dt-bindings: display: panel: document Samsung AMS561RA01 panel with S6E8AA5X01 controller

Samsung AMS561RA01 is an AMOLED panel, using the Samsung S6E8AA5X01 MIPI
DSI panel controller. Document the compatible and devicetree properties
of this hardware. It has a reset GPIO and two voltage regulators.

Acked-by: Conor Dooley <[e-mail]>
Signed-off-by: Kaustabh Chakraborty <[e-mail]>
Signed-off-by: Neil Armstrong <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

Documentation/devicetree/bindings/display/panel/samsung,s6e8aa5x01-ams561ra01.yaml

···
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/samsung,s6e8aa5x01-ams561ra01.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung AMS561RA01 panel with S6E8AA5X01 controller
+
+maintainers:
+  - Kaustabh Chakraborty <[e-mail]>
+
+allOf:
+  - $ref: panel-common.yaml#
+
+properties:
+  compatible:
+    const: samsung,s6e8aa5x01-ams561ra01
+
+  reg:
+    maxItems: 1
+
+  vdd-supply:
+    description: core voltage supply
+
+  vci-supply:
+    description: voltage supply for analog circuits
+
+  reset-gpios: true
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    dsi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        panel@0 {
+            compatible = "samsung,s6e8aa5x01-ams561ra01";
+            reg = <0>;
+
+            vdd-supply = <&panel_vdd_reg>;
+            vci-supply = <&panel_vci_reg>;
+
+            reset-gpios = <&gpd3 4 GPIO_ACTIVE_HIGH>;
+        };
+    };
+
+...