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 int pinconf_set_config(struct pinctrl_dev *pctldev, unsigned pin, 24 unsigned long *configs, size_t nconfigs); 25 26 /* 27 * You will only be interested in these if you're using PINCONF 28 * so don't supply any stubs for these. 29 */ 30 int pin_config_get_for_pin(struct pinctrl_dev *pctldev, unsigned pin, 31 unsigned long *config); 32 int pin_config_group_get(const char *dev_name, const char *pin_group, 33 unsigned long *config); 34 35 #else 36 37 static inline int pinconf_check_ops(struct pinctrl_dev *pctldev) 38 { 39 return 0; 40 } 41 42 static inline int pinconf_validate_map(struct pinctrl_map const *map, int i) 43 { 44 return 0; 45 } 46 47 static inline int pinconf_map_to_setting(struct pinctrl_map const *map, 48 struct pinctrl_setting *setting) 49 { 50 return 0; 51 } 52 53 static inline void pinconf_free_setting(struct pinctrl_setting const *setting) 54 { 55 } 56 57 static inline int pinconf_apply_setting(struct pinctrl_setting const *setting) 58 { 59 return 0; 60 } 61 62 static inline int pinconf_set_config(struct pinctrl_dev *pctldev, unsigned pin, 63 unsigned long *configs, size_t nconfigs) 64 { 65 return -ENOTSUPP; 66 } 67 68 #endif 69 70 #if defined(CONFIG_PINCONF) && defined(CONFIG_DEBUG_FS) 71 72 void pinconf_show_map(struct seq_file *s, struct pinctrl_map const *map); 73 void pinconf_show_setting(struct seq_file *s, 74 struct pinctrl_setting const *setting); 75 void pinconf_init_device_debugfs(struct dentry *devroot, 76 struct pinctrl_dev *pctldev); 77 78 #else 79 80 static inline void pinconf_show_map(struct seq_file *s, 81 struct pinctrl_map const *map) 82 { 83 } 84 85 static inline void pinconf_show_setting(struct seq_file *s, 86 struct pinctrl_setting const *setting) 87 { 88 } 89 90 static inline void pinconf_init_device_debugfs(struct dentry *devroot, 91 struct pinctrl_dev *pctldev) 92 { 93 } 94 95 #endif 96 97 /* 98 * The following functions are available if the driver uses the generic 99 * pin config. 100 */ 101 102 #if defined(CONFIG_GENERIC_PINCONF) && defined(CONFIG_DEBUG_FS) 103 104 void pinconf_generic_dump_pins(struct pinctrl_dev *pctldev, 105 struct seq_file *s, const char *gname, 106 unsigned pin); 107 108 void pinconf_generic_dump_config(struct pinctrl_dev *pctldev, 109 struct seq_file *s, unsigned long config); 110 #else 111 112 static inline void pinconf_generic_dump_pins(struct pinctrl_dev *pctldev, 113 struct seq_file *s, 114 const char *gname, unsigned pin) 115 { 116 return; 117 } 118 119 static inline void pinconf_generic_dump_config(struct pinctrl_dev *pctldev, 120 struct seq_file *s, 121 unsigned long config) 122 { 123 return; 124 } 125 #endif 126 127 #if defined(CONFIG_GENERIC_PINCONF) && defined(CONFIG_OF) 128 int pinconf_generic_parse_dt_config(struct device_node *np, 129 struct pinctrl_dev *pctldev, 130 unsigned long **configs, 131 unsigned int *nconfigs); 132 #endif 133