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 16 int pinconf_check_ops(struct pinctrl_dev *pctldev); 17 int pinconf_validate_map(struct pinctrl_map const *map, int i); 18 int pinconf_map_to_setting(struct pinctrl_map const *map, 19 struct pinctrl_setting *setting); 20 void pinconf_free_setting(struct pinctrl_setting const *setting); 21 int 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 */ 27 int pin_config_get_for_pin(struct pinctrl_dev *pctldev, unsigned pin, 28 unsigned long *config); 29 int pin_config_group_get(const char *dev_name, const char *pin_group, 30 unsigned long *config); 31 32 #else 33 34 static inline int pinconf_check_ops(struct pinctrl_dev *pctldev) 35 { 36 return 0; 37 } 38 39 static inline int pinconf_validate_map(struct pinctrl_map const *map, int i) 40 { 41 return 0; 42 } 43 44 static inline int pinconf_map_to_setting(struct pinctrl_map const *map, 45 struct pinctrl_setting *setting) 46 { 47 return 0; 48 } 49 50 static inline void pinconf_free_setting(struct pinctrl_setting const *setting) 51 { 52 } 53 54 static 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 63 void pinconf_show_map(struct seq_file *s, struct pinctrl_map const *map); 64 void pinconf_show_setting(struct seq_file *s, 65 struct pinctrl_setting const *setting); 66 void pinconf_init_device_debugfs(struct dentry *devroot, 67 struct pinctrl_dev *pctldev); 68 69 #else 70 71 static inline void pinconf_show_map(struct seq_file *s, 72 struct pinctrl_map const *map) 73 { 74 } 75 76 static inline void pinconf_show_setting(struct seq_file *s, 77 struct pinctrl_setting const *setting) 78 { 79 } 80 81 static 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 95 void pinconf_generic_dump_pins(struct pinctrl_dev *pctldev, 96 struct seq_file *s, const char *gname, 97 unsigned pin); 98 99 void pinconf_generic_dump_config(struct pinctrl_dev *pctldev, 100 struct seq_file *s, unsigned long config); 101 #else 102 103 static 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 } 109 110 static 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) 119 int 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