[PATCHv2 1/3] dt-bindings: display: dw_hdmi.txt: add cec-disable property
hverkuil at xs4all.nl
Fri Mar 23 05:59:13 PDT 2018
From: Hans Verkuil <hans.verkuil at 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 at cisco.com>
Acked-by: Neil Armstrong <narmstrong at 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
@@ -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
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