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authorMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>2019-11-06 11:51:47 +0300
committerLinus Walleij <linus.walleij@linaro.org>2019-11-07 11:19:39 +0300
commit9208b1e77d6e8e9776f34f46ef4079ecac9c3c25 (patch)
treeb7709295d8d0bdbfce5435dfed75cd345dc584f8 /include/linux/gpio
parent5d682fa3d8943c19a632ebeaf70e8b9e41c78a5b (diff)
downloadlinux-9208b1e77d6e8e9776f34f46ef4079ecac9c3c25.tar.xz
gpio: Add definition for GPIO direction
At least for me it is difficult to remember the meaning of GPIO direction values. Define GPIO_LINE_DIRECTION_IN and GPIO_LINE_DIRECTION_OUT so that occasional GPIO contributors would not need to always check the meaning of hard coded values 1 and 0. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'include/linux/gpio')
-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
*/