linux-kernel - Re: [PATCH 3/6] arm64: dts: qcom: qdu1000: add missing qcom,smmu-500 fallback

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Message-ID: <9b26cfd1-977c-e7cd-2e9c-31b865bb1303@linaro.org>
Date:   Mon, 17 Apr 2023 09:30:10 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/6] arm64: dts: qcom: qdu1000: add missing qcom,smmu-500
 fallback



On 16.04.2023 14:37, Krzysztof Kozlowski wrote:
> Since commit 6c84bbd103d8 ("dt-bindings: arm-smmu: Add generic
> qcom,smmu-500 bindings") the SMMU is supposed to use qcom,smmu-500
> compatible fallback:
> 
>   ['qcom,qdu1000-smmu-500', 'arm,mmu-500'] is too short
>   ['qcom,qdu1000-smmu-500', 'arm,mmu-500'] is too long
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Konrad
>  arch/arm64/boot/dts/qcom/qdu1000.dtsi | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qdu1000.dtsi b/arch/arm64/boot/dts/qcom/qdu1000.dtsi
> index fb553f0bb17a..ddc3239478ae 100644
> --- a/arch/arm64/boot/dts/qcom/qdu1000.dtsi
> +++ b/arch/arm64/boot/dts/qcom/qdu1000.dtsi
> @@ -1113,7 +1113,7 @@ qup_spi15_cs: qup-spi15-cs-state {
>  		};
>  
>  		apps_smmu: iommu@...00000 {
> -			compatible = "qcom,qdu1000-smmu-500", "arm,mmu-500";
> +			compatible = "qcom,qdu1000-smmu-500", "qcom,smmu-500", "arm,mmu-500";
>  			reg = <0x0 0x15000000 0x0 0x100000>;
>  			#iommu-cells = <2>;
>  			#global-interrupts = <2>;