dt-bindings: display: convert seiko,43wvf1g to DT Schema

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Marco Franchi <marco.franchi@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: Marco Franchi <marco.franchi@nxp.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200408195109.32692-34-sam@ravnborg.org

Documentation/devicetree/bindings/display/panel/seiko,43wvf1g.txt

-Seiko Instruments Inc. 4.3" WVGA (800 x RGB x 480) TFT with Touch-Panel
-
-Required properties:
-- compatible: should be "sii,43wvf1g".
-- "dvdd-supply": 3v3 digital regulator.
-- "avdd-supply": 5v analog regulator.
-
-Optional properties:
-- backlight: phandle for the backlight control.
-
-Example:
-
-	panel {
-		compatible = "sii,43wvf1g";
-		backlight = <&backlight_display>;
-		dvdd-supply = <&reg_lcd_3v3>;
-		avdd-supply = <&reg_lcd_5v>;
-		port {
-			panel_in: endpoint {
-				remote-endpoint = <&display_out>;
-			};
-		};
-	};

Documentation/devicetree/bindings/display/panel/seiko,43wvf1g.yaml

+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/seiko,43wvf1g.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Seiko Instruments Inc. 4.3" WVGA (800 x RGB x 480) TFT with Touch-Panel
+
+maintainers:
+  - Marco Franchi <marco.franchi@nxp.com>
+
+allOf:
+  - $ref: panel-common.yaml#
+
+properties:
+  compatible:
+    const: sii,43wvf1g
+
+  backlight: true
+  port: true
+
+  dvdd-supply:
+    description: 3v3 digital regulator
+
+  avdd-supply:
+    description: 5v analog regulator
+
+required:
+  - compatible
+  - dvdd-supply
+  - avdd-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    panel {
+        compatible = "sii,43wvf1g";
+
+        backlight = <&backlight_display>;
+        dvdd-supply = <&reg_lcd_3v3>;
+        avdd-supply = <&reg_lcd_5v>;
+        port {
+            panel_in: endpoint {
+                remote-endpoint = <&display_out>;
+            };
+        };
+    };
+
+...