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, 4 insertions, 0 deletions

diff --git a/include/linux/pm_wakeup.h b/include/linux/pm_wakeup.h
index 5285317a612a..569781faa504 100644
--- a/include/linux/pm_wakeup.h
+++ b/include/linux/pm_wakeup.h
@@ -34,6 +34,7 @@
  * @total_time: Total time this wakeup source has been active.
  * @max_time: Maximum time this wakeup source has been continuously active.
  * @last_time: Monotonic clock when the wakeup source's was touched last time.
+ * @prevent_sleep_time: Total time this source has been preventing autosleep.
  * @event_count: Number of signaled wakeup events.
  * @active_count: Number of times the wakeup sorce was activated.
  * @relax_count: Number of times the wakeup sorce was deactivated.
@@ -51,12 +52,15 @@ struct wakeup_source {
         ktime_t total_time;
         ktime_t max_time;
         ktime_t last_time;
+        ktime_t start_prevent_time;
+        ktime_t prevent_sleep_time;
         unsigned long           event_count;
         unsigned long           active_count;
         unsigned long           relax_count;
         unsigned long           expire_count;
         unsigned long           wakeup_count;
         bool                    active:1;
+        bool                    autosleep_enabled:1;
 };
 
 #ifdef CONFIG_PM_SLEEP