dt-bindings: display: bridge: cdns,dsi: Add compatible for dsi on j721e

Add compatible to support dsi bridge on j721e

Signed-off-by: Rahul T R <[e-mail]>
Reviewed-by: Rob Herring <[e-mail]>
Reviewed-by: Laurent Pinchart <[e-mail]>
Reviewed-by: Andrzej Hajda <[e-mail]>
Signed-off-by: Tomi Valkeinen <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

Documentation/devicetree/bindings/display/bridge/cdns,dsi.yaml

···
   compatible:
     enum:
       - cdns,dsi
+      - ti,j721e-dsi
 
   reg:
-    maxItems: 1
+    minItems: 1
+    items:
+      - description:
+          Register block for controller's registers.
+      - description:
+          Register block for wrapper settings registers in case of TI J7 SoCs.
 
   clocks:
     items:
···
 
 allOf:
   - $ref: ../dsi-controller.yaml#
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: ti,j721e-dsi
+    then:
+      properties:
+        reg:
+          minItems: 2
+          maxItems: 2
+        power-domains:
+          maxItems: 1
+    else:
+      properties:
+        reg:
+          maxItems: 1
 
 required:
   - compatible