[PATCH V4 1/2] dt-bindings: display: bridge: lvds-codec: Document LVDS data mapping select

[Marek Vasut <marex@denx.de>]

Decoder input LVDS format is a property of the decoder chip or even
its strapping. Add DT property data-mapping the same way lvds-panel
does, to define the LVDS data mapping.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: devicetree@vger.kernel.org
To: dri-devel@lists.freedesktop.org
---
V2: - Use allOf
    - Move the data-mapping to endpoint
V3: - Rebase on V2 submitted a while ago, reinstate changelog
    - Drop the allOf and un-rebase on previous pclk patch
V4: - port@1, remove $ref: /schemas/graph.yaml#/properties/port and
      add $ref: /schemas/graph.yaml#/$defs/port-base
---
 .../bindings/display/bridge/lvds-codec.yaml   | 33 ++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml b/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml
index 304a1367faaa7..c0400c60f272a 100644
--- a/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml
@@ -55,11 +55,26 @@ properties:
           For LVDS decoders, port 0 is the LVDS input
 
       port@1:
-        $ref: /schemas/graph.yaml#/properties/port
+        $ref: /schemas/graph.yaml#/$defs/port-base
         description: |
           For LVDS encoders, port 1 is the LVDS output
           For LVDS decoders, port 1 is the parallel output
 
+        properties:
+          endpoint:
+            $ref: /schemas/media/video-interfaces.yaml#
+            unevaluatedProperties: false
+
+            properties:
+              data-mapping:
+                enum:
+                  - jeida-18
+                  - jeida-24
+                  - vesa-24
+                description: |
+                  The color signals mapping order. See details in
+                  Documentation/devicetree/bindings/display/panel/lvds.yaml
+
     required:
       - port@0
       - port@1
@@ -71,6 +86,22 @@ properties:
 
   power-supply: true
 
+if:
+  not:
+    properties:
+      compatible:
+        contains:
+          const: lvds-decoder
+then:
+  properties:
+    ports:
+      properties:
+        port@1:
+          properties:
+            endpoint:
+              properties:
+                data-mapping: false
+
 required:
   - compatible
   - ports
-- 
2.30.2