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-rw-r--r--include/linux/gpio/driver.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 5dd9c982e2cb..cc9ade4552d9 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -22,6 +22,9 @@ enum gpio_lookup_flags;
struct gpio_chip;
+#define GPIO_LINE_DIRECTION_IN 1
+#define GPIO_LINE_DIRECTION_OUT 0
+
/**
* struct gpio_irq_chip - GPIO interrupt controller
*/