1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Internal interface between the core pin control system and the
* pinmux portions
*
* Copyright (C) 2011 ST-Ericsson SA
* Written on behalf of Linaro for ST-Ericsson
* Based on bits of regulator core, gpio core and clk core
*
* Author: Linus Walleij <linus.walleij@linaro.org>
*/
#include <linux/types.h>
struct dentry;
struct seq_file;
struct pinctrl_dev;
struct pinctrl_gpio_range;
struct pinctrl_map;
struct pinctrl_setting;
#ifdef CONFIG_PINMUX
int pinmux_check_ops(struct pinctrl_dev *pctldev);
int pinmux_validate_map(const struct pinctrl_map *map, int i);
bool pinmux_can_be_used_for_gpio(struct pinctrl_dev *pctldev, unsigned pin);
int pinmux_request_gpio(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned pin, unsigned gpio);
void pinmux_free_gpio(struct pinctrl_dev *pctldev, unsigned pin,
struct pinctrl_gpio_range *range);
int pinmux_gpio_direction(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned pin, bool input);
int pinmux_map_to_setting(const struct pinctrl_map *map,
struct pinctrl_setting *setting);
void pinmux_free_setting(const struct pinctrl_setting *setting);
int pinmux_enable_setting(const struct pinctrl_setting *setting);
void pinmux_disable_setting(const struct pinctrl_setting *setting);
#else
static inline int pinmux_check_ops(struct pinctrl_dev *pctldev)
{
return 0;
}
static inline int pinmux_validate_map(const struct pinctrl_map *map, int i)
{
return 0;
}
static inline bool pinmux_can_be_used_for_gpio(struct pinctrl_dev *pctldev,
unsigned pin)
{
return true;
}
static inline int pinmux_request_gpio(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned pin, unsigned gpio)
{
return 0;
}
static inline void pinmux_free_gpio(struct pinctrl_dev *pctldev,
unsigned pin,
struct pinctrl_gpio_range *range)
{
}
static inline int pinmux_gpio_direction(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned pin, bool input)
{
return 0;
}
static inline int pinmux_map_to_setting(const struct pinctrl_map *map,
struct pinctrl_setting *setting)
{
return 0;
}
static inline void pinmux_free_setting(const struct pinctrl_setting *setting)
{
}
static inline int pinmux_enable_setting(const struct pinctrl_setting *setting)
{
return 0;
}
static inline void pinmux_disable_setting(const struct pinctrl_setting *setting)
{
}
#endif
#if defined(CONFIG_PINMUX) && defined(CONFIG_DEBUG_FS)
void pinmux_show_map(struct seq_file *s, const struct pinctrl_map *map);
void pinmux_show_setting(struct seq_file *s,
const struct pinctrl_setting *setting);
void pinmux_init_device_debugfs(struct dentry *devroot,
struct pinctrl_dev *pctldev);
#else
static inline void pinmux_show_map(struct seq_file *s,
const struct pinctrl_map *map)
{
}
static inline void pinmux_show_setting(struct seq_file *s,
const struct pinctrl_setting *setting)
{
}
static inline void pinmux_init_device_debugfs(struct dentry *devroot,
struct pinctrl_dev *pctldev)
{
}
#endif
#ifdef CONFIG_GENERIC_PINMUX_FUNCTIONS
/**
* struct function_desc - generic function descriptor
* @name: name of the function
* @group_names: array of pin group names
* @num_group_names: number of pin group names
* @data: pin controller driver specific data
*/
struct function_desc {
const char *name;
const char * const *group_names;
int num_group_names;
void *data;
};
int pinmux_generic_get_function_count(struct pinctrl_dev *pctldev);
const char *
pinmux_generic_get_function_name(struct pinctrl_dev *pctldev,
unsigned int selector);
int pinmux_generic_get_function_groups(struct pinctrl_dev *pctldev,
unsigned int selector,
const char * const **groups,
unsigned * const num_groups);
struct function_desc *pinmux_generic_get_function(struct pinctrl_dev *pctldev,
unsigned int selector);
int pinmux_generic_add_function(struct pinctrl_dev *pctldev,
const char *name,
const char * const *groups,
unsigned const num_groups,
void *data);
int pinmux_generic_remove_function(struct pinctrl_dev *pctldev,
unsigned int selector);
void pinmux_generic_free_functions(struct pinctrl_dev *pctldev);
#else
static inline void pinmux_generic_free_functions(struct pinctrl_dev *pctldev)
{
}
#endif /* CONFIG_GENERIC_PINMUX_FUNCTIONS */
|
