linux/errno.h>        /* error codes */
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/mm.h>
 #include <linux/ioport.h>
 #include <linux/interrupt.h>
diff --git a/drivers/telephony/phonedev.c b/drivers/telephony/phonedev.c
index b52cc830c0b4..f3873f650bb4 100644
--- a/drivers/telephony/phonedev.c
+++ b/drivers/telephony/phonedev.c
@@ -23,7 +23,6 @@
 #include <linux/errno.h>
 #include <linux/phonedev.h>
 #include <linux/init.h>
-#include <linux/smp_lock.h>
 #include <asm/uaccess.h>
 #include <asm/system.h>
 
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 38bfdb0f6660..2bfc41ece0e1 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -462,11 +462,18 @@ urbs:
 
                 rcv->buffer = buf;
 
-                usb_fill_bulk_urb(rcv->urb, acm->dev,
-                                  acm->rx_endpoint,
-                                  buf->base,
-                                  acm->readsize,
-                                  acm_read_bulk, rcv);
+                if (acm->is_int_ep)
+                        usb_fill_int_urb(rcv->urb, acm->dev,
+                                         acm->rx_endpoint,
+                                         buf->base,
+                                         acm->readsize,
+                                         acm_read_bulk, rcv, acm->bInterval);
+                else
+                        usb_fill_bulk_urb(rcv->urb, acm->dev,
+                                          acm->rx_endpoint,
+                                          buf->base,
+                                          acm->readsize,
+                                          acm_read_bulk, rcv);
                 rcv->urb->transfer_dma = buf->dma;
                 rcv->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 
@@ -550,7 +557,7 @@ static void acm_waker(struct work_struct *waker)
 static int acm_tty_open(struct tty_struct *tty, struct file *filp)
 {
         struct acm *acm;
-        int rv = -EINVAL;
+        int rv = -ENODEV;
         int i;
         dbg("Entering acm_tty_open.");
 
@@ -677,7 +684,7 @@ static void acm_tty_close(struct tty_struct *tty, struct file *filp)
 
         /* Perform the closing process and see if we need to do the hardware
            shutdown */
-        if (tty_port_close_start(&acm->port, tty, filp) == 0)
+        if (!acm || tty_port_close_start(&acm->port, tty, filp) == 0)
                 return;
         acm_port_down(acm, 0);
         tty_port_close_end(&acm->port, tty);
@@ -740,7 +747,7 @@ static int acm_tty_chars_in_buffer(struct tty_struct *tty)
 {
         struct acm *acm = tty->driver_data;
         if (!ACM_READY(acm))
-                return -EINVAL;
+                return 0;
         /*
          * This is inaccurate (overcounts), but it works.
          */
@@ -1173,6 +1180,9 @@ made_compressed_probe:
         spin_lock_init(&acm->read_lock);
         mutex_init(&acm->mutex);
         acm->rx_endpoint = usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress);
+        acm->is_int_ep = usb_endpoint_xfer_int(epread);
+        if (acm->is_int_ep)
+                acm->bInterval = epread->bInterval;
         tty_port_init(&acm->port);
         acm->port.ops = &acm_port_ops;
 
@@ -1227,9 +1237,14 @@ made_compressed_probe:
                         goto alloc_fail7;
                 }
 
-                usb_fill_bulk_urb(snd->urb, usb_dev,
-                        usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress),
-                        NULL, acm->writesize, acm_write_bulk, snd);
+                if (usb_endpoint_xfer_int(epwrite))
+                        usb_fill_int_urb(snd->urb, usb_dev,
+                                usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress),
+                                NULL, acm->writesize, acm_write_bulk, snd, epwrite->bInterval);
+                else
+                        usb_fill_bulk_urb(snd->urb, usb_dev,
+                                usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress),
+                                NULL, acm->writesize, acm_write_bulk, snd);
                 snd->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
                 snd->instance = acm;
         }
diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
index 1602324808ba..c4a0ee8ffccf 100644
--- a/drivers/usb/class/cdc-acm.h
+++ b/drivers/usb/class/cdc-acm.h
@@ -126,6 +126,8 @@ struct acm {
         unsigned int ctrl_caps;                         /* control capabilities from the class specific header */
         unsigned int susp_count;                        /* number of suspended interfaces */
         int combined_interfaces:1;                      /* control and data collapsed */
+        int is_int_ep:1;                                /* interrupt endpoints contrary to spec used */
+        u8 bInterval;
         struct acm_wb *delayed_wb;                      /* write queued for a device about to be woken */
 };
 
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index 0fe434505ac4..ba589d4ca8bc 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -15,7 +15,6 @@
 #include <linux/errno.h>
 #include <linux/slab.h>
 #include <linux/module.h>
-#include <linux/smp_lock.h>
 #include <linux/mutex.h>
 #include <linux/uaccess.h>
 #include <linux/bitops.h>
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index 3703789d0d2a..b09a527f7341 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -751,7 +751,7 @@ static int get_capabilities(struct usbtmc_device_data *data)
 {
         struct device *dev = &data->usb_dev->dev;
         char *buffer;
-        int rv;
+        int rv = 0;
 
         buffer = kmalloc(0x18, GFP_KERNEL);
         if (!buffer)
@@ -763,7 +763,7 @@ static int get_capabilities(struct usbtmc_device_data *data)
                              0, 0, buffer, 0x18, USBTMC_TIMEOUT);
         if (rv < 0) {
                 dev_err(dev, "usb_control_msg returned %d\n", rv);
-                return rv;
+                goto err_out;
         }
 
         dev_dbg(dev, "GET_CAPABILITIES returned %x\n", buffer[0]);
@@ -773,7 +773,8 @@ static int get_capabilities(struct usbtmc_device_data *data)
         dev_dbg(dev, "USB488 device capabilities are %x\n", buffer[15]);
         if (buffer[0] != USBTMC_STATUS_SUCCESS) {
                 dev_err(dev, "GET_CAPABILITIES returned %x\n", buffer[0]);
-                return -EPERM;
+                rv = -EPERM;
+                goto err_out;
         }
 
         data->capabilities.interface_capabilities = buffer[4];
@@ -781,8 +782,9 @@ static int get_capabilities(struct usbtmc_device_data *data)
         data->capabilities.usb488_interface_capabilities = buffer[14];
         data->capabilities.usb488_device_capabilities = buffer[15];
 
+err_out:
         kfree(buffer);
-        return 0;
+        return rv;
 }
 
 #define capability_attribute(name)                                      \
diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig
index 69280c35b5cb..ad925946f869 100644
--- a/drivers/usb/core/Kconfig
+++ b/drivers/usb/core/Kconfig
@@ -28,7 +28,7 @@ comment "Miscellaneous USB options"
         depends on USB
 
 config USB_DEVICEFS
-        bool "USB device filesystem (DEPRECATED)" if EMBEDDED
+        bool "USB device filesystem (DEPRECATED)"
         depends on USB
         ---help---
           If you say Y here (and to "/proc file system support" in the "File
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index 24dfb33f90cb..a16c538d0132 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -80,38 +80,18 @@ static int usb_parse_ss_endpoint_companion(struct device *ddev, int cfgno,
         int max_tx;
         int i;
 
-        /* Allocate space for the SS endpoint companion descriptor */
-        ep->ss_ep_comp = kzalloc(sizeof(struct usb_host_ss_ep_comp),
-                        GFP_KERNEL);
-        if (!ep->ss_ep_comp)
-                return -ENOMEM;
         desc = (struct usb_ss_ep_comp_descriptor *) buffer;
         if (desc->bDescriptorType != USB_DT_SS_ENDPOINT_COMP) {
                 dev_warn(ddev, "No SuperSpeed endpoint companion for config %d "
                                 " interface %d altsetting %d ep %d: "
                                 "using minimum values\n",
                                 cfgno, inum, asnum, ep->desc.bEndpointAddress);
-                ep->ss_ep_comp->desc.bLength = USB_DT_SS_EP_COMP_SIZE;
-                ep->ss_ep_comp->desc.bDescriptorType = USB_DT_SS_ENDPOINT_COMP;
-                ep->ss_ep_comp->desc.bMaxBurst = 0;
-                /*
-                 * Leave bmAttributes as zero, which will mean no streams for
-                 * bulk, and isoc won't support multiple bursts of packets.
-                 * With bursts of only one packet, and a Mult of 1, the max
-                 * amount of data moved per endpoint service interval is one
-                 * packet.
-                 */
-                if (usb_endpoint_xfer_isoc(&ep->desc) ||
-                                usb_endpoint_xfer_int(&ep->desc))
-                        ep->ss_ep_comp->desc.wBytesPerInterval =
-                                ep->desc.wMaxPacketSize;
                 /*
                  * The next descriptor is for an Endpoint or Interface,
                  * no extra descriptors to copy into the companion structure,
                  * and we didn't eat up any of the buffer.
                  */
-                retval = 0;
-                goto valid;
+                return 0;
         }
         memcpy(&ep->ss_ep_comp->desc, desc, USB_DT_SS_EP_COMP_SIZE);
         desc = &ep->ss_ep_comp->desc;
@@ -320,6 +300,28 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
                 buffer += i;
                 size -= i;
 
+                /* Allocate space for the SS endpoint companion descriptor */
+                endpoint->ss_ep_comp = kzalloc(sizeof(struct usb_host_ss_ep_comp),
+                                GFP_KERNEL);
+                if (!endpoint->ss_ep_comp)
+                        return -ENOMEM;
+
+                /* Fill in some default values (may be overwritten later) */
+                endpoint->ss_ep_comp->desc.bLength = USB_DT_SS_EP_COMP_SIZE;
+                endpoint->ss_ep_comp->desc.bDescriptorType = USB_DT_SS_ENDPOINT_COMP;
+                endpoint->ss_ep_comp->desc.bMaxBurst = 0;
+                /*
+                 * Leave bmAttributes as zero, which will mean no streams for
+                 * bulk, and isoc won't support multiple bursts of packets.
+                 * With bursts of only one packet, and a Mult of 1, the max
+                 * amount of data moved per endpoint service interval is one
+                 * packet.
+                 */
+                if (usb_endpoint_xfer_isoc(&endpoint->desc) ||
+                                usb_endpoint_xfer_int(&endpoint->desc))
+                        endpoint->ss_ep_comp->desc.wBytesPerInterval =
+                                endpoint->desc.wMaxPacketSize;
+
                 if (size > 0) {
                         retval = usb_parse_ss_endpoint_companion(ddev, cfgno,
                                         inum, asnum, endpoint, num_ep, buffer,
@@ -329,6 +331,10 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
                                 retval = buffer - buffer0;
                         }
                 } else {
+                        dev_warn(ddev, "config %d interface %d altsetting %d "
+                                "endpoint 0x%X has no "
+                                "SuperSpeed companion descriptor\n",
+                                cfgno, inum, asnum, d->bEndpointAddress);
                         retval = buffer - buffer0;
                 }
         } else {
diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index 73c108d117b4..96f11715cd26 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -136,17 +136,19 @@ static const struct class_info clas_info[] =
         {USB_CLASS_AUDIO,               "audio"},
         {USB_CLASS_COMM,                "comm."},
         {USB_CLASS_HID,                 "HID"},
-        {USB_CLASS_HUB,                 "hub"},
         {USB_CLASS_PHYSICAL,            "PID"},
+        {USB_CLASS_STILL_IMAGE,         "still"},
         {USB_CLASS_PRINTER,             "print"},
         {USB_CLASS_MASS_STORAGE,        "stor."},
+        {USB_CLASS_HUB,                 "hub"},
         {USB_CLASS_CDC_DATA,            "data"},
-        {USB_CLASS_APP_SPEC,            "app."},
-        {USB_CLASS_VENDOR_SPEC,         "vend."},
-        {USB_CLASS_STILL_IMAGE,         "still"},
         {USB_CLASS_CSCID,               "scard"},
         {USB_CLASS_CONTENT_SEC,         "c-sec"},
         {USB_CLASS_VIDEO,               "video"},
+        {USB_CLASS_WIRELESS_CONTROLLER, "wlcon"},
+        {USB_CLASS_MISC,                "misc"},
+        {USB_CLASS_APP_SPEC,            "app."},
+        {USB_CLASS_VENDOR_SPEC,         "vend."},
         {-1,                            "unk."}         /* leave as last */
 };
 
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 308609039c73..4247eccf858c 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -325,21 +325,34 @@ static void async_completed(struct urb *urb)
         struct async *as = urb->context;
         struct dev_state *ps = as->ps;
         struct siginfo sinfo;
+        struct pid *pid = NULL;
+        uid_t uid = 0;
+        uid_t euid = 0;
+        u32 secid = 0;
+        int signr;
 
         spin_lock(&ps->lock);
         list_move_tail(&as->asynclist, &ps->async_completed);
-        spin_unlock(&ps->lock);
         as->status = urb->status;
-        if (as->signr) {
+        signr = as->signr;
+        if (signr) {
                 sinfo.si_signo = as->signr;
                 sinfo.si_errno = as->status;
                 sinfo.si_code = SI_ASYNCIO;
                 sinfo.si_addr = as->userurb;
-                kill_pid_info_as_uid(as->signr, &sinfo, as->pid, as->uid,
-                                      as->euid, as->secid);
+                pid = as->pid;
+                uid = as->uid;
+                euid = as->euid;
+                secid = as->secid;
         }
         snoop(&urb->dev->dev, "urb complete\n");
         snoop_urb(urb, as->userurb);
+        spin_unlock(&ps->lock);
+
+        if (signr)
+                kill_pid_info_as_uid(sinfo.si_signo, &sinfo, pid, uid,
+                                      euid, secid);
+
         wake_up(&ps->wait);
 }
 
@@ -582,7 +595,7 @@ static int usbdev_open(struct inode *inode, struct file *file)
         if (!ps)
                 goto out;
 
-        ret = -ENOENT;
+        ret = -ENODEV;
 
         /* usbdev device-node */
         if (imajor(inode) == USB_DEVICE_MAJOR)
@@ -982,7 +995,7 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
                                 USBDEVFS_URB_ZERO_PACKET |
                                 USBDEVFS_URB_NO_INTERRUPT))
                 return -EINVAL;
-        if (!uurb->buffer)
+        if (uurb->buffer_length > 0 && !uurb->buffer)
                 return -EINVAL;
         if (!(uurb->type == USBDEVFS_URB_TYPE_CONTROL &&
             (uurb->endpoint & ~USB_ENDPOINT_DIR_MASK) == 0)) {
@@ -1038,11 +1051,6 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
                         is_in = 0;
                         uurb->endpoint &= ~USB_DIR_IN;
                 }
-                if (!access_ok(is_in ? VERIFY_WRITE : VERIFY_READ,
-                                uurb->buffer, uurb->buffer_length)) {
-                        kfree(dr);
-                        return -EFAULT;
-                }
                 snoop(&ps->dev->dev, "control urb: bRequest=%02x "
                         "bRrequestType=%02x wValue=%04x "
                         "wIndex=%04x wLength=%04x\n",
@@ -1062,9 +1070,6 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
                 uurb->number_of_packets = 0;
                 if (uurb->buffer_length > MAX_USBFS_BUFFER_SIZE)
                         return -EINVAL;
-                if (!access_ok(is_in ? VERIFY_WRITE : VERIFY_READ,
-                                uurb->buffer, uurb->buffer_length))
-                        return -EFAULT;
                 snoop(&ps->dev->dev, "bulk urb\n");
                 break;
 
@@ -1106,28 +1111,35 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
                         return -EINVAL;
                 if (uurb->buffer_length > MAX_USBFS_BUFFER_SIZE)
                         return -EINVAL;
-                if (!access_ok(is_in ? VERIFY_WRITE : VERIFY_READ,
-                                uurb->buffer, uurb->buffer_length))
-                        return -EFAULT;
                 snoop(&ps->dev->dev, "interrupt urb\n");
                 break;
 
         default:
                 return -EINVAL;
         }
-        as = alloc_async(uurb->number_of_packets);
-        if (!as) {
+        if (uurb->buffer_length > 0 &&
+                        !access_ok(is_in ? VERIFY_WRITE : VERIFY_READ,
+                                uurb->buffer, uurb->buffer_length)) {
                 kfree(isopkt);
                 kfree(dr);
-                return -ENOMEM;
+                return -EFAULT;
         }
-        as->urb->transfer_buffer = kmalloc(uurb->buffer_length, GFP_KERNEL);
-        if (!as->urb->transfer_buffer) {
+        as = alloc_async(uurb->number_of_packets);
+        if (!as) {
                 kfree(isopkt);
                 kfree(dr);
-                free_async(as);
                 return -ENOMEM;
         }
+        if (uurb->buffer_length > 0) {
+                as->urb->transfer_buffer = kmalloc(uurb->buffer_length,
+                                GFP_KERNEL);
+                if (!as->urb->transfer_buffer) {
+                        kfree(isopkt);
+                        kfree(dr);
+                        free_async(as);
+                        return -ENOMEM;
+                }
+        }
         as->urb->dev = ps->dev;
         as->urb->pipe = (uurb->type << 30) |
                         __create_pipe(ps->dev, uurb->endpoint & 0xf) |
@@ -1169,7 +1181,7 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
         kfree(isopkt);
         as->ps = ps;
         as->userurb = arg;
-        if (uurb->endpoint & USB_DIR_IN)
+        if (is_in && uurb->buffer_length > 0)
                 as->userbuffer = uurb->buffer;
         else
                 as->userbuffer = NULL;
@@ -1179,9 +1191,9 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
         as->uid = cred->uid;
         as->euid = cred->euid;
         security_task_getsecid(current, &as->secid);
-        if (!is_in) {
+        if (!is_in && uurb->buffer_length > 0) {
                 if (copy_from_user(as->urb->transfer_buffer, uurb->buffer,
-                                as->urb->transfer_buffer_length)) {
+                                uurb->buffer_length)) {
                         free_async(as);
                         return -EFAULT;
                 }
@@ -1231,22 +1243,22 @@ static int processcompl(struct async *as, void __user * __user *arg)
         if (as->userbuffer)
                 if (copy_to_user(as->userbuffer, urb->transfer_buffer,
                                  urb->transfer_buffer_length))
-                        return -EFAULT;
+                        goto err_out;
         if (put_user(as->status, &userurb->status))
-                return -EFAULT;
+                goto err_out;
         if (put_user(urb->actual_length, &userurb->actual_length))
-                return -EFAULT;
+                goto err_out;
         if (put_user(urb->error_count, &userurb->error_count))
-                return -EFAULT;
+                goto err_out;
 
         if (usb_endpoint_xfer_isoc(&urb->ep->desc)) {
                 for (i = 0; i < urb->number_of_packets; i++) {
                         if (put_user(urb->iso_frame_desc[i].actual_length,
                                      &userurb->iso_frame_desc[i].actual_length))
-                                return -EFAULT;
+                                goto err_out;
                         if (put_user(urb->iso_frame_desc[i].status,
                                      &userurb->iso_frame_desc[i].status))
-                                return -EFAULT;
+                                goto err_out;
                 }
         }
 
@@ -1255,6 +1267,10 @@ static int processcompl(struct async *as, void __user * __user *arg)
         if (put_user(addr, (void __user * __user *)arg))
                 return -EFAULT;
         return 0;
+
+err_out:
+        free_async(as);
+        return -EFAULT;
 }
 
 static struct async *reap_as(struct dev_state *ps)
@@ -1305,7 +1321,8 @@ static int get_urb32(struct usbdevfs_urb *kurb,
                      struct usbdevfs_urb32 __user *uurb)
 {
         __u32  uptr;
-        if (get_user(kurb->type, &uurb->type) ||
+        if (!access_ok(VERIFY_READ, uurb, sizeof(*uurb)) ||
+            __get_user(kurb->type, &uurb->type) ||
             __get_user(kurb->endpoint, &uurb->endpoint) ||
             __get_user(kurb->status, &uurb->status) ||
             __get_user(kurb->flags, &uurb->flags) ||
@@ -1520,8 +1537,9 @@ static int proc_ioctl_compat(struct dev_state *ps, compat_uptr_t arg)
         u32 udata;
 
         uioc = compat_ptr((long)arg);
-        if (get_user(ctrl.ifno, &uioc->ifno) ||
-            get_user(ctrl.ioctl_code, &uioc->ioctl_code) ||
+        if (!access_ok(VERIFY_READ, uioc, sizeof(*uioc)) ||
+            __get_user(ctrl.ifno, &uioc->ifno) ||
+            __get_user(ctrl.ioctl_code, &uioc->ioctl_code) ||
             __get_user(udata, &uioc->data))
                 return -EFAULT;
         ctrl.data = compat_ptr(udata);
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index ce3f453f02ef..95ccfa0b9fc5 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -648,7 +648,7 @@ void usb_hcd_poll_rh_status(struct usb_hcd *hcd)
         struct urb      *urb;
         int             length;
         unsigned long   flags;
-        char            buffer[4];      /* Any root hubs with > 31 ports? */
+        char            buffer[6];      /* Any root hubs with > 31 ports? */
 
         if (unlikely(!hcd->rh_registered))
                 return;
diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h
index d397ecfd5b17..ec5c67ea07b7 100644
--- a/drivers/usb/core/hcd.h
+++ b/drivers/usb/core/hcd.h
@@ -227,6 +227,10 @@ struct hc_driver {
                 /* has a port been handed over to a companion? */
         int     (*port_handed_over)(struct usb_hcd *, int);
 
+                /* CLEAR_TT_BUFFER completion callback */
+        void    (*clear_tt_buffer_complete)(struct usb_hcd *,
+                                struct usb_host_endpoint *);
+
         /* xHCI specific functions */
                 /* Called by usb_alloc_dev to alloc HC device structures */
         int     (*alloc_dev)(struct usb_hcd *, struct usb_device *);
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 2af3b4f06054..71f86c60d83c 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -450,10 +450,10 @@ hub_clear_tt_buffer (struct usb_device *hdev, u16 devinfo, u16 tt)
  * talking to TTs must queue control transfers (not just bulk and iso), so
  * both can talk to the same hub concurrently.
  */
-static void hub_tt_kevent (struct work_struct *work)
+static void hub_tt_work(struct work_struct *work)
 {
         struct usb_hub          *hub =
-                container_of(work, struct usb_hub, tt.kevent);
+                container_of(work, struct usb_hub, tt.clear_work);
         unsigned long           flags;
         int                     limit = 100;
 
@@ -462,6 +462,7 @@ static void hub_tt_kevent (struct work_struct *work)
                 struct list_head        *next;
                 struct usb_tt_clear     *clear;
                 struct usb_device       *hdev = hub->hdev;
+                const struct hc_driver  *drv;
                 int                     status;
 
                 next = hub->tt.clear_list.next;
@@ -471,21 +472,25 @@ static void hub_tt_kevent (struct work_struct *work)
                 /* drop lock so HCD can concurrently report other TT errors */
                 spin_unlock_irqrestore (&hub->tt.lock, flags);
                 status = hub_clear_tt_buffer (hdev, clear->devinfo, clear->tt);
-                spin_lock_irqsave (&hub->tt.lock, flags);
-
                 if (status)
                         dev_err (&hdev->dev,
                                 "clear tt %d (%04x) error %d\n",
                                 clear->tt, clear->devinfo, status);
+
+                /* Tell the HCD, even if the operation failed */
+                drv = clear->hcd->driver;
+                if (drv->clear_tt_buffer_complete)
+                        (drv->clear_tt_buffer_complete)(clear->hcd, clear->ep);
+
                 kfree(clear);
+                spin_lock_irqsave(&hub->tt.lock, flags);
         }
         spin_unlock_irqrestore (&hub->tt.lock, flags);
 }
 
 /**
- * usb_hub_tt_clear_buffer - clear control/bulk TT state in high speed hub
- * @udev: the device whose split transaction failed
- * @pipe: identifies the endpoint of the failed transaction
+ * usb_hub_clear_tt_buffer - clear control/bulk TT state in high speed hub
+ * @urb: an URB associated with the failed or incomplete split transaction
  *
  * High speed HCDs use this to tell the hub driver that some split control or
  * bulk transaction failed in a way that requires clearing internal state of
@@ -495,8 +500,10 @@ static void hub_tt_kevent (struct work_struct *work)
  * It may not be possible for that hub to handle additional full (or low)
  * speed transactions until that state is fully cleared out.
  */
-void usb_hub_tt_clear_buffer (struct usb_device *udev, int pipe)
+int usb_hub_clear_tt_buffer(struct urb *urb)
 {
+        struct usb_device       *udev = urb->dev;
+        int                     pipe = urb->pipe;
         struct usb_tt           *tt = udev->tt;
         unsigned long           flags;
         struct usb_tt_clear     *clear;
@@ -508,7 +515,7 @@ void usb_hub_tt_clear_buffer (struct usb_device *udev, int pipe)
         if ((clear = kmalloc (sizeof *clear, GFP_ATOMIC)) == NULL) {
                 dev_err (&udev->dev, "can't save CLEAR_TT_BUFFER state\n");
                 /* FIXME recover somehow ... RESET_TT? */
-                return;
+                return -ENOMEM;
         }
 
         /* info that CLEAR_TT_BUFFER needs */
@@ -520,14 +527,19 @@ void usb_hub_tt_clear_buffer (struct usb_device *udev, int pipe)
                         : (USB_ENDPOINT_XFER_BULK << 11);
         if (usb_pipein (pipe))
                 clear->devinfo |= 1 << 15;
-        
+
+        /* info for completion callback */
+        clear->hcd = bus_to_hcd(udev->bus);
+        clear->ep = urb->ep;
+
         /* tell keventd to clear state for this TT */
         spin_lock_irqsave (&tt->lock, flags);
         list_add_tail (&clear->clear_list, &tt->clear_list);
-        schedule_work (&tt->kevent);
+        schedule_work(&tt->clear_work);
         spin_unlock_irqrestore (&tt->lock, flags);
+        return 0;
 }
-EXPORT_SYMBOL_GPL(usb_hub_tt_clear_buffer);
+EXPORT_SYMBOL_GPL(usb_hub_clear_tt_buffer);
 
 /* If do_delay is false, return the number of milliseconds the caller
  * needs to delay.
@@ -818,7 +830,7 @@ static void hub_quiesce(struct usb_hub *hub, enum hub_quiescing_type type)
         if (hub->has_indicators)
                 cancel_delayed_work_sync(&hub->leds);
         if (hub->tt.hub)
-                cancel_work_sync(&hub->tt.kevent);
+                cancel_work_sync(&hub->tt.clear_work);
 }
 
 /* caller has locked the hub device */
@@ -935,7 +947,7 @@ static int hub_configure(struct usb_hub *hub,
 
         spin_lock_init (&hub->tt.lock);
         INIT_LIST_HEAD (&hub->tt.clear_list);
-        INIT_WORK (&hub->tt.kevent, hub_tt_kevent);
+        INIT_WORK(&hub->tt.clear_work, hub_tt_work);
         switch (hdev->descriptor.bDeviceProtocol) {
                 case 0:
                         break;
diff --git a/drivers/usb/core/hub.h b/drivers/usb/core/hub.h
index 889c0f32a40b..de8081f065ed 100644
--- a/drivers/usb/core/hub.h
+++ b/drivers/usb/core/hub.h
@@ -188,16 +188,18 @@ struct usb_tt {
         /* for control/bulk error recovery (CLEAR_TT_BUFFER) */
         spinlock_t              lock;
         struct list_head        clear_list;     /* of usb_tt_clear */
-        struct work_struct                      kevent;
+        struct work_struct      clear_work;
 };
 
 struct usb_tt_clear {
         struct list_head        clear_list;
         unsigned                tt;
         u16                     devinfo;
+        struct usb_hcd          *hcd;
+        struct usb_host_endpoint        *ep;
 };
 
-extern void usb_hub_tt_clear_buffer(struct usb_device *dev, int pipe);
+extern int usb_hub_clear_tt_buffer(struct urb *urb);
 extern void usb_ep0_reinit(struct usb_device *);
 
 #endif /* __LINUX_HUB_H */
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 2bed83caacb1..9720e699f472 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -806,6 +806,48 @@ static int usb_string_sub(struct usb_device *dev, unsigned int langid,
         return rc;
 }
 
+static int usb_get_langid(struct usb_device *dev, unsigned char *tbuf)
+{
+        int err;
+
+        if (dev->have_langid)
+                return 0;
+
+        if (dev->string_langid < 0)
+                return -EPIPE;
+
+        err = usb_string_sub(dev, 0, 0, tbuf);
+
+        /* If the string was reported but is malformed, default to english
+         * (0x0409) */
+        if (err == -ENODATA || (err > 0 && err < 4)) {
+                dev->string_langid = 0x0409;
+                dev->have_langid = 1;
+                dev_err(&dev->dev,
+                        "string descriptor 0 malformed (err = %d), "
+                        "defaulting to 0x%04x\n",
+                                err, dev->string_langid);
+                return 0;
+        }
+
+        /* In case of all other errors, we assume the device is not able to
+         * deal with strings at all. Set string_langid to -1 in order to
+         * prevent any string to be retrieved from the device */
+        if (err < 0) {
+                dev_err(&dev->dev, "string descriptor 0 read error: %d\n",
+                                        err);
+                dev->string_langid = -1;
+                return -EPIPE;
+        }
+
+        /* always use the first langid listed */
+        dev->string_langid = tbuf[2] | (tbuf[3] << 8);
+        dev->have_langid = 1;
+        dev_dbg(&dev->dev, "default language 0x%04x\n",
+                                dev->string_langid);
+        return 0;
+}
+
 /**
  * usb_string - returns UTF-8 version of a string descriptor
  * @dev: the device whose string descriptor is being retrieved
@@ -837,24 +879,9 @@ int usb_string(struct usb_device *dev, int index, char *buf, size_t size)
         if (!tbuf)
                 return -ENOMEM;
 
-        /* get langid for strings if it's not yet known */
-        if (!dev->have_langid) {
-                err = usb_string_sub(dev, 0, 0, tbuf);
-                if (err < 0) {
-                        dev_err(&dev->dev,
-                                "string descriptor 0 read error: %d\n",
-                                err);
-                } else if (err < 4) {
-                        dev_err(&dev->dev, "string descriptor 0 too short\n");
-                } else {
-                        dev->string_langid = tbuf[2] | (tbuf[3] << 8);
-                        /* always use the first langid listed */
-                        dev_dbg(&dev->dev, "default language 0x%04x\n",
-                                dev->string_langid);
-                }
-
-                dev->have_langid = 1;
-        }
+        err = usb_get_langid(dev, tbuf);
+        if (err < 0)
+                goto errout;
 
         err = usb_string_sub(dev, dev->string_langid, index, tbuf);
         if (err < 0)
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 5d1ddf485d1e..7f8e83a954ac 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -286,6 +286,27 @@ config USB_S3C_HSOTG
         default USB_GADGET
         select USB_GADGET_SELECTED
 
+config USB_GADGET_IMX
+        boolean "Freescale IMX USB Peripheral Controller"
+        depends on ARCH_MX1
+        help
+           Freescale's IMX series include an integrated full speed
+           USB 1.1 device controller.  The controller in the IMX series
+           is register-compatible.
+
+           It has Six fixed-function endpoints, as well as endpoint
+           zero (for control transfers).
+
+           Say "y" to link the driver statically, or "m" to build a
+           dynamically linked module called "imx_udc" and force all
+           gadget drivers to also be dynamically linked.
+
+config USB_IMX
+        tristate
+        depends on USB_GADGET_IMX
+        default USB_GADGET
+        select USB_GADGET_SELECTED
+
 config USB_GADGET_S3C2410
         boolean "S3C2410 USB Device Controller"
         depends on ARCH_S3C2410
@@ -321,27 +342,6 @@ config USB_GADGET_MUSB_HDRC
           This OTG-capable silicon IP is used in dual designs including
           the TI DaVinci, OMAP 243x, OMAP 343x, TUSB 6010, and ADI Blackfin
 
-config USB_GADGET_IMX
-        boolean "Freescale IMX USB Peripheral Controller"
-        depends on ARCH_MX1
-        help
-           Freescale's IMX series include an integrated full speed
-           USB 1.1 device controller.  The controller in the IMX series
-           is register-compatible.
-
-           It has Six fixed-function endpoints, as well as endpoint
-           zero (for control transfers).
-
-           Say "y" to link the driver statically, or "m" to build a
-           dynamically linked module called "imx_udc" and force all
-           gadget drivers to also be dynamically linked.
-
-config USB_IMX
-        tristate
-        depends on USB_GADGET_IMX
-        default USB_GADGET
-        select USB_GADGET_SELECTED
-
 config USB_GADGET_M66592
         boolean "Renesas M66592 USB Peripheral Controller"
         select USB_GADGET_DUALSPEED
@@ -604,6 +604,7 @@ config USB_ZERO_HNPTEST
 config USB_AUDIO
         tristate "Audio Gadget (EXPERIMENTAL)"
         depends on SND
+        select SND_PCM
         help
           Gadget Audio is compatible with USB Audio Class specification 1.0.
           It will include at least one AudioControl interface, zero or more
diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c
index 826f3adde5d8..77352ccc245e 100644
--- a/drivers/usb/gadget/amd5536udc.c
+++ b/drivers/usb/gadget/amd5536udc.c
@@ -48,7 +48,6 @@
 #include <linux/ioport.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/timer.h>
diff --git a/drivers/usb/gadget/audio.c b/drivers/usb/gadget/audio.c
index 94de7e864614..9f80f4e970bd 100644
--- a/drivers/usb/gadget/audio.c
+++ b/drivers/usb/gadget/audio.c
@@ -42,9 +42,9 @@
  * Instead:  allocate your own, using normal USB-IF procedures.
  */
 
-/* Thanks to NetChip Technologies for donating this product ID. */
-#define AUDIO_VENDOR_NUM                0x0525  /* NetChip */
-#define AUDIO_PRODUCT_NUM               0xa4a1  /* Linux-USB Audio Gadget */
+/* Thanks to Linux Foundation for donating this product ID. */
+#define AUDIO_VENDOR_NUM                0x1d6b  /* Linux Foundation */
+#define AUDIO_PRODUCT_NUM               0x0101  /* Linux-USB Audio Gadget */
 
 /*-------------------------------------------------------------------------*/
 
diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c
index d006dc652e02..bd102f5052ba 100644
--- a/drivers/usb/gadget/ether.c
+++ b/drivers/usb/gadget/ether.c
@@ -293,15 +293,16 @@ static int __init eth_bind(struct usb_composite_dev *cdev)
                 /* CDC Subset */
                 eth_config_driver.label = "CDC Subset/SAFE";
 
-                device_desc.idVendor = cpu_to_le16(SIMPLE_VENDOR_NUM),
-                device_desc.idProduct = cpu_to_le16(SIMPLE_PRODUCT_NUM),
-                device_desc.bDeviceClass = USB_CLASS_VENDOR_SPEC;
+                device_desc.idVendor = cpu_to_le16(SIMPLE_VENDOR_NUM);
+                device_desc.idProduct = cpu_to_le16(SIMPLE_PRODUCT_NUM);
+                if (!has_rndis())
+                        device_desc.bDeviceClass = USB_CLASS_VENDOR_SPEC;
         }
 
         if (has_rndis()) {
                 /* RNDIS plus ECM-or-Subset */
-                device_desc.idVendor = cpu_to_le16(RNDIS_VENDOR_NUM),
-                device_desc.idProduct = cpu_to_le16(RNDIS_PRODUCT_NUM),
+                device_desc.idVendor = cpu_to_le16(RNDIS_VENDOR_NUM);
+                device_desc.idProduct = cpu_to_le16(RNDIS_PRODUCT_NUM);
                 device_desc.bNumConfigurations = 2;
         }
 
diff --git a/drivers/usb/gadget/langwell_udc.c b/drivers/usb/gadget/langwell_udc.c
index 6829d5961359..a3913519fd58 100644
--- a/drivers/usb/gadget/langwell_udc.c
+++ b/drivers/usb/gadget/langwell_udc.c
@@ -34,7 +34,6 @@
 #include <linux/ioport.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/timer.h>
diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c
index 0ce4e2819847..ed21e263f832 100644
--- a/drivers/usb/gadget/pxa25x_udc.c
+++ b/drivers/usb/gadget/pxa25x_udc.c
@@ -139,7 +139,7 @@ static int is_vbus_present(void)
 {
         struct pxa2xx_udc_mach_info             *mach = the_controller->mach;
 
-        if (mach->gpio_vbus) {
+        if (gpio_is_valid(mach->gpio_vbus)) {
                 int value = gpio_get_value(mach->gpio_vbus);
 
                 if (mach->gpio_vbus_inverted)
@@ -158,7 +158,7 @@ static void pullup_off(void)
         struct pxa2xx_udc_mach_info             *mach = the_controller->mach;
         int off_level = mach->gpio_pullup_inverted;
 
-        if (mach->gpio_pullup)
+        if (gpio_is_valid(mach->gpio_pullup))
                 gpio_set_value(mach->gpio_pullup, off_level);
         else if (mach->udc_command)
                 mach->udc_command(PXA2XX_UDC_CMD_DISCONNECT);
@@ -169,7 +169,7 @@ static void pullup_on(void)
         struct pxa2xx_udc_mach_info             *mach = the_controller->mach;
         int on_level = !mach->gpio_pullup_inverted;
 
-        if (mach->gpio_pullup)
+        if (gpio_is_valid(mach->gpio_pullup))
                 gpio_set_value(mach->gpio_pullup, on_level);
         else if (mach->udc_command)
                 mach->udc_command(PXA2XX_UDC_CMD_CONNECT);
@@ -1000,7 +1000,7 @@ static int pxa25x_udc_pullup(struct usb_gadget *_gadget, int is_active)
         udc = container_of(_gadget, struct pxa25x_udc, gadget);
 
         /* not all boards support pullup control */
-        if (!udc->mach->gpio_pullup && !udc->mach->udc_command)
+        if (!gpio_is_valid(udc->mach->gpio_pullup) && !udc->mach->udc_command)
                 return -EOPNOTSUPP;
 
         udc->pullup = (is_active != 0);
@@ -1802,11 +1802,13 @@ pxa25x_udc_irq(int irq, void *_dev)
                                         USIR0 |= tmp;
                                         handled = 1;
                                 }
+#ifndef CONFIG_USB_PXA25X_SMALL
                                 if (usir1 & tmp) {
                                         handle_ep(&dev->ep[i+8]);
                                         USIR1 |= tmp;
                                         handled = 1;
                                 }
+#endif
                         }
                 }
 
@@ -2160,7 +2162,7 @@ static int __init pxa25x_udc_probe(struct platform_device *pdev)
         dev->dev = &pdev->dev;
         dev->mach = pdev->dev.platform_data;
 
-        if (dev->mach->gpio_vbus) {
+        if (gpio_is_valid(dev->mach->gpio_vbus)) {
                 if ((retval = gpio_request(dev->mach->gpio_vbus,
                                 "pxa25x_udc GPIO VBUS"))) {
                         dev_dbg(&pdev->dev,
@@ -2173,7 +2175,7 @@ static int __init pxa25x_udc_probe(struct platform_device *pdev)
         } else
                 vbus_irq = 0;
 
-        if (dev->mach->gpio_pullup) {
+        if (gpio_is_valid(dev->mach->gpio_pullup)) {
                 if ((retval = gpio_request(dev->mach->gpio_pullup,
                                 "pca25x_udc GPIO PULLUP"))) {
                         dev_dbg(&pdev->dev,
@@ -2256,10 +2258,10 @@ lubbock_fail0:
 #endif
         free_irq(irq, dev);
  err_irq1:
-        if (dev->mach->gpio_pullup)
+        if (gpio_is_valid(dev->mach->gpio_pullup))
                 gpio_free(dev->mach->gpio_pullup);
  err_gpio_pullup:
-        if (dev->mach->gpio_vbus)
+        if (gpio_is_valid(dev->mach->gpio_vbus))
                 gpio_free(dev->mach->gpio_vbus);
  err_gpio_vbus:
         clk_put(dev->clk);
@@ -2294,11 +2296,11 @@ static int __exit pxa25x_udc_remove(struct platform_device *pdev)
                 free_irq(LUBBOCK_USB_IRQ, dev);
         }
 #endif
-        if (dev->mach->gpio_vbus) {
+        if (gpio_is_valid(dev->mach->gpio_vbus)) {
                 free_irq(gpio_to_irq(dev->mach->gpio_vbus), dev);
                 gpio_free(dev->mach->gpio_vbus);
         }
-        if (dev->mach->gpio_pullup)
+        if (gpio_is_valid(dev->mach->gpio_pullup))
                 gpio_free(dev->mach->gpio_pullup);
 
         clk_put(dev->clk);
@@ -2329,7 +2331,7 @@ static int pxa25x_udc_suspend(struct platform_device *dev, pm_message_t state)
         struct pxa25x_udc       *udc = platform_get_drvdata(dev);
         unsigned long flags;
 
-        if (!udc->mach->gpio_pullup && !udc->mach->udc_command)
+        if (!gpio_is_valid(udc->mach->gpio_pullup) && !udc->mach->udc_command)
                 WARNING("USB host won't detect disconnect!\n");
         udc->suspended = 1;
 
diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c
index 2b4660e08c4d..ca41b0b5afb3 100644
--- a/drivers/usb/gadget/rndis.c
+++ b/drivers/usb/gadget/rndis.c
@@ -442,6 +442,8 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len,
 
         case OID_802_3_MAC_OPTIONS:
                 pr_debug("%s: OID_802_3_MAC_OPTIONS\n", __func__);
+                *outbuf = cpu_to_le32(0);
+                retval = 0;
                 break;
 
         /* ieee802.3 statistics OIDs (table 4-4) */
diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c
index 9a2b8920532d..a9b452fe6221 100644
--- a/drivers/usb/gadget/s3c2410_udc.c
+++ b/drivers/usb/gadget/s3c2410_udc.c
@@ -28,7 +28,6 @@
 #include <linux/ioport.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/timer.h>
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 1576a0520adf..1a920c70b5a1 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -181,26 +181,27 @@ config USB_OHCI_HCD_PPC_SOC
           Enables support for the USB controller on the MPC52xx or
           STB03xxx processor chip.  If unsure, say Y.
 
-config USB_OHCI_HCD_PPC_OF
-        bool "OHCI support for PPC USB controller on OF platform bus"
-        depends on USB_OHCI_HCD && PPC_OF
-        default y
-        ---help---
-          Enables support for the USB controller PowerPC present on the
-          OpenFirmware platform bus.
-
 config USB_OHCI_HCD_PPC_OF_BE
-        bool "Support big endian HC"
-        depends on USB_OHCI_HCD_PPC_OF
-        default y
+        bool "OHCI support for OF platform bus (big endian)"
+        depends on USB_OHCI_HCD && PPC_OF
         select USB_OHCI_BIG_ENDIAN_DESC
         select USB_OHCI_BIG_ENDIAN_MMIO
+        ---help---
+          Enables support for big-endian USB controllers present on the
+          OpenFirmware platform bus.
 
 config USB_OHCI_HCD_PPC_OF_LE
-        bool "Support little endian HC"
-        depends on USB_OHCI_HCD_PPC_OF
-        default n
+        bool "OHCI support for OF platform bus (little endian)"
+        depends on USB_OHCI_HCD && PPC_OF
         select USB_OHCI_LITTLE_ENDIAN
+        ---help---
+          Enables support for little-endian USB controllers present on the
+          OpenFirmware platform bus.
+
+config USB_OHCI_HCD_PPC_OF
+        bool
+        depends on USB_OHCI_HCD && PPC_OF
+        default USB_OHCI_HCD_PPC_OF_BE || USB_OHCI_HCD_PPC_OF_LE
 
 config USB_OHCI_HCD_PCI
         bool "OHCI support for PCI-bus USB controllers"
@@ -337,10 +338,10 @@ config USB_R8A66597_HCD
 
 config SUPERH_ON_CHIP_R8A66597
         boolean "Enable SuperH on-chip R8A66597 USB"
-        depends on USB_R8A66597_HCD && (CPU_SUBTYPE_SH7366 || CPU_SUBTYPE_SH7723)
+        depends on USB_R8A66597_HCD && (CPU_SUBTYPE_SH7366 || CPU_SUBTYPE_SH7723 || CPU_SUBTYPE_SH7724)
         help
            This driver enables support for the on-chip R8A66597 in the
-           SH7366 and SH7723 processors.
+           SH7366, SH7723 and SH7724 processors.
 
 config USB_WHCI_HCD
         tristate "Wireless USB Host Controller Interface (WHCI) driver (EXPERIMENTAL)"
diff --git a/drivers/usb/host/ehci-au1xxx.c b/drivers/usb/host/ehci-au1xxx.c
index c3a778bd359c..59d208d94d4e 100644
--- a/drivers/usb/host/ehci-au1xxx.c
+++ b/drivers/usb/host/ehci-au1xxx.c
@@ -113,6 +113,8 @@ static const struct hc_driver ehci_au1xxx_hc_driver = {
         .bus_resume             = ehci_bus_resume,
         .relinquish_port        = ehci_relinquish_port,
         .port_handed_over       = ehci_port_handed_over,
+
+        .clear_tt_buffer_complete       = ehci_clear_tt_buffer_complete,
 };
 
 static int ehci_hcd_au1xxx_drv_probe(struct platform_device *pdev)
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index bf86809c5120..991174937db3 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -325,6 +325,8 @@ static const struct hc_driver ehci_fsl_hc_driver = {
         .bus_resume = ehci_bus_resume,
         .relinquish_port = ehci_relinquish_port,
         .port_handed_over = ehci_port_handed_over,
+
+        .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
 };
 
 static int ehci_fsl_drv_probe(struct platform_device *pdev)
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 2b72473544d3..11c627ce6022 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -903,7 +903,8 @@ static int ehci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
                         /* already started */
                         break;
                 case QH_STATE_IDLE:
-                        WARN_ON(1);
+                        /* QH might be waiting for a Clear-TT-Buffer */
+                        qh_completions(ehci, qh);
                         break;
                 }
                 break;
@@ -1003,6 +1004,8 @@ idle_timeout:
                 schedule_timeout_uninterruptible(1);
                 goto rescan;
         case QH_STATE_IDLE:             /* fully unlinked */
+                if (qh->clearing_tt)
+                        goto idle_timeout;
                 if (list_empty (&qh->qtd_list)) {
                         qh_put (qh);
                         break;
@@ -1030,12 +1033,14 @@ ehci_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep)
         struct ehci_hcd         *ehci = hcd_to_ehci(hcd);
         struct ehci_qh          *qh;
         int                     eptype = usb_endpoint_type(&ep->desc);
+        int                     epnum = usb_endpoint_num(&ep->desc);
+        int                     is_out = usb_endpoint_dir_out(&ep->desc);
+        unsigned long           flags;
 
         if (eptype != USB_ENDPOINT_XFER_BULK && eptype != USB_ENDPOINT_XFER_INT)
                 return;
 
- rescan:
-        spin_lock_irq(&ehci->lock);
+        spin_lock_irqsave(&ehci->lock, flags);
         qh = ep->hcpriv;
 
         /* For Bulk and Interrupt endpoints we maintain the toggle state
@@ -1044,29 +1049,24 @@ ehci_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep)
          * the toggle bit in the QH.
          */
         if (qh) {
+                usb_settoggle(qh->dev, epnum, is_out, 0);
                 if (!list_empty(&qh->qtd_list)) {
                         WARN_ONCE(1, "clear_halt for a busy endpoint\n");
-                } else if (qh->qh_state == QH_STATE_IDLE) {
-                        qh->hw_token &= ~cpu_to_hc32(ehci, QTD_TOGGLE);
-                } else {
-                        /* It's not safe to write into the overlay area
-                         * while the QH is active.  Unlink it first and
-                         * wait for the unlink to complete.
+                } else if (qh->qh_state == QH_STATE_LINKED) {
+
+                        /* The toggle value in the QH can't be updated
+                         * while the QH is active.  Unlink it now;
+                         * re-linking will call qh_refresh().
                          */
-                        if (qh->qh_state == QH_STATE_LINKED) {
-                                if (eptype == USB_ENDPOINT_XFER_BULK) {
-                                        unlink_async(ehci, qh);
-                                } else {
-                                        intr_deschedule(ehci, qh);
-                                        (void) qh_schedule(ehci, qh);
-                                }
+                        if (eptype == USB_ENDPOINT_XFER_BULK) {
+                                unlink_async(ehci, qh);
+                        } else {
+                                intr_deschedule(ehci, qh);
+                                (void) qh_schedule(ehci, qh);
                         }
-                        spin_unlock_irq(&ehci->lock);
-                        schedule_timeout_uninterruptible(1);
-                        goto rescan;
                 }
         }
-        spin_unlock_irq(&ehci->lock);
+        spin_unlock_irqrestore(&ehci->lock, flags);
 }
 
 static int ehci_get_frame (struct usb_hcd *hcd)
diff --git a/drivers/usb/host/ehci-ixp4xx.c b/drivers/usb/host/ehci-ixp4xx.c
index a44bb4a94954..89b7c70c6ed6 100644
--- a/drivers/usb/host/ehci-ixp4xx.c
+++ b/drivers/usb/host/ehci-ixp4xx.c
@@ -61,6 +61,8 @@ static const struct hc_driver ixp4xx_ehci_hc_driver = {
 #endif
         .relinquish_port        = ehci_relinquish_port,
         .port_handed_over       = ehci_port_handed_over,
+
+        .clear_tt_buffer_complete       = ehci_clear_tt_buffer_complete,
 };
 
 static int ixp4xx_ehci_probe(struct platform_device *pdev)
diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c
index 770dd9aba62a..1d283e1b2b8d 100644
--- a/drivers/usb/host/ehci-orion.c
+++ b/drivers/usb/host/ehci-orion.c
@@ -105,6 +105,7 @@ static int ehci_orion_setup(struct usb_hcd *hcd)
         struct ehci_hcd *ehci = hcd_to_ehci(hcd);
         int retval;
 
+        ehci_reset(ehci);
         retval = ehci_halt(ehci);
         if (retval)
                 return retval;
@@ -118,7 +119,6 @@ static int ehci_orion_setup(struct usb_hcd *hcd)
 
         hcd->has_tt = 1;
 
-        ehci_reset(ehci);
         ehci_port_power(ehci, 0);
 
         return retval;
@@ -165,6 +165,8 @@ static const struct hc_driver ehci_orion_hc_driver = {
         .bus_resume = ehci_bus_resume,
         .relinquish_port = ehci_relinquish_port,
         .port_handed_over = ehci_port_handed_over,
+
+        .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
 };
 
 static void __init
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index f3683e1da161..c2f1b7df918c 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -404,6 +404,8 @@ static const struct hc_driver ehci_pci_hc_driver = {
         .bus_resume =           ehci_bus_resume,
         .relinquish_port =      ehci_relinquish_port,
         .port_handed_over =     ehci_port_handed_over,
+
+        .clear_tt_buffer_complete       = ehci_clear_tt_buffer_complete,
 };
 
 /*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/host/ehci-ppc-of.c b/drivers/usb/host/ehci-ppc-of.c
index fbd272288fc2..36f96da129f5 100644
--- a/drivers/usb/host/ehci-ppc-of.c
+++ b/drivers/usb/host/ehci-ppc-of.c
@@ -79,6 +79,8 @@ static const struct hc_driver ehci_ppc_of_hc_driver = {
 #endif
         .relinquish_port        = ehci_relinquish_port,
         .port_handed_over       = ehci_port_handed_over,
+
+        .clear_tt_buffer_complete       = ehci_clear_tt_buffer_complete,
 };
 
 
diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c
index 93f7035d00a1..1dee33b9139e 100644
--- a/drivers/usb/host/ehci-ps3.c
+++ b/drivers/usb/host/ehci-ps3.c
@@ -75,6 +75,8 @@ static const struct hc_driver ps3_ehci_hc_driver = {
 #endif
         .relinquish_port        = ehci_relinquish_port,
         .port_handed_over       = ehci_port_handed_over,
+
+        .clear_tt_buffer_complete       = ehci_clear_tt_buffer_complete,
 };
 
 static int __devinit ps3_ehci_probe(struct ps3_system_bus_device *dev)
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index 3192f683f807..7673554fa64d 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -93,6 +93,22 @@ qh_update (struct ehci_hcd *ehci, struct ehci_qh *qh, struct ehci_qtd *qtd)
         qh->hw_qtd_next = QTD_NEXT(ehci, qtd->qtd_dma);
         qh->hw_alt_next = EHCI_LIST_END(ehci);
 
+        /* Except for control endpoints, we make hardware maintain data
+         * toggle (like OHCI) ... here (re)initialize the toggle in the QH,
+         * and set the pseudo-toggle in udev. Only usb_clear_halt() will
+         * ever clear it.
+         */
+        if (!(qh->hw_info1 & cpu_to_hc32(ehci, 1 << 14))) {
+                unsigned        is_out, epnum;
+
+                is_out = !(qtd->hw_token & cpu_to_hc32(ehci, 1 << 8));
+                epnum = (hc32_to_cpup(ehci, &qh->hw_info1) >> 8) & 0x0f;
+                if (unlikely (!usb_gettoggle (qh->dev, epnum, is_out))) {
+                        qh->hw_token &= ~cpu_to_hc32(ehci, QTD_TOGGLE);
+                        usb_settoggle (qh->dev, epnum, is_out, 1);
+                }
+        }
+
         /* HC must see latest qtd and qh data before we clear ACTIVE+HALT */
         wmb ();
         qh->hw_token &= cpu_to_hc32(ehci, QTD_TOGGLE | QTD_STS_PING);
@@ -123,6 +139,55 @@ qh_refresh (struct ehci_hcd *ehci, struct ehci_qh *qh)
 
 /*-------------------------------------------------------------------------*/
 
+static void qh_link_async(struct ehci_hcd *ehci, struct ehci_qh *qh);
+
+static void ehci_clear_tt_buffer_complete(struct usb_hcd *hcd,
+                struct usb_host_endpoint *ep)
+{
+        struct ehci_hcd         *ehci = hcd_to_ehci(hcd);
+        struct ehci_qh          *qh = ep->hcpriv;
+        unsigned long           flags;
+
+        spin_lock_irqsave(&ehci->lock, flags);
+        qh->clearing_tt = 0;
+        if (qh->qh_state == QH_STATE_IDLE && !list_empty(&qh->qtd_list)
+                        && HC_IS_RUNNING(hcd->state))
+                qh_link_async(ehci, qh);
+        spin_unlock_irqrestore(&ehci->lock, flags);
+}
+
+static void ehci_clear_tt_buffer(struct ehci_hcd *ehci, struct ehci_qh *qh,
+                struct urb *urb, u32 token)
+{
+
+        /* If an async split transaction gets an error or is unlinked,
+         * the TT buffer may be left in an indeterminate state.  We
+         * have to clear the TT buffer.
+         *
+         * Note: this routine is never called for Isochronous transfers.
+         */
+        if (urb->dev->tt && !usb_pipeint(urb->pipe) && !qh->clearing_tt) {
+#ifdef DEBUG
+                struct usb_device *tt = urb->dev->tt->hub;
+                dev_dbg(&tt->dev,
+                        "clear tt buffer port %d, a%d ep%d t%08x\n",
+                        urb->dev->ttport, urb->dev->devnum,
+                        usb_pipeendpoint(urb->pipe), token);
+#endif /* DEBUG */
+                if (!ehci_is_TDI(ehci)
+                                || urb->dev->tt->hub !=
+                                   ehci_to_hcd(ehci)->self.root_hub) {
+                        if (usb_hub_clear_tt_buffer(urb) == 0)
+                                qh->clearing_tt = 1;
+                } else {
+
+                        /* REVISIT ARC-derived cores don't clear the root
+                         * hub TT buffer in this way...
+                         */
+                }
+        }
+}
+
 static int qtd_copy_status (
         struct ehci_hcd *ehci,
         struct urb *urb,
@@ -149,6 +214,14 @@ static int qtd_copy_status (
                 if (token & QTD_STS_BABBLE) {
                         /* FIXME "must" disable babbling device's port too */
                         status = -EOVERFLOW;
+                /* CERR nonzero + halt --> stall */
+                } else if (QTD_CERR(token)) {
+                        status = -EPIPE;
+
+                /* In theory, more than one of the following bits can be set
+                 * since they are sticky and the transaction is retried.
+                 * Which to test first is rather arbitrary.
+                 */
                 } else if (token & QTD_STS_MMF) {
                         /* fs/ls interrupt xfer missed the complete-split */
                         status = -EPROTO;
@@ -157,21 +230,15 @@ static int qtd_copy_status (
                                 ? -ENOSR  /* hc couldn't read data */
                                 : -ECOMM; /* hc couldn't write data */
                 } else if (token & QTD_STS_XACT) {
-                        /* timeout, bad crc, wrong PID, etc; retried */
-                        if (QTD_CERR (token))
-                                status = -EPIPE;
-                        else {
-                                ehci_dbg (ehci, "devpath %s ep%d%s 3strikes\n",
-                                        urb->dev->devpath,
-                                        usb_pipeendpoint (urb->pipe),
-                                        usb_pipein (urb->pipe) ? "in" : "out");
-                                status = -EPROTO;
-                        }
-                /* CERR nonzero + no errors + halt --> stall */
-                } else if (QTD_CERR (token))
-                        status = -EPIPE;
-                else    /* unknown */
+                        /* timeout, bad CRC, wrong PID, etc */
+                        ehci_dbg(ehci, "devpath %s ep%d%s 3strikes\n",
+                                urb->dev->devpath,
+                                usb_pipeendpoint(urb->pipe),
+                                usb_pipein(urb->pipe) ? "in" : "out");
                         status = -EPROTO;
+                } else {        /* unknown */
+                        status = -EPROTO;
+                }
 
                 ehci_vdbg (ehci,
                         "dev%d ep%d%s qtd token %08x --> status %d\n",
@@ -179,28 +246,6 @@ static int qtd_copy_status (
                         usb_pipeendpoint (urb->pipe),
                         usb_pipein (urb->pipe) ? "in" : "out",
                         token, status);
-
-                /* if async CSPLIT failed, try cleaning out the TT buffer */
-                if (status != -EPIPE
-                                && urb->dev->tt
-                                && !usb_pipeint(urb->pipe)
-                                && ((token & QTD_STS_MMF) != 0
-                                        || QTD_CERR(token) == 0)
-                                && (!ehci_is_TDI(ehci)
-                                        || urb->dev->tt->hub !=
-                                           ehci_to_hcd(ehci)->self.root_hub)) {
-#ifdef DEBUG
-                        struct usb_device *tt = urb->dev->tt->hub;
-                        dev_dbg (&tt->dev,
-                                "clear tt buffer port %d, a%d ep%d t%08x\n",
-                                urb->dev->ttport, urb->dev->devnum,
-                                usb_pipeendpoint (urb->pipe), token);
-#endif /* DEBUG */
-                        /* REVISIT ARC-derived cores don't clear the root
-                         * hub TT buffer in this way...
-                         */
-                        usb_hub_tt_clear_buffer (urb->dev, urb->pipe);
-                }
         }
 
         return status;
@@ -330,12 +375,11 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh)
                                  */
                                 if ((token & QTD_STS_XACT) &&
                                                 QTD_CERR(token) == 0 &&
-                                                --qh->xacterrs > 0 &&
+                                                ++qh->xacterrs < QH_XACTERR_MAX &&
                                                 !urb->unlinked) {
                                         ehci_dbg(ehci,
         "detected XactErr len %zu/%zu retry %d\n",
-        qtd->length - QTD_LENGTH(token), qtd->length,
-        QH_XACTERR_MAX - qh->xacterrs);
+        qtd->length - QTD_LENGTH(token), qtd->length, qh->xacterrs);
 
                                         /* reset the token in the qtd and the
                                          * qh overlay (which still contains
@@ -391,9 +435,16 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh)
                         /* qh unlinked; token in overlay may be most current */
                         if (state == QH_STATE_IDLE
                                         && cpu_to_hc32(ehci, qtd->qtd_dma)
-                                                == qh->hw_current)
+                                                == qh->hw_current) {
                                 token = hc32_to_cpu(ehci, qh->hw_token);
 
+                                /* An unlink may leave an incomplete
+                                 * async transaction in the TT buffer.
+                                 * We have to clear it.
+                                 */
+                                ehci_clear_tt_buffer(ehci, qh, urb, token);
+                        }
+
                         /* force halt for unlinked or blocked qh, so we'll
                          * patch the qh later and so that completions can't
                          * activate it while we "know" it's stopped.
@@ -419,6 +470,13 @@ halt:
                                         && (qtd->hw_alt_next
                                                 & EHCI_LIST_END(ehci)))
                                 last_status = -EINPROGRESS;
+
+                        /* As part of low/full-speed endpoint-halt processing
+                         * we must clear the TT buffer (11.17.5).
+                         */
+                        if (unlikely(last_status != -EINPROGRESS &&
+                                        last_status != -EREMOTEIO))
+                                ehci_clear_tt_buffer(ehci, qh, urb, token);
                 }
 
                 /* if we're removing something not at the queue head,
@@ -435,7 +493,7 @@ halt:
                 last = qtd;
 
                 /* reinit the xacterr counter for the next qtd */
-                qh->xacterrs = QH_XACTERR_MAX;
+                qh->xacterrs = 0;
         }
 
         /* last urb's completion might still need calling */
@@ -834,6 +892,7 @@ done:
         qh->qh_state = QH_STATE_IDLE;
         qh->hw_info1 = cpu_to_hc32(ehci, info1);
         qh->hw_info2 = cpu_to_hc32(ehci, info2);
+        usb_settoggle (urb->dev, usb_pipeendpoint (urb->pipe), !is_input, 1);
         qh_refresh (ehci, qh);
         return qh;
 }
@@ -847,6 +906,10 @@ static void qh_link_async (struct ehci_hcd *ehci, struct ehci_qh *qh)
         __hc32          dma = QH_NEXT(ehci, qh->qh_dma);
         struct ehci_qh  *head;
 
+        /* Don't link a QH if there's a Clear-TT-Buffer pending */
+        if (unlikely(qh->clearing_tt))
+                return;
+
         /* (re)start the async schedule? */
         head = ehci->async;
         timer_action_done (ehci, TIMER_ASYNC_OFF);
@@ -864,7 +927,7 @@ static void qh_link_async (struct ehci_hcd *ehci, struct ehci_qh *qh)
                 }
         }
 
-        /* clear halt and maybe recover from silicon quirk */
+        /* clear halt and/or toggle; and maybe recover from silicon quirk */
         if (qh->qh_state == QH_STATE_IDLE)
                 qh_refresh (ehci, qh);
 
@@ -876,7 +939,8 @@ static void qh_link_async (struct ehci_hcd *ehci, struct ehci_qh *qh)
         head->qh_next.qh = qh;
         head->hw_next = dma;
 
-        qh->xacterrs = QH_XACTERR_MAX;
+        qh_get(qh);
+        qh->xacterrs = 0;
         qh->qh_state = QH_STATE_LINKED;
         /* qtd completions reported later by interrupt */
 }
@@ -1016,7 +1080,7 @@ submit_async (
          * the HC and TT handle it when the TT has a buffer ready.
          */
         if (likely (qh->qh_state == QH_STATE_IDLE))
-                qh_link_async (ehci, qh_get (qh));
+                qh_link_async(ehci, qh);
  done:
         spin_unlock_irqrestore (&ehci->lock, flags);
         if (unlikely (qh == NULL))
@@ -1051,8 +1115,6 @@ static void end_unlink_async (struct ehci_hcd *ehci)
                         && HC_IS_RUNNING (ehci_to_hcd(ehci)->state))
                 qh_link_async (ehci, qh);
         else {
-                qh_put (qh);            // refcount from async list
-
                 /* it's not free to turn the async schedule on/off; leave it
                  * active but idle for a while once it empties.
                  */
@@ -1060,6 +1122,7 @@ static void end_unlink_async (struct ehci_hcd *ehci)
                                 && ehci->async->qh_next.qh == NULL)
                         timer_action (ehci, TIMER_ASYNC_OFF);
         }
+        qh_put(qh);                     /* refcount from async list */
 
         if (next) {
                 ehci->reclaim = NULL;
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 9d1babc7ff65..edd61ee90323 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -542,6 +542,7 @@ static int qh_link_periodic (struct ehci_hcd *ehci, struct ehci_qh *qh)
                 }
         }
         qh->qh_state = QH_STATE_LINKED;
+        qh->xacterrs = 0;
         qh_get (qh);
 
         /* update per-qh bandwidth for usbfs */
@@ -1619,11 +1620,14 @@ itd_complete (
                                 desc->status = -EPROTO;
 
                         /* HC need not update length with this error */
-                        if (!(t & EHCI_ISOC_BABBLE))
-                                desc->actual_length = EHCI_ITD_LENGTH (t);
+                        if (!(t & EHCI_ISOC_BABBLE)) {
+                                desc->actual_length = EHCI_ITD_LENGTH(t);
+                                urb->actual_length += desc->actual_length;
+                        }
                 } else if (likely ((t & EHCI_ISOC_ACTIVE) == 0)) {
                         desc->status = 0;
-                        desc->actual_length = EHCI_ITD_LENGTH (t);
+                        desc->actual_length = EHCI_ITD_LENGTH(t);
+                        urb->actual_length += desc->actual_length;
                 } else {
                         /* URB was too late */
                         desc->status = -EXDEV;
@@ -2014,7 +2018,8 @@ sitd_complete (
                         desc->status = -EPROTO;
         } else {
                 desc->status = 0;
-                desc->actual_length = desc->length - SITD_LENGTH (t);
+                desc->actual_length = desc->length - SITD_LENGTH(t);
+                urb->actual_length += desc->actual_length;
         }
         stream->depth -= stream->interval << 3;
 
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index 90ad3395bb21..2bfff30f4704 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -354,7 +354,9 @@ struct ehci_qh {
         unsigned short          period;         /* polling interval */
         unsigned short          start;          /* where polling starts */
 #define NO_FRAME ((unsigned short)~0)                   /* pick new start */
+
         struct usb_device       *dev;           /* access to TT */
+        unsigned                clearing_tt:1;  /* Clear-TT-Buf in progress */
 } __attribute__ ((aligned (32)));
 
 /*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/host/fhci-sched.c b/drivers/usb/host/fhci-sched.c
index bb63b68ddb77..62a226b61670 100644
--- a/drivers/usb/host/fhci-sched.c
+++ b/drivers/usb/host/fhci-sched.c
@@ -576,9 +576,7 @@ irqreturn_t fhci_irq(struct usb_hcd *hcd)
                         out_be16(&usb->fhci->regs->usb_event,
                                  usb->saved_msk);
                 } else if (usb->port_status == FHCI_PORT_DISABLED) {
-                        if (fhci_ioports_check_bus_state(fhci) == 1 &&
-                                        usb->port_status != FHCI_PORT_LOW &&
-                                        usb->port_status != FHCI_PORT_FULL)
+                        if (fhci_ioports_check_bus_state(fhci) == 1)
                                 fhci_device_connected_interrupt(fhci);
                 }
                 usb_er &= ~USB_E_RESET_MASK;
@@ -605,9 +603,7 @@ irqreturn_t fhci_irq(struct usb_hcd *hcd)
         }
 
         if (usb_er & USB_E_IDLE_MASK) {
-                if (usb->port_status == FHCI_PORT_DISABLED &&
-                                usb->port_status != FHCI_PORT_LOW &&
-                                usb->port_status != FHCI_PORT_FULL) {
+                if (usb->port_status == FHCI_PORT_DISABLED) {
                         usb_er &= ~USB_E_RESET_MASK;
                         fhci_device_connected_interrupt(fhci);
                 } else if (usb->port_status ==
diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c
index 3fa3a1702796..d4feebfc63bd 100644
--- a/drivers/usb/host/isp1760-if.c
+++ b/drivers/usb/host/isp1760-if.c
@@ -361,7 +361,7 @@ static int __devexit isp1760_plat_remove(struct platform_device *pdev)
 
 static struct platform_driver isp1760_plat_driver = {
         .probe  = isp1760_plat_probe,
-        .remove = isp1760_plat_remove,
+        .remove = __devexit_p(isp1760_plat_remove),
         .driver = {
                 .name   = "isp1760",
         },
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index f3aaba35e912..83cbecd2a1ed 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -282,6 +282,7 @@ static int ohci_omap_init(struct usb_hcd *hcd)
 static void ohci_omap_stop(struct usb_hcd *hcd)
 {
         dev_dbg(hcd->self.controller, "stopping USB Controller\n");
+        ohci_stop(hcd);
         omap_ohci_clock_power(0);
 }
 
diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c
index 56976cc0352a..e18f74946e68 100644
--- a/drivers/usb/host/r8a66597-hcd.c
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -26,7 +26,6 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
-#include <linux/smp_lock.h>
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/timer.h>
diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c
index 2501c571f855..705e34324156 100644
--- a/drivers/usb/host/xhci-dbg.c
+++ b/drivers/usb/host/xhci-dbg.c
@@ -173,6 +173,7 @@ void xhci_print_ir_set(struct xhci_hcd *xhci, struct xhci_intr_reg *ir_set, int
 {
         void *addr;
         u32 temp;
+        u64 temp_64;
 
         addr = &ir_set->irq_pending;
         temp = xhci_readl(xhci, addr);
@@ -200,25 +201,15 @@ void xhci_print_ir_set(struct xhci_hcd *xhci, struct xhci_intr_reg *ir_set, int
                 xhci_dbg(xhci, "  WARN: %p: ir_set.rsvd = 0x%x\n",
                                 addr, (unsigned int)temp);
 
-        addr = &ir_set->erst_base[0];
-        temp = xhci_readl(xhci, addr);
-        xhci_dbg(xhci, "  %p: ir_set.erst_base[0] = 0x%x\n",
-                        addr, (unsigned int) temp);
-
-        addr = &ir_set->erst_base[1];
-        temp = xhci_readl(xhci, addr);
-        xhci_dbg(xhci, "  %p: ir_set.erst_base[1] = 0x%x\n",
-                        addr, (unsigned int) temp);
+        addr = &ir_set->erst_base;
+        temp_64 = xhci_read_64(xhci, addr);
+        xhci_dbg(xhci, "  %p: ir_set.erst_base = @%08llx\n",
+                        addr, temp_64);
 
-        addr = &ir_set->erst_dequeue[0];
-        temp = xhci_readl(xhci, addr);
-        xhci_dbg(xhci, "  %p: ir_set.erst_dequeue[0] = 0x%x\n",
-                        addr, (unsigned int) temp);
-
-        addr = &ir_set->erst_dequeue[1];
-        temp = xhci_readl(xhci, addr);
-        xhci_dbg(xhci, "  %p: ir_set.erst_dequeue[1] = 0x%x\n",
-                        addr, (unsigned int) temp);
+        addr = &ir_set->erst_dequeue;
+        temp_64 = xhci_read_64(xhci, addr);
+        xhci_dbg(xhci, "  %p: ir_set.erst_dequeue = @%08llx\n",
+                        addr, temp_64);
 }
 
 void xhci_print_run_regs(struct xhci_hcd *xhci)
@@ -268,8 +259,7 @@ void xhci_debug_trb(struct xhci_hcd *xhci, union xhci_trb *trb)
                 xhci_dbg(xhci, "Link TRB:\n");
                 xhci_print_trb_offsets(xhci, trb);
 
-                address = trb->link.segment_ptr[0] +
-                        (((u64) trb->link.segment_ptr[1]) << 32);
+                address = trb->link.segment_ptr;
                 xhci_dbg(xhci, "Next ring segment DMA address = 0x%llx\n", address);
 
                 xhci_dbg(xhci, "Interrupter target = 0x%x\n",
@@ -282,8 +272,7 @@ void xhci_debug_trb(struct xhci_hcd *xhci, union xhci_trb *trb)
                                 (unsigned int) (trb->link.control & TRB_NO_SNOOP));
                 break;
         case TRB_TYPE(TRB_TRANSFER):
-                address = trb->trans_event.buffer[0] +
-                        (((u64) trb->trans_event.buffer[1]) << 32);
+                address = trb->trans_event.buffer;
                 /*
                  * FIXME: look at flags to figure out if it's an address or if
                  * the data is directly in the buffer field.
@@ -291,8 +280,7 @@ void xhci_debug_trb(struct xhci_hcd *xhci, union xhci_trb *trb)
                 xhci_dbg(xhci, "DMA address or buffer contents= %llu\n", address);
                 break;
         case TRB_TYPE(TRB_COMPLETION):
-                address = trb->event_cmd.cmd_trb[0] +
-                        (((u64) trb->event_cmd.cmd_trb[1]) << 32);
+                address = trb->event_cmd.cmd_trb;
                 xhci_dbg(xhci, "Command TRB pointer = %llu\n", address);
                 xhci_dbg(xhci, "Completion status = %u\n",
                                 (unsigned int) GET_COMP_CODE(trb->event_cmd.status));
@@ -328,8 +316,8 @@ void xhci_debug_segment(struct xhci_hcd *xhci, struct xhci_segment *seg)
         for (i = 0; i < TRBS_PER_SEGMENT; ++i) {
                 trb = &seg->trbs[i];
                 xhci_dbg(xhci, "@%08x %08x %08x %08x %08x\n", addr,
-                                (unsigned int) trb->link.segment_ptr[0],
-                                (unsigned int) trb->link.segment_ptr[1],
+                                lower_32_bits(trb->link.segment_ptr),
+                                upper_32_bits(trb->link.segment_ptr),
                                 (unsigned int) trb->link.intr_target,
                                 (unsigned int) trb->link.control);
                 addr += sizeof(*trb);
@@ -386,8 +374,8 @@ void xhci_dbg_erst(struct xhci_hcd *xhci, struct xhci_erst *erst)
                 entry = &erst->entries[i];
                 xhci_dbg(xhci, "@%08x %08x %08x %08x %08x\n",
                                 (unsigned int) addr,
-                                (unsigned int) entry->seg_addr[0],
-                                (unsigned int) entry->seg_addr[1],
+                                lower_32_bits(entry->seg_addr),
+                                upper_32_bits(entry->seg_addr),
                                 (unsigned int) entry->seg_size,
                                 (unsigned int) entry->rsvd);
                 addr += sizeof(*entry);
@@ -396,90 +384,147 @@ void xhci_dbg_erst(struct xhci_hcd *xhci, struct xhci_erst *erst)
 
 void xhci_dbg_cmd_ptrs(struct xhci_hcd *xhci)
 {
-        u32 val;
+        u64 val;
 
-        val = xhci_readl(xhci, &xhci->op_regs->cmd_ring[0]);
-        xhci_dbg(xhci, "// xHC command ring deq ptr low bits + flags = 0x%x\n", val);
-        val = xhci_readl(xhci, &xhci->op_regs->cmd_ring[1]);
-        xhci_dbg(xhci, "// xHC command ring deq ptr high bits = 0x%x\n", val);
+        val = xhci_read_64(xhci, &xhci->op_regs->cmd_ring);
+        xhci_dbg(xhci, "// xHC command ring deq ptr low bits + flags = @%08x\n",
+                        lower_32_bits(val));
+        xhci_dbg(xhci, "// xHC command ring deq ptr high bits = @%08x\n",
+                        upper_32_bits(val));
 }
 
-void xhci_dbg_ctx(struct xhci_hcd *xhci, struct xhci_device_control *ctx, dma_addr_t dma, unsigned int last_ep)
+/* Print the last 32 bytes for 64-byte contexts */
+static void dbg_rsvd64(struct xhci_hcd *xhci, u64 *ctx, dma_addr_t dma)
+{
+        int i;
+        for (i = 0; i < 4; ++i) {
+                xhci_dbg(xhci, "@%p (virt) @%08llx "
+                         "(dma) %#08llx - rsvd64[%d]\n",
+                         &ctx[4 + i], (unsigned long long)dma,
+                         ctx[4 + i], i);
+                dma += 8;
+        }
+}
+
+void xhci_dbg_slot_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx)
 {
-        int i, j;
-        int last_ep_ctx = 31;
         /* Fields are 32 bits wide, DMA addresses are in bytes */
         int field_size = 32 / 8;
+        int i;
 
-        xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - drop flags\n",
-                        &ctx->drop_flags, (unsigned long long)dma,
-                        ctx->drop_flags);
-        dma += field_size;
-        xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - add flags\n",
-                        &ctx->add_flags, (unsigned long long)dma,
-                        ctx->add_flags);
-        dma += field_size;
-        for (i = 0; i > 6; ++i) {
-                xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - rsvd[%d]\n",
-                                &ctx->rsvd[i], (unsigned long long)dma,
-                                ctx->rsvd[i], i);
-                dma += field_size;
-        }
+        struct xhci_slot_ctx *slot_ctx = xhci_get_slot_ctx(xhci, ctx);
+        dma_addr_t dma = ctx->dma + ((unsigned long)slot_ctx - (unsigned long)ctx);
+        int csz = HCC_64BYTE_CONTEXT(xhci->hcc_params);
 
         xhci_dbg(xhci, "Slot Context:\n");
         xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - dev_info\n",
-                        &ctx->slot.dev_info,
-                        (unsigned long long)dma, ctx->slot.dev_info);
+                        &slot_ctx->dev_info,
+                        (unsigned long long)dma, slot_ctx->dev_info);
         dma += field_size;
         xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - dev_info2\n",
-                        &ctx->slot.dev_info2,
-                        (unsigned long long)dma, ctx->slot.dev_info2);
+                        &slot_ctx->dev_info2,
+                        (unsigned long long)dma, slot_ctx->dev_info2);
         dma += field_size;
         xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - tt_info\n",
-                        &ctx->slot.tt_info,
-                        (unsigned long long)dma, ctx->slot.tt_info);
+                        &slot_ctx->tt_info,
+                        (unsigned long long)dma, slot_ctx->tt_info);
         dma += field_size;
         xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - dev_state\n",
-                        &ctx->slot.dev_state,
-                        (unsigned long long)dma, ctx->slot.dev_state);
+                        &slot_ctx->dev_state,
+                        (unsigned long long)dma, slot_ctx->dev_state);
         dma += field_size;
-        for (i = 0; i > 4; ++i) {
+        for (i = 0; i < 4; ++i) {
                 xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - rsvd[%d]\n",
-                                &ctx->slot.reserved[i], (unsigned long long)dma,
-                                ctx->slot.reserved[i], i);
+                                &slot_ctx->reserved[i], (unsigned long long)dma,
+                                slot_ctx->reserved[i], i);
                 dma += field_size;
         }
 
+        if (csz)
+                dbg_rsvd64(xhci, (u64 *)slot_ctx, dma);
+}
+
+void xhci_dbg_ep_ctx(struct xhci_hcd *xhci,
+                     struct xhci_container_ctx *ctx,
+                     unsigned int last_ep)
+{
+        int i, j;
+        int last_ep_ctx = 31;
+        /* Fields are 32 bits wide, DMA addresses are in bytes */
+        int field_size = 32 / 8;
+        int csz = HCC_64BYTE_CONTEXT(xhci->hcc_params);
+
         if (last_ep < 31)
                 last_ep_ctx = last_ep + 1;
         for (i = 0; i < last_ep_ctx; ++i) {
+                struct xhci_ep_ctx *ep_ctx = xhci_get_ep_ctx(xhci, ctx, i);
+                dma_addr_t dma = ctx->dma +
+                        ((unsigned long)ep_ctx - (unsigned long)ctx);
+
                 xhci_dbg(xhci, "Endpoint %02d Context:\n", i);
                 xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - ep_info\n",
-                                &ctx->ep[i].ep_info,
-                                (unsigned long long)dma, ctx->ep[i].ep_info);
+                                &ep_ctx->ep_info,
+                                (unsigned long long)dma, ep_ctx->ep_info);
                 dma += field_size;
                 xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - ep_info2\n",
-                                &ctx->ep[i].ep_info2,
-                                (unsigned long long)dma, ctx->ep[i].ep_info2);
-                dma += field_size;
-                xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - deq[0]\n",
-                                &ctx->ep[i].deq[0],
-                                (unsigned long long)dma, ctx->ep[i].deq[0]);
-                dma += field_size;
-                xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - deq[1]\n",
-                                &ctx->ep[i].deq[1],
-                                (unsigned long long)dma, ctx->ep[i].deq[1]);
+                                &ep_ctx->ep_info2,
+                                (unsigned long long)dma, ep_ctx->ep_info2);
                 dma += field_size;
+                xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08llx - deq\n",
+                                &ep_ctx->deq,
+                                (unsigned long long)dma, ep_ctx->deq);
+                dma += 2*field_size;
                 xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - tx_info\n",
-                                &ctx->ep[i].tx_info,
-                                (unsigned long long)dma, ctx->ep[i].tx_info);
+                                &ep_ctx->tx_info,
+                                (unsigned long long)dma, ep_ctx->tx_info);
                 dma += field_size;
                 for (j = 0; j < 3; ++j) {
                         xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - rsvd[%d]\n",
-                                        &ctx->ep[i].reserved[j],
+                                        &ep_ctx->reserved[j],
                                         (unsigned long long)dma,
-                                        ctx->ep[i].reserved[j], j);
+                                        ep_ctx->reserved[j], j);
+                        dma += field_size;
+                }
+
+                if (csz)
+                        dbg_rsvd64(xhci, (u64 *)ep_ctx, dma);
+        }
+}
+
+void xhci_dbg_ctx(struct xhci_hcd *xhci,
+                  struct xhci_container_ctx *ctx,
+                  unsigned int last_ep)
+{
+        int i;
+        /* Fields are 32 bits wide, DMA addresses are in bytes */
+        int field_size = 32 / 8;
+        struct xhci_slot_ctx *slot_ctx;
+        dma_addr_t dma = ctx->dma;
+        int csz = HCC_64BYTE_CONTEXT(xhci->hcc_params);
+
+        if (ctx->type == XHCI_CTX_TYPE_INPUT) {
+                struct xhci_input_control_ctx *ctrl_ctx =
+                        xhci_get_input_control_ctx(xhci, ctx);
+                xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - drop flags\n",
+                         &ctrl_ctx->drop_flags, (unsigned long long)dma,
+                         ctrl_ctx->drop_flags);
+                dma += field_size;
+                xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - add flags\n",
+                         &ctrl_ctx->add_flags, (unsigned long long)dma,
+                         ctrl_ctx->add_flags);
+                dma += field_size;
+                for (i = 0; i < 6; ++i) {
+                        xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - rsvd2[%d]\n",
+                                 &ctrl_ctx->rsvd2[i], (unsigned long long)dma,
+                                 ctrl_ctx->rsvd2[i], i);
                         dma += field_size;
                 }
+
+                if (csz)
+                        dbg_rsvd64(xhci, (u64 *)ctrl_ctx, dma);
         }
+
+        slot_ctx = xhci_get_slot_ctx(xhci, ctx);
+        xhci_dbg_slot_ctx(xhci, ctx);
+        xhci_dbg_ep_ctx(xhci, ctx, last_ep);
 }
diff --git a/drivers/usb/host/xhci-hcd.c b/drivers/usb/host/xhci-hcd.c
index dba3e07ccd09..816c39caca1c 100644
--- a/drivers/usb/host/xhci-hcd.c
+++ b/drivers/usb/host/xhci-hcd.c
@@ -103,7 +103,10 @@ int xhci_reset(struct xhci_hcd *xhci)
         u32 state;
 
         state = xhci_readl(xhci, &xhci->op_regs->status);
-        BUG_ON((state & STS_HALT) == 0);
+        if ((state & STS_HALT) == 0) {
+                xhci_warn(xhci, "Host controller not halted, aborting reset.\n");
+                return 0;
+        }
 
         xhci_dbg(xhci, "// Reset the HC\n");
         command = xhci_readl(xhci, &xhci->op_regs->command);
@@ -226,6 +229,7 @@ int xhci_init(struct usb_hcd *hcd)
 static void xhci_work(struct xhci_hcd *xhci)
 {
         u32 temp;
+        u64 temp_64;
 
         /*
          * Clear the op reg interrupt status first,
@@ -248,9 +252,9 @@ static void xhci_work(struct xhci_hcd *xhci)
         /* FIXME this should be a delayed service routine that clears the EHB */
         xhci_handle_event(xhci);
 
-        /* Clear the event handler busy flag; the event ring should be empty. */
-        temp = xhci_readl(xhci, &xhci->ir_set->erst_dequeue[0]);
-        xhci_writel(xhci, temp & ~ERST_EHB, &xhci->ir_set->erst_dequeue[0]);
+        /* Clear the event handler busy flag (RW1C); the event ring should be empty. */
+        temp_64 = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue);
+        xhci_write_64(xhci, temp_64 | ERST_EHB, &xhci->ir_set->erst_dequeue);
         /* Flush posted writes -- FIXME is this necessary? */
         xhci_readl(xhci, &xhci->ir_set->irq_pending);
 }
@@ -266,19 +270,34 @@ irqreturn_t xhci_irq(struct usb_hcd *hcd)
 {
         struct xhci_hcd *xhci = hcd_to_xhci(hcd);
         u32 temp, temp2;
+        union xhci_trb *trb;
 
         spin_lock(&xhci->lock);
+        trb = xhci->event_ring->dequeue;
         /* Check if the xHC generated the interrupt, or the irq is shared */
         temp = xhci_readl(xhci, &xhci->op_regs->status);
         temp2 = xhci_readl(xhci, &xhci->ir_set->irq_pending);
+        if (temp == 0xffffffff && temp2 == 0xffffffff)
+                goto hw_died;
+
         if (!(temp & STS_EINT) && !ER_IRQ_PENDING(temp2)) {
                 spin_unlock(&xhci->lock);
                 return IRQ_NONE;
         }
+        xhci_dbg(xhci, "op reg status = %08x\n", temp);
+        xhci_dbg(xhci, "ir set irq_pending = %08x\n", temp2);
+        xhci_dbg(xhci, "Event ring dequeue ptr:\n");
+        xhci_dbg(xhci, "@%llx %08x %08x %08x %08x\n",
+                        (unsigned long long)xhci_trb_virt_to_dma(xhci->event_ring->deq_seg, trb),
+                        lower_32_bits(trb->link.segment_ptr),
+                        upper_32_bits(trb->link.segment_ptr),
+                        (unsigned int) trb->link.intr_target,
+                        (unsigned int) trb->link.control);
 
         if (temp & STS_FATAL) {
                 xhci_warn(xhci, "WARNING: Host System Error\n");
                 xhci_halt(xhci);
+hw_died:
                 xhci_to_hcd(xhci)->state = HC_STATE_HALT;
                 spin_unlock(&xhci->lock);
                 return -ESHUTDOWN;
@@ -295,6 +314,7 @@ void xhci_event_ring_work(unsigned long arg)
 {
         unsigned long flags;
         int temp;
+        u64 temp_64;
         struct xhci_hcd *xhci = (struct xhci_hcd *) arg;
         int i, j;
 
@@ -311,9 +331,9 @@ void xhci_event_ring_work(unsigned long arg)
         xhci_dbg(xhci, "Event ring:\n");
         xhci_debug_segment(xhci, xhci->event_ring->deq_seg);
         xhci_dbg_ring_ptrs(xhci, xhci->event_ring);
-        temp = xhci_readl(xhci, &xhci->ir_set->erst_dequeue[0]);
-        temp &= ERST_PTR_MASK;
-        xhci_dbg(xhci, "ERST deq = 0x%x\n", temp);
+        temp_64 = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue);
+        temp_64 &= ~ERST_PTR_MASK;
+        xhci_dbg(xhci, "ERST deq = 64'h%0lx\n", (long unsigned int) temp_64);
         xhci_dbg(xhci, "Command ring:\n");
         xhci_debug_segment(xhci, xhci->cmd_ring->deq_seg);
         xhci_dbg_ring_ptrs(xhci, xhci->cmd_ring);
@@ -356,6 +376,7 @@ void xhci_event_ring_work(unsigned long arg)
 int xhci_run(struct usb_hcd *hcd)
 {
         u32 temp;
+        u64 temp_64;
         struct xhci_hcd *xhci = hcd_to_xhci(hcd);
         void (*doorbell)(struct xhci_hcd *) = NULL;
 
@@ -382,6 +403,20 @@ int xhci_run(struct usb_hcd *hcd)
         add_timer(&xhci->event_ring_timer);
 #endif
 
+        xhci_dbg(xhci, "Command ring memory map follows:\n");
+        xhci_debug_ring(xhci, xhci->cmd_ring);
+        xhci_dbg_ring_ptrs(xhci, xhci->cmd_ring);
+        xhci_dbg_cmd_ptrs(xhci);
+
+        xhci_dbg(xhci, "ERST memory map follows:\n");
+        xhci_dbg_erst(xhci, &xhci->erst);
+        xhci_dbg(xhci, "Event ring:\n");
+        xhci_debug_ring(xhci, xhci->event_ring);
+        xhci_dbg_ring_ptrs(xhci, xhci->event_ring);
+        temp_64 = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue);
+        temp_64 &= ~ERST_PTR_MASK;
+        xhci_dbg(xhci, "ERST deq = 64'h%0lx\n", (long unsigned int) temp_64);
+
         xhci_dbg(xhci, "// Set the interrupt modulation register\n");
         temp = xhci_readl(xhci, &xhci->ir_set->irq_control);
         temp &= ~ER_IRQ_INTERVAL_MASK;
@@ -406,22 +441,6 @@ int xhci_run(struct usb_hcd *hcd)
         if (NUM_TEST_NOOPS > 0)
                 doorbell = xhci_setup_one_noop(xhci);
 
-        xhci_dbg(xhci, "Command ring memory map follows:\n");
-        xhci_debug_ring(xhci, xhci->cmd_ring);
-        xhci_dbg_ring_ptrs(xhci, xhci->cmd_ring);
-        xhci_dbg_cmd_ptrs(xhci);
-
-        xhci_dbg(xhci, "ERST memory map follows:\n");
-        xhci_dbg_erst(xhci, &xhci->erst);
-        xhci_dbg(xhci, "Event ring:\n");
-        xhci_debug_ring(xhci, xhci->event_ring);
-        xhci_dbg_ring_ptrs(xhci, xhci->event_ring);
-        temp = xhci_readl(xhci, &xhci->ir_set->erst_dequeue[0]);
-        temp &= ERST_PTR_MASK;
-        xhci_dbg(xhci, "ERST deq = 0x%x\n", temp);
-        temp = xhci_readl(xhci, &xhci->ir_set->erst_dequeue[1]);
-        xhci_dbg(xhci, "ERST deq upper = 0x%x\n", temp);
-
         temp = xhci_readl(xhci, &xhci->op_regs->command);
         temp |= (CMD_RUN);
         xhci_dbg(xhci, "// Turn on HC, cmd = 0x%x.\n",
@@ -601,10 +620,13 @@ int xhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags)
                 goto exit;
         }
         if (usb_endpoint_xfer_control(&urb->ep->desc))
-                ret = xhci_queue_ctrl_tx(xhci, mem_flags, urb,
+                /* We have a spinlock and interrupts disabled, so we must pass
+                 * atomic context to this function, which may allocate memory.
+                 */
+                ret = xhci_queue_ctrl_tx(xhci, GFP_ATOMIC, urb,
                                 slot_id, ep_index);
         else if (usb_endpoint_xfer_bulk(&urb->ep->desc))
-                ret = xhci_queue_bulk_tx(xhci, mem_flags, urb,
+                ret = xhci_queue_bulk_tx(xhci, GFP_ATOMIC, urb,
                                 slot_id, ep_index);
         else
                 ret = -EINVAL;
@@ -661,8 +683,12 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
                 goto done;
 
         xhci_dbg(xhci, "Cancel URB %p\n", urb);
+        xhci_dbg(xhci, "Event ring:\n");
+        xhci_debug_ring(xhci, xhci->event_ring);
         ep_index = xhci_get_endpoint_index(&urb->ep->desc);
         ep_ring = xhci->devs[urb->dev->slot_id]->ep_rings[ep_index];
+        xhci_dbg(xhci, "Endpoint ring:\n");
+        xhci_debug_ring(xhci, ep_ring);
         td = (struct xhci_td *) urb->hcpriv;
 
         ep_ring->cancels_pending++;
@@ -696,7 +722,9 @@ int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
                 struct usb_host_endpoint *ep)
 {
         struct xhci_hcd *xhci;
-        struct xhci_device_control *in_ctx;
+        struct xhci_container_ctx *in_ctx, *out_ctx;
+        struct xhci_input_control_ctx *ctrl_ctx;
+        struct xhci_slot_ctx *slot_ctx;
         unsigned int last_ctx;
         unsigned int ep_index;
         struct xhci_ep_ctx *ep_ctx;
@@ -724,31 +752,34 @@ int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
         }
 
         in_ctx = xhci->devs[udev->slot_id]->in_ctx;
+        out_ctx = xhci->devs[udev->slot_id]->out_ctx;
+        ctrl_ctx = xhci_get_input_control_ctx(xhci, in_ctx);
         ep_index = xhci_get_endpoint_index(&ep->desc);
-        ep_ctx = &xhci->devs[udev->slot_id]->out_ctx->ep[ep_index];
+        ep_ctx = xhci_get_ep_ctx(xhci, out_ctx, ep_index);
         /* If the HC already knows the endpoint is disabled,
          * or the HCD has noted it is disabled, ignore this request
          */
         if ((ep_ctx->ep_info & EP_STATE_MASK) == EP_STATE_DISABLED ||
-                        in_ctx->drop_flags & xhci_get_endpoint_flag(&ep->desc)) {
+                        ctrl_ctx->drop_flags & xhci_get_endpoint_flag(&ep->desc)) {
                 xhci_warn(xhci, "xHCI %s called with disabled ep %p\n",
                                 __func__, ep);
                 return 0;
         }
 
-        in_ctx->drop_flags |= drop_flag;
-        new_drop_flags = in_ctx->drop_flags;
+        ctrl_ctx->drop_flags |= drop_flag;
+        new_drop_flags = ctrl_ctx->drop_flags;
 
-        in_ctx->add_flags = ~drop_flag;
-        new_add_flags = in_ctx->add_flags;
+        ctrl_ctx->add_flags = ~drop_flag;
+        new_add_flags = ctrl_ctx->add_flags;
 
-        last_ctx = xhci_last_valid_endpoint(in_ctx->add_flags);
+        last_ctx = xhci_last_valid_endpoint(ctrl_ctx->add_flags);
+        slot_ctx = xhci_get_slot_ctx(xhci, in_ctx);
         /* Update the last valid endpoint context, if we deleted the last one */
-        if ((in_ctx->slot.dev_info & LAST_CTX_MASK) > LAST_CTX(last_ctx)) {
-                in_ctx->slot.dev_info &= ~LAST_CTX_MASK;
-                in_ctx->slot.dev_info |= LAST_CTX(last_ctx);
+        if ((slot_ctx->dev_info & LAST_CTX_MASK) > LAST_CTX(last_ctx)) {
+                slot_ctx->dev_info &= ~LAST_CTX_MASK;
+                slot_ctx->dev_info |= LAST_CTX(last_ctx);
         }
-        new_slot_info = in_ctx->slot.dev_info;
+        new_slot_info = slot_ctx->dev_info;
 
         xhci_endpoint_zero(xhci, xhci->devs[udev->slot_id], ep);
 
@@ -778,17 +809,22 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
                 struct usb_host_endpoint *ep)
 {
         struct xhci_hcd *xhci;
-        struct xhci_device_control *in_ctx;
+        struct xhci_container_ctx *in_ctx, *out_ctx;
         unsigned int ep_index;
         struct xhci_ep_ctx *ep_ctx;
+        struct xhci_slot_ctx *slot_ctx;
+        struct xhci_input_control_ctx *ctrl_ctx;
         u32 added_ctxs;
         unsigned int last_ctx;
         u32 new_add_flags, new_drop_flags, new_slot_info;
         int ret = 0;
 
         ret = xhci_check_args(hcd, udev, ep, 1, __func__);
-        if (ret <= 0)
+        if (ret <= 0) {
+                /* So we won't queue a reset ep command for a root hub */
+                ep->hcpriv = NULL;
                 return ret;
+        }
         xhci = hcd_to_xhci(hcd);
 
         added_ctxs = xhci_get_endpoint_flag(&ep->desc);
@@ -810,12 +846,14 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
         }
 
         in_ctx = xhci->devs[udev->slot_id]->in_ctx;
+        out_ctx = xhci->devs[udev->slot_id]->out_ctx;
+        ctrl_ctx = xhci_get_input_control_ctx(xhci, in_ctx);
         ep_index = xhci_get_endpoint_index(&ep->desc);
-        ep_ctx = &xhci->devs[udev->slot_id]->out_ctx->ep[ep_index];
+        ep_ctx = xhci_get_ep_ctx(xhci, out_ctx, ep_index);
         /* If the HCD has already noted the endpoint is enabled,
          * ignore this request.
          */
-        if (in_ctx->add_flags & xhci_get_endpoint_flag(&ep->desc)) {
+        if (ctrl_ctx->add_flags & xhci_get_endpoint_flag(&ep->desc)) {
                 xhci_warn(xhci, "xHCI %s called with enabled ep %p\n",
                                 __func__, ep);
                 return 0;
@@ -833,8 +871,8 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
                 return -ENOMEM;
         }
 
-        in_ctx->add_flags |= added_ctxs;
-        new_add_flags = in_ctx->add_flags;
+        ctrl_ctx->add_flags |= added_ctxs;
+        new_add_flags = ctrl_ctx->add_flags;
 
         /* If xhci_endpoint_disable() was called for this endpoint, but the
          * xHC hasn't been notified yet through the check_bandwidth() call,
@@ -842,14 +880,18 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
          * descriptors.  We must drop and re-add this endpoint, so we leave the
          * drop flags alone.
          */
-        new_drop_flags = in_ctx->drop_flags;
+        new_drop_flags = ctrl_ctx->drop_flags;
 
+        slot_ctx = xhci_get_slot_ctx(xhci, in_ctx);
         /* Update the last valid endpoint context, if we just added one past */
-        if ((in_ctx->slot.dev_info & LAST_CTX_MASK) < LAST_CTX(last_ctx)) {
-                in_ctx->slot.dev_info &= ~LAST_CTX_MASK;
-                in_ctx->slot.dev_info |= LAST_CTX(last_ctx);
+        if ((slot_ctx->dev_info & LAST_CTX_MASK) < LAST_CTX(last_ctx)) {
+                slot_ctx->dev_info &= ~LAST_CTX_MASK;
+                slot_ctx->dev_info |= LAST_CTX(last_ctx);
         }
-        new_slot_info = in_ctx->slot.dev_info;
+        new_slot_info = slot_ctx->dev_info;
+
+        /* Store the usb_device pointer for later use */
+        ep->hcpriv = udev;
 
         xhci_dbg(xhci, "add ep 0x%x, slot id %d, new drop flags = %#x, new add flags = %#x, new slot info = %#x\n",
                         (unsigned int) ep->desc.bEndpointAddress,
@@ -860,9 +902,11 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
         return 0;
 }
 
-static void xhci_zero_in_ctx(struct xhci_virt_device *virt_dev)
+static void xhci_zero_in_ctx(struct xhci_hcd *xhci, struct xhci_virt_device *virt_dev)
 {
+        struct xhci_input_control_ctx *ctrl_ctx;
         struct xhci_ep_ctx *ep_ctx;
+        struct xhci_slot_ctx *slot_ctx;
         int i;
 
         /* When a device's add flag and drop flag are zero, any subsequent
@@ -870,17 +914,18 @@ static void xhci_zero_in_ctx(struct xhci_virt_device *virt_dev)
          * untouched.  Make sure we don't leave any old state in the input
          * endpoint contexts.
          */
-        virt_dev->in_ctx->drop_flags = 0;
-        virt_dev->in_ctx->add_flags = 0;
-        virt_dev->in_ctx->slot.dev_info &= ~LAST_CTX_MASK;
+        ctrl_ctx = xhci_get_input_control_ctx(xhci, virt_dev->in_ctx);
+        ctrl_ctx->drop_flags = 0;
+        ctrl_ctx->add_flags = 0;
+        slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->in_ctx);
+        slot_ctx->dev_info &= ~LAST_CTX_MASK;
         /* Endpoint 0 is always valid */
-        virt_dev->in_ctx->slot.dev_info |= LAST_CTX(1);
+        slot_ctx->dev_info |= LAST_CTX(1);
         for (i = 1; i < 31; ++i) {
-                ep_ctx = &virt_dev->in_ctx->ep[i];
+                ep_ctx = xhci_get_ep_ctx(xhci, virt_dev->in_ctx, i);
                 ep_ctx->ep_info = 0;
                 ep_ctx->ep_info2 = 0;
-                ep_ctx->deq[0] = 0;
-                ep_ctx->deq[1] = 0;
+                ep_ctx->deq = 0;
                 ep_ctx->tx_info = 0;
         }
 }
@@ -903,6 +948,8 @@ int xhci_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev)
         unsigned long flags;
         struct xhci_hcd *xhci;
         struct xhci_virt_device *virt_dev;
+        struct xhci_input_control_ctx *ctrl_ctx;
+        struct xhci_slot_ctx *slot_ctx;
 
         ret = xhci_check_args(hcd, udev, NULL, 0, __func__);
         if (ret <= 0)
@@ -918,16 +965,18 @@ int xhci_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev)
         virt_dev = xhci->devs[udev->slot_id];
 
         /* See section 4.6.6 - A0 = 1; A1 = D0 = D1 = 0 */
-        virt_dev->in_ctx->add_flags |= SLOT_FLAG;
-        virt_dev->in_ctx->add_flags &= ~EP0_FLAG;
-        virt_dev->in_ctx->drop_flags &= ~SLOT_FLAG;
-        virt_dev->in_ctx->drop_flags &= ~EP0_FLAG;
+        ctrl_ctx = xhci_get_input_control_ctx(xhci, virt_dev->in_ctx);
+        ctrl_ctx->add_flags |= SLOT_FLAG;
+        ctrl_ctx->add_flags &= ~EP0_FLAG;
+        ctrl_ctx->drop_flags &= ~SLOT_FLAG;
+        ctrl_ctx->drop_flags &= ~EP0_FLAG;
         xhci_dbg(xhci, "New Input Control Context:\n");
-        xhci_dbg_ctx(xhci, virt_dev->in_ctx, virt_dev->in_ctx_dma,
-                        LAST_CTX_TO_EP_NUM(virt_dev->in_ctx->slot.dev_info));
+        slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->in_ctx);
+        xhci_dbg_ctx(xhci, virt_dev->in_ctx,
+                        LAST_CTX_TO_EP_NUM(slot_ctx->dev_info));
 
         spin_lock_irqsave(&xhci->lock, flags);
-        ret = xhci_queue_configure_endpoint(xhci, virt_dev->in_ctx_dma,
+        ret = xhci_queue_configure_endpoint(xhci, virt_dev->in_ctx->dma,
                         udev->slot_id);
         if (ret < 0) {
                 spin_unlock_irqrestore(&xhci->lock, flags);
@@ -982,10 +1031,10 @@ int xhci_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev)
         }
 
         xhci_dbg(xhci, "Output context after successful config ep cmd:\n");
-        xhci_dbg_ctx(xhci, virt_dev->out_ctx, virt_dev->out_ctx_dma,
-                        LAST_CTX_TO_EP_NUM(virt_dev->in_ctx->slot.dev_info));
+        xhci_dbg_ctx(xhci, virt_dev->out_ctx,
+                        LAST_CTX_TO_EP_NUM(slot_ctx->dev_info));
 
-        xhci_zero_in_ctx(virt_dev);
+        xhci_zero_in_ctx(xhci, virt_dev);
         /* Free any old rings */
         for (i = 1; i < 31; ++i) {
                 if (virt_dev->new_ep_rings[i]) {
@@ -1023,7 +1072,67 @@ void xhci_reset_bandwidth(struct usb_hcd *hcd, struct usb_device *udev)
                         virt_dev->new_ep_rings[i] = NULL;
                 }
         }
-        xhci_zero_in_ctx(virt_dev);
+        xhci_zero_in_ctx(xhci, virt_dev);
+}
+
+/* Deal with stalled endpoints.  The core should have sent the control message
+ * to clear the halt condition.  However, we need to make the xHCI hardware
+ * reset its sequence number, since a device will expect a sequence number of
+ * zero after the halt condition is cleared.
+ * Context: in_interrupt
+ */
+void xhci_endpoint_reset(struct usb_hcd *hcd,
+                struct usb_host_endpoint *ep)
+{
+        struct xhci_hcd *xhci;
+        struct usb_device *udev;
+        unsigned int ep_index;
+        unsigned long flags;
+        int ret;
+        struct xhci_dequeue_state deq_state;
+        struct xhci_ring *ep_ring;
+
+        xhci = hcd_to_xhci(hcd);
+        udev = (struct usb_device *) ep->hcpriv;
+        /* Called with a root hub endpoint (or an endpoint that wasn't added
+         * with xhci_add_endpoint()
+         */
+        if (!ep->hcpriv)
+                return;
+        ep_index = xhci_get_endpoint_index(&ep->desc);
+        ep_ring = xhci->devs[udev->slot_id]->ep_rings[ep_index];
+        if (!ep_ring->stopped_td) {
+                xhci_dbg(xhci, "Endpoint 0x%x not halted, refusing to reset.\n",
+                                ep->desc.bEndpointAddress);
+                return;
+        }
+
+        xhci_dbg(xhci, "Queueing reset endpoint command\n");
+        spin_lock_irqsave(&xhci->lock, flags);
+        ret = xhci_queue_reset_ep(xhci, udev->slot_id, ep_index);
+        /*
+         * Can't change the ring dequeue pointer until it's transitioned to the
+         * stopped state, which is only upon a successful reset endpoint
+         * command.  Better hope that last command worked!
+         */
+        if (!ret) {
+                xhci_dbg(xhci, "Cleaning up stalled endpoint ring\n");
+                /* We need to move the HW's dequeue pointer past this TD,
+                 * or it will attempt to resend it on the next doorbell ring.
+                 */
+                xhci_find_new_dequeue_state(xhci, udev->slot_id,
+                                ep_index, ep_ring->stopped_td, &deq_state);
+                xhci_dbg(xhci, "Queueing new dequeue state\n");
+                xhci_queue_new_dequeue_state(xhci, ep_ring,
+                                udev->slot_id,
+                                ep_index, &deq_state);
+                kfree(ep_ring->stopped_td);
+                xhci_ring_cmd_db(xhci);
+        }
+        spin_unlock_irqrestore(&xhci->lock, flags);
+
+        if (ret)
+                xhci_warn(xhci, "FIXME allocate a new ring segment\n");
 }
 
 /*
@@ -1120,7 +1229,9 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev)
         struct xhci_virt_device *virt_dev;
         int ret = 0;
         struct xhci_hcd *xhci = hcd_to_xhci(hcd);
-        u32 temp;
+        struct xhci_slot_ctx *slot_ctx;
+        struct xhci_input_control_ctx *ctrl_ctx;
+        u64 temp_64;
 
         if (!udev->slot_id) {
                 xhci_dbg(xhci, "Bad Slot ID %d\n", udev->slot_id);
@@ -1133,10 +1244,12 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev)
         if (!udev->config)
                 xhci_setup_addressable_virt_dev(xhci, udev);
         /* Otherwise, assume the core has the device configured how it wants */
+        xhci_dbg(xhci, "Slot ID %d Input Context:\n", udev->slot_id);
+        xhci_dbg_ctx(xhci, virt_dev->in_ctx, 2);
 
         spin_lock_irqsave(&xhci->lock, flags);
-        ret = xhci_queue_address_device(xhci, virt_dev->in_ctx_dma,
-                        udev->slot_id);
+        ret = xhci_queue_address_device(xhci, virt_dev->in_ctx->dma,
+                                        udev->slot_id);
         if (ret) {
                 spin_unlock_irqrestore(&xhci->lock, flags);
                 xhci_dbg(xhci, "FIXME: allocate a command ring segment\n");
@@ -1176,41 +1289,37 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev)
         default:
                 xhci_err(xhci, "ERROR: unexpected command completion "
                                 "code 0x%x.\n", virt_dev->cmd_status);
+                xhci_dbg(xhci, "Slot ID %d Output Context:\n", udev->slot_id);
+                xhci_dbg_ctx(xhci, virt_dev->out_ctx, 2);
                 ret = -EINVAL;
                 break;
         }
         if (ret) {
                 return ret;
         }
-        temp = xhci_readl(xhci, &xhci->op_regs->dcbaa_ptr[0]);
-        xhci_dbg(xhci, "Op regs DCBAA ptr[0] = %#08x\n", temp);
-        temp = xhci_readl(xhci, &xhci->op_regs->dcbaa_ptr[1]);
-        xhci_dbg(xhci, "Op regs DCBAA ptr[1] = %#08x\n", temp);
-        xhci_dbg(xhci, "Slot ID %d dcbaa entry[0] @%p = %#08x\n",
-                        udev->slot_id,
-                        &xhci->dcbaa->dev_context_ptrs[2*udev->slot_id],
-                        xhci->dcbaa->dev_context_ptrs[2*udev->slot_id]);
-        xhci_dbg(xhci, "Slot ID %d dcbaa entry[1] @%p = %#08x\n",
+        temp_64 = xhci_read_64(xhci, &xhci->op_regs->dcbaa_ptr);
+        xhci_dbg(xhci, "Op regs DCBAA ptr = %#016llx\n", temp_64);
+        xhci_dbg(xhci, "Slot ID %d dcbaa entry @%p = %#016llx\n",
                         udev->slot_id,
-                        &xhci->dcbaa->dev_context_ptrs[2*udev->slot_id+1],
-                        xhci->dcbaa->dev_context_ptrs[2*udev->slot_id+1]);
+                        &xhci->dcbaa->dev_context_ptrs[udev->slot_id],
+                        (unsigned long long)
+                                xhci->dcbaa->dev_context_ptrs[udev->slot_id]);
         xhci_dbg(xhci, "Output Context DMA address = %#08llx\n",
-                        (unsigned long long)virt_dev->out_ctx_dma);
+                        (unsigned long long)virt_dev->out_ctx->dma);
         xhci_dbg(xhci, "Slot ID %d Input Context:\n", udev->slot_id);
-        xhci_dbg_ctx(xhci, virt_dev->in_ctx, virt_dev->in_ctx_dma, 2);
+        xhci_dbg_ctx(xhci, virt_dev->in_ctx, 2);
         xhci_dbg(xhci, "Slot ID %d Output Context:\n", udev->slot_id);
-        xhci_dbg_ctx(xhci, virt_dev->out_ctx, virt_dev->out_ctx_dma, 2);
+        xhci_dbg_ctx(xhci, virt_dev->out_ctx, 2);
         /*
          * USB core uses address 1 for the roothubs, so we add one to the
          * address given back to us by the HC.
          */
-        udev->devnum = (virt_dev->out_ctx->slot.dev_state & DEV_ADDR_MASK) + 1;
+        slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->out_ctx);
+        udev->devnum = (slot_ctx->dev_state & DEV_ADDR_MASK) + 1;
         /* Zero the input context control for later use */
-        virt_dev->in_ctx->add_flags = 0;
-        virt_dev->in_ctx->drop_flags = 0;
-        /* Mirror flags in the output context for future ep enable/disable */
-        virt_dev->out_ctx->add_flags = SLOT_FLAG | EP0_FLAG;
-        virt_dev->out_ctx->drop_flags = 0;
+        ctrl_ctx = xhci_get_input_control_ctx(xhci, virt_dev->in_ctx);
+        ctrl_ctx->add_flags = 0;
+        ctrl_ctx->drop_flags = 0;
 
         xhci_dbg(xhci, "Device address = %d\n", udev->devnum);
         /* XXX Meh, not sure if anyone else but choose_address uses this. */
@@ -1252,7 +1361,6 @@ static int __init xhci_hcd_init(void)
         /* xhci_device_control has eight fields, and also
          * embeds one xhci_slot_ctx and 31 xhci_ep_ctx
          */
-        BUILD_BUG_ON(sizeof(struct xhci_device_control) != (8+8+8*31)*32/8);
         BUILD_BUG_ON(sizeof(struct xhci_stream_ctx) != 4*32/8);
         BUILD_BUG_ON(sizeof(union xhci_trb) != 4*32/8);
         BUILD_BUG_ON(sizeof(struct xhci_erst_entry) != 4*32/8);
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index c8a72de1c508..e6b9a1c6002d 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -88,7 +88,7 @@ static void xhci_link_segments(struct xhci_hcd *xhci, struct xhci_segment *prev,
                 return;
         prev->next = next;
         if (link_trbs) {
-                prev->trbs[TRBS_PER_SEGMENT-1].link.segment_ptr[0] = next->dma;
+                prev->trbs[TRBS_PER_SEGMENT-1].link.segment_ptr = next->dma;
 
                 /* Set the last TRB in the segment to have a TRB type ID of Link TRB */
                 val = prev->trbs[TRBS_PER_SEGMENT-1].link.control;
@@ -189,6 +189,63 @@ fail:
         return 0;
 }
 
+#define CTX_SIZE(_hcc) (HCC_64BYTE_CONTEXT(_hcc) ? 64 : 32)
+
+struct xhci_container_ctx *xhci_alloc_container_ctx(struct xhci_hcd *xhci,
+                                                    int type, gfp_t flags)
+{
+        struct xhci_container_ctx *ctx = kzalloc(sizeof(*ctx), flags);
+        if (!ctx)
+                return NULL;
+
+        BUG_ON((type != XHCI_CTX_TYPE_DEVICE) && (type != XHCI_CTX_TYPE_INPUT));
+        ctx->type = type;
+        ctx->size = HCC_64BYTE_CONTEXT(xhci->hcc_params) ? 2048 : 1024;
+        if (type == XHCI_CTX_TYPE_INPUT)
+                ctx->size += CTX_SIZE(xhci->hcc_params);
+
+        ctx->bytes = dma_pool_alloc(xhci->device_pool, flags, &ctx->dma);
+        memset(ctx->bytes, 0, ctx->size);
+        return ctx;
+}
+
+void xhci_free_container_ctx(struct xhci_hcd *xhci,
+                             struct xhci_container_ctx *ctx)
+{
+        dma_pool_free(xhci->device_pool, ctx->bytes, ctx->dma);
+        kfree(ctx);
+}
+
+struct xhci_input_control_ctx *xhci_get_input_control_ctx(struct xhci_hcd *xhci,
+                                              struct xhci_container_ctx *ctx)
+{
+        BUG_ON(ctx->type != XHCI_CTX_TYPE_INPUT);
+        return (struct xhci_input_control_ctx *)ctx->bytes;
+}
+
+struct xhci_slot_ctx *xhci_get_slot_ctx(struct xhci_hcd *xhci,
+                                        struct xhci_container_ctx *ctx)
+{
+        if (ctx->type == XHCI_CTX_TYPE_DEVICE)
+                return (struct xhci_slot_ctx *)ctx->bytes;
+
+        return (struct xhci_slot_ctx *)
+                (ctx->bytes + CTX_SIZE(xhci->hcc_params));
+}
+
+struct xhci_ep_ctx *xhci_get_ep_ctx(struct xhci_hcd *xhci,
+                                    struct xhci_container_ctx *ctx,
+                                    unsigned int ep_index)
+{
+        /* increment ep index by offset of start of ep ctx array */
+        ep_index++;
+        if (ctx->type == XHCI_CTX_TYPE_INPUT)
+                ep_index++;
+
+        return (struct xhci_ep_ctx *)
+                (ctx->bytes + (ep_index * CTX_SIZE(xhci->hcc_params)));
+}
+
 /* All the xhci_tds in the ring's TD list should be freed at this point */
 void xhci_free_virt_device(struct xhci_hcd *xhci, int slot_id)
 {
@@ -200,8 +257,7 @@ void xhci_free_virt_device(struct xhci_hcd *xhci, int slot_id)
                 return;
 
         dev = xhci->devs[slot_id];
-        xhci->dcbaa->dev_context_ptrs[2*slot_id] = 0;
-        xhci->dcbaa->dev_context_ptrs[2*slot_id + 1] = 0;
+        xhci->dcbaa->dev_context_ptrs[slot_id] = 0;
         if (!dev)
                 return;
 
@@ -210,11 +266,10 @@ void xhci_free_virt_device(struct xhci_hcd *xhci, int slot_id)
                         xhci_ring_free(xhci, dev->ep_rings[i]);
 
         if (dev->in_ctx)
-                dma_pool_free(xhci->device_pool,
-                                dev->in_ctx, dev->in_ctx_dma);
+                xhci_free_container_ctx(xhci, dev->in_ctx);
         if (dev->out_ctx)
-                dma_pool_free(xhci->device_pool,
-                                dev->out_ctx, dev->out_ctx_dma);
+                xhci_free_container_ctx(xhci, dev->out_ctx);
+
         kfree(xhci->devs[slot_id]);
         xhci->devs[slot_id] = 0;
 }
@@ -222,7 +277,6 @@ void xhci_free_virt_device(struct xhci_hcd *xhci, int slot_id)
 int xhci_alloc_virt_device(struct xhci_hcd *xhci, int slot_id,
                 struct usb_device *udev, gfp_t flags)
 {
-        dma_addr_t      dma;
         struct xhci_virt_device *dev;
 
         /* Slot ID 0 is reserved */
@@ -236,23 +290,21 @@ int xhci_alloc_virt_device(struct xhci_hcd *xhci, int slot_id,
                 return 0;
         dev = xhci->devs[slot_id];
 
-        /* Allocate the (output) device context that will be used in the HC */
-        dev->out_ctx = dma_pool_alloc(xhci->device_pool, flags, &dma);
+        /* Allocate the (output) device context that will be used in the HC. */
+        dev->out_ctx = xhci_alloc_container_ctx(xhci, XHCI_CTX_TYPE_DEVICE, flags);
         if (!dev->out_ctx)
                 goto fail;
-        dev->out_ctx_dma = dma;
+
         xhci_dbg(xhci, "Slot %d output ctx = 0x%llx (dma)\n", slot_id,
-                        (unsigned long long)dma);
-        memset(dev->out_ctx, 0, sizeof(*dev->out_ctx));
+                        (unsigned long long)dev->out_ctx->dma);
 
         /* Allocate the (input) device context for address device command */
-        dev->in_ctx = dma_pool_alloc(xhci->device_pool, flags, &dma);
+        dev->in_ctx = xhci_alloc_container_ctx(xhci, XHCI_CTX_TYPE_INPUT, flags);
         if (!dev->in_ctx)
                 goto fail;
-        dev->in_ctx_dma = dma;
+
         xhci_dbg(xhci, "Slot %d input ctx = 0x%llx (dma)\n", slot_id,
-                        (unsigned long long)dma);
-        memset(dev->in_ctx, 0, sizeof(*dev->in_ctx));
+                        (unsigned long long)dev->in_ctx->dma);
 
         /* Allocate endpoint 0 ring */
         dev->ep_rings[0] = xhci_ring_alloc(xhci, 1, true, flags);
@@ -261,17 +313,12 @@ int xhci_alloc_virt_device(struct xhci_hcd *xhci, int slot_id,
 
         init_completion(&dev->cmd_completion);
 
-        /*
-         * Point to output device context in dcbaa; skip the output control
-         * context, which is eight 32 bit fields (or 32 bytes long)
-         */
-        xhci->dcbaa->dev_context_ptrs[2*slot_id] =
-                (u32) dev->out_ctx_dma + (32);
+        /* Point to output device context in dcbaa. */
+        xhci->dcbaa->dev_context_ptrs[slot_id] = dev->out_ctx->dma;
         xhci_dbg(xhci, "Set slot id %d dcbaa entry %p to 0x%llx\n",
                         slot_id,
-                        &xhci->dcbaa->dev_context_ptrs[2*slot_id],
-                        (unsigned long long)dev->out_ctx_dma);
-        xhci->dcbaa->dev_context_ptrs[2*slot_id + 1] = 0;
+                        &xhci->dcbaa->dev_context_ptrs[slot_id],
+                        (unsigned long long) xhci->dcbaa->dev_context_ptrs[slot_id]);
 
         return 1;
 fail:
@@ -285,6 +332,8 @@ int xhci_setup_addressable_virt_dev(struct xhci_hcd *xhci, struct usb_device *ud
         struct xhci_virt_device *dev;
         struct xhci_ep_ctx      *ep0_ctx;
         struct usb_device       *top_dev;
+        struct xhci_slot_ctx    *slot_ctx;
+        struct xhci_input_control_ctx *ctrl_ctx;
 
         dev = xhci->devs[udev->slot_id];
         /* Slot ID 0 is reserved */
@@ -293,27 +342,29 @@ int xhci_setup_addressable_virt_dev(struct xhci_hcd *xhci, struct usb_device *ud
                                 udev->slot_id);
                 return -EINVAL;
         }
-        ep0_ctx = &dev->in_ctx->ep[0];
+        ep0_ctx = xhci_get_ep_ctx(xhci, dev->in_ctx, 0);
+        ctrl_ctx = xhci_get_input_control_ctx(xhci, dev->in_ctx);
+        slot_ctx = xhci_get_slot_ctx(xhci, dev->in_ctx);
 
         /* 2) New slot context and endpoint 0 context are valid*/
-        dev->in_ctx->add_flags = SLOT_FLAG | EP0_FLAG;
+        ctrl_ctx->add_flags = SLOT_FLAG | EP0_FLAG;
 
         /* 3) Only the control endpoint is valid - one endpoint context */
-        dev->in_ctx->slot.dev_info |= LAST_CTX(1);
+        slot_ctx->dev_info |= LAST_CTX(1);
 
         switch (udev->speed) {
         case USB_SPEED_SUPER:
-                dev->in_ctx->slot.dev_info |= (u32) udev->route;
-                dev->in_ctx->slot.dev_info |= (u32) SLOT_SPEED_SS;
+                slot_ctx->dev_info |= (u32) udev->route;
+                slot_ctx->dev_info |= (u32) SLOT_SPEED_SS;
                 break;
         case USB_SPEED_HIGH:
-                dev->in_ctx->slot.dev_info |= (u32) SLOT_SPEED_HS;
+                slot_ctx->dev_info |= (u32) SLOT_SPEED_HS;
                 break;
         case USB_SPEED_FULL:
-                dev->in_ctx->slot.dev_info |= (u32) SLOT_SPEED_FS;
+                slot_ctx->dev_info |= (u32) SLOT_SPEED_FS;
                 break;
         case USB_SPEED_LOW:
-                dev->in_ctx->slot.dev_info |= (u32) SLOT_SPEED_LS;
+                slot_ctx->dev_info |= (u32) SLOT_SPEED_LS;
                 break;
         case USB_SPEED_VARIABLE:
                 xhci_dbg(xhci, "FIXME xHCI doesn't support wireless speeds\n");
@@ -327,7 +378,7 @@ int xhci_setup_addressable_virt_dev(struct xhci_hcd *xhci, struct usb_device *ud
         for (top_dev = udev; top_dev->parent && top_dev->parent->parent;
                         top_dev = top_dev->parent)
                 /* Found device below root hub */;
-        dev->in_ctx->slot.dev_info2 |= (u32) ROOT_HUB_PORT(top_dev->portnum);
+        slot_ctx->dev_info2 |= (u32) ROOT_HUB_PORT(top_dev->portnum);
         xhci_dbg(xhci, "Set root hub portnum to %d\n", top_dev->portnum);
 
         /* Is this a LS/FS device under a HS hub? */
@@ -337,8 +388,8 @@ int xhci_setup_addressable_virt_dev(struct xhci_hcd *xhci, struct usb_device *ud
          */
         if ((udev->speed == USB_SPEED_LOW || udev->speed == USB_SPEED_FULL) &&
                         udev->tt) {
-                dev->in_ctx->slot.tt_info = udev->tt->hub->slot_id;
-                dev->in_ctx->slot.tt_info |= udev->ttport << 8;
+                slot_ctx->tt_info = udev->tt->hub->slot_id;
+                slot_ctx->tt_info |= udev->ttport << 8;
         }
         xhci_dbg(xhci, "udev->tt = %p\n", udev->tt);
         xhci_dbg(xhci, "udev->ttport = 0x%x\n", udev->ttport);
@@ -360,10 +411,9 @@ int xhci_setup_addressable_virt_dev(struct xhci_hcd *xhci, struct usb_device *ud
         ep0_ctx->ep_info2 |= MAX_BURST(0);
         ep0_ctx->ep_info2 |= ERROR_COUNT(3);
 
-        ep0_ctx->deq[0] =
+        ep0_ctx->deq =
                 dev->ep_rings[0]->first_seg->dma;
-        ep0_ctx->deq[0] |= dev->ep_rings[0]->cycle_state;
-        ep0_ctx->deq[1] = 0;
+        ep0_ctx->deq |= dev->ep_rings[0]->cycle_state;
 
         /* Steps 7 and 8 were done in xhci_alloc_virt_device() */
 
@@ -470,25 +520,26 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
         unsigned int max_burst;
 
         ep_index = xhci_get_endpoint_index(&ep->desc);
-        ep_ctx = &virt_dev->in_ctx->ep[ep_index];
+        ep_ctx = xhci_get_ep_ctx(xhci, virt_dev->in_ctx, ep_index);
 
         /* Set up the endpoint ring */
         virt_dev->new_ep_rings[ep_index] = xhci_ring_alloc(xhci, 1, true, mem_flags);
         if (!virt_dev->new_ep_rings[ep_index])
                 return -ENOMEM;
         ep_ring = virt_dev->new_ep_rings[ep_index];
-        ep_ctx->deq[0] = ep_ring->first_seg->dma | ep_ring->cycle_state;
-        ep_ctx->deq[1] = 0;
+        ep_ctx->deq = ep_ring->first_seg->dma | ep_ring->cycle_state;
 
         ep_ctx->ep_info = xhci_get_endpoint_interval(udev, ep);
 
         /* FIXME dig Mult and streams info out of ep companion desc */
 
-        /* Allow 3 retries for everything but isoc */
+        /* Allow 3 retries for everything but isoc;
+         * error count = 0 means infinite retries.
+         */
         if (!usb_endpoint_xfer_isoc(&ep->desc))
                 ep_ctx->ep_info2 = ERROR_COUNT(3);
         else
-                ep_ctx->ep_info2 = ERROR_COUNT(0);
+                ep_ctx->ep_info2 = ERROR_COUNT(1);
 
         ep_ctx->ep_info2 |= xhci_get_endpoint_type(udev, ep);
 
@@ -498,7 +549,12 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
                 max_packet = ep->desc.wMaxPacketSize;
                 ep_ctx->ep_info2 |= MAX_PACKET(max_packet);
                 /* dig out max burst from ep companion desc */
-                max_packet = ep->ss_ep_comp->desc.bMaxBurst;
+                if (!ep->ss_ep_comp) {
+                        xhci_warn(xhci, "WARN no SS endpoint companion descriptor.\n");
+                        max_packet = 0;
+                } else {
+                        max_packet = ep->ss_ep_comp->desc.bMaxBurst;
+                }
                 ep_ctx->ep_info2 |= MAX_BURST(max_packet);
                 break;
         case USB_SPEED_HIGH:
@@ -531,18 +587,114 @@ void xhci_endpoint_zero(struct xhci_hcd *xhci,
         struct xhci_ep_ctx *ep_ctx;
 
         ep_index = xhci_get_endpoint_index(&ep->desc);
-        ep_ctx = &virt_dev->in_ctx->ep[ep_index];
+        ep_ctx = xhci_get_ep_ctx(xhci, virt_dev->in_ctx, ep_index);
 
         ep_ctx->ep_info = 0;
         ep_ctx->ep_info2 = 0;
-        ep_ctx->deq[0] = 0;
-        ep_ctx->deq[1] = 0;
+        ep_ctx->deq = 0;
         ep_ctx->tx_info = 0;
         /* Don't free the endpoint ring until the set interface or configuration
          * request succeeds.
          */
 }
 
+/* Set up the scratchpad buffer array and scratchpad buffers, if needed. */
+static int scratchpad_alloc(struct xhci_hcd *xhci, gfp_t flags)
+{
+        int i;
+        struct device *dev = xhci_to_hcd(xhci)->self.controller;
+        int num_sp = HCS_MAX_SCRATCHPAD(xhci->hcs_params2);
+
+        xhci_dbg(xhci, "Allocating %d scratchpad buffers\n", num_sp);
+
+        if (!num_sp)
+                return 0;
+
+        xhci->scratchpad = kzalloc(sizeof(*xhci->scratchpad), flags);
+        if (!xhci->scratchpad)
+                goto fail_sp;
+
+        xhci->scratchpad->sp_array =
+                pci_alloc_consistent(to_pci_dev(dev),
+                                     num_sp * sizeof(u64),
+                                     &xhci->scratchpad->sp_dma);
+        if (!xhci->scratchpad->sp_array)
+                goto fail_sp2;
+
+        xhci->scratchpad->sp_buffers = kzalloc(sizeof(void *) * num_sp, flags);
+        if (!xhci->scratchpad->sp_buffers)
+                goto fail_sp3;
+
+        xhci->scratchpad->sp_dma_buffers =
+                kzalloc(sizeof(dma_addr_t) * num_sp, flags);
+
+        if (!xhci->scratchpad->sp_dma_buffers)
+                goto fail_sp4;
+
+        xhci->dcbaa->dev_context_ptrs[0] = xhci->scratchpad->sp_dma;
+        for (i = 0; i < num_sp; i++) {
+                dma_addr_t dma;
+                void *buf = pci_alloc_consistent(to_pci_dev(dev),
+                                                 xhci->page_size, &dma);
+                if (!buf)
+                        goto fail_sp5;
+
+                xhci->scratchpad->sp_array[i] = dma;
+                xhci->scratchpad->sp_buffers[i] = buf;
+                xhci->scratchpad->sp_dma_buffers[i] = dma;
+        }
+
+        return 0;
+
+ fail_sp5:
+        for (i = i - 1; i >= 0; i--) {
+                pci_free_consistent(to_pci_dev(dev), xhci->page_size,
+                                    xhci->scratchpad->sp_buffers[i],
+                                    xhci->scratchpad->sp_dma_buffers[i]);
+        }
+        kfree(xhci->scratchpad->sp_dma_buffers);
+
+ fail_sp4:
+        kfree(xhci->scratchpad->sp_buffers);
+
+ fail_sp3:
+        pci_free_consistent(to_pci_dev(dev), num_sp * sizeof(u64),
+                            xhci->scratchpad->sp_array,
+                            xhci->scratchpad->sp_dma);
+
+ fail_sp2:
+        kfree(xhci->scratchpad);
+        xhci->scratchpad = NULL;
+
+ fail_sp:
+        return -ENOMEM;
+}
+
+static void scratchpad_free(struct xhci_hcd *xhci)
+{
+        int num_sp;
+        int i;
+        struct pci_dev  *pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller);
+
+        if (!xhci->scratchpad)
+                return;
+
+        num_sp = HCS_MAX_SCRATCHPAD(xhci->hcs_params2);
+
+        for (i = 0; i < num_sp; i++) {
+                pci_free_consistent(pdev, xhci->page_size,
+                                    xhci->scratchpad->sp_buffers[i],
+                                    xhci->scratchpad->sp_dma_buffers[i]);
+        }
+        kfree(xhci->scratchpad->sp_dma_buffers);
+        kfree(xhci->scratchpad->sp_buffers);
+        pci_free_consistent(pdev, num_sp * sizeof(u64),
+                            xhci->scratchpad->sp_array,
+                            xhci->scratchpad->sp_dma);
+        kfree(xhci->scratchpad);
+        xhci->scratchpad = NULL;
+}
+
 void xhci_mem_cleanup(struct xhci_hcd *xhci)
 {
         struct pci_dev  *pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller);
@@ -551,10 +703,8 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
 
         /* Free the Event Ring Segment Table and the actual Event Ring */
         xhci_writel(xhci, 0, &xhci->ir_set->erst_size);
-        xhci_writel(xhci, 0, &xhci->ir_set->erst_base[0]);
-        xhci_writel(xhci, 0, &xhci->ir_set->erst_base[1]);
-        xhci_writel(xhci, 0, &xhci->ir_set->erst_dequeue[0]);
-        xhci_writel(xhci, 0, &xhci->ir_set->erst_dequeue[1]);
+        xhci_write_64(xhci, 0, &xhci->ir_set->erst_base);
+        xhci_write_64(xhci, 0, &xhci->ir_set->erst_dequeue);
         size = sizeof(struct xhci_erst_entry)*(xhci->erst.num_entries);
         if (xhci->erst.entries)
                 pci_free_consistent(pdev, size,
@@ -566,8 +716,7 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
         xhci->event_ring = NULL;
         xhci_dbg(xhci, "Freed event ring\n");
 
-        xhci_writel(xhci, 0, &xhci->op_regs->cmd_ring[0]);
-        xhci_writel(xhci, 0, &xhci->op_regs->cmd_ring[1]);
+        xhci_write_64(xhci, 0, &xhci->op_regs->cmd_ring);
         if (xhci->cmd_ring)
                 xhci_ring_free(xhci, xhci->cmd_ring);
         xhci->cmd_ring = NULL;
@@ -586,8 +735,7 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
         xhci->device_pool = NULL;
         xhci_dbg(xhci, "Freed device context pool\n");
 
-        xhci_writel(xhci, 0, &xhci->op_regs->dcbaa_ptr[0]);
-        xhci_writel(xhci, 0, &xhci->op_regs->dcbaa_ptr[1]);
+        xhci_write_64(xhci, 0, &xhci->op_regs->dcbaa_ptr);
         if (xhci->dcbaa)
                 pci_free_consistent(pdev, sizeof(*xhci->dcbaa),
                                 xhci->dcbaa, xhci->dcbaa->dma);
@@ -595,6 +743,7 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
 
         xhci->page_size = 0;
         xhci->page_shift = 0;
+        scratchpad_free(xhci);
 }
 
 int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
@@ -602,6 +751,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
         dma_addr_t      dma;
         struct device   *dev = xhci_to_hcd(xhci)->self.controller;
         unsigned int    val, val2;
+        u64             val_64;
         struct xhci_segment     *seg;
         u32 page_size;
         int i;
@@ -647,8 +797,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
         xhci->dcbaa->dma = dma;
         xhci_dbg(xhci, "// Device context base array address = 0x%llx (DMA), %p (virt)\n",
                         (unsigned long long)xhci->dcbaa->dma, xhci->dcbaa);
-        xhci_writel(xhci, dma, &xhci->op_regs->dcbaa_ptr[0]);
-        xhci_writel(xhci, (u32) 0, &xhci->op_regs->dcbaa_ptr[1]);
+        xhci_write_64(xhci, dma, &xhci->op_regs->dcbaa_ptr);
 
         /*
          * Initialize the ring segment pool.  The ring must be a contiguous
@@ -658,11 +807,10 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
          */
         xhci->segment_pool = dma_pool_create("xHCI ring segments", dev,
                         SEGMENT_SIZE, 64, xhci->page_size);
+
         /* See Table 46 and Note on Figure 55 */
-        /* FIXME support 64-byte contexts */
         xhci->device_pool = dma_pool_create("xHCI input/output contexts", dev,
-                        sizeof(struct xhci_device_control),
-                        64, xhci->page_size);
+                        2112, 64, xhci->page_size);
         if (!xhci->segment_pool || !xhci->device_pool)
                 goto fail;
 
@@ -675,14 +823,12 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
                         (unsigned long long)xhci->cmd_ring->first_seg->dma);
 
         /* Set the address in the Command Ring Control register */
-        val = xhci_readl(xhci, &xhci->op_regs->cmd_ring[0]);
-        val = (val & ~CMD_RING_ADDR_MASK) |
-                (xhci->cmd_ring->first_seg->dma & CMD_RING_ADDR_MASK) |
+        val_64 = xhci_read_64(xhci, &xhci->op_regs->cmd_ring);
+        val_64 = (val_64 & (u64) CMD_RING_RSVD_BITS) |
+                (xhci->cmd_ring->first_seg->dma & (u64) ~CMD_RING_RSVD_BITS) |
                 xhci->cmd_ring->cycle_state;
-        xhci_dbg(xhci, "// Setting command ring address low bits to 0x%x\n", val);
-        xhci_writel(xhci, val, &xhci->op_regs->cmd_ring[0]);
-        xhci_dbg(xhci, "// Setting command ring address high bits to 0x0\n");
-        xhci_writel(xhci, (u32) 0, &xhci->op_regs->cmd_ring[1]);
+        xhci_dbg(xhci, "// Setting command ring address to 0x%x\n", val);
+        xhci_write_64(xhci, val_64, &xhci->op_regs->cmd_ring);
         xhci_dbg_cmd_ptrs(xhci);
 
         val = xhci_readl(xhci, &xhci->cap_regs->db_off);
@@ -722,8 +868,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
         /* set ring base address and size for each segment table entry */
         for (val = 0, seg = xhci->event_ring->first_seg; val < ERST_NUM_SEGS; val++) {
                 struct xhci_erst_entry *entry = &xhci->erst.entries[val];
-                entry->seg_addr[0] = seg->dma;
-                entry->seg_addr[1] = 0;
+                entry->seg_addr = seg->dma;
                 entry->seg_size = TRBS_PER_SEGMENT;
                 entry->rsvd = 0;
                 seg = seg->next;
@@ -741,11 +886,10 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
         /* set the segment table base address */
         xhci_dbg(xhci, "// Set ERST base address for ir_set 0 = 0x%llx\n",
                         (unsigned long long)xhci->erst.erst_dma_addr);
-        val = xhci_readl(xhci, &xhci->ir_set->erst_base[0]);
-        val &= ERST_PTR_MASK;
-        val |= (xhci->erst.erst_dma_addr & ~ERST_PTR_MASK);
-        xhci_writel(xhci, val, &xhci->ir_set->erst_base[0]);
-        xhci_writel(xhci, 0, &xhci->ir_set->erst_base[1]);
+        val_64 = xhci_read_64(xhci, &xhci->ir_set->erst_base);
+        val_64 &= ERST_PTR_MASK;
+        val_64 |= (xhci->erst.erst_dma_addr & (u64) ~ERST_PTR_MASK);
+        xhci_write_64(xhci, val_64, &xhci->ir_set->erst_base);
 
         /* Set the event ring dequeue address */
         xhci_set_hc_event_deq(xhci);
@@ -761,7 +905,11 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
         for (i = 0; i < MAX_HC_SLOTS; ++i)
                 xhci->devs[i] = 0;
 
+        if (scratchpad_alloc(xhci, flags))
+                goto fail;
+
         return 0;
+
 fail:
         xhci_warn(xhci, "Couldn't initialize memory\n");
         xhci_mem_cleanup(xhci);
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 1462709e26c0..592fe7e623f7 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -117,6 +117,7 @@ static const struct hc_driver xhci_pci_hc_driver = {
         .free_dev =             xhci_free_dev,
         .add_endpoint =         xhci_add_endpoint,
         .drop_endpoint =        xhci_drop_endpoint,
+        .endpoint_reset =       xhci_endpoint_reset,
         .check_bandwidth =      xhci_check_bandwidth,
         .reset_bandwidth =      xhci_reset_bandwidth,
         .address_device =       xhci_address_device,
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 02d81985c454..aa88a067148b 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -135,6 +135,7 @@ static void next_trb(struct xhci_hcd *xhci,
 static void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring, bool consumer)
 {
         union xhci_trb *next = ++(ring->dequeue);
+        unsigned long long addr;
 
         ring->deq_updates++;
         /* Update the dequeue pointer further if that was a link TRB or we're at
@@ -152,6 +153,13 @@ static void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring, bool consumer
                 ring->dequeue = ring->deq_seg->trbs;
                 next = ring->dequeue;
         }
+        addr = (unsigned long long) xhci_trb_virt_to_dma(ring->deq_seg, ring->dequeue);
+        if (ring == xhci->event_ring)
+                xhci_dbg(xhci, "Event ring deq = 0x%llx (DMA)\n", addr);
+        else if (ring == xhci->cmd_ring)
+                xhci_dbg(xhci, "Command ring deq = 0x%llx (DMA)\n", addr);
+        else
+                xhci_dbg(xhci, "Ring deq = 0x%llx (DMA)\n", addr);
 }
 
 /*
@@ -171,6 +179,7 @@ static void inc_enq(struct xhci_hcd *xhci, struct xhci_ring *ring, bool consumer
 {
         u32 chain;
         union xhci_trb *next;
+        unsigned long long addr;
 
         chain = ring->enqueue->generic.field[3] & TRB_CHAIN;
         next = ++(ring->enqueue);
@@ -204,6 +213,13 @@ static void inc_enq(struct xhci_hcd *xhci, struct xhci_ring *ring, bool consumer
                 ring->enqueue = ring->enq_seg->trbs;
                 next = ring->enqueue;
         }
+        addr = (unsigned long long) xhci_trb_virt_to_dma(ring->enq_seg, ring->enqueue);
+        if (ring == xhci->event_ring)
+                xhci_dbg(xhci, "Event ring enq = 0x%llx (DMA)\n", addr);
+        else if (ring == xhci->cmd_ring)
+                xhci_dbg(xhci, "Command ring enq = 0x%llx (DMA)\n", addr);
+        else
+                xhci_dbg(xhci, "Ring enq = 0x%llx (DMA)\n", addr);
 }
 
 /*
@@ -237,7 +253,7 @@ static int room_on_ring(struct xhci_hcd *xhci, struct xhci_ring *ring,
 
 void xhci_set_hc_event_deq(struct xhci_hcd *xhci)
 {
-        u32 temp;
+        u64 temp;
         dma_addr_t deq;
 
         deq = xhci_trb_virt_to_dma(xhci->event_ring->deq_seg,
@@ -246,13 +262,15 @@ void xhci_set_hc_event_deq(struct xhci_hcd *xhci)
                 xhci_warn(xhci, "WARN something wrong with SW event ring "
                                 "dequeue ptr.\n");
         /* Update HC event ring dequeue pointer */
-        temp = xhci_readl(xhci, &xhci->ir_set->erst_dequeue[0]);
+        temp = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue);
         temp &= ERST_PTR_MASK;
-        if (!in_interrupt())
-                xhci_dbg(xhci, "// Write event ring dequeue pointer\n");
-        xhci_writel(xhci, 0, &xhci->ir_set->erst_dequeue[1]);
-        xhci_writel(xhci, (deq & ~ERST_PTR_MASK) | temp,
-                        &xhci->ir_set->erst_dequeue[0]);
+        /* Don't clear the EHB bit (which is RW1C) because
+         * there might be more events to service.
+         */
+        temp &= ~ERST_EHB;
+        xhci_dbg(xhci, "// Write event ring dequeue pointer, preserving EHB bit\n");
+        xhci_write_64(xhci, ((u64) deq & (u64) ~ERST_PTR_MASK) | temp,
+                        &xhci->ir_set->erst_dequeue);
 }
 
 /* Ring the host controller doorbell after placing a command on the ring */
@@ -279,7 +297,8 @@ static void ring_ep_doorbell(struct xhci_hcd *xhci,
         /* Don't ring the doorbell for this endpoint if there are pending
          * cancellations because the we don't want to interrupt processing.
          */
-        if (!ep_ring->cancels_pending && !(ep_ring->state & SET_DEQ_PENDING)) {
+        if (!ep_ring->cancels_pending && !(ep_ring->state & SET_DEQ_PENDING)
+                        && !(ep_ring->state & EP_HALTED)) {
                 field = xhci_readl(xhci, db_addr) & DB_MASK;
                 xhci_writel(xhci, field | EPI_TO_DB(ep_index), db_addr);
                 /* Flush PCI posted writes - FIXME Matthew Wilcox says this
@@ -316,12 +335,6 @@ static struct xhci_segment *find_trb_seg(
         return cur_seg;
 }
 
-struct dequeue_state {
-        struct xhci_segment *new_deq_seg;
-        union xhci_trb *new_deq_ptr;
-        int new_cycle_state;
-};
-
 /*
  * Move the xHC's endpoint ring dequeue pointer past cur_td.
  * Record the new state of the xHC's endpoint ring dequeue segment,
@@ -336,24 +349,30 @@ struct dequeue_state {
  *  - Finally we move the dequeue state one TRB further, toggling the cycle bit
  *    if we've moved it past a link TRB with the toggle cycle bit set.
  */
-static void find_new_dequeue_state(struct xhci_hcd *xhci,
+void xhci_find_new_dequeue_state(struct xhci_hcd *xhci,
                 unsigned int slot_id, unsigned int ep_index,
-                struct xhci_td *cur_td, struct dequeue_state *state)
+                struct xhci_td *cur_td, struct xhci_dequeue_state *state)
 {
         struct xhci_virt_device *dev = xhci->devs[slot_id];
         struct xhci_ring *ep_ring = dev->ep_rings[ep_index];
         struct xhci_generic_trb *trb;
+        struct xhci_ep_ctx *ep_ctx;
+        dma_addr_t addr;
 
         state->new_cycle_state = 0;
+        xhci_dbg(xhci, "Finding segment containing stopped TRB.\n");
         state->new_deq_seg = find_trb_seg(cur_td->start_seg,
                         ep_ring->stopped_trb,
                         &state->new_cycle_state);
         if (!state->new_deq_seg)
                 BUG();
         /* Dig out the cycle state saved by the xHC during the stop ep cmd */
-        state->new_cycle_state = 0x1 & dev->out_ctx->ep[ep_index].deq[0];
+        xhci_dbg(xhci, "Finding endpoint context\n");
+        ep_ctx = xhci_get_ep_ctx(xhci, dev->out_ctx, ep_index);
+        state->new_cycle_state = 0x1 & ep_ctx->deq;
 
         state->new_deq_ptr = cur_td->last_trb;
+        xhci_dbg(xhci, "Finding segment containing last TRB in TD.\n");
         state->new_deq_seg = find_trb_seg(state->new_deq_seg,
                         state->new_deq_ptr,
                         &state->new_cycle_state);
@@ -367,6 +386,12 @@ static void find_new_dequeue_state(struct xhci_hcd *xhci,
         next_trb(xhci, ep_ring, &state->new_deq_seg, &state->new_deq_ptr);
 
         /* Don't update the ring cycle state for the producer (us). */
+        xhci_dbg(xhci, "New dequeue segment = %p (virtual)\n",
+                        state->new_deq_seg);
+        addr = xhci_trb_virt_to_dma(state->new_deq_seg, state->new_deq_ptr);
+        xhci_dbg(xhci, "New dequeue pointer = 0x%llx (DMA)\n",
+                        (unsigned long long) addr);
+        xhci_dbg(xhci, "Setting dequeue pointer in internal ring state.\n");
         ep_ring->dequeue = state->new_deq_ptr;
         ep_ring->deq_seg = state->new_deq_seg;
 }
@@ -416,6 +441,30 @@ static int queue_set_tr_deq(struct xhci_hcd *xhci, int slot_id,
                 unsigned int ep_index, struct xhci_segment *deq_seg,
                 union xhci_trb *deq_ptr, u32 cycle_state);
 
+void xhci_queue_new_dequeue_state(struct xhci_hcd *xhci,
+                struct xhci_ring *ep_ring, unsigned int slot_id,
+                unsigned int ep_index, struct xhci_dequeue_state *deq_state)
+{
+        xhci_dbg(xhci, "Set TR Deq Ptr cmd, new deq seg = %p (0x%llx dma), "
+                        "new deq ptr = %p (0x%llx dma), new cycle = %u\n",
+                        deq_state->new_deq_seg,
+                        (unsigned long long)deq_state->new_deq_seg->dma,
+                        deq_state->new_deq_ptr,
+                        (unsigned long long)xhci_trb_virt_to_dma(deq_state->new_deq_seg, deq_state->new_deq_ptr),
+                        deq_state->new_cycle_state);
+        queue_set_tr_deq(xhci, slot_id, ep_index,
+                        deq_state->new_deq_seg,
+                        deq_state->new_deq_ptr,
+                        (u32) deq_state->new_cycle_state);
+        /* Stop the TD queueing code from ringing the doorbell until
+         * this command completes.  The HC won't set the dequeue pointer
+         * if the ring is running, and ringing the doorbell starts the
+         * ring running.
+         */
+        ep_ring->state |= SET_DEQ_PENDING;
+        xhci_ring_cmd_db(xhci);
+}
+
 /*
  * When we get a command completion for a Stop Endpoint Command, we need to
  * unlink any cancelled TDs from the ring.  There are two ways to do that:
@@ -436,7 +485,7 @@ static void handle_stopped_endpoint(struct xhci_hcd *xhci,
         struct xhci_td *cur_td = 0;
         struct xhci_td *last_unlinked_td;
 
-        struct dequeue_state deq_state;
+        struct xhci_dequeue_state deq_state;
 #ifdef CONFIG_USB_HCD_STAT
         ktime_t stop_time = ktime_get();
 #endif
@@ -464,7 +513,7 @@ static void handle_stopped_endpoint(struct xhci_hcd *xhci,
                  * move the xHC endpoint ring dequeue pointer past this TD.
                  */
                 if (cur_td == ep_ring->stopped_td)
-                        find_new_dequeue_state(xhci, slot_id, ep_index, cur_td,
+                        xhci_find_new_dequeue_state(xhci, slot_id, ep_index, cur_td,
                                         &deq_state);
                 else
                         td_to_noop(xhci, ep_ring, cur_td);
@@ -480,24 +529,8 @@ static void handle_stopped_endpoint(struct xhci_hcd *xhci,
 
         /* If necessary, queue a Set Transfer Ring Dequeue Pointer command */
         if (deq_state.new_deq_ptr && deq_state.new_deq_seg) {
-                xhci_dbg(xhci, "Set TR Deq Ptr cmd, new deq seg = %p (0x%llx dma), "
-                                "new deq ptr = %p (0x%llx dma), new cycle = %u\n",
-                                deq_state.new_deq_seg,
-                                (unsigned long long)deq_state.new_deq_seg->dma,
-                                deq_state.new_deq_ptr,
-                                (unsigned long long)xhci_trb_virt_to_dma(deq_state.new_deq_seg, deq_state.new_deq_ptr),
-                                deq_state.new_cycle_state);
-                queue_set_tr_deq(xhci, slot_id, ep_index,
-                                deq_state.new_deq_seg,
-                                deq_state.new_deq_ptr,
-                                (u32) deq_state.new_cycle_state);
-                /* Stop the TD queueing code from ringing the doorbell until
-                 * this command completes.  The HC won't set the dequeue pointer
-                 * if the ring is running, and ringing the doorbell starts the
-                 * ring running.
-                 */
-                ep_ring->state |= SET_DEQ_PENDING;
-                xhci_ring_cmd_db(xhci);
+                xhci_queue_new_dequeue_state(xhci, ep_ring,
+                                slot_id, ep_index, &deq_state);
         } else {
                 /* Otherwise just ring the doorbell to restart the ring */
                 ring_ep_doorbell(xhci, slot_id, ep_index);
@@ -551,11 +584,15 @@ static void handle_set_deq_completion(struct xhci_hcd *xhci,
         unsigned int ep_index;
         struct xhci_ring *ep_ring;
         struct xhci_virt_device *dev;
+        struct xhci_ep_ctx *ep_ctx;
+        struct xhci_slot_ctx *slot_ctx;
 
         slot_id = TRB_TO_SLOT_ID(trb->generic.field[3]);
         ep_index = TRB_TO_EP_INDEX(trb->generic.field[3]);
         dev = xhci->devs[slot_id];
         ep_ring = dev->ep_rings[ep_index];
+        ep_ctx = xhci_get_ep_ctx(xhci, dev->out_ctx, ep_index);
+        slot_ctx = xhci_get_slot_ctx(xhci, dev->out_ctx);
 
         if (GET_COMP_CODE(event->status) != COMP_SUCCESS) {
                 unsigned int ep_state;
@@ -569,9 +606,9 @@ static void handle_set_deq_completion(struct xhci_hcd *xhci,
                 case COMP_CTX_STATE:
                         xhci_warn(xhci, "WARN Set TR Deq Ptr cmd failed due "
                                         "to incorrect slot or ep state.\n");
-                        ep_state = dev->out_ctx->ep[ep_index].ep_info;
+                        ep_state = ep_ctx->ep_info;
                         ep_state &= EP_STATE_MASK;
-                        slot_state = dev->out_ctx->slot.dev_state;
+                        slot_state = slot_ctx->dev_state;
                         slot_state = GET_SLOT_STATE(slot_state);
                         xhci_dbg(xhci, "Slot state = %u, EP state = %u\n",
                                         slot_state, ep_state);
@@ -593,16 +630,33 @@ static void handle_set_deq_completion(struct xhci_hcd *xhci,
                  * cancelling URBs, which might not be an error...
                  */
         } else {
-                xhci_dbg(xhci, "Successful Set TR Deq Ptr cmd, deq[0] = 0x%x, "
-                                "deq[1] = 0x%x.\n",
-                                dev->out_ctx->ep[ep_index].deq[0],
-                                dev->out_ctx->ep[ep_index].deq[1]);
+                xhci_dbg(xhci, "Successful Set TR Deq Ptr cmd, deq = @%08llx\n",
+                                ep_ctx->deq);
         }
 
         ep_ring->state &= ~SET_DEQ_PENDING;
         ring_ep_doorbell(xhci, slot_id, ep_index);
 }
 
+static void handle_reset_ep_completion(struct xhci_hcd *xhci,
+                struct xhci_event_cmd *event,
+                union xhci_trb *trb)
+{
+        int slot_id;
+        unsigned int ep_index;
+
+        slot_id = TRB_TO_SLOT_ID(trb->generic.field[3]);
+        ep_index = TRB_TO_EP_INDEX(trb->generic.field[3]);
+        /* This command will only fail if the endpoint wasn't halted,
+         * but we don't care.
+         */
+        xhci_dbg(xhci, "Ignoring reset ep completion code of %u\n",
+                        (unsigned int) GET_COMP_CODE(event->status));
+
+        /* Clear our internal halted state and restart the ring */
+        xhci->devs[slot_id]->ep_rings[ep_index]->state &= ~EP_HALTED;
+        ring_ep_doorbell(xhci, slot_id, ep_index);
+}
 
 static void handle_cmd_completion(struct xhci_hcd *xhci,
                 struct xhci_event_cmd *event)
@@ -611,7 +665,7 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
         u64 cmd_dma;
         dma_addr_t cmd_dequeue_dma;
 
-        cmd_dma = (((u64) event->cmd_trb[1]) << 32) + event->cmd_trb[0];
+        cmd_dma = event->cmd_trb;
         cmd_dequeue_dma = xhci_trb_virt_to_dma(xhci->cmd_ring->deq_seg,
                         xhci->cmd_ring->dequeue);
         /* Is the command ring deq ptr out of sync with the deq seg ptr? */
@@ -653,6 +707,9 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
         case TRB_TYPE(TRB_CMD_NOOP):
                 ++xhci->noops_handled;
                 break;
+        case TRB_TYPE(TRB_RESET_EP):
+                handle_reset_ep_completion(xhci, event, xhci->cmd_ring->dequeue);
+                break;
         default:
                 /* Skip over unknown commands on the event ring */
                 xhci->error_bitmask |= 1 << 6;
@@ -756,7 +813,9 @@ static int handle_tx_event(struct xhci_hcd *xhci,
         union xhci_trb *event_trb;
         struct urb *urb = 0;
         int status = -EINPROGRESS;
+        struct xhci_ep_ctx *ep_ctx;
 
+        xhci_dbg(xhci, "In %s\n", __func__);
         xdev = xhci->devs[TRB_TO_SLOT_ID(event->flags)];
         if (!xdev) {
                 xhci_err(xhci, "ERROR Transfer event pointed to bad slot\n");
@@ -765,17 +824,17 @@ static int handle_tx_event(struct xhci_hcd *xhci,
 
         /* Endpoint ID is 1 based, our index is zero based */
         ep_index = TRB_TO_EP_ID(event->flags) - 1;
+        xhci_dbg(xhci, "%s - ep index = %d\n", __func__, ep_index);
         ep_ring = xdev->ep_rings[ep_index];
-        if (!ep_ring || (xdev->out_ctx->ep[ep_index].ep_info & EP_STATE_MASK) == EP_STATE_DISABLED) {
+        ep_ctx = xhci_get_ep_ctx(xhci, xdev->out_ctx, ep_index);
+        if (!ep_ring || (ep_ctx->ep_info & EP_STATE_MASK) == EP_STATE_DISABLED) {
                 xhci_err(xhci, "ERROR Transfer event pointed to disabled endpoint\n");
                 return -ENODEV;
         }
 
-        event_dma = event->buffer[0];
-        if (event->buffer[1] != 0)
-                xhci_warn(xhci, "WARN ignoring upper 32-bits of 64-bit TRB dma address\n");
-
+        event_dma = event->buffer;
         /* This TRB should be in the TD at the head of this ring's TD list */
+        xhci_dbg(xhci, "%s - checking for list empty\n", __func__);
         if (list_empty(&ep_ring->td_list)) {
                 xhci_warn(xhci, "WARN Event TRB for slot %d ep %d with no TDs queued?\n",
                                 TRB_TO_SLOT_ID(event->flags), ep_index);
@@ -785,11 +844,14 @@ static int handle_tx_event(struct xhci_hcd *xhci,
                 urb = NULL;
                 goto cleanup;
         }
+        xhci_dbg(xhci, "%s - getting list entry\n", __func__);
         td = list_entry(ep_ring->td_list.next, struct xhci_td, td_list);
 
         /* Is this a TRB in the currently executing TD? */
+        xhci_dbg(xhci, "%s - looking for TD\n", __func__);
         event_seg = trb_in_td(ep_ring->deq_seg, ep_ring->dequeue,
                         td->last_trb, event_dma);
+        xhci_dbg(xhci, "%s - found event_seg = %p\n", __func__, event_seg);
         if (!event_seg) {
                 /* HC is busted, give up! */
                 xhci_err(xhci, "ERROR Transfer event TRB DMA ptr not part of current TD\n");
@@ -798,10 +860,10 @@ static int handle_tx_event(struct xhci_hcd *xhci,
         event_trb = &event_seg->trbs[(event_dma - event_seg->dma) / sizeof(*event_trb)];
         xhci_dbg(xhci, "Event TRB with TRB type ID %u\n",
                         (unsigned int) (event->flags & TRB_TYPE_BITMASK)>>10);
-        xhci_dbg(xhci, "Offset 0x00 (buffer[0]) = 0x%x\n",
-                        (unsigned int) event->buffer[0]);
-        xhci_dbg(xhci, "Offset 0x04 (buffer[0]) = 0x%x\n",
-                        (unsigned int) event->buffer[1]);
+        xhci_dbg(xhci, "Offset 0x00 (buffer lo) = 0x%x\n",
+                        lower_32_bits(event->buffer));
+        xhci_dbg(xhci, "Offset 0x04 (buffer hi) = 0x%x\n",
+                        upper_32_bits(event->buffer));
         xhci_dbg(xhci, "Offset 0x08 (transfer length) = 0x%x\n",
                         (unsigned int) event->transfer_len);
         xhci_dbg(xhci, "Offset 0x0C (flags) = 0x%x\n",
@@ -823,6 +885,7 @@ static int handle_tx_event(struct xhci_hcd *xhci,
                 break;
         case COMP_STALL:
                 xhci_warn(xhci, "WARN: Stalled endpoint\n");
+                ep_ring->state |= EP_HALTED;
                 status = -EPIPE;
                 break;
         case COMP_TRB_ERR:
@@ -833,6 +896,10 @@ static int handle_tx_event(struct xhci_hcd *xhci,
                 xhci_warn(xhci, "WARN: transfer error on endpoint\n");
                 status = -EPROTO;
                 break;
+        case COMP_BABBLE:
+                xhci_warn(xhci, "WARN: babble error on endpoint\n");
+                status = -EOVERFLOW;
+                break;
         case COMP_DB_ERR:
                 xhci_warn(xhci, "WARN: HC couldn't access mem fast enough\n");
                 status = -ENOSR;
@@ -874,15 +941,26 @@ static int handle_tx_event(struct xhci_hcd *xhci,
                 if (event_trb != ep_ring->dequeue) {
                         /* The event was for the status stage */
                         if (event_trb == td->last_trb) {
-                                td->urb->actual_length =
-                                        td->urb->transfer_buffer_length;
+                                if (td->urb->actual_length != 0) {
+                                        /* Don't overwrite a previously set error code */
+                                        if (status == -EINPROGRESS || status == 0)
+                                                /* Did we already see a short data stage? */
+                                                status = -EREMOTEIO;
+                                } else {
+                                        td->urb->actual_length =
+                                                td->urb->transfer_buffer_length;
+                                }
                         } else {
                         /* Maybe the event was for the data stage? */
-                                if (GET_COMP_CODE(event->transfer_len) != COMP_STOP_INVAL)
+                                if (GET_COMP_CODE(event->transfer_len) != COMP_STOP_INVAL) {
                                         /* We didn't stop on a link TRB in the middle */
                                         td->urb->actual_length =
                                                 td->urb->transfer_buffer_length -
                                                 TRB_LEN(event->transfer_len);
+                                        xhci_dbg(xhci, "Waiting for status stage event\n");
+                                        urb = NULL;
+                                        goto cleanup;
+                                }
                         }
                 }
         } else {
@@ -929,16 +1007,20 @@ static int handle_tx_event(struct xhci_hcd *xhci,
                                                         TRB_LEN(event->transfer_len));
                                         td->urb->actual_length = 0;
                                 }
-                                if (td->urb->transfer_flags & URB_SHORT_NOT_OK)
-                                        status = -EREMOTEIO;
-                                else
-                                        status = 0;
+                                /* Don't overwrite a previously set error code */
+                                if (status == -EINPROGRESS) {
+                                        if (td->urb->transfer_flags & URB_SHORT_NOT_OK)
+                                                status = -EREMOTEIO;
+                                        else
+                                                status = 0;
+                                }
                         } else {
                                 td->urb->actual_length = td->urb->transfer_buffer_length;
                                 /* Ignore a short packet completion if the
                                  * untransferred length was zero.
                                  */
-                                status = 0;
+                                if (status == -EREMOTEIO)
+                                        status = 0;
                         }
                 } else {
                         /* Slow path - walk the list, starting from the dequeue
@@ -965,19 +1047,30 @@ static int handle_tx_event(struct xhci_hcd *xhci,
                                         TRB_LEN(event->transfer_len);
                 }
         }
-        /* The Endpoint Stop Command completion will take care of
-         * any stopped TDs.  A stopped TD may be restarted, so don't update the
-         * ring dequeue pointer or take this TD off any lists yet.
-         */
         if (GET_COMP_CODE(event->transfer_len) == COMP_STOP_INVAL ||
                         GET_COMP_CODE(event->transfer_len) == COMP_STOP) {
+                /* The Endpoint Stop Command completion will take care of any
+                 * stopped TDs.  A stopped TD may be restarted, so don't update
+                 * the ring dequeue pointer or take this TD off any lists yet.
+                 */
                 ep_ring->stopped_td = td;
                 ep_ring->stopped_trb = event_trb;
         } else {
-                /* Update ring dequeue pointer */
-                while (ep_ring->dequeue != td->last_trb)
+                if (GET_COMP_CODE(event->transfer_len) == COMP_STALL) {
+                        /* The transfer is completed from the driver's
+                         * perspective, but we need to issue a set dequeue
+                         * command for this stalled endpoint to move the dequeue
+                         * pointer past the TD.  We can't do that here because
+                         * the halt condition must be cleared first.
+                         */
+                        ep_ring->stopped_td = td;
+                        ep_ring->stopped_trb = event_trb;
+                } else {
+                        /* Update ring dequeue pointer */
+                        while (ep_ring->dequeue != td->last_trb)
+                                inc_deq(xhci, ep_ring, false);
                         inc_deq(xhci, ep_ring, false);
-                inc_deq(xhci, ep_ring, false);
+                }
 
                 /* Clean up the endpoint's TD list */
                 urb = td->urb;
@@ -987,7 +1080,10 @@ static int handle_tx_event(struct xhci_hcd *xhci,
                         list_del(&td->cancelled_td_list);
                         ep_ring->cancels_pending--;
                 }
-                kfree(td);
+                /* Leave the TD around for the reset endpoint function to use */
+                if (GET_COMP_CODE(event->transfer_len) != COMP_STALL) {
+                        kfree(td);
+                }
                 urb->hcpriv = NULL;
         }
 cleanup:
@@ -997,6 +1093,8 @@ cleanup:
         /* FIXME for multi-TD URBs (who have buffers bigger than 64MB) */
         if (urb) {
                 usb_hcd_unlink_urb_from_ep(xhci_to_hcd(xhci), urb);
+                xhci_dbg(xhci, "Giveback URB %p, len = %d, status = %d\n",
+                                urb, td->urb->actual_length, status);
                 spin_unlock(&xhci->lock);
                 usb_hcd_giveback_urb(xhci_to_hcd(xhci), urb, status);
                 spin_lock(&xhci->lock);
@@ -1014,6 +1112,7 @@ void xhci_handle_event(struct xhci_hcd *xhci)
         int update_ptrs = 1;
         int ret;
 
+        xhci_dbg(xhci, "In %s\n", __func__);
         if (!xhci->event_ring || !xhci->event_ring->dequeue) {
                 xhci->error_bitmask |= 1 << 1;
                 return;
@@ -1026,18 +1125,25 @@ void xhci_handle_event(struct xhci_hcd *xhci)
                 xhci->error_bitmask |= 1 << 2;
                 return;
         }
+        xhci_dbg(xhci, "%s - OS owns TRB\n", __func__);
 
         /* FIXME: Handle more event types. */
         switch ((event->event_cmd.flags & TRB_TYPE_BITMASK)) {
         case TRB_TYPE(TRB_COMPLETION):
+                xhci_dbg(xhci, "%s - calling handle_cmd_completion\n", __func__);
                 handle_cmd_completion(xhci, &event->event_cmd);
+                xhci_dbg(xhci, "%s - returned from handle_cmd_completion\n", __func__);
                 break;
         case TRB_TYPE(TRB_PORT_STATUS):
+                xhci_dbg(xhci, "%s - calling handle_port_status\n", __func__);
                 handle_port_status(xhci, event);
+                xhci_dbg(xhci, "%s - returned from handle_port_status\n", __func__);
                 update_ptrs = 0;
                 break;
         case TRB_TYPE(TRB_TRANSFER):
+                xhci_dbg(xhci, "%s - calling handle_tx_event\n", __func__);
                 ret = handle_tx_event(xhci, &event->trans_event);
+                xhci_dbg(xhci, "%s - returned from handle_tx_event\n", __func__);
                 if (ret < 0)
                         xhci->error_bitmask |= 1 << 9;
                 else
@@ -1093,13 +1199,13 @@ static int prepare_ring(struct xhci_hcd *xhci, struct xhci_ring *ep_ring,
                  */
                 xhci_warn(xhci, "WARN urb submitted to disabled ep\n");
                 return -ENOENT;
-        case EP_STATE_HALTED:
         case EP_STATE_ERROR:
-                xhci_warn(xhci, "WARN waiting for halt or error on ep "
-                                "to be cleared\n");
+                xhci_warn(xhci, "WARN waiting for error on ep to be cleared\n");
                 /* FIXME event handling code for error needs to clear it */
                 /* XXX not sure if this should be -ENOENT or not */
                 return -EINVAL;
+        case EP_STATE_HALTED:
+                xhci_dbg(xhci, "WARN halted endpoint, queueing URB anyway.\n");
         case EP_STATE_STOPPED:
         case EP_STATE_RUNNING:
                 break;
@@ -1128,9 +1234,9 @@ static int prepare_transfer(struct xhci_hcd *xhci,
                 gfp_t mem_flags)
 {
         int ret;
-
+        struct xhci_ep_ctx *ep_ctx = xhci_get_ep_ctx(xhci, xdev->out_ctx, ep_index);
         ret = prepare_ring(xhci, xdev->ep_rings[ep_index],
-                        xdev->out_ctx->ep[ep_index].ep_info & EP_STATE_MASK,
+                        ep_ctx->ep_info & EP_STATE_MASK,
                         num_trbs, mem_flags);
         if (ret)
                 return ret;
@@ -1285,6 +1391,7 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
         /* Queue the first TRB, even if it's zero-length */
         do {
                 u32 field = 0;
+                u32 length_field = 0;
 
                 /* Don't change the cycle bit of the first TRB until later */
                 if (first_trb)
@@ -1314,10 +1421,13 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
                                         (unsigned int) (addr + TRB_MAX_BUFF_SIZE) & ~(TRB_MAX_BUFF_SIZE - 1),
                                         (unsigned int) addr + trb_buff_len);
                 }
+                length_field = TRB_LEN(trb_buff_len) |
+                        TD_REMAINDER(urb->transfer_buffer_length - running_total) |
+                        TRB_INTR_TARGET(0);
                 queue_trb(xhci, ep_ring, false,
-                                (u32) addr,
-                                (u32) ((u64) addr >> 32),
-                                TRB_LEN(trb_buff_len) | TRB_INTR_TARGET(0),
+                                lower_32_bits(addr),
+                                upper_32_bits(addr),
+                                length_field,
                                 /* We always want to know if the TRB was short,
                                  * or we won't get an event when it completes.
                                  * (Unless we use event data TRBs, which are a
@@ -1365,7 +1475,7 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
         struct xhci_generic_trb *start_trb;
         bool first_trb;
         int start_cycle;
-        u32 field;
+        u32 field, length_field;
 
         int running_total, trb_buff_len, ret;
         u64 addr;
@@ -1443,10 +1553,13 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
                         td->last_trb = ep_ring->enqueue;
                         field |= TRB_IOC;
                 }
+                length_field = TRB_LEN(trb_buff_len) |
+                        TD_REMAINDER(urb->transfer_buffer_length - running_total) |
+                        TRB_INTR_TARGET(0);
                 queue_trb(xhci, ep_ring, false,
-                                (u32) addr,
-                                (u32) ((u64) addr >> 32),
-                                TRB_LEN(trb_buff_len) | TRB_INTR_TARGET(0),
+                                lower_32_bits(addr),
+                                upper_32_bits(addr),
+                                length_field,
                                 /* We always want to know if the TRB was short,
                                  * or we won't get an event when it completes.
                                  * (Unless we use event data TRBs, which are a
@@ -1478,7 +1591,7 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
         struct usb_ctrlrequest *setup;
         struct xhci_generic_trb *start_trb;
         int start_cycle;
-        u32 field;
+        u32 field, length_field;
         struct xhci_td *td;
 
         ep_ring = xhci->devs[slot_id]->ep_rings[ep_index];
@@ -1528,13 +1641,16 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 
         /* If there's data, queue data TRBs */
         field = 0;
+        length_field = TRB_LEN(urb->transfer_buffer_length) |
+                TD_REMAINDER(urb->transfer_buffer_length) |
+                TRB_INTR_TARGET(0);
         if (urb->transfer_buffer_length > 0) {
                 if (setup->bRequestType & USB_DIR_IN)
                         field |= TRB_DIR_IN;
                 queue_trb(xhci, ep_ring, false,
                                 lower_32_bits(urb->transfer_dma),
                                 upper_32_bits(urb->transfer_dma),
-                                TRB_LEN(urb->transfer_buffer_length) | TRB_INTR_TARGET(0),
+                                length_field,
                                 /* Event on short tx */
                                 field | TRB_ISP | TRB_TYPE(TRB_DATA) | ep_ring->cycle_state);
         }
@@ -1603,7 +1719,8 @@ int xhci_queue_slot_control(struct xhci_hcd *xhci, u32 trb_type, u32 slot_id)
 int xhci_queue_address_device(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr,
                 u32 slot_id)
 {
-        return queue_command(xhci, in_ctx_ptr, 0, 0,
+        return queue_command(xhci, lower_32_bits(in_ctx_ptr),
+                        upper_32_bits(in_ctx_ptr), 0,
                         TRB_TYPE(TRB_ADDR_DEV) | SLOT_ID_FOR_TRB(slot_id));
 }
 
@@ -1611,7 +1728,8 @@ int xhci_queue_address_device(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr,
 int xhci_queue_configure_endpoint(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr,
                 u32 slot_id)
 {
-        return queue_command(xhci, in_ctx_ptr, 0, 0,
+        return queue_command(xhci, lower_32_bits(in_ctx_ptr),
+                        upper_32_bits(in_ctx_ptr), 0,
                         TRB_TYPE(TRB_CONFIG_EP) | SLOT_ID_FOR_TRB(slot_id));
 }
 
@@ -1639,10 +1757,23 @@ static int queue_set_tr_deq(struct xhci_hcd *xhci, int slot_id,
         u32 type = TRB_TYPE(TRB_SET_DEQ);
 
         addr = xhci_trb_virt_to_dma(deq_seg, deq_ptr);
-        if (addr == 0)
+        if (addr == 0) {
                 xhci_warn(xhci, "WARN Cannot submit Set TR Deq Ptr\n");
                 xhci_warn(xhci, "WARN deq seg = %p, deq pt = %p\n",
                                 deq_seg, deq_ptr);
-        return queue_command(xhci, (u32) addr | cycle_state, 0, 0,
+                return 0;
+        }
+        return queue_command(xhci, lower_32_bits(addr) | cycle_state,
+                        upper_32_bits(addr), 0,
                         trb_slot_id | trb_ep_index | type);
 }
+
+int xhci_queue_reset_ep(struct xhci_hcd *xhci, int slot_id,
+                unsigned int ep_index)
+{
+        u32 trb_slot_id = SLOT_ID_FOR_TRB(slot_id);
+        u32 trb_ep_index = EP_ID_FOR_TRB(ep_index);
+        u32 type = TRB_TYPE(TRB_RESET_EP);
+
+        return queue_command(xhci, 0, 0, 0, trb_slot_id | trb_ep_index | type);
+}
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 8936eeb5588b..d31d32206ba3 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -25,6 +25,7 @@
 
 #include <linux/usb.h>
 #include <linux/timer.h>
+#include <linux/kernel.h>
 
 #include "../core/hcd.h"
 /* Code sharing between pci-quirks and xhci hcd */
@@ -42,14 +43,6 @@
  * xHCI register interface.
  * This corresponds to the eXtensible Host Controller Interface (xHCI)
  * Revision 0.95 specification
- *
- * Registers should always be accessed with double word or quad word accesses.
- *
- * Some xHCI implementations may support 64-bit address pointers.  Registers
- * with 64-bit address pointers should be written to with dword accesses by
- * writing the low dword first (ptr[0]), then the high dword (ptr[1]) second.
- * xHCI implementations that do not support 64-bit address pointers will ignore
- * the high dword, and write order is irrelevant.
  */
 
 /**
@@ -96,6 +89,7 @@ struct xhci_cap_regs {
 #define HCS_ERST_MAX(p)         (((p) >> 4) & 0xf)
 /* bit 26 Scratchpad restore - for save/restore HW state - not used yet */
 /* bits 27:31 number of Scratchpad buffers SW must allocate for the HW */
+#define HCS_MAX_SCRATCHPAD(p)   (((p) >> 27) & 0x1f)
 
 /* HCSPARAMS3 - hcs_params3 - bitmasks */
 /* bits 0:7, Max U1 to U0 latency for the roothub ports */
@@ -166,10 +160,10 @@ struct xhci_op_regs {
         u32     reserved1;
         u32     reserved2;
         u32     dev_notification;
-        u32     cmd_ring[2];
+        u64     cmd_ring;
         /* rsvd: offset 0x20-2F */
         u32     reserved3[4];
-        u32     dcbaa_ptr[2];
+        u64     dcbaa_ptr;
         u32     config_reg;
         /* rsvd: offset 0x3C-3FF */
         u32     reserved4[241];
@@ -254,7 +248,7 @@ struct xhci_op_regs {
 #define CMD_RING_RUNNING        (1 << 3)
 /* bits 4:5 reserved and should be preserved */
 /* Command Ring pointer - bit mask for the lower 32 bits. */
-#define CMD_RING_ADDR_MASK      (0xffffffc0)
+#define CMD_RING_RSVD_BITS      (0x3f)
 
 /* CONFIG - Configure Register - config_reg bitmasks */
 /* bits 0:7 - maximum number of device slots enabled (NumSlotsEn) */
@@ -382,8 +376,8 @@ struct xhci_intr_reg {
         u32     irq_control;
         u32     erst_size;
         u32     rsvd;
-        u32     erst_base[2];
-        u32     erst_dequeue[2];
+        u64     erst_base;
+        u64     erst_dequeue;
 };
 
 /* irq_pending bitmasks */
@@ -453,6 +447,27 @@ struct xhci_doorbell_array {
 
 
 /**
+ * struct xhci_container_ctx
+ * @type: Type of context.  Used to calculated offsets to contained contexts.
+ * @size: Size of the context data
+ * @bytes: The raw context data given to HW
+ * @dma: dma address of the bytes
+ *
+ * Represents either a Device or Input context.  Holds a pointer to the raw
+ * memory used for the context (bytes) and dma address of it (dma).
+ */
+struct xhci_container_ctx {
+        unsigned type;
+#define XHCI_CTX_TYPE_DEVICE  0x1
+#define XHCI_CTX_TYPE_INPUT   0x2
+
+        int size;
+
+        u8 *bytes;
+        dma_addr_t dma;
+};
+
+/**
  * struct xhci_slot_ctx
  * @dev_info:   Route string, device speed, hub info, and last valid endpoint
  * @dev_info2:  Max exit latency for device number, root hub port number
@@ -538,7 +553,7 @@ struct xhci_slot_ctx {
 struct xhci_ep_ctx {
         u32     ep_info;
         u32     ep_info2;
-        u32     deq[2];
+        u64     deq;
         u32     tx_info;
         /* offset 0x14 - 0x1f reserved for HC internal use */
         u32     reserved[3];
@@ -589,18 +604,16 @@ struct xhci_ep_ctx {
 
 
 /**
- * struct xhci_device_control
- * Input/Output context; see section 6.2.5.
+ * struct xhci_input_control_context
+ * Input control context; see section 6.2.5.
  *
  * @drop_context:       set the bit of the endpoint context you want to disable
  * @add_context:        set the bit of the endpoint context you want to enable
  */
-struct xhci_device_control {
+struct xhci_input_control_ctx {
         u32     drop_flags;
         u32     add_flags;
-        u32     rsvd[6];
-        struct xhci_slot_ctx    slot;
-        struct xhci_ep_ctx      ep[31];
+        u32     rsvd2[6];
 };
 
 /* drop context bitmasks */
@@ -608,7 +621,6 @@ struct xhci_device_control {
 /* add context bitmasks */
 #define ADD_EP(x)       (0x1 << x)
 
-
 struct xhci_virt_device {
         /*
          * Commands to the hardware are passed an "input context" that
@@ -618,11 +630,10 @@ struct xhci_virt_device {
          * track of input and output contexts separately because
          * these commands might fail and we don't trust the hardware.
          */
-        struct xhci_device_control      *out_ctx;
-        dma_addr_t                      out_ctx_dma;
+        struct xhci_container_ctx       *out_ctx;
         /* Used for addressing devices and configuration changes */
-        struct xhci_device_control      *in_ctx;
-        dma_addr_t                      in_ctx_dma;
+        struct xhci_container_ctx       *in_ctx;
+
         /* FIXME when stream support is added */
         struct xhci_ring                *ep_rings[31];
         /* Temporary storage in case the configure endpoint command fails and we
@@ -641,7 +652,7 @@ struct xhci_virt_device {
  */
 struct xhci_device_context_array {
         /* 64-bit device addresses; we only write 32-bit addresses */
-        u32                     dev_context_ptrs[2*MAX_HC_SLOTS];
+        u64                     dev_context_ptrs[MAX_HC_SLOTS];
         /* private xHCD pointers */
         dma_addr_t      dma;
 };
@@ -654,7 +665,7 @@ struct xhci_device_context_array {
 
 struct xhci_stream_ctx {
         /* 64-bit stream ring address, cycle state, and stream type */
-        u32     stream_ring[2];
+        u64     stream_ring;
         /* offset 0x14 - 0x1f reserved for HC internal use */
         u32     reserved[2];
 };
@@ -662,7 +673,7 @@ struct xhci_stream_ctx {
 
 struct xhci_transfer_event {
         /* 64-bit buffer address, or immediate data */
-        u32     buffer[2];
+        u64     buffer;
         u32     transfer_len;
         /* This field is interpreted differently based on the type of TRB */
         u32     flags;
@@ -744,7 +755,7 @@ struct xhci_transfer_event {
 
 struct xhci_link_trb {
         /* 64-bit segment pointer*/
-        u32 segment_ptr[2];
+        u64 segment_ptr;
         u32 intr_target;
         u32 control;
 };
@@ -755,7 +766,7 @@ struct xhci_link_trb {
 /* Command completion event TRB */
 struct xhci_event_cmd {
         /* Pointer to command TRB, or the value passed by the event data trb */
-        u32 cmd_trb[2];
+        u64 cmd_trb;
         u32 status;
         u32 flags;
 };
@@ -848,8 +859,8 @@ union xhci_trb {
 #define TRB_CONFIG_EP           12
 /* Evaluate Context Command */
 #define TRB_EVAL_CONTEXT        13
-/* Reset Transfer Ring Command */
-#define TRB_RESET_RING          14
+/* Reset Endpoint Command */
+#define TRB_RESET_EP            14
 /* Stop Transfer Ring Command */
 #define TRB_STOP_RING           15
 /* Set Transfer Ring Dequeue Pointer Command */
@@ -929,6 +940,7 @@ struct xhci_ring {
         unsigned int            cancels_pending;
         unsigned int            state;
 #define SET_DEQ_PENDING         (1 << 0)
+#define EP_HALTED               (1 << 1)
         /* The TRB that was last reported in a stopped endpoint ring */
         union xhci_trb          *stopped_trb;
         struct xhci_td          *stopped_td;
@@ -940,9 +952,15 @@ struct xhci_ring {
         u32                     cycle_state;
 };
 
+struct xhci_dequeue_state {
+        struct xhci_segment *new_deq_seg;
+        union xhci_trb *new_deq_ptr;
+        int new_cycle_state;
+};
+
 struct xhci_erst_entry {
         /* 64-bit event ring segment address */
-        u32     seg_addr[2];
+        u64     seg_addr;
         u32     seg_size;
         /* Set to zero */
         u32     rsvd;
@@ -957,6 +975,13 @@ struct xhci_erst {
         unsigned int            erst_size;
 };
 
+struct xhci_scratchpad {
+        u64 *sp_array;
+        dma_addr_t sp_dma;
+        void **sp_buffers;
+        dma_addr_t *sp_dma_buffers;
+};
+
 /*
  * Each segment table entry is 4*32bits long.  1K seems like an ok size:
  * (1K bytes * 8bytes/bit) / (4*32 bits) = 64 segment entries in the table,
@@ -1011,6 +1036,9 @@ struct xhci_hcd {
         struct xhci_ring        *cmd_ring;
         struct xhci_ring        *event_ring;
         struct xhci_erst        erst;
+        /* Scratchpad */
+        struct xhci_scratchpad  *scratchpad;
+
         /* slot enabling and address device helpers */
         struct completion       addr_dev;
         int slot_id;
@@ -1071,13 +1099,43 @@ static inline unsigned int xhci_readl(const struct xhci_hcd *xhci,
 static inline void xhci_writel(struct xhci_hcd *xhci,
                 const unsigned int val, __u32 __iomem *regs)
 {
-        if (!in_interrupt())
-                xhci_dbg(xhci,
-                         "`MEM_WRITE_DWORD(3'b000, 32'h%p, 32'h%0x, 4'hf);\n",
-                         regs, val);
+        xhci_dbg(xhci,
+                        "`MEM_WRITE_DWORD(3'b000, 32'h%p, 32'h%0x, 4'hf);\n",
+                        regs, val);
         writel(val, regs);
 }
 
+/*
+ * Registers should always be accessed with double word or quad word accesses.
+ *
+ * Some xHCI implementations may support 64-bit address pointers.  Registers
+ * with 64-bit address pointers should be written to with dword accesses by
+ * writing the low dword first (ptr[0]), then the high dword (ptr[1]) second.
+ * xHCI implementations that do not support 64-bit address pointers will ignore
+ * the high dword, and write order is irrelevant.
+ */
+static inline u64 xhci_read_64(const struct xhci_hcd *xhci,
+                __u64 __iomem *regs)
+{
+        __u32 __iomem *ptr = (__u32 __iomem *) regs;
+        u64 val_lo = readl(ptr);
+        u64 val_hi = readl(ptr + 1);
+        return val_lo + (val_hi << 32);
+}
+static inline void xhci_write_64(struct xhci_hcd *xhci,
+                const u64 val, __u64 __iomem *regs)
+{
+        __u32 __iomem *ptr = (__u32 __iomem *) regs;
+        u32 val_lo = lower_32_bits(val);
+        u32 val_hi = upper_32_bits(val);
+
+        xhci_dbg(xhci,
+                        "`MEM_WRITE_DWORD(3'b000, 64'h%p, 64'h%0lx, 4'hf);\n",
+                        regs, (long unsigned int) val);
+        writel(val_lo, ptr);
+        writel(val_hi, ptr + 1);
+}
+
 /* xHCI debugging */
 void xhci_print_ir_set(struct xhci_hcd *xhci, struct xhci_intr_reg *ir_set, int set_num);
 void xhci_print_registers(struct xhci_hcd *xhci);
@@ -1090,7 +1148,7 @@ void xhci_debug_ring(struct xhci_hcd *xhci, struct xhci_ring *ring);
 void xhci_dbg_erst(struct xhci_hcd *xhci, struct xhci_erst *erst);
 void xhci_dbg_cmd_ptrs(struct xhci_hcd *xhci);
 void xhci_dbg_ring_ptrs(struct xhci_hcd *xhci, struct xhci_ring *ring);
-void xhci_dbg_ctx(struct xhci_hcd *xhci, struct xhci_device_control *ctx, dma_addr_t dma, unsigned int last_ep);
+void xhci_dbg_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx, unsigned int last_ep);
 
 /* xHCI memory managment */
 void xhci_mem_cleanup(struct xhci_hcd *xhci);
@@ -1128,6 +1186,7 @@ int xhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags);
 int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status);
 int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev, struct usb_host_endpoint *ep);
 int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev, struct usb_host_endpoint *ep);
+void xhci_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep);
 int xhci_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev);
 void xhci_reset_bandwidth(struct usb_hcd *hcd, struct usb_device *udev);
 
@@ -1148,10 +1207,23 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags, struct urb *urb,
                 int slot_id, unsigned int ep_index);
 int xhci_queue_configure_endpoint(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr,
                 u32 slot_id);
+int xhci_queue_reset_ep(struct xhci_hcd *xhci, int slot_id,
+                unsigned int ep_index);
+void xhci_find_new_dequeue_state(struct xhci_hcd *xhci,
+                unsigned int slot_id, unsigned int ep_index,
+                struct xhci_td *cur_td, struct xhci_dequeue_state *state);
+void xhci_queue_new_dequeue_state(struct xhci_hcd *xhci,
+                struct xhci_ring *ep_ring, unsigned int slot_id,
+                unsigned int ep_index, struct xhci_dequeue_state *deq_state);
 
 /* xHCI roothub code */
 int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex,
                 char *buf, u16 wLength);
 int xhci_hub_status_data(struct usb_hcd *hcd, char *buf);
 
+/* xHCI contexts */
+struct xhci_input_control_ctx *xhci_get_input_control_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx);
+struct xhci_slot_ctx *xhci_get_slot_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx);
+struct xhci_ep_ctx *xhci_get_ep_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx, unsigned int ep_index);
+
 #endif /* __LINUX_XHCI_HCD_H */
diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig
index a68d91a11bee..abe3aa67ed00 100644
--- a/drivers/usb/misc/Kconfig
+++ b/drivers/usb/misc/Kconfig
@@ -220,7 +220,7 @@ config USB_IOWARRIOR
 
 config USB_TEST
         tristate "USB testing driver"
-        depends on USB && USB_DEVICEFS
+        depends on USB
         help
           This driver is for testing host controller software.  It is used
           with specialized device firmware for regression and stress testing,
diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c
index 3c5fe5cee05a..90e1a8dedfa9 100644
--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -18,6 +18,7 @@
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/sched.h>
+#include <linux/smp_lock.h>
 #include <linux/poll.h>
 #include <linux/usb/iowarrior.h>
 
diff --git a/drivers/usb/misc/rio500.c b/drivers/usb/misc/rio500.c
index deb95bb49fd1..d645f3899fe1 100644
--- a/drivers/usb/misc/rio500.c
+++ b/drivers/usb/misc/rio500.c
@@ -32,6 +32,7 @@
 #include <linux/kernel.h>
 #include <linux/signal.h>
 #include <linux/sched.h>
+#include <linux/smp_lock.h>
 #include <linux/errno.h>
 #include <linux/random.h>
 #include <linux/poll.h>
diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c
index e0ff9ccd866b..29092b8e59ce 100644
--- a/drivers/usb/misc/usblcd.c
+++ b/drivers/usb/misc/usblcd.c
@@ -16,6 +16,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/errno.h>
 #include <linux/mutex.h>
 #include <asm/uaccess.h>
diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c
index f8d9045d668a..0f7a30b7d2d1 100644
--- a/drivers/usb/mon/mon_bin.c
+++ b/drivers/usb/mon/mon_bin.c
@@ -1261,7 +1261,7 @@ static int mon_alloc_buff(struct mon_pgmap *map, int npages)
                         return -ENOMEM;
                 }
                 map[n].ptr = (unsigned char *) vaddr;
-                map[n].pg = virt_to_page(vaddr);
+                map[n].pg = virt_to_page((void *) vaddr);
         }
         return 0;
 }
diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
index 70073b157f0a..803adcb5ac1d 100644
--- a/drivers/usb/musb/Kconfig
+++ b/drivers/usb/musb/Kconfig
@@ -12,6 +12,7 @@ config USB_MUSB_HDRC
         depends on !SUPERH
         select NOP_USB_XCEIV if ARCH_DAVINCI
         select TWL4030_USB if MACH_OMAP_3430SDP
+        select NOP_USB_XCEIV if MACH_OMAP3EVM
         select USB_OTG_UTILS
         tristate 'Inventra Highspeed Dual Role Controller (TI, ADI, ...)'
         help
diff --git a/drivers/usb/musb/cppi_dma.h b/drivers/usb/musb/cppi_dma.h
index 8a39de3e6e47..59bf949e589b 100644
--- a/drivers/usb/musb/cppi_dma.h
+++ b/drivers/usb/musb/cppi_dma.h
@@ -5,7 +5,6 @@
 
 #include <linux/slab.h>
 #include <linux/list.h>
-#include <linux/smp_lock.h>
 #include <linux/errno.h>
 #include <linux/dmapool.h>
 
diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c
index 180d7daa4099..e16ff605c458 100644
--- a/drivers/usb/musb/davinci.c
+++ b/drivers/usb/musb/davinci.c
@@ -35,13 +35,14 @@
 #include <mach/hardware.h>
 #include <mach/memory.h>
 #include <mach/gpio.h>
+#include <mach/cputype.h>
 
 #include <asm/mach-types.h>
 
 #include "musb_core.h"
 
 #ifdef CONFIG_MACH_DAVINCI_EVM
-#define GPIO_nVBUS_DRV          87
+#define GPIO_nVBUS_DRV          144
 #endif
 
 #include "davinci.h"
@@ -329,7 +330,6 @@ static irqreturn_t davinci_interrupt(int irq, void *__hci)
                         mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
                         WARNING("VBUS error workaround (delay coming)\n");
                 } else if (is_host_enabled(musb) && drvvbus) {
-                        musb->is_active = 1;
                         MUSB_HST_MODE(musb);
                         musb->xceiv->default_a = 1;
                         musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
@@ -343,7 +343,9 @@ static irqreturn_t davinci_interrupt(int irq, void *__hci)
                         portstate(musb->port1_status &= ~USB_PORT_STAT_POWER);
                 }
 
-                /* NOTE:  this must complete poweron within 100 msec */
+                /* NOTE:  this must complete poweron within 100 msec
+                 * (OTG_TIME_A_WAIT_VRISE) but we don't check for that.
+                 */
                 davinci_source_power(musb, drvvbus, 0);
                 DBG(2, "VBUS %s (%s)%s, devctl %02x\n",
                                 drvvbus ? "on" : "off",
@@ -411,6 +413,21 @@ int __init musb_platform_init(struct musb *musb)
                 __raw_writel(phy_ctrl, USB_PHY_CTRL);
         }
 
+        /* On dm355, the default-A state machine needs DRVVBUS control.
+         * If we won't be a host, there's no need to turn it on.
+         */
+        if (cpu_is_davinci_dm355()) {
+                u32     deepsleep = __raw_readl(DM355_DEEPSLEEP);
+
+                if (is_host_enabled(musb)) {
+                        deepsleep &= ~DRVVBUS_OVERRIDE;
+                } else {
+                        deepsleep &= ~DRVVBUS_FORCE;
+                        deepsleep |= DRVVBUS_OVERRIDE;
+                }
+                __raw_writel(deepsleep, DM355_DEEPSLEEP);
+        }
+
         /* reset the controller */
         musb_writel(tibase, DAVINCI_USB_CTRL_REG, 0x1);
 
@@ -437,6 +454,15 @@ int musb_platform_exit(struct musb *musb)
         if (is_host_enabled(musb))
                 del_timer_sync(&otg_workaround);
 
+        /* force VBUS off */
+        if (cpu_is_davinci_dm355()) {
+                u32     deepsleep = __raw_readl(DM355_DEEPSLEEP);
+
+                deepsleep &= ~DRVVBUS_FORCE;
+                deepsleep |= DRVVBUS_OVERRIDE;
+                __raw_writel(deepsleep, DM355_DEEPSLEEP);
+        }
+
         davinci_source_power(musb, 0 /*off*/, 1);
 
         /* delay, to avoid problems with module reload */
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 554a414f65d1..c7c1ca0494cd 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1326,7 +1326,6 @@ static int __init musb_core_init(u16 musb_type, struct musb *musb)
         int             i;
 
         /* log core options (read using indexed model) */
-        musb_ep_select(mbase, 0);
         reg = musb_read_configdata(mbase);
 
         strcpy(aInfo, (reg & MUSB_CONFIGDATA_UTMIDW) ? "UTMI-16" : "UTMI-8");
@@ -1990,7 +1989,7 @@ bad_config:
         if (status < 0)
                 goto fail2;
 
-#ifdef CONFIG_USB_OTG
+#ifdef CONFIG_USB_MUSB_OTG
         setup_timer(&musb->otg_timer, musb_otg_timer_func, (unsigned long) musb);
 #endif
 
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index f3772ca3b2cf..381d648a36b8 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -38,7 +38,6 @@
 #include <linux/slab.h>
 #include <linux/list.h>
 #include <linux/interrupt.h>
-#include <linux/smp_lock.h>
 #include <linux/errno.h>
 #include <linux/timer.h>
 #include <linux/clk.h>
diff --git a/drivers/usb/musb/musb_gadget_ep0.c b/drivers/usb/musb/musb_gadget_ep0.c
index 40ed50ecedff..7a6778675ad3 100644
--- a/drivers/usb/musb/musb_gadget_ep0.c
+++ b/drivers/usb/musb/musb_gadget_ep0.c
@@ -407,7 +407,7 @@ stall:
                                         csr |= MUSB_RXCSR_P_SENDSTALL
                                                 | MUSB_RXCSR_FLUSHFIFO
                                                 | MUSB_RXCSR_CLRDATATOG
-                                                | MUSB_TXCSR_P_WZC_BITS;
+                                                | MUSB_RXCSR_P_WZC_BITS;
                                         musb_writew(regs, MUSB_RXCSR,
                                                         csr);
                                 }
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 94a2a350a414..cf94511485f2 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -373,7 +373,7 @@ static void musb_advance_schedule(struct musb *musb, struct urb *urb,
                 musb_save_toggle(qh, is_in, urb);
                 break;
         case USB_ENDPOINT_XFER_ISOC:
-                if (urb->error_count)
+                if (status == 0 && urb->error_count)
                         status = -EXDEV;
                 break;
         }
@@ -2235,13 +2235,30 @@ static void musb_h_stop(struct usb_hcd *hcd)
 static int musb_bus_suspend(struct usb_hcd *hcd)
 {
         struct musb     *musb = hcd_to_musb(hcd);
+        u8              devctl;
 
-        if (musb->xceiv->state == OTG_STATE_A_SUSPEND)
+        if (!is_host_active(musb))
                 return 0;
 
-        if (is_host_active(musb) && musb->is_active) {
-                WARNING("trying to suspend as %s is_active=%i\n",
-                        otg_state_string(musb), musb->is_active);
+        switch (musb->xceiv->state) {
+        case OTG_STATE_A_SUSPEND:
+                return 0;
+        case OTG_STATE_A_WAIT_VRISE:
+                /* ID could be grounded even if there's no device
+                 * on the other end of the cable.  NOTE that the
+                 * A_WAIT_VRISE timers are messy with MUSB...
+                 */
+                devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
+                if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS)
+                        musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+                break;
+        default:
+                break;
+        }
+
+        if (musb->is_active) {
+                WARNING("trying to suspend as %s while active\n",
+                                otg_state_string(musb));
                 return -EBUSY;
         } else
                 return 0;
diff --git a/drivers/usb/musb/musb_regs.h b/drivers/usb/musb/musb_regs.h
index de3b2f18db44..fbfd3fd9ce1f 100644
--- a/drivers/usb/musb/musb_regs.h
+++ b/drivers/usb/musb/musb_regs.h
@@ -323,6 +323,7 @@ static inline void  musb_write_rxfifoadd(void __iomem *mbase, u16 c_off)
 
 static inline u8 musb_read_configdata(void __iomem *mbase)
 {
+        musb_writeb(mbase, MUSB_INDEX, 0);
         return musb_readb(mbase, 0x10 + MUSB_CONFIGDATA);
 }
 
diff --git a/drivers/usb/otg/Kconfig b/drivers/usb/otg/Kconfig
index 69feeec1628c..aa884d072f0b 100644
--- a/drivers/usb/otg/Kconfig
+++ b/drivers/usb/otg/Kconfig
@@ -59,18 +59,4 @@ config NOP_USB_XCEIV
          built-in with usb ip or which are autonomous and doesn't require any
          phy programming such as ISP1x04 etc.
 
-config USB_LANGWELL_OTG
-        tristate "Intel Langwell USB OTG dual-role support"
-        depends on USB && MRST
-        select USB_OTG
-        select USB_OTG_UTILS
-        help
-          Say Y here if you want to build Intel Langwell USB OTG
-          transciever driver in kernel. This driver implements role
-          switch between EHCI host driver and Langwell USB OTG
-          client driver.
-
-          To compile this driver as a module, choose M here: the
-          module will be called langwell_otg.
-
 endif # USB || OTG
diff --git a/drivers/usb/otg/Makefile b/drivers/usb/otg/Makefile
index 6d1abdd3c0ac..208167856529 100644
--- a/drivers/usb/otg/Makefile
+++ b/drivers/usb/otg/Makefile
@@ -9,7 +9,6 @@ obj-$(CONFIG_USB_OTG_UTILS)	+= otg.o
 obj-$(CONFIG_USB_GPIO_VBUS)     += gpio_vbus.o
 obj-$(CONFIG_ISP1301_OMAP)      += isp1301_omap.o
 obj-$(CONFIG_TWL4030_USB)       += twl4030-usb.o
-obj-$(CONFIG_USB_LANGWELL_OTG)  += langwell_otg.o
 obj-$(CONFIG_NOP_USB_XCEIV)     += nop-usb-xceiv.o
 
 ccflags-$(CONFIG_USB_DEBUG)     += -DDEBUG
diff --git a/drivers/usb/otg/langwell_otg.c b/drivers/usb/otg/langwell_otg.c
deleted file mode 100644
index 6f628d0e9f39..000000000000
--- a/drivers/usb/otg/langwell_otg.c
+++ /dev/null
@@ -1,1915 +0,0 @@
-/*
- * Intel Langwell USB OTG transceiver driver
- * Copyright (C) 2008 - 2009, Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-/* This driver helps to switch Langwell OTG controller function between host
- * and peripheral. It works with EHCI driver and Langwell client controller
- * driver together.
- */
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/device.h>
-#include <linux/moduleparam.h>
-#include <linux/usb/ch9.h>
-#include <linux/usb/gadget.h>
-#include <linux/usb.h>
-#include <linux/usb/otg.h>
-#include <linux/notifier.h>
-#include <asm/ipc_defs.h>
-#include <linux/delay.h>
-#include "../core/hcd.h"
-
-#include <linux/usb/langwell_otg.h>
-
-#define DRIVER_DESC             "Intel Langwell USB OTG transceiver driver"
-#define DRIVER_VERSION          "3.0.0.32L.0002"
-
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_AUTHOR("Henry Yuan <hang.yuan@intel.com>, Hao Wu <hao.wu@intel.com>");
-MODULE_VERSION(DRIVER_VERSION);
-MODULE_LICENSE("GPL");
-
-static const char driver_name[] = "langwell_otg";
-
-static int langwell_otg_probe(struct pci_dev *pdev,
-                        const struct pci_device_id *id);
-static void langwell_otg_remove(struct pci_dev *pdev);
-static int langwell_otg_suspend(struct pci_dev *pdev, pm_message_t message);
-static int langwell_otg_resume(struct pci_dev *pdev);
-
-static int langwell_otg_set_host(struct otg_transceiver *otg,
-                                struct usb_bus *host);
-static int langwell_otg_set_peripheral(struct otg_transceiver *otg,
-                                struct usb_gadget *gadget);
-static int langwell_otg_start_srp(struct otg_transceiver *otg);
-
-static const struct pci_device_id pci_ids[] = {{
-        .class =        ((PCI_CLASS_SERIAL_USB << 8) | 0xfe),
-        .class_mask =   ~0,
-        .vendor =       0x8086,
-        .device =       0x0811,
-        .subvendor =    PCI_ANY_ID,
-        .subdevice =    PCI_ANY_ID,
-}, { /* end: all zeroes */ }
-};
-
-static struct pci_driver otg_pci_driver = {
-        .name =         (char *) driver_name,
-        .id_table =     pci_ids,
-
-        .probe =        langwell_otg_probe,
-        .remove =       langwell_otg_remove,
-
-        .suspend =      langwell_otg_suspend,
-        .resume =       langwell_otg_resume,
-};
-
-static const char *state_string(enum usb_otg_state state)
-{
-        switch (state) {
-        case OTG_STATE_A_IDLE:
-                return "a_idle";
-        case OTG_STATE_A_WAIT_VRISE:
-                return "a_wait_vrise";
-        case OTG_STATE_A_WAIT_BCON:
-                return "a_wait_bcon";
-        case OTG_STATE_A_HOST:
-                return "a_host";
-        case OTG_STATE_A_SUSPEND:
-                return "a_suspend";
-        case OTG_STATE_A_PERIPHERAL:
-                return "a_peripheral";
-        case OTG_STATE_A_WAIT_VFALL:
-                return "a_wait_vfall";
-        case OTG_STATE_A_VBUS_ERR:
-                return "a_vbus_err";
-        case OTG_STATE_B_IDLE:
-                return "b_idle";
-        case OTG_STATE_B_SRP_INIT:
-                return "b_srp_init";
-        case OTG_STATE_B_PERIPHERAL:
-                return "b_peripheral";
-        case OTG_STATE_B_WAIT_ACON:
-                return "b_wait_acon";
-        case OTG_STATE_B_HOST:
-                return "b_host";
-        default:
-                return "UNDEFINED";
-        }
-}
-
-/* HSM timers */
-static inline struct langwell_otg_timer *otg_timer_initializer
-(void (*function)(unsigned long), unsigned long expires, unsigned long data)
-{
-        struct langwell_otg_timer *timer;
-        timer = kmalloc(sizeof(struct langwell_otg_timer), GFP_KERNEL);
-        timer->function = function;
-        timer->expires = expires;
-        timer->data = data;
-        return timer;
-}
-
-static struct langwell_otg_timer *a_wait_vrise_tmr, *a_wait_bcon_tmr,
-        *a_aidl_bdis_tmr, *b_ase0_brst_tmr, *b_se0_srp_tmr, *b_srp_res_tmr,
-        *b_bus_suspend_tmr;
-
-static struct list_head active_timers;
-
-static struct langwell_otg *the_transceiver;
-
-/* host/client notify transceiver when event affects HNP state */
-void langwell_update_transceiver()
-{
-        otg_dbg("transceiver driver is notified\n");
-        queue_work(the_transceiver->qwork, &the_transceiver->work);
-}
-EXPORT_SYMBOL(langwell_update_transceiver);
-
-static int langwell_otg_set_host(struct otg_transceiver *otg,
-                                        struct usb_bus *host)
-{
-        otg->host = host;
-
-        return 0;
-}
-
-static int langwell_otg_set_peripheral(struct otg_transceiver *otg,
-                                        struct usb_gadget *gadget)
-{
-        otg->gadget = gadget;
-
-        return 0;
-}
-
-static int langwell_otg_set_power(struct otg_transceiver *otg,
-                                unsigned mA)
-{
-        return 0;
-}
-
-/* A-device drives vbus, controlled through PMIC CHRGCNTL register*/
-static void langwell_otg_drv_vbus(int on)
-{
-        struct ipc_pmic_reg_data        pmic_data = {0};
-        struct ipc_pmic_reg_data        battery_data;
-
-        /* Check if battery is attached or not */
-        battery_data.pmic_reg_data[0].register_address = 0xd2;
-        battery_data.ioc = 0;
-        battery_data.num_entries = 1;
-        if (ipc_pmic_register_read(&battery_data)) {
-                otg_dbg("Failed to read PMIC register 0xd2.\n");
-                return;
-        }
-
-        if ((battery_data.pmic_reg_data[0].value & 0x20) == 0) {
-                otg_dbg("no battery attached\n");
-                return;
-        }
-
-        /* Workaround for battery attachment issue */
-        if (battery_data.pmic_reg_data[0].value == 0x34) {
-                otg_dbg("battery \n");
-                return;
-        }
-
-        otg_dbg("battery attached\n");
-
-        pmic_data.ioc = 0;
-        pmic_data.pmic_reg_data[0].register_address = 0xD4;
-        pmic_data.num_entries = 1;
-        if (on)
-                pmic_data.pmic_reg_data[0].value = 0x20;
-        else
-                pmic_data.pmic_reg_data[0].value = 0xc0;
-
-        if (ipc_pmic_register_write(&pmic_data, TRUE))
-                otg_dbg("Failed to write PMIC.\n");
-
-}
-
-/* charge vbus or discharge vbus through a resistor to ground */
-static void langwell_otg_chrg_vbus(int on)
-{
-
-        u32     val;
-
-        val = readl(the_transceiver->regs + CI_OTGSC);
-
-        if (on)
-                writel((val & ~OTGSC_INTSTS_MASK) | OTGSC_VC,
-                                the_transceiver->regs + CI_OTGSC);
-        else
-                writel((val & ~OTGSC_INTSTS_MASK) | OTGSC_VD,
-                                the_transceiver->regs + CI_OTGSC);
-
-}
-
-/* Start SRP */
-static int langwell_otg_start_srp(struct otg_transceiver *otg)
-{
-        u32     val;
-
-        otg_dbg("Start SRP ->\n");
-
-        val = readl(the_transceiver->regs + CI_OTGSC);
-
-        writel((val & ~OTGSC_INTSTS_MASK) | OTGSC_HADP,
-                the_transceiver->regs + CI_OTGSC);
-
-        /* Check if the data plus is finished or not */
-        msleep(8);
-        val = readl(the_transceiver->regs + CI_OTGSC);
-        if (val & (OTGSC_HADP | OTGSC_DP))
-                otg_dbg("DataLine SRP Error\n");
-
-        /* FIXME: VBus SRP */
-
-        return 0;
-}
-
-
-/* stop SOF via bus_suspend */
-static void langwell_otg_loc_sof(int on)
-{
-        struct usb_hcd  *hcd;
-        int             err;
-
-        otg_dbg("loc_sof -> %d\n", on);
-
-        hcd = bus_to_hcd(the_transceiver->otg.host);
-        if (on)
-                err = hcd->driver->bus_resume(hcd);
-        else
-                err = hcd->driver->bus_suspend(hcd);
-
-        if (err)
-                otg_dbg("Failed to resume/suspend bus - %d\n", err);
-}
-
-static void langwell_otg_phy_low_power(int on)
-{
-        u32     val;
-
-        otg_dbg("phy low power mode-> %d\n", on);
-
-        val = readl(the_transceiver->regs + CI_HOSTPC1);
-        if (on)
-                writel(val | HOSTPC1_PHCD, the_transceiver->regs + CI_HOSTPC1);
-        else
-                writel(val & ~HOSTPC1_PHCD, the_transceiver->regs + CI_HOSTPC1);
-}
-
-/* Enable/Disable OTG interrupt */
-static void langwell_otg_intr(int on)
-{
-        u32 val;
-
-        otg_dbg("interrupt -> %d\n", on);
-
-        val = readl(the_transceiver->regs + CI_OTGSC);
-        if (on) {
-                val = val | (OTGSC_INTEN_MASK | OTGSC_IDPU);
-                writel(val, the_transceiver->regs + CI_OTGSC);
-        } else {
-                val = val & ~(OTGSC_INTEN_MASK | OTGSC_IDPU);
-                writel(val, the_transceiver->regs + CI_OTGSC);
-        }
-}
-
-/* set HAAR: Hardware Assist Auto-Reset */
-static void langwell_otg_HAAR(int on)
-{
-        u32     val;
-
-        otg_dbg("HAAR -> %d\n", on);
-
-        val = readl(the_transceiver->regs + CI_OTGSC);
-        if (on)
-                writel((val & ~OTGSC_INTSTS_MASK) | OTGSC_HAAR,
-                                the_transceiver->regs + CI_OTGSC);
-        else
-                writel((val & ~OTGSC_INTSTS_MASK) & ~OTGSC_HAAR,
-                                the_transceiver->regs + CI_OTGSC);
-}
-
-/* set HABA: Hardware Assist B-Disconnect to A-Connect */
-static void langwell_otg_HABA(int on)
-{
-        u32     val;
-
-        otg_dbg("HABA -> %d\n", on);
-
-        val = readl(the_transceiver->regs + CI_OTGSC);
-        if (on)
-                writel((val & ~OTGSC_INTSTS_MASK) | OTGSC_HABA,
-                                the_transceiver->regs + CI_OTGSC);
-        else
-                writel((val & ~OTGSC_INTSTS_MASK) & ~OTGSC_HABA,
-                                the_transceiver->regs + CI_OTGSC);
-}
-
-static int langwell_otg_check_se0_srp(int on)
-{
-        u32 val;
-
-        int delay_time = TB_SE0_SRP * 10; /* step is 100us */
-
-        otg_dbg("check_se0_srp -> \n");
-
-        do {
-                udelay(100);
-                if (!delay_time--)
-                        break;
-                val = readl(the_transceiver->regs + CI_PORTSC1);
-                val &= PORTSC_LS;
-        } while (!val);
-
-        otg_dbg("check_se0_srp <- \n");
-        return val;
-}
-
-/* The timeout callback function to set time out bit */
-static void set_tmout(unsigned long indicator)
-{
-        *(int *)indicator = 1;
-}
-
-void langwell_otg_nsf_msg(unsigned long indicator)
-{
-        switch (indicator) {
-        case 2:
-        case 4:
-        case 6:
-        case 7:
-                printk(KERN_ERR "OTG:NSF-%lu - deivce not responding\n",
-                                indicator);
-                break;
-        case 3:
-                printk(KERN_ERR "OTG:NSF-%lu - deivce not supported\n",
-                                indicator);
-                break;
-        default:
-                printk(KERN_ERR "Do not have this kind of NSF\n");
-                break;
-        }
-}
-
-/* Initialize timers */
-static void langwell_otg_init_timers(struct otg_hsm *hsm)
-{
-        /* HSM used timers */
-        a_wait_vrise_tmr = otg_timer_initializer(&set_tmout, TA_WAIT_VRISE,
-                                (unsigned long)&hsm->a_wait_vrise_tmout);
-        a_wait_bcon_tmr = otg_timer_initializer(&set_tmout, TA_WAIT_BCON,
-                                (unsigned long)&hsm->a_wait_bcon_tmout);
-        a_aidl_bdis_tmr = otg_timer_initializer(&set_tmout, TA_AIDL_BDIS,
-                                (unsigned long)&hsm->a_aidl_bdis_tmout);
-        b_ase0_brst_tmr = otg_timer_initializer(&set_tmout, TB_ASE0_BRST,
-                                (unsigned long)&hsm->b_ase0_brst_tmout);
-        b_se0_srp_tmr = otg_timer_initializer(&set_tmout, TB_SE0_SRP,
-                                (unsigned long)&hsm->b_se0_srp);
-        b_srp_res_tmr = otg_timer_initializer(&set_tmout, TB_SRP_RES,
-                                (unsigned long)&hsm->b_srp_res_tmout);
-        b_bus_suspend_tmr = otg_timer_initializer(&set_tmout, TB_BUS_SUSPEND,
-                                (unsigned long)&hsm->b_bus_suspend_tmout);
-}
-
-/* Free timers */
-static void langwell_otg_free_timers(void)
-{
-        kfree(a_wait_vrise_tmr);
-        kfree(a_wait_bcon_tmr);
-        kfree(a_aidl_bdis_tmr);
-        kfree(b_ase0_brst_tmr);
-        kfree(b_se0_srp_tmr);
-        kfree(b_srp_res_tmr);
-        kfree(b_bus_suspend_tmr);
-}
-
-/* Add timer to timer list */
-static void langwell_otg_add_timer(void *gtimer)
-{
-        struct langwell_otg_timer *timer = (struct langwell_otg_timer *)gtimer;
-        struct langwell_otg_timer *tmp_timer;
-        u32     val32;
-
-        /* Check if the timer is already in the active list,
-         * if so update timer count
-         */
-        list_for_each_entry(tmp_timer, &active_timers, list)
-                if (tmp_timer == timer) {
-                        timer->count = timer->expires;
-                        return;
-                }
-        timer->count = timer->expires;
-
-        if (list_empty(&active_timers)) {
-                val32 = readl(the_transceiver->regs + CI_OTGSC);
-                writel(val32 | OTGSC_1MSE, the_transceiver->regs + CI_OTGSC);
-        }
-
-        list_add_tail(&timer->list, &active_timers);
-}
-
-/* Remove timer from the timer list; clear timeout status */
-static void langwell_otg_del_timer(void *gtimer)
-{
-        struct langwell_otg_timer *timer = (struct langwell_otg_timer *)gtimer;
-        struct langwell_otg_timer *tmp_timer, *del_tmp;
-        u32 val32;
-
-        list_for_each_entry_safe(tmp_timer, del_tmp, &active_timers, list)
-                if (tmp_timer == timer)
-                        list_del(&timer->list);
-
-        if (list_empty(&active_timers)) {
-                val32 = readl(the_transceiver->regs + CI_OTGSC);
-                writel(val32 & ~OTGSC_1MSE, the_transceiver->regs + CI_OTGSC);
-        }
-}
-
-/* Reduce timer count by 1, and find timeout conditions.*/
-static int langwell_otg_tick_timer(u32 *int_sts)
-{
-        struct langwell_otg_timer *tmp_timer, *del_tmp;
-        int expired = 0;
-
-        list_for_each_entry_safe(tmp_timer, del_tmp, &active_timers, list) {
-                tmp_timer->count--;
-                /* check if timer expires */
-                if (!tmp_timer->count) {
-                        list_del(&tmp_timer->list);
-                        tmp_timer->function(tmp_timer->data);
-                        expired = 1;
-                }
-        }
-
-        if (list_empty(&active_timers)) {
-                otg_dbg("tick timer: disable 1ms int\n");
-                *int_sts = *int_sts & ~OTGSC_1MSE;
-        }
-        return expired;
-}
-
-static void reset_otg(void)
-{
-        u32     val;
-        int     delay_time = 1000;
-
-        otg_dbg("reseting OTG controller ...\n");
-        val = readl(the_transceiver->regs + CI_USBCMD);
-        writel(val | USBCMD_RST, the_transceiver->regs + CI_USBCMD);
-        do {
-                udelay(100);
-                if (!delay_time--)
-                        otg_dbg("reset timeout\n");
-                val = readl(the_transceiver->regs + CI_USBCMD);
-                val &= USBCMD_RST;
-        } while (val != 0);
-        otg_dbg("reset done.\n");
-}
-
-static void set_host_mode(void)
-{
-        u32     val;
-
-        reset_otg();
-        val = readl(the_transceiver->regs + CI_USBMODE);
-        val = (val & (~USBMODE_CM)) | USBMODE_HOST;
-        writel(val, the_transceiver->regs + CI_USBMODE);
-}
-
-static void set_client_mode(void)
-{
-        u32     val;
-
-        reset_otg();
-        val = readl(the_transceiver->regs + CI_USBMODE);
-        val = (val & (~USBMODE_CM)) | USBMODE_DEVICE;
-        writel(val, the_transceiver->regs + CI_USBMODE);
-}
-
-static void init_hsm(void)
-{
-        struct langwell_otg     *langwell = the_transceiver;
-        u32                     val32;
-
-        /* read OTGSC after reset */
-        val32 = readl(langwell->regs + CI_OTGSC);
-        otg_dbg("%s: OTGSC init value = 0x%x\n", __func__, val32);
-
-        /* set init state */
-        if (val32 & OTGSC_ID) {
-                langwell->hsm.id = 1;
-                langwell->otg.default_a = 0;
-                set_client_mode();
-                langwell->otg.state = OTG_STATE_B_IDLE;
-                langwell_otg_drv_vbus(0);
-        } else {
-                langwell->hsm.id = 0;
-                langwell->otg.default_a = 1;
-                set_host_mode();
-                langwell->otg.state = OTG_STATE_A_IDLE;
-        }
-
-        /* set session indicator */
-        if (val32 & OTGSC_BSE)
-                langwell->hsm.b_sess_end = 1;
-        if (val32 & OTGSC_BSV)
-                langwell->hsm.b_sess_vld = 1;
-        if (val32 & OTGSC_ASV)
-                langwell->hsm.a_sess_vld = 1;
-        if (val32 & OTGSC_AVV)
-                langwell->hsm.a_vbus_vld = 1;
-
-        /* defautly power the bus */
-        langwell->hsm.a_bus_req = 1;
-        langwell->hsm.a_bus_drop = 0;
-        /* defautly don't request bus as B device */
-        langwell->hsm.b_bus_req = 0;
-        /* no system error */
-        langwell->hsm.a_clr_err = 0;
-}
-
-static irqreturn_t otg_dummy_irq(int irq, void *_dev)
-{
-        void __iomem    *reg_base = _dev;
-        u32     val;
-        u32     int_mask = 0;
-
-        val = readl(reg_base + CI_USBMODE);
-        if ((val & USBMODE_CM) != USBMODE_DEVICE)
-                return IRQ_NONE;
-
-        val = readl(reg_base + CI_USBSTS);
-        int_mask = val & INTR_DUMMY_MASK;
-
-        if (int_mask == 0)
-                return IRQ_NONE;
-
-        /* clear hsm.b_conn here since host driver can't detect it
-        *  otg_dummy_irq called means B-disconnect happened.
-        */
-        if (the_transceiver->hsm.b_conn) {
-                the_transceiver->hsm.b_conn = 0;
-                if (spin_trylock(&the_transceiver->wq_lock)) {
-                        queue_work(the_transceiver->qwork,
-                                &the_transceiver->work);
-                        spin_unlock(&the_transceiver->wq_lock);
-                }
-        }
-        /* Clear interrupts */
-        writel(int_mask, reg_base + CI_USBSTS);
-        return IRQ_HANDLED;
-}
-
-static irqreturn_t otg_irq(int irq, void *_dev)
-{
-        struct  langwell_otg *langwell = _dev;
-        u32     int_sts, int_en;
-        u32     int_mask = 0;
-        int     flag = 0;
-
-        int_sts = readl(langwell->regs + CI_OTGSC);
-        int_en = (int_sts & OTGSC_INTEN_MASK) >> 8;
-        int_mask = int_sts & int_en;
-        if (int_mask == 0)
-                return IRQ_NONE;
-
-        if (int_mask & OTGSC_IDIS) {
-                otg_dbg("%s: id change int\n", __func__);
-                langwell->hsm.id = (int_sts & OTGSC_ID) ? 1 : 0;
-                flag = 1;
-        }
-        if (int_mask & OTGSC_DPIS) {
-                otg_dbg("%s: data pulse int\n", __func__);
-                langwell->hsm.a_srp_det = (int_sts & OTGSC_DPS) ? 1 : 0;
-                flag = 1;
-        }
-        if (int_mask & OTGSC_BSEIS) {
-                otg_dbg("%s: b session end int\n", __func__);
-                langwell->hsm.b_sess_end = (int_sts & OTGSC_BSE) ? 1 : 0;
-                flag = 1;
-        }
-        if (int_mask & OTGSC_BSVIS) {
-                otg_dbg("%s: b session valid int\n", __func__);
-                langwell->hsm.b_sess_vld = (int_sts & OTGSC_BSV) ? 1 : 0;
-                flag = 1;
-        }
-        if (int_mask & OTGSC_ASVIS) {
-                otg_dbg("%s: a session valid int\n", __func__);
-                langwell->hsm.a_sess_vld = (int_sts & OTGSC_ASV) ? 1 : 0;
-                flag = 1;
-        }
-        if (int_mask & OTGSC_AVVIS) {
-                otg_dbg("%s: a vbus valid int\n", __func__);
-                langwell->hsm.a_vbus_vld = (int_sts & OTGSC_AVV) ? 1 : 0;
-                flag = 1;
-        }
-
-        if (int_mask & OTGSC_1MSS) {
-                /* need to schedule otg_work if any timer is expired */
-                if (langwell_otg_tick_timer(&int_sts))
-                        flag = 1;
-        }
-
-        writel((int_sts & ~OTGSC_INTSTS_MASK) | int_mask,
-                        langwell->regs + CI_OTGSC);
-        if (flag)
-                queue_work(langwell->qwork, &langwell->work);
-
-        return IRQ_HANDLED;
-}
-
-static void langwell_otg_work(struct work_struct *work)
-{
-        struct langwell_otg *langwell = container_of(work,
-                                        struct langwell_otg, work);
-        int     retval;
-
-        otg_dbg("%s: old state = %s\n", __func__,
-                        state_string(langwell->otg.state));
-
-        switch (langwell->otg.state) {
-        case OTG_STATE_UNDEFINED:
-        case OTG_STATE_B_IDLE:
-                if (!langwell->hsm.id) {
-                        langwell_otg_del_timer(b_srp_res_tmr);
-                        langwell->otg.default_a = 1;
-                        langwell->hsm.a_srp_det = 0;
-
-                        langwell_otg_chrg_vbus(0);
-                        langwell_otg_drv_vbus(0);
-
-                        set_host_mode();
-                        langwell->otg.state = OTG_STATE_A_IDLE;
-                        queue_work(langwell->qwork, &langwell->work);
-                } else if (langwell->hsm.b_srp_res_tmout) {
-                        langwell->hsm.b_srp_res_tmout = 0;
-                        langwell->hsm.b_bus_req = 0;
-                        langwell_otg_nsf_msg(6);
-                } else if (langwell->hsm.b_sess_vld) {
-                        langwell_otg_del_timer(b_srp_res_tmr);
-                        langwell->hsm.b_sess_end = 0;
-                        langwell->hsm.a_bus_suspend = 0;
-
-                        langwell_otg_chrg_vbus(0);
-                        if (langwell->client_ops) {
-                                langwell->client_ops->resume(langwell->pdev);
-                                langwell->otg.state = OTG_STATE_B_PERIPHERAL;
-                        } else
-                                otg_dbg("client driver not loaded.\n");
-
-                } else if (langwell->hsm.b_bus_req &&
-                                (langwell->hsm.b_sess_end)) {
-                        /* workaround for b_se0_srp detection */
-                        retval = langwell_otg_check_se0_srp(0);
-                        if (retval) {
-                                langwell->hsm.b_bus_req = 0;
-                                otg_dbg("LS is not SE0, try again later\n");
-                        } else {
-                                /* Start SRP */
-                                langwell_otg_start_srp(&langwell->otg);
-                                langwell_otg_add_timer(b_srp_res_tmr);
-                        }
-                }
-                break;
-        case OTG_STATE_B_SRP_INIT:
-                if (!langwell->hsm.id) {
-                        langwell->otg.default_a = 1;
-                        langwell->hsm.a_srp_det = 0;
-
-                        langwell_otg_drv_vbus(0);
-                        langwell_otg_chrg_vbus(0);
-
-                        langwell->otg.state = OTG_STATE_A_IDLE;
-                        queue_work(langwell->qwork, &langwell->work);
-                } else if (langwell->hsm.b_sess_vld) {
-                        langwell_otg_chrg_vbus(0);
-                        if (langwell->client_ops) {
-                                langwell->client_ops->resume(langwell->pdev);
-                                langwell->otg.state = OTG_STATE_B_PERIPHERAL;
-                        } else
-                                otg_dbg("client driver not loaded.\n");
-                }
-                break;
-        case OTG_STATE_B_PERIPHERAL:
-                if (!langwell->hsm.id) {
-                        langwell->otg.default_a = 1;
-                        langwell->hsm.a_srp_det = 0;
-
-                        langwell_otg_drv_vbus(0);
-                        langwell_otg_chrg_vbus(0);
-                        set_host_mode();
-
-                        if (langwell->client_ops) {
-                                langwell->client_ops->suspend(langwell->pdev,
-                                        PMSG_FREEZE);
-                        } else
-                                otg_dbg("client driver has been removed.\n");
-
-                        langwell->otg.state = OTG_STATE_A_IDLE;
-                        queue_work(langwell->qwork, &langwell->work);
-                } else if (!langwell->hsm.b_sess_vld) {
-                        langwell->hsm.b_hnp_enable = 0;
-
-                        if (langwell->client_ops) {
-                                langwell->client_ops->suspend(langwell->pdev,
-                                        PMSG_FREEZE);
-                        } else
-                                otg_dbg("client driver has been removed.\n");
-
-                        langwell->otg.state = OTG_STATE_B_IDLE;
-                } else if (langwell->hsm.b_bus_req && langwell->hsm.b_hnp_enable
-                        && langwell->hsm.a_bus_suspend) {
-
-                        if (langwell->client_ops) {
-                                langwell->client_ops->suspend(langwell->pdev,
-                                        PMSG_FREEZE);
-                        } else
-                                otg_dbg("client driver has been removed.\n");
-
-                        langwell_otg_HAAR(1);
-                        langwell->hsm.a_conn = 0;
-
-                        if (langwell->host_ops) {
-                                langwell->host_ops->probe(langwell->pdev,
-                                        langwell->host_ops->id_table);
-                                langwell->otg.state = OTG_STATE_B_WAIT_ACON;
-                        } else
-                                otg_dbg("host driver not loaded.\n");
-
-                        langwell->hsm.a_bus_resume = 0;
-                        langwell->hsm.b_ase0_brst_tmout = 0;
-                        langwell_otg_add_timer(b_ase0_brst_tmr);
-                }
-                break;
-
-        case OTG_STATE_B_WAIT_ACON:
-                if (!langwell->hsm.id) {
-                        langwell_otg_del_timer(b_ase0_brst_tmr);
-                        langwell->otg.default_a = 1;
-                        langwell->hsm.a_srp_det = 0;
-
-                        langwell_otg_drv_vbus(0);
-                        langwell_otg_chrg_vbus(0);
-                        set_host_mode();
-
-                        langwell_otg_HAAR(0);
-                        if (langwell->host_ops)
-                                langwell->host_ops->remove(langwell->pdev);
-                        else
-                                otg_dbg("host driver has been removed.\n");
-                        langwell->otg.state = OTG_STATE_A_IDLE;
-                        queue_work(langwell->qwork, &langwell->work);
-                } else if (!langwell->hsm.b_sess_vld) {
-                        langwell_otg_del_timer(b_ase0_brst_tmr);
-                        langwell->hsm.b_hnp_enable = 0;
-                        langwell->hsm.b_bus_req = 0;
-                        langwell_otg_chrg_vbus(0);
-                        langwell_otg_HAAR(0);
-
-                        if (langwell->host_ops)
-                                langwell->host_ops->remove(langwell->pdev);
-                        else
-                                otg_dbg("host driver has been removed.\n");
-                        langwell->otg.state = OTG_STATE_B_IDLE;
-                } else if (langwell->hsm.a_conn) {
-                        langwell_otg_del_timer(b_ase0_brst_tmr);
-                        langwell_otg_HAAR(0);
-                        langwell->otg.state = OTG_STATE_B_HOST;
-                        queue_work(langwell->qwork, &langwell->work);
-                } else if (langwell->hsm.a_bus_resume ||
-                                langwell->hsm.b_ase0_brst_tmout) {
-                        langwell_otg_del_timer(b_ase0_brst_tmr);
-                        langwell_otg_HAAR(0);
-                        langwell_otg_nsf_msg(7);
-
-                        if (langwell->host_ops)
-                                langwell->host_ops->remove(langwell->pdev);
-                        else
-                                otg_dbg("host driver has been removed.\n");
-
-                        langwell->hsm.a_bus_suspend = 0;
-                        langwell->hsm.b_bus_req = 0;
-
-                        if (langwell->client_ops)
-                                langwell->client_ops->resume(langwell->pdev);
-                        else
-                                otg_dbg("client driver not loaded.\n");
-
-                        langwell->otg.state = OTG_STATE_B_PERIPHERAL;
-                }
-                break;
-
-        case OTG_STATE_B_HOST:
-                if (!langwell->hsm.id) {
-                        langwell->otg.default_a = 1;
-                        langwell->hsm.a_srp_det = 0;
-
-                        langwell_otg_drv_vbus(0);
-                        langwell_otg_chrg_vbus(0);
-                        set_host_mode();
-                        if (langwell->host_ops)
-                                langwell->host_ops->remove(langwell->pdev);
-                        else
-                                otg_dbg("host driver has been removed.\n");
-                        langwell->otg.state = OTG_STATE_A_IDLE;
-                        queue_work(langwell->qwork, &langwell->work);
-                } else if (!langwell->hsm.b_sess_vld) {
-                        langwell->hsm.b_hnp_enable = 0;
-                        langwell->hsm.b_bus_req = 0;
-                        langwell_otg_chrg_vbus(0);
-                        if (langwell->host_ops)
-                                langwell->host_ops->remove(langwell->pdev);
-                        else
-                                otg_dbg("host driver has been removed.\n");
-                        langwell->otg.state = OTG_STATE_B_IDLE;
-                } else if ((!langwell->hsm.b_bus_req) ||
-                                (!langwell->hsm.a_conn)) {
-                        langwell->hsm.b_bus_req = 0;
-                        langwell_otg_loc_sof(0);
-                        if (langwell->host_ops)
-                                langwell->host_ops->remove(langwell->pdev);
-                        else
-                                otg_dbg("host driver has been removed.\n");
-
-                        langwell->hsm.a_bus_suspend = 0;
-
-                        if (langwell->client_ops)
-                                langwell->client_ops->resume(langwell->pdev);
-                        else
-                                otg_dbg("client driver not loaded.\n");
-
-                        langwell->otg.state = OTG_STATE_B_PERIPHERAL;
-                }
-                break;
-
-        case OTG_STATE_A_IDLE:
-                langwell->otg.default_a = 1;
-                if (langwell->hsm.id) {
-                        langwell->otg.default_a = 0;
-                        langwell->hsm.b_bus_req = 0;
-                        langwell_otg_drv_vbus(0);
-                        langwell_otg_chrg_vbus(0);
-
-                        langwell->otg.state = OTG_STATE_B_IDLE;
-                        queue_work(langwell->qwork, &langwell->work);
-                } else if (langwell->hsm.a_sess_vld) {
-                        langwell_otg_drv_vbus(1);
-                        langwell->hsm.a_srp_det = 1;
-                        langwell->hsm.a_wait_vrise_tmout = 0;
-                        langwell_otg_add_timer(a_wait_vrise_tmr);
-                        langwell->otg.state = OTG_STATE_A_WAIT_VRISE;
-                        queue_work(langwell->qwork, &langwell->work);
-                } else if (!langwell->hsm.a_bus_drop &&
-                        (langwell->hsm.a_srp_det || langwell->hsm.a_bus_req)) {
-                        langwell_otg_drv_vbus(1);
-                        langwell->hsm.a_wait_vrise_tmout = 0;
-                        langwell_otg_add_timer(a_wait_vrise_tmr);
-                        langwell->otg.state = OTG_STATE_A_WAIT_VRISE;
-                        queue_work(langwell->qwork, &langwell->work);
-                }
-                break;
-        case OTG_STATE_A_WAIT_VRISE:
-                if (langwell->hsm.id) {
-                        langwell_otg_del_timer(a_wait_vrise_tmr);
-                        langwell->hsm.b_bus_req = 0;
-                        langwell->otg.default_a = 0;
-                        langwell_otg_drv_vbus(0);
-                        langwell->otg.state = OTG_STATE_B_IDLE;
-                } else if (langwell->hsm.a_vbus_vld) {
-                        langwell_otg_del_timer(a_wait_vrise_tmr);
-                        if (langwell->host_ops)
-                                langwell->host_ops->probe(langwell->pdev,
-                                                langwell->host_ops->id_table);
-                        else
-                                otg_dbg("host driver not loaded.\n");
-                        langwell->hsm.b_conn = 0;
-                        langwell->hsm.a_set_b_hnp_en = 0;
-                        langwell->hsm.a_wait_bcon_tmout = 0;
-                        langwell_otg_add_timer(a_wait_bcon_tmr);
-                        langwell->otg.state = OTG_STATE_A_WAIT_BCON;
-                } else if (langwell->hsm.a_wait_vrise_tmout) {
-                        if (langwell->hsm.a_vbus_vld) {
-                                if (langwell->host_ops)
-                                        langwell->host_ops->probe(
-                                                langwell->pdev,
-                                                langwell->host_ops->id_table);
-                                else
-                                        otg_dbg("host driver not loaded.\n");
-                                langwell->hsm.b_conn = 0;
-                                langwell->hsm.a_set_b_hnp_en = 0;
-                                langwell->hsm.a_wait_bcon_tmout = 0;
-                                langwell_otg_add_timer(a_wait_bcon_tmr);
-                                langwell->otg.state = OTG_STATE_A_WAIT_BCON;
-                        } else {
-                                langwell_otg_drv_vbus(0);
-                                langwell->otg.state = OTG_STATE_A_VBUS_ERR;
-                        }
-                }
-                break;
-        case OTG_STATE_A_WAIT_BCON:
-                if (langwell->hsm.id) {
-                        langwell_otg_del_timer(a_wait_bcon_tmr);
-
-                        langwell->otg.default_a = 0;
-                        langwell->hsm.b_bus_req = 0;
-                        if (langwell->host_ops)
-                                langwell->host_ops->remove(langwell->pdev);
-                        else
-                                otg_dbg("host driver has been removed.\n");
-                        langwell_otg_drv_vbus(0);
-                        langwell->otg.state = OTG_STATE_B_IDLE;
-                        queue_work(langwell->qwork, &langwell->work);
-                } else if (!langwell->hsm.a_vbus_vld) {
-                        langwell_otg_del_timer(a_wait_bcon_tmr);
-
-                        if (langwell->host_ops)
-                                langwell->host_ops->remove(langwell->pdev);
-                        else
-                                otg_dbg("host driver has been removed.\n");
-                        langwell_otg_drv_vbus(0);
-                        langwell->otg.state = OTG_STATE_A_VBUS_ERR;
-                } else if (langwell->hsm.a_bus_drop ||
-                                (langwell->hsm.a_wait_bcon_tmout &&
-                                !langwell->hsm.a_bus_req)) {
-                        langwell_otg_del_timer(a_wait_bcon_tmr);
-
-                        if (langwell->host_ops)
-                                langwell->host_ops->remove(langwell->pdev);
-                        else
-                                otg_dbg("host driver has been removed.\n");
-                        langwell_otg_drv_vbus(0);
-                        langwell->otg.state = OTG_STATE_A_WAIT_VFALL;
-                } else if (langwell->hsm.b_conn) {
-                        langwell_otg_del_timer(a_wait_bcon_tmr);
-
-                        langwell->hsm.a_suspend_req = 0;
-                        langwell->otg.state = OTG_STATE_A_HOST;
-                        if (!langwell->hsm.a_bus_req &&
-                                langwell->hsm.a_set_b_hnp_en) {
-                                /* It is not safe enough to do a fast
-                                 * transistion from A_WAIT_BCON to
-                                 * A_SUSPEND */
-                                msleep(10000);
-                                if (langwell->hsm.a_bus_req)
-                                        break;
-
-                                if (request_irq(langwell->pdev->irq,
-                                        otg_dummy_irq, IRQF_SHARED,
-                                        driver_name, langwell->regs) != 0) {
-                                        otg_dbg("request interrupt %d fail\n",
-                                        langwell->pdev->irq);
-                                }
-
-                                langwell_otg_HABA(1);
-                                langwell->hsm.b_bus_resume = 0;
-                                langwell->hsm.a_aidl_bdis_tmout = 0;
-                                langwell_otg_add_timer(a_aidl_bdis_tmr);
-
-                                langwell_otg_loc_sof(0);
-                                langwell->otg.state = OTG_STATE_A_SUSPEND;
-                        } else if (!langwell->hsm.a_bus_req &&
-                                !langwell->hsm.a_set_b_hnp_en) {
-                                struct pci_dev *pdev = langwell->pdev;
-                                if (langwell->host_ops)
-                                        langwell->host_ops->remove(pdev);
-                                else
-                                        otg_dbg("host driver removed.\n");
-                                langwell_otg_drv_vbus(0);
-                                langwell->otg.state = OTG_STATE_A_WAIT_VFALL;
-                        }
-                }
-                break;
-        case OTG_STATE_A_HOST:
-                if (langwell->hsm.id) {
-                        langwell->otg.default_a = 0;
-                        langwell->hsm.b_bus_req = 0;
-                        if (langwell->host_ops)
-                                langwell->host_ops->remove(langwell->pdev);
-                        else
-                                otg_dbg("host driver has been removed.\n");
-                        langwell_otg_drv_vbus(0);
-                        langwell->otg.state = OTG_STATE_B_IDLE;
-                        queue_work(langwell->qwork, &langwell->work);
-                } else if (langwell->hsm.a_bus_drop ||
-                (!langwell->hsm.a_set_b_hnp_en && !langwell->hsm.a_bus_req)) {
-                        if (langwell->host_ops)
-                                langwell->host_ops->remove(langwell->pdev);
-                        else
-                                otg_dbg("host driver has been removed.\n");
-                        langwell_otg_drv_vbus(0);
-                        langwell->otg.state = OTG_STATE_A_WAIT_VFALL;
-                } else if (!langwell->hsm.a_vbus_vld) {
-                        if (langwell->host_ops)
-                                langwell->host_ops->remove(langwell->pdev);
-                        else
-                                otg_dbg("host driver has been removed.\n");
-                        langwell_otg_drv_vbus(0);
-                        langwell->otg.state = OTG_STATE_A_VBUS_ERR;
-                } else if (langwell->hsm.a_set_b_hnp_en
-                                && !langwell->hsm.a_bus_req) {
-                        /* Set HABA to enable hardware assistance to signal
-                         *  A-connect after receiver B-disconnect. Hardware
-                         *  will then set client mode and enable URE, SLE and
-                         *  PCE after the assistance. otg_dummy_irq is used to
-                         *  clean these ints when client driver is not resumed.
-                         */
-                        if (request_irq(langwell->pdev->irq,
-                                otg_dummy_irq, IRQF_SHARED, driver_name,
-                                langwell->regs) != 0) {
-                                otg_dbg("request interrupt %d failed\n",
-                                                langwell->pdev->irq);
-                        }
-
-                        /* set HABA */
-                        langwell_otg_HABA(1);
-                        langwell->hsm.b_bus_resume = 0;
-                        langwell->hsm.a_aidl_bdis_tmout = 0;
-                        langwell_otg_add_timer(a_aidl_bdis_tmr);
-                        langwell_otg_loc_sof(0);
-                        langwell->otg.state = OTG_STATE_A_SUSPEND;
-                } else if (!langwell->hsm.b_conn || !langwell->hsm.a_bus_req) {
-                        langwell->hsm.a_wait_bcon_tmout = 0;
-                        langwell->hsm.a_set_b_hnp_en = 0;
-                        langwell_otg_add_timer(a_wait_bcon_tmr);
-                        langwell->otg.state = OTG_STATE_A_WAIT_BCON;
-                }
-                break;
-        case OTG_STATE_A_SUSPEND:
-                if (langwell->hsm.id) {
-                        langwell_otg_del_timer(a_aidl_bdis_tmr);
-                        langwell_otg_HABA(0);
-                        free_irq(langwell->pdev->irq, langwell->regs);
-                        langwell->otg.default_a = 0;
-                        langwell->hsm.b_bus_req = 0;
-                        if (langwell->host_ops)
-                                langwell->host_ops->remove(langwell->pdev);
-                        else
-                                otg_dbg("host driver has been removed.\n");
-                        langwell_otg_drv_vbus(0);
-                        langwell->otg.state = OTG_STATE_B_IDLE;
-                        queue_work(langwell->qwork, &langwell->work);
-                } else if (langwell->hsm.a_bus_req ||
-                                langwell->hsm.b_bus_resume) {
-                        langwell_otg_del_timer(a_aidl_bdis_tmr);
-                        langwell_otg_HABA(0);
-                        free_irq(langwell->pdev->irq, langwell->regs);
-                        langwell->hsm.a_suspend_req = 0;
-                        langwell_otg_loc_sof(1);
-                        langwell->otg.state = OTG_STATE_A_HOST;
-                } else if (langwell->hsm.a_aidl_bdis_tmout ||
-                                langwell->hsm.a_bus_drop) {
-                        langwell_otg_del_timer(a_aidl_bdis_tmr);
-                        langwell_otg_HABA(0);
-                        free_irq(langwell->pdev->irq, langwell->regs);
-                        if (langwell->host_ops)
-                                langwell->host_ops->remove(langwell->pdev);
-                        else
-                                otg_dbg("host driver has been removed.\n");
-                        langwell_otg_drv_vbus(0);
-                        langwell->otg.state = OTG_STATE_A_WAIT_VFALL;
-                } else if (!langwell->hsm.b_conn &&
-                                langwell->hsm.a_set_b_hnp_en) {
-                        langwell_otg_del_timer(a_aidl_bdis_tmr);
-                        langwell_otg_HABA(0);
-                        free_irq(langwell->pdev->irq, langwell->regs);
-
-                        if (langwell->host_ops)
-                                langwell->host_ops->remove(langwell->pdev);
-                        else
-                                otg_dbg("host driver has been removed.\n");
-
-                        langwell->hsm.b_bus_suspend = 0;
-                        langwell->hsm.b_bus_suspend_vld = 0;
-                        langwell->hsm.b_bus_suspend_tmout = 0;
-
-                        /* msleep(200); */
-                        if (langwell->client_ops)
-                                langwell->client_ops->resume(langwell->pdev);
-                        else
-                                otg_dbg("client driver not loaded.\n");
-
-                        langwell_otg_add_timer(b_bus_suspend_tmr);
-                        langwell->otg.state = OTG_STATE_A_PERIPHERAL;
-                        break;
-                } else if (!langwell->hsm.a_vbus_vld) {
-                        langwell_otg_del_timer(a_aidl_bdis_tmr);
-                        langwell_otg_HABA(0);
-                        free_irq(langwell->pdev->irq, langwell->regs);
-                        if (langwell->host_ops)
-                                langwell->host_ops->remove(langwell->pdev);
-                        else
-                                otg_dbg("host driver has been removed.\n");
-                        langwell_otg_drv_vbus(0);
-                        langwell->otg.state = OTG_STATE_A_VBUS_ERR;
-                }
-                break;
-        case OTG_STATE_A_PERIPHERAL:
-                if (langwell->hsm.id) {
-                        langwell_otg_del_timer(b_bus_suspend_tmr);
-                        langwell->otg.default_a = 0;
-                        langwell->hsm.b_bus_req = 0;
-                        if (langwell->client_ops)
-                                langwell->client_ops->suspend(langwell->pdev,
-                                        PMSG_FREEZE);
-                        else
-                                otg_dbg("client driver has been removed.\n");
-                        langwell_otg_drv_vbus(0);
-                        langwell->otg.state = OTG_STATE_B_IDLE;
-                        queue_work(langwell->qwork, &langwell->work);
-                } else if (!langwell->hsm.a_vbus_vld) {
-                        langwell_otg_del_timer(b_bus_suspend_tmr);
-                        if (langwell->client_ops)
-                                langwell->client_ops->suspend(langwell->pdev,
-                                        PMSG_FREEZE);
-                        else
-                                otg_dbg("client driver has been removed.\n");
-                        langwell_otg_drv_vbus(0);
-                        langwell->otg.state = OTG_STATE_A_VBUS_ERR;
-                } else if (langwell->hsm.a_bus_drop) {
-                        langwell_otg_del_timer(b_bus_suspend_tmr);
-                        if (langwell->client_ops)
-                                langwell->client_ops->suspend(langwell->pdev,
-                                        PMSG_FREEZE);
-                        else
-                                otg_dbg("client driver has been removed.\n");
-                        langwell_otg_drv_vbus(0);
-                        langwell->otg.state = OTG_STATE_A_WAIT_VFALL;
-                } else if (langwell->hsm.b_bus_suspend) {
-                        langwell_otg_del_timer(b_bus_suspend_tmr);
-                        if (langwell->client_ops)
-                                langwell->client_ops->suspend(langwell->pdev,
-                                        PMSG_FREEZE);
-                        else
-                                otg_dbg("client driver has been removed.\n");
-
-                        if (langwell->host_ops)
-                                langwell->host_ops->probe(langwell->pdev,
-                                                langwell->host_ops->id_table);
-                        else
-                                otg_dbg("host driver not loaded.\n");
-                        langwell->hsm.a_set_b_hnp_en = 0;
-                        langwell->hsm.a_wait_bcon_tmout = 0;
-                        langwell_otg_add_timer(a_wait_bcon_tmr);
-                        langwell->otg.state = OTG_STATE_A_WAIT_BCON;
-                } else if (langwell->hsm.b_bus_suspend_tmout) {
-                        u32     val;
-                        val = readl(langwell->regs + CI_PORTSC1);
-                        if (!(val & PORTSC_SUSP))
-                                break;
-                        if (langwell->client_ops)
-                                langwell->client_ops->suspend(langwell->pdev,
-                                                PMSG_FREEZE);
-                        else
-                                otg_dbg("client driver has been removed.\n");
-                        if (langwell->host_ops)
-                                langwell->host_ops->probe(langwell->pdev,
-                                                langwell->host_ops->id_table);
-                        else
-                                otg_dbg("host driver not loaded.\n");
-                        langwell->hsm.a_set_b_hnp_en = 0;
-                        langwell->hsm.a_wait_bcon_tmout = 0;
-                        langwell_otg_add_timer(a_wait_bcon_tmr);
-                        langwell->otg.state = OTG_STATE_A_WAIT_BCON;
-                }
-                break;
-        case OTG_STATE_A_VBUS_ERR:
-                if (langwell->hsm.id) {
-                        langwell->otg.default_a = 0;
-                        langwell->hsm.a_clr_err = 0;
-                        langwell->hsm.a_srp_det = 0;
-                        langwell->otg.state = OTG_STATE_B_IDLE;
-                        queue_work(langwell->qwork, &langwell->work);
-                } else if (langwell->hsm.a_clr_err) {
-                        langwell->hsm.a_clr_err = 0;
-                        langwell->hsm.a_srp_det = 0;
-                        reset_otg();
-                        init_hsm();
-                        if (langwell->otg.state == OTG_STATE_A_IDLE)
-                                queue_work(langwell->qwork, &langwell->work);
-                }
-                break;
-        case OTG_STATE_A_WAIT_VFALL:
-                if (langwell->hsm.id) {
-                        langwell->otg.default_a = 0;
-                        langwell->otg.state = OTG_STATE_B_IDLE;
-                        queue_work(langwell->qwork, &langwell->work);
-                } else if (langwell->hsm.a_bus_req) {
-                        langwell_otg_drv_vbus(1);
-                        langwell->hsm.a_wait_vrise_tmout = 0;
-                        langwell_otg_add_timer(a_wait_vrise_tmr);
-                        langwell->otg.state = OTG_STATE_A_WAIT_VRISE;
-                } else if (!langwell->hsm.a_sess_vld) {
-                        langwell->hsm.a_srp_det = 0;
-                        langwell_otg_drv_vbus(0);
-                        set_host_mode();
-                        langwell->otg.state = OTG_STATE_A_IDLE;
-                }
-                break;
-        default:
-                ;
-        }
-
-        otg_dbg("%s: new state = %s\n", __func__,
-                        state_string(langwell->otg.state));
-}
-
-        static ssize_t
-show_registers(struct device *_dev, struct device_attribute *attr, char *buf)
-{
-        struct langwell_otg *langwell;
-        char *next;
-        unsigned size;
-        unsigned t;
-
-        langwell = the_transceiver;
-        next = buf;
-        size = PAGE_SIZE;
-
-        t = scnprintf(next, size,
-                "\n"
-                "USBCMD = 0x%08x \n"
-                "USBSTS = 0x%08x \n"
-                "USBINTR = 0x%08x \n"
-                "ASYNCLISTADDR = 0x%08x \n"
-                "PORTSC1 = 0x%08x \n"
-                "HOSTPC1 = 0x%08x \n"
-                "OTGSC = 0x%08x \n"
-                "USBMODE = 0x%08x \n",
-                readl(langwell->regs + 0x30),
-                readl(langwell->regs + 0x34),
-                readl(langwell->regs + 0x38),
-                readl(langwell->regs + 0x48),
-                readl(langwell->regs + 0x74),
-                readl(langwell->regs + 0xb4),
-                readl(langwell->regs + 0xf4),
-                readl(langwell->regs + 0xf8)
-                );
-        size -= t;
-        next += t;
-
-        return PAGE_SIZE - size;
-}
-static DEVICE_ATTR(registers, S_IRUGO, show_registers, NULL);
-
-static ssize_t
-show_hsm(struct device *_dev, struct device_attribute *attr, char *buf)
-{
-        struct langwell_otg *langwell;
-        char *next;
-        unsigned size;
-        unsigned t;
-
-        langwell = the_transceiver;
-        next = buf;
-        size = PAGE_SIZE;
-
-        t = scnprintf(next, size,
-                "\n"
-                "current state = %s\n"
-                "a_bus_resume = \t%d\n"
-                "a_bus_suspend = \t%d\n"
-                "a_conn = \t%d\n"
-                "a_sess_vld = \t%d\n"
-                "a_srp_det = \t%d\n"
-                "a_vbus_vld = \t%d\n"
-                "b_bus_resume = \t%d\n"
-                "b_bus_suspend = \t%d\n"
-                "b_conn = \t%d\n"
-                "b_se0_srp = \t%d\n"
-                "b_sess_end = \t%d\n"
-                "b_sess_vld = \t%d\n"
-                "id = \t%d\n"
-                "a_set_b_hnp_en = \t%d\n"
-                "b_srp_done = \t%d\n"
-                "b_hnp_enable = \t%d\n"
-                "a_wait_vrise_tmout = \t%d\n"
-                "a_wait_bcon_tmout = \t%d\n"
-                "a_aidl_bdis_tmout = \t%d\n"
-                "b_ase0_brst_tmout = \t%d\n"
-                "a_bus_drop = \t%d\n"
-                "a_bus_req = \t%d\n"
-                "a_clr_err = \t%d\n"
-                "a_suspend_req = \t%d\n"
-                "b_bus_req = \t%d\n"
-                "b_bus_suspend_tmout = \t%d\n"
-                "b_bus_suspend_vld = \t%d\n",
-                state_string(langwell->otg.state),
-                langwell->hsm.a_bus_resume,
-                langwell->hsm.a_bus_suspend,
-                langwell->hsm.a_conn,
-                langwell->hsm.a_sess_vld,
-                langwell->hsm.a_srp_det,
-                langwell->hsm.a_vbus_vld,
-                langwell->hsm.b_bus_resume,
-                langwell->hsm.b_bus_suspend,
-                langwell->hsm.b_conn,
-                langwell->hsm.b_se0_srp,
-                langwell->hsm.b_sess_end,
-                langwell->hsm.b_sess_vld,
-                langwell->hsm.id,
-                langwell->hsm.a_set_b_hnp_en,
-                langwell->hsm.b_srp_done,
-                langwell->hsm.b_hnp_enable,
-                langwell->hsm.a_wait_vrise_tmout,
-                langwell->hsm.a_wait_bcon_tmout,
-                langwell->hsm.a_aidl_bdis_tmout,
-                langwell->hsm.b_ase0_brst_tmout,
-                langwell->hsm.a_bus_drop,
-                langwell->hsm.a_bus_req,
-                langwell->hsm.a_clr_err,
-                langwell->hsm.a_suspend_req,
-                langwell->hsm.b_bus_req,
-                langwell->hsm.b_bus_suspend_tmout,
-                langwell->hsm.b_bus_suspend_vld
-                );
-        size -= t;
-        next += t;
-
-        return PAGE_SIZE - size;
-}
-static DEVICE_ATTR(hsm, S_IRUGO, show_hsm, NULL);
-
-static ssize_t
-get_a_bus_req(struct device *dev, struct device_attribute *attr, char *buf)
-{
-        struct langwell_otg *langwell;
-        char *next;
-        unsigned size;
-        unsigned t;
-
-        langwell =  the_transceiver;
-        next = buf;
-        size = PAGE_SIZE;
-
-        t = scnprintf(next, size, "%d", langwell->hsm.a_bus_req);
-        size -= t;
-        next += t;
-
-        return PAGE_SIZE - size;
-}
-
-static ssize_t
-set_a_bus_req(struct device *dev, struct device_attribute *attr,
-                const char *buf, size_t count)
-{
-        struct langwell_otg *langwell;
-        langwell = the_transceiver;
-        if (!langwell->otg.default_a)
-                return -1;
-        if (count > 2)
-                return -1;
-
-        if (buf[0] == '0') {
-                langwell->hsm.a_bus_req = 0;
-                otg_dbg("a_bus_req = 0\n");
-        } else if (buf[0] == '1') {
-                /* If a_bus_drop is TRUE, a_bus_req can't be set */
-                if (langwell->hsm.a_bus_drop)
-                        return -1;
-                langwell->hsm.a_bus_req = 1;
-                otg_dbg("a_bus_req = 1\n");
-        }
-        if (spin_trylock(&langwell->wq_lock)) {
-                queue_work(langwell->qwork, &langwell->work);
-                spin_unlock(&langwell->wq_lock);
-        }
-        return count;
-}
-static DEVICE_ATTR(a_bus_req, S_IRUGO | S_IWUGO, get_a_bus_req, set_a_bus_req);
-
-static ssize_t
-get_a_bus_drop(struct device *dev, struct device_attribute *attr, char *buf)
-{
-        struct langwell_otg *langwell;
-        char *next;
-        unsigned size;
-        unsigned t;
-
-        langwell =  the_transceiver;
-        next = buf;
-        size = PAGE_SIZE;
-
-        t = scnprintf(next, size, "%d", langwell->hsm.a_bus_drop);
-        size -= t;
-        next += t;
-
-        return PAGE_SIZE - size;
-}
-
-static ssize_t
-set_a_bus_drop(struct device *dev, struct device_attribute *attr,
-                const char *buf, size_t count)
-{
-        struct langwell_otg *langwell;
-        langwell = the_transceiver;
-        if (!langwell->otg.default_a)
-                return -1;
-        if (count > 2)
-                return -1;
-
-        if (buf[0] == '0') {
-                langwell->hsm.a_bus_drop = 0;
-                otg_dbg("a_bus_drop = 0\n");
-        } else if (buf[0] == '1') {
-                langwell->hsm.a_bus_drop = 1;
-                langwell->hsm.a_bus_req = 0;
-                otg_dbg("a_bus_drop = 1, then a_bus_req = 0\n");
-        }
-        if (spin_trylock(&langwell->wq_lock)) {
-                queue_work(langwell->qwork, &langwell->work);
-                spin_unlock(&langwell->wq_lock);
-        }
-        return count;
-}
-static DEVICE_ATTR(a_bus_drop, S_IRUGO | S_IWUGO,
-        get_a_bus_drop, set_a_bus_drop);
-
-static ssize_t
-get_b_bus_req(struct device *dev, struct device_attribute *attr, char *buf)
-{
-        struct langwell_otg *langwell;
-        char *next;
-        unsigned size;
-        unsigned t;
-
-        langwell =  the_transceiver;
-        next = buf;
-        size = PAGE_SIZE;
-
-        t = scnprintf(next, size, "%d", langwell->hsm.b_bus_req);
-        size -= t;
-        next += t;
-
-        return PAGE_SIZE - size;
-}
-
-static ssize_t
-set_b_bus_req(struct device *dev, struct device_attribute *attr,
-                const char *buf, size_t count)
-{
-        struct langwell_otg *langwell;
-        langwell = the_transceiver;
-
-        if (langwell->otg.default_a)
-                return -1;
-
-        if (count > 2)
-                return -1;
-
-        if (buf[0] == '0') {
-                langwell->hsm.b_bus_req = 0;
-                otg_dbg("b_bus_req = 0\n");
-        } else if (buf[0] == '1') {
-                langwell->hsm.b_bus_req = 1;
-                otg_dbg("b_bus_req = 1\n");
-        }
-        if (spin_trylock(&langwell->wq_lock)) {
-                queue_work(langwell->qwork, &langwell->work);
-                spin_unlock(&langwell->wq_lock);
-        }
-        return count;
-}
-static DEVICE_ATTR(b_bus_req, S_IRUGO | S_IWUGO, get_b_bus_req, set_b_bus_req);
-
-static ssize_t
-set_a_clr_err(struct device *dev, struct device_attribute *attr,
-                const char *buf, size_t count)
-{
-        struct langwell_otg *langwell;
-        langwell = the_transceiver;
-
-        if (!langwell->otg.default_a)
-                return -1;
-        if (count > 2)
-                return -1;
-
-        if (buf[0] == '1') {
-                langwell->hsm.a_clr_err = 1;
-                otg_dbg("a_clr_err = 1\n");
-        }
-        if (spin_trylock(&langwell->wq_lock)) {
-                queue_work(langwell->qwork, &langwell->work);
-                spin_unlock(&langwell->wq_lock);
-        }
-        return count;
-}
-static DEVICE_ATTR(a_clr_err, S_IWUGO, NULL, set_a_clr_err);
-
-static struct attribute *inputs_attrs[] = {
-        &dev_attr_a_bus_req.attr,
-        &dev_attr_a_bus_drop.attr,
-        &dev_attr_b_bus_req.attr,
-        &dev_attr_a_clr_err.attr,
-        NULL,
-};
-
-static struct attribute_group debug_dev_attr_group = {
-        .name = "inputs",
-        .attrs = inputs_attrs,
-};
-
-int langwell_register_host(struct pci_driver *host_driver)
-{
-        int     ret = 0;
-
-        the_transceiver->host_ops = host_driver;
-        queue_work(the_transceiver->qwork, &the_transceiver->work);
-        otg_dbg("host controller driver is registered\n");
-
-        return ret;
-}
-EXPORT_SYMBOL(langwell_register_host);
-
-void langwell_unregister_host(struct pci_driver *host_driver)
-{
-        if (the_transceiver->host_ops)
-                the_transceiver->host_ops->remove(the_transceiver->pdev);
-        the_transceiver->host_ops = NULL;
-        the_transceiver->hsm.a_bus_drop = 1;
-        queue_work(the_transceiver->qwork, &the_transceiver->work);
-        otg_dbg("host controller driver is unregistered\n");
-}
-EXPORT_SYMBOL(langwell_unregister_host);
-
-int langwell_register_peripheral(struct pci_driver *client_driver)
-{
-        int     ret = 0;
-
-        if (client_driver)
-                ret = client_driver->probe(the_transceiver->pdev,
-                                client_driver->id_table);
-        if (!ret) {
-                the_transceiver->client_ops = client_driver;
-                queue_work(the_transceiver->qwork, &the_transceiver->work);
-                otg_dbg("client controller driver is registered\n");
-        }
-
-        return ret;
-}
-EXPORT_SYMBOL(langwell_register_peripheral);
-
-void langwell_unregister_peripheral(struct pci_driver *client_driver)
-{
-        if (the_transceiver->client_ops)
-                the_transceiver->client_ops->remove(the_transceiver->pdev);
-        the_transceiver->client_ops = NULL;
-        the_transceiver->hsm.b_bus_req = 0;
-        queue_work(the_transceiver->qwork, &the_transceiver->work);
-        otg_dbg("client controller driver is unregistered\n");
-}
-EXPORT_SYMBOL(langwell_unregister_peripheral);
-
-static int langwell_otg_probe(struct pci_dev *pdev,
-                const struct pci_device_id *id)
-{
-        unsigned long           resource, len;
-        void __iomem            *base = NULL;
-        int                     retval;
-        u32                     val32;
-        struct langwell_otg     *langwell;
-        char                    qname[] = "langwell_otg_queue";
-
-        retval = 0;
-        otg_dbg("\notg controller is detected.\n");
-        if (pci_enable_device(pdev) < 0) {
-                retval = -ENODEV;
-                goto done;
-        }
-
-        langwell = kzalloc(sizeof *langwell, GFP_KERNEL);
-        if (langwell == NULL) {
-                retval = -ENOMEM;
-                goto done;
-        }
-        the_transceiver = langwell;
-
-        /* control register: BAR 0 */
-        resource = pci_resource_start(pdev, 0);
-        len = pci_resource_len(pdev, 0);
-        if (!request_mem_region(resource, len, driver_name)) {
-                retval = -EBUSY;
-                goto err;
-        }
-        langwell->region = 1;
-
-        base = ioremap_nocache(resource, len);
-        if (base == NULL) {
-                retval = -EFAULT;
-                goto err;
-        }
-        langwell->regs = base;
-
-        if (!pdev->irq) {
-                otg_dbg("No IRQ.\n");
-                retval = -ENODEV;
-                goto err;
-        }
-
-        langwell->qwork = create_workqueue(qname);
-        if (!langwell->qwork) {
-                otg_dbg("cannot create workqueue %s\n", qname);
-                retval = -ENOMEM;
-                goto err;
-        }
-        INIT_WORK(&langwell->work, langwell_otg_work);
-
-        /* OTG common part */
-        langwell->pdev = pdev;
-        langwell->otg.dev = &pdev->dev;
-        langwell->otg.label = driver_name;
-        langwell->otg.set_host = langwell_otg_set_host;
-        langwell->otg.set_peripheral = langwell_otg_set_peripheral;
-        langwell->otg.set_power = langwell_otg_set_power;
-        langwell->otg.start_srp = langwell_otg_start_srp;
-        langwell->otg.state = OTG_STATE_UNDEFINED;
-        if (otg_set_transceiver(&langwell->otg)) {
-                otg_dbg("can't set transceiver\n");
-                retval = -EBUSY;
-                goto err;
-        }
-
-        reset_otg();
-        init_hsm();
-
-        spin_lock_init(&langwell->lock);
-        spin_lock_init(&langwell->wq_lock);
-        INIT_LIST_HEAD(&active_timers);
-        langwell_otg_init_timers(&langwell->hsm);
-
-        if (request_irq(pdev->irq, otg_irq, IRQF_SHARED,
-                                driver_name, langwell) != 0) {
-                otg_dbg("request interrupt %d failed\n", pdev->irq);
-                retval = -EBUSY;
-                goto err;
-        }
-
-        /* enable OTGSC int */
-        val32 = OTGSC_DPIE | OTGSC_BSEIE | OTGSC_BSVIE |
-                OTGSC_ASVIE | OTGSC_AVVIE | OTGSC_IDIE | OTGSC_IDPU;
-        writel(val32, langwell->regs + CI_OTGSC);
-
-        retval = device_create_file(&pdev->dev, &dev_attr_registers);
-        if (retval < 0) {
-                otg_dbg("Can't register sysfs attribute: %d\n", retval);
-                goto err;
-        }
-
-        retval = device_create_file(&pdev->dev, &dev_attr_hsm);
-        if (retval < 0) {
-                otg_dbg("Can't hsm sysfs attribute: %d\n", retval);
-                goto err;
-        }
-
-        retval = sysfs_create_group(&pdev->dev.kobj, &debug_dev_attr_group);
-        if (retval < 0) {
-                otg_dbg("Can't register sysfs attr group: %d\n", retval);
-                goto err;
-        }
-
-        if (langwell->otg.state == OTG_STATE_A_IDLE)
-                queue_work(langwell->qwork, &langwell->work);
-
-        return 0;
-
-err:
-        if (the_transceiver)
-                langwell_otg_remove(pdev);
-done:
-        return retval;
-}
-
-static void langwell_otg_remove(struct pci_dev *pdev)
-{
-        struct langwell_otg *langwell;
-
-        langwell = the_transceiver;
-
-        if (langwell->qwork) {
-                flush_workqueue(langwell->qwork);
-                destroy_workqueue(langwell->qwork);
-        }
-        langwell_otg_free_timers();
-
-        /* disable OTGSC interrupt as OTGSC doesn't change in reset */
-        writel(0, langwell->regs + CI_OTGSC);
-
-        if (pdev->irq)
-                free_irq(pdev->irq, langwell);
-        if (langwell->regs)
-                iounmap(langwell->regs);
-        if (langwell->region)
-                release_mem_region(pci_resource_start(pdev, 0),
-                                pci_resource_len(pdev, 0));
-
-        otg_set_transceiver(NULL);
-        pci_disable_device(pdev);
-        sysfs_remove_group(&pdev->dev.kobj, &debug_dev_attr_group);
-        device_remove_file(&pdev->dev, &dev_attr_hsm);
-        device_remove_file(&pdev->dev, &dev_attr_registers);
-        kfree(langwell);
-        langwell = NULL;
-}
-
-static void transceiver_suspend(struct pci_dev *pdev)
-{
-        pci_save_state(pdev);
-        pci_set_power_state(pdev, PCI_D3hot);
-        langwell_otg_phy_low_power(1);
-}
-
-static int langwell_otg_suspend(struct pci_dev *pdev, pm_message_t message)
-{
-        int     ret = 0;
-        struct langwell_otg *langwell;
-
-        langwell = the_transceiver;
-
-        /* Disbale OTG interrupts */
-        langwell_otg_intr(0);
-
-        if (pdev->irq)
-                free_irq(pdev->irq, langwell);
-
-        /* Prevent more otg_work */
-        flush_workqueue(langwell->qwork);
-        spin_lock(&langwell->wq_lock);
-
-        /* start actions */
-        switch (langwell->otg.state) {
-        case OTG_STATE_A_IDLE:
-        case OTG_STATE_B_IDLE:
-        case OTG_STATE_A_WAIT_VFALL:
-        case OTG_STATE_A_VBUS_ERR:
-                transceiver_suspend(pdev);
-                break;
-        case OTG_STATE_A_WAIT_VRISE:
-                langwell_otg_del_timer(a_wait_vrise_tmr);
-                langwell->hsm.a_srp_det = 0;
-                langwell_otg_drv_vbus(0);
-                langwell->otg.state = OTG_STATE_A_IDLE;
-                transceiver_suspend(pdev);
-                break;
-        case OTG_STATE_A_WAIT_BCON:
-                langwell_otg_del_timer(a_wait_bcon_tmr);
-                if (langwell->host_ops)
-                        ret = langwell->host_ops->suspend(pdev, message);
-                langwell_otg_drv_vbus(0);
-                break;
-        case OTG_STATE_A_HOST:
-                if (langwell->host_ops)
-                        ret = langwell->host_ops->suspend(pdev, message);
-                langwell_otg_drv_vbus(0);
-                langwell_otg_phy_low_power(1);
-                break;
-        case OTG_STATE_A_SUSPEND:
-                langwell_otg_del_timer(a_aidl_bdis_tmr);
-                langwell_otg_HABA(0);
-                if (langwell->host_ops)
-                        langwell->host_ops->remove(pdev);
-                else
-                        otg_dbg("host driver has been removed.\n");
-                langwell_otg_drv_vbus(0);
-                transceiver_suspend(pdev);
-                langwell->otg.state = OTG_STATE_A_WAIT_VFALL;
-                break;
-        case OTG_STATE_A_PERIPHERAL:
-                if (langwell->client_ops)
-                        ret = langwell->client_ops->suspend(pdev, message);
-                else
-                        otg_dbg("client driver has been removed.\n");
-                langwell_otg_drv_vbus(0);
-                transceiver_suspend(pdev);
-                langwell->otg.state = OTG_STATE_A_WAIT_VFALL;
-                break;
-        case OTG_STATE_B_HOST:
-                if (langwell->host_ops)
-                        langwell->host_ops->remove(pdev);
-                else
-                        otg_dbg("host driver has been removed.\n");
-                langwell->hsm.b_bus_req = 0;
-                transceiver_suspend(pdev);
-                langwell->otg.state = OTG_STATE_B_IDLE;
-                break;
-        case OTG_STATE_B_PERIPHERAL:
-                if (langwell->client_ops)
-                        ret = langwell->client_ops->suspend(pdev, message);
-                else
-                        otg_dbg("client driver has been removed.\n");
-                break;
-        case OTG_STATE_B_WAIT_ACON:
-                langwell_otg_del_timer(b_ase0_brst_tmr);
-                langwell_otg_HAAR(0);
-                if (langwell->host_ops)
-                        langwell->host_ops->remove(pdev);
-                else
-                        otg_dbg("host driver has been removed.\n");
-                langwell->hsm.b_bus_req = 0;
-                langwell->otg.state = OTG_STATE_B_IDLE;
-                transceiver_suspend(pdev);
-                break;
-        default:
-                otg_dbg("error state before suspend\n ");
-                break;
-        }
-        spin_unlock(&langwell->wq_lock);
-
-        return ret;
-}
-
-static void transceiver_resume(struct pci_dev *pdev)
-{
-        pci_restore_state(pdev);
-        pci_set_power_state(pdev, PCI_D0);
-        langwell_otg_phy_low_power(0);
-}
-
-static int langwell_otg_resume(struct pci_dev *pdev)
-{
-        int     ret = 0;
-        struct langwell_otg *langwell;
-
-        langwell = the_transceiver;
-
-        spin_lock(&langwell->wq_lock);
-
-        switch (langwell->otg.state) {
-        case OTG_STATE_A_IDLE:
-        case OTG_STATE_B_IDLE:
-        case OTG_STATE_A_WAIT_VFALL:
-        case OTG_STATE_A_VBUS_ERR:
-                transceiver_resume(pdev);
-                break;
-        case OTG_STATE_A_WAIT_BCON:
-                langwell_otg_add_timer(a_wait_bcon_tmr);
-                langwell_otg_drv_vbus(1);
-                if (langwell->host_ops)
-                        ret = langwell->host_ops->resume(pdev);
-                break;
-        case OTG_STATE_A_HOST:
-                langwell_otg_drv_vbus(1);
-                langwell_otg_phy_low_power(0);
-                if (langwell->host_ops)
-                        ret = langwell->host_ops->resume(pdev);
-                break;
-        case OTG_STATE_B_PERIPHERAL:
-                if (langwell->client_ops)
-                        ret = langwell->client_ops->resume(pdev);
-                else
-                        otg_dbg("client driver not loaded.\n");
-                break;
-        default:
-                otg_dbg("error state before suspend\n ");
-                break;
-        }
-
-        if (request_irq(pdev->irq, otg_irq, IRQF_SHARED,
-                                driver_name, the_transceiver) != 0) {
-                otg_dbg("request interrupt %d failed\n", pdev->irq);
-                ret = -EBUSY;
-        }
-
-        /* enable OTG interrupts */
-        langwell_otg_intr(1);
-
-        spin_unlock(&langwell->wq_lock);
-
-        queue_work(langwell->qwork, &langwell->work);
-
-
-        return ret;
-}
-
-static int __init langwell_otg_init(void)
-{
-        return pci_register_driver(&otg_pci_driver);
-}
-module_init(langwell_otg_init);
-
-static void __exit langwell_otg_cleanup(void)
-{
-        pci_unregister_driver(&otg_pci_driver);
-}
-module_exit(langwell_otg_cleanup);
diff --git a/drivers/usb/otg/nop-usb-xceiv.c b/drivers/usb/otg/nop-usb-xceiv.c
index 9ed5ea568679..af456b48985f 100644
--- a/drivers/usb/otg/nop-usb-xceiv.c
+++ b/drivers/usb/otg/nop-usb-xceiv.c
@@ -53,6 +53,7 @@ EXPORT_SYMBOL(usb_nop_xceiv_register);
 void usb_nop_xceiv_unregister(void)
 {
         platform_device_unregister(pd);
+        pd = NULL;
 }
 EXPORT_SYMBOL(usb_nop_xceiv_unregister);
 
diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
index 247b61bfb7f4..0e4f2e41ace5 100644
--- a/drivers/usb/serial/console.c
+++ b/drivers/usb/serial/console.c
@@ -169,9 +169,11 @@ static int usb_console_setup(struct console *co, char *options)
                         kfree(tty);
                 }
         }
-        /* So we know not to kill the hardware on a hangup on this
-           port. We have also bumped the use count by one so it won't go
-           idle */
+        /* Now that any required fake tty operations are completed restore
+         * the tty port count */
+        --port->port.count;
+        /* The console is special in terms of closing the device so
+         * indicate this port is now acting as a system console. */
         port->console = 1;
         retval = 0;
 
@@ -204,7 +206,7 @@ static void usb_console_write(struct console *co,
 
         dbg("%s - port %d, %d byte(s)", __func__, port->number, count);
 
-        if (!port->port.count) {
+        if (!port->console) {
                 dbg("%s - port not opened", __func__);
                 return;
         }
@@ -300,8 +302,7 @@ void usb_serial_console_exit(void)
 {
         if (usbcons_info.port) {
                 unregister_console(&usbcons);
-                if (usbcons_info.port->port.count)
-                        usbcons_info.port->port.count--;
+                usbcons_info.port->console = 0;
                 usbcons_info.port = NULL;
         }
 }
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 2b9eeda62bfe..985cbcf48bda 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -67,6 +67,8 @@ static struct usb_device_id id_table [] = {
         { USB_DEVICE(0x10AB, 0x10C5) }, /* Siemens MC60 Cable */
         { USB_DEVICE(0x10B5, 0xAC70) }, /* Nokia CA-42 USB */
         { USB_DEVICE(0x10C4, 0x0F91) }, /* Vstabi */
+        { USB_DEVICE(0x10C4, 0x1101) }, /* Arkham Technology DS101 Bus Monitor */
+        { USB_DEVICE(0x10C4, 0x1601) }, /* Arkham Technology DS101 Adapter */
         { USB_DEVICE(0x10C4, 0x800A) }, /* SPORTident BSM7-D-USB main station */
         { USB_DEVICE(0x10C4, 0x803B) }, /* Pololu USB-serial converter */
         { USB_DEVICE(0x10C4, 0x8053) }, /* Enfora EDG1228 */
@@ -78,6 +80,7 @@ static struct usb_device_id id_table [] = {
         { USB_DEVICE(0x10C4, 0x80F6) }, /* Suunto sports instrument */
         { USB_DEVICE(0x10C4, 0x8115) }, /* Arygon NFC/Mifare Reader */
         { USB_DEVICE(0x10C4, 0x813D) }, /* Burnside Telecom Deskmobile */
+        { USB_DEVICE(0x10C4, 0x813F) }, /* Tams Master Easy Control */
         { USB_DEVICE(0x10C4, 0x814A) }, /* West Mountain Radio RIGblaster P&P */
         { USB_DEVICE(0x10C4, 0x814B) }, /* West Mountain Radio RIGtalk */
         { USB_DEVICE(0x10C4, 0x815E) }, /* Helicomm IP-Link 1220-DVM */
@@ -94,7 +97,9 @@ static struct usb_device_id id_table [] = {
         { USB_DEVICE(0x10c4, 0x8293) }, /* Telegesys ETRX2USB */
         { USB_DEVICE(0x10C4, 0x82F9) }, /* Procyon AVS */
         { USB_DEVICE(0x10C4, 0x8341) }, /* Siemens MC35PU GPRS Modem */
+        { USB_DEVICE(0x10C4, 0x8382) }, /* Cygnal Integrated Products, Inc. */
         { USB_DEVICE(0x10C4, 0x83A8) }, /* Amber Wireless AMB2560 */
+        { USB_DEVICE(0x10C4, 0x8411) }, /* Kyocera GPS Module */
         { USB_DEVICE(0x10C4, 0x846E) }, /* BEI USB Sensor Interface (VCP) */
         { USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */
         { USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index 9734085fd2fe..59adfe123110 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -1228,8 +1228,8 @@ static void cypress_read_int_callback(struct urb *urb)
                 /* precursor to disconnect so just go away */
                 return;
         case -EPIPE:
-                usb_clear_halt(port->serial->dev, 0x81);
-                break;
+                /* Can't call usb_clear_halt while in_interrupt */
+                /* FALLS THROUGH */
         default:
                 /* something ugly is going on... */
                 dev_err(&urb->dev->dev,
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 3dc3768ca71c..8fec5d4455c9 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -33,6 +33,7 @@
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/tty.h>
 #include <linux/tty_driver.h>
 #include <linux/tty_flip.h>
@@ -107,6 +108,7 @@ struct ftdi_sio_quirk {
 
 static int   ftdi_jtag_probe(struct usb_serial *serial);
 static int   ftdi_mtxorb_hack_setup(struct usb_serial *serial);
+static int   ftdi_NDI_device_setup(struct usb_serial *serial);
 static void  ftdi_USB_UIRT_setup(struct ftdi_private *priv);
 static void  ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
 
@@ -118,6 +120,10 @@ static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
         .probe  = ftdi_mtxorb_hack_setup,
 };
 
+static struct ftdi_sio_quirk ftdi_NDI_device_quirk = {
+        .probe  = ftdi_NDI_device_setup,
+};
+
 static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
         .port_probe = ftdi_USB_UIRT_setup,
 };
@@ -191,6 +197,7 @@ static struct usb_device_id id_table_combined [] = {
         { USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
         { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
         { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
+        { USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) },
         { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
         { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
         { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
@@ -579,6 +586,9 @@ static struct usb_device_id id_table_combined [] = {
         { USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
         { USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
         { USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
+        { USB_DEVICE(FTDI_VID, FTDI_CCSLOAD_N_GO_3_PID) },
+        { USB_DEVICE(FTDI_VID, FTDI_CCSICDU64_4_PID) },
+        { USB_DEVICE(FTDI_VID, FTDI_CCSPRIME8_5_PID) },
         { USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
         { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
         { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
@@ -644,6 +654,16 @@ static struct usb_device_id id_table_combined [] = {
         { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
         { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
         { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
+        { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID),
+                .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
+        { USB_DEVICE(FTDI_VID, FTDI_NDI_SPECTRA_SCU_PID),
+                .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
+        { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_2_PID),
+                .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
+        { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_3_PID),
+                .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
+        { USB_DEVICE(FTDI_VID, FTDI_NDI_AURORA_SCU_PID),
+                .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
         { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
         { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
         { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
@@ -660,6 +680,8 @@ static struct usb_device_id id_table_combined [] = {
                 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
         { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
                 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
+        { USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID),
+                .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
         { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
         { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
         { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
@@ -667,7 +689,6 @@ static struct usb_device_id id_table_combined [] = {
         { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
         { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
         { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
-        { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID) },
         { USB_DEVICE(ATMEL_VID, STK541_PID) },
         { USB_DEVICE(DE_VID, STB_PID) },
         { USB_DEVICE(DE_VID, WHT_PID) },
@@ -677,6 +698,10 @@ static struct usb_device_id id_table_combined [] = {
         { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
                 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
         { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
+        { USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) },
+        { USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) },
+        { USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID),
+                .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
         { },                                    /* Optional parameter entry */
         { }                                     /* Terminating entry */
 };
@@ -1023,6 +1048,16 @@ static __u32 get_ftdi_divisor(struct tty_struct *tty,
         case FT2232C: /* FT2232C chip */
         case FT232RL:
                 if (baud <= 3000000) {
+                        __u16 product_id = le16_to_cpu(
+                                port->serial->dev->descriptor.idProduct);
+                        if (((FTDI_NDI_HUC_PID == product_id) ||
+                             (FTDI_NDI_SPECTRA_SCU_PID == product_id) ||
+                             (FTDI_NDI_FUTURE_2_PID == product_id) ||
+                             (FTDI_NDI_FUTURE_3_PID == product_id) ||
+                             (FTDI_NDI_AURORA_SCU_PID == product_id)) &&
+                            (baud == 19200)) {
+                                baud = 1200000;
+                        }
                         div_value = ftdi_232bm_baud_to_divisor(baud);
                 } else {
                         dbg("%s - Baud rate too high!", __func__);
@@ -1554,6 +1589,39 @@ static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
 } /* ftdi_HE_TIRA1_setup */
 
 /*
+ * Module parameter to control latency timer for NDI FTDI-based USB devices.
+ * If this value is not set in modprobe.conf.local its value will be set to 1ms.
+ */
+static int ndi_latency_timer = 1;
+
+/* Setup for the NDI FTDI-based USB devices, which requires hardwired
+ * baudrate (19200 gets mapped to 1200000).
+ *
+ * Called from usbserial:serial_probe.
+ */
+static int ftdi_NDI_device_setup(struct usb_serial *serial)
+{
+        struct usb_device *udev = serial->dev;
+        int latency = ndi_latency_timer;
+        int rv = 0;
+        char buf[1];
+
+        if (latency == 0)
+                latency = 1;
+        if (latency > 99)
+                latency = 99;
+
+        dbg("%s setting NDI device latency to %d", __func__, latency);
+        dev_info(&udev->dev, "NDI device with a latency value of %d", latency);
+
+        rv = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+                                FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
+                                FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
+                                latency, 0, buf, 0, WDR_TIMEOUT);
+        return 0;
+}
+
+/*
  * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
  * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
  * userspace using openocd.
@@ -2121,7 +2189,7 @@ static void ftdi_process_read(struct work_struct *work)
                                 /* Note that the error flag is duplicated for
                                    every character received since we don't know
                                    which character it applied to */
-                                if (!usb_serial_handle_sysrq_char(port,
+                                if (!usb_serial_handle_sysrq_char(tty, port,
                                                 data[packet_offset + i]))
                                         tty_insert_flip_char(tty,
                                                 data[packet_offset + i],
@@ -2622,3 +2690,5 @@ MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
 module_param(product, ushort, 0);
 MODULE_PARM_DESC(product, "User specified product ID");
 
+module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override");
diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h
index f1d440a728a3..8c92b88166ae 100644
--- a/drivers/usb/serial/ftdi_sio.h
+++ b/drivers/usb/serial/ftdi_sio.h
@@ -506,6 +506,7 @@
  *
  * Armin Laeuger originally sent the PID for the UM 100 module.
  */
+#define FTDI_R2000KU_TRUE_RNG   0xFB80  /* R2000KU TRUE RNG */
 #define FTDI_ELV_UR100_PID      0xFB58  /* USB-RS232-Umsetzer (UR 100) */
 #define FTDI_ELV_UM100_PID      0xFB5A  /* USB-Modul UM 100 */
 #define FTDI_ELV_UO100_PID      0xFB5B  /* USB-Modul UO 100 */
@@ -614,6 +615,9 @@
 #define FTDI_CCSICDU20_0_PID    0xF9D0
 #define FTDI_CCSICDU40_1_PID    0xF9D1
 #define FTDI_CCSMACHX_2_PID     0xF9D2
+#define FTDI_CCSLOAD_N_GO_3_PID 0xF9D3
+#define FTDI_CCSICDU64_4_PID    0xF9D4
+#define FTDI_CCSPRIME8_5_PID    0xF9D5
 
 /* Inside Accesso contactless reader (http://www.insidefr.com) */
 #define INSIDE_ACCESSO          0xFAD0
@@ -736,6 +740,15 @@
 #define FTDI_PYRAMID_PID        0xE6C8  /* Pyramid Appliance Display */
 
 /*
+ * NDI (www.ndigital.com) product ids
+ */
+#define FTDI_NDI_HUC_PID                0xDA70  /* NDI Host USB Converter */
+#define FTDI_NDI_SPECTRA_SCU_PID        0xDA71  /* NDI Spectra SCU */
+#define FTDI_NDI_FUTURE_2_PID           0xDA72  /* NDI future device #2 */
+#define FTDI_NDI_FUTURE_3_PID           0xDA73  /* NDI future device #3 */
+#define FTDI_NDI_AURORA_SCU_PID         0xDA74  /* NDI Aurora SCU */
+
+/*
  * Posiflex inc retail equipment (http://www.posiflex.com.tw)
  */
 #define POSIFLEX_VID            0x0d3a  /* Vendor ID */
@@ -848,9 +861,6 @@
 #define TML_VID                 0x1B91  /* Vendor ID */
 #define TML_USB_SERIAL_PID      0x0064  /* USB - Serial Converter */
 
-/* NDI Polaris System */
-#define FTDI_NDI_HUC_PID        0xDA70
-
 /* Propox devices */
 #define FTDI_PROPOX_JTAGCABLEII_PID     0xD738
 
@@ -934,6 +944,29 @@
 #define MARVELL_VID             0x9e88
 #define MARVELL_SHEEVAPLUG_PID  0x9e8f
 
+#define FTDI_TURTELIZER_PID     0xBDC8 /* JTAG/RS-232 adapter by egnite GmBH */
+
+/*
+ * GN Otometrics (http://www.otometrics.com)
+ * Submitted by Ville Sundberg.
+ */
+#define GN_OTOMETRICS_VID       0x0c33  /* Vendor ID */
+#define AURICAL_USB_PID         0x0010  /* Aurical USB Audiometer */
+
+/*
+ * Bayer Ascensia Contour blood glucose meter USB-converter cable.
+ * http://winglucofacts.com/cables/
+ */
+#define BAYER_VID                      0x1A79
+#define BAYER_CONTOUR_CABLE_PID        0x6001
+
+/*
+ * Marvell OpenRD Base, Client
+ * http://www.open-rd.org
+ * OpenRD Base, Client use VID 0x0403
+ */
+#define MARVELL_OPENRD_PID      0x9e90
+
 /*
  *   BmRequestType:  1100 0000b
  *   bRequest:       FTDI_E2_READ
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 932d6241b787..ce57f6a32bdf 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -424,10 +424,17 @@ static void flush_and_resubmit_read_urb(struct usb_serial_port *port)
         if (!tty)
                 goto done;
 
-        /* Push data to tty */
-        for (i = 0; i < urb->actual_length; i++, ch++) {
-                if (!usb_serial_handle_sysrq_char(port, *ch))
-                        tty_insert_flip_char(tty, *ch, TTY_NORMAL);
+        /* The per character mucking around with sysrq path it too slow for
+           stuff like 3G modems, so shortcircuit it in the 99.9999999% of cases
+           where the USB serial is not a console anyway */
+        if (!port->console || !port->sysrq)
+                tty_insert_flip_string(tty, ch, urb->actual_length);
+        else {
+                /* Push data to tty */
+                for (i = 0; i < urb->actual_length; i++, ch++) {
+                        if (!usb_serial_handle_sysrq_char(tty, port, *ch))
+                                tty_insert_flip_char(tty, *ch, TTY_NORMAL);
+                }
         }
         tty_flip_buffer_push(tty);
         tty_kref_put(tty);
@@ -527,11 +534,12 @@ void usb_serial_generic_unthrottle(struct tty_struct *tty)
         }
 }
 
-int usb_serial_handle_sysrq_char(struct usb_serial_port *port, unsigned int ch)
+int usb_serial_handle_sysrq_char(struct tty_struct *tty,
+                        struct usb_serial_port *port, unsigned int ch)
 {
         if (port->sysrq && port->console) {
                 if (ch && time_before(jiffies, port->sysrq)) {
-                        handle_sysrq(ch, tty_port_tty_get(&port->port));
+                        handle_sysrq(ch, tty);
                         port->sysrq = 0;
                         return 1;
                 }
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index bfc5ce000ef9..ccd4dd340d2c 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -521,7 +521,7 @@ static int mos7720_chars_in_buffer(struct tty_struct *tty)
         mos7720_port = usb_get_serial_port_data(port);
         if (mos7720_port == NULL) {
                 dbg("%s:leaving ...........", __func__);
-                return -ENODEV;
+                return 0;
         }
 
         for (i = 0; i < NUM_URBS; ++i) {
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index c40f95c1951c..270009afdf77 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -26,6 +26,7 @@
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/tty.h>
 #include <linux/tty_driver.h>
 #include <linux/tty_flip.h>
@@ -123,10 +124,13 @@
 #define BANDB_DEVICE_ID_USOPTL4_4       0xAC44
 #define BANDB_DEVICE_ID_USOPTL4_2       0xAC42
 
-/* This driver also supports the ATEN UC2324 device since it is mos7840 based
- *  - if I knew the device id it would also support the ATEN UC2322 */
+/* This driver also supports
+ * ATEN UC2324 device using Moschip MCS7840
+ * ATEN UC2322 device using Moschip MCS7820
+ */
 #define USB_VENDOR_ID_ATENINTL          0x0557
 #define ATENINTL_DEVICE_ID_UC2324       0x2011
+#define ATENINTL_DEVICE_ID_UC2322       0x7820
 
 /* Interrupt Routine Defines    */
 
@@ -176,6 +180,7 @@ static struct usb_device_id moschip_port_id_table[] = {
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4)},
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2)},
         {USB_DEVICE(USB_VENDOR_ID_ATENINTL, ATENINTL_DEVICE_ID_UC2324)},
+        {USB_DEVICE(USB_VENDOR_ID_ATENINTL, ATENINTL_DEVICE_ID_UC2322)},
         {}                      /* terminating entry */
 };
 
@@ -185,6 +190,7 @@ static __devinitdata struct usb_device_id moschip_id_table_combined[] = {
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4)},
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2)},
         {USB_DEVICE(USB_VENDOR_ID_ATENINTL, ATENINTL_DEVICE_ID_UC2324)},
+        {USB_DEVICE(USB_VENDOR_ID_ATENINTL, ATENINTL_DEVICE_ID_UC2322)},
         {}                      /* terminating entry */
 };
 
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 575816e6ba37..c784ddbe7b61 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -66,8 +66,10 @@ static int  option_tiocmget(struct tty_struct *tty, struct file *file);
 static int  option_tiocmset(struct tty_struct *tty, struct file *file,
                                 unsigned int set, unsigned int clear);
 static int  option_send_setup(struct usb_serial_port *port);
+#ifdef CONFIG_PM
 static int  option_suspend(struct usb_serial *serial, pm_message_t message);
 static int  option_resume(struct usb_serial *serial);
+#endif
 
 /* Vendor and product IDs */
 #define OPTION_VENDOR_ID                        0x0AF0
@@ -205,7 +207,9 @@ static int  option_resume(struct usb_serial *serial);
 #define NOVATELWIRELESS_PRODUCT_MC727           0x4100
 #define NOVATELWIRELESS_PRODUCT_MC950D          0x4400
 #define NOVATELWIRELESS_PRODUCT_U727            0x5010
+#define NOVATELWIRELESS_PRODUCT_MC727_NEW       0x5100
 #define NOVATELWIRELESS_PRODUCT_MC760           0x6000
+#define NOVATELWIRELESS_PRODUCT_OVMC760         0x6002
 
 /* FUTURE NOVATEL PRODUCTS */
 #define NOVATELWIRELESS_PRODUCT_EVDO_HIGHSPEED  0X6001
@@ -258,11 +262,6 @@ static int  option_resume(struct usb_serial *serial);
 #define AXESSTEL_VENDOR_ID                      0x1726
 #define AXESSTEL_PRODUCT_MV110H                 0x1000
 
-#define ONDA_VENDOR_ID                          0x19d2
-#define ONDA_PRODUCT_MSA501HS                   0x0001
-#define ONDA_PRODUCT_ET502HS                    0x0002
-#define ONDA_PRODUCT_MT503HS                    0x2000
-
 #define BANDRICH_VENDOR_ID                      0x1A8D
 #define BANDRICH_PRODUCT_C100_1                 0x1002
 #define BANDRICH_PRODUCT_C100_2                 0x1003
@@ -300,6 +299,7 @@ static int  option_resume(struct usb_serial *serial);
 #define ZTE_PRODUCT_MF628                       0x0015
 #define ZTE_PRODUCT_MF626                       0x0031
 #define ZTE_PRODUCT_CDMA_TECH                   0xfffe
+#define ZTE_PRODUCT_AC8710                      0xfff1
 
 #define BENQ_VENDOR_ID                          0x04a5
 #define BENQ_PRODUCT_H10                        0x4068
@@ -307,11 +307,25 @@ static int  option_resume(struct usb_serial *serial);
 #define DLINK_VENDOR_ID                         0x1186
 #define DLINK_PRODUCT_DWM_652                   0x3e04
 
+#define QISDA_VENDOR_ID                         0x1da5
+#define QISDA_PRODUCT_H21_4512                  0x4512
+#define QISDA_PRODUCT_H21_4523                  0x4523
+#define QISDA_PRODUCT_H20_4515                  0x4515
+#define QISDA_PRODUCT_H20_4519                  0x4519
+
 
 /* TOSHIBA PRODUCTS */
 #define TOSHIBA_VENDOR_ID                       0x0930
 #define TOSHIBA_PRODUCT_HSDPA_MINICARD          0x1302
 
+#define ALINK_VENDOR_ID                         0x1e0e
+#define ALINK_PRODUCT_3GU                       0x9200
+
+/* ALCATEL PRODUCTS */
+#define ALCATEL_VENDOR_ID                       0x1bbb
+#define ALCATEL_PRODUCT_X060S                   0x0000
+
+
 static struct usb_device_id option_ids[] = {
         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
@@ -428,8 +442,10 @@ static struct usb_device_id option_ids[] = {
         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727_NEW) }, /* Novatel MC727/U727/USB727 refresh */
         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U727) }, /* Novatel MC727/U727/USB727 */
         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC760) }, /* Novatel MC760/U760/USB760 */
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_OVMC760) }, /* Novatel Ovation MC760 */
         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_FULLSPEED) }, /* Novatel HSPA product */
         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_FULLSPEED) }, /* Novatel EVDO Embedded product */
         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_FULLSPEED) }, /* Novatel HSPA Embedded product */
@@ -463,42 +479,6 @@ static struct usb_device_id option_ids[] = {
         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
         { USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
-        { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MSA501HS) },
-        { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0003) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0004) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0005) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0006) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0007) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0008) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0009) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x000a) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x000b) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x000c) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x000d) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x000e) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x000f) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0010) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0011) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0012) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0013) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0014) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0015) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0016) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0017) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0018) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0019) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0020) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0021) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0022) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0023) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0024) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0025) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0026) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0027) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0028) },
-        { USB_DEVICE(ONDA_VENDOR_ID, 0x0029) },
-        { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_MT503HS) },
         { USB_DEVICE(YISO_VENDOR_ID, YISO_PRODUCT_U893) },
         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
         { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
@@ -523,14 +503,85 @@ static struct usb_device_id option_ids[] = {
         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
         { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
         { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) },
-        { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622) },
-        { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF626) },
-        { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628) },
-        { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622, 0xff, 0xff, 0xff) }, /* ZTE WCDMA products */
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0002, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0003, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0004, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0005, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0006, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0007, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0008, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0009, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x000a, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x000b, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x000c, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x000d, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x000e, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x000f, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0010, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0011, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0012, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0013, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0016, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0017, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0018, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0019, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0020, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0021, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0022, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0023, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0024, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0025, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0026, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0028, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0029, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0030, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF626, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0032, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0033, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0037, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0039, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0042, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0043, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0048, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0049, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0051, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0052, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0054, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0055, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0057, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0058, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0061, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0062, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0063, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0064, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0066, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0069, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0076, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0078, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0082, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0086, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x2002, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x2003, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0014, 0xff, 0xff, 0xff) }, /* ZTE CDMA products */
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0027, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0059, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0060, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0070, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0073, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_AC8710, 0xff, 0xff, 0xff) },
         { USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_H10) },
         { USB_DEVICE(DLINK_VENDOR_ID, DLINK_PRODUCT_DWM_652) },
-        { USB_DEVICE(0x1da5, 0x4515) }, /* BenQ H20 */
+        { USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H21_4512) },
+        { USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H21_4523) },
+        { USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H20_4515) },
+        { USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H20_4519) },
         { USB_DEVICE(TOSHIBA_VENDOR_ID, TOSHIBA_PRODUCT_HSDPA_MINICARD ) }, /* Toshiba 3G HSDPA == Novatel Expedite EU870D MiniCard */
+        { USB_DEVICE(ALINK_VENDOR_ID, 0x9000) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ALINK_VENDOR_ID, ALINK_PRODUCT_3GU, 0xff, 0xff, 0xff) },
+        { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S) },
         { } /* Terminating entry */
 };
 MODULE_DEVICE_TABLE(usb, option_ids);
@@ -539,8 +590,10 @@ static struct usb_driver option_driver = {
         .name       = "option",
         .probe      = usb_serial_probe,
         .disconnect = usb_serial_disconnect,
+#ifdef CONFIG_PM
         .suspend    = usb_serial_suspend,
         .resume     = usb_serial_resume,
+#endif
         .id_table   = option_ids,
         .no_dynamic_id =        1,
 };
@@ -572,8 +625,10 @@ static struct usb_serial_driver option_1port_device = {
         .disconnect        = option_disconnect,
         .release           = option_release,
         .read_int_callback = option_instat_callback,
+#ifdef CONFIG_PM
         .suspend           = option_suspend,
         .resume            = option_resume,
+#endif
 };
 
 static int debug;
@@ -732,7 +787,6 @@ static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
                 memcpy(this_urb->transfer_buffer, buf, todo);
                 this_urb->transfer_buffer_length = todo;
 
-                this_urb->dev = port->serial->dev;
                 err = usb_submit_urb(this_urb, GFP_ATOMIC);
                 if (err) {
                         dbg("usb_submit_urb %p (write bulk) failed "
@@ -816,7 +870,6 @@ static void option_instat_callback(struct urb *urb)
         int status = urb->status;
         struct usb_serial_port *port =  urb->context;
         struct option_port_private *portdata = usb_get_serial_port_data(port);
-        struct usb_serial *serial = port->serial;
 
         dbg("%s", __func__);
         dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata);
@@ -860,7 +913,6 @@ static void option_instat_callback(struct urb *urb)
 
         /* Resubmit urb so we continue receiving IRQ data */
         if (status != -ESHUTDOWN && status != -ENOENT) {
-                urb->dev = serial->dev;
                 err = usb_submit_urb(urb, GFP_ATOMIC);
                 if (err)
                         dbg("%s: resubmit intr urb failed. (%d)",
@@ -913,7 +965,6 @@ static int option_open(struct tty_struct *tty,
                         struct usb_serial_port *port, struct file *filp)
 {
         struct option_port_private *portdata;
-        struct usb_serial *serial = port->serial;
         int i, err;
         struct urb *urb;
 
@@ -921,23 +972,11 @@ static int option_open(struct tty_struct *tty,
 
         dbg("%s", __func__);
 
-        /* Reset low level data toggle and start reading from endpoints */
+        /* Start reading from the IN endpoint */
         for (i = 0; i < N_IN_URB; i++) {
                 urb = portdata->in_urbs[i];
                 if (!urb)
                         continue;
-                if (urb->dev != serial->dev) {
-                        dbg("%s: dev %p != %p", __func__,
-                                urb->dev, serial->dev);
-                        continue;
-                }
-
-                /*
-                 * make sure endpoint data toggle is synchronized with the
-                 * device
-                 */
-                usb_clear_halt(urb->dev, urb->pipe);
-
                 err = usb_submit_urb(urb, GFP_KERNEL);
                 if (err) {
                         dbg("%s: submit urb %d failed (%d) %d",
@@ -946,16 +985,6 @@ static int option_open(struct tty_struct *tty,
                 }
         }
 
-        /* Reset low level data toggle on out endpoints */
-        for (i = 0; i < N_OUT_URB; i++) {
-                urb = portdata->out_urbs[i];
-                if (!urb)
-                        continue;
-                urb->dev = serial->dev;
-                /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
-                                usb_pipeout(urb->pipe), 0); */
-        }
-
         option_send_setup(port);
 
         return 0;
@@ -1195,6 +1224,7 @@ static void option_release(struct usb_serial *serial)
         }
 }
 
+#ifdef CONFIG_PM
 static int option_suspend(struct usb_serial *serial, pm_message_t message)
 {
         dbg("%s entered", __func__);
@@ -1218,7 +1248,6 @@ static int option_resume(struct usb_serial *serial)
                         dbg("%s: No interrupt URB for port %d\n", __func__, i);
                         continue;
                 }
-                port->interrupt_in_urb->dev = serial->dev;
                 err = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO);
                 dbg("Submitted interrupt URB for port %d (result %d)", i, err);
                 if (err < 0) {
@@ -1254,6 +1283,7 @@ static int option_resume(struct usb_serial *serial)
         }
         return 0;
 }
+#endif
 
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index ec6c132a25b5..3e86815b2705 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -94,6 +94,8 @@ static struct usb_device_id id_table [] = {
         { USB_DEVICE(YCCABLE_VENDOR_ID, YCCABLE_PRODUCT_ID) },
         { USB_DEVICE(SUPERIAL_VENDOR_ID, SUPERIAL_PRODUCT_ID) },
         { USB_DEVICE(HP_VENDOR_ID, HP_LD220_PRODUCT_ID) },
+        { USB_DEVICE(CRESSI_VENDOR_ID, CRESSI_EDY_PRODUCT_ID) },
+        { USB_DEVICE(SONY_VENDOR_ID, SONY_QN3USB_PRODUCT_ID) },
         { }                                     /* Terminating entry */
 };
 
@@ -971,18 +973,46 @@ exit:
                         __func__, retval);
 }
 
+static void pl2303_push_data(struct tty_struct *tty,
+                struct usb_serial_port *port, struct urb *urb,
+                u8 line_status)
+{
+        unsigned char *data = urb->transfer_buffer;
+        /* get tty_flag from status */
+        char tty_flag = TTY_NORMAL;
+        /* break takes precedence over parity, */
+        /* which takes precedence over framing errors */
+        if (line_status & UART_BREAK_ERROR)
+                tty_flag = TTY_BREAK;
+        else if (line_status & UART_PARITY_ERROR)
+                tty_flag = TTY_PARITY;
+        else if (line_status & UART_FRAME_ERROR)
+                tty_flag = TTY_FRAME;
+        dbg("%s - tty_flag = %d", __func__, tty_flag);
+
+        tty_buffer_request_room(tty, urb->actual_length + 1);
+        /* overrun is special, not associated with a char */
+        if (line_status & UART_OVERRUN_ERROR)
+                tty_insert_flip_char(tty, 0, TTY_OVERRUN);
+        if (port->console && port->sysrq) {
+                int i;
+                for (i = 0; i < urb->actual_length; ++i)
+                        if (!usb_serial_handle_sysrq_char(tty, port, data[i]))
+                                tty_insert_flip_char(tty, data[i], tty_flag);
+        } else
+                tty_insert_flip_string(tty, data, urb->actual_length);
+        tty_flip_buffer_push(tty);
+}
+
 static void pl2303_read_bulk_callback(struct urb *urb)
 {
         struct usb_serial_port *port =  urb->context;
         struct pl2303_private *priv = usb_get_serial_port_data(port);
         struct tty_struct *tty;
-        unsigned char *data = urb->transfer_buffer;
         unsigned long flags;
-        int i;
         int result;
         int status = urb->status;
         u8 line_status;
-        char tty_flag;
 
         dbg("%s - port %d", __func__, port->number);
 
@@ -1010,10 +1040,7 @@ static void pl2303_read_bulk_callback(struct urb *urb)
         }
 
         usb_serial_debug_data(debug, &port->dev, __func__,
-                              urb->actual_length, data);
-
-        /* get tty_flag from status */
-        tty_flag = TTY_NORMAL;
+                              urb->actual_length, urb->transfer_buffer);
 
         spin_lock_irqsave(&priv->lock, flags);
         line_status = priv->line_status;
@@ -1021,26 +1048,9 @@ static void pl2303_read_bulk_callback(struct urb *urb)
         spin_unlock_irqrestore(&priv->lock, flags);
         wake_up_interruptible(&priv->delta_msr_wait);
 
-        /* break takes precedence over parity, */
-        /* which takes precedence over framing errors */
-        if (line_status & UART_BREAK_ERROR)
-                tty_flag = TTY_BREAK;
-        else if (line_status & UART_PARITY_ERROR)
-                tty_flag = TTY_PARITY;
-        else if (line_status & UART_FRAME_ERROR)
-                tty_flag = TTY_FRAME;
-        dbg("%s - tty_flag = %d", __func__, tty_flag);
-
         tty = tty_port_tty_get(&port->port);
         if (tty && urb->actual_length) {
-                tty_buffer_request_room(tty, urb->actual_length + 1);
-                /* overrun is special, not associated with a char */
-                if (line_status & UART_OVERRUN_ERROR)
-                        tty_insert_flip_char(tty, 0, TTY_OVERRUN);
-                for (i = 0; i < urb->actual_length; ++i)
-                        if (!usb_serial_handle_sysrq_char(port, data[i]))
-                                tty_insert_flip_char(tty, data[i], tty_flag);
-                tty_flip_buffer_push(tty);
+                pl2303_push_data(tty, port, urb, line_status);
         }
         tty_kref_put(tty);
         /* Schedule the next read _if_ we are still open */
diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h
index 1d7a22e3a9fd..ee9505e1dd92 100644
--- a/drivers/usb/serial/pl2303.h
+++ b/drivers/usb/serial/pl2303.h
@@ -122,3 +122,11 @@
 /* Hewlett-Packard LD220-HP POS Pole Display */
 #define HP_VENDOR_ID            0x03f0
 #define HP_LD220_PRODUCT_ID     0x3524
+
+/* Cressi Edy (diving computer) PC interface */
+#define CRESSI_VENDOR_ID        0x04b8
+#define CRESSI_EDY_PRODUCT_ID   0x0521
+
+/* Sony, USB data cable for CMD-Jxx mobile phones */
+#define SONY_VENDOR_ID          0x054c
+#define SONY_QN3USB_PRODUCT_ID  0x0437
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index 032f7aeb40a4..f48d05e0acc1 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -181,35 +181,50 @@ static const struct sierra_iface_info direct_ip_interface_blacklist = {
 };
 
 static struct usb_device_id id_table [] = {
+        { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */
+        { USB_DEVICE(0x03F0, 0x1B1D) }, /* HP ev2200 a.k.a MC5720 */
+        { USB_DEVICE(0x03F0, 0x1E1D) }, /* HP hs2300 a.k.a MC8775 */
+
         { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
         { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
         { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */
-        { USB_DEVICE(0x03f0, 0x1b1d) }, /* HP ev2200 a.k.a MC5720 */
         { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
-        { USB_DEVICE(0x1199, 0x0024) }, /* Sierra Wireless MC5727 */
         { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */
+        { USB_DEVICE(0x1199, 0x0022) }, /* Sierra Wireless EM5725 */
+        { USB_DEVICE(0x1199, 0x0024) }, /* Sierra Wireless MC5727 */
+        { USB_DEVICE(0x1199, 0x0224) }, /* Sierra Wireless MC5727 */
         { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
         { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */
+        { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */
         { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */
-         /* Sierra Wireless C597 */
+        /* Sierra Wireless C597 */
         { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) },
-         /* Sierra Wireless Device */
+        /* Sierra Wireless T598 */
         { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0025, 0xFF, 0xFF, 0xFF) },
-        { USB_DEVICE(0x1199, 0x0026) }, /* Sierra Wireless Device */
-        { USB_DEVICE(0x1199, 0x0027) }, /* Sierra Wireless Device */
-        { USB_DEVICE(0x1199, 0x0028) }, /* Sierra Wireless Device */
+        { USB_DEVICE(0x1199, 0x0026) }, /* Sierra Wireless T11 */
+        { USB_DEVICE(0x1199, 0x0027) }, /* Sierra Wireless AC402 */
+        { USB_DEVICE(0x1199, 0x0028) }, /* Sierra Wireless MC5728 */
+        { USB_DEVICE(0x1199, 0x0029) }, /* Sierra Wireless Device */
 
         { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
-        { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */
         { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
+        { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */
+        { USB_DEVICE(0x1199, 0x6805) }, /* Sierra Wireless MC8765 */
+        { USB_DEVICE(0x1199, 0x6808) }, /* Sierra Wireless MC8755 */
+        { USB_DEVICE(0x1199, 0x6809) }, /* Sierra Wireless MC8765 */
         { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */
-        { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 (Lenovo) */
+        { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 */
         { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */
-        { USB_DEVICE(0x03f0, 0x1e1d) }, /* HP hs2300 a.k.a MC8775 */
+        { USB_DEVICE(0x1199, 0x6816) }, /* Sierra Wireless MC8775 */
         { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
         { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */
+        { USB_DEVICE(0x1199, 0x6822) }, /* Sierra Wireless AirCard 875E */
         { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780 */
         { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781 */
+        { USB_DEVICE(0x1199, 0x6834) }, /* Sierra Wireless MC8780 */
+        { USB_DEVICE(0x1199, 0x6835) }, /* Sierra Wireless MC8781 */
+        { USB_DEVICE(0x1199, 0x6838) }, /* Sierra Wireless MC8780 */
+        { USB_DEVICE(0x1199, 0x6839) }, /* Sierra Wireless MC8781 */
         { USB_DEVICE(0x1199, 0x683A) }, /* Sierra Wireless MC8785 */
         { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite */
         /* Sierra Wireless MC8790, MC8791, MC8792 Composite */
@@ -227,16 +242,13 @@ static struct usb_device_id id_table [] = {
         { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */
         /* Sierra Wireless C885 */
         { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6880, 0xFF, 0xFF, 0xFF)},
-        /* Sierra Wireless Device */
+        /* Sierra Wireless C888, Air Card 501, USB 303, USB 304 */
         { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6890, 0xFF, 0xFF, 0xFF)},
-        /* Sierra Wireless Device */
+        /* Sierra Wireless C22/C33 */
         { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6891, 0xFF, 0xFF, 0xFF)},
-        /* Sierra Wireless Device */
+        /* Sierra Wireless HSPA Non-Composite Device */
         { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)},
-
-        { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */
-        { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */
-
+        { USB_DEVICE(0x1199, 0x6893) }, /* Sierra Wireless Device */
         { USB_DEVICE(0x1199, 0x68A3),   /* Sierra Wireless Direct IP modems */
           .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist
         },
@@ -814,7 +826,7 @@ static int sierra_startup(struct usb_serial *serial)
         return 0;
 }
 
-static void sierra_disconnect(struct usb_serial *serial)
+static void sierra_release(struct usb_serial *serial)
 {
         int i;
         struct usb_serial_port *port;
@@ -830,7 +842,6 @@ static void sierra_disconnect(struct usb_serial *serial)
                 if (!portdata)
                         continue;
                 kfree(portdata);
-                usb_set_serial_port_data(port, NULL);
         }
 }
 
@@ -853,7 +864,7 @@ static struct usb_serial_driver sierra_device = {
         .tiocmget          = sierra_tiocmget,
         .tiocmset          = sierra_tiocmset,
         .attach            = sierra_startup,
-        .disconnect        = sierra_disconnect,
+        .release           = sierra_release,
         .read_int_callback = sierra_instat_callback,
 };
 
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index 991d8232e376..3bc609fe2242 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -191,7 +191,6 @@ static struct usb_device_id ti_id_table_5052[5+TI_EXTRA_VID_PID_COUNT+1] = {
         { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) },
         { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) },
         { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) },
-        { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) },
 };
 
 static struct usb_device_id ti_id_table_combined[14+2*TI_EXTRA_VID_PID_COUNT+1] = {
@@ -728,7 +727,7 @@ static int ti_write_room(struct tty_struct *tty)
         dbg("%s - port %d", __func__, port->number);
 
         if (tport == NULL)
-                return -ENODEV;
+                return 0;
 
         spin_lock_irqsave(&tport->tp_lock, flags);
         room = ti_buf_space_avail(tport->tp_write_buf);
@@ -749,7 +748,7 @@ static int ti_chars_in_buffer(struct tty_struct *tty)
         dbg("%s - port %d", __func__, port->number);
 
         if (tport == NULL)
-                return -ENODEV;
+                return 0;
 
         spin_lock_irqsave(&tport->tp_lock, flags);
         chars = ti_buf_data_avail(tport->tp_write_buf);
@@ -1658,7 +1657,7 @@ static int ti_do_download(struct usb_device *dev, int pipe,
         u8 cs = 0;
         int done;
         struct ti_firmware_header *header;
-        int status;
+        int status = 0;
         int len;
 
         for (pos = sizeof(struct ti_firmware_header); pos < size; pos++)
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index d595aa5586a7..99188c92068b 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -21,6 +21,7 @@
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/tty.h>
 #include <linux/tty_driver.h>
 #include <linux/tty_flip.h>
@@ -31,6 +32,7 @@
 #include <linux/mutex.h>
 #include <linux/list.h>
 #include <linux/uaccess.h>
+#include <linux/serial.h>
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
 #include "pl2303.h"
@@ -183,6 +185,7 @@ static int serial_open (struct tty_struct *tty, struct file *filp)
         struct usb_serial_port *port;
         unsigned int portNumber;
         int retval = 0;
+        int first = 0;
 
         dbg("%s", __func__);
 
@@ -220,8 +223,9 @@ static int serial_open (struct tty_struct *tty, struct file *filp)
         tty->driver_data = port;
         tty_port_tty_set(&port->port, tty);
 
-        if (port->port.count == 1) {
-
+        /* If the console is attached, the device is already open */
+        if (port->port.count == 1 && !port->console) {
+                first = 1;
                 /* lock this module before we call it
                  * this may fail, which means we must bail out,
                  * safe because we are called with BKL held */
@@ -244,13 +248,21 @@ static int serial_open (struct tty_struct *tty, struct file *filp)
                 if (retval)
                         goto bailout_interface_put;
                 mutex_unlock(&serial->disc_mutex);
+                set_bit(ASYNCB_INITIALIZED, &port->port.flags);
         }
         mutex_unlock(&port->mutex);
         /* Now do the correct tty layer semantics */
         retval = tty_port_block_til_ready(&port->port, tty, filp);
-        if (retval == 0)
+        if (retval == 0) {
+                if (!first)
+                        usb_serial_put(serial);
                 return 0;
-
+        }
+        mutex_lock(&port->mutex);
+        if (first == 0)
+                goto bailout_mutex_unlock;
+        /* Undo the initial port actions */
+        mutex_lock(&serial->disc_mutex);
 bailout_interface_put:
         usb_autopm_put_interface(serial->interface);
 bailout_module_put:
@@ -333,8 +345,27 @@ static void serial_close(struct tty_struct *tty, struct file *filp)
 {
         struct usb_serial_port *port = tty->driver_data;
 
+        if (!port)
+                return;
+
         dbg("%s - port %d", __func__, port->number);
 
+        /* FIXME:
+           This leaves a very narrow race. Really we should do the
+           serial_do_free() on tty->shutdown(), but tty->shutdown can
+           be called from IRQ context and serial_do_free can sleep.
+
+           The right fix is probably to make the tty free (which is rare)
+           and thus tty->shutdown() occur via a work queue and simplify all
+           the drivers that use it.
+        */
+        if (tty_hung_up_p(filp)) {
+                /* serial_hangup already called serial_down at this point.
+                   Another user may have already reopened the port but
+                   serial_do_free is refcounted */
+                serial_do_free(port);
+                return;
+        }
 
         if (tty_port_close_start(&port->port, tty, filp) == 0)
                 return;
@@ -350,7 +381,8 @@ static void serial_hangup(struct tty_struct *tty)
         struct usb_serial_port *port = tty->driver_data;
         serial_do_down(port);
         tty_port_hangup(&port->port);
-        serial_do_free(port);
+        /* We must not free port yet - the USB serial layer depends on it's
+           continued existence */
 }
 
 static int serial_write(struct tty_struct *tty, const unsigned char *buf,
@@ -389,7 +421,6 @@ static int serial_chars_in_buffer(struct tty_struct *tty)
         struct usb_serial_port *port = tty->driver_data;
         dbg("%s = port %d", __func__, port->number);
 
-        WARN_ON(!port->port.count);
         /* if the device was unplugged then any remaining characters
            fell out of the connector ;) */
         if (port->serial->disconnected)
diff --git a/drivers/usb/storage/option_ms.c b/drivers/usb/storage/option_ms.c
index d41cc0a970f7..773a5cd38c5a 100644
--- a/drivers/usb/storage/option_ms.c
+++ b/drivers/usb/storage/option_ms.c
@@ -118,6 +118,9 @@ static int option_inquiry(struct us_data *us)
 
         result = memcmp(buffer+8, "Option", 6);
 
+        if (result != 0)
+                result = memcmp(buffer+8, "ZCOPTION", 8);
+
         /* Read the CSW */
         usb_stor_bulk_transfer_buf(us,
                         us->recv_bulk_pipe,
diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c
index fcb320217218..e20dc525d177 100644
--- a/drivers/usb/storage/transport.c
+++ b/drivers/usb/storage/transport.c
@@ -961,7 +961,7 @@ int usb_stor_Bulk_max_lun(struct us_data *us)
                                  US_BULK_GET_MAX_LUN, 
                                  USB_DIR_IN | USB_TYPE_CLASS | 
                                  USB_RECIP_INTERFACE,
-                                 0, us->ifnum, us->iobuf, 1, HZ);
+                                 0, us->ifnum, us->iobuf, 1, 10*HZ);
 
         US_DEBUGP("GetMaxLUN command result is %d, data is %d\n", 
                   result, us->iobuf[0]);
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 1b9c5dd0fb27..7477d411959f 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -838,6 +838,13 @@ UNUSUAL_DEV( 0x066f, 0x8000, 0x0001, 0x0001,
                 US_SC_DEVICE, US_PR_DEVICE, NULL,
                 US_FL_FIX_CAPACITY ),
 
+/* Reported by Rogerio Brito <rbrito@ime.usp.br> */
+UNUSUAL_DEV( 0x067b, 0x2317, 0x0001, 0x001,
+                "Prolific Technology, Inc.",
+                "Mass Storage Device",
+                US_SC_DEVICE, US_PR_DEVICE, NULL,
+                US_FL_NOT_LOCKABLE ),
+
 /* Reported by Richard -=[]=- <micro_flyer@hotmail.com> */
 /* Change to bcdDeviceMin (0x0100 to 0x0001) reported by
  * Thomas Bartosik <tbartdev@gmx-topmail.de> */
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index d6d65ef85f54..3b54b3940178 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -616,6 +616,8 @@ config FB_STI
         select FB_CFB_FILLRECT
         select FB_CFB_COPYAREA
         select FB_CFB_IMAGEBLIT
+        select STI_CONSOLE
+        select VT
         default y
         ---help---
           STI refers to the HP "Standard Text Interface" which is a set of
@@ -1117,12 +1119,13 @@ config FB_CARILLO_RANCH
 
 config FB_INTEL
         tristate "Intel 830M/845G/852GM/855GM/865G/915G/945G/945GM/965G/965GM support (EXPERIMENTAL)"
-        depends on EXPERIMENTAL && FB && PCI && X86 && AGP_INTEL
+        depends on EXPERIMENTAL && FB && PCI && X86 && AGP_INTEL && EMBEDDED
         select FB_MODE_HELPERS
         select FB_CFB_FILLRECT
         select FB_CFB_COPYAREA
         select FB_CFB_IMAGEBLIT
         select FB_BOOT_VESA_SUPPORT if FB_INTEL = y
+        depends on !DRM_I915
         help
           This driver supports the on-board graphics built in to the Intel
           830M/845G/852GM/855GM/865G/915G/915GM/945G/945GM/965G/965GM chipsets.
diff --git a/drivers/video/amba-clcd.c b/drivers/video/amba-clcd.c
index fb8163d181ab..a21efcd10b78 100644
--- a/drivers/video/amba-clcd.c
+++ b/drivers/video/amba-clcd.c
@@ -226,9 +226,10 @@ static int clcdfb_set_par(struct fb_info *info)
         clcdfb_enable(fb, regs.cntl);
 
 #ifdef DEBUG
-        printk(KERN_INFO "CLCD: Registers set to\n"
-               KERN_INFO "  %08x %08x %08x %08x\n"
-               KERN_INFO "  %08x %08x %08x %08x\n",
+        printk(KERN_INFO
+               "CLCD: Registers set to\n"
+               "  %08x %08x %08x %08x\n"
+               "  %08x %08x %08x %08x\n",
                 readl(fb->regs + CLCD_TIM0), readl(fb->regs + CLCD_TIM1),
                 readl(fb->regs + CLCD_TIM2), readl(fb->regs + CLCD_TIM3),
                 readl(fb->regs + CLCD_UBAS), readl(fb->regs + CLCD_LBAS),
diff --git a/drivers/video/atafb.c b/drivers/video/atafb.c
index 018850c116c6..8cd279be74e5 100644
--- a/drivers/video/atafb.c
+++ b/drivers/video/atafb.c
@@ -2405,6 +2405,9 @@ static int do_fb_set_var(struct fb_var_screeninfo *var, int isactive)
         return 0;
 }
 
+/* fbhw->encode_fix() must be called with fb_info->mm_lock held
+ * if it is called after the register_framebuffer() - not a case here
+ */
 static int atafb_get_fix(struct fb_fix_screeninfo *fix, struct fb_info *info)
 {
         struct atafb_par par;
@@ -2414,7 +2417,8 @@ static int atafb_get_fix(struct fb_fix_screeninfo *fix, struct fb_info *info)
         if (err)
                 return err;
         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
-        return fbhw->encode_fix(fix, &par);
+        err = fbhw->encode_fix(fix, &par);
+        return err;
 }
 
 static int atafb_get_var(struct fb_var_screeninfo *var, struct fb_info *info)
@@ -2743,7 +2747,9 @@ static int atafb_set_par(struct fb_info *info)
 
         /* Decode wanted screen parameters */
         fbhw->decode_var(&info->var, par);
+        mutex_lock(&info->mm_lock);
         fbhw->encode_fix(&info->fix, par);
+        mutex_unlock(&info->mm_lock);
 
         /* Set new videomode */
         ata_set_par(par);
diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index 5afd64482f55..da05f0801bb7 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -261,6 +261,9 @@ static inline void atmel_lcdfb_free_video_memory(struct atmel_lcdfb_info *sinfo)
 /**
  *      atmel_lcdfb_alloc_video_memory - Allocate framebuffer memory
  *      @sinfo: the frame buffer to allocate memory for
+ *      
+ *      This function is called only from the atmel_lcdfb_probe()
+ *      so no locking by fb_info->mm_lock around smem_len setting is needed.
  */
 static int atmel_lcdfb_alloc_video_memory(struct atmel_lcdfb_info *sinfo)
 {
diff --git a/drivers/video/aty/atyfb.h b/drivers/video/aty/atyfb.h
index 7691e73823d3..1f39a62f899b 100644
--- a/drivers/video/aty/atyfb.h
+++ b/drivers/video/aty/atyfb.h
@@ -187,6 +187,8 @@ struct atyfb_par {
         int mtrr_reg;
 #endif
         u32 mem_cntl;
+        struct crtc saved_crtc;
+        union aty_pll saved_pll;
 };
 
     /*
@@ -217,6 +219,7 @@ struct atyfb_par {
 #define M64F_XL_DLL             0x00080000
 #define M64F_MFB_FORCE_4        0x00100000
 #define M64F_HW_TRIPLE          0x00200000
+#define M64F_XL_MEM             0x00400000
     /*
      *  Register access
      */
diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
index 1207c208a30b..63d3739d43a8 100644
--- a/drivers/video/aty/atyfb_base.c
+++ b/drivers/video/aty/atyfb_base.c
@@ -66,6 +66,8 @@
 #include <linux/spinlock.h>
 #include <linux/wait.h>
 #include <linux/backlight.h>
+#include <linux/reboot.h>
+#include <linux/dmi.h>
 
 #include <asm/io.h>
 #include <linux/uaccess.h>
@@ -249,8 +251,6 @@ static int aty_init(struct fb_info *info);
 static int store_video_par(char *videopar, unsigned char m64_num);
 #endif
 
-static struct crtc saved_crtc;
-static union aty_pll saved_pll;
 static void aty_get_crtc(const struct atyfb_par *par, struct crtc *crtc);
 
 static void aty_set_crtc(const struct atyfb_par *par, const struct crtc *crtc);
@@ -261,6 +261,8 @@ static void set_off_pitch(struct atyfb_par *par, const struct fb_info *info);
 static int read_aty_sense(const struct atyfb_par *par);
 #endif
 
+static DEFINE_MUTEX(reboot_lock);
+static struct fb_info *reboot_info;
 
     /*
      *  Interface used by the world
@@ -361,8 +363,8 @@ static unsigned long phys_guiregbase[FB_MAX] __devinitdata = { 0, };
 #define ATI_CHIP_264GTPRO  (ATI_MODERN_SET | M64F_SDRAM_MAGIC_PLL | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D)
 #define ATI_CHIP_264LTPRO  (ATI_MODERN_SET | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D)
 
-#define ATI_CHIP_264XL     (ATI_MODERN_SET | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D | M64F_XL_DLL | M64F_MFB_FORCE_4)
-#define ATI_CHIP_MOBILITY  (ATI_MODERN_SET | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D | M64F_XL_DLL | M64F_MFB_FORCE_4 | M64F_MOBIL_BUS)
+#define ATI_CHIP_264XL     (ATI_MODERN_SET | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D | M64F_XL_DLL | M64F_MFB_FORCE_4 | M64F_XL_MEM)
+#define ATI_CHIP_MOBILITY  (ATI_MODERN_SET | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D | M64F_XL_DLL | M64F_MFB_FORCE_4 | M64F_XL_MEM | M64F_MOBIL_BUS)
 
 static struct {
         u16 pci_id;
@@ -539,6 +541,7 @@ static char ram_edo[] __devinitdata = "EDO";
 static char ram_sdram[] __devinitdata = "SDRAM (1:1)";
 static char ram_sgram[] __devinitdata = "SGRAM (1:1)";
 static char ram_sdram32[] __devinitdata = "SDRAM (2:1) (32-bit)";
+static char ram_wram[] __devinitdata = "WRAM";
 static char ram_off[] __devinitdata = "OFF";
 #endif /* CONFIG_FB_ATY_CT */
 
@@ -553,6 +556,10 @@ static char *aty_gx_ram[8] __devinitdata = {
 #ifdef CONFIG_FB_ATY_CT
 static char *aty_ct_ram[8] __devinitdata = {
         ram_off, ram_dram, ram_edo, ram_edo,
+        ram_sdram, ram_sgram, ram_wram, ram_resv
+};
+static char *aty_xl_ram[8] __devinitdata = {
+        ram_off, ram_dram, ram_edo, ram_edo,
         ram_sdram, ram_sgram, ram_sdram32, ram_resv
 };
 #endif /* CONFIG_FB_ATY_CT */
@@ -760,6 +767,17 @@ static void aty_set_crtc(const struct atyfb_par *par, const struct crtc *crtc)
 #endif /* CONFIG_FB_ATY_GENERIC_LCD */
 }
 
+static u32 calc_line_length(struct atyfb_par *par, u32 vxres, u32 bpp)
+{
+        u32 line_length = vxres * bpp / 8;
+
+        if (par->ram_type == SGRAM ||
+            (!M64_HAS(XL_MEM) && par->ram_type == WRAM))
+                line_length = (line_length + 63) & ~63;
+
+        return line_length;
+}
+
 static int aty_var_to_crtc(const struct fb_info *info,
         const struct fb_var_screeninfo *var, struct crtc *crtc)
 {
@@ -769,13 +787,14 @@ static int aty_var_to_crtc(const struct fb_info *info,
         u32 h_total, h_disp, h_sync_strt, h_sync_end, h_sync_dly, h_sync_wid, h_sync_pol;
         u32 v_total, v_disp, v_sync_strt, v_sync_end, v_sync_wid, v_sync_pol, c_sync;
         u32 pix_width, dp_pix_width, dp_chain_mask;
+        u32 line_length;
 
         /* input */
-        xres = var->xres;
+        xres = (var->xres + 7) & ~7;
         yres = var->yres;
-        vxres = var->xres_virtual;
+        vxres = (var->xres_virtual + 7) & ~7;
         vyres = var->yres_virtual;
-        xoffset = var->xoffset;
+        xoffset = (var->xoffset + 7) & ~7;
         yoffset = var->yoffset;
         bpp = var->bits_per_pixel;
         if (bpp == 16)
@@ -827,7 +846,9 @@ static int aty_var_to_crtc(const struct fb_info *info,
         } else
                 FAIL("invalid bpp");
 
-        if (vxres * vyres * bpp / 8 > info->fix.smem_len)
+        line_length = calc_line_length(par, vxres, bpp);
+
+        if (vyres * line_length > info->fix.smem_len)
                 FAIL("not enough video RAM");
 
         h_sync_pol = sync & FB_SYNC_HOR_HIGH_ACT ? 0 : 1;
@@ -969,7 +990,9 @@ static int aty_var_to_crtc(const struct fb_info *info,
         crtc->xoffset = xoffset;
         crtc->yoffset = yoffset;
         crtc->bpp = bpp;
-        crtc->off_pitch = ((yoffset*vxres+xoffset)*bpp/64) | (vxres<<19);
+        crtc->off_pitch =
+                ((yoffset * line_length + xoffset * bpp / 8) / 8) |
+                ((line_length / bpp) << 22);
         crtc->vline_crnt_vline = 0;
 
         crtc->h_tot_disp = h_total | (h_disp<<16);
@@ -1394,7 +1417,9 @@ static int atyfb_set_par(struct fb_info *info)
         }
         aty_st_8(DAC_MASK, 0xff, par);
 
-        info->fix.line_length = var->xres_virtual * var->bits_per_pixel/8;
+        info->fix.line_length = calc_line_length(par, var->xres_virtual,
+                                                 var->bits_per_pixel);
+
         info->fix.visual = var->bits_per_pixel <= 8 ?
                 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
 
@@ -1505,10 +1530,12 @@ static void set_off_pitch(struct atyfb_par *par, const struct fb_info *info)
 {
         u32 xoffset = info->var.xoffset;
         u32 yoffset = info->var.yoffset;
-        u32 vxres = par->crtc.vxres;
+        u32 line_length = info->fix.line_length;
         u32 bpp = info->var.bits_per_pixel;
 
-        par->crtc.off_pitch = ((yoffset * vxres + xoffset) * bpp / 64) | (vxres << 19);
+        par->crtc.off_pitch =
+                ((yoffset * line_length + xoffset * bpp / 8) / 8) |
+                ((line_length / bpp) << 22);
 }
 
 
@@ -2201,7 +2228,7 @@ static void __devinit aty_calc_mem_refresh(struct atyfb_par *par, int xclk)
         const int *refresh_tbl;
         int i, size;
 
-        if (IS_XL(par->pci_id) || IS_MOBILITY(par->pci_id)) {
+        if (M64_HAS(XL_MEM)) {
                 refresh_tbl = ragexl_tbl;
                 size = ARRAY_SIZE(ragexl_tbl);
         } else {
@@ -2335,7 +2362,10 @@ static int __devinit aty_init(struct fb_info *info)
                 par->pll_ops = &aty_pll_ct;
                 par->bus_type = PCI;
                 par->ram_type = (aty_ld_le32(CNFG_STAT0, par) & 0x07);
-                ramname = aty_ct_ram[par->ram_type];
+                if (M64_HAS(XL_MEM))
+                        ramname = aty_xl_ram[par->ram_type];
+                else
+                        ramname = aty_ct_ram[par->ram_type];
                 /* for many chips, the mclk is 67 MHz for SDRAM, 63 MHz otherwise */
                 if (par->pll_limits.mclk == 67 && par->ram_type < SDRAM)
                         par->pll_limits.mclk = 63;
@@ -2390,9 +2420,9 @@ static int __devinit aty_init(struct fb_info *info)
 #endif /* CONFIG_FB_ATY_CT */
 
         /* save previous video mode */
-        aty_get_crtc(par, &saved_crtc);
+        aty_get_crtc(par, &par->saved_crtc);
         if(par->pll_ops->get_pll)
-                par->pll_ops->get_pll(info, &saved_pll);
+                par->pll_ops->get_pll(info, &par->saved_pll);
 
         par->mem_cntl = aty_ld_le32(MEM_CNTL, par);
         gtb_memsize = M64_HAS(GTB_DSP);
@@ -2667,8 +2697,8 @@ static int __devinit aty_init(struct fb_info *info)
 
 aty_init_exit:
         /* restore video mode */
-        aty_set_crtc(par, &saved_crtc);
-        par->pll_ops->set_pll(info, &saved_pll);
+        aty_set_crtc(par, &par->saved_crtc);
+        par->pll_ops->set_pll(info, &par->saved_pll);
 
 #ifdef CONFIG_MTRR
         if (par->mtrr_reg >= 0) {
@@ -3502,6 +3532,11 @@ static int __devinit atyfb_pci_probe(struct pci_dev *pdev, const struct pci_devi
         par->mmap_map[1].prot_flag = _PAGE_E;
 #endif /* __sparc__ */
 
+        mutex_lock(&reboot_lock);
+        if (!reboot_info)
+                reboot_info = info;
+        mutex_unlock(&reboot_lock);
+
         return 0;
 
 err_release_io:
@@ -3614,8 +3649,8 @@ static void __devexit atyfb_remove(struct fb_info *info)
         struct atyfb_par *par = (struct atyfb_par *) info->par;
 
         /* restore video mode */
-        aty_set_crtc(par, &saved_crtc);
-        par->pll_ops->set_pll(info, &saved_pll);
+        aty_set_crtc(par, &par->saved_crtc);
+        par->pll_ops->set_pll(info, &par->saved_pll);
 
         unregister_framebuffer(info);
 
@@ -3661,6 +3696,11 @@ static void __devexit atyfb_pci_remove(struct pci_dev *pdev)
 {
         struct fb_info *info = pci_get_drvdata(pdev);
 
+        mutex_lock(&reboot_lock);
+        if (reboot_info == info)
+                reboot_info = NULL;
+        mutex_unlock(&reboot_lock);
+
         atyfb_remove(info);
 }
 
@@ -3808,6 +3848,56 @@ static int __init atyfb_setup(char *options)
 }
 #endif  /*  MODULE  */
 
+static int atyfb_reboot_notify(struct notifier_block *nb,
+                               unsigned long code, void *unused)
+{
+        struct atyfb_par *par;
+
+        if (code != SYS_RESTART)
+                return NOTIFY_DONE;
+
+        mutex_lock(&reboot_lock);
+
+        if (!reboot_info)
+                goto out;
+
+        if (!lock_fb_info(reboot_info))
+                goto out;
+
+        par = reboot_info->par;
+
+        /*
+         * HP OmniBook 500's BIOS doesn't like the state of the
+         * hardware after atyfb has been used. Restore the hardware
+         * to the original state to allow successful reboots.
+         */
+        aty_set_crtc(par, &par->saved_crtc);
+        par->pll_ops->set_pll(reboot_info, &par->saved_pll);
+
+        unlock_fb_info(reboot_info);
+ out:
+        mutex_unlock(&reboot_lock);
+
+        return NOTIFY_DONE;
+}
+
+static struct notifier_block atyfb_reboot_notifier = {
+        .notifier_call = atyfb_reboot_notify,
+};
+
+static const struct dmi_system_id atyfb_reboot_ids[] = {
+        {
+                .ident = "HP OmniBook 500",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "HP OmniBook PC"),
+                        DMI_MATCH(DMI_PRODUCT_VERSION, "HP OmniBook 500 FA"),
+                },
+        },
+
+        { }
+};
+
 static int __init atyfb_init(void)
 {
     int err1 = 1, err2 = 1;
@@ -3826,11 +3916,20 @@ static int __init atyfb_init(void)
     err2 = atyfb_atari_probe();
 #endif
 
-    return (err1 && err2) ? -ENODEV : 0;
+    if (err1 && err2)
+        return -ENODEV;
+
+    if (dmi_check_system(atyfb_reboot_ids))
+        register_reboot_notifier(&atyfb_reboot_notifier);
+
+    return 0;
 }
 
 static void __exit atyfb_exit(void)
 {
+        if (dmi_check_system(atyfb_reboot_ids))
+                unregister_reboot_notifier(&atyfb_reboot_notifier);
+
 #ifdef CONFIG_PCI
         pci_unregister_driver(&atyfb_driver);
 #endif
diff --git a/drivers/video/aty/mach64_accel.c b/drivers/video/aty/mach64_accel.c
index 0cc9724e61a2..51fcc0a2c94a 100644
--- a/drivers/video/aty/mach64_accel.c
+++ b/drivers/video/aty/mach64_accel.c
@@ -63,14 +63,17 @@ static void reset_GTC_3D_engine(const struct atyfb_par *par)
 void aty_init_engine(struct atyfb_par *par, struct fb_info *info)
 {
         u32 pitch_value;
+        u32 vxres;
 
         /* determine modal information from global mode structure */
-        pitch_value = info->var.xres_virtual;
+        pitch_value = info->fix.line_length / (info->var.bits_per_pixel / 8);
+        vxres = info->var.xres_virtual;
 
         if (info->var.bits_per_pixel == 24) {
                 /* In 24 bpp, the engine is in 8 bpp - this requires that all */
                 /* horizontal coordinates and widths must be adjusted */
                 pitch_value *= 3;
+                vxres *= 3;
         }
 
         /* On GTC (RagePro), we need to reset the 3D engine before */
@@ -133,7 +136,7 @@ void aty_init_engine(struct atyfb_par *par, struct fb_info *info)
         aty_st_le32(SC_LEFT, 0, par);
         aty_st_le32(SC_TOP, 0, par);
         aty_st_le32(SC_BOTTOM, par->crtc.vyres - 1, par);
-        aty_st_le32(SC_RIGHT, pitch_value - 1, par);
+        aty_st_le32(SC_RIGHT, vxres - 1, par);
 
         /* set background color to minimum value (usually BLACK) */
         aty_st_le32(DP_BKGD_CLR, 0, par);
diff --git a/drivers/video/backlight/jornada720_bl.c b/drivers/video/backlight/jornada720_bl.c
index c3ebb6b41ce1..7aed2565c1bd 100644
--- a/drivers/video/backlight/jornada720_bl.c
+++ b/drivers/video/backlight/jornada720_bl.c
@@ -72,7 +72,7 @@ static int jornada_bl_update_status(struct backlight_device *bd)
                 if (jornada_ssp_byte(SETBRIGHTNESS) != TXDUMMY) {
                         printk(KERN_INFO "bl : failed to set brightness\n");
                         ret = -ETIMEDOUT;
-                        goto out
+                        goto out;
                 }
 
                 /* at this point we expect that the mcu has accepted
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index e641584e212e..887166267443 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -145,6 +145,8 @@ static int pwm_backlight_suspend(struct platform_device *pdev,
         struct backlight_device *bl = platform_get_drvdata(pdev);
         struct pwm_bl_data *pb = dev_get_drvdata(&bl->dev);
 
+        if (pb->notify)
+                pb->notify(0);
         pwm_config(pb->pwm, 0, pb->period);
         pwm_disable(pb->pwm);
         return 0;
diff --git a/drivers/video/backlight/tdo24m.c b/drivers/video/backlight/tdo24m.c
index 1dae7f8f3c6b..51422fc4f606 100644
--- a/drivers/video/backlight/tdo24m.c
+++ b/drivers/video/backlight/tdo24m.c
@@ -356,7 +356,7 @@ static int __devinit tdo24m_probe(struct spi_device *spi)
         lcd->power = FB_BLANK_POWERDOWN;
         lcd->mode = MODE_VGA;   /* default to VGA */
 
-        lcd->buf = kmalloc(TDO24M_SPI_BUFF_SIZE, sizeof(GFP_KERNEL));
+        lcd->buf = kmalloc(TDO24M_SPI_BUFF_SIZE, GFP_KERNEL);
         if (lcd->buf == NULL) {
                 kfree(lcd);
                 return -ENOMEM;
diff --git a/drivers/video/cobalt_lcdfb.c b/drivers/video/cobalt_lcdfb.c
index 7bad24ed04ef..108b89e09a80 100644
--- a/drivers/video/cobalt_lcdfb.c
+++ b/drivers/video/cobalt_lcdfb.c
@@ -1,7 +1,7 @@
 /*
  *  Cobalt server LCD frame buffer driver.
  *
- *  Copyright (C) 2008  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ *  Copyright (C) 2008  Yoichi Yuasa <yuasa@linux-mips.org>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 471a9a60376a..3a44695b9c09 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -1082,7 +1082,6 @@ static void fbcon_init(struct vc_data *vc, int init)
         new_rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres);
         new_cols /= vc->vc_font.width;
         new_rows /= vc->vc_font.height;
-        vc_resize(vc, new_cols, new_rows);
 
         /*
          * We must always set the mode. The mode of the previous console
@@ -1111,10 +1110,11 @@ static void fbcon_init(struct vc_data *vc, int init)
          *  vc_{cols,rows}, but we must not set those if we are only
          *  resizing the console.
          */
-        if (!init) {
+        if (init) {
                 vc->vc_cols = new_cols;
                 vc->vc_rows = new_rows;
-        }
+        } else
+                vc_resize(vc, new_cols, new_rows);
 
         if (logo)
                 fbcon_prepare_logo(vc, info, cols, rows, new_cols, new_rows);
diff --git a/drivers/video/console/fbcon_rotate.h b/drivers/video/console/fbcon_rotate.h
index 75be5ce53dc5..e233444cda66 100644
--- a/drivers/video/console/fbcon_rotate.h
+++ b/drivers/video/console/fbcon_rotate.h
@@ -45,7 +45,7 @@ static inline void rotate_ud(const char *in, char *out, u32 width, u32 height)
         width = (width + 7) & ~7;
 
         for (i = 0; i < height; i++) {
-                for (j = 0; j < width; j++) {
+                for (j = 0; j < width - shift; j++) {
                         if (pattern_test_bit(j, i, width, in))
                                 pattern_set_bit(width - (1 + j + shift),
                                                 height - (1 + i),
diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c
index ef7870f5ea08..857b3668b3ba 100644
--- a/drivers/video/console/sticore.c
+++ b/drivers/video/console/sticore.c
@@ -957,9 +957,14 @@ static int __devinit sticore_pci_init(struct pci_dev *pd,
 #ifdef CONFIG_PCI
         unsigned long fb_base, rom_base;
         unsigned int fb_len, rom_len;
+        int err;
         struct sti_struct *sti;
         
-        pci_enable_device(pd);
+        err = pci_enable_device(pd);
+        if (err < 0) {
+                dev_err(&pd->dev, "Cannot enable PCI device\n");
+                return err;
+        }
 
         fb_base = pci_resource_start(pd, 0);
         fb_len = pci_resource_len(pd, 0);
@@ -1048,7 +1053,7 @@ static void __devinit sti_init_roms(void)
 
         /* Register drivers for native & PCI cards */
         register_parisc_driver(&pa_sti_driver);
-        pci_register_driver(&pci_sti_driver);
+        WARN_ON(pci_register_driver(&pci_sti_driver));
 
         /* if we didn't find the given default sti, take the first one */
         if (!default_sti)
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index f8a09bf8d0cd..a85c818be945 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -16,7 +16,6 @@
 #include <linux/compat.h>
 #include <linux/types.h>
 #include <linux/errno.h>
-#include <linux/smp_lock.h>
 #include <linux/kernel.h>
 #include <linux/major.h>
 #include <linux/slab.h>
@@ -1310,8 +1309,6 @@ static long fb_compat_ioctl(struct file *file, unsigned int cmd,
 
 static int
 fb_mmap(struct file *file, struct vm_area_struct * vma)
-__acquires(&info->lock)
-__releases(&info->lock)
 {
         int fbidx = iminor(file->f_path.dentry->d_inode);
         struct fb_info *info = registered_fb[fbidx];
@@ -1325,16 +1322,14 @@ __releases(&info->lock)
         off = vma->vm_pgoff << PAGE_SHIFT;
         if (!fb)
                 return -ENODEV;
+        mutex_lock(&info->mm_lock);
         if (fb->fb_mmap) {
                 int res;
-                mutex_lock(&info->lock);
                 res = fb->fb_mmap(info, vma);
-                mutex_unlock(&info->lock);
+                mutex_unlock(&info->mm_lock);
                 return res;
         }
 
-        mutex_lock(&info->lock);
-
         /* frame buffer memory */
         start = info->fix.smem_start;
         len = PAGE_ALIGN((start & ~PAGE_MASK) + info->fix.smem_len);
@@ -1342,13 +1337,13 @@ __releases(&info->lock)
                 /* memory mapped io */
                 off -= len;
                 if (info->var.accel_flags) {
-                        mutex_unlock(&info->lock);
+                        mutex_unlock(&info->mm_lock);
                         return -EINVAL;
                 }
                 start = info->fix.mmio_start;
                 len = PAGE_ALIGN((start & ~PAGE_MASK) + info->fix.mmio_len);
         }
-        mutex_unlock(&info->lock);
+        mutex_unlock(&info->mm_lock);
         start &= PAGE_MASK;
         if ((vma->vm_end - vma->vm_start + off) > len)
                 return -EINVAL;
@@ -1518,6 +1513,7 @@ register_framebuffer(struct fb_info *fb_info)
                         break;
         fb_info->node = i;
         mutex_init(&fb_info->lock);
+        mutex_init(&fb_info->mm_lock);
 
         fb_info->dev = device_create(fb_class, fb_info->device,
                                      MKDEV(FB_MAJOR, i), NULL, "fb%d", i);
diff --git a/drivers/video/fbmon.c b/drivers/video/fbmon.c
index 5c1a2c01778f..9ae9cd32bd06 100644
--- a/drivers/video/fbmon.c
+++ b/drivers/video/fbmon.c
@@ -256,8 +256,8 @@ static void fix_edid(unsigned char *edid, int fix)
 
 static int edid_checksum(unsigned char *edid)
 {
-        unsigned char i, csum = 0, all_null = 0;
-        int err = 0, fix = check_edid(edid);
+        unsigned char csum = 0, all_null = 0;
+        int i, err = 0, fix = check_edid(edid);
 
         if (fix)
                 fix_edid(edid, fix);
diff --git a/drivers/video/fsl-diu-fb.c b/drivers/video/fsl-diu-fb.c
index f153c581cbd7..72d68b3dc478 100644
--- a/drivers/video/fsl-diu-fb.c
+++ b/drivers/video/fsl-diu-fb.c
@@ -750,24 +750,26 @@ static void update_lcdc(struct fb_info *info)
 static int map_video_memory(struct fb_info *info)
 {
         phys_addr_t phys;
+        u32 smem_len = info->fix.line_length * info->var.yres_virtual;
 
         pr_debug("info->var.xres_virtual = %d\n", info->var.xres_virtual);
         pr_debug("info->var.yres_virtual = %d\n", info->var.yres_virtual);
         pr_debug("info->fix.line_length  = %d\n", info->fix.line_length);
+        pr_debug("MAP_VIDEO_MEMORY: smem_len = %u\n", smem_len);
 
-        info->fix.smem_len = info->fix.line_length * info->var.yres_virtual;
-        pr_debug("MAP_VIDEO_MEMORY: smem_len = %d\n", info->fix.smem_len);
-        info->screen_base = fsl_diu_alloc(info->fix.smem_len, &phys);
+        info->screen_base = fsl_diu_alloc(smem_len, &phys);
         if (info->screen_base == NULL) {
                 printk(KERN_ERR "Unable to allocate fb memory\n");
                 return -ENOMEM;
         }
+        mutex_lock(&info->mm_lock);
         info->fix.smem_start = (unsigned long) phys;
+        info->fix.smem_len = smem_len;
+        mutex_unlock(&info->mm_lock);
         info->screen_size = info->fix.smem_len;
 
         pr_debug("Allocated fb @ paddr=0x%08lx, size=%d.\n",
-                                info->fix.smem_start,
-                info->fix.smem_len);
+                 info->fix.smem_start, info->fix.smem_len);
         pr_debug("screen base %p\n", info->screen_base);
 
         return 0;
@@ -776,9 +778,11 @@ static int map_video_memory(struct fb_info *info)
 static void unmap_video_memory(struct fb_info *info)
 {
         fsl_diu_free(info->screen_base, info->fix.smem_len);
+        mutex_lock(&info->mm_lock);
         info->screen_base = NULL;
         info->fix.smem_start = 0;
         info->fix.smem_len = 0;
+        mutex_unlock(&info->mm_lock);
 }
 
 /*
@@ -1219,12 +1223,6 @@ static int __devinit install_fb(struct fb_info *info)
                 return -EINVAL;
         }
 
-        if (fsl_diu_set_par(info)) {
-                printk(KERN_ERR "fb_set_par failed");
-                fb_dealloc_cmap(&info->cmap);
-                return -EINVAL;
-        }
-
         if (register_framebuffer(info) < 0) {
                 printk(KERN_ERR "register_framebuffer failed");
                 unmap_video_memory(info);
diff --git a/drivers/video/hitfb.c b/drivers/video/hitfb.c
index 020db7fc9153..e7116a6d82d3 100644
--- a/drivers/video/hitfb.c
+++ b/drivers/video/hitfb.c
@@ -44,9 +44,6 @@ static struct fb_fix_screeninfo hitfb_fix __initdata = {
         .accel          = FB_ACCEL_NONE,
 };
 
-static u32 pseudo_palette[16];
-static struct fb_info fb_info;
-
 static inline void hitfb_accel_wait(void)
 {
         while (fb_readw(HD64461_GRCFGR) & HD64461_GRCFGR_ACCSTATUS) ;
@@ -331,6 +328,8 @@ static struct fb_ops hitfb_ops = {
 static int __init hitfb_probe(struct platform_device *dev)
 {
         unsigned short lcdclor, ldr3, ldvndr;
+        struct fb_info *info;
+        int ret;
 
         if (fb_get_options("hitfb", NULL))
                 return -ENODEV;
@@ -384,32 +383,53 @@ static int __init hitfb_probe(struct platform_device *dev)
                 break;
         }
 
-        fb_info.fbops = &hitfb_ops;
-        fb_info.var = hitfb_var;
-        fb_info.fix = hitfb_fix;
-        fb_info.pseudo_palette = pseudo_palette;
-        fb_info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN |
+        info = framebuffer_alloc(sizeof(u32) * 16, &dev->dev);
+        if (unlikely(!info))
+                return -ENOMEM;
+
+        info->fbops = &hitfb_ops;
+        info->var = hitfb_var;
+        info->fix = hitfb_fix;
+        info->pseudo_palette = info->par;
+        info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN |
                 FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_COPYAREA;
 
-        fb_info.screen_base = (void *)hitfb_fix.smem_start;
+        info->screen_base = (void *)hitfb_fix.smem_start;
 
-        fb_alloc_cmap(&fb_info.cmap, 256, 0);
+        ret = fb_alloc_cmap(&info->cmap, 256, 0);
+        if (unlikely(ret < 0))
+                goto err_fb;
 
-        if (register_framebuffer(&fb_info) < 0)
-                return -EINVAL;
+        ret = register_framebuffer(info);
+        if (unlikely(ret < 0))
+                goto err;
+
+        platform_set_drvdata(dev, info);
 
         printk(KERN_INFO "fb%d: %s frame buffer device\n",
-               fb_info.node, fb_info.fix.id);
+               info->node, info->fix.id);
+
         return 0;
+
+err:
+        fb_dealloc_cmap(&info->cmap);
+err_fb:
+        framebuffer_release(info);
+        return ret;
 }
 
 static int __exit hitfb_remove(struct platform_device *dev)
 {
-        return unregister_framebuffer(&fb_info);
+        struct fb_info *info = platform_get_drvdata(dev);
+
+        unregister_framebuffer(info);
+        fb_dealloc_cmap(&info->cmap);
+        framebuffer_release(info);
+
+        return 0;
 }
 
-#ifdef CONFIG_PM
-static int hitfb_suspend(struct platform_device *dev, pm_message_t state)
+static int hitfb_suspend(struct device *dev)
 {
         u16 v;
 
@@ -421,7 +441,7 @@ static int hitfb_suspend(struct platform_device *dev, pm_message_t state)
         return 0;
 }
 
-static int hitfb_resume(struct platform_device *dev)
+static int hitfb_resume(struct device *dev)
 {
         u16 v;
 
@@ -435,17 +455,19 @@ static int hitfb_resume(struct platform_device *dev)
 
         return 0;
 }
-#endif
+
+static struct dev_pm_ops hitfb_dev_pm_ops = {
+        .suspend        = hitfb_suspend,
+        .resume         = hitfb_resume,
+};
 
 static struct platform_driver hitfb_driver = {
         .probe          = hitfb_probe,
         .remove         = __exit_p(hitfb_remove),
-#ifdef CONFIG_PM
-        .suspend        = hitfb_suspend,
-        .resume         = hitfb_resume,
-#endif
         .driver         = {
                 .name   = "hitfb",
+                .owner  = THIS_MODULE,
+                .pm     = &hitfb_dev_pm_ops,
         },
 };
 
diff --git a/drivers/video/i810/i810_main.c b/drivers/video/i810/i810_main.c
index 2e940199fc89..5743ea25e818 100644
--- a/drivers/video/i810/i810_main.c
+++ b/drivers/video/i810/i810_main.c
@@ -1090,8 +1090,10 @@ static int encode_fix(struct fb_fix_screeninfo *fix, struct fb_info *info)
         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
 
         strcpy(fix->id, "I810");
+        mutex_lock(&info->mm_lock);
         fix->smem_start = par->fb.physical;
         fix->smem_len = par->fb.size;
+        mutex_unlock(&info->mm_lock);
         fix->type = FB_TYPE_PACKED_PIXELS;
         fix->type_aux = 0;
         fix->xpanstep = 8;
@@ -2058,8 +2060,7 @@ static int __devinit i810fb_init_pci (struct pci_dev *dev,
 
         fb_var_to_videomode(&mode, &info->var);
         fb_add_videomode(&mode, &info->modelist);
-        encode_fix(&info->fix, info); 
-                    
+
         i810fb_init_ringbuffer(info);
         err = register_framebuffer(info);
 
diff --git a/drivers/video/matrox/matroxfb_DAC1064.c b/drivers/video/matrox/matroxfb_DAC1064.c
index 0ce3b0a89798..a74e5da17aa0 100644
--- a/drivers/video/matrox/matroxfb_DAC1064.c
+++ b/drivers/video/matrox/matroxfb_DAC1064.c
@@ -454,9 +454,9 @@ static void DAC1064_restore_2(WPMINFO2) {
         dprintk(KERN_DEBUG "DAC1064regs ");
         for (i = 0; i < sizeof(MGA1064_DAC_regs); i++) {
                 dprintk("R%02X=%02X ", MGA1064_DAC_regs[i], ACCESS_FBINFO(hw).DACreg[i]);
-                if ((i & 0x7) == 0x7) dprintk("\n" KERN_DEBUG "continuing... ");
+                if ((i & 0x7) == 0x7) dprintk(KERN_DEBUG "continuing... ");
         }
-        dprintk("\n" KERN_DEBUG "DAC1064clk ");
+        dprintk(KERN_DEBUG "DAC1064clk ");
         for (i = 0; i < 6; i++)
                 dprintk("C%02X=%02X ", i, ACCESS_FBINFO(hw).DACclk[i]);
         dprintk("\n");
diff --git a/drivers/video/matrox/matroxfb_Ti3026.c b/drivers/video/matrox/matroxfb_Ti3026.c
index 13524821e242..4e825112a601 100644
--- a/drivers/video/matrox/matroxfb_Ti3026.c
+++ b/drivers/video/matrox/matroxfb_Ti3026.c
@@ -651,9 +651,9 @@ static void Ti3026_restore(WPMINFO2) {
         dprintk(KERN_DEBUG "3026DACregs ");
         for (i = 0; i < 21; i++) {
                 dprintk("R%02X=%02X ", DACseq[i], hw->DACreg[i]);
-                if ((i & 0x7) == 0x7) dprintk("\n" KERN_DEBUG "continuing... ");
+                if ((i & 0x7) == 0x7) dprintk(KERN_DEBUG "continuing... ");
         }
-        dprintk("\n" KERN_DEBUG "DACclk ");
+        dprintk(KERN_DEBUG "DACclk ");
         for (i = 0; i < 6; i++)
                 dprintk("C%02X=%02X ", i, hw->DACclk[i]);
         dprintk("\n");
diff --git a/drivers/video/matrox/matroxfb_base.c b/drivers/video/matrox/matroxfb_base.c
index 8e7a275df50c..0c1049b308bf 100644
--- a/drivers/video/matrox/matroxfb_base.c
+++ b/drivers/video/matrox/matroxfb_base.c
@@ -724,8 +724,10 @@ static void matroxfb_update_fix(WPMINFO2)
         struct fb_fix_screeninfo *fix = &ACCESS_FBINFO(fbcon).fix;
         DBG(__func__)
 
+        mutex_lock(&ACCESS_FBINFO(fbcon).mm_lock);
         fix->smem_start = ACCESS_FBINFO(video.base) + ACCESS_FBINFO(curr.ydstorg.bytes);
         fix->smem_len = ACCESS_FBINFO(video.len_usable) - ACCESS_FBINFO(curr.ydstorg.bytes);
+        mutex_unlock(&ACCESS_FBINFO(fbcon).mm_lock);
 }
 
 static int matroxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
@@ -1874,7 +1876,6 @@ static int initMatrox2(WPMINFO struct board* b){
         }
         matroxfb_init_fix(PMINFO2);
         ACCESS_FBINFO(fbcon.screen_base) = vaddr_va(ACCESS_FBINFO(video.vbase));
-        matroxfb_update_fix(PMINFO2);
         /* Normalize values (namely yres_virtual) */
         matroxfb_check_var(&vesafb_defined, &ACCESS_FBINFO(fbcon));
         /* And put it into "current" var. Do NOT program hardware yet, or we'll not take over
@@ -2081,6 +2082,7 @@ static int matroxfb_probe(struct pci_dev* pdev, const struct pci_device_id* dumm
         spin_lock_init(&ACCESS_FBINFO(lock.accel));
         init_rwsem(&ACCESS_FBINFO(crtc2.lock));
         init_rwsem(&ACCESS_FBINFO(altout.lock));
+        mutex_init(&ACCESS_FBINFO(fbcon).mm_lock);
         ACCESS_FBINFO(irq_flags) = 0;
         init_waitqueue_head(&ACCESS_FBINFO(crtc1.vsync.wait));
         init_waitqueue_head(&ACCESS_FBINFO(crtc2.vsync.wait));
diff --git a/drivers/video/matrox/matroxfb_crtc2.c b/drivers/video/matrox/matroxfb_crtc2.c
index 7ac4c5f6145d..ebcb5c6b4962 100644
--- a/drivers/video/matrox/matroxfb_crtc2.c
+++ b/drivers/video/matrox/matroxfb_crtc2.c
@@ -289,7 +289,12 @@ static int matroxfb_dh_release(struct fb_info* info, int user) {
 #undef m2info
 }
 
-static void matroxfb_dh_init_fix(struct matroxfb_dh_fb_info *m2info) {
+/*
+ * This function is called before the register_framebuffer so
+ * no locking is needed.
+ */
+static void matroxfb_dh_init_fix(struct matroxfb_dh_fb_info *m2info)
+{
         struct fb_fix_screeninfo *fix = &m2info->fbcon.fix;
 
         strcpy(fix->id, "MATROX DH");
diff --git a/drivers/video/mx3fb.c b/drivers/video/mx3fb.c
index b7af5256e887..054ef29be479 100644
--- a/drivers/video/mx3fb.c
+++ b/drivers/video/mx3fb.c
@@ -669,7 +669,8 @@ static uint32_t bpp_to_pixfmt(int bpp)
 }
 
 static int mx3fb_blank(int blank, struct fb_info *fbi);
-static int mx3fb_map_video_memory(struct fb_info *fbi);
+static int mx3fb_map_video_memory(struct fb_info *fbi, unsigned int mem_len,
+                                  bool lock);
 static int mx3fb_unmap_video_memory(struct fb_info *fbi);
 
 /**
@@ -711,12 +712,7 @@ static void mx3fb_dma_done(void *arg)
         complete(&mx3_fbi->flip_cmpl);
 }
 
-/**
- * mx3fb_set_par() - set framebuffer parameters and change the operating mode.
- * @fbi:        framebuffer information pointer.
- * @return:     0 on success or negative error code on failure.
- */
-static int mx3fb_set_par(struct fb_info *fbi)
+static int __set_par(struct fb_info *fbi, bool lock)
 {
         u32 mem_len;
         struct ipu_di_signal_cfg sig_cfg;
@@ -727,10 +723,6 @@ static int mx3fb_set_par(struct fb_info *fbi)
         struct idmac_video_param *video = &ichan->params.video;
         struct scatterlist *sg = mx3_fbi->sg;
 
-        dev_dbg(mx3fb->dev, "%s [%c]\n", __func__, list_empty(&ichan->queue) ? '-' : '+');
-
-        mutex_lock(&mx3_fbi->mutex);
-
         /* Total cleanup */
         if (mx3_fbi->txd)
                 sdc_disable_channel(mx3_fbi);
@@ -742,11 +734,8 @@ static int mx3fb_set_par(struct fb_info *fbi)
                 if (fbi->fix.smem_start)
                         mx3fb_unmap_video_memory(fbi);
 
-                fbi->fix.smem_len = mem_len;
-                if (mx3fb_map_video_memory(fbi) < 0) {
-                        mutex_unlock(&mx3_fbi->mutex);
+                if (mx3fb_map_video_memory(fbi, mem_len, lock) < 0)
                         return -ENOMEM;
-                }
         }
 
         sg_init_table(&sg[0], 1);
@@ -792,7 +781,6 @@ static int mx3fb_set_par(struct fb_info *fbi)
                                    fbi->var.vsync_len,
                                    fbi->var.lower_margin +
                                    fbi->var.vsync_len, sig_cfg) != 0) {
-                        mutex_unlock(&mx3_fbi->mutex);
                         dev_err(fbi->device,
                                 "mx3fb: Error initializing panel.\n");
                         return -EINVAL;
@@ -811,9 +799,30 @@ static int mx3fb_set_par(struct fb_info *fbi)
         if (mx3_fbi->blank == FB_BLANK_UNBLANK)
                 sdc_enable_channel(mx3_fbi);
 
+        return 0;
+}
+
+/**
+ * mx3fb_set_par() - set framebuffer parameters and change the operating mode.
+ * @fbi:        framebuffer information pointer.
+ * @return:     0 on success or negative error code on failure.
+ */
+static int mx3fb_set_par(struct fb_info *fbi)
+{
+        struct mx3fb_info *mx3_fbi = fbi->par;
+        struct mx3fb_data *mx3fb = mx3_fbi->mx3fb;
+        struct idmac_channel *ichan = mx3_fbi->idmac_channel;
+        int ret;
+
+        dev_dbg(mx3fb->dev, "%s [%c]\n", __func__, list_empty(&ichan->queue) ? '-' : '+');
+
+        mutex_lock(&mx3_fbi->mutex);
+
+        ret = __set_par(fbi, true);
+
         mutex_unlock(&mx3_fbi->mutex);
 
-        return 0;
+        return ret;
 }
 
 /**
@@ -967,21 +976,11 @@ static int mx3fb_setcolreg(unsigned int regno, unsigned int red,
         return ret;
 }
 
-/**
- * mx3fb_blank() - blank the display.
- */
-static int mx3fb_blank(int blank, struct fb_info *fbi)
+static void __blank(int blank, struct fb_info *fbi)
 {
         struct mx3fb_info *mx3_fbi = fbi->par;
         struct mx3fb_data *mx3fb = mx3_fbi->mx3fb;
 
-        dev_dbg(fbi->device, "%s, blank = %d, base %p, len %u\n", __func__,
-                blank, fbi->screen_base, fbi->fix.smem_len);
-
-        if (mx3_fbi->blank == blank)
-                return 0;
-
-        mutex_lock(&mx3_fbi->mutex);
         mx3_fbi->blank = blank;
 
         switch (blank) {
@@ -1000,6 +999,23 @@ static int mx3fb_blank(int blank, struct fb_info *fbi)
                 sdc_set_brightness(mx3fb, mx3fb->backlight_level);
                 break;
         }
+}
+
+/**
+ * mx3fb_blank() - blank the display.
+ */
+static int mx3fb_blank(int blank, struct fb_info *fbi)
+{
+        struct mx3fb_info *mx3_fbi = fbi->par;
+
+        dev_dbg(fbi->device, "%s, blank = %d, base %p, len %u\n", __func__,
+                blank, fbi->screen_base, fbi->fix.smem_len);
+
+        if (mx3_fbi->blank == blank)
+                return 0;
+
+        mutex_lock(&mx3_fbi->mutex);
+        __blank(blank, fbi);
         mutex_unlock(&mx3_fbi->mutex);
 
         return 0;
@@ -1198,6 +1214,8 @@ static int mx3fb_resume(struct platform_device *pdev)
 /**
  * mx3fb_map_video_memory() - allocates the DRAM memory for the frame buffer.
  * @fbi:        framebuffer information pointer
+ * @mem_len:    length of mapped memory
+ * @lock:       do not lock during initialisation
  * @return:     Error code indicating success or failure
  *
  * This buffer is remapped into a non-cached, non-buffered, memory region to
@@ -1205,23 +1223,29 @@ static int mx3fb_resume(struct platform_device *pdev)
  * area is remapped, all virtual memory access to the video memory should occur
  * at the new region.
  */
-static int mx3fb_map_video_memory(struct fb_info *fbi)
+static int mx3fb_map_video_memory(struct fb_info *fbi, unsigned int mem_len,
+                                  bool lock)
 {
         int retval = 0;
         dma_addr_t addr;
 
         fbi->screen_base = dma_alloc_writecombine(fbi->device,
-                                                  fbi->fix.smem_len,
+                                                  mem_len,
                                                   &addr, GFP_DMA);
 
         if (!fbi->screen_base) {
                 dev_err(fbi->device, "Cannot allocate %u bytes framebuffer memory\n",
-                        fbi->fix.smem_len);
+                        mem_len);
                 retval = -EBUSY;
                 goto err0;
         }
 
+        if (lock)
+                mutex_lock(&fbi->mm_lock);
         fbi->fix.smem_start = addr;
+        fbi->fix.smem_len = mem_len;
+        if (lock)
+                mutex_unlock(&fbi->mm_lock);
 
         dev_dbg(fbi->device, "allocated fb @ p=0x%08x, v=0x%p, size=%d.\n",
                 (uint32_t) fbi->fix.smem_start, fbi->screen_base, fbi->fix.smem_len);
@@ -1251,8 +1275,10 @@ static int mx3fb_unmap_video_memory(struct fb_info *fbi)
                               fbi->screen_base, fbi->fix.smem_start);
 
         fbi->screen_base = 0;
+        mutex_lock(&fbi->mm_lock);
         fbi->fix.smem_start = 0;
         fbi->fix.smem_len = 0;
+        mutex_unlock(&fbi->mm_lock);
         return 0;
 }
 
@@ -1360,11 +1386,11 @@ static int init_fb_chan(struct mx3fb_data *mx3fb, struct idmac_channel *ichan)
         init_completion(&mx3fbi->flip_cmpl);
         disable_irq(ichan->eof_irq);
         dev_dbg(mx3fb->dev, "disabling irq %d\n", ichan->eof_irq);
-        ret = mx3fb_set_par(fbi);
+        ret = __set_par(fbi, false);
         if (ret < 0)
                 goto esetpar;
 
-        mx3fb_blank(FB_BLANK_UNBLANK, fbi);
+        __blank(FB_BLANK_UNBLANK, fbi);
 
         dev_info(dev, "registered, using mode %s\n", fb_mode);
 
diff --git a/drivers/video/omap/omapfb_main.c b/drivers/video/omap/omapfb_main.c
index 060d72fe57cb..8862233d57b6 100644
--- a/drivers/video/omap/omapfb_main.c
+++ b/drivers/video/omap/omapfb_main.c
@@ -393,8 +393,10 @@ static void set_fb_fix(struct fb_info *fbi)
 
         rg = &plane->fbdev->mem_desc.region[plane->idx];
         fbi->screen_base        = rg->vaddr;
+        mutex_lock(&fbi->mm_lock);
         fix->smem_start         = rg->paddr;
         fix->smem_len           = rg->size;
+        mutex_unlock(&fbi->mm_lock);
 
         fix->type = FB_TYPE_PACKED_PIXELS;
         bpp = var->bits_per_pixel;
@@ -886,8 +888,10 @@ static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
                                  * plane memory is dealloce'd, the other
                                  * screen parameters in var / fix are invalid.
                                  */
+                                mutex_lock(&fbi->mm_lock);
                                 fbi->fix.smem_start = 0;
                                 fbi->fix.smem_len = 0;
+                                mutex_unlock(&fbi->mm_lock);
                         }
                 }
         }
@@ -1250,7 +1254,7 @@ static struct fb_ops omapfb_ops = {
 static ssize_t omapfb_show_caps_num(struct device *dev,
                                     struct device_attribute *attr, char *buf)
 {
-        struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+        struct omapfb_device *fbdev = dev_get_drvdata(dev);
         int plane;
         size_t size;
         struct omapfb_caps caps;
@@ -1270,7 +1274,7 @@ static ssize_t omapfb_show_caps_num(struct device *dev,
 static ssize_t omapfb_show_caps_text(struct device *dev,
                                      struct device_attribute *attr, char *buf)
 {
-        struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+        struct omapfb_device *fbdev = dev_get_drvdata(dev);
         int i;
         struct omapfb_caps caps;
         int plane;
@@ -1317,7 +1321,7 @@ static DEVICE_ATTR(caps_text, 0444, omapfb_show_caps_text, NULL);
 static ssize_t omapfb_show_panel_name(struct device *dev,
                                       struct device_attribute *attr, char *buf)
 {
-        struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+        struct omapfb_device *fbdev = dev_get_drvdata(dev);
 
         return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name);
 }
@@ -1326,7 +1330,7 @@ static ssize_t omapfb_show_bklight_level(struct device *dev,
                                          struct device_attribute *attr,
                                          char *buf)
 {
-        struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+        struct omapfb_device *fbdev = dev_get_drvdata(dev);
         int r;
 
         if (fbdev->panel->get_bklight_level) {
@@ -1341,7 +1345,7 @@ static ssize_t omapfb_store_bklight_level(struct device *dev,
                                           struct device_attribute *attr,
                                           const char *buf, size_t size)
 {
-        struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+        struct omapfb_device *fbdev = dev_get_drvdata(dev);
         int r;
 
         if (fbdev->panel->set_bklight_level) {
@@ -1360,7 +1364,7 @@ static ssize_t omapfb_store_bklight_level(struct device *dev,
 static ssize_t omapfb_show_bklight_max(struct device *dev,
                                        struct device_attribute *attr, char *buf)
 {
-        struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+        struct omapfb_device *fbdev = dev_get_drvdata(dev);
         int r;
 
         if (fbdev->panel->get_bklight_level) {
@@ -1393,7 +1397,7 @@ static struct attribute_group panel_attr_grp = {
 static ssize_t omapfb_show_ctrl_name(struct device *dev,
                                      struct device_attribute *attr, char *buf)
 {
-        struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+        struct omapfb_device *fbdev = dev_get_drvdata(dev);
 
         return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->ctrl->name);
 }
diff --git a/drivers/video/platinumfb.c b/drivers/video/platinumfb.c
index 03b3670130a0..bacfabd9ce16 100644
--- a/drivers/video/platinumfb.c
+++ b/drivers/video/platinumfb.c
@@ -141,7 +141,9 @@ static int platinumfb_set_par (struct fb_info *info)
                 offset = 0x10;
 
         info->screen_base = pinfo->frame_buffer + init->fb_offset + offset;
+        mutex_lock(&info->mm_lock);
         info->fix.smem_start = (pinfo->frame_buffer_phys) + init->fb_offset + offset;
+        mutex_unlock(&info->mm_lock);
         info->fix.visual = (pinfo->cmode == CMODE_8) ?
                 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
         info->fix.line_length = vmode_attrs[pinfo->vmode-1].hres * (1<<pinfo->cmode)
diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c
index 0889d50c3288..6506117c134b 100644
--- a/drivers/video/pxafb.c
+++ b/drivers/video/pxafb.c
@@ -815,8 +815,10 @@ static int overlayfb_map_video_memory(struct pxafb_layer *ofb)
         ofb->video_mem_phys = virt_to_phys(ofb->video_mem);
         ofb->video_mem_size = size;
 
+        mutex_lock(&ofb->fb.mm_lock);
         ofb->fb.fix.smem_start  = ofb->video_mem_phys;
         ofb->fb.fix.smem_len    = ofb->fb.fix.line_length * var->yres_virtual;
+        mutex_unlock(&ofb->fb.mm_lock);
         ofb->fb.screen_base     = ofb->video_mem;
         return 0;
 }
diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c
index 43680e545427..5a72083dc67c 100644
--- a/drivers/video/s3c-fb.c
+++ b/drivers/video/s3c-fb.c
@@ -211,23 +211,21 @@ static int s3c_fb_check_var(struct fb_var_screeninfo *var,
 
 /**
  * s3c_fb_calc_pixclk() - calculate the divider to create the pixel clock.
+ * @id: window id.
  * @sfb: The hardware state.
  * @pixclock: The pixel clock wanted, in picoseconds.
  *
  * Given the specified pixel clock, work out the necessary divider to get
  * close to the output frequency.
  */
-static int s3c_fb_calc_pixclk(struct s3c_fb *sfb, unsigned int pixclk)
+static int s3c_fb_calc_pixclk(unsigned char id, struct s3c_fb *sfb, unsigned int pixclk)
 {
+        struct s3c_fb_pd_win *win = sfb->pdata->win[id];
         unsigned long clk = clk_get_rate(sfb->bus_clk);
-        unsigned long long tmp;
         unsigned int result;
 
-        tmp = (unsigned long long)clk;
-        tmp *= pixclk;
-
-        do_div(tmp, 1000000000UL);
-        result = (unsigned int)tmp / 1000;
+        pixclk *= win->win_mode.refresh;
+        result = clk / pixclk;
 
         dev_dbg(sfb->dev, "pixclk=%u, clk=%lu, div=%d (%lu)\n",
                 pixclk, clk, result, clk / result);
@@ -267,6 +265,7 @@ static int s3c_fb_set_par(struct fb_info *info)
         struct s3c_fb *sfb = win->parent;
         void __iomem *regs = sfb->regs;
         int win_no = win->index;
+        u32 osdc_data = 0;
         u32 data;
         u32 pagewidth;
         int clkdiv;
@@ -302,7 +301,7 @@ static int s3c_fb_set_par(struct fb_info *info)
         /* use window 0 as the basis for the lcd output timings */
 
         if (win_no == 0) {
-                clkdiv = s3c_fb_calc_pixclk(sfb, var->pixclock);
+                clkdiv = s3c_fb_calc_pixclk(win_no, sfb, var->pixclock);
 
                 data = sfb->pdata->vidcon0;
                 data &= ~(VIDCON0_CLKVAL_F_MASK | VIDCON0_CLKDIR);
@@ -359,8 +358,6 @@ static int s3c_fb_set_par(struct fb_info *info)
 
         data = var->xres * var->yres;
 
-        u32 osdc_data = 0;
-
         osdc_data = VIDISD14C_ALPHA1_R(0xf) |
                 VIDISD14C_ALPHA1_G(0xf) |
                 VIDISD14C_ALPHA1_B(0xf);
@@ -967,7 +964,7 @@ static int __devexit s3c_fb_remove(struct platform_device *pdev)
         struct s3c_fb *sfb = platform_get_drvdata(pdev);
         int win;
 
-        for (win = 0; win <= S3C_FB_MAX_WIN; win++)
+        for (win = 0; win < S3C_FB_MAX_WIN; win++)
                 if (sfb->windows[win])
                         s3c_fb_release_win(sfb, sfb->windows[win]);
 
@@ -991,7 +988,7 @@ static int s3c_fb_suspend(struct platform_device *pdev, pm_message_t state)
         struct s3c_fb_win *win;
         int win_no;
 
-        for (win_no = S3C_FB_MAX_WIN; win_no >= 0; win_no--) {
+        for (win_no = S3C_FB_MAX_WIN - 1; win_no >= 0; win_no--) {
                 win = sfb->windows[win_no];
                 if (!win)
                         continue;
diff --git a/drivers/video/sh7760fb.c b/drivers/video/sh7760fb.c
index 653bdfee3057..9f6d6e61f0cc 100644
--- a/drivers/video/sh7760fb.c
+++ b/drivers/video/sh7760fb.c
@@ -120,18 +120,6 @@ static int sh7760_setcolreg (u_int regno,
         return 0;
 }
 
-static void encode_fix(struct fb_fix_screeninfo *fix, struct fb_info *info,
-                       unsigned long stride)
-{
-        memset(fix, 0, sizeof(struct fb_fix_screeninfo));
-        strcpy(fix->id, "sh7760-lcdc");
-
-        fix->smem_start = (unsigned long)info->screen_base;
-        fix->smem_len = info->screen_size;
-
-        fix->line_length = stride;
-}
-
 static int sh7760fb_get_color_info(struct device *dev,
                                    u16 lddfr, int *bpp, int *gray)
 {
@@ -334,7 +322,8 @@ static int sh7760fb_set_par(struct fb_info *info)
 
         iowrite32(ldsarl, par->base + LDSARL);  /* mem for lower half of DSTN */
 
-        encode_fix(&info->fix, info, stride);
+        info->fix.line_length = stride;
+
         sh7760fb_check_var(&info->var, info);
 
         sh7760fb_blank(FB_BLANK_UNBLANK, info); /* panel on! */
@@ -435,6 +424,8 @@ static int sh7760fb_alloc_mem(struct fb_info *info)
 
         info->screen_base = fbmem;
         info->screen_size = vram;
+        info->fix.smem_start = (unsigned long)info->screen_base;
+        info->fix.smem_len = info->screen_size;
 
         return 0;
 }
@@ -520,6 +511,8 @@ static int __devinit sh7760fb_probe(struct platform_device *pdev)
         info->var.transp.length = 0;
         info->var.transp.msb_right = 0;
 
+        strcpy(info->fix.id, "sh7760-lcdc");
+
         /* set the DON2 bit now, before cmap allocation, as it will randomize
          * palette memory.
          */
diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index f10d2fbeda06..8f24564f77b0 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -17,6 +17,7 @@
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
 #include <linux/interrupt.h>
+#include <linux/vmalloc.h>
 #include <video/sh_mobile_lcdc.h>
 #include <asm/atomic.h>
 
@@ -30,9 +31,10 @@ struct sh_mobile_lcdc_chan {
         unsigned long enabled; /* ME and SE in LDCNT2R */
         struct sh_mobile_lcdc_chan_cfg cfg;
         u32 pseudo_palette[PALETTE_NR];
-        struct fb_info info;
+        struct fb_info *info;
         dma_addr_t dma_handle;
         struct fb_deferred_io defio;
+        struct scatterlist *sglist;
         unsigned long frame_end;
         wait_queue_head_t frame_end_wait;
 };
@@ -206,16 +208,38 @@ static void sh_mobile_lcdc_clk_on(struct sh_mobile_lcdc_priv *priv) {}
 static void sh_mobile_lcdc_clk_off(struct sh_mobile_lcdc_priv *priv) {}
 #endif
 
+static int sh_mobile_lcdc_sginit(struct fb_info *info,
+                                  struct list_head *pagelist)
+{
+        struct sh_mobile_lcdc_chan *ch = info->par;
+        unsigned int nr_pages_max = info->fix.smem_len >> PAGE_SHIFT;
+        struct page *page;
+        int nr_pages = 0;
+
+        sg_init_table(ch->sglist, nr_pages_max);
+
+        list_for_each_entry(page, pagelist, lru)
+                sg_set_page(&ch->sglist[nr_pages++], page, PAGE_SIZE, 0);
+
+        return nr_pages;
+}
+
 static void sh_mobile_lcdc_deferred_io(struct fb_info *info,
                                        struct list_head *pagelist)
 {
         struct sh_mobile_lcdc_chan *ch = info->par;
+        unsigned int nr_pages;
 
         /* enable clocks before accessing hardware */
         sh_mobile_lcdc_clk_on(ch->lcdc);
 
+        nr_pages = sh_mobile_lcdc_sginit(info, pagelist);
+        dma_map_sg(info->dev, ch->sglist, nr_pages, DMA_TO_DEVICE);
+
         /* trigger panel update */
         lcdc_write_chan(ch, LDSM2R, 1);
+
+        dma_unmap_sg(info->dev, ch->sglist, nr_pages, DMA_TO_DEVICE);
 }
 
 static void sh_mobile_lcdc_deferred_io_touch(struct fb_info *info)
@@ -418,22 +442,22 @@ static int sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv)
                 /* set bpp format in PKF[4:0] */
                 tmp = lcdc_read_chan(ch, LDDFR);
                 tmp &= ~(0x0001001f);
-                tmp |= (priv->ch[k].info.var.bits_per_pixel == 16) ? 3 : 0;
+                tmp |= (ch->info->var.bits_per_pixel == 16) ? 3 : 0;
                 lcdc_write_chan(ch, LDDFR, tmp);
 
                 /* point out our frame buffer */
-                lcdc_write_chan(ch, LDSA1R, ch->info.fix.smem_start);
+                lcdc_write_chan(ch, LDSA1R, ch->info->fix.smem_start);
 
                 /* set line size */
-                lcdc_write_chan(ch, LDMLSR, ch->info.fix.line_length);
+                lcdc_write_chan(ch, LDMLSR, ch->info->fix.line_length);
 
                 /* setup deferred io if SYS bus */
                 tmp = ch->cfg.sys_bus_cfg.deferred_io_msec;
                 if (ch->ldmt1r_value & (1 << 12) && tmp) {
                         ch->defio.deferred_io = sh_mobile_lcdc_deferred_io;
                         ch->defio.delay = msecs_to_jiffies(tmp);
-                        ch->info.fbdefio = &ch->defio;
-                        fb_deferred_io_init(&ch->info);
+                        ch->info->fbdefio = &ch->defio;
+                        fb_deferred_io_init(ch->info);
 
                         /* one-shot mode */
                         lcdc_write_chan(ch, LDSM1R, 1);
@@ -479,12 +503,12 @@ static void sh_mobile_lcdc_stop(struct sh_mobile_lcdc_priv *priv)
                  * flush frame, and wait for frame end interrupt
                  * clean up deferred io and enable clock
                  */
-                if (ch->info.fbdefio) {
+                if (ch->info->fbdefio) {
                         ch->frame_end = 0;
-                        schedule_delayed_work(&ch->info.deferred_work, 0);
+                        schedule_delayed_work(&ch->info->deferred_work, 0);
                         wait_event(ch->frame_end_wait, ch->frame_end);
-                        fb_deferred_io_cleanup(&ch->info);
-                        ch->info.fbdefio = NULL;
+                        fb_deferred_io_cleanup(ch->info);
+                        ch->info->fbdefio = NULL;
                         sh_mobile_lcdc_clk_on(priv);
                 }
 
@@ -793,9 +817,16 @@ static int __init sh_mobile_lcdc_probe(struct platform_device *pdev)
         priv->base = ioremap_nocache(res->start, (res->end - res->start) + 1);
 
         for (i = 0; i < j; i++) {
-                info = &priv->ch[i].info;
                 cfg = &priv->ch[i].cfg;
 
+                priv->ch[i].info = framebuffer_alloc(0, &pdev->dev);
+                if (!priv->ch[i].info) {
+                        dev_err(&pdev->dev, "unable to allocate fb_info\n");
+                        error = -ENOMEM;
+                        break;
+                }
+
+                info = priv->ch[i].info;
                 info->fbops = &sh_mobile_lcdc_ops;
                 info->var.xres = info->var.xres_virtual = cfg->lcd_cfg.xres;
                 info->var.yres = info->var.yres_virtual = cfg->lcd_cfg.yres;
@@ -846,21 +877,31 @@ static int __init sh_mobile_lcdc_probe(struct platform_device *pdev)
         }
 
         for (i = 0; i < j; i++) {
-                error = register_framebuffer(&priv->ch[i].info);
+                struct sh_mobile_lcdc_chan *ch = priv->ch + i;
+
+                info = ch->info;
+
+                if (info->fbdefio) {
+                        priv->ch->sglist = vmalloc(sizeof(struct scatterlist) *
+                                        info->fix.smem_len >> PAGE_SHIFT);
+                        if (!priv->ch->sglist) {
+                                dev_err(&pdev->dev, "cannot allocate sglist\n");
+                                goto err1;
+                        }
+                }
+
+                error = register_framebuffer(info);
                 if (error < 0)
                         goto err1;
-        }
 
-        for (i = 0; i < j; i++) {
-                info = &priv->ch[i].info;
                 dev_info(info->dev,
                          "registered %s/%s as %dx%d %dbpp.\n",
                          pdev->name,
-                         (priv->ch[i].cfg.chan == LCDC_CHAN_MAINLCD) ?
+                         (ch->cfg.chan == LCDC_CHAN_MAINLCD) ?
                          "mainlcd" : "sublcd",
-                         (int) priv->ch[i].cfg.lcd_cfg.xres,
-                         (int) priv->ch[i].cfg.lcd_cfg.yres,
-                         priv->ch[i].cfg.bpp);
+                         (int) ch->cfg.lcd_cfg.xres,
+                         (int) ch->cfg.lcd_cfg.yres,
+                         ch->cfg.bpp);
 
                 /* deferred io mode: disable clock to save power */
                 if (info->fbdefio)
@@ -881,20 +922,24 @@ static int sh_mobile_lcdc_remove(struct platform_device *pdev)
         int i;
 
         for (i = 0; i < ARRAY_SIZE(priv->ch); i++)
-                if (priv->ch[i].info.dev)
-                        unregister_framebuffer(&priv->ch[i].info);
+                if (priv->ch[i].info->dev)
+                        unregister_framebuffer(priv->ch[i].info);
 
         sh_mobile_lcdc_stop(priv);
 
         for (i = 0; i < ARRAY_SIZE(priv->ch); i++) {
-                info = &priv->ch[i].info;
+                info = priv->ch[i].info;
 
-                if (!info->device)
+                if (!info || !info->device)
                         continue;
 
+                if (priv->ch[i].sglist)
+                        vfree(priv->ch[i].sglist);
+
                 dma_free_coherent(&pdev->dev, info->fix.smem_len,
                                   info->screen_base, priv->ch[i].dma_handle);
                 fb_dealloc_cmap(&info->cmap);
+                framebuffer_release(info);
         }
 
 #ifdef CONFIG_HAVE_CLK
diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c
index 7072d19080d5..4a067f0d0ceb 100644
--- a/drivers/video/sis/sis_main.c
+++ b/drivers/video/sis/sis_main.c
@@ -1847,8 +1847,10 @@ sisfb_get_fix(struct fb_fix_screeninfo *fix, int con, struct fb_info *info)
 
         strcpy(fix->id, ivideo->myid);
 
+        mutex_lock(&info->mm_lock);
         fix->smem_start  = ivideo->video_base + ivideo->video_offset;
         fix->smem_len    = ivideo->sisfb_mem;
+        mutex_unlock(&info->mm_lock);
         fix->type        = FB_TYPE_PACKED_PIXELS;
         fix->type_aux    = 0;
         fix->visual      = (ivideo->video_bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
@@ -6365,7 +6367,6 @@ error_3:	vfree(ivideo->bios_abase);
                 sis_fb_info->fix = ivideo->sisfb_fix;
                 sis_fb_info->screen_base = ivideo->video_vbase + ivideo->video_offset;
                 sis_fb_info->fbops = &sisfb_ops;
-                sisfb_get_fix(&sis_fb_info->fix, -1, sis_fb_info);
                 sis_fb_info->pseudo_palette = ivideo->pseudo_palette;
 
                 fb_alloc_cmap(&sis_fb_info->cmap, 256 , 0);
diff --git a/drivers/video/sm501fb.c b/drivers/video/sm501fb.c
index eb5d73a06702..924d79462780 100644
--- a/drivers/video/sm501fb.c
+++ b/drivers/video/sm501fb.c
@@ -145,7 +145,7 @@ static inline void sm501fb_sync_regs(struct sm501fb_info *info)
 #define SM501_MEMF_ACCEL                (8)
 
 static int sm501_alloc_mem(struct sm501fb_info *inf, struct sm501_mem *mem,
-                           unsigned int why, size_t size)
+                           unsigned int why, size_t size, u32 smem_len)
 {
         struct sm501fb_par *par;
         struct fb_info *fbi;
@@ -172,7 +172,7 @@ static int sm501_alloc_mem(struct sm501fb_info *inf, struct sm501_mem *mem,
                 if (ptr > 0)
                         ptr &= ~(PAGE_SIZE - 1);
 
-                if (fbi && ptr < fbi->fix.smem_len)
+                if (fbi && ptr < smem_len)
                         return -ENOMEM;
 
                 break;
@@ -197,7 +197,7 @@ static int sm501_alloc_mem(struct sm501fb_info *inf, struct sm501_mem *mem,
 
         case SM501_MEMF_ACCEL:
                 fbi = inf->fb[HEAD_CRT];
-                ptr = fbi ? fbi->fix.smem_len : 0;
+                ptr = fbi ? smem_len : 0;
 
                 fbi = inf->fb[HEAD_PANEL];
                 if (fbi) {
@@ -413,6 +413,7 @@ static int sm501fb_set_par_common(struct fb_info *info,
         unsigned int mem_type;
         unsigned int clock_type;
         unsigned int head_addr;
+        unsigned int smem_len;
 
         dev_dbg(fbi->dev, "%s: %dx%d, bpp = %d, virtual %dx%d\n",
                 __func__, var->xres, var->yres, var->bits_per_pixel,
@@ -453,18 +454,20 @@ static int sm501fb_set_par_common(struct fb_info *info,
 
         /* allocate fb memory within 501 */
         info->fix.line_length = (var->xres_virtual * var->bits_per_pixel)/8;
-        info->fix.smem_len    = info->fix.line_length * var->yres_virtual;
+        smem_len = info->fix.line_length * var->yres_virtual;
 
         dev_dbg(fbi->dev, "%s: line length = %u\n", __func__,
                 info->fix.line_length);
 
-        if (sm501_alloc_mem(fbi, &par->screen, mem_type,
-                            info->fix.smem_len)) {
+        if (sm501_alloc_mem(fbi, &par->screen, mem_type, smem_len, smem_len)) {
                 dev_err(fbi->dev, "no memory available\n");
                 return -ENOMEM;
         }
 
+        mutex_lock(&info->mm_lock);
         info->fix.smem_start = fbi->fbmem_res->start + par->screen.sm_addr;
+        info->fix.smem_len   = smem_len;
+        mutex_unlock(&info->mm_lock);
 
         info->screen_base = fbi->fbmem + par->screen.sm_addr;
         info->screen_size = info->fix.smem_len;
@@ -637,7 +640,8 @@ static int sm501fb_set_par_crt(struct fb_info *info)
         if ((control & SM501_DC_CRT_CONTROL_SEL) == 0) {
                 /* the head is displaying panel data... */
 
-                sm501_alloc_mem(fbi, &par->screen, SM501_MEMF_CRT, 0);
+                sm501_alloc_mem(fbi, &par->screen, SM501_MEMF_CRT, 0,
+                                info->fix.smem_len);
                 goto out_update;
         }
 
@@ -1289,7 +1293,8 @@ static int sm501_init_cursor(struct fb_info *fbi, unsigned int reg_base)
 
         par->cursor_regs = info->regs + reg_base;
 
-        ret = sm501_alloc_mem(info, &par->cursor, SM501_MEMF_CURSOR, 1024);
+        ret = sm501_alloc_mem(info, &par->cursor, SM501_MEMF_CURSOR, 1024,
+                              fbi->fix.smem_len);
         if (ret < 0)
                 return ret;
 
@@ -1535,9 +1540,6 @@ static int sm501fb_init_fb(struct fb_info *fb,
         if (ret)
                 dev_err(info->dev, "check_var() failed on initial setup?\n");
 
-        /* ensure we've activated our new configuration */
-        (fb->fbops->fb_set_par)(fb);
-
         return 0;
 }
 
@@ -1619,6 +1621,8 @@ static int __devinit sm501fb_start_one(struct sm501fb_info *info,
         if (!fbi)
                 return 0;
 
+        mutex_init(&info->fb[head]->mm_lock);
+
         ret = sm501fb_init_fb(info->fb[head], head, drvname);
         if (ret) {
                 dev_err(info->dev, "cannot initialise fb %s\n", drvname);
diff --git a/drivers/video/stifb.c b/drivers/video/stifb.c
index eec9dcb7f599..6120f0c526fe 100644
--- a/drivers/video/stifb.c
+++ b/drivers/video/stifb.c
@@ -1115,10 +1115,9 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref)
                   if the device name contains the string "DX" and tell the
                   user how to reconfigure the card. */
                 if (strstr(sti->outptr.dev_name, "DX")) {
-                   printk(KERN_WARNING "WARNING: stifb framebuffer driver does not "
-                        "support '%s' in double-buffer mode.\n"
-                        KERN_WARNING "WARNING: Please disable the double-buffer mode "
-                        "in IPL menu (the PARISC-BIOS).\n",
+                   printk(KERN_WARNING
+"WARNING: stifb framebuffer driver does not support '%s' in double-buffer mode.\n"
+"WARNING: Please disable the double-buffer mode in IPL menu (the PARISC-BIOS).\n",
                         sti->outptr.dev_name);
                    goto out_err0;
                 }
diff --git a/drivers/video/via/hw.c b/drivers/video/via/hw.c
index fcd53ceb88fa..c8960003f47d 100644
--- a/drivers/video/via/hw.c
+++ b/drivers/video/via/hw.c
@@ -2407,14 +2407,14 @@ int viafb_setmode(int vmode_index, int hor_res, int ver_res, int video_bpp,
                         viafb_dvi_set_mode(viafb_get_mode_index
                                      (viaparinfo->tmds_setting_info->h_active,
                                       viaparinfo->tmds_setting_info->
-                                      v_active, 1),
+                                      v_active),
                                      video_bpp1, viaparinfo->
                                      tmds_setting_info->iga_path);
                 } else {
                         viafb_dvi_set_mode(viafb_get_mode_index
                                      (viaparinfo->tmds_setting_info->h_active,
                                       viaparinfo->
-                                      tmds_setting_info->v_active, 0),
+                                      tmds_setting_info->v_active),
                                      video_bpp, viaparinfo->
                                      tmds_setting_info->iga_path);
                 }
diff --git a/drivers/video/via/lcd.c b/drivers/video/via/lcd.c
index 6c7290a6a447..78c6b3387947 100644
--- a/drivers/video/via/lcd.c
+++ b/drivers/video/via/lcd.c
@@ -580,10 +580,7 @@ static void load_lcd_k400_patch_tbl(int set_hres, int set_vres,
         int reg_num = 0;
         struct io_reg *lcd_patch_reg = NULL;
 
-        if (viaparinfo->lvds_setting_info->iga_path == IGA2)
-                vmode_index = viafb_get_mode_index(set_hres, set_vres, 1);
-        else
-                vmode_index = viafb_get_mode_index(set_hres, set_vres, 0);
+        vmode_index = viafb_get_mode_index(set_hres, set_vres);
         switch (panel_id) {
                 /* LCD 800x600 */
         case LCD_PANEL_ID1_800X600:
@@ -761,10 +758,7 @@ static void load_lcd_p880_patch_tbl(int set_hres, int set_vres,
         int reg_num = 0;
         struct io_reg *lcd_patch_reg = NULL;
 
-        if (viaparinfo->lvds_setting_info->iga_path == IGA2)
-                vmode_index = viafb_get_mode_index(set_hres, set_vres, 1);
-        else
-                vmode_index = viafb_get_mode_index(set_hres, set_vres, 0);
+        vmode_index = viafb_get_mode_index(set_hres, set_vres);
 
         switch (panel_id) {
         case LCD_PANEL_ID5_1400X1050:
@@ -832,10 +826,7 @@ static void load_lcd_patch_regs(int set_hres, int set_vres,
 {
         int vmode_index;
 
-        if (viaparinfo->lvds_setting_info->iga_path == IGA2)
-                vmode_index = viafb_get_mode_index(set_hres, set_vres, 1);
-        else
-                vmode_index = viafb_get_mode_index(set_hres, set_vres, 0);
+        vmode_index = viafb_get_mode_index(set_hres, set_vres);
 
         viafb_unlock_crt();
 
diff --git a/drivers/video/via/viafbdev.c b/drivers/video/via/viafbdev.c
index a0fec298216e..72833f3334b5 100644
--- a/drivers/video/via/viafbdev.c
+++ b/drivers/video/via/viafbdev.c
@@ -32,7 +32,6 @@ static u32 pseudo_pal[17];
 /* video mode */
 static char *viafb_mode = "640x480";
 static char *viafb_mode1 = "640x480";
-static int viafb_resMode = VIA_RES_640X480;
 
 /* Added for specifying active devices.*/
 char *viafb_active_dev = "";
@@ -56,47 +55,47 @@ static void viafb_get_video_device(u32 *video_dev_info);
 
 /* Mode information */
 static const struct viafb_modeinfo viafb_modentry[] = {
-        {480, 640, VIA_RES_480X640, "480x640"},
-        {640, 480, VIA_RES_640X480, "640x480"},
-        {800, 480, VIA_RES_800X480, "800x480"},
-        {800, 600, VIA_RES_800X600, "800x600"},
-        {1024, 768, VIA_RES_1024X768, "1024x768"},
-        {1152, 864, VIA_RES_1152X864, "1152x864"},
-        {1280, 1024, VIA_RES_1280X1024, "1280x1024"},
-        {1600, 1200, VIA_RES_1600X1200, "1600x1200"},
-        {1440, 1050, VIA_RES_1440X1050, "1440x1050"},
-        {1280, 768, VIA_RES_1280X768, "1280x768"},
-        {1280, 800, VIA_RES_1280X800, "1280x800"},
-        {1280, 960, VIA_RES_1280X960, "1280x960"},
-        {1920, 1440, VIA_RES_1920X1440, "1920x1440"},
-        {848, 480, VIA_RES_848X480, "848x480"},
-        {1400, 1050, VIA_RES_1400X1050, "1400x1050"},
-        {720, 480, VIA_RES_720X480, "720x480"},
-        {720, 576, VIA_RES_720X576, "720x576"},
-        {1024, 512, VIA_RES_1024X512, "1024x512"},
-        {1024, 576, VIA_RES_1024X576, "1024x576"},
-        {1024, 600, VIA_RES_1024X600, "1024x600"},
-        {1280, 720, VIA_RES_1280X720, "1280x720"},
-        {1920, 1080, VIA_RES_1920X1080, "1920x1080"},
-        {1366, 768, VIA_RES_1368X768, "1368x768"},
-        {1680, 1050, VIA_RES_1680X1050, "1680x1050"},
-        {960, 600, VIA_RES_960X600, "960x600"},
-        {1000, 600, VIA_RES_1000X600, "1000x600"},
-        {1024, 576, VIA_RES_1024X576, "1024x576"},
-        {1024, 600, VIA_RES_1024X600, "1024x600"},
-        {1088, 612, VIA_RES_1088X612, "1088x612"},
-        {1152, 720, VIA_RES_1152X720, "1152x720"},
-        {1200, 720, VIA_RES_1200X720, "1200x720"},
-        {1280, 600, VIA_RES_1280X600, "1280x600"},
-        {1360, 768, VIA_RES_1360X768, "1360x768"},
-        {1440, 900, VIA_RES_1440X900, "1440x900"},
-        {1600, 900, VIA_RES_1600X900, "1600x900"},
-        {1600, 1024, VIA_RES_1600X1024, "1600x1024"},
-        {1792, 1344, VIA_RES_1792X1344, "1792x1344"},
-        {1856, 1392, VIA_RES_1856X1392, "1856x1392"},
-        {1920, 1200, VIA_RES_1920X1200, "1920x1200"},
-        {2048, 1536, VIA_RES_2048X1536, "2048x1536"},
-        {0, 0, VIA_RES_INVALID, "640x480"}
+        {480, 640, VIA_RES_480X640},
+        {640, 480, VIA_RES_640X480},
+        {800, 480, VIA_RES_800X480},
+        {800, 600, VIA_RES_800X600},
+        {1024, 768, VIA_RES_1024X768},
+        {1152, 864, VIA_RES_1152X864},
+        {1280, 1024, VIA_RES_1280X1024},
+        {1600, 1200, VIA_RES_1600X1200},
+        {1440, 1050, VIA_RES_1440X1050},
+        {1280, 768, VIA_RES_1280X768,},
+        {1280, 800, VIA_RES_1280X800},
+        {1280, 960, VIA_RES_1280X960},
+        {1920, 1440, VIA_RES_1920X1440},
+        {848, 480, VIA_RES_848X480},
+        {1400, 1050, VIA_RES_1400X1050},
+        {720, 480, VIA_RES_720X480},
+        {720, 576, VIA_RES_720X576},
+        {1024, 512, VIA_RES_1024X512},
+        {1024, 576, VIA_RES_1024X576},
+        {1024, 600, VIA_RES_1024X600},
+        {1280, 720, VIA_RES_1280X720},
+        {1920, 1080, VIA_RES_1920X1080},
+        {1366, 768, VIA_RES_1368X768},
+        {1680, 1050, VIA_RES_1680X1050},
+        {960, 600, VIA_RES_960X600},
+        {1000, 600, VIA_RES_1000X600},
+        {1024, 576, VIA_RES_1024X576},
+        {1024, 600, VIA_RES_1024X600},
+        {1088, 612, VIA_RES_1088X612},
+        {1152, 720, VIA_RES_1152X720},
+        {1200, 720, VIA_RES_1200X720},
+        {1280, 600, VIA_RES_1280X600},
+        {1360, 768, VIA_RES_1360X768},
+        {1440, 900, VIA_RES_1440X900},
+        {1600, 900, VIA_RES_1600X900},
+        {1600, 1024, VIA_RES_1600X1024},
+        {1792, 1344, VIA_RES_1792X1344},
+        {1856, 1392, VIA_RES_1856X1392},
+        {1920, 1200, VIA_RES_1920X1200},
+        {2048, 1536, VIA_RES_2048X1536},
+        {0, 0, VIA_RES_INVALID}
 };
 
 static struct fb_ops viafb_ops;
@@ -177,7 +176,7 @@ static int viafb_check_var(struct fb_var_screeninfo *var,
         if (var->vmode & FB_VMODE_INTERLACED || var->vmode & FB_VMODE_DOUBLE)
                 return -EINVAL;
 
-        vmode_index = viafb_get_mode_index(var->xres, var->yres, 0);
+        vmode_index = viafb_get_mode_index(var->xres, var->yres);
         if (vmode_index == VIA_RES_INVALID) {
                 DEBUG_MSG(KERN_INFO
                           "viafb: Mode %dx%dx%d not supported!!\n",
@@ -233,14 +232,14 @@ static int viafb_set_par(struct fb_info *info)
         viafb_update_device_setting(info->var.xres, info->var.yres,
                               info->var.bits_per_pixel, viafb_refresh, 0);
 
-        vmode_index = viafb_get_mode_index(info->var.xres, info->var.yres, 0);
+        vmode_index = viafb_get_mode_index(info->var.xres, info->var.yres);
 
         if (viafb_SAMM_ON == 1) {
                 DEBUG_MSG(KERN_INFO
                 "viafb_second_xres = %d, viafb_second_yres = %d, bpp = %d\n",
                           viafb_second_xres, viafb_second_yres, viafb_bpp1);
                 vmode_index1 = viafb_get_mode_index(viafb_second_xres,
-                        viafb_second_yres, 1);
+                        viafb_second_yres);
                 DEBUG_MSG(KERN_INFO "->viafb_SAMM_ON: index=%d\n",
                         vmode_index1);
 
@@ -1262,7 +1261,7 @@ static int viafb_sync(struct fb_info *info)
         return 0;
 }
 
-int viafb_get_mode_index(int hres, int vres, int flag)
+int viafb_get_mode_index(int hres, int vres)
 {
         u32 i;
         DEBUG_MSG(KERN_INFO "viafb_get_mode_index!\n");
@@ -1272,13 +1271,7 @@ int viafb_get_mode_index(int hres, int vres, int flag)
                         viafb_modentry[i].yres == vres)
                         break;
 
-        viafb_resMode = viafb_modentry[i].mode_index;
-        if (flag)
-                viafb_mode1 = viafb_modentry[i].mode_res;
-        else
-                viafb_mode = viafb_modentry[i].mode_res;
-
-        return viafb_resMode;
+        return viafb_modentry[i].mode_index;
 }
 
 static void check_available_device_to_enable(int device_id)
@@ -2199,7 +2192,7 @@ static int __devinit via_pci_probe(void)
         strict_strtoul(tmpc, 0, &default_xres);
         strict_strtoul(tmpm, 0, &default_yres);
 
-        vmode_index = viafb_get_mode_index(default_xres, default_yres, 0);
+        vmode_index = viafb_get_mode_index(default_xres, default_yres);
         DEBUG_MSG(KERN_INFO "0->index=%d\n", vmode_index);
 
         if (viafb_SAMM_ON == 1) {
diff --git a/drivers/video/via/viafbdev.h b/drivers/video/via/viafbdev.h
index a4158e872878..227b000feb38 100644
--- a/drivers/video/via/viafbdev.h
+++ b/drivers/video/via/viafbdev.h
@@ -81,7 +81,6 @@ struct viafb_modeinfo {
         u32 xres;
         u32 yres;
         int mode_index;
-        char *mode_res;
 };
 extern unsigned int viafb_second_virtual_yres;
 extern unsigned int viafb_second_virtual_xres;
@@ -102,7 +101,7 @@ extern int strict_strtoul(const char *cp, unsigned int base,
 void viafb_memory_pitch_patch(struct fb_info *info);
 void viafb_fill_var_timing_info(struct fb_var_screeninfo *var, int refresh,
                           int mode_index);
-int viafb_get_mode_index(int hres, int vres, int flag);
+int viafb_get_mode_index(int hres, int vres);
 u8 viafb_gpio_i2c_read_lvds(struct lvds_setting_information
         *plvds_setting_info, struct lvds_chip_information
         *plvds_chip_info, u8 index);
diff --git a/drivers/video/w100fb.c b/drivers/video/w100fb.c
index d0674f1e3f10..2376f688ec8b 100644
--- a/drivers/video/w100fb.c
+++ b/drivers/video/w100fb.c
@@ -523,6 +523,7 @@ static int w100fb_set_par(struct fb_info *info)
                 info->fix.ywrapstep = 0;
                 info->fix.line_length = par->xres * BITS_PER_PIXEL / 8;
 
+                mutex_lock(&info->mm_lock);
                 if ((par->xres*par->yres*BITS_PER_PIXEL/8) > (MEM_INT_SIZE+1)) {
                         par->extmem_active = 1;
                         info->fix.smem_len = par->mach->mem->size+1;
@@ -530,6 +531,7 @@ static int w100fb_set_par(struct fb_info *info)
                         par->extmem_active = 0;
                         info->fix.smem_len = MEM_INT_SIZE+1;
                 }
+                mutex_unlock(&info->mm_lock);
 
                 w100fb_activate_var(par);
         }
@@ -746,8 +748,6 @@ int __init w100fb_probe(struct platform_device *pdev)
                 goto out;
         }
 
-        w100fb_set_par(info);
-
         if (register_framebuffer(info) < 0) {
                 err = -EINVAL;
                 goto out;
diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c
index 193c8f0e5cc5..248e00ec4dc1 100644
--- a/drivers/virtio/virtio_pci.c
+++ b/drivers/virtio/virtio_pci.c
@@ -52,8 +52,10 @@ struct virtio_pci_device
         char (*msix_names)[256];
         /* Number of available vectors */
         unsigned msix_vectors;
-        /* Vectors allocated */
+        /* Vectors allocated, excluding per-vq vectors if any */
         unsigned msix_used_vectors;
+        /* Whether we have vector per vq */
+        bool per_vq_vectors;
 };
 
 /* Constants for MSI-X */
@@ -258,7 +260,6 @@ static void vp_free_vectors(struct virtio_device *vdev)
 
         for (i = 0; i < vp_dev->msix_used_vectors; ++i)
                 free_irq(vp_dev->msix_entries[i].vector, vp_dev);
-        vp_dev->msix_used_vectors = 0;
 
         if (vp_dev->msix_enabled) {
                 /* Disable the vector used for configuration */
@@ -267,80 +268,77 @@ static void vp_free_vectors(struct virtio_device *vdev)
                 /* Flush the write out to device */
                 ioread16(vp_dev->ioaddr + VIRTIO_MSI_CONFIG_VECTOR);
 
-                vp_dev->msix_enabled = 0;
                 pci_disable_msix(vp_dev->pci_dev);
+                vp_dev->msix_enabled = 0;
+                vp_dev->msix_vectors = 0;
         }
-}
 
-static int vp_enable_msix(struct pci_dev *dev, struct msix_entry *entries,
-                          int *options, int noptions)
-{
-        int i;
-        for (i = 0; i < noptions; ++i)
-                if (!pci_enable_msix(dev, entries, options[i]))
-                        return options[i];
-        return -EBUSY;
+        vp_dev->msix_used_vectors = 0;
+        kfree(vp_dev->msix_names);
+        vp_dev->msix_names = NULL;
+        kfree(vp_dev->msix_entries);
+        vp_dev->msix_entries = NULL;
 }
 
-static int vp_request_vectors(struct virtio_device *vdev, unsigned max_vqs)
+static int vp_request_vectors(struct virtio_device *vdev, int nvectors,
+                              bool per_vq_vectors)
 {
         struct virtio_pci_device *vp_dev = to_vp_device(vdev);
         const char *name = dev_name(&vp_dev->vdev.dev);
         unsigned i, v;
         int err = -ENOMEM;
-        /* We want at most one vector per queue and one for config changes.
-         * Fallback to separate vectors for config and a shared for queues.
-         * Finally fall back to regular interrupts. */
-        int options[] = { max_vqs + 1, 2 };
-        int nvectors = max(options[0], options[1]);
+
+        if (!nvectors) {
+                /* Can't allocate MSI-X vectors, use regular interrupt */
+                vp_dev->msix_vectors = 0;
+                err = request_irq(vp_dev->pci_dev->irq, vp_interrupt,
+                                  IRQF_SHARED, name, vp_dev);
+                if (err)
+                        return err;
+                vp_dev->intx_enabled = 1;
+                return 0;
+        }
 
         vp_dev->msix_entries = kmalloc(nvectors * sizeof *vp_dev->msix_entries,
                                        GFP_KERNEL);
         if (!vp_dev->msix_entries)
-                goto error_entries;
+                goto error;
         vp_dev->msix_names = kmalloc(nvectors * sizeof *vp_dev->msix_names,
                                      GFP_KERNEL);
         if (!vp_dev->msix_names)
-                goto error_names;
+                goto error;
 
         for (i = 0; i < nvectors; ++i)
                 vp_dev->msix_entries[i].entry = i;
 
-        err = vp_enable_msix(vp_dev->pci_dev, vp_dev->msix_entries,
-                             options, ARRAY_SIZE(options));
-        if (err < 0) {
-                /* Can't allocate enough MSI-X vectors, use regular interrupt */
-                vp_dev->msix_vectors = 0;
-                err = request_irq(vp_dev->pci_dev->irq, vp_interrupt,
-                                  IRQF_SHARED, name, vp_dev);
-                if (err)
-                        goto error_irq;
-                vp_dev->intx_enabled = 1;
-        } else {
-                vp_dev->msix_vectors = err;
-                vp_dev->msix_enabled = 1;
-
-                /* Set the vector used for configuration */
-                v = vp_dev->msix_used_vectors;
-                snprintf(vp_dev->msix_names[v], sizeof *vp_dev->msix_names,
-                         "%s-config", name);
-                err = request_irq(vp_dev->msix_entries[v].vector,
-                                  vp_config_changed, 0, vp_dev->msix_names[v],
-                                  vp_dev);
-                if (err)
-                        goto error_irq;
-                ++vp_dev->msix_used_vectors;
-
-                iowrite16(v, vp_dev->ioaddr + VIRTIO_MSI_CONFIG_VECTOR);
-                /* Verify we had enough resources to assign the vector */
-                v = ioread16(vp_dev->ioaddr + VIRTIO_MSI_CONFIG_VECTOR);
-                if (v == VIRTIO_MSI_NO_VECTOR) {
-                        err = -EBUSY;
-                        goto error_irq;
-                }
+        err = pci_enable_msix(vp_dev->pci_dev, vp_dev->msix_entries, nvectors);
+        if (err > 0)
+                err = -ENOSPC;
+        if (err)
+                goto error;
+        vp_dev->msix_vectors = nvectors;
+        vp_dev->msix_enabled = 1;
+
+        /* Set the vector used for configuration */
+        v = vp_dev->msix_used_vectors;
+        snprintf(vp_dev->msix_names[v], sizeof *vp_dev->msix_names,
+                 "%s-config", name);
+        err = request_irq(vp_dev->msix_entries[v].vector,
+                          vp_config_changed, 0, vp_dev->msix_names[v],
+                          vp_dev);
+        if (err)
+                goto error;
+        ++vp_dev->msix_used_vectors;
+
+        iowrite16(v, vp_dev->ioaddr + VIRTIO_MSI_CONFIG_VECTOR);
+        /* Verify we had enough resources to assign the vector */
+        v = ioread16(vp_dev->ioaddr + VIRTIO_MSI_CONFIG_VECTOR);
+        if (v == VIRTIO_MSI_NO_VECTOR) {
+                err = -EBUSY;
+                goto error;
         }
 
-        if (vp_dev->msix_vectors && vp_dev->msix_vectors != max_vqs + 1) {
+        if (!per_vq_vectors) {
                 /* Shared vector for all VQs */
                 v = vp_dev->msix_used_vectors;
                 snprintf(vp_dev->msix_names[v], sizeof *vp_dev->msix_names,
@@ -349,28 +347,25 @@ static int vp_request_vectors(struct virtio_device *vdev, unsigned max_vqs)
                                   vp_vring_interrupt, 0, vp_dev->msix_names[v],
                                   vp_dev);
                 if (err)
-                        goto error_irq;
+                        goto error;
                 ++vp_dev->msix_used_vectors;
         }
         return 0;
-error_irq:
+error:
         vp_free_vectors(vdev);
-        kfree(vp_dev->msix_names);
-error_names:
-        kfree(vp_dev->msix_entries);
-error_entries:
         return err;
 }
 
 static struct virtqueue *vp_find_vq(struct virtio_device *vdev, unsigned index,
                                     void (*callback)(struct virtqueue *vq),
-                                    const char *name)
+                                    const char *name,
+                                    u16 vector)
 {
         struct virtio_pci_device *vp_dev = to_vp_device(vdev);
         struct virtio_pci_vq_info *info;
         struct virtqueue *vq;
         unsigned long flags, size;
-        u16 num, vector;
+        u16 num;
         int err;
 
         /* Select the queue we're interested in */
@@ -389,7 +384,7 @@ static struct virtqueue *vp_find_vq(struct virtio_device *vdev, unsigned index,
 
         info->queue_index = index;
         info->num = num;
-        info->vector = VIRTIO_MSI_NO_VECTOR;
+        info->vector = vector;
 
         size = PAGE_ALIGN(vring_size(num, VIRTIO_PCI_VRING_ALIGN));
         info->queue = alloc_pages_exact(size, GFP_KERNEL|__GFP_ZERO);
@@ -413,22 +408,7 @@ static struct virtqueue *vp_find_vq(struct virtio_device *vdev, unsigned index,
         vq->priv = info;
         info->vq = vq;
 
-        /* allocate per-vq vector if available and necessary */
-        if (callback && vp_dev->msix_used_vectors < vp_dev->msix_vectors) {
-                vector = vp_dev->msix_used_vectors;
-                snprintf(vp_dev->msix_names[vector], sizeof *vp_dev->msix_names,
-                         "%s-%s", dev_name(&vp_dev->vdev.dev), name);
-                err = request_irq(vp_dev->msix_entries[vector].vector,
-                                  vring_interrupt, 0,
-                                  vp_dev->msix_names[vector], vq);
-                if (err)
-                        goto out_request_irq;
-                info->vector = vector;
-                ++vp_dev->msix_used_vectors;
-        } else
-                vector = VP_MSIX_VQ_VECTOR;
-
-         if (callback && vp_dev->msix_enabled) {
+         if (vector != VIRTIO_MSI_NO_VECTOR) {
                 iowrite16(vector, vp_dev->ioaddr + VIRTIO_MSI_QUEUE_VECTOR);
                 vector = ioread16(vp_dev->ioaddr + VIRTIO_MSI_QUEUE_VECTOR);
                 if (vector == VIRTIO_MSI_NO_VECTOR) {
@@ -444,11 +424,6 @@ static struct virtqueue *vp_find_vq(struct virtio_device *vdev, unsigned index,
         return vq;
 
 out_assign:
-        if (info->vector != VIRTIO_MSI_NO_VECTOR) {
-                free_irq(vp_dev->msix_entries[info->vector].vector, vq);
-                --vp_dev->msix_used_vectors;
-        }
-out_request_irq:
         vring_del_virtqueue(vq);
 out_activate_queue:
         iowrite32(0, vp_dev->ioaddr + VIRTIO_PCI_QUEUE_PFN);
@@ -462,12 +437,13 @@ static void vp_del_vq(struct virtqueue *vq)
 {
         struct virtio_pci_device *vp_dev = to_vp_device(vq->vdev);
         struct virtio_pci_vq_info *info = vq->priv;
-        unsigned long size;
+        unsigned long flags, size;
 
-        iowrite16(info->queue_index, vp_dev->ioaddr + VIRTIO_PCI_QUEUE_SEL);
+        spin_lock_irqsave(&vp_dev->lock, flags);
+        list_del(&info->node);
+        spin_unlock_irqrestore(&vp_dev->lock, flags);
 
-        if (info->vector != VIRTIO_MSI_NO_VECTOR)
-                free_irq(vp_dev->msix_entries[info->vector].vector, vq);
+        iowrite16(info->queue_index, vp_dev->ioaddr + VIRTIO_PCI_QUEUE_SEL);
 
         if (vp_dev->msix_enabled) {
                 iowrite16(VIRTIO_MSI_NO_VECTOR,
@@ -489,36 +465,62 @@ static void vp_del_vq(struct virtqueue *vq)
 /* the config->del_vqs() implementation */
 static void vp_del_vqs(struct virtio_device *vdev)
 {
+        struct virtio_pci_device *vp_dev = to_vp_device(vdev);
         struct virtqueue *vq, *n;
+        struct virtio_pci_vq_info *info;
 
-        list_for_each_entry_safe(vq, n, &vdev->vqs, list)
+        list_for_each_entry_safe(vq, n, &vdev->vqs, list) {
+                info = vq->priv;
+                if (vp_dev->per_vq_vectors)
+                        free_irq(vp_dev->msix_entries[info->vector].vector, vq);
                 vp_del_vq(vq);
+        }
+        vp_dev->per_vq_vectors = false;
 
         vp_free_vectors(vdev);
 }
 
-/* the config->find_vqs() implementation */
-static int vp_find_vqs(struct virtio_device *vdev, unsigned nvqs,
-                       struct virtqueue *vqs[],
-                       vq_callback_t *callbacks[],
-                       const char *names[])
+static int vp_try_to_find_vqs(struct virtio_device *vdev, unsigned nvqs,
+                              struct virtqueue *vqs[],
+                              vq_callback_t *callbacks[],
+                              const char *names[],
+                              int nvectors,
+                              bool per_vq_vectors)
 {
-        int vectors = 0;
-        int i, err;
-
-        /* How many vectors would we like? */
-        for (i = 0; i < nvqs; ++i)
-                if (callbacks[i])
-                        ++vectors;
+        struct virtio_pci_device *vp_dev = to_vp_device(vdev);
+        u16 vector;
+        int i, err, allocated_vectors;
 
-        err = vp_request_vectors(vdev, vectors);
+        err = vp_request_vectors(vdev, nvectors, per_vq_vectors);
         if (err)
                 goto error_request;
 
+        vp_dev->per_vq_vectors = per_vq_vectors;
+        allocated_vectors = vp_dev->msix_used_vectors;
         for (i = 0; i < nvqs; ++i) {
-                vqs[i] = vp_find_vq(vdev, i, callbacks[i], names[i]);
-                if (IS_ERR(vqs[i]))
+                if (!callbacks[i] || !vp_dev->msix_enabled)
+                        vector = VIRTIO_MSI_NO_VECTOR;
+                else if (vp_dev->per_vq_vectors)
+                        vector = allocated_vectors++;
+                else
+                        vector = VP_MSIX_VQ_VECTOR;
+                vqs[i] = vp_find_vq(vdev, i, callbacks[i], names[i], vector);
+                if (IS_ERR(vqs[i])) {
+                        err = PTR_ERR(vqs[i]);
                         goto error_find;
+                }
+                /* allocate per-vq irq if available and necessary */
+                if (vp_dev->per_vq_vectors && vector != VIRTIO_MSI_NO_VECTOR) {
+                        snprintf(vp_dev->msix_names[vector], sizeof *vp_dev->msix_names,
+                                 "%s-%s", dev_name(&vp_dev->vdev.dev), names[i]);
+                        err = request_irq(vp_dev->msix_entries[vector].vector,
+                                          vring_interrupt, 0,
+                                          vp_dev->msix_names[vector], vqs[i]);
+                        if (err) {
+                                vp_del_vq(vqs[i]);
+                                goto error_find;
+                        }
+                }
         }
         return 0;
 
@@ -526,7 +528,37 @@ error_find:
         vp_del_vqs(vdev);
 
 error_request:
-        return PTR_ERR(vqs[i]);
+        return err;
+}
+
+/* the config->find_vqs() implementation */
+static int vp_find_vqs(struct virtio_device *vdev, unsigned nvqs,
+                       struct virtqueue *vqs[],
+                       vq_callback_t *callbacks[],
+                       const char *names[])
+{
+        int vectors = 0;
+        int i, uninitialized_var(err);
+
+        /* How many vectors would we like? */
+        for (i = 0; i < nvqs; ++i)
+                if (callbacks[i])
+                        ++vectors;
+
+        /* We want at most one vector per queue and one for config changes. */
+        err = vp_try_to_find_vqs(vdev, nvqs, vqs, callbacks, names,
+                                 vectors + 1, true);
+        if (!err)
+                return 0;
+        /* Fallback to separate vectors for config and a shared for queues. */
+        err = vp_try_to_find_vqs(vdev, nvqs, vqs, callbacks, names,
+                                 2, false);
+        if (!err)
+                return 0;
+        /* Finally fall back to regular interrupts. */
+        err = vp_try_to_find_vqs(vdev, nvqs, vqs, callbacks, names,
+                                 0, false);
+        return err;
 }
 
 static struct virtio_config_ops virtio_pci_config_ops = {
@@ -669,7 +701,7 @@ static int __init virtio_pci_init(void)
 
         err = pci_register_driver(&virtio_pci_driver);
         if (err)
-                device_unregister(virtio_pci_root);
+                root_device_unregister(virtio_pci_root);
 
         return err;
 }
diff --git a/drivers/vlynq/Kconfig b/drivers/vlynq/Kconfig
index f6542211db48..a9efb1625321 100644
--- a/drivers/vlynq/Kconfig
+++ b/drivers/vlynq/Kconfig
@@ -13,7 +13,7 @@ config VLYNQ
 
 config VLYNQ_DEBUG
         bool "VLYNQ bus debug"
-        depends on VLYNQ && KERNEL_DEBUG
+        depends on VLYNQ && DEBUG_KERNEL
         help
           Turn on VLYNQ bus debugging.
 
diff --git a/drivers/vlynq/vlynq.c b/drivers/vlynq/vlynq.c
index 7335433b067b..f05d2a368367 100644
--- a/drivers/vlynq/vlynq.c
+++ b/drivers/vlynq/vlynq.c
@@ -76,7 +76,7 @@ struct vlynq_regs {
         u32 int_device[8];
 };
 
-#ifdef VLYNQ_DEBUG
+#ifdef CONFIG_VLYNQ_DEBUG
 static void vlynq_dump_regs(struct vlynq_device *dev)
 {
         int i;
diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c
index a7e3b706b9d3..0d92969404c3 100644
--- a/drivers/w1/masters/omap_hdq.c
+++ b/drivers/w1/masters/omap_hdq.c
@@ -687,6 +687,7 @@ static int omap_hdq_remove(struct platform_device *pdev)
 
         if (hdq_data->hdq_usecount) {
                 dev_dbg(&pdev->dev, "removed when use count is not zero\n");
+                mutex_unlock(&hdq_data->hdq_mutex);
                 return -EBUSY;
         }
 
diff --git a/drivers/watchdog/bcm47xx_wdt.c b/drivers/watchdog/bcm47xx_wdt.c
index 5c7011cda6a6..751c003864ad 100644
--- a/drivers/watchdog/bcm47xx_wdt.c
+++ b/drivers/watchdog/bcm47xx_wdt.c
@@ -161,7 +161,7 @@ static long bcm47xx_wdt_ioctl(struct file *file,
 {
         void __user *argp = (void __user *)arg;
         int __user *p = argp;
-        int new_value, retval = -EINVAL;;
+        int new_value, retval = -EINVAL;
 
         switch (cmd) {
         case WDIOC_GETSUPPORT:
diff --git a/drivers/watchdog/coh901327_wdt.c b/drivers/watchdog/coh901327_wdt.c
index fecb307d28e9..aec7cefdef21 100644
--- a/drivers/watchdog/coh901327_wdt.c
+++ b/drivers/watchdog/coh901327_wdt.c
@@ -18,6 +18,7 @@
 #include <linux/bitops.h>
 #include <linux/uaccess.h>
 #include <linux/clk.h>
+#include <linux/delay.h>
 
 #define DRV_NAME "WDOG COH 901 327"
 
@@ -92,6 +93,8 @@ static struct clk *clk;
 static void coh901327_enable(u16 timeout)
 {
         u16 val;
+        unsigned long freq;
+        unsigned long delay_ns;
 
         clk_enable(clk);
         /* Restart timer if it is disabled */
@@ -102,6 +105,14 @@ static void coh901327_enable(u16 timeout)
         /* Acknowledge any pending interrupt so it doesn't just fire off */
         writew(U300_WDOG_IER_WILL_BARK_IRQ_ACK_ENABLE,
                virtbase + U300_WDOG_IER);
+        /*
+         * The interrupt is cleared in the 32 kHz clock domain.
+         * Wait 3 32 kHz cycles for it to take effect
+         */
+        freq = clk_get_rate(clk);
+        delay_ns = (1000000000 + freq - 1) / freq; /* Freq to ns and round up */
+        delay_ns = 3 * delay_ns; /* Wait 3 cycles */
+        ndelay(delay_ns);
         /* Enable the watchdog interrupt */
         writew(U300_WDOG_IMR_WILL_BARK_IRQ_ENABLE, virtbase + U300_WDOG_IMR);
         /* Activate the watchdog timer */
diff --git a/drivers/watchdog/ep93xx_wdt.c b/drivers/watchdog/ep93xx_wdt.c
index e9f950ff86ea..cdd55e0d09f8 100644
--- a/drivers/watchdog/ep93xx_wdt.c
+++ b/drivers/watchdog/ep93xx_wdt.c
@@ -29,6 +29,7 @@
 #include <linux/watchdog.h>
 #include <linux/timer.h>
 #include <linux/uaccess.h>
+#include <linux/io.h>
 #include <mach/hardware.h>
 
 #define WDT_VERSION     "0.3"
diff --git a/drivers/watchdog/ks8695_wdt.c b/drivers/watchdog/ks8695_wdt.c
index 00b03eb43bf0..e1c82769b08e 100644
--- a/drivers/watchdog/ks8695_wdt.c
+++ b/drivers/watchdog/ks8695_wdt.c
@@ -66,7 +66,7 @@ static inline void ks8695_wdt_stop(void)
 static inline void ks8695_wdt_start(void)
 {
         unsigned long tmcon;
-        unsigned long tval = wdt_time * CLOCK_TICK_RATE;
+        unsigned long tval = wdt_time * KS8695_CLOCK_RATE;
 
         spin_lock(&ks8695_lock);
         /* disable timer0 */
@@ -103,7 +103,7 @@ static inline void ks8695_wdt_reload(void)
 static int ks8695_wdt_settimeout(int new_time)
 {
         /*
-         * All counting occurs at SLOW_CLOCK / 128 = 0.256 Hz
+         * All counting occurs at KS8695_CLOCK_RATE / 128 = 0.256 Hz
          *
          * Since WDV is a 16-bit counter, the maximum period is
          * 65536 / 0.256 = 256 seconds.
diff --git a/drivers/watchdog/sa1100_wdt.c b/drivers/watchdog/sa1100_wdt.c
index ee1caae4d33b..016245419fad 100644
--- a/drivers/watchdog/sa1100_wdt.c
+++ b/drivers/watchdog/sa1100_wdt.c
@@ -38,7 +38,7 @@
 
 static unsigned long oscr_freq;
 static unsigned long sa1100wdt_users;
-static int pre_margin;
+static unsigned int pre_margin;
 static int boot_status;
 
 /*
@@ -84,6 +84,7 @@ static const struct watchdog_info ident = {
         .options        = WDIOF_CARDRESET | WDIOF_SETTIMEOUT
                                 | WDIOF_KEEPALIVEPING,
         .identity       = "SA1100/PXA255 Watchdog",
+        .firmware_version       = 1,
 };
 
 static long sa1100dog_ioctl(struct file *file, unsigned int cmd,
@@ -118,7 +119,7 @@ static long sa1100dog_ioctl(struct file *file, unsigned int cmd,
                 if (ret)
                         break;
 
-                if (time <= 0 || time > 255) {
+                if (time <= 0 || (oscr_freq * (long long)time >= 0xffffffff)) {
                         ret = -EINVAL;
                         break;
                 }
diff --git a/drivers/watchdog/w83627hf_wdt.c b/drivers/watchdog/w83627hf_wdt.c
index 916890abffdd..f201accc4e3d 100644
--- a/drivers/watchdog/w83627hf_wdt.c
+++ b/drivers/watchdog/w83627hf_wdt.c
@@ -89,6 +89,11 @@ static void w83627hf_select_wd_register(void)
                 c = ((inb_p(WDT_EFDR) & 0xf7) | 0x04); /* select WDT0 */
                 outb_p(0x2b, WDT_EFER);
                 outb_p(c, WDT_EFDR);    /* set GPIO3 to WDT0 */
+        } else if (c == 0x88) { /* W83627EHF */
+                outb_p(0x2d, WDT_EFER); /* select GPIO5 */
+                c = inb_p(WDT_EFDR) & ~0x01; /* PIN77 -> WDT0# */
+                outb_p(0x2d, WDT_EFER);
+                outb_p(c, WDT_EFDR); /* set GPIO5 to WDT0 */
         }
 
         outb_p(0x07, WDT_EFER); /* point to logical device number reg */
diff --git a/drivers/watchdog/w83697ug_wdt.c b/drivers/watchdog/w83697ug_wdt.c
index 883b5f79673a..a6c12dec91a1 100644
--- a/drivers/watchdog/w83697ug_wdt.c
+++ b/drivers/watchdog/w83697ug_wdt.c
@@ -149,8 +149,10 @@ static void wdt_ctrl(int timeout)
 {
         spin_lock(&io_lock);
 
-        if (w83697ug_select_wd_register() < 0)
+        if (w83697ug_select_wd_register() < 0) {
+                spin_unlock(&io_lock);
                 return;
+        }
 
         outb_p(0xF4, WDT_EFER);    /* Select CRF4 */
         outb_p(timeout, WDT_EFDR); /* Write Timeout counter to CRF4 */
diff --git a/drivers/watchdog/wdrtas.c b/drivers/watchdog/wdrtas.c
index a4fe7a38d9b0..3bde56bce63a 100644
--- a/drivers/watchdog/wdrtas.c
+++ b/drivers/watchdog/wdrtas.c
@@ -218,16 +218,14 @@ static void wdrtas_timer_keepalive(void)
  */
 static int wdrtas_get_temperature(void)
 {
-        long result;
+        int result;
         int temperature = 0;
 
-        result = rtas_call(wdrtas_token_get_sensor_state, 2, 2,
-                           (void *)__pa(&temperature),
-                           WDRTAS_THERMAL_SENSOR, 0);
+        result = rtas_get_sensor(WDRTAS_THERMAL_SENSOR, 0, &temperature);
 
         if (result < 0)
                 printk(KERN_WARNING "wdrtas: reading the thermal sensor "
-                       "faild: %li\n", result);
+                       "failed: %i\n", result);
         else
                 temperature = ((temperature * 9) / 5) + 32; /* fahrenheit */
 
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 891d2e90753a..abad71b1632b 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -927,9 +927,9 @@ static struct irq_chip xen_dynamic_chip __read_mostly = {
 void __init xen_init_IRQ(void)
 {
         int i;
-        size_t size = nr_cpu_ids * sizeof(struct cpu_evtchn_s);
 
-        cpu_evtchn_mask_p = alloc_bootmem(size);
+        cpu_evtchn_mask_p = kcalloc(nr_cpu_ids, sizeof(struct cpu_evtchn_s),
+                                    GFP_KERNEL);
         BUG_ON(cpu_evtchn_mask_p == NULL);
 
         init_evtchn_cpu_bindings();