forked from mirrors/linux
74975b4f28
With no more users, we can remove acpi_get_and_request_gpiod(). Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: From: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
658 lines
18 KiB
C
658 lines
18 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __LINUX_GPIO_CONSUMER_H
|
|
#define __LINUX_GPIO_CONSUMER_H
|
|
|
|
#include <linux/bits.h>
|
|
#include <linux/types.h>
|
|
|
|
struct acpi_device;
|
|
struct device;
|
|
struct fwnode_handle;
|
|
|
|
struct gpio_array;
|
|
struct gpio_desc;
|
|
|
|
/**
|
|
* struct gpio_descs - Struct containing an array of descriptors that can be
|
|
* obtained using gpiod_get_array()
|
|
*
|
|
* @info: Pointer to the opaque gpio_array structure
|
|
* @ndescs: Number of held descriptors
|
|
* @desc: Array of pointers to GPIO descriptors
|
|
*/
|
|
struct gpio_descs {
|
|
struct gpio_array *info;
|
|
unsigned int ndescs;
|
|
struct gpio_desc *desc[];
|
|
};
|
|
|
|
#define GPIOD_FLAGS_BIT_DIR_SET BIT(0)
|
|
#define GPIOD_FLAGS_BIT_DIR_OUT BIT(1)
|
|
#define GPIOD_FLAGS_BIT_DIR_VAL BIT(2)
|
|
#define GPIOD_FLAGS_BIT_OPEN_DRAIN BIT(3)
|
|
#define GPIOD_FLAGS_BIT_NONEXCLUSIVE BIT(4)
|
|
|
|
/**
|
|
* enum gpiod_flags - Optional flags that can be passed to one of gpiod_* to
|
|
* configure direction and output value. These values
|
|
* cannot be OR'd.
|
|
*
|
|
* @GPIOD_ASIS: Don't change anything
|
|
* @GPIOD_IN: Set lines to input mode
|
|
* @GPIOD_OUT_LOW: Set lines to output and drive them low
|
|
* @GPIOD_OUT_HIGH: Set lines to output and drive them high
|
|
* @GPIOD_OUT_LOW_OPEN_DRAIN: Set lines to open-drain output and drive them low
|
|
* @GPIOD_OUT_HIGH_OPEN_DRAIN: Set lines to open-drain output and drive them high
|
|
*/
|
|
enum gpiod_flags {
|
|
GPIOD_ASIS = 0,
|
|
GPIOD_IN = GPIOD_FLAGS_BIT_DIR_SET,
|
|
GPIOD_OUT_LOW = GPIOD_FLAGS_BIT_DIR_SET | GPIOD_FLAGS_BIT_DIR_OUT,
|
|
GPIOD_OUT_HIGH = GPIOD_FLAGS_BIT_DIR_SET | GPIOD_FLAGS_BIT_DIR_OUT |
|
|
GPIOD_FLAGS_BIT_DIR_VAL,
|
|
GPIOD_OUT_LOW_OPEN_DRAIN = GPIOD_OUT_LOW | GPIOD_FLAGS_BIT_OPEN_DRAIN,
|
|
GPIOD_OUT_HIGH_OPEN_DRAIN = GPIOD_OUT_HIGH | GPIOD_FLAGS_BIT_OPEN_DRAIN,
|
|
};
|
|
|
|
#ifdef CONFIG_GPIOLIB
|
|
|
|
/* Return the number of GPIOs associated with a device / function */
|
|
int gpiod_count(struct device *dev, const char *con_id);
|
|
|
|
/* Acquire and dispose GPIOs */
|
|
struct gpio_desc *__must_check gpiod_get(struct device *dev,
|
|
const char *con_id,
|
|
enum gpiod_flags flags);
|
|
struct gpio_desc *__must_check gpiod_get_index(struct device *dev,
|
|
const char *con_id,
|
|
unsigned int idx,
|
|
enum gpiod_flags flags);
|
|
struct gpio_desc *__must_check gpiod_get_optional(struct device *dev,
|
|
const char *con_id,
|
|
enum gpiod_flags flags);
|
|
struct gpio_desc *__must_check gpiod_get_index_optional(struct device *dev,
|
|
const char *con_id,
|
|
unsigned int index,
|
|
enum gpiod_flags flags);
|
|
struct gpio_descs *__must_check gpiod_get_array(struct device *dev,
|
|
const char *con_id,
|
|
enum gpiod_flags flags);
|
|
struct gpio_descs *__must_check gpiod_get_array_optional(struct device *dev,
|
|
const char *con_id,
|
|
enum gpiod_flags flags);
|
|
void gpiod_put(struct gpio_desc *desc);
|
|
void gpiod_put_array(struct gpio_descs *descs);
|
|
|
|
struct gpio_desc *__must_check devm_gpiod_get(struct device *dev,
|
|
const char *con_id,
|
|
enum gpiod_flags flags);
|
|
struct gpio_desc *__must_check devm_gpiod_get_index(struct device *dev,
|
|
const char *con_id,
|
|
unsigned int idx,
|
|
enum gpiod_flags flags);
|
|
struct gpio_desc *__must_check devm_gpiod_get_optional(struct device *dev,
|
|
const char *con_id,
|
|
enum gpiod_flags flags);
|
|
struct gpio_desc *__must_check
|
|
devm_gpiod_get_index_optional(struct device *dev, const char *con_id,
|
|
unsigned int index, enum gpiod_flags flags);
|
|
struct gpio_descs *__must_check devm_gpiod_get_array(struct device *dev,
|
|
const char *con_id,
|
|
enum gpiod_flags flags);
|
|
struct gpio_descs *__must_check
|
|
devm_gpiod_get_array_optional(struct device *dev, const char *con_id,
|
|
enum gpiod_flags flags);
|
|
void devm_gpiod_put(struct device *dev, struct gpio_desc *desc);
|
|
void devm_gpiod_unhinge(struct device *dev, struct gpio_desc *desc);
|
|
void devm_gpiod_put_array(struct device *dev, struct gpio_descs *descs);
|
|
|
|
int gpiod_get_direction(struct gpio_desc *desc);
|
|
int gpiod_direction_input(struct gpio_desc *desc);
|
|
int gpiod_direction_output(struct gpio_desc *desc, int value);
|
|
int gpiod_direction_output_raw(struct gpio_desc *desc, int value);
|
|
int gpiod_enable_hw_timestamp_ns(struct gpio_desc *desc, unsigned long flags);
|
|
int gpiod_disable_hw_timestamp_ns(struct gpio_desc *desc, unsigned long flags);
|
|
|
|
/* Value get/set from non-sleeping context */
|
|
int gpiod_get_value(const struct gpio_desc *desc);
|
|
int gpiod_get_array_value(unsigned int array_size,
|
|
struct gpio_desc **desc_array,
|
|
struct gpio_array *array_info,
|
|
unsigned long *value_bitmap);
|
|
void gpiod_set_value(struct gpio_desc *desc, int value);
|
|
int gpiod_set_array_value(unsigned int array_size,
|
|
struct gpio_desc **desc_array,
|
|
struct gpio_array *array_info,
|
|
unsigned long *value_bitmap);
|
|
int gpiod_get_raw_value(const struct gpio_desc *desc);
|
|
int gpiod_get_raw_array_value(unsigned int array_size,
|
|
struct gpio_desc **desc_array,
|
|
struct gpio_array *array_info,
|
|
unsigned long *value_bitmap);
|
|
void gpiod_set_raw_value(struct gpio_desc *desc, int value);
|
|
int gpiod_set_raw_array_value(unsigned int array_size,
|
|
struct gpio_desc **desc_array,
|
|
struct gpio_array *array_info,
|
|
unsigned long *value_bitmap);
|
|
|
|
/* Value get/set from sleeping context */
|
|
int gpiod_get_value_cansleep(const struct gpio_desc *desc);
|
|
int gpiod_get_array_value_cansleep(unsigned int array_size,
|
|
struct gpio_desc **desc_array,
|
|
struct gpio_array *array_info,
|
|
unsigned long *value_bitmap);
|
|
void gpiod_set_value_cansleep(struct gpio_desc *desc, int value);
|
|
int gpiod_set_array_value_cansleep(unsigned int array_size,
|
|
struct gpio_desc **desc_array,
|
|
struct gpio_array *array_info,
|
|
unsigned long *value_bitmap);
|
|
int gpiod_get_raw_value_cansleep(const struct gpio_desc *desc);
|
|
int gpiod_get_raw_array_value_cansleep(unsigned int array_size,
|
|
struct gpio_desc **desc_array,
|
|
struct gpio_array *array_info,
|
|
unsigned long *value_bitmap);
|
|
void gpiod_set_raw_value_cansleep(struct gpio_desc *desc, int value);
|
|
int gpiod_set_raw_array_value_cansleep(unsigned int array_size,
|
|
struct gpio_desc **desc_array,
|
|
struct gpio_array *array_info,
|
|
unsigned long *value_bitmap);
|
|
|
|
int gpiod_set_config(struct gpio_desc *desc, unsigned long config);
|
|
int gpiod_set_debounce(struct gpio_desc *desc, unsigned int debounce);
|
|
void gpiod_toggle_active_low(struct gpio_desc *desc);
|
|
|
|
int gpiod_is_active_low(const struct gpio_desc *desc);
|
|
int gpiod_cansleep(const struct gpio_desc *desc);
|
|
|
|
int gpiod_to_irq(const struct gpio_desc *desc);
|
|
int gpiod_set_consumer_name(struct gpio_desc *desc, const char *name);
|
|
|
|
/* Convert between the old gpio_ and new gpiod_ interfaces */
|
|
struct gpio_desc *gpio_to_desc(unsigned gpio);
|
|
int desc_to_gpio(const struct gpio_desc *desc);
|
|
|
|
struct gpio_desc *fwnode_gpiod_get_index(struct fwnode_handle *fwnode,
|
|
const char *con_id, int index,
|
|
enum gpiod_flags flags,
|
|
const char *label);
|
|
struct gpio_desc *devm_fwnode_gpiod_get_index(struct device *dev,
|
|
struct fwnode_handle *child,
|
|
const char *con_id, int index,
|
|
enum gpiod_flags flags,
|
|
const char *label);
|
|
|
|
#else /* CONFIG_GPIOLIB */
|
|
|
|
#include <linux/err.h>
|
|
#include <linux/kernel.h>
|
|
|
|
#include <asm/bug.h>
|
|
|
|
static inline int gpiod_count(struct device *dev, const char *con_id)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline struct gpio_desc *__must_check gpiod_get(struct device *dev,
|
|
const char *con_id,
|
|
enum gpiod_flags flags)
|
|
{
|
|
return ERR_PTR(-ENOSYS);
|
|
}
|
|
static inline struct gpio_desc *__must_check
|
|
gpiod_get_index(struct device *dev,
|
|
const char *con_id,
|
|
unsigned int idx,
|
|
enum gpiod_flags flags)
|
|
{
|
|
return ERR_PTR(-ENOSYS);
|
|
}
|
|
|
|
static inline struct gpio_desc *__must_check
|
|
gpiod_get_optional(struct device *dev, const char *con_id,
|
|
enum gpiod_flags flags)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct gpio_desc *__must_check
|
|
gpiod_get_index_optional(struct device *dev, const char *con_id,
|
|
unsigned int index, enum gpiod_flags flags)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct gpio_descs *__must_check
|
|
gpiod_get_array(struct device *dev, const char *con_id,
|
|
enum gpiod_flags flags)
|
|
{
|
|
return ERR_PTR(-ENOSYS);
|
|
}
|
|
|
|
static inline struct gpio_descs *__must_check
|
|
gpiod_get_array_optional(struct device *dev, const char *con_id,
|
|
enum gpiod_flags flags)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline void gpiod_put(struct gpio_desc *desc)
|
|
{
|
|
might_sleep();
|
|
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
}
|
|
|
|
static inline void devm_gpiod_unhinge(struct device *dev,
|
|
struct gpio_desc *desc)
|
|
{
|
|
might_sleep();
|
|
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
}
|
|
|
|
static inline void gpiod_put_array(struct gpio_descs *descs)
|
|
{
|
|
might_sleep();
|
|
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(descs);
|
|
}
|
|
|
|
static inline struct gpio_desc *__must_check
|
|
devm_gpiod_get(struct device *dev,
|
|
const char *con_id,
|
|
enum gpiod_flags flags)
|
|
{
|
|
return ERR_PTR(-ENOSYS);
|
|
}
|
|
static inline
|
|
struct gpio_desc *__must_check
|
|
devm_gpiod_get_index(struct device *dev,
|
|
const char *con_id,
|
|
unsigned int idx,
|
|
enum gpiod_flags flags)
|
|
{
|
|
return ERR_PTR(-ENOSYS);
|
|
}
|
|
|
|
static inline struct gpio_desc *__must_check
|
|
devm_gpiod_get_optional(struct device *dev, const char *con_id,
|
|
enum gpiod_flags flags)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct gpio_desc *__must_check
|
|
devm_gpiod_get_index_optional(struct device *dev, const char *con_id,
|
|
unsigned int index, enum gpiod_flags flags)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct gpio_descs *__must_check
|
|
devm_gpiod_get_array(struct device *dev, const char *con_id,
|
|
enum gpiod_flags flags)
|
|
{
|
|
return ERR_PTR(-ENOSYS);
|
|
}
|
|
|
|
static inline struct gpio_descs *__must_check
|
|
devm_gpiod_get_array_optional(struct device *dev, const char *con_id,
|
|
enum gpiod_flags flags)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline void devm_gpiod_put(struct device *dev, struct gpio_desc *desc)
|
|
{
|
|
might_sleep();
|
|
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
}
|
|
|
|
static inline void devm_gpiod_put_array(struct device *dev,
|
|
struct gpio_descs *descs)
|
|
{
|
|
might_sleep();
|
|
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(descs);
|
|
}
|
|
|
|
|
|
static inline int gpiod_get_direction(const struct gpio_desc *desc)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
return -ENOSYS;
|
|
}
|
|
static inline int gpiod_direction_input(struct gpio_desc *desc)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
return -ENOSYS;
|
|
}
|
|
static inline int gpiod_direction_output(struct gpio_desc *desc, int value)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
return -ENOSYS;
|
|
}
|
|
static inline int gpiod_direction_output_raw(struct gpio_desc *desc, int value)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
return -ENOSYS;
|
|
}
|
|
static inline int gpiod_enable_hw_timestamp_ns(struct gpio_desc *desc,
|
|
unsigned long flags)
|
|
{
|
|
WARN_ON(desc);
|
|
return -ENOSYS;
|
|
}
|
|
static inline int gpiod_disable_hw_timestamp_ns(struct gpio_desc *desc,
|
|
unsigned long flags)
|
|
{
|
|
WARN_ON(desc);
|
|
return -ENOSYS;
|
|
}
|
|
static inline int gpiod_get_value(const struct gpio_desc *desc)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
return 0;
|
|
}
|
|
static inline int gpiod_get_array_value(unsigned int array_size,
|
|
struct gpio_desc **desc_array,
|
|
struct gpio_array *array_info,
|
|
unsigned long *value_bitmap)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc_array);
|
|
return 0;
|
|
}
|
|
static inline void gpiod_set_value(struct gpio_desc *desc, int value)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
}
|
|
static inline int gpiod_set_array_value(unsigned int array_size,
|
|
struct gpio_desc **desc_array,
|
|
struct gpio_array *array_info,
|
|
unsigned long *value_bitmap)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc_array);
|
|
return 0;
|
|
}
|
|
static inline int gpiod_get_raw_value(const struct gpio_desc *desc)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
return 0;
|
|
}
|
|
static inline int gpiod_get_raw_array_value(unsigned int array_size,
|
|
struct gpio_desc **desc_array,
|
|
struct gpio_array *array_info,
|
|
unsigned long *value_bitmap)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc_array);
|
|
return 0;
|
|
}
|
|
static inline void gpiod_set_raw_value(struct gpio_desc *desc, int value)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
}
|
|
static inline int gpiod_set_raw_array_value(unsigned int array_size,
|
|
struct gpio_desc **desc_array,
|
|
struct gpio_array *array_info,
|
|
unsigned long *value_bitmap)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc_array);
|
|
return 0;
|
|
}
|
|
|
|
static inline int gpiod_get_value_cansleep(const struct gpio_desc *desc)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
return 0;
|
|
}
|
|
static inline int gpiod_get_array_value_cansleep(unsigned int array_size,
|
|
struct gpio_desc **desc_array,
|
|
struct gpio_array *array_info,
|
|
unsigned long *value_bitmap)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc_array);
|
|
return 0;
|
|
}
|
|
static inline void gpiod_set_value_cansleep(struct gpio_desc *desc, int value)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
}
|
|
static inline int gpiod_set_array_value_cansleep(unsigned int array_size,
|
|
struct gpio_desc **desc_array,
|
|
struct gpio_array *array_info,
|
|
unsigned long *value_bitmap)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc_array);
|
|
return 0;
|
|
}
|
|
static inline int gpiod_get_raw_value_cansleep(const struct gpio_desc *desc)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
return 0;
|
|
}
|
|
static inline int gpiod_get_raw_array_value_cansleep(unsigned int array_size,
|
|
struct gpio_desc **desc_array,
|
|
struct gpio_array *array_info,
|
|
unsigned long *value_bitmap)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc_array);
|
|
return 0;
|
|
}
|
|
static inline void gpiod_set_raw_value_cansleep(struct gpio_desc *desc,
|
|
int value)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
}
|
|
static inline int gpiod_set_raw_array_value_cansleep(unsigned int array_size,
|
|
struct gpio_desc **desc_array,
|
|
struct gpio_array *array_info,
|
|
unsigned long *value_bitmap)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc_array);
|
|
return 0;
|
|
}
|
|
|
|
static inline int gpiod_set_config(struct gpio_desc *desc, unsigned long config)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int gpiod_set_debounce(struct gpio_desc *desc, unsigned int debounce)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline void gpiod_toggle_active_low(struct gpio_desc *desc)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
}
|
|
|
|
static inline int gpiod_is_active_low(const struct gpio_desc *desc)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
return 0;
|
|
}
|
|
static inline int gpiod_cansleep(const struct gpio_desc *desc)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
return 0;
|
|
}
|
|
|
|
static inline int gpiod_to_irq(const struct gpio_desc *desc)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
return -EINVAL;
|
|
}
|
|
|
|
static inline int gpiod_set_consumer_name(struct gpio_desc *desc,
|
|
const char *name)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
return -EINVAL;
|
|
}
|
|
|
|
static inline struct gpio_desc *gpio_to_desc(unsigned gpio)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline int desc_to_gpio(const struct gpio_desc *desc)
|
|
{
|
|
/* GPIO can never have been requested */
|
|
WARN_ON(desc);
|
|
return -EINVAL;
|
|
}
|
|
|
|
static inline
|
|
struct gpio_desc *fwnode_gpiod_get_index(struct fwnode_handle *fwnode,
|
|
const char *con_id, int index,
|
|
enum gpiod_flags flags,
|
|
const char *label)
|
|
{
|
|
return ERR_PTR(-ENOSYS);
|
|
}
|
|
|
|
static inline
|
|
struct gpio_desc *devm_fwnode_gpiod_get_index(struct device *dev,
|
|
struct fwnode_handle *fwnode,
|
|
const char *con_id, int index,
|
|
enum gpiod_flags flags,
|
|
const char *label)
|
|
{
|
|
return ERR_PTR(-ENOSYS);
|
|
}
|
|
|
|
#endif /* CONFIG_GPIOLIB */
|
|
|
|
static inline
|
|
struct gpio_desc *devm_fwnode_gpiod_get(struct device *dev,
|
|
struct fwnode_handle *fwnode,
|
|
const char *con_id,
|
|
enum gpiod_flags flags,
|
|
const char *label)
|
|
{
|
|
return devm_fwnode_gpiod_get_index(dev, fwnode, con_id, 0,
|
|
flags, label);
|
|
}
|
|
|
|
struct acpi_gpio_params {
|
|
unsigned int crs_entry_index;
|
|
unsigned int line_index;
|
|
bool active_low;
|
|
};
|
|
|
|
struct acpi_gpio_mapping {
|
|
const char *name;
|
|
const struct acpi_gpio_params *data;
|
|
unsigned int size;
|
|
|
|
/* Ignore IoRestriction field */
|
|
#define ACPI_GPIO_QUIRK_NO_IO_RESTRICTION BIT(0)
|
|
/*
|
|
* When ACPI GPIO mapping table is in use the index parameter inside it
|
|
* refers to the GPIO resource in _CRS method. That index has no
|
|
* distinction of actual type of the resource. When consumer wants to
|
|
* get GpioIo type explicitly, this quirk may be used.
|
|
*/
|
|
#define ACPI_GPIO_QUIRK_ONLY_GPIOIO BIT(1)
|
|
/* Use given pin as an absolute GPIO number in the system */
|
|
#define ACPI_GPIO_QUIRK_ABSOLUTE_NUMBER BIT(2)
|
|
|
|
unsigned int quirks;
|
|
};
|
|
|
|
#if IS_ENABLED(CONFIG_GPIOLIB) && IS_ENABLED(CONFIG_ACPI)
|
|
|
|
int acpi_dev_add_driver_gpios(struct acpi_device *adev,
|
|
const struct acpi_gpio_mapping *gpios);
|
|
void acpi_dev_remove_driver_gpios(struct acpi_device *adev);
|
|
|
|
int devm_acpi_dev_add_driver_gpios(struct device *dev,
|
|
const struct acpi_gpio_mapping *gpios);
|
|
|
|
#else /* CONFIG_GPIOLIB && CONFIG_ACPI */
|
|
|
|
#include <linux/err.h>
|
|
|
|
static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
|
|
const struct acpi_gpio_mapping *gpios)
|
|
{
|
|
return -ENXIO;
|
|
}
|
|
static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
|
|
|
|
static inline int devm_acpi_dev_add_driver_gpios(struct device *dev,
|
|
const struct acpi_gpio_mapping *gpios)
|
|
{
|
|
return -ENXIO;
|
|
}
|
|
|
|
#endif /* CONFIG_GPIOLIB && CONFIG_ACPI */
|
|
|
|
|
|
#if IS_ENABLED(CONFIG_GPIOLIB) && IS_ENABLED(CONFIG_GPIO_SYSFS)
|
|
|
|
int gpiod_export(struct gpio_desc *desc, bool direction_may_change);
|
|
int gpiod_export_link(struct device *dev, const char *name,
|
|
struct gpio_desc *desc);
|
|
void gpiod_unexport(struct gpio_desc *desc);
|
|
|
|
#else /* CONFIG_GPIOLIB && CONFIG_GPIO_SYSFS */
|
|
|
|
#include <asm/errno.h>
|
|
|
|
static inline int gpiod_export(struct gpio_desc *desc,
|
|
bool direction_may_change)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int gpiod_export_link(struct device *dev, const char *name,
|
|
struct gpio_desc *desc)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline void gpiod_unexport(struct gpio_desc *desc)
|
|
{
|
|
}
|
|
|
|
#endif /* CONFIG_GPIOLIB && CONFIG_GPIO_SYSFS */
|
|
|
|
#endif
|