From: Biju Das <biju.das.jz@bp.renesas.com>

The DU block on the RZ/G3L SoC is identical to the one found on the RZ/G2L
SoC. However, it supports the DSI, DPI, and LVDS interfaces, while the
RZ/G2L supports only the DSI and DPI interfaces.

Due to this difference, a SoC-specific compatible string,
'renesas,r9a08g046-du', is added for the RZ/G3L SoC.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
 .../bindings/display/renesas,rzg2l-du.yaml    | 27 +++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml b/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml
index 7c84a9ecc7a7..65368649fe77 100644
--- a/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml
+++ b/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml

@@ -20,6 +20,7 @@ properties:
       - enum:
           - renesas,r9a07g043u-du # RZ/G2UL
           - renesas,r9a07g044-du # RZ/G2{L,LC}
+          - renesas,r9a08g046-du # RZ/G3L
           - renesas,r9a09g057-du # RZ/V2H(P)
           - renesas,r9a09g077-du # RZ/T2H
       - items:

@@ -65,7 +66,7 @@ properties:
       model-dependent. Each port shall have a single endpoint.
 
     patternProperties:
-      "^port@[0-1]$":
+      "^port@[0-2]$":
         $ref: /schemas/graph.yaml#/properties/port
         unevaluatedProperties: false
 

@@ -88,7 +89,6 @@ required:
   - clocks
   - clock-names
   - power-domains
-  - ports
   - renesas,vsps
 
 additionalProperties: false

@@ -108,6 +108,7 @@ allOf:
             port@0:
               description: DPI
             port@1: false
+            port@2: false
 
           required:
             - port@0

@@ -124,10 +125,31 @@ allOf:
               description: DSI
             port@1:
               description: DPI
+            port@2: false
 
           required:
             - port@0
             - port@1
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: renesas,r9a08g046-du
+    then:
+      properties:
+        port:
+          properties:
+            endpoint@0:
+              description: DSI
+            endpoint@1:
+              description: DPI
+            endpoint@2:
+              description: LVDS

+
+          required:
+            - port@0
+            - port@1
+            - port@2
   - if:
       properties:
         compatible:

@@ -140,6 +162,7 @@ allOf:
             port@0:
               description: DSI
             port@1: false
+            port@2: false
 
           required:
             - port@0

-- 
2.43.0