linux-kernel - Re: [PATCH 3/3] arm64: dts: qcom: pakala: enable ETR and CTCU devices

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Message-ID: <d91d62ce-8d85-4182-a0e6-9253f07bd002@oss.qualcomm.com>
Date: Tue, 3 Feb 2026 09:56:43 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Jie Gan <jie.gan@....qualcomm.com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Mike Leach
 <mike.leach@...aro.org>,
        James Clark <james.clark@...aro.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Tingwei Zhang <tingwei.zhang@....qualcomm.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: coresight@...ts.linaro.org, linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] arm64: dts: qcom: pakala: enable ETR and CTCU devices

On 2/3/26 9:08 AM, Jie Gan wrote:
> Embedded Trace Router(ETR) is working as a DDR memory sink to collect
> tracing data from source device and the CTCU device serves as the
> control unit for the ETR device.
> 
> Signed-off-by: Jie Gan <jie.gan@....qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/sm8750.dtsi | 177 +++++++++++++++++++++++++++++++++++
>  1 file changed, 177 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8750.dtsi b/arch/arm64/boot/dts/qcom/sm8750.dtsi
> index f56b1f889b85..1e39503360ef 100644
> --- a/arch/arm64/boot/dts/qcom/sm8750.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8750.dtsi
> @@ -3574,6 +3574,35 @@ tcsrcc: clock-controller@...4008 {
>  			#reset-cells = <1>;
>  		};
>  
> +		ctcu@...01000 {
> +			compatible = "qcom,pakala-ctcu", "qcom,sa8775p-ctcu";

With "sm8750" in the compatible:

Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>

Konrad