[PATCH 2/2] media: dt-bindings: media: i2c: Document GC08A3 bindings

[Zhi Mao <zhi.mao@mediatek.com>]

Add YAML device tree binding for GC08A3 CMOS image sensor,
and the relevant MAINTAINERS entries.

Signed-off-by: Zhi Mao <zhi.mao@mediatek.com>
---
 .../bindings/media/i2c/galaxycore,gc08a3.yaml | 127 ++++++++++++++++++
 .../devicetree/bindings/vendor-prefixes.yaml  |   2 +
 2 files changed, 129 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/i2c/galaxycore,gc08a3.yaml

diff --git a/Documentation/devicetree/bindings/media/i2c/galaxycore,gc08a3.yaml b/Documentation/devicetree/bindings/media/i2c/galaxycore,gc08a3.yaml
new file mode 100644
index 000000000000..1802ff1c8a12
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/galaxycore,gc08a3.yaml
@@ -0,0 +1,127 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (c) 2020 MediaTek Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/galaxycore,gc08a3.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: GalaxyCore gc08a3 1/4" 8M Pixel MIPI CSI-2 sensor
+
+maintainers:
+  - Zhi Mao <zhi.mao@mediatek.com>
+
+description:
+  The gc08a3 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,gc08a3
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    description:
+      External clock for the sensor.
+    maxItems: 1
+
+  clock-frequency:
+    description:
+      Frequency of the clock in Hz.
+
+  dovdd-supply: true
+
+  avdd-supply: true
+
+  dvdd-supply: true
+
+  enable-gpios:
+    description: Reference to the GPIO connected to the RESETB pin. Active low.
+    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
+  - clock-names
+  - clock-frequency
+  - dovdd-supply
+  - avdd-supply
+  - dvdd-supply
+  - enable-gpios
+  - port
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        sensor0@31 {
+            status = "okay";
+            compatible = "galaxycore,gc08a3";
+            reg = <0x31>;
+
+            clocks = <&gc08a3_clk>;
+            clock-names = "xvclk";
+            clock-frequency = <24000000>;
+
+            enable-gpios = <&pio 19 GPIO_ACTIVE_HIGH>;
+
+            avdd-supply = <&gc08a3_avdd>;
+            dovdd-supply = <&ogc08a3_dovdd>;
+            dvdd-supply = <&gc08a3_dvdd>;
+
+            port {
+                sensor0_out_2: endpoint {
+                    data-lanes = <1 2 3 4>;
+                    link-frequencies = /bits/ 64 <336000000 207000000>;
+                    remote-endpoint = <&seninf_csi_port_0_in_2>;
+                };
+            };
+        };
+
+    };
+
+...
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index b752f8902367..1a16a94fb202 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -502,6 +502,8 @@ patternProperties:
     description: Fujitsu Ltd.
   "^fxtec,.*":
     description: FX Technology Ltd.
+  "^galaxycore,.*":
+    description: GalaxyCore Inc.
   "^gardena,.*":
     description: GARDENA GmbH
   "^gateway,.*":
-- 
2.25.1