pinconf.h (3407B)
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 15int pinconf_check_ops(struct pinctrl_dev *pctldev); 16int pinconf_validate_map(const struct pinctrl_map *map, int i); 17int pinconf_map_to_setting(const struct pinctrl_map *map, 18 struct pinctrl_setting *setting); 19void pinconf_free_setting(const struct pinctrl_setting *setting); 20int pinconf_apply_setting(const struct pinctrl_setting *setting); 21 22int 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 */ 29int pin_config_get_for_pin(struct pinctrl_dev *pctldev, unsigned pin, 30 unsigned long *config); 31int pin_config_group_get(const char *dev_name, const char *pin_group, 32 unsigned long *config); 33 34#else 35 36static inline int pinconf_check_ops(struct pinctrl_dev *pctldev) 37{ 38 return 0; 39} 40 41static inline int pinconf_validate_map(const struct pinctrl_map *map, int i) 42{ 43 return 0; 44} 45 46static inline int pinconf_map_to_setting(const struct pinctrl_map *map, 47 struct pinctrl_setting *setting) 48{ 49 return 0; 50} 51 52static inline void pinconf_free_setting(const struct pinctrl_setting *setting) 53{ 54} 55 56static inline int pinconf_apply_setting(const struct pinctrl_setting *setting) 57{ 58 return 0; 59} 60 61static 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 71void pinconf_show_map(struct seq_file *s, const struct pinctrl_map *map); 72void pinconf_show_setting(struct seq_file *s, 73 const struct pinctrl_setting *setting); 74void pinconf_init_device_debugfs(struct dentry *devroot, 75 struct pinctrl_dev *pctldev); 76 77#else 78 79static inline void pinconf_show_map(struct seq_file *s, 80 const struct pinctrl_map *map) 81{ 82} 83 84static inline void pinconf_show_setting(struct seq_file *s, 85 const struct pinctrl_setting *setting) 86{ 87} 88 89static 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 103void pinconf_generic_dump_pins(struct pinctrl_dev *pctldev, 104 struct seq_file *s, const char *gname, 105 unsigned pin); 106 107void pinconf_generic_dump_config(struct pinctrl_dev *pctldev, 108 struct seq_file *s, unsigned long config); 109#else 110 111static 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 118static 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) 127int pinconf_generic_parse_dt_config(struct device_node *np, 128 struct pinctrl_dev *pctldev, 129 unsigned long **configs, 130 unsigned int *nconfigs); 131#endif