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

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Message-ID: <CAO9ioeWpOArPm3M5hjR5PMbu4rkV1HHxQOZjOe5LwTKK7xMWJg@mail.gmail.com>
Date: Sat, 15 Nov 2025 02:09:15 +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 Fri, 14 Nov 2025 at 23:31, Konrad Dybcio
<konrad.dybcio@....qualcomm.com> wrote:
>
> On 11/13/25 9:32 PM, Dmitry Baryshkov wrote:
> > 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.
>
> Pro doesn't necessarily have to == SG, this seems to be sort of

My understanding was that APQ8096SG is modem-less MSM8996Pro.

> a "MSM8996Pro" and "QCM8996Pro" situation.

> I'm hoping that speedbin
> fuse values don't have different meanings for mobilePro and SG

At least downstream doesn't have separate bins for APQ versions.

>
> >> 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.
>
> Oh right sorry
>
> Konrad



-- 
With best wishes
Dmitry