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MyungJoo Hamce26c5b2011-10-02 00:19:34 +02001/*
2 * linux/drivers/devfreq/governor_performance.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>
Xiaoguang Chen0b7c3282012-04-29 22:51:31 +020013#include "governor.h"
MyungJoo Hamce26c5b2011-10-02 00:19:34 +020014
15static int devfreq_performance_func(struct devfreq *df,
16 unsigned long *freq)
17{
18 /*
19 * target callback should be able to get floor value as
20 * said in devfreq.h
21 */
MyungJoo Ham6530b9de2011-12-09 16:42:19 +090022 if (!df->max_freq)
23 *freq = UINT_MAX;
24 else
25 *freq = df->max_freq;
MyungJoo Hamce26c5b2011-10-02 00:19:34 +020026 return 0;
27}
28
Xiaoguang Chen0b7c3282012-04-29 22:51:31 +020029static int performance_init(struct devfreq *devfreq)
30{
31 return update_devfreq(devfreq);
32}
33
MyungJoo Hamce26c5b2011-10-02 00:19:34 +020034const struct devfreq_governor devfreq_performance = {
35 .name = "performance",
Xiaoguang Chen0b7c3282012-04-29 22:51:31 +020036 .init = performance_init,
MyungJoo Hamce26c5b2011-10-02 00:19:34 +020037 .get_target_freq = devfreq_performance_func,
38 .no_central_polling = true,
39};