Re: [PATCH 5/9] Doc/DT: Add DT binding documentation for MIPI DPI Panel

On 17/03/14 16:19, Laurent Pinchart wrote:

...

+Generic MIPI DPI Panel +======================

+Required properties: +- compatible: "panel-dpi"

+Optional properties: +- label: a symbolic name for the panel +- gpios: panel enable gpio and backlight enable gpio

While integrated in the panel module, the backlight is a separate piece of hardware, which could be controlled through other means (I2C for instance). Wouldn't it be better to add an explicit DT node for the backlight device and reference that node from the panel node ?

Yes, I agree, but do we have the infrastructure or bindings for that?

Ah, I see we now do have a gpio-backlight driver, but it doesn't have DT bindings.

Tomi