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