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8e8e69d6 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
f9df89d8 EV |
2 | /* |
3 | * linux/include/linux/clock_cooling.h | |
4 | * | |
5 | * Copyright (C) 2014 Eduardo Valentin <edubezval@gmail.com> | |
6 | * | |
7 | * Copyright (C) 2013 Texas Instruments Inc. | |
8 | * Contact: Eduardo Valentin <eduardo.valentin@ti.com> | |
9 | * | |
10 | * Highly based on cpu_cooling.c. | |
11 | * Copyright (C) 2012 Samsung Electronics Co., Ltd(http://www.samsung.com) | |
12 | * Copyright (C) 2012 Amit Daniel <amit.kachhap@linaro.org> | |
f9df89d8 EV |
13 | */ |
14 | ||
15 | #ifndef __CPU_COOLING_H__ | |
16 | #define __CPU_COOLING_H__ | |
17 | ||
18 | #include <linux/of.h> | |
19 | #include <linux/thermal.h> | |
20 | #include <linux/cpumask.h> | |
21 | ||
22 | #ifdef CONFIG_CLOCK_THERMAL | |
23 | /** | |
24 | * clock_cooling_register - function to create clock cooling device. | |
25 | * @dev: struct device pointer to the device used as clock cooling device. | |
26 | * @clock_name: string containing the clock used as cooling mechanism. | |
27 | */ | |
28 | struct thermal_cooling_device * | |
29 | clock_cooling_register(struct device *dev, const char *clock_name); | |
30 | ||
31 | /** | |
32 | * clock_cooling_unregister - function to remove clock cooling device. | |
33 | * @cdev: thermal cooling device pointer. | |
34 | */ | |
35 | void clock_cooling_unregister(struct thermal_cooling_device *cdev); | |
36 | ||
37 | unsigned long clock_cooling_get_level(struct thermal_cooling_device *cdev, | |
38 | unsigned long freq); | |
39 | #else /* !CONFIG_CLOCK_THERMAL */ | |
40 | static inline struct thermal_cooling_device * | |
41 | clock_cooling_register(struct device *dev, const char *clock_name) | |
42 | { | |
43 | return NULL; | |
44 | } | |
45 | static inline | |
46 | void clock_cooling_unregister(struct thermal_cooling_device *cdev) | |
47 | { | |
48 | } | |
49 | static inline | |
50 | unsigned long clock_cooling_get_level(struct thermal_cooling_device *cdev, | |
51 | unsigned long freq) | |
52 | { | |
53 | return THERMAL_CSTATE_INVALID; | |
54 | } | |
55 | #endif /* CONFIG_CLOCK_THERMAL */ | |
56 | ||
57 | #endif /* __CPU_COOLING_H__ */ |