This patch add basic tracing of the devfreq workqueue and delayed work.
It aims to capture changes of the polling intervals and device state.
Signed-off-by: Lukasz Luba <l.l...@partner.samsung.com>
---
drivers/devfreq/devfreq.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 0ae3de7..660365a 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -29,6 +29,9 @@
#include <linux/of.h>
#include "governor.h"
+#define CREATE_TRACE_POINTS
+#include <trace/events/devfreq.h>
+
static struct class *devfreq_class;
/*
@@ -394,6 +397,8 @@ static void devfreq_monitor(struct work_struct *work)
queue_delayed_work(devfreq_wq, &devfreq->work,
msecs_to_jiffies(devfreq->profile->polling_ms));
mutex_unlock(&devfreq->lock);
+
+ trace_devfreq_monitor(devfreq);
}
/**
--
2.7.4
