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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
parent 2434aea58e
commit c8377adfa7
11 changed files with 328 additions and 13 deletions
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2
kernel/power/autosleep.c
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@@ -116,7 +116,7 @@ int pm_autosleep_set_state(suspend_state_t state)
int __init pm_autosleep_init(void)
{
autosleep_ws = wakeup_source_register("autosleep");
autosleep_ws = wakeup_source_register(NULL, "autosleep");
if (!autosleep_ws)
return -ENOMEM;

2
kernel/power/wakelock.c
View File

@@ -188,7 +188,7 @@ static struct wakelock *wakelock_lookup_add(const char *name, size_t len,
return ERR_PTR(-ENOMEM);
}
wl->ws = wakeup_source_register(wl->name);
wl->ws = wakeup_source_register(NULL, wl->name);
if (!wl->ws) {
kfree(wl->name);
kfree(wl);

2
kernel/time/alarmtimer.c
View File

@@ -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) {