Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: (21 commits)
  PM / Hibernate: Reduce autotuned default image size
  PM / Core: Introduce struct syscore_ops for core subsystems PM
  PM QoS: Make pm_qos settings readable
  PM / OPP: opp_find_freq_exact() documentation fix
  PM: Documentation/power/states.txt: fix repetition
  PM: Make system-wide PM and runtime PM treat subsystems consistently
  PM: Simplify kernel/power/Kconfig
  PM: Add support for device power domains
  PM: Drop pm_flags that is not necessary
  PM: Allow pm_runtime_suspend() to succeed during system suspend
  PM: Clean up PM_TRACE dependencies and drop unnecessary Kconfig option
  PM: Remove CONFIG_PM_OPS
  PM: Reorder power management Kconfig options
  PM: Make CONFIG_PM depend on (CONFIG_PM_SLEEP || CONFIG_PM_RUNTIME)
  PM / ACPI: Remove references to pm_flags from bus.c
  PM: Do not create wakeup sysfs files for devices that cannot wake up
  USB / Hub: Do not call device_set_wakeup_capable() under spinlock
  PM: Use appropriate printk() priority level in trace.c
  PM / Wakeup: Don't update events_check_enabled in pm_get_wakeup_count()
  PM / Wakeup: Make pm_save_wakeup_count() work as documented
  ...

6 files changed, 47 insertions, 18 deletions

diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 78ca429929f7..ff103ba96b78 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -381,7 +381,7 @@ struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
 int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state);
 int acpi_disable_wakeup_device_power(struct acpi_device *dev);
 
-#ifdef CONFIG_PM_OPS
+#ifdef CONFIG_PM
 int acpi_pm_device_sleep_state(struct device *, int *);
 #else
 static inline int acpi_pm_device_sleep_state(struct device *d, int *p)
diff --git a/include/linux/device.h b/include/linux/device.h
index ca5d25225aab..dba775a68752 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -420,6 +420,7 @@ struct device {
         void            *platform_data; /* Platform specific data, device
                                            core doesn't touch it */
         struct dev_pm_info      power;
+        struct dev_power_domain *pwr_domain;
 
 #ifdef CONFIG_NUMA
         int             numa_node;      /* NUMA node this device is close to */
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 21415cc91cbb..6618216bb973 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -267,7 +267,7 @@ const struct dev_pm_ops name = { \
  * callbacks provided by device drivers supporting both the system sleep PM and
  * runtime PM, make the pm member point to generic_subsys_pm_ops.
  */
-#ifdef CONFIG_PM_OPS
+#ifdef CONFIG_PM
 extern struct dev_pm_ops generic_subsys_pm_ops;
 #define GENERIC_SUBSYS_PM_OPS   (&generic_subsys_pm_ops)
 #else
@@ -465,6 +465,14 @@ struct dev_pm_info {
 
 extern void update_pm_runtime_accounting(struct device *dev);
 
+/*
+ * Power domains provide callbacks that are executed during system suspend,
+ * hibernation, system resume and during runtime PM transitions along with
+ * subsystem-level and driver-level callbacks.
+ */
+struct dev_power_domain {
+        struct dev_pm_ops       ops;
+};
 
 /*
  * The PM_EVENT_ messages are also used by drivers implementing the legacy
@@ -565,15 +573,6 @@ enum dpm_order {
         DPM_ORDER_DEV_LAST,
 };
 
-/*
- * Global Power Management flags
- * Used to keep APM and ACPI from both being active
- */
-extern unsigned int     pm_flags;
-
-#define PM_APM  1
-#define PM_ACPI 2
-
 extern int pm_generic_suspend(struct device *dev);
 extern int pm_generic_resume(struct device *dev);
 extern int pm_generic_freeze(struct device *dev);
diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index d34f067e2a7f..8de9aa6e7def 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -87,6 +87,11 @@ static inline bool pm_runtime_enabled(struct device *dev)
         return !dev->power.disable_depth;
 }
 
+static inline bool pm_runtime_callbacks_present(struct device *dev)
+{
+        return !dev->power.no_callbacks;
+}
+
 static inline void pm_runtime_mark_last_busy(struct device *dev)
 {
         ACCESS_ONCE(dev->power.last_busy) = jiffies;
@@ -133,6 +138,7 @@ static inline int pm_generic_runtime_resume(struct device *dev) { return 0; }
 static inline void pm_runtime_no_callbacks(struct device *dev) {}
 static inline void pm_runtime_irq_safe(struct device *dev) {}
 
+static inline bool pm_runtime_callbacks_present(struct device *dev) { return false; }
 static inline void pm_runtime_mark_last_busy(struct device *dev) {}
 static inline void __pm_runtime_use_autosuspend(struct device *dev,
                                                 bool use) {}
diff --git a/include/linux/pm_wakeup.h b/include/linux/pm_wakeup.h
index 03a67db03d01..a32da962d693 100644
--- a/include/linux/pm_wakeup.h
+++ b/include/linux/pm_wakeup.h
@@ -62,18 +62,11 @@ struct wakeup_source {
  * Changes to device_may_wakeup take effect on the next pm state change.
  */
 
-static inline void device_set_wakeup_capable(struct device *dev, bool capable)
-{
-        dev->power.can_wakeup = capable;
-}
-
 static inline bool device_can_wakeup(struct device *dev)
 {
         return dev->power.can_wakeup;
 }
 
-
-
 static inline bool device_may_wakeup(struct device *dev)
 {
         return dev->power.can_wakeup && !!dev->power.wakeup;
@@ -88,6 +81,7 @@ extern struct wakeup_source *wakeup_source_register(const char *name);
 extern void wakeup_source_unregister(struct wakeup_source *ws);
 extern int device_wakeup_enable(struct device *dev);
 extern int device_wakeup_disable(struct device *dev);
+extern void device_set_wakeup_capable(struct device *dev, bool capable);
 extern int device_init_wakeup(struct device *dev, bool val);
 extern int device_set_wakeup_enable(struct device *dev, bool enable);
 extern void __pm_stay_awake(struct wakeup_source *ws);
diff --git a/include/linux/syscore_ops.h b/include/linux/syscore_ops.h
new file mode 100644
index 000000000000..27b3b0bc41a9
--- /dev/null
+++ b/include/linux/syscore_ops.h
@@ -0,0 +1,29 @@
+/*
+ *  syscore_ops.h - System core operations.
+ *
+ *  Copyright (C) 2011 Rafael J. Wysocki <rjw@sisk.pl>, Novell Inc.
+ *
+ *  This file is released under the GPLv2.
+ */
+
+#ifndef _LINUX_SYSCORE_OPS_H
+#define _LINUX_SYSCORE_OPS_H
+
+#include <linux/list.h>
+
+struct syscore_ops {
+        struct list_head node;
+        int (*suspend)(void);
+        void (*resume)(void);
+        void (*shutdown)(void);
+};
+
+extern void register_syscore_ops(struct syscore_ops *ops);
+extern void unregister_syscore_ops(struct syscore_ops *ops);
+#ifdef CONFIG_PM_SLEEP
+extern int syscore_suspend(void);
+extern void syscore_resume(void);
+#endif
+extern void syscore_shutdown(void);
+
+#endif