Merge tag 'fixes-for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm...
[deliverable/linux.git] / include / linux / cpu_cooling.h
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1/*
2 * linux/include/linux/cpu_cooling.h
3 *
4 * Copyright (C) 2012 Samsung Electronics Co., Ltd(http://www.samsung.com)
5 * Copyright (C) 2012 Amit Daniel <amit.kachhap@linaro.org>
6 *
7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; version 2 of the License.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
20 *
21 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
22 */
23
24#ifndef __CPU_COOLING_H__
25#define __CPU_COOLING_H__
26
27#include <linux/thermal.h>
28
29#define CPUFREQ_COOLING_START 0
30#define CPUFREQ_COOLING_STOP 1
31
32#ifdef CONFIG_CPU_THERMAL
33/**
34 * cpufreq_cooling_register - function to create cpufreq cooling device.
35 * @clip_cpus: cpumask of cpus where the frequency constraints will happen
36 */
37struct thermal_cooling_device *cpufreq_cooling_register(
38 struct cpumask *clip_cpus);
39
40/**
41 * cpufreq_cooling_unregister - function to remove cpufreq cooling device.
42 * @cdev: thermal cooling device pointer.
43 */
44void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev);
45#else /* !CONFIG_CPU_THERMAL */
46static inline struct thermal_cooling_device *cpufreq_cooling_register(
47 struct cpumask *clip_cpus)
48{
49 return NULL;
50}
51static inline void cpufreq_cooling_unregister(
52 struct thermal_cooling_device *cdev)
53{
54 return;
55}
56#endif /* CONFIG_CPU_THERMAL */
57
58#endif /* __CPU_COOLING_H__ */
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