Re: [PATCH 4/9] Doc/DT: Add DT binding documentation for HDMI Connector

On 01/03/14 20:58, Geert Uytterhoeven wrote:

On Fri, Feb 28, 2014 at 5:34 PM, Russell King - ARM Linux
[off-list ref] wrote:

quoted

There's actually three HDMI connectors:

  All three connectors carry all required HDMI signals, including a TMDS
  link. The Type B connector is slightly larger and carries a second TMDS
  link, which is necessary to support very high resolution displays using
  dual link. The Type C connector carries the same signals as the Type A
  but is more compact and intended for mobile applications.

So, Type C and Type A are electrically the same.

There's also D (e.g. on BeagleBone Black) and E:

http://en.wikipedia.org/wiki/HDMI#Connectors

Electrically they seem to be the same as A/C.

I made the following change compared to the posted version.

 Tomi

@@ -3,6 +3,7 @@ HDMI Connector

 Required properties:
 - compatible: "hdmi-connector"
+- type: the HDMI connector type: "a", "b", "c", "d" or "e"

 Optional properties:
 - label: a symbolic name for the connector

@@ -17,6 +18,8 @@ hdmi0: connector@1 {
        compatible = "hdmi-connector";
        label = "hdmi";

+       type = "a";
+
        hdmi_connector_in: endpoint {
                remote-endpoint = <&tpd12s015_out>;
        };