PM / Sleep: Add "prevent autosleep time" statistics to wakeup sources

Android uses one wakelock statistics that is only necessary for
opportunistic sleep.  Namely, the prevent_suspend_time field
accumulates the total time the given wakelock has been locked
while "automatic suspend" was enabled.  Add an analogous field,
prevent_sleep_time, to wakeup sources and make it behave in a similar
way.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/kernel/power/autosleep.c b/kernel/power/autosleep.c
index 42348e3589d3..ca304046d9e2 100644
--- a/kernel/power/autosleep.c
+++ b/kernel/power/autosleep.c
@@ -101,8 +101,12 @@ int pm_autosleep_set_state(suspend_state_t state)
 
         __pm_relax(autosleep_ws);
 
-        if (state > PM_SUSPEND_ON)
+        if (state > PM_SUSPEND_ON) {
+                pm_wakep_autosleep_enabled(true);
                 queue_up_suspend_work();
+        } else {
+                pm_wakep_autosleep_enabled(false);
+        }
 
         mutex_unlock(&autosleep_lock);
         return 0;