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

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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
  PM: Provide generic subsystem-level callbacks
  PM / Runtime: Document power.runtime_auto and related functions
This commit is contained in:
Linus Torvalds
2010-03-07 15:45:35 -08:00
parent 68ae6b5cc1 d690b2cd22
commit 5980bb3ee6
5 changed files with 378 additions and 6 deletions
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include/linux/pm.h
+45 -6
View File
@@ -215,20 +215,59 @@ struct dev_pm_ops {
int (*runtime_idle)(struct device *dev);
};
#ifdef CONFIG_PM_SLEEP
#define SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
.suspend = suspend_fn, \
.resume = resume_fn, \
.freeze = suspend_fn, \
.thaw = resume_fn, \
.poweroff = suspend_fn, \
.restore = resume_fn,
#else
#define SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn)
#endif
#ifdef CONFIG_PM_RUNTIME
#define SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
.runtime_suspend = suspend_fn, \
.runtime_resume = resume_fn, \
.runtime_idle = idle_fn,
#else
#define SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn)
#endif
/*
* Use this if you want to use the same suspend and resume callbacks for suspend
* to RAM and hibernation.
*/
#define SIMPLE_DEV_PM_OPS(name, suspend_fn, resume_fn) \
const struct dev_pm_ops name = { \
.suspend = suspend_fn, \
.resume = resume_fn, \
.freeze = suspend_fn, \
.thaw = resume_fn, \
.poweroff = suspend_fn, \
.restore = resume_fn, \
SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
}
/*
* Use this for defining a set of PM operations to be used in all situations
* (sustem suspend, hibernation or runtime PM).
*/
#define UNIVERSAL_DEV_PM_OPS(name, suspend_fn, resume_fn, idle_fn) \
const struct dev_pm_ops name = { \
SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
}
/*
* Use this for subsystems (bus types, device types, device classes) that don't
* need any special suspend/resume handling in addition to invoking the PM
* 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
extern struct dev_pm_ops generic_subsys_pm_ops;
#define GENERIC_SUBSYS_PM_OPS (&generic_subsys_pm_ops)
#else
#define GENERIC_SUBSYS_PM_OPS NULL
#endif
/**
* PM_EVENT_ messages
*
include/linux/pm_runtime.h
+6
View File
@@ -62,6 +62,11 @@ static inline void device_set_run_wake(struct device *dev, bool enable)
dev->power.run_wake = enable;
}
static inline bool pm_runtime_suspended(struct device *dev)
{
return dev->power.runtime_status == RPM_SUSPENDED;
}
#else /* !CONFIG_PM_RUNTIME */
static inline int pm_runtime_idle(struct device *dev) { return -ENOSYS; }
@@ -89,6 +94,7 @@ static inline void pm_runtime_get_noresume(struct device *dev) {}
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; }
#endif /* !CONFIG_PM_RUNTIME */