linux-kernel - Re: [PATCH v3 08/15] arm64: dts: qcom: msm8996: add missing TCSR syscon compatible

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Message-ID: <9f47ef0f-6e73-9ed4-55db-491d22c55c76@linaro.org>
Date:   Tue, 20 Sep 2022 01:13:07 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Ohad Ben-Cohen <ohad@...ery.com>,
        Baolin Wang <baolin.wang@...ux.alibaba.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Vinod Koul <vkoul@...nel.org>, linux-arm-msm@...r.kernel.org,
        linux-remoteproc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 08/15] arm64: dts: qcom: msm8996: add missing TCSR
 syscon compatible

On 09/09/2022 12:20, Krzysztof Kozlowski wrote:
> TCSR syscon node should come with dedicated compatible.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> ---
>   arch/arm64/boot/dts/qcom/msm8996.dtsi | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
> index 166374566a49..5f45d0589265 100644
> --- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
> @@ -3499,7 +3499,7 @@ frame@...0000 {
>   		};
>   
>   		saw3: syscon@...0000 {
> -			compatible = "syscon";
> +			compatible = "qcom,tcsr-msm8996", "syscon";

No! saw3 is not a TCSR. It is a separate region, which should be managed 
by the SPM driver.

>   			reg = <0x09a10000 0x1000>;
>   		};
>   

-- 
With best wishes
Dmitry