[RFC PATCH v3 1/2] dt-bindings: media: i2c: Add onsemi AR0234 image sensor binding

[Alexander Shiyan <eagle.alexander923@gmail.com>]

Add devicetree binding for the onsemi AR0234 CMOS image sensor.

Signed-off-by: Alexander Shiyan <eagle.alexander923@gmail.com>
---
 .../bindings/media/i2c/onnn,ar0234.yaml       | 109 ++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/i2c/onnn,ar0234.yaml

diff --git a/Documentation/devicetree/bindings/media/i2c/onnn,ar0234.yaml b/Documentation/devicetree/bindings/media/i2c/onnn,ar0234.yaml
new file mode 100644
index 000000000000..d93fa99e6535
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/onnn,ar0234.yaml
@@ -0,0 +1,109 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/onnn,ar0234.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ON Semiconductor AR0234 1/2.6-inch CMOS Digital Image Sensor
+
+description:
+  The AR0234 is a 1/2.6-inch CMOS digital image sensor with a pixel
+  array of 1940x1220 pixels, capable of 1920x1200 resolution at up
+  to 120 fps. It supports MIPI CSI-2 output with 1, 2, or 4 data lanes,
+  and raw Bayer (8/10-bit) or monochrome output.
+
+properties:
+  compatible:
+    const: onnn,ar0234cs
+
+  reg:
+    description: I2C device address
+    maxItems: 1
+
+  clocks:
+    description: Reference clock (external clock) input
+    maxItems: 1
+
+  reset-gpios:
+    description: Reset pin, usually active low (if needed)
+    maxItems: 1
+
+  vaa-supply:
+    description: Analog (2.8V) supply regulator
+
+  vdd-supply:
+    description: Digital Core (1.2V) supply regulator
+
+  vddio-supply:
+    description: I/O (1.8V-2.8V) supply regulator
+
+  port:
+    $ref: /schemas/graph.yaml#/$defs/port-base
+    description: CSI-2 transmitter port
+    additionalProperties: false
+    properties:
+      endpoint:
+        $ref: /schemas/media/video-interfaces.yaml#
+        unevaluatedProperties: false
+        properties:
+          data-lanes:
+            description:
+              Number of MIPI CSI-2 data lanes. Supported values: 2, 4.
+            minItems: 2
+            maxItems: 4
+            items:
+              enum: [1, 2, 3, 4]
+
+          link-frequencies:
+            description:
+              Allowed MIPI link frequencies in Hz. The driver expects two
+              frequencies: one for 8-bit and one for 10-bit modes,
+              typically 360 MHz and 450 MHz, but any frequency supported
+              by the sensor may be used.
+            minItems: 2
+            maxItems: 2
+            items:
+              minimum: 360000000
+              maximum: 450000000
+
+        required:
+          - data-lanes
+          - link-frequencies
+
+    required:
+      - endpoint
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - port
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        camera@10 {
+            compatible = "onnn,ar0234cs";
+            reg = <0x10>;
+            clocks = <&clk_ext_camera>;
+
+            vaa-supply = <&reg_cam_vaa>;
+            vdd-supply = <&reg_cam_vdd>;
+            vddio-supply = <&reg_cam_vddio>;
+
+            reset-gpios = <&gpio 42 GPIO_ACTIVE_LOW>;
+
+            port {
+                ar0234_ep: endpoint {
+                    data-lanes = <1 2 3 4>;
+                    link-frequencies = /bits/ 64 <360000000 450000000>;
+                };
+            };
+        };
+    };
+...
-- 
2.52.0