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a1ce39288e
Convert #include "..." to #include <path/...> in kernel system headers. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
171 lines
5.0 KiB
C
171 lines
5.0 KiB
C
/*
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* Machine interface for the pinctrl subsystem.
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*
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* Copyright (C) 2011 ST-Ericsson SA
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* Written on behalf of Linaro for ST-Ericsson
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* Based on bits of regulator core, gpio core and clk core
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*
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* Author: Linus Walleij <linus.walleij@linaro.org>
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*
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* License terms: GNU General Public License (GPL) version 2
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*/
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#ifndef __LINUX_PINCTRL_MACHINE_H
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#define __LINUX_PINCTRL_MACHINE_H
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#include <linux/bug.h>
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#include <linux/pinctrl/pinctrl-state.h>
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enum pinctrl_map_type {
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PIN_MAP_TYPE_INVALID,
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PIN_MAP_TYPE_DUMMY_STATE,
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PIN_MAP_TYPE_MUX_GROUP,
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PIN_MAP_TYPE_CONFIGS_PIN,
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PIN_MAP_TYPE_CONFIGS_GROUP,
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};
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/**
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* struct pinctrl_map_mux - mapping table content for MAP_TYPE_MUX_GROUP
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* @group: the name of the group whose mux function is to be configured. This
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* field may be left NULL, and the first applicable group for the function
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* will be used.
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* @function: the mux function to select for the group
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*/
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struct pinctrl_map_mux {
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const char *group;
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const char *function;
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};
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/**
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* struct pinctrl_map_configs - mapping table content for MAP_TYPE_CONFIGS_*
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* @group_or_pin: the name of the pin or group whose configuration parameters
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* are to be configured.
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* @configs: a pointer to an array of config parameters/values to program into
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* hardware. Each individual pin controller defines the format and meaning
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* of config parameters.
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* @num_configs: the number of entries in array @configs
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*/
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struct pinctrl_map_configs {
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const char *group_or_pin;
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unsigned long *configs;
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unsigned num_configs;
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};
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/**
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* struct pinctrl_map - boards/machines shall provide this map for devices
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* @dev_name: the name of the device using this specific mapping, the name
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* must be the same as in your struct device*. If this name is set to the
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* same name as the pin controllers own dev_name(), the map entry will be
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* hogged by the driver itself upon registration
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* @name: the name of this specific map entry for the particular machine.
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* This is the parameter passed to pinmux_lookup_state()
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* @type: the type of mapping table entry
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* @ctrl_dev_name: the name of the device controlling this specific mapping,
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* the name must be the same as in your struct device*. This field is not
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* used for PIN_MAP_TYPE_DUMMY_STATE
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* @data: Data specific to the mapping type
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*/
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struct pinctrl_map {
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const char *dev_name;
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const char *name;
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enum pinctrl_map_type type;
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const char *ctrl_dev_name;
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union {
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struct pinctrl_map_mux mux;
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struct pinctrl_map_configs configs;
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} data;
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};
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/* Convenience macros to create mapping table entries */
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#define PIN_MAP_DUMMY_STATE(dev, state) \
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{ \
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.dev_name = dev, \
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.name = state, \
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.type = PIN_MAP_TYPE_DUMMY_STATE, \
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}
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#define PIN_MAP_MUX_GROUP(dev, state, pinctrl, grp, func) \
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{ \
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.dev_name = dev, \
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.name = state, \
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.type = PIN_MAP_TYPE_MUX_GROUP, \
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.ctrl_dev_name = pinctrl, \
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.data.mux = { \
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.group = grp, \
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.function = func, \
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}, \
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}
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#define PIN_MAP_MUX_GROUP_DEFAULT(dev, pinctrl, grp, func) \
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PIN_MAP_MUX_GROUP(dev, PINCTRL_STATE_DEFAULT, pinctrl, grp, func)
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#define PIN_MAP_MUX_GROUP_HOG(dev, state, grp, func) \
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PIN_MAP_MUX_GROUP(dev, state, dev, grp, func)
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#define PIN_MAP_MUX_GROUP_HOG_DEFAULT(dev, grp, func) \
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PIN_MAP_MUX_GROUP(dev, PINCTRL_STATE_DEFAULT, dev, grp, func)
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#define PIN_MAP_CONFIGS_PIN(dev, state, pinctrl, pin, cfgs) \
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{ \
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.dev_name = dev, \
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.name = state, \
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.type = PIN_MAP_TYPE_CONFIGS_PIN, \
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.ctrl_dev_name = pinctrl, \
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.data.configs = { \
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.group_or_pin = pin, \
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.configs = cfgs, \
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.num_configs = ARRAY_SIZE(cfgs), \
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}, \
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}
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#define PIN_MAP_CONFIGS_PIN_DEFAULT(dev, pinctrl, pin, cfgs) \
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PIN_MAP_CONFIGS_PIN(dev, PINCTRL_STATE_DEFAULT, pinctrl, pin, cfgs)
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#define PIN_MAP_CONFIGS_PIN_HOG(dev, state, pin, cfgs) \
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PIN_MAP_CONFIGS_PIN(dev, state, dev, pin, cfgs)
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#define PIN_MAP_CONFIGS_PIN_HOG_DEFAULT(dev, pin, cfgs) \
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PIN_MAP_CONFIGS_PIN(dev, PINCTRL_STATE_DEFAULT, dev, pin, cfgs)
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#define PIN_MAP_CONFIGS_GROUP(dev, state, pinctrl, grp, cfgs) \
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{ \
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.dev_name = dev, \
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.name = state, \
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.type = PIN_MAP_TYPE_CONFIGS_GROUP, \
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.ctrl_dev_name = pinctrl, \
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.data.configs = { \
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.group_or_pin = grp, \
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.configs = cfgs, \
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.num_configs = ARRAY_SIZE(cfgs), \
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}, \
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}
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#define PIN_MAP_CONFIGS_GROUP_DEFAULT(dev, pinctrl, grp, cfgs) \
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PIN_MAP_CONFIGS_GROUP(dev, PINCTRL_STATE_DEFAULT, pinctrl, grp, cfgs)
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#define PIN_MAP_CONFIGS_GROUP_HOG(dev, state, grp, cfgs) \
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PIN_MAP_CONFIGS_GROUP(dev, state, dev, grp, cfgs)
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#define PIN_MAP_CONFIGS_GROUP_HOG_DEFAULT(dev, grp, cfgs) \
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PIN_MAP_CONFIGS_GROUP(dev, PINCTRL_STATE_DEFAULT, dev, grp, cfgs)
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#ifdef CONFIG_PINCTRL
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extern int pinctrl_register_mappings(struct pinctrl_map const *map,
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unsigned num_maps);
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extern void pinctrl_provide_dummies(void);
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#else
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static inline int pinctrl_register_mappings(struct pinctrl_map const *map,
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unsigned num_maps)
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{
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return 0;
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}
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static inline void pinctrl_provide_dummies(void)
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{
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}
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#endif /* !CONFIG_PINCTRL */
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#endif
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