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/*
* linux/include/linux/clock_cooling.h
*
* Copyright (C) 2014 Eduardo Valentin <[email protected]>
*
* Copyright (C) 2013 Texas Instruments Inc.
* Contact: Eduardo Valentin <[email protected]>
*
* Highly based on cpu_cooling.c.
* Copyright (C) 2012 Samsung Electronics Co., Ltd(http://www.samsung.com)
* Copyright (C) 2012 Amit Daniel <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#ifndef __CPU_COOLING_H__
#define __CPU_COOLING_H__
#include <linux/of.h>
#include <linux/thermal.h>
#include <linux/cpumask.h>
#ifdef CONFIG_CLOCK_THERMAL
/**
* clock_cooling_register - function to create clock cooling device.
* @dev: struct device pointer to the device used as clock cooling device.
* @clock_name: string containing the clock used as cooling mechanism.
*/
struct thermal_cooling_device *
clock_cooling_register(struct device *dev, const char *clock_name);
/**
* clock_cooling_unregister - function to remove clock cooling device.
* @cdev: thermal cooling device pointer.
*/
void clock_cooling_unregister(struct thermal_cooling_device *cdev);
unsigned long clock_cooling_get_level(struct thermal_cooling_device *cdev,
unsigned long freq);
#else /* !CONFIG_CLOCK_THERMAL */
static inline struct thermal_cooling_device *
clock_cooling_register(struct device *dev, const char *clock_name)
{
return NULL;
}
static inline
void clock_cooling_unregister(struct thermal_cooling_device *cdev)
{
}
static inline
unsigned long clock_cooling_get_level(struct thermal_cooling_device *cdev,
unsigned long freq)
{
return THERMAL_CSTATE_INVALID;
}
#endif /* CONFIG_CLOCK_THERMAL */
#endif /* __CPU_COOLING_H__ */