From: Hans Verkuil hans.verkuil@cisco.com
Some boards have both a DesignWare and their own CEC controller. The CEC pin is only hooked up to their own CEC controller and not to the DW controller.
Add the cec-disable property to disable the DW CEC controller.
This particular situation happens on Amlogic boards that have their own meson CEC controller.
Signed-off-by: Hans Verkuil hans.verkuil@cisco.com Acked-by: Neil Armstrong narmstrong@baylibre.com --- Documentation/devicetree/bindings/display/bridge/dw_hdmi.txt | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/bridge/dw_hdmi.txt b/Documentation/devicetree/bindings/display/bridge/dw_hdmi.txt index 33bf981fbe33..4a13f4858bc0 100644 --- a/Documentation/devicetree/bindings/display/bridge/dw_hdmi.txt +++ b/Documentation/devicetree/bindings/display/bridge/dw_hdmi.txt @@ -27,6 +27,9 @@ responsible for defining whether each property is required or optional. - "isfr" is the internal register configuration clock (mandatory). - "cec" is the HDMI CEC controller main clock (optional).
+- cec-disable: Do not use the DWC CEC controller since the CEC line is not + hooked up even though the CEC DWC IP is present. + - ports: The connectivity of the DWC HDMI TX with the rest of the system is expressed in using ports as specified in the device graph bindings defined in Documentation/devicetree/bindings/graph.txt. The numbering of the ports