Add a new optional renesas,companion property to point to the companion
LVDS encoder. This is used to support dual-link operation where the main
LVDS encoder splits even-numbered and odd-numbered pixels between the
two LVDS encoders.

The new property doesn't control the mode of operation, it only
describes the relationship between the master and companion LVDS

Signed-off-by: Laurent Pinchart <>
 .../devicetree/bindings/display/bridge/renesas,lvds.txt     | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt 
index 900a884ad9f5..a720dbb5de69 100644
--- a/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt
+++ b/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt
@@ -45,6 +45,12 @@ OF graph bindings specified in 
 Each port shall have a single endpoint.
+Optional properties:
+- renesas,companion : phandle to the companion LVDS encoder. This property is
+  valid for the first LVDS encoder D3 and E3 SoCs only, and points to the
+  second encoder to be used as a companion in dual-link mode.

Laurent Pinchart

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