linux-kernel - Re: [PATCH v8 3/3] arm64: dts: rockchip: Add the camera interface

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Date:   Fri, 20 Oct 2023 16:10:53 +0200
From:   Paul Kocialkowski <paul.kocialkowski@...tlin.com>
To:     Mehdi Djait <mehdi.djait@...tlin.com>
Cc:     mchehab@...nel.org, heiko@...ech.de, hverkuil-cisco@...all.nl,
        krzysztof.kozlowski+dt@...aro.org, robh+dt@...nel.org,
        conor+dt@...nel.org, ezequiel@...guardiasur.com.ar,
        linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, thomas.petazzoni@...tlin.com,
        alexandre.belloni@...tlin.com, maxime.chevallier@...tlin.com
Subject: Re: [PATCH v8 3/3] arm64: dts: rockchip: Add the camera interface

Hi Mehdi,

On Mon 16 Oct 23, 11:00, Mehdi Djait wrote:
> The PX30 has a camera interface, supporting CSI2 and BT656
> modes. Add a DT description for this interface.

The "vip" node name is not very standard but the generic names recommendation
doesn't have anything that really fits video capture:
https://devicetree-specification.readthedocs.io/en/v0.3/devicetree-basics.html#generic-names-recommendation

You might want to call it "video-capture" or "camera-controller" which seems
like a good middle-ground that could be included in the list.

Please keep the name (vip/cif) as label though.

Other than that, please rename vip to cif and this will be:
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>

Cheers,

Paul

> Signed-off-by: Mehdi Djait <mehdi.djait@...tlin.com>
> ---
>  arch/arm64/boot/dts/rockchip/px30.dtsi | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/px30.dtsi b/arch/arm64/boot/dts/rockchip/px30.dtsi
> index 42ce78beb413..7aaa88a15d07 100644
> --- a/arch/arm64/boot/dts/rockchip/px30.dtsi
> +++ b/arch/arm64/boot/dts/rockchip/px30.dtsi
> @@ -1281,6 +1281,18 @@ isp_mmu: iommu@...a8000 {
>  		#iommu-cells = <0>;
>  	};
>  
> +	vip: vip@...90000 {
> +		compatible = "rockchip,px30-vip";
> +		reg = <0x0 0xff490000 0x0 0x200>;
> +		interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
> +		clocks = <&cru ACLK_CIF>, <&cru HCLK_CIF>, <&cru PCLK_CIF>;
> +		clock-names = "aclk", "hclk", "pclk";
> +		power-domains = <&power PX30_PD_VI>;
> +		resets = <&cru SRST_CIF_A>, <&cru SRST_CIF_H>, <&cru SRST_CIF_PCLKIN>;
> +		reset-names = "axi", "ahb", "pclkin";
> +		status = "disabled";
> +	};
> +
>  	qos_gmac: qos@...18000 {
>  		compatible = "rockchip,px30-qos", "syscon";
>  		reg = <0x0 0xff518000 0x0 0x20>;
> -- 
> 2.41.0
> 

-- 
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com

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