[PATCH] drm/exynos: Get HDMI version from device tree

[Stephen Warren]

On 01/07/2013 01:43 PM, Sean Paul wrote:
> Add a property to the hdmi node so we can specify the HDMI version in
> the device tree instead of just defaulting to v1.4 with the existence of
> the dt node.

> diff --git a/Documentation/devicetree/bindings/drm/exynos/hdmi.txt b/Documentation/devicetree/bindings/drm/exynos/hdmi.txt

> @@ -11,6 +11,8 @@ Required properties:
>  	c) pin function mode.
>  	d) optional flags and pull up/down.
>  	e) drive strength.
> +- samsung,supports-hdmi-1.4: Define if device supports HDMI v1.4
> +- samsung,supports-hdmi-1.3: Define if device supports HDMI v1.3

Which device; the HDMI controller in the SoC, or the HDMI sink?

The HDMI sync reports what it supports in the EDID, so there shouldn't
be a need to duplicate this in the device tree (besides, how can you
know what the user plugged in without parsing the EDID?)