media: dt-bindings: i2c: document OV4689

Add device-tree binding documentation for OV4689 image sensor driver,
and the relevant MAINTAINERS entries.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Mikhail Rudenko <mike.rudenko@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>

Documentation/devicetree/bindings/media/i2c/ovti,ov4689.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/ovti,ov4689.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Omnivision OV4689 CMOS
+
+maintainers:
+  - Mikhail Rudenko <mike.rudenko@gmail.com>
+
+description: |
+  The Omnivision OV4689 is a high performance, 1/3-inch, 4 megapixel
+  image sensor. Ihis chip supports high frame rate speeds up to 90 fps
+  at 2688x1520 resolution. It is programmable through an I2C
+  interface, and sensor output is sent via 1/2/4 lane MIPI CSI-2
+  connection.
+
+allOf:
+  - $ref: /schemas/media/video-interface-devices.yaml#
+
+properties:
+  compatible:
+    const: ovti,ov4689
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    description:
+      External clock (XVCLK) for the sensor, 6-64 MHz
+    maxItems: 1
+
+  dovdd-supply:
+    description:
+      Digital I/O voltage supply, 1.7-3.0 V
+
+  avdd-supply:
+    description:
+      Analog voltage supply, 2.6-3.0 V
+
+  dvdd-supply:
+    description:
+      Digital core voltage supply, 1.1-1.3 V
+
+  powerdown-gpios:
+    description:
+      GPIO connected to the powerdown pin (active low)
+
+  reset-gpios:
+    maxItems: 1
+    description:
+      GPIO connected to the reset pin (active low)
+
+  orientation: true
+
+  rotation: true
+
+  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
+              - items:
+                  - const: 1
+          link-frequencies: true
+
+        required:
+          - data-lanes
+          - link-frequencies
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - dovdd-supply
+  - avdd-supply
+  - dvdd-supply
+  - port
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        ov4689: camera@36 {
+            compatible = "ovti,ov4689";
+            reg = <0x36>;
+
+            clocks = <&ov4689_clk>;
+
+            avdd-supply = <&ov4689_avdd>;
+            dovdd-supply = <&ov4689_dovdd>;
+            dvdd-supply = <&ov4689_dvdd>;
+
+            powerdown-gpios = <&pio 107 GPIO_ACTIVE_LOW>;
+            reset-gpios = <&pio 109 GPIO_ACTIVE_LOW>;
+
+            orientation = <2>;
+            rotation = <0>;
+
+            port {
+                wcam_out: endpoint {
+                    remote-endpoint = <&mipi_in_wcam>;
+                    data-lanes = <1 2 3 4>;
+                    link-frequencies = /bits/ 64 <504000000>;
+                };
+            };
+        };
+    };
+
+...

MAINTAINERS

@@ -15221,6 +15221,13 @@ S:	Maintained
 T:	git git://linuxtv.org/media_tree.git
 F:	drivers/media/i2c/ov2740.c
 
+OMNIVISION OV4689 SENSOR DRIVER
+M:	Mikhail Rudenko <mike.rudenko@gmail.com>
+L:	linux-media@vger.kernel.org
+S:	Maintained
+T:	git git://linuxtv.org/media_tree.git
+F:	Documentation/devicetree/bindings/media/i2c/ovti,ov4689.yaml
+
 OMNIVISION OV5640 SENSOR DRIVER
 M:	Steve Longerbeam <slongerbeam@gmail.com>
 L:	linux-media@vger.kernel.org