| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 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 | |
| 27 | #include <linux/of.h> |
| 28 | #include <linux/thermal.h> |
| 29 | #include <linux/cpumask.h> |
| 30 | |
| 31 | struct cpufreq_policy; |
| 32 | |
| 33 | #ifdef CONFIG_CPU_THERMAL |
| 34 | /** |
| 35 | * cpufreq_cooling_register - function to create cpufreq cooling device. |
| 36 | * @policy: cpufreq policy. |
| 37 | */ |
| 38 | struct thermal_cooling_device * |
| 39 | cpufreq_cooling_register(struct cpufreq_policy *policy); |
| 40 | |
| 41 | /** |
| 42 | * cpufreq_cooling_unregister - function to remove cpufreq cooling device. |
| 43 | * @cdev: thermal cooling device pointer. |
| 44 | */ |
| 45 | void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev); |
| 46 | |
| 47 | #else /* !CONFIG_CPU_THERMAL */ |
| 48 | static inline struct thermal_cooling_device * |
| 49 | cpufreq_cooling_register(struct cpufreq_policy *policy) |
| 50 | { |
| 51 | return ERR_PTR(-ENOSYS); |
| 52 | } |
| 53 | |
| 54 | static inline |
| 55 | void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev) |
| 56 | { |
| 57 | return; |
| 58 | } |
| 59 | #endif /* CONFIG_CPU_THERMAL */ |
| 60 | |
| 61 | #if defined(CONFIG_THERMAL_OF) && defined(CONFIG_CPU_THERMAL) |
| 62 | /** |
| 63 | * of_cpufreq_cooling_register - create cpufreq cooling device based on DT. |
| 64 | * @policy: cpufreq policy. |
| 65 | */ |
| 66 | struct thermal_cooling_device * |
| 67 | of_cpufreq_cooling_register(struct cpufreq_policy *policy); |
| 68 | #else |
| 69 | static inline struct thermal_cooling_device * |
| 70 | of_cpufreq_cooling_register(struct cpufreq_policy *policy) |
| 71 | { |
| 72 | return NULL; |
| 73 | } |
| 74 | #endif /* defined(CONFIG_THERMAL_OF) && defined(CONFIG_CPU_THERMAL) */ |
| 75 | |
| 76 | #endif /* __CPU_COOLING_H__ */ |