Root/drivers/pinctrl/pinconf.h

1/*
2 * Internal interface between the core pin control system and the
3 * pin config portions
4 *
5 * Copyright (C) 2011 ST-Ericsson SA
6 * Written on behalf of Linaro for ST-Ericsson
7 * Based on bits of regulator core, gpio core and clk core
8 *
9 * Author: Linus Walleij <linus.walleij@linaro.org>
10 *
11 * License terms: GNU General Public License (GPL) version 2
12 */
13
14#ifdef CONFIG_PINCONF
15
16int pinconf_check_ops(struct pinctrl_dev *pctldev);
17int pinconf_validate_map(struct pinctrl_map const *map, int i);
18int pinconf_map_to_setting(struct pinctrl_map const *map,
19              struct pinctrl_setting *setting);
20void pinconf_free_setting(struct pinctrl_setting const *setting);
21int pinconf_apply_setting(struct pinctrl_setting const *setting);
22
23/*
24 * You will only be interested in these if you're using PINCONF
25 * so don't supply any stubs for these.
26 */
27int pin_config_get_for_pin(struct pinctrl_dev *pctldev, unsigned pin,
28               unsigned long *config);
29int pin_config_group_get(const char *dev_name, const char *pin_group,
30             unsigned long *config);
31
32#else
33
34static inline int pinconf_check_ops(struct pinctrl_dev *pctldev)
35{
36    return 0;
37}
38
39static inline int pinconf_validate_map(struct pinctrl_map const *map, int i)
40{
41    return 0;
42}
43
44static inline int pinconf_map_to_setting(struct pinctrl_map const *map,
45              struct pinctrl_setting *setting)
46{
47    return 0;
48}
49
50static inline void pinconf_free_setting(struct pinctrl_setting const *setting)
51{
52}
53
54static inline int pinconf_apply_setting(struct pinctrl_setting const *setting)
55{
56    return 0;
57}
58
59#endif
60
61#if defined(CONFIG_PINCONF) && defined(CONFIG_DEBUG_FS)
62
63void pinconf_show_map(struct seq_file *s, struct pinctrl_map const *map);
64void pinconf_show_setting(struct seq_file *s,
65              struct pinctrl_setting const *setting);
66void pinconf_init_device_debugfs(struct dentry *devroot,
67                 struct pinctrl_dev *pctldev);
68
69#else
70
71static inline void pinconf_show_map(struct seq_file *s,
72                    struct pinctrl_map const *map)
73{
74}
75
76static inline void pinconf_show_setting(struct seq_file *s,
77              struct pinctrl_setting const *setting)
78{
79}
80
81static inline void pinconf_init_device_debugfs(struct dentry *devroot,
82                           struct pinctrl_dev *pctldev)
83{
84}
85
86#endif
87
88/*
89 * The following functions are available if the driver uses the generic
90 * pin config.
91 */
92
93#ifdef CONFIG_GENERIC_PINCONF
94
95void pinconf_generic_dump_pin(struct pinctrl_dev *pctldev,
96                  struct seq_file *s, unsigned pin);
97
98void pinconf_generic_dump_group(struct pinctrl_dev *pctldev,
99                  struct seq_file *s, const char *gname);
100
101#else
102
103static inline void pinconf_generic_dump_pin(struct pinctrl_dev *pctldev,
104                        struct seq_file *s,
105                        unsigned pin)
106{
107    return;
108}
109
110static inline void pinconf_generic_dump_group(struct pinctrl_dev *pctldev,
111                          struct seq_file *s,
112                          const char *gname)
113{
114    return;
115}
116
117#endif
118

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