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PM / wakeup: Show wakeup sources stats in sysfs

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Add an ID and a device pointer to 'struct wakeup_source'. Use them to to
expose wakeup sources statistics in sysfs under
/sys/class/wakeup/wakeup<ID>/*.

Co-developed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Co-developed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Tri Vo <trong@android.com>
Tested-by: Kalesh Singh <kaleshsingh@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Tri Vo 2019-08-06 18:48:46 -07:00 • committed by Rafael J. Wysocki
commit c8377adfa7
11 changed files with 328 additions and 13 deletions
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2
kernel/time/alarmtimer.c
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@ -97,7 +97,7 @@ static int alarmtimer_rtc_add_device(struct device *dev,
if (!device_may_wakeup(rtc->dev.parent))
return -1;
__ws = wakeup_source_register("alarmtimer");
__ws = wakeup_source_register(dev, "alarmtimer");
spin_lock_irqsave(&rtcdev_lock, flags);
if (!rtcdev) {