Merge branch 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6

* 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6: (21 commits)
  tty: serial: altera_jtaguart: Add device tree support
  tty: serial: altera_uart: Add devicetree support
  dt: eliminate of_platform_driver shim code
  dt: Eliminate of_platform_{,un}register_driver
  dt/serial: Eliminate users of of_platform_{,un}register_driver
  dt/usb: Eliminate users of of_platform_{,un}register_driver
  dt/video: Eliminate users of of_platform_{,un}register_driver
  dt/net: Eliminate users of of_platform_{,un}register_driver
  dt/sound: Eliminate users of of_platform_{,un}register_driver
  dt/spi: Eliminate users of of_platform_{,un}register_driver
  dt: uartlite: merge platform and of_platform driver bindings
  dt: xilinx_hwicap: merge platform and of_platform driver bindings
  ipmi: convert OF driver to platform driver
  leds/leds-gpio: merge platform_driver with of_platform_driver
  dt/sparc: Eliminate users of of_platform_{,un}register_driver
  dt/powerpc: Eliminate users of of_platform_{,un}register_driver
  dt/powerpc: move of_bus_type infrastructure to ibmebus
  drivercore/dt: add a match table pointer to struct device
  dt: Typo fix.
  altera_ps2: Add devicetree support
  ...

7 files changed, 419 insertions, 26 deletions

diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c
index f62efdfd1769..c00d4ca1ee15 100644
--- a/arch/powerpc/kernel/ibmebus.c
+++ b/arch/powerpc/kernel/ibmebus.c
@@ -201,13 +201,14 @@ int ibmebus_register_driver(struct of_platform_driver *drv)
         /* If the driver uses devices that ibmebus doesn't know, add them */
         ibmebus_create_devices(drv->driver.of_match_table);
 
-        return of_register_driver(drv, &ibmebus_bus_type);
+        drv->driver.bus = &ibmebus_bus_type;
+        return driver_register(&drv->driver);
 }
 EXPORT_SYMBOL(ibmebus_register_driver);
 
 void ibmebus_unregister_driver(struct of_platform_driver *drv)
 {
-        of_unregister_driver(drv);
+        driver_unregister(&drv->driver);
 }
 EXPORT_SYMBOL(ibmebus_unregister_driver);
 
@@ -308,15 +309,410 @@ static ssize_t ibmebus_store_remove(struct bus_type *bus,
         }
 }
 
+
 static struct bus_attribute ibmebus_bus_attrs[] = {
         __ATTR(probe, S_IWUSR, NULL, ibmebus_store_probe),
         __ATTR(remove, S_IWUSR, NULL, ibmebus_store_remove),
         __ATTR_NULL
 };
 
+static int ibmebus_bus_bus_match(struct device *dev, struct device_driver *drv)
+{
+        const struct of_device_id *matches = drv->of_match_table;
+
+        if (!matches)
+                return 0;
+
+        return of_match_device(matches, dev) != NULL;
+}
+
+static int ibmebus_bus_device_probe(struct device *dev)
+{
+        int error = -ENODEV;
+        struct of_platform_driver *drv;
+        struct platform_device *of_dev;
+        const struct of_device_id *match;
+
+        drv = to_of_platform_driver(dev->driver);
+        of_dev = to_platform_device(dev);
+
+        if (!drv->probe)
+                return error;
+
+        of_dev_get(of_dev);
+
+        match = of_match_device(drv->driver.of_match_table, dev);
+        if (match)
+                error = drv->probe(of_dev, match);
+        if (error)
+                of_dev_put(of_dev);
+
+        return error;
+}
+
+static int ibmebus_bus_device_remove(struct device *dev)
+{
+        struct platform_device *of_dev = to_platform_device(dev);
+        struct of_platform_driver *drv = to_of_platform_driver(dev->driver);
+
+        if (dev->driver && drv->remove)
+                drv->remove(of_dev);
+        return 0;
+}
+
+static void ibmebus_bus_device_shutdown(struct device *dev)
+{
+        struct platform_device *of_dev = to_platform_device(dev);
+        struct of_platform_driver *drv = to_of_platform_driver(dev->driver);
+
+        if (dev->driver && drv->shutdown)
+                drv->shutdown(of_dev);
+}
+
+/*
+ * ibmebus_bus_device_attrs
+ */
+static ssize_t devspec_show(struct device *dev,
+                                struct device_attribute *attr, char *buf)
+{
+        struct platform_device *ofdev;
+
+        ofdev = to_platform_device(dev);
+        return sprintf(buf, "%s\n", ofdev->dev.of_node->full_name);
+}
+
+static ssize_t name_show(struct device *dev,
+                                struct device_attribute *attr, char *buf)
+{
+        struct platform_device *ofdev;
+
+        ofdev = to_platform_device(dev);
+        return sprintf(buf, "%s\n", ofdev->dev.of_node->name);
+}
+
+static ssize_t modalias_show(struct device *dev,
+                                struct device_attribute *attr, char *buf)
+{
+        ssize_t len = of_device_get_modalias(dev, buf, PAGE_SIZE - 2);
+        buf[len] = '\n';
+        buf[len+1] = 0;
+        return len+1;
+}
+
+struct device_attribute ibmebus_bus_device_attrs[] = {
+        __ATTR_RO(devspec),
+        __ATTR_RO(name),
+        __ATTR_RO(modalias),
+        __ATTR_NULL
+};
+
+#ifdef CONFIG_PM_SLEEP
+static int ibmebus_bus_legacy_suspend(struct device *dev, pm_message_t mesg)
+{
+        struct platform_device *of_dev = to_platform_device(dev);
+        struct of_platform_driver *drv = to_of_platform_driver(dev->driver);
+        int ret = 0;
+
+        if (dev->driver && drv->suspend)
+                ret = drv->suspend(of_dev, mesg);
+        return ret;
+}
+
+static int ibmebus_bus_legacy_resume(struct device *dev)
+{
+        struct platform_device *of_dev = to_platform_device(dev);
+        struct of_platform_driver *drv = to_of_platform_driver(dev->driver);
+        int ret = 0;
+
+        if (dev->driver && drv->resume)
+                ret = drv->resume(of_dev);
+        return ret;
+}
+
+static int ibmebus_bus_pm_prepare(struct device *dev)
+{
+        struct device_driver *drv = dev->driver;
+        int ret = 0;
+
+        if (drv && drv->pm && drv->pm->prepare)
+                ret = drv->pm->prepare(dev);
+
+        return ret;
+}
+
+static void ibmebus_bus_pm_complete(struct device *dev)
+{
+        struct device_driver *drv = dev->driver;
+
+        if (drv && drv->pm && drv->pm->complete)
+                drv->pm->complete(dev);
+}
+
+#ifdef CONFIG_SUSPEND
+
+static int ibmebus_bus_pm_suspend(struct device *dev)
+{
+        struct device_driver *drv = dev->driver;
+        int ret = 0;
+
+        if (!drv)
+                return 0;
+
+        if (drv->pm) {
+                if (drv->pm->suspend)
+                        ret = drv->pm->suspend(dev);
+        } else {
+                ret = ibmebus_bus_legacy_suspend(dev, PMSG_SUSPEND);
+        }
+
+        return ret;
+}
+
+static int ibmebus_bus_pm_suspend_noirq(struct device *dev)
+{
+        struct device_driver *drv = dev->driver;
+        int ret = 0;
+
+        if (!drv)
+                return 0;
+
+        if (drv->pm) {
+                if (drv->pm->suspend_noirq)
+                        ret = drv->pm->suspend_noirq(dev);
+        }
+
+        return ret;
+}
+
+static int ibmebus_bus_pm_resume(struct device *dev)
+{
+        struct device_driver *drv = dev->driver;
+        int ret = 0;
+
+        if (!drv)
+                return 0;
+
+        if (drv->pm) {
+                if (drv->pm->resume)
+                        ret = drv->pm->resume(dev);
+        } else {
+                ret = ibmebus_bus_legacy_resume(dev);
+        }
+
+        return ret;
+}
+
+static int ibmebus_bus_pm_resume_noirq(struct device *dev)
+{
+        struct device_driver *drv = dev->driver;
+        int ret = 0;
+
+        if (!drv)
+                return 0;
+
+        if (drv->pm) {
+                if (drv->pm->resume_noirq)
+                        ret = drv->pm->resume_noirq(dev);
+        }
+
+        return ret;
+}
+
+#else /* !CONFIG_SUSPEND */
+
+#define ibmebus_bus_pm_suspend          NULL
+#define ibmebus_bus_pm_resume           NULL
+#define ibmebus_bus_pm_suspend_noirq    NULL
+#define ibmebus_bus_pm_resume_noirq     NULL
+
+#endif /* !CONFIG_SUSPEND */
+
+#ifdef CONFIG_HIBERNATION
+
+static int ibmebus_bus_pm_freeze(struct device *dev)
+{
+        struct device_driver *drv = dev->driver;
+        int ret = 0;
+
+        if (!drv)
+                return 0;
+
+        if (drv->pm) {
+                if (drv->pm->freeze)
+                        ret = drv->pm->freeze(dev);
+        } else {
+                ret = ibmebus_bus_legacy_suspend(dev, PMSG_FREEZE);
+        }
+
+        return ret;
+}
+
+static int ibmebus_bus_pm_freeze_noirq(struct device *dev)
+{
+        struct device_driver *drv = dev->driver;
+        int ret = 0;
+
+        if (!drv)
+                return 0;
+
+        if (drv->pm) {
+                if (drv->pm->freeze_noirq)
+                        ret = drv->pm->freeze_noirq(dev);
+        }
+
+        return ret;
+}
+
+static int ibmebus_bus_pm_thaw(struct device *dev)
+{
+        struct device_driver *drv = dev->driver;
+        int ret = 0;
+
+        if (!drv)
+                return 0;
+
+        if (drv->pm) {
+                if (drv->pm->thaw)
+                        ret = drv->pm->thaw(dev);
+        } else {
+                ret = ibmebus_bus_legacy_resume(dev);
+        }
+
+        return ret;
+}
+
+static int ibmebus_bus_pm_thaw_noirq(struct device *dev)
+{
+        struct device_driver *drv = dev->driver;
+        int ret = 0;
+
+        if (!drv)
+                return 0;
+
+        if (drv->pm) {
+                if (drv->pm->thaw_noirq)
+                        ret = drv->pm->thaw_noirq(dev);
+        }
+
+        return ret;
+}
+
+static int ibmebus_bus_pm_poweroff(struct device *dev)
+{
+        struct device_driver *drv = dev->driver;
+        int ret = 0;
+
+        if (!drv)
+                return 0;
+
+        if (drv->pm) {
+                if (drv->pm->poweroff)
+                        ret = drv->pm->poweroff(dev);
+        } else {
+                ret = ibmebus_bus_legacy_suspend(dev, PMSG_HIBERNATE);
+        }
+
+        return ret;
+}
+
+static int ibmebus_bus_pm_poweroff_noirq(struct device *dev)
+{
+        struct device_driver *drv = dev->driver;
+        int ret = 0;
+
+        if (!drv)
+                return 0;
+
+        if (drv->pm) {
+                if (drv->pm->poweroff_noirq)
+                        ret = drv->pm->poweroff_noirq(dev);
+        }
+
+        return ret;
+}
+
+static int ibmebus_bus_pm_restore(struct device *dev)
+{
+        struct device_driver *drv = dev->driver;
+        int ret = 0;
+
+        if (!drv)
+                return 0;
+
+        if (drv->pm) {
+                if (drv->pm->restore)
+                        ret = drv->pm->restore(dev);
+        } else {
+                ret = ibmebus_bus_legacy_resume(dev);
+        }
+
+        return ret;
+}
+
+static int ibmebus_bus_pm_restore_noirq(struct device *dev)
+{
+        struct device_driver *drv = dev->driver;
+        int ret = 0;
+
+        if (!drv)
+                return 0;
+
+        if (drv->pm) {
+                if (drv->pm->restore_noirq)
+                        ret = drv->pm->restore_noirq(dev);
+        }
+
+        return ret;
+}
+
+#else /* !CONFIG_HIBERNATION */
+
+#define ibmebus_bus_pm_freeze           NULL
+#define ibmebus_bus_pm_thaw             NULL
+#define ibmebus_bus_pm_poweroff         NULL
+#define ibmebus_bus_pm_restore          NULL
+#define ibmebus_bus_pm_freeze_noirq     NULL
+#define ibmebus_bus_pm_thaw_noirq               NULL
+#define ibmebus_bus_pm_poweroff_noirq   NULL
+#define ibmebus_bus_pm_restore_noirq    NULL
+
+#endif /* !CONFIG_HIBERNATION */
+
+static struct dev_pm_ops ibmebus_bus_dev_pm_ops = {
+        .prepare = ibmebus_bus_pm_prepare,
+        .complete = ibmebus_bus_pm_complete,
+        .suspend = ibmebus_bus_pm_suspend,
+        .resume = ibmebus_bus_pm_resume,
+        .freeze = ibmebus_bus_pm_freeze,
+        .thaw = ibmebus_bus_pm_thaw,
+        .poweroff = ibmebus_bus_pm_poweroff,
+        .restore = ibmebus_bus_pm_restore,
+        .suspend_noirq = ibmebus_bus_pm_suspend_noirq,
+        .resume_noirq = ibmebus_bus_pm_resume_noirq,
+        .freeze_noirq = ibmebus_bus_pm_freeze_noirq,
+        .thaw_noirq = ibmebus_bus_pm_thaw_noirq,
+        .poweroff_noirq = ibmebus_bus_pm_poweroff_noirq,
+        .restore_noirq = ibmebus_bus_pm_restore_noirq,
+};
+
+#define IBMEBUS_BUS_PM_OPS_PTR  (&ibmebus_bus_dev_pm_ops)
+
+#else /* !CONFIG_PM_SLEEP */
+
+#define IBMEBUS_BUS_PM_OPS_PTR  NULL
+
+#endif /* !CONFIG_PM_SLEEP */
+
 struct bus_type ibmebus_bus_type = {
+        .name      = "ibmebus",
         .uevent    = of_device_uevent,
-        .bus_attrs = ibmebus_bus_attrs
+        .bus_attrs = ibmebus_bus_attrs,
+        .match     = ibmebus_bus_bus_match,
+        .probe     = ibmebus_bus_device_probe,
+        .remove    = ibmebus_bus_device_remove,
+        .shutdown  = ibmebus_bus_device_shutdown,
+        .dev_attrs = ibmebus_bus_device_attrs,
+        .pm        = IBMEBUS_BUS_PM_OPS_PTR,
 };
 EXPORT_SYMBOL(ibmebus_bus_type);
 
@@ -326,7 +722,7 @@ static int __init ibmebus_bus_init(void)
 
         printk(KERN_INFO "IBM eBus Device Driver\n");
 
-        err = of_bus_type_init(&ibmebus_bus_type, "ibmebus");
+        err = bus_register(&ibmebus_bus_type);
         if (err) {
                 printk(KERN_ERR "%s: failed to register IBM eBus.\n",
                        __func__);
diff --git a/arch/powerpc/kernel/of_platform.c b/arch/powerpc/kernel/of_platform.c
index b2c363ef38ad..24582181b6ec 100644
--- a/arch/powerpc/kernel/of_platform.c
+++ b/arch/powerpc/kernel/of_platform.c
@@ -36,8 +36,7 @@
  * lacking some bits needed here.
  */
 
-static int __devinit of_pci_phb_probe(struct platform_device *dev,
-                                      const struct of_device_id *match)
+static int __devinit of_pci_phb_probe(struct platform_device *dev)
 {
         struct pci_controller *phb;
 
@@ -74,7 +73,7 @@ static int __devinit of_pci_phb_probe(struct platform_device *dev,
 #endif /* CONFIG_EEH */
 
         /* Scan the bus */
-        pcibios_scan_phb(phb, dev->dev.of_node);
+        pcibios_scan_phb(phb);
         if (phb->bus == NULL)
                 return -ENXIO;
 
@@ -104,7 +103,7 @@ static struct of_device_id of_pci_phb_ids[] = {
         {}
 };
 
-static struct of_platform_driver of_pci_phb_driver = {
+static struct platform_driver of_pci_phb_driver = {
         .probe = of_pci_phb_probe,
         .driver = {
                 .name = "of-pci",
@@ -115,7 +114,7 @@ static struct of_platform_driver of_pci_phb_driver = {
 
 static __init int of_pci_phb_init(void)
 {
-        return of_register_platform_driver(&of_pci_phb_driver);
+        return platform_driver_register(&of_pci_phb_driver);
 }
 
 device_initcall(of_pci_phb_init);
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index eb341be9a4d9..3cd85faa8ac6 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1688,13 +1688,8 @@ int early_find_capability(struct pci_controller *hose, int bus, int devfn,
 /**
  * pci_scan_phb - Given a pci_controller, setup and scan the PCI bus
  * @hose: Pointer to the PCI host controller instance structure
- * @sysdata: value to use for sysdata pointer.  ppc32 and ppc64 differ here
- *
- * Note: the 'data' pointer is a temporary measure.  As 32 and 64 bit
- * pci code gets merged, this parameter should become unnecessary because
- * both will use the same value.
  */
-void __devinit pcibios_scan_phb(struct pci_controller *hose, void *sysdata)
+void __devinit pcibios_scan_phb(struct pci_controller *hose)
 {
         struct pci_bus *bus;
         struct device_node *node = hose->dn;
@@ -1704,13 +1699,13 @@ void __devinit pcibios_scan_phb(struct pci_controller *hose, void *sysdata)
                  node ? node->full_name : "<NO NAME>");
 
         /* Create an empty bus for the toplevel */
-        bus = pci_create_bus(hose->parent, hose->first_busno, hose->ops,
-                             sysdata);
+        bus = pci_create_bus(hose->parent, hose->first_busno, hose->ops, hose);
         if (bus == NULL) {
                 pr_err("Failed to create bus for PCI domain %04x\n",
                         hose->global_number);
                 return;
         }
+        bus->dev.of_node = of_node_get(node);
         bus->secondary = hose->first_busno;
         hose->bus = bus;
 
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index e7db5b48004a..bedb370459f2 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -381,7 +381,7 @@ static int __init pcibios_init(void)
                 if (pci_assign_all_buses)
                         hose->first_busno = next_busno;
                 hose->last_busno = 0xff;
-                pcibios_scan_phb(hose, hose);
+                pcibios_scan_phb(hose);
                 pci_bus_add_devices(hose->bus);
                 if (pci_assign_all_buses || next_busno <= hose->last_busno)
                         next_busno = hose->last_busno + pcibios_assign_bus_offset;
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 851577608a78..fc6452b6be9f 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -64,7 +64,7 @@ static int __init pcibios_init(void)
 
         /* Scan all of the recorded PCI controllers.  */
         list_for_each_entry_safe(hose, tmp, &hose_list, list_node) {
-                pcibios_scan_phb(hose, hose->dn);
+                pcibios_scan_phb(hose);
                 pci_bus_add_devices(hose->bus);
         }
 
@@ -242,10 +242,10 @@ long sys_pciconfig_iobase(long which, unsigned long in_bus,
                         break;
                 bus = NULL;
         }
-        if (bus == NULL || bus->sysdata == NULL)
+        if (bus == NULL || bus->dev.of_node == NULL)
                 return -ENODEV;
 
-        hose_node = (struct device_node *)bus->sysdata;
+        hose_node = bus->dev.of_node;
         hose = PCI_DN(hose_node)->phb;
 
         switch (which) {
diff --git a/arch/powerpc/kernel/pci_dn.c b/arch/powerpc/kernel/pci_dn.c
index d56b35ee7f74..29852688ceaa 100644
--- a/arch/powerpc/kernel/pci_dn.c
+++ b/arch/powerpc/kernel/pci_dn.c
@@ -161,7 +161,7 @@ static void *is_devfn_node(struct device_node *dn, void *data)
 /*
  * This is the "slow" path for looking up a device_node from a
  * pci_dev.  It will hunt for the device under its parent's
- * phb and then update sysdata for a future fastpath.
+ * phb and then update of_node pointer.
  *
  * It may also do fixups on the actual device since this happens
  * on the first read/write.
@@ -170,16 +170,19 @@ static void *is_devfn_node(struct device_node *dn, void *data)
  * In this case it may probe for real hardware ("just in case")
  * and add a device_node to the device tree if necessary.
  *
+ * Is this function necessary anymore now that dev->dev.of_node is
+ * used to store the node pointer?
+ *
  */
 struct device_node *fetch_dev_dn(struct pci_dev *dev)
 {
-        struct device_node *orig_dn = dev->sysdata;
+        struct device_node *orig_dn = dev->dev.of_node;
         struct device_node *dn;
         unsigned long searchval = (dev->bus->number << 8) | dev->devfn;
 
         dn = traverse_pci_devices(orig_dn, is_devfn_node, (void *)searchval);
         if (dn)
-                dev->sysdata = dn;
+                dev->dev.of_node = dn;
         return dn;
 }
 EXPORT_SYMBOL(fetch_dev_dn);
diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c
index e751506323b4..1e89a72fd030 100644
--- a/arch/powerpc/kernel/pci_of_scan.c
+++ b/arch/powerpc/kernel/pci_of_scan.c
@@ -135,7 +135,7 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
         pr_debug("    create device, devfn: %x, type: %s\n", devfn, type);
 
         dev->bus = bus;
-        dev->sysdata = node;
+        dev->dev.of_node = of_node_get(node);
         dev->dev.parent = bus->bridge;
         dev->dev.bus = &pci_bus_type;
         dev->devfn = devfn;
@@ -238,7 +238,7 @@ void __devinit of_scan_pci_bridge(struct device_node *node,
         bus->primary = dev->bus->number;
         bus->subordinate = busrange[1];
         bus->bridge_ctl = 0;
-        bus->sysdata = node;
+        bus->dev.of_node = of_node_get(node);
 
         /* parse ranges property */
         /* PCI #address-cells == 3 and #size-cells == 2 always */