1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * Internal interface between the core pin control system and the |
4 | * pin config 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 | |
13 | #include <linux/errno.h> |
14 | |
15 | struct dentry; |
16 | struct device_node; |
17 | struct seq_file; |
18 | |
19 | struct pinctrl_dev; |
20 | struct pinctrl_map; |
21 | struct pinctrl_setting; |
22 | |
23 | #ifdef CONFIG_PINCONF |
24 | |
25 | int pinconf_check_ops(struct pinctrl_dev *pctldev); |
26 | int pinconf_validate_map(const struct pinctrl_map *map, int i); |
27 | int pinconf_map_to_setting(const struct pinctrl_map *map, |
28 | struct pinctrl_setting *setting); |
29 | void pinconf_free_setting(const struct pinctrl_setting *setting); |
30 | int pinconf_apply_setting(const struct pinctrl_setting *setting); |
31 | |
32 | int pinconf_set_config(struct pinctrl_dev *pctldev, unsigned pin, |
33 | unsigned long *configs, size_t nconfigs); |
34 | |
35 | /* |
36 | * You will only be interested in these if you're using PINCONF |
37 | * so don't supply any stubs for these. |
38 | */ |
39 | int pin_config_get_for_pin(struct pinctrl_dev *pctldev, unsigned pin, |
40 | unsigned long *config); |
41 | int pin_config_group_get(const char *dev_name, const char *pin_group, |
42 | unsigned long *config); |
43 | |
44 | #else |
45 | |
46 | static inline int pinconf_check_ops(struct pinctrl_dev *pctldev) |
47 | { |
48 | return 0; |
49 | } |
50 | |
51 | static inline int pinconf_validate_map(const struct pinctrl_map *map, int i) |
52 | { |
53 | return 0; |
54 | } |
55 | |
56 | static inline int pinconf_map_to_setting(const struct pinctrl_map *map, |
57 | struct pinctrl_setting *setting) |
58 | { |
59 | return 0; |
60 | } |
61 | |
62 | static inline void pinconf_free_setting(const struct pinctrl_setting *setting) |
63 | { |
64 | } |
65 | |
66 | static inline int pinconf_apply_setting(const struct pinctrl_setting *setting) |
67 | { |
68 | return 0; |
69 | } |
70 | |
71 | static inline int pinconf_set_config(struct pinctrl_dev *pctldev, unsigned pin, |
72 | unsigned long *configs, size_t nconfigs) |
73 | { |
74 | return -ENOTSUPP; |
75 | } |
76 | |
77 | #endif |
78 | |
79 | #if defined(CONFIG_PINCONF) && defined(CONFIG_DEBUG_FS) |
80 | |
81 | void pinconf_show_map(struct seq_file *s, const struct pinctrl_map *map); |
82 | void pinconf_show_setting(struct seq_file *s, |
83 | const struct pinctrl_setting *setting); |
84 | void pinconf_init_device_debugfs(struct dentry *devroot, |
85 | struct pinctrl_dev *pctldev); |
86 | |
87 | #else |
88 | |
89 | static inline void pinconf_show_map(struct seq_file *s, |
90 | const struct pinctrl_map *map) |
91 | { |
92 | } |
93 | |
94 | static inline void pinconf_show_setting(struct seq_file *s, |
95 | const struct pinctrl_setting *setting) |
96 | { |
97 | } |
98 | |
99 | static inline void pinconf_init_device_debugfs(struct dentry *devroot, |
100 | struct pinctrl_dev *pctldev) |
101 | { |
102 | } |
103 | |
104 | #endif |
105 | |
106 | /* |
107 | * The following functions are available if the driver uses the generic |
108 | * pin config. |
109 | */ |
110 | |
111 | #if defined(CONFIG_GENERIC_PINCONF) && defined(CONFIG_DEBUG_FS) |
112 | |
113 | void pinconf_generic_dump_pins(struct pinctrl_dev *pctldev, |
114 | struct seq_file *s, const char *gname, |
115 | unsigned pin); |
116 | |
117 | void pinconf_generic_dump_config(struct pinctrl_dev *pctldev, |
118 | struct seq_file *s, unsigned long config); |
119 | #else |
120 | |
121 | static inline void pinconf_generic_dump_pins(struct pinctrl_dev *pctldev, |
122 | struct seq_file *s, |
123 | const char *gname, unsigned pin) |
124 | { |
125 | return; |
126 | } |
127 | |
128 | static inline void pinconf_generic_dump_config(struct pinctrl_dev *pctldev, |
129 | struct seq_file *s, |
130 | unsigned long config) |
131 | { |
132 | return; |
133 | } |
134 | #endif |
135 | |
136 | #if defined(CONFIG_GENERIC_PINCONF) && defined(CONFIG_OF) |
137 | int pinconf_generic_parse_dt_config(struct device_node *np, |
138 | struct pinctrl_dev *pctldev, |
139 | unsigned long **configs, |
140 | unsigned int *nconfigs); |
141 | #endif |
142 | |