linux-kernel - Re: [PATCH v3 1/3] arm64: dts: Add node for chip info driver

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Message-ID: <81c4789d-e7b3-46c4-876c-954e8db9a7e2@collabora.com>
Date: Wed, 20 Dec 2023 12:02:34 +0100
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: William-tw Lin <william-tw.lin@...iatek.com>,
 Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Matthias Brugger
 <matthias.bgg@...il.com>,
 Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v3 1/3] arm64: dts: Add node for chip info driver

Il 20/12/23 11:38, William-tw Lin ha scritto:
> Add dts node for socinfo retrieval for the following projects:
> MT8173, MT8183, MT8186, MT8192, MT8195
> 

arm64: dts: mediatek: Add socinfo efuses to MT8173/83/96/92/95 SoCs

Add efuse nodes for socinfo retrieval for MT8173, MT8183, MT8186,
MT8192 and MT8195.



...because you're not adding a chipinfo node, but efuse nodes :-)


> Signed-off-by: William-tw Lin <william-tw.lin@...iatek.com>
> ---
>   arch/arm64/boot/dts/mediatek/mt8173.dtsi | 9 +++++++++
>   arch/arm64/boot/dts/mediatek/mt8183.dtsi | 9 +++++++++
>   arch/arm64/boot/dts/mediatek/mt8186.dtsi | 4 ++++
>   arch/arm64/boot/dts/mediatek/mt8192.dtsi | 8 ++++++++
>   arch/arm64/boot/dts/mediatek/mt8195.dtsi | 3 +++
>   5 files changed, 33 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> index c47d7d900f28..06916e60679a 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> @@ -590,6 +590,15 @@
>   			reg = <0 0x10206000 0 0x1000>;
>   			#address-cells = <1>;
>   			#size-cells = <1>;
> +
> +			socinfo_data1: socinfo-data1@40 {

Also, you don't need the phandles as those nodes will never be modified from
board specific devicetree, nor assigned to any devicetree node.

This means that you can go with just

			socinfo-data1@40 {
				reg ...
			}

same for data2 and for all SoCs.

Apart from that, looks good to me.

Cheers,
Angelo