linux-kernel - Re: [PATCH] needsreview! arm64: dts: qcom: sdm845: Add missing MDSS reset

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Message-ID: <6a4f7953-1db7-446d-ac2a-0870f4f3a260@oss.qualcomm.com>
Date: Tue, 13 Jan 2026 10:27:13 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: david@...t.cz, 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>
Cc: Petr Hodina <petr.hodina@...tonmail.com>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        phone-devel@...r.kernel.org
Subject: Re: [PATCH] needsreview! arm64: dts: qcom: sdm845: Add missing MDSS
 reset

On 1/12/26 1:33 PM, David Heidelberg via B4 Relay wrote:
> From: David Heidelberg <david@...t.cz>
> 
> If the OS does not support recovering the state left by the
> bootloader it needs a way to reset display hardware, so that it can
> start from a clean state. Add a reference to the relevant reset.

This part is reasonable

> 
> Signed-off-by: David Heidelberg <david@...t.cz>
> ---
> It efficiently fixes nothing for us (at least what we're aware), so I
> assume the state left by bootloader is good enough
> 
> I sending this as a something "which seems right" and works for us in
> sdm845-next tree.

This part says "I am only doing this because cargo cult"..

Generally this patch looks good, because it describes a physical
connection on the SoC for the OS to consume..

Konrad