summaryrefslogtreecommitdiffstats
path: root/drivers/devfreq/governor.h
blob: fad7d63219786387e191ea4130bf5a0b7b37001b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
/*
 * 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 */