[PATCH] dt-bindings: PCI: rcar-pci-host: Document missing R-Car H1 support

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scripts/checkpatch.pl -f drivers/pci/controller/pcie-rcar-host.c:

    WARNING: DT compatible string "renesas,pcie-r8a7779" appears un-documented -- check ./Documentation/devicetree/bindings/
    #853: FILE: drivers/pci/controller/pcie-rcar-host.c:853:
    +	{ .compatible = "renesas,pcie-r8a7779",

Re-add the compatible value for R-Car H1, which was lost during the
json-schema conversion.  Make the "resets" property optional on R-Car
H1, as it is not present yet on R-Car Gen1 SoCs.

Fixes: 0d69ce3c2c63d4db ("dt-bindings: PCI: rcar-pci-host: Convert bindings to json-schema")
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
This was never enabled in the upstream r8a7779.dtsi, but the Linux
driver does support it.
---
 .../devicetree/bindings/pci/rcar-pci-host.yaml       | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pci/rcar-pci-host.yaml b/Documentation/devicetree/bindings/pci/rcar-pci-host.yaml
index 4a2bcc0158e2d49a..8fdfbc763d704532 100644
--- a/Documentation/devicetree/bindings/pci/rcar-pci-host.yaml
+++ b/Documentation/devicetree/bindings/pci/rcar-pci-host.yaml
@@ -17,6 +17,7 @@ allOf:
 properties:
   compatible:
     oneOf:
+      - const: renesas,pcie-r8a7779       # R-Car H1
       - items:
           - enum:
               - renesas,pcie-r8a7742      # RZ/G1H
@@ -74,7 +75,16 @@ required:
   - clocks
   - clock-names
   - power-domains
-  - resets
+
+if:
+  not:
+    properties:
+      compatible:
+        contains:
+          const: renesas,pcie-r8a7779
+then:
+  required:
+    - resets
 
 unevaluatedProperties: false
 
-- 
2.25.1




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