linux-kernel - Re: [PATCH 2/2] arm64: dts: qcom: hamoa: enable ETR and CTCU devices

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Message-ID: <f9dd8e69-d95f-4052-9604-aabe4f44c6c5@oss.qualcomm.com>
Date: Thu, 6 Nov 2025 09:14:55 +0800
From: Jie Gan <jie.gan@....qualcomm.com>
To: Krzysztof Kozlowski <krzk@...nel.org>,
        Konrad Dybcio <konrad.dybcio@....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>,
        Mao Jinlong <jinlong.mao@....qualcomm.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, coresight@...ts.linaro.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] arm64: dts: qcom: hamoa: enable ETR and CTCU devices



On 11/5/2025 5:17 PM, Krzysztof Kozlowski wrote:
> On 05/11/2025 10:09, Konrad Dybcio wrote:
>> On 11/5/25 2:14 AM, Jie Gan wrote:
>>>
>>>
>>> On 11/4/2025 8:47 PM, Konrad Dybcio wrote:
>>>> On 11/4/25 9:10 AM, Jie Gan wrote:
>>>>> Embedded Trace Router(ETR) is working as a DDR memory sink to collect
>>>>> tracing data from source device.
>>>>>
>>>>> The CTCU serves as the control unit for the ETR device, managing its
>>>>> behavior to determine how trace data is collected.
>>>>>
>>>>> Signed-off-by: Jie Gan <jie.gan@....qualcomm.com>
>>>>> ---
>>>>>    arch/arm64/boot/dts/qcom/hamoa.dtsi | 160 +++++++++++++++++++++++++++++++++++-
>>>>>    1 file changed, 159 insertions(+), 1 deletion(-)
>>>>>
>>>>> diff --git a/arch/arm64/boot/dts/qcom/hamoa.dtsi b/arch/arm64/boot/dts/qcom/hamoa.dtsi
>>>>> index a17900eacb20..ca4a473614ee 100644
>>>>> --- a/arch/arm64/boot/dts/qcom/hamoa.dtsi
>>>>> +++ b/arch/arm64/boot/dts/qcom/hamoa.dtsi
>>>>> @@ -6713,6 +6713,35 @@ data-pins {
>>>>>                };
>>>>>            };
>>>>>    +        ctcu@...01000 {
>>>>> +            compatible = "qcom,hamoa-ctcu","qcom,sa8775p-ctcu";
>>>>
>>>> Missing space between after the comma
>>>>
>>>> no issues otherwise
>>>
>>> sorry for the mistake. Do I need send a new version to fix it?
>>
>> I think you do since Krzysztof made some comments
> 
> 
> Not a technical ones, but about the process.

will send a new version to address all comments.

Thanks,
Jie

> 
> Best regards,
> Krzysztof