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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
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+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");