forked from analogdevicesinc/linux
-
Notifications
You must be signed in to change notification settings - Fork 3
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
bus: arm-ccn: fix hrtimer registration
The CCN PMU driver has a single hrtimer, used to simulate a periodic interrupt on systems where the overflow interrupt is not possible to use. The hrtimer is started when any event is started, and cancelled when any event is stopped. Thus, stopping a single event is sufficient to disable to hrtimer, and overflows (of other events) may be lost. To avoid this, this patch reworks the hrtimer start/cancel to only occur when the first event is added to a PMU, and the last event removed, making use of the existing bitmap counting active events. Signed-off-by: Mark Rutland <[email protected]> Signed-off-by: Pawel Moll <[email protected]>
- Loading branch information
Showing
1 changed file
with
21 additions
and
12 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters