dt-bindings: serial: sh-sci: Document r8a78000 bindings

R-Car X5H (R8A78000) SoC has the R-Car Gen5 compatible SCIF and
HSCIF ports, so document the SoC specific bindings.

[Kuninori: tidyup for upstreaming]

Signed-off-by: Nghia Nguyen <nghia.nguyen.jg@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: "Rob Herring (Arm)" <robh@kernel.org>
Link: https://lore.kernel.org/r/87ecuxdggq.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: Nghia Nguyen

Documentation/devicetree/bindings/serial/renesas,hscif.yaml

@@ -63,6 +63,12 @@ properties:
           - const: renesas,rcar-gen4-hscif # R-Car Gen4
           - const: renesas,hscif           # generic HSCIF compatible UART
 
+      - items:
+          - enum:
+              - renesas,hscif-r8a78000     # R-Car X5H
+          - const: renesas,rcar-gen5-hscif # R-Car Gen5
+          - const: renesas,hscif           # generic HSCIF compatible UART
+
   reg:
     maxItems: 1
 
@@ -120,6 +126,7 @@ if:
           - renesas,rcar-gen2-hscif
           - renesas,rcar-gen3-hscif
           - renesas,rcar-gen4-hscif
+          - renesas,rcar-gen5-hscif
 then:
   required:
     - resets

Documentation/devicetree/bindings/serial/renesas,scif.yaml

@@ -70,6 +70,12 @@ properties:
           - const: renesas,rcar-gen4-scif # R-Car Gen4
           - const: renesas,scif           # generic SCIF compatible UART
 
+      - items:
+          - enum:
+              - renesas,scif-r8a78000     # R-Car X5H
+          - const: renesas,rcar-gen5-scif # R-Car Gen5
+          - const: renesas,scif           # generic SCIF compatible UART
+
       - items:
           - enum:
               - renesas,scif-r9a07g044      # RZ/G2{L,LC}
@@ -174,6 +180,7 @@ allOf:
               - renesas,rcar-gen2-scif
               - renesas,rcar-gen3-scif
               - renesas,rcar-gen4-scif
+              - renesas,rcar-gen5-scif
               - renesas,scif-r9a07g044
               - renesas,scif-r9a09g057
     then: