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/*
* Consumer interface the pin control subsystem
*
* Copyright (C) 2012 ST-Ericsson SA
* Written on behalf of Linaro for ST-Ericsson
* Based on bits of regulator core, gpio core and clk core
*
* Author: Linus Walleij <linus.walleij@linaro.org>
*
* License terms: GNU General Public License (GPL) version 2
*/
#ifndef __LINUX_PINCTRL_CONSUMER_H
#define __LINUX_PINCTRL_CONSUMER_H
#include <linux/list.h>
#include <linux/seq_file.h>
#include "pinctrl.h"
/* This struct is private to the core and should be regarded as a cookie */
struct pinmux;
#ifdef CONFIG_PINMUX
/* External interface to pinmux */
extern int pinmux_request_gpio(unsigned gpio);
extern void pinmux_free_gpio(unsigned gpio);
extern int pinmux_gpio_direction_input(unsigned gpio);
extern int pinmux_gpio_direction_output(unsigned gpio);
extern struct pinmux * __must_check pinmux_get(struct device *dev, const char *name);
extern void pinmux_put(struct pinmux *pmx);
extern int pinmux_enable(struct pinmux *pmx);
extern void pinmux_disable(struct pinmux *pmx);
#else /* !CONFIG_PINMUX */
static inline int pinmux_request_gpio(unsigned gpio)
{
return 0;
}
static inline void pinmux_free_gpio(unsigned gpio)
{
}
static inline int pinmux_gpio_direction_input(unsigned gpio)
{
return 0;
}
static inline int pinmux_gpio_direction_output(unsigned gpio)
{
return 0;
}
static inline struct pinmux * __must_check pinmux_get(struct device *dev, const char *name)
{
return NULL;
}
static inline void pinmux_put(struct pinmux *pmx)
{
}
static inline int pinmux_enable(struct pinmux *pmx)
{
return 0;
}
static inline void pinmux_disable(struct pinmux *pmx)
{
}
#endif /* CONFIG_PINMUX */
#ifdef CONFIG_PINCONF
extern int pin_config_get(const char *dev_name, const char *name,
unsigned long *config);
extern int pin_config_set(const char *dev_name, const char *name,
unsigned long config);
extern int pin_config_group_get(const char *dev_name,
const char *pin_group,
unsigned long *config);
extern int pin_config_group_set(const char *dev_name,
const char *pin_group,
unsigned long config);
#else
static inline int pin_config_get(const char *dev_name, const char *name,
unsigned long *config)
{
return 0;
}
static inline int pin_config_set(const char *dev_name, const char *name,
unsigned long config)
{
return 0;
}
static inline int pin_config_group_get(const char *dev_name,
const char *pin_group,
unsigned long *config)
{
return 0;
}
static inline int pin_config_group_set(const char *dev_name,
const char *pin_group,
unsigned long config)
{
return 0;
}
#endif
#endif /* __LINUX_PINCTRL_CONSUMER_H */
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