linux-kernel - Re: [PATCH 1/2] media: ov2680: dt: Add bindings for OV2680

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Date:   Thu, 22 Feb 2018 12:59:32 +0200
From:   Sakari Ailus <sakari.ailus@...ux.intel.com>
To:     Rui Miguel Silva <rmfrfs@...il.com>
Cc:     mchehab@...nel.org, hverkuil@...all.nl,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        Ryan Harkin <ryan.harkin@...aro.org>,
        Rui Miguel Silva <rui.silva@...aro.org>,
        devicetree@...r.kernel.org
Subject: Re: [PATCH 1/2] media: ov2680: dt: Add bindings for OV2680

Hi Rui,

Thanks for the patchset.

Could you use "dt: bindings: " prefix in the subject?

On Thu, Feb 22, 2018 at 10:23:37AM +0000, Rui Miguel Silva wrote:
> Add device tree binding documentation for the OV5640 camera sensor.
> 
> CC: devicetree@...r.kernel.org
> Signed-off-by: Rui Miguel Silva <rui.silva@...aro.org>
> ---
>  .../devicetree/bindings/media/i2c/ov2680.txt       | 34 ++++++++++++++++++++++
>  1 file changed, 34 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/i2c/ov2680.txt
> 
> diff --git a/Documentation/devicetree/bindings/media/i2c/ov2680.txt b/Documentation/devicetree/bindings/media/i2c/ov2680.txt
> new file mode 100644
> index 000000000000..f9dc63ce5044
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/i2c/ov2680.txt
> @@ -0,0 +1,34 @@
> +* Omnivision OV2680 MIPI CSI-2 sensor
> +
> +Required Properties:
> +- compatible: should be "ovti,ov2680"
> +- clocks: reference to the xvclk input clock.
> +- clock-names: should be "xvclk".
> +
> +Optional Properties:
> +- powerdown-gpios: reference to the GPIO connected to the powerdown pin,
> +		     if any. This is an active high signal to the OV2680.
> +
> +The device node must contain one 'port' child node for its digital output

Please add that the port contains a single endpoint as well.

> +video port, in accordance with the video interface bindings defined in
> +Documentation/devicetree/bindings/media/video-interfaces.txt.

Please list required and optional endpoint properties as well.

> +
> +Example:
> +
> +&i2c2 {
> +	ov2680: camera-sensor@36 {
> +		compatible = "ovti,ov2680";
> +		reg = <0x36>;
> +		clocks = <&osc>;
> +		clock-names = "xvclk";
> +		powerdown-gpios = <&gpio1 3 GPIO_ACTIVE_HIGH>;
> +
> +		port {
> +			ov2680_mipi_ep: endpoint {
> +				remote-endpoint = <&mipi_sensor_ep>;
> +				clock-lanes = <0>;
> +				data-lanes = <1>;
> +			};
> +		};
> +	};
> +};

-- 
Regards,

Sakari Ailus
sakari.ailus@...ux.intel.com