Re: [PATCH] dt-bindings: media: imx274: Convert to json-schema

[Laurent Pinchart <laurent.pinchart@ideasonboard.com>]

Hi Jacopo,

Thank you for the patch.

On Tue, Aug 18, 2020 at 02:18:21PM +0200, Jacopo Mondi wrote:
> Convert the imx274 bindings document to json-schema and update
> the MAINTAINERS file accordingly.
> 
> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
> ---
>  .../devicetree/bindings/media/i2c/imx274.txt  | 33 ---------
>  .../devicetree/bindings/media/i2c/imx274.yaml | 69 +++++++++++++++++++

Could you rename the file to sony,imx274.yaml ? Don't forget to change
the $id.

>  MAINTAINERS                                   |  2 +-
>  3 files changed, 70 insertions(+), 34 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/media/i2c/imx274.txt
>  create mode 100644 Documentation/devicetree/bindings/media/i2c/imx274.yaml
> 
> diff --git a/Documentation/devicetree/bindings/media/i2c/imx274.txt b/Documentation/devicetree/bindings/media/i2c/imx274.txt
> deleted file mode 100644
> index 80f2e89568e1..000000000000
> --- a/Documentation/devicetree/bindings/media/i2c/imx274.txt
> +++ /dev/null
> @@ -1,33 +0,0 @@
> -* Sony 1/2.5-Inch 8.51Mp CMOS Digital Image Sensor
> -
> -The Sony imx274 is a 1/2.5-inch CMOS active pixel digital image sensor with
> -an active array size of 3864H x 2202V. It is programmable through I2C
> -interface. The I2C address is fixed to 0x1a as per sensor data sheet.
> -Image data is sent through MIPI CSI-2, which is configured as 4 lanes
> -at 1440 Mbps.
> -
> -
> -Required Properties:
> -- compatible: value should be "sony,imx274" for imx274 sensor
> -- reg: I2C bus address of the device
> -
> -Optional Properties:
> -- reset-gpios: Sensor reset GPIO
> -
> -The imx274 device node should contain one 'port' child node with
> -an 'endpoint' subnode. For further reading on port node refer to
> -Documentation/devicetree/bindings/media/video-interfaces.txt.
> -
> -Example:
> -	sensor@1a {
> -		compatible = "sony,imx274";
> -		reg = <0x1a>;
> -		#address-cells = <1>;
> -		#size-cells = <0>;
> -		reset-gpios = <&gpio_sensor 0 0>;
> -		port {
> -			sensor_out: endpoint {
> -				remote-endpoint = <&csiss_in>;
> -			};
> -		};
> -	};
> diff --git a/Documentation/devicetree/bindings/media/i2c/imx274.yaml b/Documentation/devicetree/bindings/media/i2c/imx274.yaml
> new file mode 100644
> index 000000000000..71d67466cbd8
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/i2c/imx274.yaml
> @@ -0,0 +1,69 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/i2c/imx274.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Sony 1/2.5-Inch 8.51Mp CMOS Digital Image Sensor

s/Mp/MP/

> +
> +maintainers:
> +  - Leon Luo <leonl@leopardimaging.com>
> +
> +description: -|
> +  The Sony imx274 is a 1/2.5-inch CMOS active pixel digital image sensor with

s/imx274/IMX274/

> +  an active array size of 3864H x 2202V. It is programmable through I2C
> +  interface. The I2C address is fixed to 0x1a as per sensor data sheet.

I'd drop the last sentence, and add a const: 0x1a to the reg property.

> +  Image data is sent through MIPI CSI-2, which is configured as 4 lanes
> +  at 1440 Mbps.
> +
> +properties:
> +  compatible:
> +    const: sony,imx274
> +
> +  reg:
> +    maxItems: 1
> +
> +  reset-gpios:
> +    maxItems: 1
> +
> +  port:
> +    type: object
> +    description: |
> +      The device node must contain one 'port' child node for its digital output
> +      video port, in accordance with the video interface bindings defined in
> +      Documentation/devicetree/bindings/media/video-interfaces.txt.
> +
> +    properties:
> +      endpoint:
> +        type: object
> +        properties:
> +          remote-endpoint:
> +            description: A phandle to the bus receiver's endpoint node.
> +

We probably want to add clocks and regulators, as well as data-lanes,
but that's out of scope for the conversion.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> +    additionalProperties: false
> +
> +required:
> +  - compatible
> +  - reg
> +  - port
> +
> +examples:
> +  - |
> +    i2c0 {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        imx274: camera-sensor@1a {
> +            compatible = "sony,imx274";
> +            reg = <0x1a>;
> +            reset-gpios = <&gpio_sensor 0 0>;
> +
> +            port {
> +                sensor_out: endpoint {
> +                    remote-endpoint = <&csiss_in>;
> +                };
> +            };
> +        };
> +    };
> +
> +...
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 18bc4427e6b0..6c8e98238a7b 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -15941,7 +15941,7 @@ M:	Leon Luo <leonl@leopardimaging.com>
>  L:	linux-media@vger.kernel.org
>  S:	Maintained
>  T:	git git://linuxtv.org/media_tree.git
> -F:	Documentation/devicetree/bindings/media/i2c/imx274.txt
> +F:	Documentation/devicetree/bindings/media/i2c/imx274.yaml
>  F:	drivers/media/i2c/imx274.c
> 
>  SONY IMX290 SENSOR DRIVER

-- 
Regards,

Laurent Pinchart