dt-bindings: media: i2c: Add OmniVision OV6211 image sensor

Add device tree bindings documentation for OmniVision OV6211 image
sensor.

Reviewed-by: Rob Herring (Arm) <[e-mail]>
Signed-off-by: Vladimir Zapolskiy <[e-mail]>
Signed-off-by: Sakari Ailus <[e-mail]>
Signed-off-by: Hans Verkuil <[e-mail]>

Documentation/devicetree/bindings/media/i2c/ovti,ov6211.yaml

···
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/ovti,ov6211.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: OmniVision OV6211 Image Sensor
+
+description:
+  OmniVision OV6211 image sensor is a high performance monochrome image
+  sensor. The sensor is controlled over a serial camera control bus
+  protocol (SCCB), the widest supported output image frame size is 400x400
+  at 120 frames per second rate, data output format is 8/10-bit RAW
+  transferred over one-lane MIPI D-PHY interface.
+
+maintainers:
+  - Vladimir Zapolskiy <[e-mail]>
+
+allOf:
+  - $ref: /schemas/media/video-interface-devices.yaml#
+
+properties:
+  compatible:
+    const: ovti,ov6211
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    description: XVCLK supply clock, 6MHz to 27MHz frequency.
+    maxItems: 1
+
+  reset-gpios:
+    description: Active low GPIO connected to XSHUTDOWN pad of the sensor.
+    maxItems: 1
+
+  strobe-gpios:
+    description: Input GPIO connected to strobe pad of the sensor.
+    maxItems: 1
+
+  avdd-supply:
+    description: Analogue voltage supply, 2.6 to 3.0 volts.
+
+  dovdd-supply:
+    description: Digital I/O voltage supply, 1.8 volts.
+
+  dvdd-supply:
+    description: Digital core voltage supply.
+
+  port:
+    $ref: /schemas/graph.yaml#/$defs/port-base
+    additionalProperties: false
+
+    properties:
+      endpoint:
+        $ref: /schemas/media/video-interfaces.yaml#
+        unevaluatedProperties: false
+
+        required:
+          - link-frequencies
+
+required:
+  - compatible
+  - reg
+  - port
+
+unevaluatedProperties: false
+
+examples:
+  - |
+      #include <dt-bindings/gpio/gpio.h>
+
+      i2c {
+          #address-cells = <1>;
+          #size-cells = <0>;
+
+          camera@60 {
+              compatible = "ovti,ov6211";
+              reg = <0x60>;
+              clocks = <&camera_clk 0>;
+              assigned-clocks = <&camera_clk 0>;
+              assigned-clock-rates = <24000000>;
+              reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
+              avdd-supply = <&vreg_2p8>;
+              dovdd-supply = <&vreg_1p8>;
+              dvdd-supply = <&vreg_1p2>;
+
+              port {
+                  endpoint {
+                      link-frequencies = /bits/ 64 <480000000>;
+                      remote-endpoint = <&mipi_csi2_ep>;
+                  };
+              };
+          };
+      };
+...