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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Internal interface between the core pin control system and the
4 * pinmux portions
5 *
6 * Copyright (C) 2011 ST-Ericsson SA
7 * Written on behalf of Linaro for ST-Ericsson
8 * Based on bits of regulator core, gpio core and clk core
9 *
10 * Author: Linus Walleij <linus.walleij@linaro.org>
11 */
12#ifdef CONFIG_PINMUX
13
14int pinmux_check_ops(struct pinctrl_dev *pctldev);
15
16int pinmux_validate_map(const struct pinctrl_map *map, int i);
17
18int pinmux_request_gpio(struct pinctrl_dev *pctldev,
19 struct pinctrl_gpio_range *range,
20 unsigned pin, unsigned gpio);
21void pinmux_free_gpio(struct pinctrl_dev *pctldev, unsigned pin,
22 struct pinctrl_gpio_range *range);
23int pinmux_gpio_direction(struct pinctrl_dev *pctldev,
24 struct pinctrl_gpio_range *range,
25 unsigned pin, bool input);
26
27int pinmux_map_to_setting(const struct pinctrl_map *map,
28 struct pinctrl_setting *setting);
29void pinmux_free_setting(const struct pinctrl_setting *setting);
30int pinmux_enable_setting(const struct pinctrl_setting *setting);
31void pinmux_disable_setting(const struct pinctrl_setting *setting);
32
33#else
34
35static inline int pinmux_check_ops(struct pinctrl_dev *pctldev)
36{
37 return 0;
38}
39
40static inline int pinmux_validate_map(const struct pinctrl_map *map, int i)
41{
42 return 0;
43}
44
45static inline int pinmux_request_gpio(struct pinctrl_dev *pctldev,
46 struct pinctrl_gpio_range *range,
47 unsigned pin, unsigned gpio)
48{
49 return 0;
50}
51
52static inline void pinmux_free_gpio(struct pinctrl_dev *pctldev,
53 unsigned pin,
54 struct pinctrl_gpio_range *range)
55{
56}
57
58static inline int pinmux_gpio_direction(struct pinctrl_dev *pctldev,
59 struct pinctrl_gpio_range *range,
60 unsigned pin, bool input)
61{
62 return 0;
63}
64
65static inline int pinmux_map_to_setting(const struct pinctrl_map *map,
66 struct pinctrl_setting *setting)
67{
68 return 0;
69}
70
71static inline void pinmux_free_setting(const struct pinctrl_setting *setting)
72{
73}
74
75static inline int pinmux_enable_setting(const struct pinctrl_setting *setting)
76{
77 return 0;
78}
79
80static inline void pinmux_disable_setting(const struct pinctrl_setting *setting)
81{
82}
83
84#endif
85
86#if defined(CONFIG_PINMUX) && defined(CONFIG_DEBUG_FS)
87
88void pinmux_show_map(struct seq_file *s, const struct pinctrl_map *map);
89void pinmux_show_setting(struct seq_file *s,
90 const struct pinctrl_setting *setting);
91void pinmux_init_device_debugfs(struct dentry *devroot,
92 struct pinctrl_dev *pctldev);
93
94#else
95
96static inline void pinmux_show_map(struct seq_file *s,
97 const struct pinctrl_map *map)
98{
99}
100
101static inline void pinmux_show_setting(struct seq_file *s,
102 const struct pinctrl_setting *setting)
103{
104}
105
106static inline void pinmux_init_device_debugfs(struct dentry *devroot,
107 struct pinctrl_dev *pctldev)
108{
109}
110
111#endif
112
113#ifdef CONFIG_GENERIC_PINMUX_FUNCTIONS
114
115/**
116 * struct function_desc - generic function descriptor
117 * @name: name of the function
118 * @group_names: array of pin group names
119 * @num_group_names: number of pin group names
120 * @data: pin controller driver specific data
121 */
122struct function_desc {
123 const char *name;
124 const char **group_names;
125 int num_group_names;
126 void *data;
127};
128
129int pinmux_generic_get_function_count(struct pinctrl_dev *pctldev);
130
131const char *
132pinmux_generic_get_function_name(struct pinctrl_dev *pctldev,
133 unsigned int selector);
134
135int pinmux_generic_get_function_groups(struct pinctrl_dev *pctldev,
136 unsigned int selector,
137 const char * const **groups,
138 unsigned * const num_groups);
139
140struct function_desc *pinmux_generic_get_function(struct pinctrl_dev *pctldev,
141 unsigned int selector);
142
143int pinmux_generic_add_function(struct pinctrl_dev *pctldev,
144 const char *name,
145 const char **groups,
146 unsigned const num_groups,
147 void *data);
148
149int pinmux_generic_remove_function(struct pinctrl_dev *pctldev,
150 unsigned int selector);
151
152void pinmux_generic_free_functions(struct pinctrl_dev *pctldev);
153
154#else
155
156static inline void pinmux_generic_free_functions(struct pinctrl_dev *pctldev)
157{
158}
159
160#endif /* CONFIG_GENERIC_PINMUX_FUNCTIONS */