linux-sg2042/include/linux/acpi_gpio.h

43 lines
1.0 KiB
C

#ifndef _LINUX_ACPI_GPIO_H_
#define _LINUX_ACPI_GPIO_H_
#include <linux/device.h>
#include <linux/errno.h>
#include <linux/gpio.h>
/**
* struct acpi_gpio_info - ACPI GPIO specific information
* @gpioint: if %true this GPIO is of type GpioInt otherwise type is GpioIo
*/
struct acpi_gpio_info {
bool gpioint;
};
#ifdef CONFIG_GPIO_ACPI
int acpi_get_gpio(char *path, int pin);
int acpi_get_gpio_by_index(struct device *dev, int index,
struct acpi_gpio_info *info);
void acpi_gpiochip_request_interrupts(struct gpio_chip *chip);
void acpi_gpiochip_free_interrupts(struct gpio_chip *chip);
#else /* CONFIG_GPIO_ACPI */
static inline int acpi_get_gpio(char *path, int pin)
{
return -ENODEV;
}
static inline int acpi_get_gpio_by_index(struct device *dev, int index,
struct acpi_gpio_info *info)
{
return -ENODEV;
}
static inline void acpi_gpiochip_request_interrupts(struct gpio_chip *chip) { }
static inline void acpi_gpiochip_free_interrupts(struct gpio_chip *chip) { }
#endif /* CONFIG_GPIO_ACPI */
#endif /* _LINUX_ACPI_GPIO_H_ */