linux-kernel - Re: [PATCH] dt-bindings: arm-smmu: disallow clocks when not used

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Message-ID: <167279162395.131504.15364556098341067594.robh@kernel.org>
Date:   Tue, 3 Jan 2023 18:20:24 -0600
From:   Rob Herring <robh@...nel.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     linux-arm-kernel@...ts.infradead.org,
        Joerg Roedel <joro@...tes.org>,
        Robin Murphy <robin.murphy@....com>,
        linux-kernel@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        iommu@...ts.linux.dev,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        devicetree@...r.kernel.org,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, Will Deacon <will@...nel.org>
Subject: Re: [PATCH] dt-bindings: arm-smmu: disallow clocks when not used


On Thu, 22 Dec 2022 10:23:55 +0100, Krzysztof Kozlowski wrote:
> Disallow clocks for variants other than:
> 1. SMMUs with platform-specific compatibles which list explicit clocks
>    and clock-names,
> 2. SMMUs using only generic compatibles, e.g. arm,mmu-500, which have a
>    variable clocks on different implementations.
> 
> This requires such variants with platform-specific compatible, to
> explicitly list the clocks or omit them, making the binding more
> constraint.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> 
> ---
> 
> Cc: Marijn Suijten <marijn.suijten@...ainline.org>
> Cc: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> Cc: Konrad Dybcio <konrad.dybcio@...aro.org>
> ---
>  .../devicetree/bindings/iommu/arm,smmu.yaml   | 28 +++++++++++++++++++
>  1 file changed, 28 insertions(+)
> 

Acked-by: Rob Herring <robh@...nel.org>