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:
  spi / PM: Support dev_pm_ops
  PM: Prototype the pm_generic_ operations
  PM / Runtime: Generic resume shouldn't set RPM_ACTIVE unconditionally
  PM: Use dev_name() in core device suspend and resume routines
  PM: Permit registration of parentless devices during system suspend
  PM: Replace the device power.status field with a bit field
  PM: Remove redundant checks from core device resume routines
  PM: Use a different list of devices for each stage of device suspend
  PM: Avoid compiler warning in pm_noirq_op()
  PM: Use pm_wakeup_pending() in __device_suspend()
  PM / Wakeup: Replace pm_check_wakeup_events() with pm_wakeup_pending()
  PM: Prevent dpm_prepare() from returning errors unnecessarily
  PM: Fix references to basic-pm-debugging.txt in drivers-testing.txt
  PM / Runtime: Add synchronous runtime interface for interrupt handlers (v3)
  PM / Hibernate: When failed, in_suspend should be reset
  PM / Hibernate: hibernation_ops->leave should be checked too
  Freezer: Fix a race during freezing of TASK_STOPPED tasks
  PM: Use proper ccflag flag in kernel/power/Makefile
  PM / Runtime: Fix comments to match runtime callback code

4 files changed, 27 insertions, 45 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index dd4895313468..45bc8c1669d2 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -508,13 +508,13 @@ static inline int device_is_registered(struct device *dev)
 
 static inline void device_enable_async_suspend(struct device *dev)
 {
-        if (dev->power.status == DPM_ON)
+        if (!dev->power.in_suspend)
                 dev->power.async_suspend = true;
 }
 
 static inline void device_disable_async_suspend(struct device *dev)
 {
-        if (dev->power.status == DPM_ON)
+        if (!dev->power.in_suspend)
                 dev->power.async_suspend = false;
 }
 
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 40f3f45702ba..dd9c7ab38270 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -367,45 +367,6 @@ extern struct dev_pm_ops generic_subsys_pm_ops;
                                         { .event = PM_EVENT_AUTO_RESUME, })
 
 /**
- * Device power management states
- *
- * These state labels are used internally by the PM core to indicate the current
- * status of a device with respect to the PM core operations.
- *
- * DPM_ON               Device is regarded as operational.  Set this way
- *                      initially and when ->complete() is about to be called.
- *                      Also set when ->prepare() fails.
- *
- * DPM_PREPARING        Device is going to be prepared for a PM transition.  Set
- *                      when ->prepare() is about to be called.
- *
- * DPM_RESUMING         Device is going to be resumed.  Set when ->resume(),
- *                      ->thaw(), or ->restore() is about to be called.
- *
- * DPM_SUSPENDING       Device has been prepared for a power transition.  Set
- *                      when ->prepare() has just succeeded.
- *
- * DPM_OFF              Device is regarded as inactive.  Set immediately after
- *                      ->suspend(), ->freeze(), or ->poweroff() has succeeded.
- *                      Also set when ->resume()_noirq, ->thaw_noirq(), or
- *                      ->restore_noirq() is about to be called.
- *
- * DPM_OFF_IRQ          Device is in a "deep sleep".  Set immediately after
- *                      ->suspend_noirq(), ->freeze_noirq(), or
- *                      ->poweroff_noirq() has just succeeded.
- */
-
-enum dpm_state {
-        DPM_INVALID,
-        DPM_ON,
-        DPM_PREPARING,
-        DPM_RESUMING,
-        DPM_SUSPENDING,
-        DPM_OFF,
-        DPM_OFF_IRQ,
-};
-
-/**
  * Device run-time power management status.
  *
  * These status labels are used internally by the PM core to indicate the
@@ -463,8 +424,8 @@ struct wakeup_source;
 struct dev_pm_info {
         pm_message_t            power_state;
         unsigned int            can_wakeup:1;
-        unsigned                async_suspend:1;
-        enum dpm_state          status;         /* Owned by the PM core */
+        unsigned int            async_suspend:1;
+        unsigned int            in_suspend:1;   /* Owned by the PM core */
         spinlock_t              lock;
 #ifdef CONFIG_PM_SLEEP
         struct list_head        entry;
@@ -486,6 +447,7 @@ struct dev_pm_info {
         unsigned int            run_wake:1;
         unsigned int            runtime_auto:1;
         unsigned int            no_callbacks:1;
+        unsigned int            irq_safe:1;
         unsigned int            use_autosuspend:1;
         unsigned int            timer_autosuspends:1;
         enum rpm_request        request;
@@ -610,4 +572,11 @@ 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);
+extern int pm_generic_thaw(struct device *dev);
+extern int pm_generic_restore(struct device *dev);
+extern int pm_generic_poweroff(struct device *dev);
+
 #endif /* _LINUX_PM_H */
diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index d19f1cca7f74..d34f067e2a7f 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -40,6 +40,7 @@ extern int pm_generic_runtime_idle(struct device *dev);
 extern int pm_generic_runtime_suspend(struct device *dev);
 extern int pm_generic_runtime_resume(struct device *dev);
 extern void pm_runtime_no_callbacks(struct device *dev);
+extern void pm_runtime_irq_safe(struct device *dev);
 extern void __pm_runtime_use_autosuspend(struct device *dev, bool use);
 extern void pm_runtime_set_autosuspend_delay(struct device *dev, int delay);
 extern unsigned long pm_runtime_autosuspend_expiration(struct device *dev);
@@ -81,6 +82,11 @@ static inline bool pm_runtime_suspended(struct device *dev)
                 && !dev->power.disable_depth;
 }
 
+static inline bool pm_runtime_enabled(struct device *dev)
+{
+        return !dev->power.disable_depth;
+}
+
 static inline void pm_runtime_mark_last_busy(struct device *dev)
 {
         ACCESS_ONCE(dev->power.last_busy) = jiffies;
@@ -119,11 +125,13 @@ static inline void pm_runtime_put_noidle(struct device *dev) {}
 static inline bool device_run_wake(struct device *dev) { return false; }
 static inline void device_set_run_wake(struct device *dev, bool enable) {}
 static inline bool pm_runtime_suspended(struct device *dev) { return false; }
+static inline bool pm_runtime_enabled(struct device *dev) { return false; }
 
 static inline int pm_generic_runtime_idle(struct device *dev) { return 0; }
 static inline int pm_generic_runtime_suspend(struct device *dev) { return 0; }
 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 void pm_runtime_mark_last_busy(struct device *dev) {}
 static inline void __pm_runtime_use_autosuspend(struct device *dev,
@@ -196,6 +204,11 @@ static inline int pm_runtime_put_sync(struct device *dev)
         return __pm_runtime_idle(dev, RPM_GET_PUT);
 }
 
+static inline int pm_runtime_put_sync_suspend(struct device *dev)
+{
+        return __pm_runtime_suspend(dev, RPM_GET_PUT);
+}
+
 static inline int pm_runtime_put_sync_autosuspend(struct device *dev)
 {
         return __pm_runtime_suspend(dev, RPM_GET_PUT | RPM_AUTO);
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 26697514c5ec..144b34be5c32 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -292,7 +292,7 @@ extern int unregister_pm_notifier(struct notifier_block *nb);
 /* drivers/base/power/wakeup.c */
 extern bool events_check_enabled;
 
-extern bool pm_check_wakeup_events(void);
+extern bool pm_wakeup_pending(void);
 extern bool pm_get_wakeup_count(unsigned int *count);
 extern bool pm_save_wakeup_count(unsigned int count);
 #else /* !CONFIG_PM_SLEEP */
@@ -309,7 +309,7 @@ static inline int unregister_pm_notifier(struct notifier_block *nb)
 
 #define pm_notifier(fn, pri)    do { (void)(fn); } while (0)
 
-static inline bool pm_check_wakeup_events(void) { return true; }
+static inline bool pm_wakeup_pending(void) { return false; }
 #endif /* !CONFIG_PM_SLEEP */
 
 extern struct mutex pm_mutex;