Hi,

On Thu 12 Sep 19, 10:19, Linus Walleij wrote:

On Tue, Sep 10, 2019 at 4:29 PM Paul Kocialkowski
[off-list ref] wrote:

quoted

The Xylon LogiCVC display controller exports some GPIOs, which are
exposed as a dedicated driver.

This introduces the associated device-tree bindings documentation.

Signed-off-by: Paul Kocialkowski <redacted>

(...)

quoted

+The controller exposes GPIOs from the display and power control registers,
+which are mapped by the driver as follows:
+- GPIO[4:0] (display control) mapped to index 0-4
+- EN_BLIGHT (power control) mapped to index 5
+- EN_VDD (power control) mapped to index 6
+- EN_VEE (power control) mapped to index 7
+- V_EN (power control) mapped to index 8

This should be reflected in the gpio-line-names in the example
and in your device trees.

Thanks, I didn't know about it until now!

Cheers,

Paul

-- 
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com