linux-kernel - Re: [PATCH 1/4] arm64: dts: qcom: qcs615: Drop IPA interconnects

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Message-ID: <044bdfc9-85df-4f03-a4f8-8ef1717138dd@oss.qualcomm.com>
Date: Tue, 8 Jul 2025 12:00:55 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Krzysztof Kozlowski <krzk@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: Bjorn Andersson <andersson@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>, Georgi Djakov <djakov@...nel.org>,
        Raviteja Laggyshetty <quic_rlaggysh@...cinc.com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd
 <sboyd@...nel.org>, Dmitry Baryshkov <lumag@...nel.org>,
        Taniya Das <quic_tdas@...cinc.com>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-clk@...r.kernel.org
Subject: Re: [PATCH 1/4] arm64: dts: qcom: qcs615: Drop IPA interconnects

On 7/8/25 10:51 AM, Krzysztof Kozlowski wrote:
> On Fri, Jun 27, 2025 at 09:37:55PM +0200, Konrad Dybcio wrote:
>> From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
>>
>> In the same spirit as e.g. Commit 6314184be391 ("arm64: dts: qcom:
>> sc8180x: Drop ipa-virt interconnect") drop the resources that should
>> be taken care of through the clk-rpmh driver.
>>
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
>> ---
>>  arch/arm64/boot/dts/qcom/qcs615.dtsi | 6 ------
> 
> This is non-bisectable and breaks the users.

Of which there are clearly none, as can be seen by the node not
being referenced by any other one. I can add that to the commit
message.

This is actually as bisectable as it gets, since it goes out of
the way to satisfy both compilation and dt-bindings checks

> Should be the last patch,> not the first, with explicit notice that it must wait after the next
> merge window.

Patches to all three subsystems can go in independently to their
respective trees (except maybe icc bindings going in before dts
could spawn a dt-checker warning)

> Plus this affects all outside users, which also should be somehow
> explained. "Spirit" of some other commit does not apply here. These are
> different products, different users. It needs its own rationale and
> justification.

Yes and no, you're focusing on me referencing a different commit
while I included the same rationale it presents later in the
sentence.

Konrad