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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - include/linux/pinctrl/consumer.h
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
);
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
);
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 */