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| author |   Sakari Ailus <sakari.ailus@linux.intel.com> | 2025-06-16 09:12:09 +0300 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2025-06-18 21:41:08 +0200 |
| commit | e24e0630b5ba13e83f65905becde9945518efa0b (patch) | |
| tree | 66315889696233f56bdd71259644f2d5d4854320 | |
| parent | PM: runtime: Mark last busy stamp in pm_runtime_put_autosuspend() (diff) | |
| download | wireguard-linux-e24e0630b5ba13e83f65905becde9945518efa0b.tar.xz wireguard-linux-e24e0630b5ba13e83f65905becde9945518efa0b.zip | |
PM: runtime: Mark last busy stamp in pm_runtime_put_sync_autosuspend()
Set device's last busy timestamp to current time in
pm_runtime_put_sync_autosuspend().
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patch.msgid.link/20250616061212.2286741-4-sakari.ailus@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| -rw-r--r-- | Documentation/power/runtime_pm.rst | 3 | ||||
| -rw-r--r-- | include/linux/pm_runtime.h | 11 |
2 files changed, 9 insertions, 5 deletions
diff --git a/Documentation/power/runtime_pm.rst b/Documentation/power/runtime_pm.rst index e7bbdc66d64c..9c21c913f9cf 100644 --- a/Documentation/power/runtime_pm.rst +++ b/Documentation/power/runtime_pm.rst @@ -428,7 +428,8 @@ drivers/base/power/runtime.c and include/linux/pm_runtime.h: pm_runtime_suspend(dev) and return its result `int pm_runtime_put_sync_autosuspend(struct device *dev);` - - decrement the device's usage counter; if the result is 0 then run + - set the power.last_busy field to the current time and decrement the + device's usage counter; if the result is 0 then run pm_runtime_autosuspend(dev) and return its result `void pm_runtime_enable(struct device *dev);` diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h index 14ca7be96686..3a0d5f0ea471 100644 --- a/include/linux/pm_runtime.h +++ b/include/linux/pm_runtime.h @@ -651,12 +651,14 @@ static inline int pm_runtime_put_sync_suspend(struct device *dev) } /** - * pm_runtime_put_sync_autosuspend - Drop device usage counter and autosuspend if 0. + * pm_runtime_put_sync_autosuspend - Update the last access time of a device, + * drop device usage counter and autosuspend if 0. * @dev: Target device. * - * Decrement the runtime PM usage counter of @dev and if it turns out to be - * equal to 0, set up autosuspend of @dev or suspend it synchronously (depending - * on whether or not autosuspend has been enabled for it). + * Update the last access time of @dev, decrement the runtime PM usage counter + * of @dev and if it turns out to be equal to 0, set up autosuspend of @dev or + * suspend it synchronously (depending on whether or not autosuspend has been + * enabled for it). * * The runtime PM usage counter of @dev remains decremented in all cases, even * if it returns an error code. @@ -676,6 +678,7 @@ static inline int pm_runtime_put_sync_suspend(struct device *dev) */ static inline int pm_runtime_put_sync_autosuspend(struct device *dev) { + pm_runtime_mark_last_busy(dev); return __pm_runtime_suspend(dev, RPM_GET_PUT | RPM_AUTO); } |