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