Commit 713472e5 authored by Chanwoo Choi's avatar Chanwoo Choi
Browse files

PM / devfreq: Export devfreq_get_freq_range symbol within devfreq 



In order to get frequency range within devfreq governors,
export devfreq_get_freq_range symbol within devfreq.

Reviewed-by: default avatarMatthias Kaehlcke <mka@chromium.org>
Tested-by: default avatarChen-Yu Tsai <wenst@chromium.org>
Tested-by: default avatarJohnson Wang <johnson.wang@mediatek.com>
Signed-off-by: default avatarChanwoo Choi <cw00.choi@samsung.com>
parent 2e691421

drivers/devfreq/devfreq.c

+12 −8
Original line number Diff line number Diff line
@@ -112,14 +112,14 @@ static unsigned long find_available_max_freq(struct devfreq *devfreq) 
}



/**

 * get_freq_range() - Get the current freq range

 * devfreq_get_freq_range() - Get the current freq range

 * @devfreq:	the devfreq instance

 * @min_freq:	the min frequency

 * @max_freq:	the max frequency

 *

 * This takes into consideration all constraints.

 */

static void get_freq_range(struct devfreq *devfreq,

void devfreq_get_freq_range(struct devfreq *devfreq,

			    unsigned long *min_freq,

			    unsigned long *max_freq)

{
@@ -158,6 +158,7 @@ static void get_freq_range(struct devfreq *devfreq, 
	if (*min_freq > *max_freq)

		*min_freq = *max_freq;

}

EXPORT_SYMBOL(devfreq_get_freq_range);



/**

 * devfreq_get_freq_level() - Lookup freq_table for the frequency
@@ -418,7 +419,7 @@ int devfreq_update_target(struct devfreq *devfreq, unsigned long freq) 
	err = devfreq->governor->get_target_freq(devfreq, &freq);

	if (err)

		return err;

	get_freq_range(devfreq, &min_freq, &max_freq);

	devfreq_get_freq_range(devfreq, &min_freq, &max_freq);



	if (freq < min_freq) {

		freq = min_freq;
@@ -785,6 +786,7 @@ struct devfreq *devfreq_add_device(struct device *dev, 
{

	struct devfreq *devfreq;

	struct devfreq_governor *governor;

	unsigned long min_freq, max_freq;

	int err = 0;



	if (!dev || !profile || !governor_name) {
@@ -849,6 +851,8 @@ struct devfreq *devfreq_add_device(struct device *dev, 
		goto err_dev;

	}



	devfreq_get_freq_range(devfreq, &min_freq, &max_freq);



	devfreq->suspend_freq = dev_pm_opp_get_suspend_opp_freq(dev);

	devfreq->opp_table = dev_pm_opp_get_opp_table(dev);

	if (IS_ERR(devfreq->opp_table))
@@ -1587,7 +1591,7 @@ static ssize_t min_freq_show(struct device *dev, struct device_attribute *attr, 
	unsigned long min_freq, max_freq;



	mutex_lock(&df->lock);

	get_freq_range(df, &min_freq, &max_freq);

	devfreq_get_freq_range(df, &min_freq, &max_freq);

	mutex_unlock(&df->lock);



	return sprintf(buf, "%lu\n", min_freq);
@@ -1641,7 +1645,7 @@ static ssize_t max_freq_show(struct device *dev, struct device_attribute *attr, 
	unsigned long min_freq, max_freq;



	mutex_lock(&df->lock);

	get_freq_range(df, &min_freq, &max_freq);

	devfreq_get_freq_range(df, &min_freq, &max_freq);

	mutex_unlock(&df->lock);



	return sprintf(buf, "%lu\n", max_freq);
@@ -1955,7 +1959,7 @@ static int devfreq_summary_show(struct seq_file *s, void *data) 


		mutex_lock(&devfreq->lock);

		cur_freq = devfreq->previous_freq;

		get_freq_range(devfreq, &min_freq, &max_freq);

		devfreq_get_freq_range(devfreq, &min_freq, &max_freq);

		timer = devfreq->profile->timer;



		if (IS_SUPPORTED_ATTR(devfreq->governor->attrs, POLLING_INTERVAL))

drivers/devfreq/governor.h

+2 −0
Original line number Diff line number Diff line
@@ -89,6 +89,8 @@ int devm_devfreq_add_governor(struct device *dev, 


int devfreq_update_status(struct devfreq *devfreq, unsigned long freq);

int devfreq_update_target(struct devfreq *devfreq, unsigned long freq);

void devfreq_get_freq_range(struct devfreq *devfreq, unsigned long *min_freq,

			    unsigned long *max_freq);



static inline int devfreq_update_stats(struct devfreq *df)

{