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 15 int pinconf_check_ops(struct pinctrl_dev *pctldev); 16 int pinconf_validate_map(const struct pinctrl_map *map, int i); 17 int pinconf_map_to_setting(const struct pinctrl_map *map, 18 struct pinctrl_setting *setting); 19 void pinconf_free_setting(const struct pinctrl_setting *setting); 20 int pinconf_apply_setting(const struct pinctrl_setting *setting); 21 22 int 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 */ 29 int pin_config_get_for_pin(struct pinctrl_dev *pctldev, unsigned pin, 30 unsigned long *config); 31 int pin_config_group_get(const char *dev_name, const char *pin_group, 32 unsigned long *config); 33 34 #else 35 36 static inline int pinconf_check_ops(struct pinctrl_dev *pctldev) 37 { 38 return 0; 39 } 40 41 static inline int pinconf_validate_map(const struct pinctrl_map *map, int i) 42 { 43 return 0; 44 } 45 46 static inline int pinconf_map_to_setting(const struct pinctrl_map *map, 47 struct pinctrl_setting *setting) 48 { 49 return 0; 50 } 51 52 static inline void pinconf_free_setting(const struct pinctrl_setting *setting) 53 { 54 } 55 56 static inline int pinconf_apply_setting(const struct pinctrl_setting *setting) 57 { 58 return 0; 59 } 60 61 static 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 71 void pinconf_show_map(struct seq_file *s, const struct pinctrl_map *map); 72 void pinconf_show_setting(struct seq_file *s, 73 const struct pinctrl_setting *setting); 74 void pinconf_init_device_debugfs(struct dentry *devroot, 75 struct pinctrl_dev *pctldev); 76 77 #else 78 79 static inline void pinconf_show_map(struct seq_file *s, 80 const struct pinctrl_map *map) 81 { 82 } 83 84 static inline void pinconf_show_setting(struct seq_file *s, 85 const struct pinctrl_setting *setting) 86 { 87 } 88 89 static 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) 102 103 void pinconf_generic_dump_pins(struct pinctrl_dev *pctldev, 104 struct seq_file *s, const char *gname, 105 unsigned pin); 106 107 void pinconf_generic_dump_config(struct pinctrl_dev *pctldev, 108 struct seq_file *s, unsigned long config); 109 #else 110 111 static 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 } 117 118 static 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) 127 int 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