forked from luck/tmp_suning_uos_patched
e4db1c7439
Since Operating Performance Points (OPP) functions are specific to device specific power management, be specific and rename opp.h to pm_opp.h Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
140 lines
3.2 KiB
C
140 lines
3.2 KiB
C
/*
|
|
* Generic OPP Interface
|
|
*
|
|
* Copyright (C) 2009-2010 Texas Instruments Incorporated.
|
|
* Nishanth Menon
|
|
* Romit Dasgupta
|
|
* Kevin Hilman
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef __LINUX_OPP_H__
|
|
#define __LINUX_OPP_H__
|
|
|
|
#include <linux/err.h>
|
|
#include <linux/cpufreq.h>
|
|
#include <linux/notifier.h>
|
|
|
|
struct dev_pm_opp;
|
|
struct device;
|
|
|
|
enum dev_pm_opp_event {
|
|
OPP_EVENT_ADD, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE,
|
|
};
|
|
|
|
#if defined(CONFIG_PM_OPP)
|
|
|
|
unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp);
|
|
|
|
unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp);
|
|
|
|
int dev_pm_opp_get_opp_count(struct device *dev);
|
|
|
|
struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
|
|
unsigned long freq,
|
|
bool available);
|
|
|
|
struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
|
|
unsigned long *freq);
|
|
|
|
struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
|
|
unsigned long *freq);
|
|
|
|
int dev_pm_opp_add(struct device *dev, unsigned long freq,
|
|
unsigned long u_volt);
|
|
|
|
int dev_pm_opp_enable(struct device *dev, unsigned long freq);
|
|
|
|
int dev_pm_opp_disable(struct device *dev, unsigned long freq);
|
|
|
|
struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev);
|
|
#else
|
|
static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int dev_pm_opp_get_opp_count(struct device *dev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
|
|
unsigned long freq, bool available)
|
|
{
|
|
return ERR_PTR(-EINVAL);
|
|
}
|
|
|
|
static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
|
|
unsigned long *freq)
|
|
{
|
|
return ERR_PTR(-EINVAL);
|
|
}
|
|
|
|
static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
|
|
unsigned long *freq)
|
|
{
|
|
return ERR_PTR(-EINVAL);
|
|
}
|
|
|
|
static inline int dev_pm_opp_add(struct device *dev, unsigned long freq,
|
|
unsigned long u_volt)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int dev_pm_opp_disable(struct device *dev, unsigned long freq)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline struct srcu_notifier_head *dev_pm_opp_get_notifier(
|
|
struct device *dev)
|
|
{
|
|
return ERR_PTR(-EINVAL);
|
|
}
|
|
#endif /* CONFIG_PM_OPP */
|
|
|
|
#if defined(CONFIG_PM_OPP) && defined(CONFIG_OF)
|
|
int of_init_opp_table(struct device *dev);
|
|
#else
|
|
static inline int of_init_opp_table(struct device *dev)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_CPU_FREQ) && defined(CONFIG_PM_OPP)
|
|
int dev_pm_opp_init_cpufreq_table(struct device *dev,
|
|
struct cpufreq_frequency_table **table);
|
|
void dev_pm_opp_free_cpufreq_table(struct device *dev,
|
|
struct cpufreq_frequency_table **table);
|
|
#else
|
|
static inline int dev_pm_opp_init_cpufreq_table(struct device *dev,
|
|
struct cpufreq_frequency_table **table)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static inline
|
|
void dev_pm_opp_free_cpufreq_table(struct device *dev,
|
|
struct cpufreq_frequency_table **table)
|
|
{
|
|
}
|
|
#endif /* CONFIG_CPU_FREQ */
|
|
|
|
#endif /* __LINUX_OPP_H__ */
|