From: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Date: Wed, 6 Nov 2019 10:51:47 +0200
Subject: gpio: Add definition for GPIO direction
Git-commit: 9208b1e77d6e8e9776f34f46ef4079ecac9c3c25
Patch-mainline: v5.5-rc1
References: jsc#SLE-15847
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>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
include/linux/gpio/driver.h | 3 +++
1 file changed, 3 insertions(+)
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
*/
--
2.26.2