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 */
27 /* External interface to pin control */
28 extern int pinctrl_request_gpio(unsigned gpio);
29 extern void pinctrl_free_gpio(unsigned gpio);
30 extern int pinctrl_gpio_direction_input(unsigned gpio);
31 extern int pinctrl_gpio_direction_output(unsigned gpio);
33 extern struct pinctrl * __must_check pinctrl_get(struct device *dev);
34 extern void pinctrl_put(struct pinctrl *p);
35 extern struct pinctrl_state * __must_check pinctrl_lookup_state(
38 extern int pinctrl_select_state(struct pinctrl *p, struct pinctrl_state *s);
40 extern struct pinctrl * __must_check devm_pinctrl_get(struct device *dev);
41 extern void devm_pinctrl_put(struct pinctrl *p);
43 #else /* !CONFIG_PINCTRL */
45 static inline int pinctrl_request_gpio(unsigned gpio)
50 static inline void pinctrl_free_gpio(unsigned gpio)
54 static inline int pinctrl_gpio_direction_input(unsigned gpio)
59 static inline int pinctrl_gpio_direction_output(unsigned gpio)
64 static inline struct pinctrl * __must_check pinctrl_get(struct device *dev)
69 static inline void pinctrl_put(struct pinctrl *p)
73 static inline struct pinctrl_state * __must_check pinctrl_lookup_state(
80 static inline int pinctrl_select_state(struct pinctrl *p,
81 struct pinctrl_state *s)
86 static inline struct pinctrl * __must_check devm_pinctrl_get(struct device *dev)
91 static inline void devm_pinctrl_put(struct pinctrl *p)
95 #endif /* CONFIG_PINCTRL */
97 static inline struct pinctrl * __must_check pinctrl_get_select(
98 struct device *dev, const char *name)
101 struct pinctrl_state *s;
104 p = pinctrl_get(dev);
108 s = pinctrl_lookup_state(p, name);
111 return ERR_PTR(PTR_ERR(s));
114 ret = pinctrl_select_state(p, s);
123 static inline struct pinctrl * __must_check pinctrl_get_select_default(
126 return pinctrl_get_select(dev, PINCTRL_STATE_DEFAULT);
129 static inline struct pinctrl * __must_check devm_pinctrl_get_select(
130 struct device *dev, const char *name)
133 struct pinctrl_state *s;
136 p = devm_pinctrl_get(dev);
140 s = pinctrl_lookup_state(p, name);
143 return ERR_PTR(PTR_ERR(s));
146 ret = pinctrl_select_state(p, s);
155 static inline struct pinctrl * __must_check devm_pinctrl_get_select_default(
158 return devm_pinctrl_get_select(dev, PINCTRL_STATE_DEFAULT);
161 #ifdef CONFIG_PINCONF
163 extern int pin_config_get(const char *dev_name, const char *name,
164 unsigned long *config);
165 extern int pin_config_set(const char *dev_name, const char *name,
166 unsigned long config);
167 extern int pin_config_group_get(const char *dev_name,
168 const char *pin_group,
169 unsigned long *config);
170 extern int pin_config_group_set(const char *dev_name,
171 const char *pin_group,
172 unsigned long config);
176 static inline int pin_config_get(const char *dev_name, const char *name,
177 unsigned long *config)
182 static inline int pin_config_set(const char *dev_name, const char *name,
183 unsigned long config)
188 static inline int pin_config_group_get(const char *dev_name,
189 const char *pin_group,
190 unsigned long *config)
195 static inline int pin_config_group_set(const char *dev_name,
196 const char *pin_group,
197 unsigned long config)
204 #endif /* __LINUX_PINCTRL_CONSUMER_H */