Commit d54cdf3f authored by MyungJoo Ham's avatar MyungJoo Ham
Browse files

PM / devfreq: comments for get_dev_status usage updated 



With the introduction of devfreq_update_stats(), governors
are not recommended to use get_dev_status() directly.

Signed-off-by: default avatarMyungJoo Ham <myungjoo.ham@samsung.com>
parent d3b7e174

include/linux/devfreq.h

+8 −1
Original line number Diff line number Diff line
@@ -65,7 +65,10 @@ struct devfreq_dev_status { 
 *			The "flags" parameter's possible values are

 *			explained above with "DEVFREQ_FLAG_*" macros.

 * @get_dev_status:	The device should provide the current performance

 *			status to devfreq, which is used by governors.

 *			status to devfreq. Governors are recommended not to

 *			use this directly. Instead, governors are recommended

 *			to use devfreq_update_stats() along with

 *			devfreq.last_status.

 * @get_cur_freq:	The device should provide the current frequency

 *			at which it is operating.

 * @exit:		An optional callback that is called when devfreq
@@ -208,6 +211,10 @@ extern void devm_devfreq_unregister_opp_notifier(struct device *dev, 
/**

 * devfreq_update_stats() - update the last_status pointer in struct devfreq

 * @df:		the devfreq instance whose status needs updating

 *

 *  Governors are recommended to use this function along with last_status,

 * which allows other entities to reuse the last_status without affecting

 * the values fetched later by governors.

 */

static inline int devfreq_update_stats(struct devfreq *df)

{