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Commit 39688ce6 authored by Rajagopal Venkat's avatar Rajagopal Venkat Committed by MyungJoo Ham
Browse files

PM / devfreq: account suspend/resume for stats 



devfreq stats is not taking device suspend and resume into
account. Fix it.

Signed-off-by: default avatarRajagopal Venkat <rajagopal.venkat@linaro.org>
Acked-by: default avatarMyungJoo Ham <myungjoo.ham@samsung.com>
parent 6ccce699

drivers/devfreq/devfreq.c

+12 −3
Original line number Original line Diff line number Diff line
@@ -271,6 +271,7 @@ void devfreq_monitor_suspend(struct devfreq *devfreq) 
		return;

		return;

	}

	}





	devfreq_update_status(devfreq, devfreq->previous_freq);

	devfreq->stop_polling = true;

	devfreq->stop_polling = true;

	mutex_unlock(&devfreq->lock);

	mutex_unlock(&devfreq->lock);

	cancel_delayed_work_sync(&devfreq->work);

	cancel_delayed_work_sync(&devfreq->work);
@@ -287,6 +288,8 @@ EXPORT_SYMBOL(devfreq_monitor_suspend); 
 */

 */

void devfreq_monitor_resume(struct devfreq *devfreq)

void devfreq_monitor_resume(struct devfreq *devfreq)

{

{

	unsigned long freq;



	mutex_lock(&devfreq->lock);

	mutex_lock(&devfreq->lock);

	if (!devfreq->stop_polling)

	if (!devfreq->stop_polling)

		goto out;

		goto out;
@@ -295,8 +298,14 @@ void devfreq_monitor_resume(struct devfreq *devfreq) 
			devfreq->profile->polling_ms)

			devfreq->profile->polling_ms)

		queue_delayed_work(devfreq_wq, &devfreq->work,

		queue_delayed_work(devfreq_wq, &devfreq->work,

			msecs_to_jiffies(devfreq->profile->polling_ms));

			msecs_to_jiffies(devfreq->profile->polling_ms));



	devfreq->last_stat_updated = jiffies;

	devfreq->stop_polling = false;

	devfreq->stop_polling = false;





	if (devfreq->profile->get_cur_freq &&

		!devfreq->profile->get_cur_freq(devfreq->dev.parent, &freq))

		devfreq->previous_freq = freq;



out:

out:

	mutex_unlock(&devfreq->lock);

	mutex_unlock(&devfreq->lock);

}

}
@@ -905,11 +914,11 @@ static ssize_t show_trans_table(struct device *dev, struct device_attribute *att 
{

{

	struct devfreq *devfreq = to_devfreq(dev);

	struct devfreq *devfreq = to_devfreq(dev);

	ssize_t len;

	ssize_t len;

	int i, j, err;

	int i, j;

	unsigned int max_state = devfreq->profile->max_state;

	unsigned int max_state = devfreq->profile->max_state;





	err = devfreq_update_status(devfreq, devfreq->previous_freq);

	if (!devfreq->stop_polling &&

	if (err)

			devfreq_update_status(devfreq, devfreq->previous_freq))

		return 0;

		return 0;





	len = sprintf(buf, "   From  :   To\n");

	len = sprintf(buf, "   From  :   To\n");