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/*
* linux/include/linux/devfreq_cooling.h
*
* Copyright (C) 2015 Samsung Electronics Co., Ltd
* Author: Chanwoo Choi <cw00.choi@samsung.com>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* 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.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
#ifndef __DEVFREQ_COOLING_H__
#define __DEVFREQ_COOLING_H__
#include <linux/of.h>
#include <linux/thermal.h>
#include <linux/devfreq.h>
#ifdef CONFIG_DEVFREQ_THERMAL
/**
* devfreq_cooling_register - function to create cpufreq cooling device.
* @devfreq: the devfreq instance.
*/
struct thermal_cooling_device *
devfreq_cooling_register(struct devfreq *devfreq);
/**
* of_devfreq_cooling_register - create cpufreq cooling device based on DT.
* @np: a valid struct device_node to the cooling device tree node
* @devfreq: the devfreq instance.
*/
#ifdef CONFIG_THERMAL_OF
struct thermal_cooling_device *
of_devfreq_cooling_register(struct device_node *np, struct devfreq *devfreq);
#else
static inline struct thermal_cooling_device *
of_devfreq_cooling_register(struct device_node *np, struct devfreq *devfreq)
{
return ERR_PTR(-ENOSYS);
}
#endif
/**
* devfreq_cooling_unregister - function to remove cpufreq cooling device.
* @cdev: thermal cooling device pointer.
*/
void devfreq_cooling_unregister(struct thermal_cooling_device *cdev);
unsigned long devfreq_cooling_get_level(unsigned int cpu, unsigned int freq);
#else /* !CONFIG_DEVFREQ_THERMAL */
static inline struct thermal_cooling_device *
devfreq_cooling_register(struct devfreq *devfreq)
{
return ERR_PTR(-ENOSYS);
}
static inline struct thermal_cooling_device *
of_devfreq_cooling_register(struct device_node *np, struct devfreq *devfreq)
{
return ERR_PTR(-ENOSYS);
}
static inline
void devfreq_cooling_unregister(struct thermal_cooling_device *cdev)
{
return;
}
#endif /* CONFIG_DEVFREQ_THERMAL */
#endif /* __DEVFREQ_COOLING_H__ */
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