mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-05 10:04:12 +08:00
bd0aae66c4
Generic code doesn't modify those strings and .get_function_groups callback has that extra "const" as well. This allows more flexibility in GENERIC_PINMUX_FUNCTIONS users. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Link: https://lore.kernel.org/r/20211216162206.8027-4-zajec5@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
169 lines
4.2 KiB
C
169 lines
4.2 KiB
C
/* 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>
|
|
*/
|
|
#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 pin);
|
|
|
|
int pinmux_request_gpio(struct pinctrl_dev *pctldev,
|
|
struct pinctrl_gpio_range *range,
|
|
unsigned pin, unsigned gpio);
|
|
void pinmux_free_gpio(struct pinctrl_dev *pctldev, unsigned pin,
|
|
struct pinctrl_gpio_range *range);
|
|
int pinmux_gpio_direction(struct pinctrl_dev *pctldev,
|
|
struct pinctrl_gpio_range *range,
|
|
unsigned 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 pin)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
static inline int pinmux_request_gpio(struct pinctrl_dev *pctldev,
|
|
struct pinctrl_gpio_range *range,
|
|
unsigned pin, unsigned gpio)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void pinmux_free_gpio(struct pinctrl_dev *pctldev,
|
|
unsigned pin,
|
|
struct pinctrl_gpio_range *range)
|
|
{
|
|
}
|
|
|
|
static inline int pinmux_gpio_direction(struct pinctrl_dev *pctldev,
|
|
struct pinctrl_gpio_range *range,
|
|
unsigned 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
|
|
* @name: name of the function
|
|
* @group_names: array of pin group names
|
|
* @num_group_names: number of pin group names
|
|
* @data: pin controller driver specific data
|
|
*/
|
|
struct function_desc {
|
|
const char *name;
|
|
const char * const *group_names;
|
|
int num_group_names;
|
|
void *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 * const num_groups);
|
|
|
|
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 const num_groups,
|
|
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 */
|