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Subject[PATCH v2 2/2] drivers: devfreq: add tracing for scheduling work
Date
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.luba@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
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