/* SPDX-License-Identifier: GPL-2.0-only */ /* * Machine interface for the pinctrl subsystem. * * Copyright (C) 2011 ST-Ericsson SA * Written on behalf of Linaro for ST-Ericsson * Based on bits of regulator core, gpio core and clk core * * Author: Linus Walleij <[email protected]> */ #ifndef __LINUX_PINCTRL_MACHINE_H #define __LINUX_PINCTRL_MACHINE_H #include <linux/array_size.h> #include <linux/pinctrl/pinctrl-state.h> enum pinctrl_map_type { … }; /** * struct pinctrl_map_mux - mapping table content for MAP_TYPE_MUX_GROUP * @group: the name of the group whose mux function is to be configured. This * field may be left NULL, and the first applicable group for the function * will be used. * @function: the mux function to select for the group */ struct pinctrl_map_mux { … }; /** * struct pinctrl_map_configs - mapping table content for MAP_TYPE_CONFIGS_* * @group_or_pin: the name of the pin or group whose configuration parameters * are to be configured. * @configs: a pointer to an array of config parameters/values to program into * hardware. Each individual pin controller defines the format and meaning * of config parameters. * @num_configs: the number of entries in array @configs */ struct pinctrl_map_configs { … }; /** * struct pinctrl_map - boards/machines shall provide this map for devices * @dev_name: the name of the device using this specific mapping, the name * must be the same as in your struct device*. If this name is set to the * same name as the pin controllers own dev_name(), the map entry will be * hogged by the driver itself upon registration * @name: the name of this specific map entry for the particular machine. * This is the parameter passed to pinmux_lookup_state() * @type: the type of mapping table entry * @ctrl_dev_name: the name of the device controlling this specific mapping, * the name must be the same as in your struct device*. This field is not * used for PIN_MAP_TYPE_DUMMY_STATE * @data: Data specific to the mapping type */ struct pinctrl_map { … }; /* Convenience macros to create mapping table entries */ #define PIN_MAP_DUMMY_STATE(dev, state) … #define PIN_MAP_MUX_GROUP(dev, state, pinctrl, grp, func) … #define PIN_MAP_MUX_GROUP_DEFAULT(dev, pinctrl, grp, func) … #define PIN_MAP_MUX_GROUP_HOG(dev, state, grp, func) … #define PIN_MAP_MUX_GROUP_HOG_DEFAULT(dev, grp, func) … #define PIN_MAP_CONFIGS_PIN(dev, state, pinctrl, pin, cfgs) … #define PIN_MAP_CONFIGS_PIN_DEFAULT(dev, pinctrl, pin, cfgs) … #define PIN_MAP_CONFIGS_PIN_HOG(dev, state, pin, cfgs) … #define PIN_MAP_CONFIGS_PIN_HOG_DEFAULT(dev, pin, cfgs) … #define PIN_MAP_CONFIGS_GROUP(dev, state, pinctrl, grp, cfgs) … #define PIN_MAP_CONFIGS_GROUP_DEFAULT(dev, pinctrl, grp, cfgs) … #define PIN_MAP_CONFIGS_GROUP_HOG(dev, state, grp, cfgs) … #define PIN_MAP_CONFIGS_GROUP_HOG_DEFAULT(dev, grp, cfgs) … struct pinctrl_map; #ifdef CONFIG_PINCTRL extern int pinctrl_register_mappings(const struct pinctrl_map *map, unsigned int num_maps); extern void pinctrl_unregister_mappings(const struct pinctrl_map *map); extern void pinctrl_provide_dummies(void); #else static inline int pinctrl_register_mappings(const struct pinctrl_map *map, unsigned int num_maps) { return 0; } static inline void pinctrl_unregister_mappings(const struct pinctrl_map *map) { } static inline void pinctrl_provide_dummies(void) { } #endif /* !CONFIG_PINCTRL */ #endif
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