diff mbox series

[RESEND,01/62] gpio: Add definition for GPIO direction

Message ID 9e233d62cc282f3b03196d638f2188d9ab394b75.1572875541.git.matti.vaittinen@fi.rohmeurope.com (mailing list archive)
State New, archived
Headers show
Series Add definition for GPIO direction | expand

Commit Message

Vaittinen, Matti Nov. 5, 2019, 1:10 p.m. UTC 
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>
---

Sorry for folks. I do resend this single patch as this was intended
to be sent for _all_ reviewers. I accidentally did originally send
this only to those the get_maintainer.py listed for this patch.

 include/linux/gpio/driver.h | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

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
  */