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

Alexander Shiyan
2026-03-06T10:36:40Z

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