Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  radeonfb/aty128fb: Disable broken early resume hook for PowerBooks
  hvc_console: Remove tty->low_latency on pseries backends
  powerpc: fix linkstation and storcenter compilation breakage
  powerpc/4xx: Enable SERIAL_OF support by default for Virtex platforms

10 files changed, 64 insertions, 111 deletions

diff --git a/arch/powerpc/configs/40x/virtex_defconfig b/arch/powerpc/configs/40x/virtex_defconfig
index b6888384dd74..f5698f962e58 100644
--- a/arch/powerpc/configs/40x/virtex_defconfig
+++ b/arch/powerpc/configs/40x/virtex_defconfig
@@ -686,7 +686,7 @@ CONFIG_SERIAL_UARTLITE_CONSOLE=y
 CONFIG_SERIAL_CORE=y
 CONFIG_SERIAL_CORE_CONSOLE=y
 # CONFIG_SERIAL_JSM is not set
-# CONFIG_SERIAL_OF_PLATFORM is not set
+CONFIG_SERIAL_OF_PLATFORM=y
 # CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL is not set
 CONFIG_UNIX98_PTYS=y
 # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
diff --git a/arch/powerpc/configs/44x/virtex5_defconfig b/arch/powerpc/configs/44x/virtex5_defconfig
index 15aab1ca6384..1bf0a63614b1 100644
--- a/arch/powerpc/configs/44x/virtex5_defconfig
+++ b/arch/powerpc/configs/44x/virtex5_defconfig
@@ -691,7 +691,7 @@ CONFIG_SERIAL_UARTLITE_CONSOLE=y
 CONFIG_SERIAL_CORE=y
 CONFIG_SERIAL_CORE_CONSOLE=y
 # CONFIG_SERIAL_JSM is not set
-# CONFIG_SERIAL_OF_PLATFORM is not set
+CONFIG_SERIAL_OF_PLATFORM=y
 # CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL is not set
 CONFIG_UNIX98_PTYS=y
 # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
diff --git a/arch/powerpc/configs/linkstation_defconfig b/arch/powerpc/configs/linkstation_defconfig
index aa5855a156de..15900dcf0bfa 100644
--- a/arch/powerpc/configs/linkstation_defconfig
+++ b/arch/powerpc/configs/linkstation_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.29-rc2
-# Mon Jan 26 15:35:29 2009
+# Linux kernel version: 2.6.29-rc6
+# Fri Mar  6 00:07:38 2009
 #
 # CONFIG_PPC64 is not set
 
@@ -71,6 +71,15 @@ CONFIG_POSIX_MQUEUE=y
 # CONFIG_BSD_PROCESS_ACCT is not set
 # CONFIG_TASKSTATS is not set
 # CONFIG_AUDIT is not set
+
+#
+# RCU Subsystem
+#
+CONFIG_CLASSIC_RCU=y
+# CONFIG_TREE_RCU is not set
+# CONFIG_PREEMPT_RCU is not set
+# CONFIG_TREE_RCU_TRACE is not set
+# CONFIG_PREEMPT_RCU_TRACE is not set
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
@@ -88,6 +97,7 @@ CONFIG_NAMESPACES=y
 # CONFIG_IPC_NS is not set
 # CONFIG_USER_NS is not set
 # CONFIG_PID_NS is not set
+# CONFIG_NET_NS is not set
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_INITRAMFS_SOURCE=""
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
@@ -153,11 +163,6 @@ CONFIG_DEFAULT_AS=y
 # CONFIG_DEFAULT_CFQ is not set
 # CONFIG_DEFAULT_NOOP is not set
 CONFIG_DEFAULT_IOSCHED="anticipatory"
-CONFIG_CLASSIC_RCU=y
-# CONFIG_TREE_RCU is not set
-# CONFIG_PREEMPT_RCU is not set
-# CONFIG_TREE_RCU_TRACE is not set
-# CONFIG_PREEMPT_RCU_TRACE is not set
 # CONFIG_FREEZER is not set
 
 #
@@ -294,7 +299,6 @@ CONFIG_NET=y
 #
 # Networking options
 #
-# CONFIG_NET_NS is not set
 CONFIG_COMPAT_NET_DEV_OPS=y
 CONFIG_PACKET=y
 CONFIG_PACKET_MMAP=y
@@ -508,8 +512,8 @@ CONFIG_MTD_CONCAT=y
 CONFIG_MTD_PARTITIONS=y
 # CONFIG_MTD_TESTS is not set
 # CONFIG_MTD_REDBOOT_PARTS is not set
-# CONFIG_MTD_CMDLINE_PARTS is not set
-# CONFIG_MTD_OF_PARTS is not set
+CONFIG_MTD_CMDLINE_PARTS=y
+CONFIG_MTD_OF_PARTS=y
 # CONFIG_MTD_AR7_PARTS is not set
 
 #
@@ -587,7 +591,6 @@ CONFIG_MTD_PHYSMAP=y
 # LPDDR flash memory drivers
 #
 # CONFIG_MTD_LPDDR is not set
-# CONFIG_MTD_QINFO_PROBE is not set
 
 #
 # UBI - Unsorted block images
@@ -617,13 +620,19 @@ CONFIG_BLK_DEV_RAM_SIZE=8192
 # CONFIG_BLK_DEV_HD is not set
 CONFIG_MISC_DEVICES=y
 # CONFIG_PHANTOM is not set
-# CONFIG_EEPROM_93CX6 is not set
 # CONFIG_SGI_IOC4 is not set
 # CONFIG_TIFM_CORE is not set
 # CONFIG_ICS932S401 is not set
 # CONFIG_ENCLOSURE_SERVICES is not set
 # CONFIG_HP_ILO is not set
 # CONFIG_C2PORT is not set
+
+#
+# EEPROM support
+#
+# CONFIG_EEPROM_AT24 is not set
+CONFIG_EEPROM_LEGACY=m
+# CONFIG_EEPROM_93CX6 is not set
 CONFIG_HAVE_IDE=y
 # CONFIG_IDE is not set
 
@@ -839,6 +848,7 @@ CONFIG_R8169=y
 # CONFIG_QLA3XXX is not set
 # CONFIG_ATL1 is not set
 # CONFIG_ATL1E is not set
+# CONFIG_ATL1C is not set
 # CONFIG_JME is not set
 CONFIG_NETDEV_10000=y
 # CONFIG_CHELSIO_T1 is not set
@@ -1037,8 +1047,6 @@ CONFIG_I2C_MPC=y
 # Miscellaneous I2C Chip support
 #
 # CONFIG_DS1682 is not set
-# CONFIG_EEPROM_AT24 is not set
-CONFIG_EEPROM_LEGACY=m
 # CONFIG_SENSORS_PCF8574 is not set
 # CONFIG_PCF8575 is not set
 # CONFIG_SENSORS_PCA9539 is not set
diff --git a/arch/powerpc/configs/storcenter_defconfig b/arch/powerpc/configs/storcenter_defconfig
index 86512c8790d1..94903465ea12 100644
--- a/arch/powerpc/configs/storcenter_defconfig
+++ b/arch/powerpc/configs/storcenter_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.29-rc2
-# Mon Jan 26 15:35:46 2009
+# Linux kernel version: 2.6.29-rc6
+# Fri Mar  6 00:09:08 2009
 #
 # CONFIG_PPC64 is not set
 
@@ -71,6 +71,15 @@ CONFIG_SYSVIPC_SYSCTL=y
 # CONFIG_BSD_PROCESS_ACCT is not set
 # CONFIG_TASKSTATS is not set
 # CONFIG_AUDIT is not set
+
+#
+# RCU Subsystem
+#
+CONFIG_CLASSIC_RCU=y
+# CONFIG_TREE_RCU is not set
+# CONFIG_PREEMPT_RCU is not set
+# CONFIG_TREE_RCU_TRACE is not set
+# CONFIG_PREEMPT_RCU_TRACE is not set
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_GROUP_SCHED=y
@@ -144,11 +153,6 @@ CONFIG_IOSCHED_CFQ=y
 CONFIG_DEFAULT_CFQ=y
 # CONFIG_DEFAULT_NOOP is not set
 CONFIG_DEFAULT_IOSCHED="cfq"
-CONFIG_CLASSIC_RCU=y
-# CONFIG_TREE_RCU is not set
-# CONFIG_PREEMPT_RCU is not set
-# CONFIG_TREE_RCU_TRACE is not set
-# CONFIG_PREEMPT_RCU_TRACE is not set
 # CONFIG_FREEZER is not set
 
 #
@@ -377,8 +381,8 @@ CONFIG_MTD=y
 CONFIG_MTD_PARTITIONS=y
 # CONFIG_MTD_TESTS is not set
 # CONFIG_MTD_REDBOOT_PARTS is not set
-# CONFIG_MTD_CMDLINE_PARTS is not set
-# CONFIG_MTD_OF_PARTS is not set
+CONFIG_MTD_CMDLINE_PARTS=y
+CONFIG_MTD_OF_PARTS=y
 # CONFIG_MTD_AR7_PARTS is not set
 
 #
@@ -452,7 +456,6 @@ CONFIG_MTD_PHYSMAP=y
 # LPDDR flash memory drivers
 #
 # CONFIG_MTD_LPDDR is not set
-# CONFIG_MTD_QINFO_PROBE is not set
 
 #
 # UBI - Unsorted block images
@@ -478,13 +481,19 @@ CONFIG_BLK_DEV=y
 # CONFIG_BLK_DEV_HD is not set
 CONFIG_MISC_DEVICES=y
 # CONFIG_PHANTOM is not set
-# CONFIG_EEPROM_93CX6 is not set
 # CONFIG_SGI_IOC4 is not set
 # CONFIG_TIFM_CORE is not set
 # CONFIG_ICS932S401 is not set
 # CONFIG_ENCLOSURE_SERVICES is not set
 # CONFIG_HP_ILO is not set
 # CONFIG_C2PORT is not set
+
+#
+# EEPROM support
+#
+# CONFIG_EEPROM_AT24 is not set
+# CONFIG_EEPROM_LEGACY is not set
+# CONFIG_EEPROM_93CX6 is not set
 CONFIG_HAVE_IDE=y
 CONFIG_IDE=y
 
@@ -677,6 +686,7 @@ CONFIG_R8169=y
 # CONFIG_QLA3XXX is not set
 # CONFIG_ATL1 is not set
 # CONFIG_ATL1E is not set
+# CONFIG_ATL1C is not set
 # CONFIG_JME is not set
 # CONFIG_NETDEV_10000 is not set
 # CONFIG_TR is not set
@@ -818,8 +828,6 @@ CONFIG_I2C_MPC=y
 # Miscellaneous I2C Chip support
 #
 # CONFIG_DS1682 is not set
-# CONFIG_EEPROM_AT24 is not set
-# CONFIG_EEPROM_LEGACY is not set
 # CONFIG_SENSORS_PCF8574 is not set
 # CONFIG_PCF8575 is not set
 # CONFIG_SENSORS_PCA9539 is not set
@@ -1159,6 +1167,7 @@ CONFIG_JFFS2_RTIME=y
 # CONFIG_SYSV_FS is not set
 # CONFIG_UFS_FS is not set
 # CONFIG_NETWORK_FILESYSTEMS is not set
+CONFIG_EXPORTFS=m
 
 #
 # Partition Types
diff --git a/arch/powerpc/platforms/embedded6xx/linkstation.c b/arch/powerpc/platforms/embedded6xx/linkstation.c
index 2ca7be65c2d2..244f997de791 100644
--- a/arch/powerpc/platforms/embedded6xx/linkstation.c
+++ b/arch/powerpc/platforms/embedded6xx/linkstation.c
@@ -12,7 +12,6 @@
 
 #include <linux/kernel.h>
 #include <linux/initrd.h>
-#include <linux/mtd/physmap.h>
 #include <linux/of_platform.h>
 
 #include <asm/time.h>
@@ -22,39 +21,6 @@
 
 #include "mpc10x.h"
 
-static struct mtd_partition linkstation_physmap_partitions[] = {
-        {
-                .name   = "mtd_firmimg",
-                .offset = 0x000000,
-                .size   = 0x300000,
-        },
-        {
-                .name   = "mtd_bootcode",
-                .offset = 0x300000,
-                .size   = 0x070000,
-        },
-        {
-                .name   = "mtd_status",
-                .offset = 0x370000,
-                .size   = 0x010000,
-        },
-        {
-                .name   = "mtd_conf",
-                .offset = 0x380000,
-                .size   = 0x080000,
-        },
-        {
-                .name   = "mtd_allflash",
-                .offset = 0x000000,
-                .size   = 0x400000,
-        },
-        {
-                .name   = "mtd_data",
-                .offset = 0x310000,
-                .size   = 0x0f0000,
-        },
-};
-
 static __initdata struct of_device_id of_bus_ids[] = {
         { .type = "soc", },
         { .compatible = "simple-bus", },
@@ -99,10 +65,6 @@ static int __init linkstation_add_bridge(struct device_node *dev)
 static void __init linkstation_setup_arch(void)
 {
         struct device_node *np;
-#ifdef CONFIG_MTD_PHYSMAP
-        physmap_set_partitions(linkstation_physmap_partitions,
-                               ARRAY_SIZE(linkstation_physmap_partitions));
-#endif
 
         /* Lookup PCI host bridges */
         for_each_compatible_node(np, "pci", "mpc10x-pci")
diff --git a/arch/powerpc/platforms/embedded6xx/storcenter.c b/arch/powerpc/platforms/embedded6xx/storcenter.c
index 8864e4884980..613070e9ddbe 100644
--- a/arch/powerpc/platforms/embedded6xx/storcenter.c
+++ b/arch/powerpc/platforms/embedded6xx/storcenter.c
@@ -14,7 +14,6 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/initrd.h>
-#include <linux/mtd/physmap.h>
 #include <linux/of_platform.h>
 
 #include <asm/system.h>
@@ -26,32 +25,6 @@
 #include "mpc10x.h"
 
 
-#ifdef CONFIG_MTD_PHYSMAP
-static struct mtd_partition storcenter_physmap_partitions[] = {
-        {
-                .name   = "kernel",
-                .offset = 0x000000,
-                .size   = 0x170000,
-        },
-        {
-                .name   = "rootfs",
-                .offset = 0x170000,
-                .size   = 0x590000,
-        },
-        {
-                .name   = "uboot",
-                .offset = 0x700000,
-                .size   = 0x040000,
-        },
-        {
-                .name   = "config",
-                .offset = 0x740000,
-                .size   = 0x0c0000,
-        },
-};
-#endif
-
-
 static __initdata struct of_device_id storcenter_of_bus[] = {
         { .name = "soc", },
         {},
@@ -96,11 +69,6 @@ static void __init storcenter_setup_arch(void)
 {
         struct device_node *np;
 
-#ifdef CONFIG_MTD_PHYSMAP
-        physmap_set_partitions(storcenter_physmap_partitions,
-                               ARRAY_SIZE(storcenter_physmap_partitions));
-#endif
-
         /* Lookup PCI host bridges */
         for_each_compatible_node(np, "pci", "mpc10x-pci")
                 storcenter_add_bridge(np);
diff --git a/drivers/char/hvcs.c b/drivers/char/hvcs.c
index 6e6eb445d374..c76bccf5354d 100644
--- a/drivers/char/hvcs.c
+++ b/drivers/char/hvcs.c
@@ -1139,15 +1139,6 @@ static int hvcs_open(struct tty_struct *tty, struct file *filp)
         hvcsd->tty = tty;
         tty->driver_data = hvcsd;
 
-        /*
-         * Set this driver to low latency so that we actually have a chance at
-         * catching a throttled TTY after we flip_buffer_push.  Otherwise the
-         * flush_to_async may not execute until after the kernel_thread has
-         * yielded and resumed the next flip_buffer_push resulting in data
-         * loss.
-         */
-        tty->low_latency = 1;
-
         memset(&hvcsd->buffer[0], 0x00, HVCS_BUFF_LEN);
 
         /*
diff --git a/drivers/char/hvsi.c b/drivers/char/hvsi.c
index 406f8742a260..2989056a9e39 100644
--- a/drivers/char/hvsi.c
+++ b/drivers/char/hvsi.c
@@ -810,7 +810,6 @@ static int hvsi_open(struct tty_struct *tty, struct file *filp)
         hp = &hvsi_ports[line];
 
         tty->driver_data = hp;
-        tty->low_latency = 1; /* avoid throttle/tty_flip_buffer_push race */
 
         mb();
         if (hp->state == HVSI_FSP_DIED)
diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index 2181ce4d7ebd..35e8eb02b9e9 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -1853,13 +1853,14 @@ static void aty128_bl_exit(struct backlight_device *bd)
  *  Initialisation
  */
 
-#ifdef CONFIG_PPC_PMAC
+#ifdef CONFIG_PPC_PMAC__disabled
 static void aty128_early_resume(void *data)
 {
         struct aty128fb_par *par = data;
 
         if (try_acquire_console_sem())
                 return;
+        pci_restore_state(par->pdev);
         aty128_do_resume(par->pdev);
         release_console_sem();
 }
@@ -1907,7 +1908,14 @@ static int __devinit aty128_init(struct pci_dev *pdev, const struct pci_device_i
                 /* Indicate sleep capability */
                 if (par->chip_gen == rage_M3) {
                         pmac_call_feature(PMAC_FTR_DEVICE_CAN_WAKE, NULL, 0, 1);
+#if 0 /* Disable the early video resume hack for now as it's causing problems, among
+       * others we now rely on the PCI core restoring the config space for us, which
+       * isn't the case with that hack, and that code path causes various things to
+       * be called with interrupts off while they shouldn't. I'm leaving the code in
+       * as it can be useful for debugging purposes
+       */
                         pmac_set_early_video_resume(aty128_early_resume, par);
+#endif
                 }
 
                 /* Find default mode */
diff --git a/drivers/video/aty/radeon_pm.c b/drivers/video/aty/radeon_pm.c
index ca5f0dc28546..81603f85e17e 100644
--- a/drivers/video/aty/radeon_pm.c
+++ b/drivers/video/aty/radeon_pm.c
@@ -2762,12 +2762,13 @@ int radeonfb_pci_resume(struct pci_dev *pdev)
         return rc;
 }
 
-#ifdef CONFIG_PPC_OF
+#ifdef CONFIG_PPC_OF__disabled
 static void radeonfb_early_resume(void *data)
 {
         struct radeonfb_info *rinfo = data;
 
         rinfo->no_schedule = 1;
+        pci_restore_state(rinfo->pdev);
         radeonfb_pci_resume(rinfo->pdev);
         rinfo->no_schedule = 0;
 }
@@ -2834,7 +2835,14 @@ void radeonfb_pm_init(struct radeonfb_info *rinfo, int dynclk, int ignore_devlis
                  */
                 if (rinfo->pm_mode != radeon_pm_none) {
                         pmac_call_feature(PMAC_FTR_DEVICE_CAN_WAKE, rinfo->of_node, 0, 1);
+#if 0 /* Disable the early video resume hack for now as it's causing problems, among
+       * others we now rely on the PCI core restoring the config space for us, which
+       * isn't the case with that hack, and that code path causes various things to
+       * be called with interrupts off while they shouldn't. I'm leaving the code in
+       * as it can be useful for debugging purposes
+       */
                         pmac_set_early_video_resume(radeonfb_early_resume, rinfo);
+#endif
                 }
 
 #if 0