Commit | Line | Data |
---|---|---|
02361418 ADK |
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 | ||
39d99cff | 27 | #include <linux/of.h> |
02361418 | 28 | #include <linux/thermal.h> |
198f38f7 | 29 | #include <linux/cpumask.h> |
02361418 | 30 | |
bbf7fc88 | 31 | #ifdef CONFIG_CPU_THERMAL |
02361418 ADK |
32 | /** |
33 | * cpufreq_cooling_register - function to create cpufreq cooling device. | |
34 | * @clip_cpus: cpumask of cpus where the frequency constraints will happen | |
35 | */ | |
d44ada51 EV |
36 | struct thermal_cooling_device * |
37 | cpufreq_cooling_register(const struct cpumask *clip_cpus); | |
02361418 | 38 | |
39d99cff EV |
39 | /** |
40 | * of_cpufreq_cooling_register - create cpufreq cooling device based on DT. | |
41 | * @np: a valid struct device_node to the cooling device device tree node. | |
42 | * @clip_cpus: cpumask of cpus where the frequency constraints will happen | |
43 | */ | |
44 | #ifdef CONFIG_THERMAL_OF | |
45 | struct thermal_cooling_device * | |
46 | of_cpufreq_cooling_register(struct device_node *np, | |
47 | const struct cpumask *clip_cpus); | |
48 | #else | |
49 | static inline struct thermal_cooling_device * | |
50 | of_cpufreq_cooling_register(struct device_node *np, | |
51 | const struct cpumask *clip_cpus) | |
52 | { | |
503ccc3f | 53 | return ERR_PTR(-ENOSYS); |
39d99cff EV |
54 | } |
55 | #endif | |
56 | ||
02361418 ADK |
57 | /** |
58 | * cpufreq_cooling_unregister - function to remove cpufreq cooling device. | |
59 | * @cdev: thermal cooling device pointer. | |
60 | */ | |
61 | void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev); | |
57df8106 | 62 | |
e8d39240 | 63 | unsigned long cpufreq_cooling_get_level(unsigned int cpu, unsigned int freq); |
02361418 | 64 | #else /* !CONFIG_CPU_THERMAL */ |
d44ada51 EV |
65 | static inline struct thermal_cooling_device * |
66 | cpufreq_cooling_register(const struct cpumask *clip_cpus) | |
02361418 | 67 | { |
503ccc3f | 68 | return ERR_PTR(-ENOSYS); |
02361418 | 69 | } |
39d99cff EV |
70 | static inline struct thermal_cooling_device * |
71 | of_cpufreq_cooling_register(struct device_node *np, | |
72 | const struct cpumask *clip_cpus) | |
73 | { | |
503ccc3f | 74 | return ERR_PTR(-ENOSYS); |
39d99cff | 75 | } |
d44ada51 EV |
76 | static inline |
77 | void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev) | |
02361418 ADK |
78 | { |
79 | return; | |
80 | } | |
d44ada51 | 81 | static inline |
e8d39240 | 82 | unsigned long cpufreq_cooling_get_level(unsigned int cpu, unsigned int freq) |
57df8106 ZR |
83 | { |
84 | return THERMAL_CSTATE_INVALID; | |
85 | } | |
02361418 ADK |
86 | #endif /* CONFIG_CPU_THERMAL */ |
87 | ||
88 | #endif /* __CPU_COOLING_H__ */ |