1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * linux/include/linux/cpu_cooling.h |
4 | * |
5 | * Copyright (C) 2012 Samsung Electronics Co., Ltd(http://www.samsung.com) |
6 | * Copyright (C) 2012 Amit Daniel <amit.kachhap@linaro.org> |
7 | * |
8 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
9 | * |
10 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
11 | */ |
12 | |
13 | #ifndef __CPU_COOLING_H__ |
14 | #define __CPU_COOLING_H__ |
15 | |
16 | #include <linux/of.h> |
17 | #include <linux/thermal.h> |
18 | #include <linux/cpumask.h> |
19 | |
20 | struct cpufreq_policy; |
21 | |
22 | #ifdef CONFIG_CPU_FREQ_THERMAL |
23 | /** |
24 | * cpufreq_cooling_register - function to create cpufreq cooling device. |
25 | * @policy: cpufreq policy. |
26 | */ |
27 | struct thermal_cooling_device * |
28 | cpufreq_cooling_register(struct cpufreq_policy *policy); |
29 | |
30 | /** |
31 | * cpufreq_cooling_unregister - function to remove cpufreq cooling device. |
32 | * @cdev: thermal cooling device pointer. |
33 | */ |
34 | void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev); |
35 | |
36 | /** |
37 | * of_cpufreq_cooling_register - create cpufreq cooling device based on DT. |
38 | * @policy: cpufreq policy. |
39 | */ |
40 | struct thermal_cooling_device * |
41 | of_cpufreq_cooling_register(struct cpufreq_policy *policy); |
42 | |
43 | #else /* !CONFIG_CPU_FREQ_THERMAL */ |
44 | static inline struct thermal_cooling_device * |
45 | cpufreq_cooling_register(struct cpufreq_policy *policy) |
46 | { |
47 | return ERR_PTR(-ENOSYS); |
48 | } |
49 | |
50 | static inline |
51 | void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev) |
52 | { |
53 | return; |
54 | } |
55 | |
56 | static inline struct thermal_cooling_device * |
57 | of_cpufreq_cooling_register(struct cpufreq_policy *policy) |
58 | { |
59 | return NULL; |
60 | } |
61 | #endif /* CONFIG_CPU_FREQ_THERMAL */ |
62 | |
63 | struct cpuidle_driver; |
64 | |
65 | #ifdef CONFIG_CPU_IDLE_THERMAL |
66 | void cpuidle_cooling_register(struct cpuidle_driver *drv); |
67 | #else /* CONFIG_CPU_IDLE_THERMAL */ |
68 | static inline void cpuidle_cooling_register(struct cpuidle_driver *drv) |
69 | { |
70 | } |
71 | #endif /* CONFIG_CPU_IDLE_THERMAL */ |
72 | |
73 | #endif /* __CPU_COOLING_H__ */ |
74 | |