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Diffstat (limited to 'include/linux/pm_runtime.h')
-rw-r--r--include/linux/pm_runtime.h121
1 files changed, 103 insertions, 18 deletions
diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index 6e81888c6222..3ec2358f8692 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -12,18 +12,24 @@
#include <linux/device.h>
#include <linux/pm.h>
+#include <linux/jiffies.h>
+
+/* Runtime PM flag argument bits */
+#define RPM_ASYNC 0x01 /* Request is asynchronous */
+#define RPM_NOWAIT 0x02 /* Don't wait for concurrent
+ state change */
+#define RPM_GET_PUT 0x04 /* Increment/decrement the
+ usage_count */
+#define RPM_AUTO 0x08 /* Use autosuspend_delay */
+
#ifdef CONFIG_PM_RUNTIME
extern struct workqueue_struct *pm_wq;
-extern int pm_runtime_idle(struct device *dev);
-extern int pm_runtime_suspend(struct device *dev);
-extern int pm_runtime_resume(struct device *dev);
-extern int pm_request_idle(struct device *dev);
+extern int __pm_runtime_idle(struct device *dev, int rpmflags);
+extern int __pm_runtime_suspend(struct device *dev, int rpmflags);
+extern int __pm_runtime_resume(struct device *dev, int rpmflags);
extern int pm_schedule_suspend(struct device *dev, unsigned int delay);
-extern int pm_request_resume(struct device *dev);
-extern int __pm_runtime_get(struct device *dev, bool sync);
-extern int __pm_runtime_put(struct device *dev, bool sync);
extern int __pm_runtime_set_status(struct device *dev, unsigned int status);
extern int pm_runtime_barrier(struct device *dev);
extern void pm_runtime_enable(struct device *dev);
@@ -33,6 +39,10 @@ extern void pm_runtime_forbid(struct device *dev);
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_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);
static inline bool pm_children_suspended(struct device *dev)
{
@@ -70,19 +80,29 @@ static inline bool pm_runtime_suspended(struct device *dev)
return dev->power.runtime_status == RPM_SUSPENDED;
}
+static inline void pm_runtime_mark_last_busy(struct device *dev)
+{
+ ACCESS_ONCE(dev->power.last_busy) = jiffies;
+}
+
#else /* !CONFIG_PM_RUNTIME */
-static inline int pm_runtime_idle(struct device *dev) { return -ENOSYS; }
-static inline int pm_runtime_suspend(struct device *dev) { return -ENOSYS; }
-static inline int pm_runtime_resume(struct device *dev) { return 0; }
-static inline int pm_request_idle(struct device *dev) { return -ENOSYS; }
+static inline int __pm_runtime_idle(struct device *dev, int rpmflags)
+{
+ return -ENOSYS;
+}
+static inline int __pm_runtime_suspend(struct device *dev, int rpmflags)
+{
+ return -ENOSYS;
+}
+static inline int __pm_runtime_resume(struct device *dev, int rpmflags)
+{
+ return 1;
+}
static inline int pm_schedule_suspend(struct device *dev, unsigned int delay)
{
return -ENOSYS;
}
-static inline int pm_request_resume(struct device *dev) { return 0; }
-static inline int __pm_runtime_get(struct device *dev, bool sync) { return 1; }
-static inline int __pm_runtime_put(struct device *dev, bool sync) { return 0; }
static inline int __pm_runtime_set_status(struct device *dev,
unsigned int status) { return 0; }
static inline int pm_runtime_barrier(struct device *dev) { return 0; }
@@ -102,27 +122,82 @@ static inline bool pm_runtime_suspended(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_mark_last_busy(struct device *dev) {}
+static inline void __pm_runtime_use_autosuspend(struct device *dev,
+ bool use) {}
+static inline void pm_runtime_set_autosuspend_delay(struct device *dev,
+ int delay) {}
+static inline unsigned long pm_runtime_autosuspend_expiration(
+ struct device *dev) { return 0; }
#endif /* !CONFIG_PM_RUNTIME */
+static inline int pm_runtime_idle(struct device *dev)
+{
+ return __pm_runtime_idle(dev, 0);
+}
+
+static inline int pm_runtime_suspend(struct device *dev)
+{
+ return __pm_runtime_suspend(dev, 0);
+}
+
+static inline int pm_runtime_autosuspend(struct device *dev)
+{
+ return __pm_runtime_suspend(dev, RPM_AUTO);
+}
+
+static inline int pm_runtime_resume(struct device *dev)
+{
+ return __pm_runtime_resume(dev, 0);
+}
+
+static inline int pm_request_idle(struct device *dev)
+{
+ return __pm_runtime_idle(dev, RPM_ASYNC);
+}
+
+static inline int pm_request_resume(struct device *dev)
+{
+ return __pm_runtime_resume(dev, RPM_ASYNC);
+}
+
+static inline int pm_request_autosuspend(struct device *dev)
+{
+ return __pm_runtime_suspend(dev, RPM_ASYNC | RPM_AUTO);
+}
+
static inline int pm_runtime_get(struct device *dev)
{
- return __pm_runtime_get(dev, false);
+ return __pm_runtime_resume(dev, RPM_GET_PUT | RPM_ASYNC);
}
static inline int pm_runtime_get_sync(struct device *dev)
{
- return __pm_runtime_get(dev, true);
+ return __pm_runtime_resume(dev, RPM_GET_PUT);
}
static inline int pm_runtime_put(struct device *dev)
{
- return __pm_runtime_put(dev, false);
+ return __pm_runtime_idle(dev, RPM_GET_PUT | RPM_ASYNC);
+}
+
+static inline int pm_runtime_put_autosuspend(struct device *dev)
+{
+ return __pm_runtime_suspend(dev,
+ RPM_GET_PUT | RPM_ASYNC | RPM_AUTO);
}
static inline int pm_runtime_put_sync(struct device *dev)
{
- return __pm_runtime_put(dev, true);
+ return __pm_runtime_idle(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);
}
static inline int pm_runtime_set_active(struct device *dev)
@@ -140,4 +215,14 @@ static inline void pm_runtime_disable(struct device *dev)
__pm_runtime_disable(dev, true);
}
+static inline void pm_runtime_use_autosuspend(struct device *dev)
+{
+ __pm_runtime_use_autosuspend(dev, true);
+}
+
+static inline void pm_runtime_dont_use_autosuspend(struct device *dev)
+{
+ __pm_runtime_use_autosuspend(dev, false);
+}
+
#endif