linux-kernel - Re: [PATCH v2] arm64: dts: qcom: Add coresight node for SM8650

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Message-ID: <85b4ec7c-e5c5-457e-b6cc-47305199a0f3@quicinc.com>
Date: Fri, 3 Jan 2025 19:31:34 +0800
From: Yuanfang Zhang <quic_yuanfang@...cinc.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Bjorn Andersson
	<andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring
	<robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
	<conor+dt@...nel.org>
CC: <kernel@...cinc.com>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] arm64: dts: qcom: Add coresight node for SM8650



On 12/13/2024 1:04 AM, Konrad Dybcio wrote:
> On 10.12.2024 9:23 AM, Yuanfang Zhang wrote:
>> Add coresight components: Funnel, ETE and ETF for SM8650.
>>
>> Signed-off-by: Yuanfang Zhang <quic_yuanfang@...cinc.com>
>> ---
>> Changes in v2:
>> - Update compatible for funnel and etf.
>> - remove unnecessary property: reg-names and arm,primecell-periphid.
>> - Link to v1: https://lore.kernel.org/r/20241210-sm8650-cs-dt-v1-1-269693451584@quicinc.com
>> ---
>>  arch/arm64/boot/dts/qcom/sm8650.dtsi | 165 +++++++++++++++++++++++++++++++++++
>>  1 file changed, 165 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sm8650.dtsi b/arch/arm64/boot/dts/qcom/sm8650.dtsi
>> index 25e47505adcb790d09f1d2726386438487255824..76620d478e872a2b725693dc32364e2a183572b7 100644
>> --- a/arch/arm64/boot/dts/qcom/sm8650.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sm8650.dtsi
>> @@ -5654,6 +5654,171 @@ compute-cb@12 {
>>  				};
>>  			};
>>  		};
>> +
>> +		ete0 {
>> +			compatible = "arm,embedded-trace-extension";
>> +
>> +			cpu = <&cpu0>;
>> +			qcom,skip-power-up;
>> +
>> +			out-ports {
>> +				port {
>> +					ete0_out_funnel_ete: endpoint {
>> +						remote-endpoint = <&funnel_ete_in_ete0>;
>> +					};
>> +				};
>> +			};
>> +		};
>> +
>> +		funnel_ete {
> 
> Node names must not contain underscores, use '-' instead
As node name pattern: "^ete([0-9a-f]+)$" in arm,embedded-trace-extension.yaml,
then name it ete0.
> 
> Also, nodes without a reg property/unit address don't belong under /soc
> 
Done.
> Konrad