Commit cf451adf authored Feb 18, 2019 by Lukasz Luba Committed by MyungJoo Ham Apr 16, 2019

PM / devfreq: add tracing for scheduling work



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>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>

parent 1be0730f

drivers/devfreq/devfreq.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -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);
		}

		/**