2 * Consumer interface the pin control subsystem
4 * Copyright (C) 2012 ST-Ericsson SA
5 * Written on behalf of Linaro for ST-Ericsson
6 * Based on bits of regulator core, gpio core and clk core
8 * Author: Linus Walleij <linus.walleij@linaro.org>
10 * License terms: GNU General Public License (GPL) version 2
12 #ifndef __LINUX_PINCTRL_CONSUMER_H
13 #define __LINUX_PINCTRL_CONSUMER_H
15 #include <linux/err.h>
16 #include <linux/list.h>
17 #include <linux/seq_file.h>
18 #include "pinctrl-state.h"
20 /* This struct is private to the core and should be regarded as a cookie */
26 /* External interface to pin control */
27 extern int pinctrl_request_gpio(unsigned gpio);
28 extern void pinctrl_free_gpio(unsigned gpio);
29 extern int pinctrl_gpio_direction_input(unsigned gpio);
30 extern int pinctrl_gpio_direction_output(unsigned gpio);
32 extern struct pinctrl * __must_check pinctrl_get(struct device *dev);
33 extern void pinctrl_put(struct pinctrl *p);
34 extern struct pinctrl_state * __must_check pinctrl_lookup_state(
37 extern int pinctrl_select_state(struct pinctrl *p, struct pinctrl_state *s);
39 #else /* !CONFIG_PINCTRL */
41 static inline int pinctrl_request_gpio(unsigned gpio)
46 static inline void pinctrl_free_gpio(unsigned gpio)
50 static inline int pinctrl_gpio_direction_input(unsigned gpio)
55 static inline int pinctrl_gpio_direction_output(unsigned gpio)
60 static inline struct pinctrl * __must_check pinctrl_get(struct device *dev)
65 static inline void pinctrl_put(struct pinctrl *p)
69 static inline struct pinctrl_state * __must_check pinctrl_lookup_state(
76 static inline int pinctrl_select_state(struct pinctrl *p,
77 struct pinctrl_state *s)
82 #endif /* CONFIG_PINCTRL */
84 static inline struct pinctrl * __must_check pinctrl_get_select(
85 struct device *dev, const char *name)
88 struct pinctrl_state *s;
95 s = pinctrl_lookup_state(p, name);
98 return ERR_PTR(PTR_ERR(s));
101 ret = pinctrl_select_state(p, s);
110 static inline struct pinctrl * __must_check pinctrl_get_select_default(
113 return pinctrl_get_select(dev, PINCTRL_STATE_DEFAULT);
116 #ifdef CONFIG_PINCONF
118 extern int pin_config_get(const char *dev_name, const char *name,
119 unsigned long *config);
120 extern int pin_config_set(const char *dev_name, const char *name,
121 unsigned long config);
122 extern int pin_config_group_get(const char *dev_name,
123 const char *pin_group,
124 unsigned long *config);
125 extern int pin_config_group_set(const char *dev_name,
126 const char *pin_group,
127 unsigned long config);
131 static inline int pin_config_get(const char *dev_name, const char *name,
132 unsigned long *config)
137 static inline int pin_config_set(const char *dev_name, const char *name,
138 unsigned long config)
143 static inline int pin_config_group_get(const char *dev_name,
144 const char *pin_group,
145 unsigned long *config)
150 static inline int pin_config_group_set(const char *dev_name,
151 const char *pin_group,
152 unsigned long config)
159 #endif /* __LINUX_PINCTRL_CONSUMER_H */