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Message-ID: <1481129e-3803-498b-bfe5-003c194f629c@kernel.org>
Date: Tue, 7 Oct 2025 23:10:28 +0100
From: Bryan O'Donoghue <bod@...nel.org>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Cc: Bryan O'Donoghue <bod.linux@...w.ie>,
 Charan Teja Kalla <charan.kalla@....qualcomm.com>,
 Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
 Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
 Krzysztof Kozlowski <krzk@...nel.org>,
 Vikash Garodia <quic_vgarodia@...cinc.com>,
 Dikshita Agarwal <quic_dikshita@...cinc.com>,
 Abhinav Kumar <abhinav.kumar@...ux.dev>,
 Mauro Carvalho Chehab <mchehab@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, linux-media@...r.kernel.org,
 linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/5] Introduce "non-pixel" sub node within iris video
 node

On 07/10/2025 20:40, Dmitry Baryshkov wrote:
>> Surely we could do
>>
>>       #iommu-cells = <4>;
> Because #iommu-cells is a part of the apps_smmu: device rather than a
> part ofthe iris/venus/GPU/display/etc.

What's to stop us extending the definition for qcom platforms ?

Rather than jumping through hoops in drivers, we can just encode the 
data in the DT.

---
bod

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