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

Matti Vaittinen
2019-11-05T13:10:54Z

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 --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
*/
--
2.21.0

--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND

~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]