3aa173b8db
Add devfreq_add_governor and devfreq_remove_governor which can be invoked by governors to register with devfreq. This sets up the stage to dynamically switch governors and allow governors to be dynamically loaded as well. Cc: Rajagopal Venkat <rajagopal.venkat@linaro.org> Cc: MyungJoo Ham <myungjoo.ham@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Kevin Hilman <khilman@ti.com> Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Nishanth Menon <nm@ti.com> Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
/*
|
|
* governor.h - internal header for devfreq governors.
|
|
*
|
|
* Copyright (C) 2011 Samsung Electronics
|
|
* MyungJoo Ham <myungjoo.ham@samsung.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This header is for devfreq governors in drivers/devfreq/
|
|
*/
|
|
|
|
#ifndef _GOVERNOR_H
|
|
#define _GOVERNOR_H
|
|
|
|
#include <linux/devfreq.h>
|
|
|
|
#define to_devfreq(DEV) container_of((DEV), struct devfreq, dev)
|
|
|
|
/* Devfreq events */
|
|
#define DEVFREQ_GOV_START 0x1
|
|
#define DEVFREQ_GOV_STOP 0x2
|
|
#define DEVFREQ_GOV_INTERVAL 0x3
|
|
#define DEVFREQ_GOV_SUSPEND 0x4
|
|
#define DEVFREQ_GOV_RESUME 0x5
|
|
|
|
/* 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);
|
|
extern void devfreq_monitor_resume(struct devfreq *devfreq);
|
|
extern void devfreq_interval_update(struct devfreq *devfreq,
|
|
unsigned int *delay);
|
|
|
|
extern int devfreq_add_governor(struct devfreq_governor *governor);
|
|
extern int devfreq_remove_governor(struct devfreq_governor *governor);
|
|
|
|
#endif /* _GOVERNOR_H */
|