596006615b
commit 547ecd3b0229362
("drivers: thermal: cpu_cooling: Add a notifier for max level transitions")
introduced notifier for max level transitions earlier, later, thermal
drivers got refractored and removed chunk of code that was introduced
to support notifier for max level transitions. Bringing back the code
that was removed on top of refactored thermal code.
Change-Id: Ifeb3a73a074d04f88e81f1d62dc4aecb51ef3cec
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* linux/include/linux/cpu_cooling.h
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*
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* Copyright (C) 2012 Samsung Electronics Co., Ltd(http://www.samsung.com)
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* Copyright (C) 2012 Amit Daniel <amit.kachhap@linaro.org>
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*/
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#ifndef __CPU_COOLING_H__
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#define __CPU_COOLING_H__
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#include <linux/of.h>
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#include <linux/thermal.h>
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#include <linux/cpumask.h>
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struct cpufreq_policy;
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#ifdef CONFIG_CPU_THERMAL
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/**
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* cpufreq_cooling_register - function to create cpufreq cooling device.
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* @policy: cpufreq policy.
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*/
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struct thermal_cooling_device *
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cpufreq_cooling_register(struct cpufreq_policy *policy);
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/**
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* cpufreq_cooling_unregister - function to remove cpufreq cooling device.
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* @cdev: thermal cooling device pointer.
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*/
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void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev);
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#else /* !CONFIG_CPU_THERMAL */
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static inline struct thermal_cooling_device *
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cpufreq_cooling_register(struct cpufreq_policy *policy)
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{
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return ERR_PTR(-ENOSYS);
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}
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static inline
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void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev)
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{
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return;
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}
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#endif /* CONFIG_CPU_THERMAL */
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#if defined(CONFIG_THERMAL_OF) && defined(CONFIG_CPU_THERMAL)
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/**
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* of_cpufreq_cooling_register - create cpufreq cooling device based on DT.
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* @policy: cpufreq policy.
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*/
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struct thermal_cooling_device *
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of_cpufreq_cooling_register(struct cpufreq_policy *policy);
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#else
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static inline struct thermal_cooling_device *
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of_cpufreq_cooling_register(struct cpufreq_policy *policy)
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{
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return NULL;
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}
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#endif /* defined(CONFIG_THERMAL_OF) && defined(CONFIG_CPU_THERMAL) */
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#ifdef CONFIG_QTI_CPU_ISOLATE_COOLING_DEVICE
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extern void cpu_cooling_max_level_notifier_register(struct notifier_block *n);
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extern void cpu_cooling_max_level_notifier_unregister(struct notifier_block *n);
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extern const struct cpumask *cpu_cooling_get_max_level_cpumask(void);
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#else
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static inline
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void cpu_cooling_max_level_notifier_register(struct notifier_block *n)
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{
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}
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static inline
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void cpu_cooling_max_level_notifier_unregister(struct notifier_block *n)
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{
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}
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static inline const struct cpumask *cpu_cooling_get_max_level_cpumask(void)
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{
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return cpu_none_mask;
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}
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#endif /* CONFIG_QTI_CPU_ISOLATE_COOLING_DEVICE */
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#endif /* __CPU_COOLING_H__ */
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