Gh0st
/
linux
mirror of https://github.com/torvalds/linux.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Documentation: PM: *_autosuspend() functions update last busy time 

Document that the *_autosuspend() variants of the Runtime PM functions
update the last busy timestamp.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patch.msgid.link/20250616061212.2286741-7-sakari.ailus@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Sakari Ailus 2025-06-16 09:12:12 +03:00 committed by Rafael J. Wysocki
parent 18c1fe53d1
commit cd4da713f9
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Documentation/power/runtime_pm.rst
View File

@ -887,7 +887,8 @@ instead of the non-autosuspend counterparts::
Drivers may also continue to use the non-autosuspend helper functions; they
will behave normally, which means sometimes taking the autosuspend delay into
account (see pm_runtime_idle).
account (see pm_runtime_idle). The autosuspend variants of the functions also
call pm_runtime_mark_last_busy().
Under some circumstances a driver or subsystem may want to prevent a device
from autosuspending immediately, even though the usage counter is zero and the