[PATCH v2] dt-bindings: samsung,mipi-dsim: Use port-base reference

[Fabio Estevam]

From: Fabio Estevam <festevam at denx.de>

Use port-base reference for port at 1.

This fixes the following schema warning:

imx8mp-dhcom-pdk3.dtb: dsi at 32e60000: ports:port at 1:endpoint: Unevaluated properties are not allowed ('data-lanes' was unexpected)
>From schema: Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml

Fixes: 1f0d40d88f7a ("dt-bindings: bridge: Convert Samsung MIPI DSIM bridge to yaml")

Signed-off-by: Fabio Estevam <festevam at denx.de>
---
Changes since v1:
- Only changed port at 1.
- Used Documentation/devicetree/bindings/display/bridge/renesas,dsi.yaml as reference. (Thanks Marek for the suggestion!)

To reproduce the original problem against linux-next 20230531:

- Enable the mipi_dsi node on imx8mp-dhcom-som.dtsi

 &mipi_dsi {
        samsung,burst-clock-frequency = <160000000>;
        samsung,esc-clock-frequency = <10000000>;
+       status = "okay";
 
        ports {
                port at 1 {

$ make CHECK_DTBS=y DT_SCHEMA_FILES=samsung,mipi-dsim.yaml freescale/imx8mp-dhcom-pdk3.dtb
  UPD     include/config/kernel.release
  LINT    Documentation/devicetree/bindings
  CHKDT   Documentation/devicetree/bindings/processed-schema.json
  SCHEMA  Documentation/devicetree/bindings/processed-schema.json
  DTC_CHK arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dtb
arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dtb: dsi at 32e60000: ports:port at 1:endpoint: Unevaluated properties are not allowed ('data-lanes' was unexpected)
>From schema: Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml

 .../devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml  | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml b/Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml
index 06b6c44d4641..4ed7a799ba26 100644
--- a/Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml
@@ -103,7 +103,8 @@ properties:
           specified.
 
       port at 1:
-        $ref: /schemas/graph.yaml#/properties/port
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
         description:
           DSI output port node to the panel or the next bridge
           in the chain.
-- 
2.34.1