linux-kernel - Re: [PATCH] arm64: dts: qcom: sm8550: add specific SMMU compatible

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Date:   Fri, 27 Jan 2023 14:34:00 +0200
From:   Abel Vesa <abel.vesa@...aro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.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] arm64: dts: qcom: sm8550: add specific SMMU compatible

On 23-01-27 12:55:13, Krzysztof Kozlowski wrote:
> Generic SMMU compatibles are not allowed alone and we expect specific
> one.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> 

Reviewed-by: Abel Vesa <abel.vesa@...aro.org>

> ---
> 
> Compatible is documented here:
> https://lore.kernel.org/all/20221116114001.2669003-1-abel.vesa@linaro.org/
> ---
>  arch/arm64/boot/dts/qcom/sm8550.dtsi | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
> index 0307b853ec4f..e385432e7a22 100644
> --- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
> @@ -3053,7 +3053,7 @@ data-pins {
>  		};
>  
>  		apps_smmu: iommu@...00000 {
> -			compatible = "qcom,smmu-500", "arm,mmu-500";
> +			compatible = "qcom,sm8550-smmu-500", "qcom,smmu-500", "arm,mmu-500";
>  			reg = <0 0x15000000 0 0x100000>;
>  			#iommu-cells = <2>;
>  			#global-interrupts = <1>;
> -- 
> 2.34.1
>