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#if defined(CONFIG_GENERIC_PINCONF) && defined(CONFIG_DEBUG_FS) 94 95void pinconf_generic_dump_pins(struct pinctrl_dev *pctldev, 96 struct seq_file *s, const char *gname, 97 unsigned pin); 98 99void pinconf_generic_dump_config(struct pinctrl_dev *pctldev, 100 struct seq_file *s, unsigned long config); 101#else 102 103static inline void pinconf_generic_dump_pins(struct pinctrl_dev *pctldev, 104 struct seq_file *s, 105 const char *gname, unsigned pin) 106{ 107 return; 108} 109 110static inline void pinconf_generic_dump_config(struct pinctrl_dev *pctldev, 111 struct seq_file *s, 112 unsigned long config) 113{ 114 return; 115} 116#endif 117 118#if defined(CONFIG_GENERIC_PINCONF) && defined(CONFIG_OF) 119int pinconf_generic_parse_dt_config(struct device_node *np, 120 struct pinctrl_dev *pctldev, 121 unsigned long **configs, 122 unsigned int *nconfigs); 123#endif 124