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Commit f54b4df6 authored by Laurent Pinchart's avatar Laurent Pinchart
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dt-bindings: display: renesas: lvds: Add renesas,companion property 



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
encoders.

Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: default avatarJacopo Mondi <jacopo@jmondi.org>
Tested-by: default avatarJacopo Mondi <jacopo+renesas@jmondi.org>
Acked-by: default avatarSam Ravnborg <sam@ravnborg.org>
Reviewed-by: default avatarKieran Bingham <kieran.bingham+renesas@ideasonboard.com>
parent 1ddf2d4a

Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt

+14 −4
Original line number Diff line number Diff line
@@ -46,14 +46,24 @@ OF graph bindings specified in Documentation/devicetree/bindings/graph.txt. 


Each port shall have a single endpoint.



Optional properties:



- renesas,companion : phandle to the companion LVDS encoder. This property is

  mandatory for the first LVDS encoder on D3 and E3 SoCs, and shall point to

  the second encoder to be used as a companion in dual-link mode. It shall not

  be set for any other LVDS encoder.





Example:



	lvds0: lvds@feb90000 {

		compatible = "renesas,r8a7790-lvds";

		reg = <0 0xfeb90000 0 0x1c>;

		clocks = <&cpg CPG_MOD 726>;

		resets = <&cpg 726>;

		compatible = "renesas,r8a77990-lvds";

		reg = <0 0xfeb90000 0 0x20>;

		clocks = <&cpg CPG_MOD 727>;

		power-domains = <&sysc R8A77990_PD_ALWAYS_ON>;

		resets = <&cpg 727>;



		renesas,companion = <&lvds1>;



		ports {

			#address-cells = <1>;