Commit 18c1fe53 authored by Sakari Ailus's avatar Sakari Ailus Committed by Rafael J. Wysocki
Browse files

PM: runtime: Mark last busy stamp in pm_request_autosuspend() 



Set device's last busy timestamp to current time in
pm_request_autosuspend().

Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patch.msgid.link/20250616061212.2286741-6-sakari.ailus@linux.intel.com


Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 08071e64

Documentation/power/runtime_pm.rst

+3 −3
Original line number Diff line number Diff line
@@ -354,9 +354,9 @@ drivers/base/power/runtime.c and include/linux/pm_runtime.h: 
      success or error code if the request has not been queued up



  `int pm_request_autosuspend(struct device *dev);`

    - schedule the execution of the subsystem-level suspend callback for the

      device when the autosuspend delay has expired; if the delay has already

      expired then the work item is queued up immediately

    - Call pm_runtime_mark_last_busy() and schedule the execution of the

      subsystem-level suspend callback for the device when the autosuspend delay

      expires



  `int pm_schedule_suspend(struct device *dev, unsigned int delay);`

    - schedule the execution of the subsystem-level suspend callback for the

include/linux/pm_runtime.h

+5 −3
Original line number Diff line number Diff line
@@ -448,11 +448,12 @@ static inline int pm_request_resume(struct device *dev) 
}



/**

 * pm_request_autosuspend - Queue up autosuspend of a device.

 * pm_request_autosuspend - Update the last access time and queue up autosuspend

 * of a device.

 * @dev: Target device.

 *

 * Queue up a work item to run an equivalent pm_runtime_autosuspend() for @dev

 * asynchronously.

 * Update the last access time of a device and queue up a work item to run an

 * equivalent pm_runtime_autosuspend() for @dev asynchronously.

 *

 * Return:

 * * 0: Success.
@@ -467,6 +468,7 @@ static inline int pm_request_resume(struct device *dev) 
 */

static inline int pm_request_autosuspend(struct device *dev)

{

	pm_runtime_mark_last_busy(dev);

	return __pm_runtime_suspend(dev, RPM_ASYNC | RPM_AUTO);

}