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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 | |
4d753aa7 VK |
31 | struct cpufreq_policy; |
32 | ||
c36cf071 JM |
33 | typedef int (*get_static_t)(cpumask_t *cpumask, int interval, |
34 | unsigned long voltage, u32 *power); | |
35 | ||
bbf7fc88 | 36 | #ifdef CONFIG_CPU_THERMAL |
02361418 ADK |
37 | /** |
38 | * cpufreq_cooling_register - function to create cpufreq cooling device. | |
4d753aa7 | 39 | * @policy: cpufreq policy. |
02361418 | 40 | */ |
d44ada51 | 41 | struct thermal_cooling_device * |
4d753aa7 | 42 | cpufreq_cooling_register(struct cpufreq_policy *policy); |
02361418 | 43 | |
c36cf071 | 44 | struct thermal_cooling_device * |
4d753aa7 | 45 | cpufreq_power_cooling_register(struct cpufreq_policy *policy, |
c36cf071 JM |
46 | u32 capacitance, get_static_t plat_static_func); |
47 | ||
39d99cff EV |
48 | /** |
49 | * of_cpufreq_cooling_register - create cpufreq cooling device based on DT. | |
50 | * @np: a valid struct device_node to the cooling device device tree node. | |
4d753aa7 | 51 | * @policy: cpufreq policy. |
39d99cff EV |
52 | */ |
53 | #ifdef CONFIG_THERMAL_OF | |
54 | struct thermal_cooling_device * | |
55 | of_cpufreq_cooling_register(struct device_node *np, | |
4d753aa7 | 56 | struct cpufreq_policy *policy); |
c36cf071 JM |
57 | |
58 | struct thermal_cooling_device * | |
59 | of_cpufreq_power_cooling_register(struct device_node *np, | |
4d753aa7 | 60 | struct cpufreq_policy *policy, |
c36cf071 JM |
61 | u32 capacitance, |
62 | get_static_t plat_static_func); | |
39d99cff EV |
63 | #else |
64 | static inline struct thermal_cooling_device * | |
65 | of_cpufreq_cooling_register(struct device_node *np, | |
4d753aa7 | 66 | struct cpufreq_policy *policy) |
39d99cff | 67 | { |
503ccc3f | 68 | return ERR_PTR(-ENOSYS); |
39d99cff | 69 | } |
c36cf071 JM |
70 | |
71 | static inline struct thermal_cooling_device * | |
72 | of_cpufreq_power_cooling_register(struct device_node *np, | |
4d753aa7 | 73 | struct cpufreq_policy *policy, |
c36cf071 JM |
74 | u32 capacitance, |
75 | get_static_t plat_static_func) | |
76 | { | |
77 | return NULL; | |
78 | } | |
39d99cff EV |
79 | #endif |
80 | ||
02361418 ADK |
81 | /** |
82 | * cpufreq_cooling_unregister - function to remove cpufreq cooling device. | |
83 | * @cdev: thermal cooling device pointer. | |
84 | */ | |
85 | void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev); | |
57df8106 | 86 | |
02361418 | 87 | #else /* !CONFIG_CPU_THERMAL */ |
d44ada51 | 88 | static inline struct thermal_cooling_device * |
4d753aa7 | 89 | cpufreq_cooling_register(struct cpufreq_policy *policy) |
02361418 | 90 | { |
503ccc3f | 91 | return ERR_PTR(-ENOSYS); |
02361418 | 92 | } |
c36cf071 | 93 | static inline struct thermal_cooling_device * |
4d753aa7 | 94 | cpufreq_power_cooling_register(struct cpufreq_policy *policy, |
c36cf071 JM |
95 | u32 capacitance, get_static_t plat_static_func) |
96 | { | |
97 | return NULL; | |
98 | } | |
99 | ||
39d99cff EV |
100 | static inline struct thermal_cooling_device * |
101 | of_cpufreq_cooling_register(struct device_node *np, | |
4d753aa7 | 102 | struct cpufreq_policy *policy) |
39d99cff | 103 | { |
503ccc3f | 104 | return ERR_PTR(-ENOSYS); |
39d99cff | 105 | } |
c36cf071 JM |
106 | |
107 | static inline struct thermal_cooling_device * | |
108 | of_cpufreq_power_cooling_register(struct device_node *np, | |
4d753aa7 | 109 | struct cpufreq_policy *policy, |
c36cf071 JM |
110 | u32 capacitance, |
111 | get_static_t plat_static_func) | |
112 | { | |
113 | return NULL; | |
114 | } | |
115 | ||
d44ada51 EV |
116 | static inline |
117 | void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev) | |
02361418 ADK |
118 | { |
119 | return; | |
120 | } | |
121 | #endif /* CONFIG_CPU_THERMAL */ | |
122 | ||
123 | #endif /* __CPU_COOLING_H__ */ |