1 /*
2  *  linux/drivers/devfreq/governor_powersave.c
3  *
4  *  Copyright (C) 2011 Samsung Electronics
5  *	MyungJoo Ham <myungjoo.ham@samsung.com>
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License version 2 as
9  * published by the Free Software Foundation.
10  */
11 
12 #include <linux/devfreq.h>
13 #include "governor.h"
14 
15 static int devfreq_powersave_func(struct devfreq *df,
16 				  unsigned long *freq)
17 {
18 	/*
19 	 * target callback should be able to get ceiling value as
20 	 * said in devfreq.h
21 	 */
22 	*freq = df->min_freq;
23 	return 0;
24 }
25 
26 static int powersave_init(struct devfreq *devfreq)
27 {
28 	return update_devfreq(devfreq);
29 }
30 
31 const struct devfreq_governor devfreq_powersave = {
32 	.name = "powersave",
33 	.init = powersave_init,
34 	.get_target_freq = devfreq_powersave_func,
35 	.no_central_polling = true,
36 };
37