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
15int pinconf_check_ops(struct pinctrl_dev *pctldev);
16int pinconf_validate_map(const struct pinctrl_map *map, int i);
17int pinconf_map_to_setting(const struct pinctrl_map *map,
18			  struct pinctrl_setting *setting);
19void pinconf_free_setting(const struct pinctrl_setting *setting);
20int pinconf_apply_setting(const struct pinctrl_setting *setting);
21
22int 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 */
29int pin_config_get_for_pin(struct pinctrl_dev *pctldev, unsigned pin,
30			   unsigned long *config);
31int pin_config_group_get(const char *dev_name, const char *pin_group,
32			 unsigned long *config);
33
34#else
35
36static inline int pinconf_check_ops(struct pinctrl_dev *pctldev)
37{
38	return 0;
39}
40
41static inline int pinconf_validate_map(const struct pinctrl_map *map, int i)
42{
43	return 0;
44}
45
46static inline int pinconf_map_to_setting(const struct pinctrl_map *map,
47			  struct pinctrl_setting *setting)
48{
49	return 0;
50}
51
52static inline void pinconf_free_setting(const struct pinctrl_setting *setting)
53{
54}
55
56static inline int pinconf_apply_setting(const struct pinctrl_setting *setting)
57{
58	return 0;
59}
60
61static 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
71void pinconf_show_map(struct seq_file *s, const struct pinctrl_map *map);
72void pinconf_show_setting(struct seq_file *s,
73			  const struct pinctrl_setting *setting);
74void pinconf_init_device_debugfs(struct dentry *devroot,
75				 struct pinctrl_dev *pctldev);
76
77#else
78
79static inline void pinconf_show_map(struct seq_file *s,
80				    const struct pinctrl_map *map)
81{
82}
83
84static inline void pinconf_show_setting(struct seq_file *s,
85					const struct pinctrl_setting *setting)
86{
87}
88
89static 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
103void pinconf_generic_dump_pins(struct pinctrl_dev *pctldev,
104			       struct seq_file *s, const char *gname,
105			       unsigned pin);
106
107void pinconf_generic_dump_config(struct pinctrl_dev *pctldev,
108				 struct seq_file *s, unsigned long config);
109#else
110
111static 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
118static 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)
127int 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