linux/drivers/pinctrl/pinmux.h
Stephen Warren 1e2082b520 pinctrl: enhance mapping table to support pin config operations
The pinctrl mapping table can now contain entries to:
* Set the mux function of a pin group
* Apply a set of pin config options to a pin or a group

This allows pinctrl_select_state() to apply pin configs settings as well
as mux settings.

v3: Fix find_pinctrl() to iterate over the correct list.
   s/_MUX_CONFIGS_/_CONFIGS_/ in mapping table macros.
   Fix documentation to use correct mapping table macro.
v2: Added numerous extra PIN_MAP_*() special-case macros.
   Fixed kerneldoc typo. Delete pinctrl_get_pin_id() and
   replace it with pin_get_from_name(). Various minor fixes.
   Updates due to rebase.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-03-05 11:25:11 +01:00

108 lines
2.7 KiB
C

/*
* 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>
*
* License terms: GNU General Public License (GPL) version 2
*/
#ifdef CONFIG_PINMUX
int pinmux_check_ops(struct pinctrl_dev *pctldev);
int pinmux_validate_map(struct pinctrl_map const *map, int i);
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(struct pinctrl_map const *map,
struct pinctrl_setting *setting);
void pinmux_free_setting(struct pinctrl_setting const *setting);
int pinmux_enable_setting(struct pinctrl_setting const *setting);
void pinmux_disable_setting(struct pinctrl_setting const *setting);
void pinmux_show_map(struct seq_file *s, struct pinctrl_map const *map);
void pinmux_show_setting(struct seq_file *s,
struct pinctrl_setting const *setting);
void pinmux_init_device_debugfs(struct dentry *devroot,
struct pinctrl_dev *pctldev);
#else
static inline int pinmux_check_ops(struct pinctrl_dev *pctldev)
{
return 0;
}
static inline int pinmux_validate_map(struct pinctrl_map const *map, int i)
{
return 0;
}
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(struct pinctrl_map const *map,
struct pinctrl_setting *setting)
{
return 0;
}
static inline void pinmux_free_setting(struct pinctrl_setting const *setting)
{
}
static inline int pinmux_enable_setting(struct pinctrl_setting const *setting)
{
return 0;
}
static inline void pinmux_disable_setting(
struct pinctrl_setting const *setting)
{
}
static inline void pinmux_show_map(struct seq_file *s,
struct pinctrl_map const *map)
{
}
static inline void pinmux_show_setting(struct seq_file *s,
struct pinctrl_setting const *setting)
{
}
static inline void pinmux_init_device_debugfs(struct dentry *devroot,
struct pinctrl_dev *pctldev)
{
}
#endif