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 <linux/pinctrl/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);
32 extern int pinctrl_gpio_set_config(unsigned gpio, unsigned long config);
34 extern struct pinctrl * __must_check pinctrl_get(struct device *dev);
35 extern void pinctrl_put(struct pinctrl *p);
36 extern struct pinctrl_state * __must_check pinctrl_lookup_state(
39 extern int pinctrl_select_state(struct pinctrl *p, struct pinctrl_state *s);
41 extern struct pinctrl * __must_check devm_pinctrl_get(struct device *dev);
42 extern void devm_pinctrl_put(struct pinctrl *p);
45 extern int pinctrl_pm_select_default_state(struct device *dev);
46 extern int pinctrl_pm_select_sleep_state(struct device *dev);
47 extern int pinctrl_pm_select_idle_state(struct device *dev);
49 static inline int pinctrl_pm_select_default_state(struct device *dev)
53 static inline int pinctrl_pm_select_sleep_state(struct device *dev)
57 static inline int pinctrl_pm_select_idle_state(struct device *dev)
63 #else /* !CONFIG_PINCTRL */
65 static inline int pinctrl_request_gpio(unsigned gpio)
70 static inline void pinctrl_free_gpio(unsigned gpio)
74 static inline int pinctrl_gpio_direction_input(unsigned gpio)
79 static inline int pinctrl_gpio_direction_output(unsigned gpio)
84 static inline int pinctrl_gpio_set_config(unsigned gpio, unsigned long config)
89 static inline struct pinctrl * __must_check pinctrl_get(struct device *dev)
94 static inline void pinctrl_put(struct pinctrl *p)
98 static inline struct pinctrl_state * __must_check pinctrl_lookup_state(
105 static inline int pinctrl_select_state(struct pinctrl *p,
106 struct pinctrl_state *s)
111 static inline struct pinctrl * __must_check devm_pinctrl_get(struct device *dev)
116 static inline void devm_pinctrl_put(struct pinctrl *p)
120 static inline int pinctrl_pm_select_default_state(struct device *dev)
125 static inline int pinctrl_pm_select_sleep_state(struct device *dev)
130 static inline int pinctrl_pm_select_idle_state(struct device *dev)
135 #endif /* CONFIG_PINCTRL */
137 static inline struct pinctrl * __must_check pinctrl_get_select(
138 struct device *dev, const char *name)
141 struct pinctrl_state *s;
144 p = pinctrl_get(dev);
148 s = pinctrl_lookup_state(p, name);
154 ret = pinctrl_select_state(p, s);
163 static inline struct pinctrl * __must_check pinctrl_get_select_default(
166 return pinctrl_get_select(dev, PINCTRL_STATE_DEFAULT);
169 static inline struct pinctrl * __must_check devm_pinctrl_get_select(
170 struct device *dev, const char *name)
173 struct pinctrl_state *s;
176 p = devm_pinctrl_get(dev);
180 s = pinctrl_lookup_state(p, name);
186 ret = pinctrl_select_state(p, s);
195 static inline struct pinctrl * __must_check devm_pinctrl_get_select_default(
198 return devm_pinctrl_get_select(dev, PINCTRL_STATE_DEFAULT);
201 #endif /* __LINUX_PINCTRL_CONSUMER_H */