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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2010-12-24 15:04:06 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2010-12-24 15:04:06 +0100 |
| commit | 4b31db8a16fa0d4d6a0fa42d044e7a4f4dad3641 (patch) | |
| tree | 4075d84f26fdd8e70ec62c9b541caa1ea23cebda | |
| parent | 5c1a07ab3e78ef68fc9ccf419c969e8ed88d7cb6 (diff) | |
| download | kernel_samsung_smdk4412-4b31db8a16fa0d4d6a0fa42d044e7a4f4dad3641.zip kernel_samsung_smdk4412-4b31db8a16fa0d4d6a0fa42d044e7a4f4dad3641.tar.gz kernel_samsung_smdk4412-4b31db8a16fa0d4d6a0fa42d044e7a4f4dad3641.tar.bz2 | |
PM / Runtime: Generic resume shouldn't set RPM_ACTIVE unconditionally
The __pm_generic_resume() function changes the given device's runtime
PM status to RPM_ACTIVE if its driver's callback returns 0, but it
only should do that if the rumtime PM is enabled for the device.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
| -rw-r--r-- | drivers/base/power/generic_ops.c | 2 | ||||
| -rw-r--r-- | include/linux/pm_runtime.h | 6 |
2 files changed, 7 insertions, 1 deletions
diff --git a/drivers/base/power/generic_ops.c b/drivers/base/power/generic_ops.c index 3d2c350..42f97f9 100644 --- a/drivers/base/power/generic_ops.c +++ b/drivers/base/power/generic_ops.c @@ -185,7 +185,7 @@ static int __pm_generic_resume(struct device *dev, int event) return 0; ret = callback(dev); - if (!ret) { + if (!ret && pm_runtime_enabled(dev)) { pm_runtime_disable(dev); pm_runtime_set_active(dev); pm_runtime_enable(dev); diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h index e9cc049..d34f067 100644 --- a/include/linux/pm_runtime.h +++ b/include/linux/pm_runtime.h @@ -82,6 +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; @@ -120,6 +125,7 @@ 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; } |