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Date:   Tue, 13 Feb 2018 17:42:46 -0600
From:   Rob Herring <robh@...nel.org>
To:     Todor Tomov <todor.tomov@...aro.org>
Cc:     mchehab@...nel.org, sakari.ailus@...ux.intel.com,
        hverkuil@...all.nl, linux-media@...r.kernel.org,
        linux-kernel@...r.kernel.org, Mark Rutland <mark.rutland@....com>,
        devicetree@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: media: Binding document for OV7251
 camera sensor

On Thu, Feb 08, 2018 at 10:53:37AM +0200, Todor Tomov wrote:
> Add the document for ov7251 device tree binding.
> 
> CC: Rob Herring <robh+dt@...nel.org>
> CC: Mark Rutland <mark.rutland@....com>
> CC: devicetree@...r.kernel.org
> Signed-off-by: Todor Tomov <todor.tomov@...aro.org>
> ---
>  .../devicetree/bindings/media/i2c/ov7251.txt       | 51 ++++++++++++++++++++++
>  1 file changed, 51 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/i2c/ov7251.txt
> 
> diff --git a/Documentation/devicetree/bindings/media/i2c/ov7251.txt b/Documentation/devicetree/bindings/media/i2c/ov7251.txt
> new file mode 100644
> index 0000000..c807646
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/i2c/ov7251.txt
> @@ -0,0 +1,51 @@
> +* Omnivision 1/7.5-Inch B&W VGA CMOS Digital Image Sensor
> +
> +The Omnivision OV7251 is a 1/7.5-Inch CMOS active pixel digital image sensor with
> +an active array size of 640H x 480V. It is programmable through a serial I2C
> +interface.
> +
> +Required Properties:
> +- compatible: Value should be "ovti,ov7251".
> +- 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 XSHUTDOWN which is physically active low.
> +- 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 {
> +		...
> +
> +		ov7251: ov7251@60 {

camera-sensor@60

With that,

Reviewed-by: Rob Herring <robh@...nel.org>

> +			compatible = "ovti,ov7251";
> +			reg = <0x60>;
> +
> +			enable-gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
> +			pinctrl-names = "default";
> +			pinctrl-0 = <&camera_bw_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 {
> +				ov7251_ep: endpoint {
> +					clock-lanes = <1>;
> +					data-lanes = <0>;
> +					remote-endpoint = <&csi0_ep>;
> +				};
> +			};
> +		};
> +	};
> -- 
> 2.7.4
> 

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