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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Internal interface between the core pin control system and the
* pinmux portions
*
* 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 <linus.walleij@linaro.org>
*/
#include <linux/types.h>
struct dentry;
struct seq_file;
struct pinctrl_dev;
struct pinctrl_gpio_range;
struct pinctrl_map;
struct pinctrl_setting;
#ifdef CONFIG_PINMUX
int pinmux_check_ops(struct pinctrl_dev *pctldev);
int pinmux_validate_map(const struct pinctrl_map *map, int i);
bool pinmux_can_be_used_for_gpio(struct pinctrl_dev *pctldev, unsigned int pin);
int pinmux_request_gpio(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned int pin, unsigned int gpio);
void pinmux_free_gpio(struct pinctrl_dev *pctldev, unsigned int pin,
struct pinctrl_gpio_range *range);
int pinmux_gpio_direction(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned int pin, bool input);
int pinmux_map_to_setting(const struct pinctrl_map *map,
struct pinctrl_setting *setting);
void pinmux_free_setting(const struct pinctrl_setting *setting);
int pinmux_enable_setting(const struct pinctrl_setting *setting);
void pinmux_disable_setting(const struct pinctrl_setting *setting);
#else
static inline int pinmux_check_ops(struct pinctrl_dev *pctldev)
{
return 0;
}
static inline int pinmux_validate_map(const struct pinctrl_map *map, int i)
{
return 0;
}
static inline bool pinmux_can_be_used_for_gpio(struct pinctrl_dev *pctldev,
unsigned int pin)
{
return true;
}
static inline int pinmux_request_gpio(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned int pin, unsigned int gpio)
{
return 0;
}
static inline void pinmux_free_gpio(struct pinctrl_dev *pctldev,
unsigned int pin,
struct pinctrl_gpio_range *range)
{
}
static inline int pinmux_gpio_direction(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned int pin, bool input)
{
return 0;
}
static inline int pinmux_map_to_setting(const struct pinctrl_map *map,
struct pinctrl_setting *setting)
{
return 0;
}
static inline void pinmux_free_setting(const struct pinctrl_setting *setting)
{
}
static inline int pinmux_enable_setting(const struct pinctrl_setting *setting)
{
return 0;
}
static inline void pinmux_disable_setting(const struct pinctrl_setting *setting)
{
}
#endif
#if defined(CONFIG_PINMUX) && defined(CONFIG_DEBUG_FS)
void pinmux_show_map(struct seq_file *s, const struct pinctrl_map *map);
void pinmux_show_setting(struct seq_file *s,
const struct pinctrl_setting *setting);
void pinmux_init_device_debugfs(struct dentry *devroot,
struct pinctrl_dev *pctldev);
#else
static inline void pinmux_show_map(struct seq_file *s,
const struct pinctrl_map *map)
{
}
static inline void pinmux_show_setting(struct seq_file *s,
const struct pinctrl_setting *setting)
{
}
static inline void pinmux_init_device_debugfs(struct dentry *devroot,
struct pinctrl_dev *pctldev)
{
}
#endif
#ifdef CONFIG_GENERIC_PINMUX_FUNCTIONS
/**
* struct function_desc - generic function descriptor
* @func: generic data of the pin function (name and groups of pins)
* @data: pin controller driver specific data
*/
struct function_desc {
struct pinfunction func;
void *data;
};
/* Convenient macro to define a generic pin function descriptor */
#define PINCTRL_FUNCTION_DESC(_name, _grps, _num_grps, _data) \
(struct function_desc) { \
.func = PINCTRL_PINFUNCTION(_name, _grps, _num_grps), \
.data = _data, \
}
int pinmux_generic_get_function_count(struct pinctrl_dev *pctldev);
const char *
pinmux_generic_get_function_name(struct pinctrl_dev *pctldev,
unsigned int selector);
int pinmux_generic_get_function_groups(struct pinctrl_dev *pctldev,
unsigned int selector,
const char * const **groups,
unsigned int * const ngroups);
struct function_desc *pinmux_generic_get_function(struct pinctrl_dev *pctldev,
unsigned int selector);
int pinmux_generic_add_function(struct pinctrl_dev *pctldev,
const char *name,
const char * const *groups,
unsigned int const ngroups,
void *data);
int pinmux_generic_remove_function(struct pinctrl_dev *pctldev,
unsigned int selector);
void pinmux_generic_free_functions(struct pinctrl_dev *pctldev);
#else
static inline void pinmux_generic_free_functions(struct pinctrl_dev *pctldev)
{
}
#endif /* CONFIG_GENERIC_PINMUX_FUNCTIONS */
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