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);
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);
44 extern int pinctrl_pm_select_default_state(struct device *dev);
45 extern int pinctrl_pm_select_sleep_state(struct device *dev);
46 extern int pinctrl_pm_select_idle_state(struct device *dev);
48 static inline int pinctrl_pm_select_default_state(struct device *dev)
52 static inline int pinctrl_pm_select_sleep_state(struct device *dev)
56 static inline int pinctrl_pm_select_idle_state(struct device *dev)
62 #else /* !CONFIG_PINCTRL */
64 static inline int pinctrl_request_gpio(unsigned gpio)
69 static inline void pinctrl_free_gpio(unsigned gpio)
73 static inline int pinctrl_gpio_direction_input(unsigned gpio)
78 static inline int pinctrl_gpio_direction_output(unsigned gpio)
83 static inline struct pinctrl * __must_check pinctrl_get(struct device *dev)
88 static inline void pinctrl_put(struct pinctrl *p)
92 static inline struct pinctrl_state * __must_check pinctrl_lookup_state(
99 static inline int pinctrl_select_state(struct pinctrl *p,
100 struct pinctrl_state *s)
105 static inline struct pinctrl * __must_check devm_pinctrl_get(struct device *dev)
110 static inline void devm_pinctrl_put(struct pinctrl *p)
114 #endif /* CONFIG_PINCTRL */
116 static inline struct pinctrl * __must_check pinctrl_get_select(
117 struct device *dev, const char *name)
120 struct pinctrl_state *s;
123 p = pinctrl_get(dev);
127 s = pinctrl_lookup_state(p, name);
130 return ERR_PTR(PTR_ERR(s));
133 ret = pinctrl_select_state(p, s);
142 static inline struct pinctrl * __must_check pinctrl_get_select_default(
145 return pinctrl_get_select(dev, PINCTRL_STATE_DEFAULT);
148 static inline struct pinctrl * __must_check devm_pinctrl_get_select(
149 struct device *dev, const char *name)
152 struct pinctrl_state *s;
155 p = devm_pinctrl_get(dev);
159 s = pinctrl_lookup_state(p, name);
165 ret = pinctrl_select_state(p, s);
174 static inline struct pinctrl * __must_check devm_pinctrl_get_select_default(
177 return devm_pinctrl_get_select(dev, PINCTRL_STATE_DEFAULT);
180 #ifdef CONFIG_PINCONF
182 extern int pin_config_get(const char *dev_name, const char *name,
183 unsigned long *config);
184 extern int pin_config_set(const char *dev_name, const char *name,
185 unsigned long config);
186 extern int pin_config_group_get(const char *dev_name,
187 const char *pin_group,
188 unsigned long *config);
189 extern int pin_config_group_set(const char *dev_name,
190 const char *pin_group,
191 unsigned long config);
195 static inline int pin_config_get(const char *dev_name, const char *name,
196 unsigned long *config)
201 static inline int pin_config_set(const char *dev_name, const char *name,
202 unsigned long config)
207 static inline int pin_config_group_get(const char *dev_name,
208 const char *pin_group,
209 unsigned long *config)
214 static inline int pin_config_group_set(const char *dev_name,
215 const char *pin_group,
216 unsigned long config)
221 static inline int pinctrl_pm_select_default_state(struct device *dev)
226 static inline int pinctrl_pm_select_sleep_state(struct device *dev)
231 static inline int pinctrl_pm_select_idle_state(struct device *dev)
238 #endif /* __LINUX_PINCTRL_CONSUMER_H */