1 #ifndef _LINUX_ACPI_GPIO_H_ 2 #define _LINUX_ACPI_GPIO_H_ 3 4 #include <linux/device.h> 5 #include <linux/errno.h> 6 #include <linux/gpio.h> 7 8 /** 9 * struct acpi_gpio_info - ACPI GPIO specific information 10 * @gpioint: if %true this GPIO is of type GpioInt otherwise type is GpioIo 11 */ 12 struct acpi_gpio_info { 13 bool gpioint; 14 }; 15 16 #ifdef CONFIG_GPIO_ACPI 17 18 int acpi_get_gpio(char *path, int pin); 19 int acpi_get_gpio_by_index(struct device *dev, int index, 20 struct acpi_gpio_info *info); 21 void acpi_gpiochip_request_interrupts(struct gpio_chip *chip); 22 void acpi_gpiochip_free_interrupts(struct gpio_chip *chip); 23 24 #else /* CONFIG_GPIO_ACPI */ 25 acpi_get_gpio(char * path,int pin)26static inline int acpi_get_gpio(char *path, int pin) 27 { 28 return -ENODEV; 29 } 30 acpi_get_gpio_by_index(struct device * dev,int index,struct acpi_gpio_info * info)31static inline int acpi_get_gpio_by_index(struct device *dev, int index, 32 struct acpi_gpio_info *info) 33 { 34 return -ENODEV; 35 } 36 acpi_gpiochip_request_interrupts(struct gpio_chip * chip)37static inline void acpi_gpiochip_request_interrupts(struct gpio_chip *chip) { } acpi_gpiochip_free_interrupts(struct gpio_chip * chip)38static inline void acpi_gpiochip_free_interrupts(struct gpio_chip *chip) { } 39 40 #endif /* CONFIG_GPIO_ACPI */ 41 42 #endif /* _LINUX_ACPI_GPIO_H_ */ 43