linux-kernel - Re: [PATCH v2 3/4] dt-bindings: arm-smmu: Remove sdm845-cheza specific entry

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAD=FV=XmwiA_gX9pF5Dja1vezson7f21WHC8u8+Rhg_6OUJ+rw@mail.gmail.com>
Date: Wed, 16 Jul 2025 07:21:51 -0700
From: Doug Anderson <dianders@...omium.org>
To: 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>, 
	cros-qcom-dts-watchers@...omium.org, Will Deacon <will@...nel.org>, 
	Robin Murphy <robin.murphy@....com>, Joerg Roedel <joro@...tes.org>, 
	Marijn Suijten <marijn.suijten@...ainline.org>, linux-arm-msm@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Rob Clark <robin.clark@....qualcomm.com>, linux-arm-kernel@...ts.infradead.org, 
	iommu@...ts.linux.dev, Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: Re: [PATCH v2 3/4] dt-bindings: arm-smmu: Remove sdm845-cheza
 specific entry

Hi,

On Wed, Jul 16, 2025 at 3:16 AM 'Konrad Dybcio' via
cros-qcom-dts-watchers <cros-qcom-dts-watchers@...omium.org> wrote:
>
> From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
>
> The firmware on SDM845-based Cheza boards did not provide the same
> level of feature support for SMMUs (particularly around the Adreno
> GPU integration).
>
> Now that Cheza is being removed from the kernel (almost none exist at
> this point in time), retire the entry as well.
>
> Most notably, it's not being marked as deprecated instead, as there is
> no indication that any more of those ~7 year old devboards will be
> built.
>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
> ---
>  Documentation/devicetree/bindings/iommu/arm,smmu.yaml | 4 ----
>  1 file changed, 4 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
> index 7b9d5507d6ccd6b845a57eeae59fe80ba75cc652..646814ec7d15f6d8a0136de73b7eaddae232ea64 100644
> --- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
> +++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
> @@ -132,10 +132,6 @@ properties:
>                - qcom,sm7150-smmu-v2
>            - const: qcom,adreno-smmu
>            - const: qcom,smmu-v2
> -      - description: Qcom Adreno GPUs on Google Cheza platform
> -        items:
> -          - const: qcom,sdm845-smmu-v2
> -          - const: qcom,smmu-v2

The code supporting this can also be removed then, right?

drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c:     { .compatible =
"qcom,sdm845-smmu-v2", .data = &qcom_smmu_v2_data },

Reviewed-by: Douglas Anderson <dianders@...omium.org>