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Commit 30582c25 authored by Chanwoo Choi's avatar Chanwoo Choi Committed by MyungJoo Ham
Browse files

PM / devfreq: Fix wrong trans_stat of passive devfreq device 



Until now, the trans_stat information of passive devfreq is not updated.
This patch updates the trans_stat information after setting the target
frequency of passive devfreq device.

Fixes: 99613311 ("PM / devfreq: Add new passive governor")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: default avatarMyungJoo Ham <myungjoo.ham@samsung.com>
parent bcf23c79

drivers/devfreq/devfreq.c

+2 −1
Original line number Diff line number Diff line
@@ -130,7 +130,7 @@ static void devfreq_set_freq_table(struct devfreq *devfreq) 
 * @devfreq:	the devfreq instance

 * @freq:	the update target frequency

 */

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

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

{

	int lev, prev_lev, ret = 0;

	unsigned long cur_time;
@@ -166,6 +166,7 @@ static int devfreq_update_status(struct devfreq *devfreq, unsigned long freq) 
	devfreq->last_stat_updated = cur_time;

	return ret;

}

EXPORT_SYMBOL(devfreq_update_status);



/**

 * find_devfreq_governor() - find devfreq governor from name

drivers/devfreq/governor.h

+2 −0
Original line number Diff line number Diff line
@@ -38,4 +38,6 @@ extern void devfreq_interval_update(struct devfreq *devfreq, 
extern int devfreq_add_governor(struct devfreq_governor *governor);

extern int devfreq_remove_governor(struct devfreq_governor *governor);



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



#endif /* _GOVERNOR_H */

drivers/devfreq/governor_passive.c

+5 −0
Original line number Diff line number Diff line
@@ -112,6 +112,11 @@ static int update_devfreq_passive(struct devfreq *devfreq, unsigned long freq) 
	if (ret < 0)

		goto out;



	if (devfreq->profile->freq_table

		&& (devfreq_update_status(devfreq, freq)))

		dev_err(&devfreq->dev,

			"Couldn't update frequency transition information.\n");



	devfreq->previous_freq = freq;



out: