linux-kernel - Re: [PATCH 1/3] arm64: dts: qcom: x1e80100-hp-omnibook-x14: Create and include a dtsi

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Message-ID: <20250407112044.35fe4d8a@gollum>
Date: Mon, 7 Apr 2025 11:20:43 +0200
From: Juerg Haefliger <juerg.haefliger@...onical.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
Cc: andersson@...nel.org, konradybcio@...nel.org, robh@...nel.org,
 krzk+dt@...nel.org, conor+dt@...nel.org, linux-arm-msm@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] arm64: dts: qcom: x1e80100-hp-omnibook-x14: Create
 and include a dtsi

On Fri, 4 Apr 2025 14:51:54 +0200
Krzysztof Kozlowski <krzk@...nel.org> wrote:

> On 04/04/2025 11:01, Juerg Haefliger wrote:
> > Create a dtsi for the HP OmniBook so it can be reused for the HP EliteBook
> > which seems to be the same HW.
> > 
> > Signed-off-by: Juerg Haefliger <juerg.haefliger@...onical.com>
> > ---
> >  .../dts/qcom/x1e80100-hp-omnibook-x14.dts     | 1554 +---------------
> >  .../dts/qcom/x1e80100-hp-omnibook-x14.dtsi    | 1557 +++++++++++++++++
> >  2 files changed, 1558 insertions(+), 1553 deletions(-)
> >  create mode 100644 arch/arm64/boot/dts/qcom/x1e80100-hp-omnibook-x14.dtsi  
> 
> Very difficult to review. This should have been rename. You are not
> using b4, so you can tweak -M/-B/-C parameters.

Not sure what that means, but OK :-)


> 
> 
> I also do not understand what the DTSI represents. The DTSI files should
> be some sort of common hardware, design, product. Are you sure these
> devices share the design?

Yes, pretty much.

OmniBook:  mainboard 8CBE, version 17.39
EliteBook: mainboard 8CBE, version 17.40

HWinfo from Windows looks identical. DSDT are identical except that the
EliteBook has two additional nodes \_SB_.GPU0.PBRT.RBF5 and
\_SB_.GPU0.PBRT.RBF6. Not sure what those are, maybe due to different BIOS
versions?

Using the current OmniBook dtb works with my EliteBook.

...Juerg


> 
> Best regards,
> Krzysztof


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