dt-bindings: display: panel: Add Himax HX83112A

Himax HX83112A is a display driver IC used to drive LCD DSI panels.
Describe it and the DJN 9A-3R063-1102B using it.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Link: https://lore.kernel.org/r/20240216-fp4-panel-v3-1-a556e4b79640@fairphone.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240216-fp4-panel-v3-1-a556e4b79640@fairphone.com

diff --git a/Documentation/devicetree/bindings/display/panel/himax,hx83112a.yaml b/Documentation/devicetree/bindings/display/panel/himax,hx83112a.yaml
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+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/himax,hx83112a.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Himax HX83112A-based DSI display panels
+
+maintainers:
+  - Luca Weiss <luca.weiss@fairphone.com>
+
+description:
+  The Himax HX83112A is a generic DSI Panel IC used to control
+  LCD panels.
+
+allOf:
+  - $ref: panel-common.yaml#
+
+properties:
+  compatible:
+    contains:
+      const: djn,9a-3r063-1102b
+
+  vdd1-supply:
+    description: Digital voltage rail
+
+  vsn-supply:
+    description: Positive source voltage rail
+
+  vsp-supply:
+    description: Negative source voltage rail
+
+  reg: true
+  port: true
+
+required:
+  - compatible
+  - reg
+  - reset-gpios
+  - vdd1-supply
+  - vsn-supply
+  - vsp-supply
+  - port
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    dsi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        panel@0 {
+            compatible = "djn,9a-3r063-1102b";
+            reg = <0>;
+
+            backlight = <&pm6150l_wled>;
+            reset-gpios = <&pm6150l_gpios 9 GPIO_ACTIVE_LOW>;
+
+            vdd1-supply = <&vreg_l1e>;
+            vsn-supply = <&pm6150l_lcdb_ncp>;
+            vsp-supply = <&pm6150l_lcdb_ldo>;
+
+            port {
+                panel_in_0: endpoint {
+                    remote-endpoint = <&dsi0_out>;
+                };
+            };
+        };
+    };
+
+...