Re: [PATCH 1/2] media: dt-bindings: media: i2c: document OV4689 DT bindings

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Hi Mikhail,

Thanks for the patch.

On Tue, Jul 12, 2022 at 05:19:09PM +0300, Mikhail Rudenko wrote:
> Add device-tree binding documentation for OV4689 image sensor driver,
> and the relevant MAINTAINERS entries.
> 
> Signed-off-by: Mikhail Rudenko <mike.rudenko@xxxxxxxxx>
> ---
>  .../bindings/media/i2c/ovti,ov4689.yaml       | 122 ++++++++++++++++++
>  MAINTAINERS                                   |   7 +
>  2 files changed, 129 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/i2c/ovti,ov4689.yaml
> 
> diff --git a/Documentation/devicetree/bindings/media/i2c/ovti,ov4689.yaml b/Documentation/devicetree/bindings/media/i2c/ovti,ov4689.yaml
> new file mode 100644
> index 000000000000..6bdebe5862b4
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/i2c/ovti,ov4689.yaml
> @@ -0,0 +1,122 @@
> +# 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 Sensor Device Tree Bindings
> +
> +maintainers:
> +  - Mikhail Rudenko <mike.rudenko@xxxxxxxxx>
> +
> +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:
> +    maxItems: 1
> +
> +  clock-names:
> +    description:
> +      External clock for the sensor.
> +    items:
> +      - const: xclk
> +
> +  dovdd-supply:
> +    description:
> +      Definition of the regulator used as Digital I/O voltage supply.
> +
> +  avdd-supply:
> +    description:
> +      Definition of the regulator used as Analog voltage supply.
> +
> +  dvdd-supply:
> +    description:
> +      Definition of the regulator used as Digital core voltage supply.
> +
> +  powerdown-gpios:
> +    maxItems: 1
> +    description:
> +      Reference to the GPIO connected to the powerdown pin (active low).
> +
> +  reset-gpios:
> +    maxItems: 1
> +    description:
> +      Reference to the 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

The number of lanes is needed, please require data-lanes property here (as
well as add it to the example).

> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - dovdd-supply
> +  - avdd-supply
> +  - dvdd-supply
> +  - powerdown-gpios
> +  - reset-gpios
> +  - 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>;
> +            clock-names = "xclk";
> +
> +            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>;
> +                };
> +            };
> +        };
> +    };
> +
> +...
> diff --git a/MAINTAINERS b/MAINTAINERS
> index f468864fd268..63c4844f26e6 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -14523,6 +14523,13 @@ 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@xxxxxxxxx>
> +L:	linux-media@xxxxxxxxxxxxxxx
> +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@xxxxxxxxx>
>  L:	linux-media@xxxxxxxxxxxxxxx

-- 
Regards,

Sakari Ailus



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