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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-07 15:45:35 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-07 15:45:35 -0800
commit5980bb3ee6e733d66eea04c221a140dea15d52de (patch)
tree5365854f6fc7db6cc2d6a5cfc605942058c7a76a /include/linux
parent68ae6b5cc1e8b88754a64140b88e467e02abfea2 (diff)
parentd690b2cd222afc75320b9b8e9da7df02e9e630ca (diff)
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: PM: Provide generic subsystem-level callbacks PM / Runtime: Document power.runtime_auto and related functions
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/pm.h51
-rw-r--r--include/linux/pm_runtime.h6
2 files changed, 51 insertions, 6 deletions
diff --git a/include/linux/pm.h b/include/linux/pm.h
index e80df06ad22..8e258c72797 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -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
*
diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index 7d773aac531..b776db73724 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -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 */