From mboxrd@z Thu Jan  1 00:00:00 1970
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Subject: Re: [PATCH 6/7] ARM: at91: dts: sama5d3: add ov2640 camera sensor support
Date: Thu, 18 Dec 2014 14:32:49 +0200
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To: Josh Wu <josh.wu@atmel.com>
Cc: nicolas.ferre@atmel.com, voice.shen@atmel.com, plagnioj@jcrosoft.com, boris.brezillon@free-electrons.com, alexandre.belloni@free-electrons.com, devicetree@vger.kernel.org, robh+dt@kernel.org, linux-media@vger.kernel.org, g.liakhovetski@gmx.de
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Hi Josh,

Thank you for the patch.

On Thursday 18 December 2014 16:51:06 Josh Wu wrote:
> According to v4l2 dt document, we add:
>   a camera host: ISI port.
>   a i2c camera sensor: ov2640 port.
> to sama5d3xmb.dtsi.
> 
> In the ov2640 node, it defines the pinctrls, clocks and isi port.
> In the ISI node, it also reference to a ov2640 port.
> 
> Signed-off-by: Josh Wu <josh.wu@atmel.com>
> ---
>  arch/arm/boot/dts/sama5d3xmb.dtsi | 32 ++++++++++++++++++++++++++++++++
>  1 file changed, 32 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/sama5d3xmb.dtsi
> b/arch/arm/boot/dts/sama5d3xmb.dtsi index 0aaebc6..958a528 100644
> --- a/arch/arm/boot/dts/sama5d3xmb.dtsi
> +++ b/arch/arm/boot/dts/sama5d3xmb.dtsi
> @@ -52,6 +52,29 @@
>  				};
>  			};
> 
> +			i2c1: i2c@f0018000 {
> +				ov2640: camera@0x30 {
> +					compatible = "ovti,ov2640";
> +					reg = <0x30>;
> +					pinctrl-names = "default";
> +					pinctrl-0 = <&pinctrl_isi_pck_as_mck
> &pinctrl_sensor_power &pinctrl_sensor_reset>;
> +					resetb-gpios = <&pioE 24 GPIO_ACTIVE_LOW>;
> +					pwdn-gpios = <&pioE 29 GPIO_ACTIVE_HIGH>;
> +					/* use pck1 for the master clock of ov2640 */
> +					clocks = <&pck1>;
> +					clock-names = "xvclk";
> +					assigned-clocks = <&pck1>;
> +					assigned-clock-rates = <25000000>;
> +
> +					port {
> +						ov2640_0: endpoint {
> +							remote-endpoint = <&isi_0>;
> +							bus-width = <8>;
> +						};
> +					};
> +				};
> +			};
> +
>  			usart1: serial@f0020000 {
>  				dmas = <0>, <0>;	/*  Do not use DMA for usart1 */
>  				pinctrl-names = "default";
> @@ -60,6 +83,15 @@
>  			};
> 
>  			isi: isi@f0034000 {
> +				port {
> +					#address-cells = <1>;
> +					#size-cells = <0>;
> +

I would add the port node and those two properties to 
arch/arm/boot/dts/sama5d3.dtsi, as the isi has a single port. The endpoint, of 
course, should stay in this file.

> +					isi_0: endpoint {
> +						remote-endpoint = <&ov2640_0>;
> +						bus-width = <8>;
> +					};
> +				};
>  			};
> 
>  			mmc1: mmc@f8000000 {

-- 
Regards,

Laurent Pinchart