Re: [PATCH] media: dt-bindings: ov5645: Convert OV5645 binding to a schema

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On Tue, Sep 13, 2022 at 05:02:24PM +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> 
> Convert the simple OV5645 Device Tree binding to json-schema.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> ---
>  .../devicetree/bindings/media/i2c/ov5645.txt  |  54 --------
>  .../bindings/media/i2c/ovti,ov5645.yaml       | 119 ++++++++++++++++++
>  2 files changed, 119 insertions(+), 54 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/media/i2c/ov5645.txt
>  create mode 100644 Documentation/devicetree/bindings/media/i2c/ovti,ov5645.yaml
> 
> diff --git a/Documentation/devicetree/bindings/media/i2c/ov5645.txt b/Documentation/devicetree/bindings/media/i2c/ov5645.txt
> deleted file mode 100644
> index 72ad992f77be..000000000000
> --- a/Documentation/devicetree/bindings/media/i2c/ov5645.txt
> +++ /dev/null
> @@ -1,54 +0,0 @@
> -* Omnivision 1/4-Inch 5Mp CMOS Digital Image Sensor
> -
> -The Omnivision OV5645 is a 1/4-Inch CMOS active pixel digital image sensor with
> -an active array size of 2592H x 1944V. It is programmable through a serial I2C
> -interface.
> -
> -Required Properties:
> -- compatible: Value should be "ovti,ov5645".
> -- clocks: Reference to the xclk clock.
> -- clock-names: Should be "xclk".
> -- clock-frequency: Frequency of the xclk clock.
> -- enable-gpios: Chip enable GPIO. Polarity is GPIO_ACTIVE_HIGH. This corresponds
> -  to the hardware pin PWDNB which is physically active low.
> -- reset-gpios: Chip reset GPIO. Polarity is GPIO_ACTIVE_LOW. This corresponds to
> -  the hardware pin RESETB.
> -- vdddo-supply: Chip digital IO regulator.
> -- vdda-supply: Chip analog regulator.
> -- vddd-supply: Chip digital core regulator.
> -
> -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.
> -
> -Example:
> -
> -	&i2c1 {
> -		...
> -
> -		ov5645: ov5645@3c {
> -			compatible = "ovti,ov5645";
> -			reg = <0x3c>;
> -
> -			enable-gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
> -			reset-gpios = <&gpio5 20 GPIO_ACTIVE_LOW>;
> -			pinctrl-names = "default";
> -			pinctrl-0 = <&camera_rear_default>;
> -
> -			clocks = <&clks 200>;
> -			clock-names = "xclk";
> -			clock-frequency = <24000000>;
> -
> -			vdddo-supply = <&camera_dovdd_1v8>;
> -			vdda-supply = <&camera_avdd_2v8>;
> -			vddd-supply = <&camera_dvdd_1v2>;
> -
> -			port {
> -				ov5645_ep: endpoint {
> -					clock-lanes = <1>;
> -					data-lanes = <0 2>;
> -					remote-endpoint = <&csi0_ep>;
> -				};
> -			};
> -		};
> -	};
> diff --git a/Documentation/devicetree/bindings/media/i2c/ovti,ov5645.yaml b/Documentation/devicetree/bindings/media/i2c/ovti,ov5645.yaml
> new file mode 100644
> index 000000000000..7f407c988f87
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/i2c/ovti,ov5645.yaml
> @@ -0,0 +1,119 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/i2c/ovti,ov5645.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: OmniVision OV5645 Image Sensor Device Tree Bindings
> +
> +maintainers:
> +  - Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> +
> +allOf:
> +  - $ref: /schemas/media/video-interface-devices.yaml#

What are you using from here?

(Answer below)

> +
> +properties:
> +  compatible:
> +    const: ovti,ov5645
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    description: XCLK Input Clock
> +
> +  clock-names:
> +    const: xclk
> +
> +  clock-frequency:
> +    description: Frequency of the xclk clock in Hz.
> +
> +  vdda-supply:
> +    description: Analog voltage supply, 2.8 volts
> +
> +  vddd-supply:
> +    description: Digital core voltage supply, 1.5 volts
> +
> +  vdddo-supply:
> +    description: Digital I/O voltage supply, 1.8 volts
> +
> +  enable-gpios:
> +    maxItems: 1
> +    description:
> +      Reference to the GPIO connected to the PWDNB pin, if any.
> +
> +  reset-gpios:
> +    maxItems: 1
> +    description:
> +      Reference to the GPIO connected to the RESETB pin, if any.
> +
> +  port:
> +    description: Digital Output Port
> +    $ref: /schemas/graph.yaml#/$defs/port-base
> +    additionalProperties: false
> +
> +    properties:
> +      endpoint:
> +        $ref: /schemas/media/video-interfaces.yaml#
> +        unevaluatedProperties: false
> +
> +        properties:
> +          clock-lanes:
> +            const: 0
> +
> +          bus-type:
> +            const: 4
> +
> +          data-lanes:
> +            minItems: 1
> +            maxItems: 2
> +            items:
> +              enum: [1, 2]
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - clock-frequency
> +  - vdda-supply
> +  - vddd-supply
> +  - vdddo-supply
> +  - enable-gpios
> +  - reset-gpios
> +  - port
> +
> +additionalProperties: false

You are not because this prevents it. Either remove the ref or use 
unevaluatedProperties.

Rob



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