linux-kernel - Re: [PATCH v3 2/7] media: dt-bindings: qcom,sm8250-venus: sort out power domains

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Message-ID: <dqjlapoby4jdei7sewhoc56hwcctyp4lerhkvspreh7k6dlsl5@y4crjbcnxbgq>
Date: Thu, 5 Feb 2026 14:49:39 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
Cc: Bjorn Andersson <andersson@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, Taniya Das <quic_tdas@...cinc.com>,
        Jonathan Marek <jonathan@...ek.ca>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Bryan O'Donoghue <bod@...nel.org>,
        Vikash Garodia <vikash.garodia@....qualcomm.com>,
        Dikshita Agarwal <dikshita.agarwal@....qualcomm.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Stanimir Varbanov <stanimir.varbanov@...aro.org>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Hans Verkuil <hverkuil@...nel.org>,
        Stefan Schmidt <stefan.schmidt@...aro.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Dikshita Agarwal <dikshita@....qualcomm.com>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-media@...r.kernel.org,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: Re: [PATCH v3 2/7] media: dt-bindings: qcom,sm8250-venus: sort out
 power domains

On Thu, Feb 05, 2026 at 12:32:56PM +0100, Krzysztof Kozlowski wrote:
> On Wed, Feb 04, 2026 at 02:59:50AM +0200, Dmitry Baryshkov wrote:
> > First of all, on SM8250 Iris (ex-Venus) core needs to scale clocks which
> > are powered by the MMCX domain. Add MMCX domain to the list of the power
> > domain to be used on this platform.
> > 
> > While we are at it, drop minItems from both power-domains and
> > power-domains-names, it doesn't make sense from the hardware point of
> > view. There are always 2 GDSCs and two power rails wired to the video
> > clock controller and Venus. Disallow passing just two.
> 
> the min-items were also serving to preserve ABI which you now broke.
> Same comments as previous patch apply.

Old ABI wasn't supported by either of the drivers, so there is little
point in preserving it. It has been broken ages ago.

-- 
With best wishes
Dmitry