dt-bindings: display: convert samsung AMOLED to DT Schema

For samsung there was two AMOLED panels with the same
description.
Collect them in one binding file.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200408195109.32692-21-sam@ravnborg.org

Documentation/devicetree/bindings/display/panel/samsung,amoled-mipi-dsi.yaml

+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/samsung,amoled-mipi-dsi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung AMOLED MIPI-DSI panels
+
+maintainers:
+  - Hoegeun Kwon <hoegeun.kwon@samsung.com>
+
+allOf:
+  - $ref: panel-common.yaml#
+
+properties:
+  compatible:
+    enum:
+        # Samsung S6E63J0X03 1.63" 320x320 AMOLED panel
+      - samsung,s6e63j0x03
+        # Samsung S6E3HA2 5.7" 1440x2560 AMOLED panel
+      - samsung,s6e3ha2
+        # Samsung S6E3HF2 5.65" 1600x2560 AMOLED panel
+      - samsung,s6e3hf2
+
+  reg: true
+  reset-gpios: true
+  enable-gpios: true
+  te-gpios: true
+
+  vdd3-supply:
+    description: I/O voltage supply
+
+  vci-supply:
+    description: voltage supply for analog circuits
+
+required:
+  - compatible
+  - reg
+  - vdd3-supply
+  - vci-supply
+  - reset-gpios
+  - enable-gpios
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    dsi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        panel@0 {
+            compatible = "samsung,s6e3ha2";
+            reg = <0>;
+            vdd3-supply = <&ldo27_reg>;
+            vci-supply = <&ldo28_reg>;
+            reset-gpios = <&gpg0 0 GPIO_ACTIVE_LOW>;
+            enable-gpios = <&gpf1 5 GPIO_ACTIVE_HIGH>;
+            te-gpios = <&gpf1 3 GPIO_ACTIVE_HIGH>;
+        };
+    };
+
+...

Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt

-Samsung S6E3HA2 5.7" 1440x2560 AMOLED panel
-Samsung S6E3HF2 5.65" 1600x2560 AMOLED panel
-
-Required properties:
-  - compatible: should be one of:
-    "samsung,s6e3ha2",
-    "samsung,s6e3hf2".
-  - reg: the virtual channel number of a DSI peripheral
-  - vdd3-supply: I/O voltage supply
-  - vci-supply: voltage supply for analog circuits
-  - reset-gpios: a GPIO spec for the reset pin (active low)
-  - enable-gpios: a GPIO spec for the panel enable pin (active high)
-
-Optional properties:
-  - te-gpios: a GPIO spec for the tearing effect synchronization signal
-    gpio pin (active high)
-
-Example:
-&dsi {
-	...
-
-	panel@0 {
-		compatible = "samsung,s6e3ha2";
-		reg = <0>;
-		vdd3-supply = <&ldo27_reg>;
-		vci-supply = <&ldo28_reg>;
-		reset-gpios = <&gpg0 0 GPIO_ACTIVE_LOW>;
-		enable-gpios = <&gpf1 5 GPIO_ACTIVE_HIGH>;
-		te-gpios = <&gpf1 3 GPIO_ACTIVE_HIGH>;
-	};
-};

Documentation/devicetree/bindings/display/panel/samsung,s6e63j0x03.txt

-Samsung S6E63J0X03 1.63" 320x320 AMOLED panel (interface: MIPI-DSI command mode)
-
-Required properties:
-  - compatible: "samsung,s6e63j0x03"
-  - reg: the virtual channel number of a DSI peripheral
-  - vdd3-supply: I/O voltage supply
-  - vci-supply: voltage supply for analog circuits
-  - reset-gpios: a GPIO spec for the reset pin (active low)
-  - te-gpios: a GPIO spec for the tearing effect synchronization signal
-    gpio pin (active high)
-
-Example:
-&dsi {
-	...
-
-	panel@0 {
-		compatible = "samsung,s6e63j0x03";
-		reg = <0>;
-		vdd3-supply = <&ldo16_reg>;
-		vci-supply = <&ldo20_reg>;
-		reset-gpios = <&gpe0 1 GPIO_ACTIVE_LOW>;
-		te-gpios = <&gpx0 6 GPIO_ACTIVE_HIGH>;
-	};
-};