media: dt-bindings: i2c: add GalaxyCore GC05A2 image sensor

Add YAML device tree binding for GC05A2 CMOS image sensor,
and the relevant MAINTAINERS entries.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Zhi Mao <zhi.mao@mediatek.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

Documentation/devicetree/bindings/media/i2c/galaxycore,gc05a2.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (c) 2023 MediaTek Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/galaxycore,gc05a2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: GalaxyCore gc05a2 1/5" 5M Pixel MIPI CSI-2 sensor
+
+maintainers:
+  - Zhi Mao <zhi.mao@mediatek.com>
+
+description:
+  The gc05a2 is a raw image sensor with an MIPI CSI-2 image data
+  interface and CCI (I2C compatible) control bus. The output format
+  is raw Bayer.
+
+properties:
+  compatible:
+    const: galaxycore,gc05a2
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  dovdd-supply: true
+
+  avdd-supply: true
+
+  dvdd-supply: true
+
+  reset-gpios:
+    description: Reference to the GPIO connected to the RESETB pin.
+    maxItems: 1
+
+  port:
+    $ref: /schemas/graph.yaml#/$defs/port-base
+    additionalProperties: false
+    description:
+      Output port node, single endpoint describing the CSI-2 transmitter.
+
+    properties:
+      endpoint:
+        $ref: /schemas/media/video-interfaces.yaml#
+        unevaluatedProperties: false
+
+        properties:
+          data-lanes:
+            oneOf:
+              - items:
+                  - const: 1
+                  - const: 2
+                  - const: 3
+                  - const: 4
+              - items:
+                  - const: 1
+                  - const: 2
+
+          link-frequencies: true
+
+        required:
+          - data-lanes
+          - link-frequencies
+
+    required:
+      - endpoint
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - dovdd-supply
+  - avdd-supply
+  - dvdd-supply
+  - reset-gpios
+  - port
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        sensor@37 {
+            compatible =  "galaxycore,gc05a2";
+            reg = <0x37>;
+
+            clocks = <&gc05a2_clk>;
+
+            reset-gpios = <&pio 21 GPIO_ACTIVE_LOW>;
+
+            avdd-supply = <&gc05a2_avdd>;
+            dovdd-supply = <&gc05a2_dovdd>;
+            dvdd-supply = <&gc05a2_dvdd>;
+
+            port {
+                sensor_out: endpoint {
+                    data-lanes = <1 2>;
+                    link-frequencies = /bits/ 64 <448000000 224000000>;
+                    remote-endpoint = <&seninf_csi_port_1_in>;
+                };
+            };
+        };
+    };
+
+...