linux-kernel - Re: [PATCH 2/2] arm64: dts: qcom: sc7180: Add Coresight support

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Message-ID: <158641674726.126188.15598430709257198656@swboyd.mtv.corp.google.com>
Date:   Thu, 09 Apr 2020 00:19:07 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        David Brown <david.brown@...aro.org>,
        Leo Yan <leo.yan@...aro.org>,
        Mark Rutland <mark.rutland@....com>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        devicetree@...r.kernel.org
Cc:     Rajendra Nayak <rnayak@...eaurora.org>,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
Subject: Re: [PATCH 2/2] arm64: dts: qcom: sc7180: Add Coresight support

Quoting Sai Prakash Ranjan (2020-03-20 00:44:29)
> Add coresight components found on Qualcomm SC7180 SoC.
> 
> Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
> ---
>  arch/arm64/boot/dts/qcom/sc7180.dtsi | 507 +++++++++++++++++++++++++++
>  1 file changed, 507 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> index 998f101ad623..d8fe960d6ace 100644
> --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> @@ -1294,6 +1294,513 @@
>                         };
>                 };
>  
> +               stm@...2000 {
> +                       compatible = "arm,coresight-stm", "arm,primecell";

Does this SoC have a cpu-debug coresight component? Specifically
wondering if there's an 'arm,coresight-cpu-debug' compatible node that
can be added to this dtsi file.