[PATCH v7 1/2] dt-binding: media: document ON Semi AR0521 sensor bindings

Krzysztof Hałasa
2022-01-03T13:32:07Z

This file documents DT bindings for the AR0521 camera sensor driver.

Signed-off-by: Krzysztof Hałasa <khalasa@piap.pl>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rob Herring <robh@kernel.org>

diff --git
a/Documentation/devicetree/bindings/media/i2c/onnn,ar0521.yaml
b/Documentation/devicetree/bindings/media/i2c/onnn,ar0521.yaml
new file mode 100644
index 000000000000..b617cc5c6a9f
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/onnn,ar0521.yaml
@@ -0,0 +1,112 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/onnn,ar0521.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ON Semiconductor AR0521 MIPI CSI-2 sensor
+
+maintainers:
+ - Krzysztof Hałasa <khalasa@piap.pl>
+
+description: |-
+ The AR0521 is a raw CMOS image sensor with MIPI CSI-2 and
+ I2C-compatible control interface.
+
+properties:
+ compatible:
+ const: onnn,ar0521
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: extclk
+
+ vaa-supply:
+ description:
+ Definition of the regulator used as analog (2.7 V) voltage supply.
+
+ vdd-supply:
+ description:
+ Definition of the regulator used as digital core (1.2 V) voltage supply.
+
+ vdd_io-supply:
+ description:
+ Definition of the regulator used as digital I/O (1.8 V) voltage supply.
+
+ reset-gpios:
+ description: reset GPIO, usually active low
+ maxItems: 1
+
+ port:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description: |
+ Video output port.
+
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ bus-type:
+ const: 4
+ data-lanes:
+ anyOf:
+ - items:
+ - const: 1
+ - items:
+ - const: 1
+ - const: 2
+ - items:
+ - const: 1
+ - const: 2
+ - const: 3
+ - const: 4
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - vaa-supply
+ - vdd-supply
+ - vdd_io-supply
+ - port
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/clock/imx6qdl-clock.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ar0521: camera-sensor@36 {
+ compatible = "onnn,ar0521";
+ reg = <0x36>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_mipi_camera>;
+ clocks = <&clks IMX6QDL_CLK_CKO>;
+ clock-names = "extclk";
+ reset-gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
+ vaa-supply = <&reg_2p7v>;
+ vdd-supply = <&reg_1p2v>;
+ vdd_io-supply = <&reg_1p8v>;
+
+ port {
+ mipi_camera_to_mipi_csi2: endpoint {
+ remote-endpoint = <&mipi_csi2_in>;
+ data-lanes = <1 2 3 4>;
+ };
+ };
+ };
+ };