dt-bindings: display: convert innolux,p097pfg to DT Schema

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: Lin Huang <hl@rock-chips.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200408195109.32692-11-sam@ravnborg.org

Documentation/devicetree/bindings/display/panel/innolux,p097pfg.txt

-Innolux P097PFG 9.7" 1536x2048 TFT LCD panel
-
-Required properties:
-- compatible: should be "innolux,p097pfg"
-- reg: DSI virtual channel of the peripheral
-- avdd-supply: phandle of the regulator that provides positive voltage
-- avee-supply: phandle of the regulator that provides negative voltage
-- enable-gpios: panel enable gpio
-
-Optional properties:
-- backlight: phandle of the backlight device attached to the panel
-
-Example:
-
-	&mipi_dsi {
-		panel@0 {
-			compatible = "innolux,p079zca";
-			reg = <0>;
-			avdd-supply = <...>;
-			avee-supply = <...>;
-			backlight = <&backlight>;
-			enable-gpios = <&gpio1 13 GPIO_ACTIVE_HIGH>;
-		};
-	};

Documentation/devicetree/bindings/display/panel/innolux,p097pfg.yaml

+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/innolux,p097pfg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Innolux P097PFG 9.7" 1536x2048 TFT LCD panel
+
+maintainers:
+  - Lin Huang <hl@rock-chips.com>
+
+allOf:
+  - $ref: panel-common.yaml#
+
+properties:
+  compatible:
+    const: innolux,p097pfg
+
+  backlight: true
+  enable-gpios: true
+  reg: true
+
+  avdd-supply:
+    description: The regulator that provides positive voltage
+
+  avee-supply:
+    description: The regulator that provides negative voltage
+
+required:
+  - compatible
+  - reg
+  - avdd-supply
+  - avee-supply
+  - enable-gpios
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    dsi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        panel@0 {
+            compatible = "innolux,p097pfg";
+            reg = <0>;
+            avdd-supply = <&avdd>;
+            avee-supply = <&avee>;
+            backlight = <&backlight>;
+            enable-gpios = <&gpio1 13 GPIO_ACTIVE_HIGH>;
+        };
+    };
+
+...