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28a8d14c LW |
1 | /* |
2 | * Consumer interface the pin control subsystem | |
3 | * | |
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 | |
7 | * | |
8 | * Author: Linus Walleij <linus.walleij@linaro.org> | |
9 | * | |
10 | * License terms: GNU General Public License (GPL) version 2 | |
11 | */ | |
12 | #ifndef __LINUX_PINCTRL_CONSUMER_H | |
13 | #define __LINUX_PINCTRL_CONSUMER_H | |
14 | ||
15 | #include <linux/list.h> | |
16 | #include <linux/seq_file.h> | |
17 | #include "pinctrl.h" | |
18 | ||
19 | /* This struct is private to the core and should be regarded as a cookie */ | |
20 | struct pinmux; | |
21 | ||
22 | #ifdef CONFIG_PINMUX | |
23 | ||
24 | /* External interface to pinmux */ | |
25 | extern int pinmux_request_gpio(unsigned gpio); | |
26 | extern void pinmux_free_gpio(unsigned gpio); | |
27 | extern int pinmux_gpio_direction_input(unsigned gpio); | |
28 | extern int pinmux_gpio_direction_output(unsigned gpio); | |
29 | extern struct pinmux * __must_check pinmux_get(struct device *dev, const char *name); | |
30 | extern void pinmux_put(struct pinmux *pmx); | |
31 | extern int pinmux_enable(struct pinmux *pmx); | |
32 | extern void pinmux_disable(struct pinmux *pmx); | |
33 | ||
34 | #else /* !CONFIG_PINMUX */ | |
35 | ||
36 | static inline int pinmux_request_gpio(unsigned gpio) | |
37 | { | |
38 | return 0; | |
39 | } | |
40 | ||
41 | static inline void pinmux_free_gpio(unsigned gpio) | |
42 | { | |
43 | } | |
44 | ||
45 | static inline int pinmux_gpio_direction_input(unsigned gpio) | |
46 | { | |
47 | return 0; | |
48 | } | |
49 | ||
50 | static inline int pinmux_gpio_direction_output(unsigned gpio) | |
51 | { | |
52 | return 0; | |
53 | } | |
54 | ||
55 | static inline struct pinmux * __must_check pinmux_get(struct device *dev, const char *name) | |
56 | { | |
57 | return NULL; | |
58 | } | |
59 | ||
60 | static inline void pinmux_put(struct pinmux *pmx) | |
61 | { | |
62 | } | |
63 | ||
64 | static inline int pinmux_enable(struct pinmux *pmx) | |
65 | { | |
66 | return 0; | |
67 | } | |
68 | ||
69 | static inline void pinmux_disable(struct pinmux *pmx) | |
70 | { | |
71 | } | |
72 | ||
73 | #endif /* CONFIG_PINMUX */ | |
74 | ||
75 | #ifdef CONFIG_PINCONF | |
76 | ||
77 | extern int pin_config_get(const char *dev_name, const char *name, | |
78 | unsigned long *config); | |
79 | extern int pin_config_set(const char *dev_name, const char *name, | |
80 | unsigned long config); | |
81 | extern int pin_config_group_get(const char *dev_name, | |
82 | const char *pin_group, | |
83 | unsigned long *config); | |
84 | extern int pin_config_group_set(const char *dev_name, | |
85 | const char *pin_group, | |
86 | unsigned long config); | |
87 | ||
88 | #else | |
89 | ||
90 | static inline int pin_config_get(const char *dev_name, const char *name, | |
91 | unsigned long *config) | |
92 | { | |
93 | return 0; | |
94 | } | |
95 | ||
96 | static inline int pin_config_set(const char *dev_name, const char *name, | |
97 | unsigned long config) | |
98 | { | |
99 | return 0; | |
100 | } | |
101 | ||
102 | static inline int pin_config_group_get(const char *dev_name, | |
103 | const char *pin_group, | |
104 | unsigned long *config) | |
105 | { | |
106 | return 0; | |
107 | } | |
108 | ||
109 | static inline int pin_config_group_set(const char *dev_name, | |
110 | const char *pin_group, | |
111 | unsigned long config) | |
112 | { | |
113 | return 0; | |
114 | } | |
115 | ||
116 | #endif | |
117 | ||
118 | #endif /* __LINUX_PINCTRL_CONSUMER_H */ |