[deliverable/linux.git] / drivers / devfreq / governor_powersave.c

/*
 *  linux/drivers/devfreq/governor_powersave.c
 *
 *  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.
 */

#include <linux/devfreq.h>
#include "governor.h"

static int devfreq_powersave_func(struct devfreq *df,
				  unsigned long *freq)
{
	/*
	 * target callback should be able to get ceiling value as
	 * said in devfreq.h
	 */
	*freq = df->min_freq;
	return 0;
}

static int powersave_init(struct devfreq *devfreq)
{
	return update_devfreq(devfreq);
}

const struct devfreq_governor devfreq_powersave = {
	.name = "powersave",
	.init = powersave_init,
	.get_target_freq = devfreq_powersave_func,
	.no_central_polling = true,
};
Commit	Line	Data
	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	};