linux-kernel - Re: [PATCH 2/2] arm64: dts: qcom: add apq8096sg-db820c, AP8096SG variant of DB820c

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Message-ID: <wf4h2lwyvgswtv4bgdfidj4vpvykwhu2gri4crvvtd644hf6nr@cnpqi5bmpvm5>
Date: Thu, 13 Nov 2025 22:32:33 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Cc: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] arm64: dts: qcom: add apq8096sg-db820c, AP8096SG
 variant of DB820c

On Wed, Nov 12, 2025 at 10:44:49AM +0100, Konrad Dybcio wrote:
> On 11/11/25 5:02 PM, Dmitry Baryshkov wrote:
> > There has been a (rare) varint of Dragonboard 820c, utilizing Pro
> > version of the SoC, with the major difference being CPU and GPU clock
> > tables. Add a DT file representing this version of the board.
> 
> So is the conclusion that both flavors were used?

Yes. I have had a production unit with a non-SG flavour. Bjorn's lab
has a standard one too. All units in Collabora lab are Pro ones.

> 
> This product brief
> 
> https://cdn.lantronix.com/wp-content/uploads/pdf/Open-Q_820_Development_Kit_Quick_Start_Guide.pdf

This is a totally different board.

> 
> suggests it was the SG all along, FWIW

-- 
With best wishes
Dmitry