Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  leds-hp-disk: fix build warning
  ACPI: Oops in ACPI with git latest
  ACPI suspend: build fix for ACPI_SLEEP=n && XEN_SAVE_RESTORE=y.
  toshiba_acpi: always call input_sync() after input_report_switch()
  ACPI: Always report a sync event after a lid state change
  ACPI: cpufreq, processor: fix compile error in drivers/acpi/processor_perflib.c
  i7300_idle: Fix compile warning CONFIG_I7300_IDLE_IOAT_CHANNEL not defined
  i7300_idle: Cleanup based review comments
  i7300_idle: Disable ioat channel only on platforms where ile driver can load

10 files changed, 129 insertions, 94 deletions

diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 9d568d417eaa..cb046c3fc3f2 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -262,6 +262,7 @@ static int acpi_lid_send_state(struct acpi_button *button)
                 return -ENODEV;
         /* input layer checks if event is redundant */
         input_report_switch(button->input, SW_LID, !state);
+        input_sync(button->input);
         return 0;
 }
 
@@ -285,8 +286,8 @@ static void acpi_button_notify(acpi_handle handle, u32 event, void *data)
                         input_report_key(input, keycode, 1);
                         input_sync(input);
                         input_report_key(input, keycode, 0);
+                        input_sync(input);
                 }
-                input_sync(input);
 
                 acpi_bus_generate_proc_event(button->device, event,
                                         ++button->pushed);
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index dc98f7a6f2c4..dbcf260ea93f 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -38,7 +38,10 @@
 
 #include <asm/uaccess.h>
 #endif
+
+#ifdef CONFIG_X86
 #include <asm/cpufeature.h>
+#endif
 
 #include <acpi/acpi_bus.h>
 #include <acpi/processor.h>
@@ -360,11 +363,13 @@ static int acpi_processor_get_performance_info(struct acpi_processor *pr)
          * the BIOS is older than the CPU and does not know its frequencies
          */
  update_bios:
+#ifdef CONFIG_X86
         if (ACPI_SUCCESS(acpi_get_handle(pr->handle, "_PPC", &handle))){
                 if(boot_cpu_has(X86_FEATURE_EST))
                         printk(KERN_WARNING FW_BUG "BIOS needs update for CPU "
                                "frequency support\n");
         }
+#endif
         return result;
 }
 
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index 26571bafb158..80c0868d0480 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -163,6 +163,8 @@ static void acpi_pm_end(void)
         acpi_target_sleep_state = ACPI_STATE_S0;
         acpi_sleep_tts_switch(acpi_target_sleep_state);
 }
+#else /* !CONFIG_ACPI_SLEEP */
+#define acpi_target_sleep_state ACPI_STATE_S0
 #endif /* CONFIG_ACPI_SLEEP */
 
 #ifdef CONFIG_SUSPEND
diff --git a/drivers/acpi/toshiba_acpi.c b/drivers/acpi/toshiba_acpi.c
index 2a632f8b7a05..66aac06f2ac5 100644
--- a/drivers/acpi/toshiba_acpi.c
+++ b/drivers/acpi/toshiba_acpi.c
@@ -371,6 +371,7 @@ static void bt_poll_rfkill(struct input_polled_dev *poll_dev)
                                    RFKILL_STATE_HARD_BLOCKED);
                 input_report_switch(poll_dev->input, SW_RFKILL_ALL,
                                     new_rfk_state);
+                input_sync(poll_dev->input);
         }
 }
 
@@ -842,6 +843,7 @@ static int __init toshiba_acpi_init(void)
         set_bit(EV_SW, toshiba_acpi.poll_dev->input->evbit);
         set_bit(SW_RFKILL_ALL, toshiba_acpi.poll_dev->input->swbit);
         input_report_switch(toshiba_acpi.poll_dev->input, SW_RFKILL_ALL, TRUE);
+        input_sync(toshiba_acpi.poll_dev->input);
 
         ret = input_register_polled_device(toshiba_acpi.poll_dev);
         if (ret) {
diff --git a/drivers/dma/ioat_dma.c b/drivers/dma/ioat_dma.c
index 43b8cefad2c6..b0438c4f0c30 100644
--- a/drivers/dma/ioat_dma.c
+++ b/drivers/dma/ioat_dma.c
@@ -33,6 +33,7 @@
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/workqueue.h>
+#include <linux/i7300_idle.h>
 #include "ioatdma.h"
 #include "ioatdma_registers.h"
 #include "ioatdma_hw.h"
@@ -171,8 +172,10 @@ static int ioat_dma_enumerate_channels(struct ioatdma_device *device)
         xfercap_scale = readb(device->reg_base + IOAT_XFERCAP_OFFSET);
         xfercap = (xfercap_scale == 0 ? -1 : (1UL << xfercap_scale));
 
-#if CONFIG_I7300_IDLE_IOAT_CHANNEL
-        device->common.chancnt--;
+#ifdef  CONFIG_I7300_IDLE_IOAT_CHANNEL
+        if (i7300_idle_platform_probe(NULL, NULL) == 0) {
+                device->common.chancnt--;
+        }
 #endif
         for (i = 0; i < device->common.chancnt; i++) {
                 ioat_chan = kzalloc(sizeof(*ioat_chan), GFP_KERNEL);
diff --git a/drivers/idle/Kconfig b/drivers/idle/Kconfig
index f5b26dd579e4..108264de0ac9 100644
--- a/drivers/idle/Kconfig
+++ b/drivers/idle/Kconfig
@@ -5,12 +5,13 @@ config I7300_IDLE_IOAT_CHANNEL
         bool
 
 config I7300_IDLE
-        tristate "Intel chipset idle power saving driver"
+        tristate "Intel chipset idle memory power saving driver"
         select I7300_IDLE_IOAT_CHANNEL
-        depends on X86_64
+        depends on X86_64 && EXPERIMENTAL
         help
-          Enable idle power savings with certain Intel server chipsets.
-          The chipset must have I/O AT support, such as the Intel 7300.
-          The power savings depends on the type and quantity of DRAM devices.
+          Enable memory power savings when idle with certain Intel server
+          chipsets. The chipset must have I/O AT support, such as the
+          Intel 7300. The power savings depends on the type and quantity of
+          DRAM devices.
 
 endmenu
diff --git a/drivers/idle/i7300_idle.c b/drivers/idle/i7300_idle.c
index 59d1bbc3cd3c..fb176f6ef9f8 100644
--- a/drivers/idle/i7300_idle.c
+++ b/drivers/idle/i7300_idle.c
@@ -25,6 +25,7 @@
 #include <linux/delay.h>
 #include <linux/debugfs.h>
 #include <linux/stop_machine.h>
+#include <linux/i7300_idle.h>
 
 #include <asm/idle.h>
 
@@ -34,6 +35,8 @@
 #define I7300_IDLE_DRIVER_VERSION       "1.55"
 #define I7300_PRINT                     "i7300_idle:"
 
+#define MAX_STOP_RETRIES        10
+
 static int debug;
 module_param_named(debug, debug, uint, 0644);
 MODULE_PARM_DESC(debug, "Enable debug printks in this driver");
@@ -46,12 +49,12 @@ MODULE_PARM_DESC(debug, "Enable debug printks in this driver");
  *  0 = No throttling
  *  1 = Throttle when > 4 activations per eval window (Maximum throttling)
  *  2 = Throttle when > 8 activations