dt-bindings: serial: renesas,hscif: Document r8a779g0 bindings

R-Car V4H (R8A779G0) SoC has the R-Car Gen4 compatible HSCIF ports,
so document the SoC specific bindings.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220425064201.459633-4-yoshihiro.shimoda.uh@renesas.com
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/Documentation/devicetree/bindings/serial/renesas,hscif.yaml b/Documentation/devicetree/bindings/serial/renesas,hscif.yaml
index ee9804c..d688a07 100644 (file)
--- a/Documentation/devicetree/bindings/serial/renesas,hscif.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,hscif.yaml
@@ -55,6 +55,12 @@ properties:
           - const: renesas,rcar-gen3-hscif # R-Car Gen3 and RZ/G2
           - const: renesas,hscif           # generic HSCIF compatible UART
 
+      - items:
+          - enum:
+              - renesas,hscif-r8a779g0     # R-Car V4H
+          - const: renesas,rcar-gen4-hscif # R-Car Gen4
+          - const: renesas,hscif           # generic HSCIF compatible UART
+
   reg:
     maxItems: 1
 
@@ -113,6 +119,7 @@ if:
         enum:
           - renesas,rcar-gen2-hscif
           - renesas,rcar-gen3-hscif
+          - renesas,rcar-gen4-hscif
 then:
   required:
     - resets