1 /* 2 * Internal interface between the core pin control system and the 3 * pinmux 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 #ifdef CONFIG_PINMUX 14 15 int pinmux_check_ops(struct pinctrl_dev *pctldev); 16 17 int pinmux_validate_map(const struct pinctrl_map *map, int i); 18 19 int pinmux_request_gpio(struct pinctrl_dev *pctldev, 20 struct pinctrl_gpio_range *range, 21 unsigned pin, unsigned gpio); 22 void pinmux_free_gpio(struct pinctrl_dev *pctldev, unsigned pin, 23 struct pinctrl_gpio_range *range); 24 int pinmux_gpio_direction(struct pinctrl_dev *pctldev, 25 struct pinctrl_gpio_range *range, 26 unsigned pin, bool input); 27 28 int pinmux_map_to_setting(const struct pinctrl_map *map, 29 struct pinctrl_setting *setting); 30 void pinmux_free_setting(const struct pinctrl_setting *setting); 31 int pinmux_enable_setting(const struct pinctrl_setting *setting); 32 void pinmux_disable_setting(const struct pinctrl_setting *setting); 33 34 #else 35 36 static inline int pinmux_check_ops(struct pinctrl_dev *pctldev) 37 { 38 return 0; 39 } 40 41 static inline int pinmux_validate_map(const struct pinctrl_map *map, int i) 42 { 43 return 0; 44 } 45 46 static inline int pinmux_request_gpio(struct pinctrl_dev *pctldev, 47 struct pinctrl_gpio_range *range, 48 unsigned pin, unsigned gpio) 49 { 50 return 0; 51 } 52 53 static inline void pinmux_free_gpio(struct pinctrl_dev *pctldev, 54 unsigned pin, 55 struct pinctrl_gpio_range *range) 56 { 57 } 58 59 static inline int pinmux_gpio_direction(struct pinctrl_dev *pctldev, 60 struct pinctrl_gpio_range *range, 61 unsigned pin, bool input) 62 { 63 return 0; 64 } 65 66 static inline int pinmux_map_to_setting(const struct pinctrl_map *map, 67 struct pinctrl_setting *setting) 68 { 69 return 0; 70 } 71 72 static inline void pinmux_free_setting(const struct pinctrl_setting *setting) 73 { 74 } 75 76 static inline int pinmux_enable_setting(const struct pinctrl_setting *setting) 77 { 78 return 0; 79 } 80 81 static inline void pinmux_disable_setting(const struct pinctrl_setting *setting) 82 { 83 } 84 85 #endif 86 87 #if defined(CONFIG_PINMUX) && defined(CONFIG_DEBUG_FS) 88 89 void pinmux_show_map(struct seq_file *s, const struct pinctrl_map *map); 90 void pinmux_show_setting(struct seq_file *s, 91 const struct pinctrl_setting *setting); 92 void pinmux_init_device_debugfs(struct dentry *devroot, 93 struct pinctrl_dev *pctldev); 94 95 #else 96 97 static inline void pinmux_show_map(struct seq_file *s, 98 const struct pinctrl_map *map) 99 { 100 } 101 102 static inline void pinmux_show_setting(struct seq_file *s, 103 const struct pinctrl_setting *setting) 104 { 105 } 106 107 static inline void pinmux_init_device_debugfs(struct dentry *devroot, 108 struct pinctrl_dev *pctldev) 109 { 110 } 111 112 #endif 113 114 #ifdef CONFIG_GENERIC_PINMUX_FUNCTIONS 115 116 /** 117 * struct function_desc - generic function descriptor 118 * @name: name of the function 119 * @group_names: array of pin group names 120 * @num_group_names: number of pin group names 121 * @data: pin controller driver specific data 122 */ 123 struct function_desc { 124 const char *name; 125 const char **group_names; 126 int num_group_names; 127 void *data; 128 }; 129 130 int pinmux_generic_get_function_count(struct pinctrl_dev *pctldev); 131 132 const char * 133 pinmux_generic_get_function_name(struct pinctrl_dev *pctldev, 134 unsigned int selector); 135 136 int pinmux_generic_get_function_groups(struct pinctrl_dev *pctldev, 137 unsigned int selector, 138 const char * const **groups, 139 unsigned * const num_groups); 140 141 struct function_desc *pinmux_generic_get_function(struct pinctrl_dev *pctldev, 142 unsigned int selector); 143 144 int pinmux_generic_add_function(struct pinctrl_dev *pctldev, 145 const char *name, 146 const char **groups, 147 unsigned const num_groups, 148 void *data); 149 150 int pinmux_generic_remove_function(struct pinctrl_dev *pctldev, 151 unsigned int selector); 152 153 void pinmux_generic_free_functions(struct pinctrl_dev *pctldev); 154 155 #else 156 157 static inline void pinmux_generic_free_functions(struct pinctrl_dev *pctldev) 158 { 159 } 160 161 #endif /* CONFIG_GENERIC_PINMUX_FUNCTIONS */ 162