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PM / devfreq: Make update_devfreq() public 

Currently update_devfreq() is only visible to devfreq governors outside
of devfreq.c. Make it public to allow drivers that adjust devfreq policies
to cause a re-evaluation of the frequency after a policy change.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
hifive-unleashed-5.1
Matthias Kaehlcke 2018-08-03 13:05:11 -07:00 committed by MyungJoo Ham
parent 6ff66e2a00
commit b596d895fa
2 changed files with 8 additions and 3 deletions
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3
drivers/devfreq/governor.h
View File

@ -57,9 +57,6 @@ struct devfreq_governor {
unsigned int event, void *data);
};
/* Caution: devfreq->lock must be locked before calling update_devfreq */
extern int update_devfreq(struct devfreq *devfreq);
extern void devfreq_monitor_start(struct devfreq *devfreq);
extern void devfreq_monitor_stop(struct devfreq *devfreq);
extern void devfreq_monitor_suspend(struct devfreq *devfreq);

8
include/linux/devfreq.h
View File

@ -198,6 +198,14 @@ extern void devm_devfreq_remove_device(struct device *dev,
extern int devfreq_suspend_device(struct devfreq *devfreq);
extern int devfreq_resume_device(struct devfreq *devfreq);
/**
* update_devfreq() - Reevaluate the device and configure frequency
* @devfreq: the devfreq device
*
* Note: devfreq->lock must be held
*/
extern int update_devfreq(struct devfreq *devfreq);
/* Helper functions for devfreq user device driver with OPP. */
extern struct dev_pm_opp *devfreq_recommended_opp(struct device *dev,
unsigned long *freq, u32 flags);