gpiolib-acpi: introduce acpi_get_gpio_by_index() helper

[firefly-linux-kernel-4.4.55.git] / include / linux / acpi_gpio.h

diff --git a/include/linux/acpi_gpio.h b/include/linux/acpi_gpio.h
index 213135f443332d006f2cdd7ef4e6b3a088bf61f1..4c120a1e0ca3b0cbe4070f20b7a2905582f62b6c 100644 (file)
--- a/include/linux/acpi_gpio.h
+++ b/include/linux/acpi_gpio.h
@@ -1,12 +1,23 @@
 #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);
 
@@ -17,6 +28,12 @@ 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) { }