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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 | |
39d99cff EV |
44 | /** |
45 | * of_cpufreq_cooling_register - create cpufreq cooling device based on DT. | |
46 | * @np: a valid struct device_node to the cooling device device tree node. | |
4d753aa7 | 47 | * @policy: cpufreq policy. |
39d99cff EV |
48 | */ |
49 | #ifdef CONFIG_THERMAL_OF | |
50 | struct thermal_cooling_device * | |
51 | of_cpufreq_cooling_register(struct device_node *np, | |
4d753aa7 | 52 | struct cpufreq_policy *policy); |
c36cf071 JM |
53 | |
54 | struct thermal_cooling_device * | |
f5f263fe | 55 | of_cpufreq_power_cooling_register(struct cpufreq_policy *policy); |
39d99cff EV |
56 | #else |
57 | static inline struct thermal_cooling_device * | |
58 | of_cpufreq_cooling_register(struct device_node *np, | |
4d753aa7 | 59 | struct cpufreq_policy *policy) |
39d99cff | 60 | { |
503ccc3f | 61 | return ERR_PTR(-ENOSYS); |
39d99cff | 62 | } |
c36cf071 JM |
63 | |
64 | static inline struct thermal_cooling_device * | |
f5f263fe | 65 | of_cpufreq_power_cooling_register(struct cpufreq_policy *policy) |
c36cf071 JM |
66 | { |
67 | return NULL; | |
68 | } | |
39d99cff EV |
69 | #endif |
70 | ||
02361418 ADK |
71 | /** |
72 | * cpufreq_cooling_unregister - function to remove cpufreq cooling device. | |
73 | * @cdev: thermal cooling device pointer. | |
74 | */ | |
75 | void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev); | |
57df8106 | 76 | |
02361418 | 77 | #else /* !CONFIG_CPU_THERMAL */ |
d44ada51 | 78 | static inline struct thermal_cooling_device * |
4d753aa7 | 79 | cpufreq_cooling_register(struct cpufreq_policy *policy) |
02361418 | 80 | { |
503ccc3f | 81 | return ERR_PTR(-ENOSYS); |
02361418 | 82 | } |
c36cf071 | 83 | |
39d99cff EV |
84 | static inline struct thermal_cooling_device * |
85 | of_cpufreq_cooling_register(struct device_node *np, | |
4d753aa7 | 86 | struct cpufreq_policy *policy) |
39d99cff | 87 | { |
503ccc3f | 88 | return ERR_PTR(-ENOSYS); |
39d99cff | 89 | } |
c36cf071 JM |
90 | |
91 | static inline struct thermal_cooling_device * | |
f5f263fe | 92 | of_cpufreq_power_cooling_register(struct cpufreq_policy *policy) |
c36cf071 JM |
93 | { |
94 | return NULL; | |
95 | } | |
96 | ||
d44ada51 EV |
97 | static inline |
98 | void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev) | |
02361418 ADK |
99 | { |
100 | return; | |
101 | } | |
102 | #endif /* CONFIG_CPU_THERMAL */ | |
103 | ||
104 | #endif /* __CPU_COOLING_H__ */ |