diff --git a/Documentation/devicetree/bindings/serial/renesas,scif.yaml b/Documentation/devicetree/bindings/serial/renesas,scif.yaml
index 21fbfa880e29..df2172b7d509 100644
--- a/Documentation/devicetree/bindings/serial/renesas,scif.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,scif.yaml
@@ -64,6 +64,12 @@ properties:
           - const: renesas,rcar-gen3-scif # R-Car Gen3 and RZ/G2
           - const: renesas,scif           # generic SCIF compatible UART
 
+      - items:
+          - enum:
+              - renesas,scif-r8a779f0     # R-Car S4-8
+          - const: renesas,rcar-gen4-scif # R-Car Gen4
+          - const: renesas,scif           # generic SCIF compatible UART
+
       - items:
           - enum:
               - renesas,scif-r9a07g044      # RZ/G2{L,LC}
@@ -153,6 +159,7 @@ if:
         enum:
           - renesas,rcar-gen2-scif
           - renesas,rcar-gen3-scif
+          - renesas,rcar-gen4-scif
           - renesas,scif-r9a07g044
 then:
   required: