linux-kernel - Re: [PATCH v4 12/12] arm64: dts: qcom: sdm845-lg-common: remove framebuffer reserved-mem

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Message-ID: <164f88c182ff8e17a0d544effc7d64cdd73cd4eb@postmarketos.org>
Date: Wed, 03 Dec 2025 08:42:04 +0000
From: "Paul Sajna" <sajattack@...tmarketos.org>
To: "Konrad Dybcio" <konrad.dybcio@....qualcomm.com>, "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>, "David Heidelberg" <david@...t.cz>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, phone-devel@...r.kernel.org, "Amir Dahan"
 <system64fumo@...tonmail.com>, "Christopher Brown"
 <crispybrown@...il.com>
Subject: Re: [PATCH v4 12/12] arm64: dts: qcom: sdm845-lg-common: remove
 framebuffer reserved-mem

December 2, 2025 at 10:34 AM, "Konrad Dybcio" <konrad.dybcio@....qualcomm.com mailto:konrad.dybcio@....qualcomm.com?to=%22Konrad%20Dybcio%22%20%3Ckonrad.dybcio%40oss.qualcomm.com%3E > wrote:


> 
> On 12/2/25 5:41 AM, Paul Sajna wrote:
> 
> > 
> > December 1, 2025 at 12:41 PM, "Konrad Dybcio" <konrad.dybcio@....qualcomm.com mailto:konrad.dybcio@....qualcomm.com?to=%22Konrad%20Dybcio%22%20%3Ckonrad.dybcio%40oss.qualcomm.com%3E > wrote:
> >  
> >  
> > 
> > > 
> > > On 11/25/25 9:12 AM, Paul Sajna wrote:
> > > 
> >  It causes this warning
> >  
> >  [ 0.000000] OF: reserved mem: OVERLAP DETECTED!
> >  framebuffer@...00000 mailto:framebuffer@...00000 
> >  (0x000000009d400000--0x000000009f800000) overlaps with
> >  memory@...00000 mailto:memory@...00000 (0x000000009d400000--0x000000009f800000)
> >  
> >  Signed-off-by: Paul Sajna <sajattack@...tmarketos.org>
> >  ---
> > 
> > > 
> > > It's defined for both devices that include this dtsi.. perhaps you
> > >  could remove it from there
> > > 
> > >  Konrad
> > > 
> >  
> >  I don't have a judyp to test with and prefer to limit scope.
> > 
> This is a mechanical change
> 
> Konrad
>

Sorry, I tried to have a look at what you meant but didn't quite understand. In this patch I changed the dtsi that is included by both already. I don't see any other reserved-mem nodes in judyp. Do you mean I should remove the framebuffer from judyp? I don't think that's wise since a panel driver isn't added as far as I know.