linux-kernel - Re: [PATCH v1 1/2] dt-bindings: arm: coresight: Update the pattern of ete node name

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Message-ID: <9d13e1ce-38b1-4cdd-83ba-eca0c3091ce1@quicinc.com>
Date: Tue, 26 Dec 2023 09:50:20 +0800
From: Jinlong Mao <quic_jinlmao@...cinc.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Mathieu Poirier
	<mathieu.poirier@...aro.org>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        "Mike Leach" <mike.leach@...aro.org>,
        James Clark <james.clark@....com>, Leo
 Yan <leo.yan@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson
	<andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring
	<robh+dt@...nel.org>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
CC: <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Tingwei Zhang <quic_tingweiz@...cinc.com>,
        Yuanfang Zhang <quic_yuanfang@...cinc.com>,
        Tao Zhang
	<quic_taozha@...cinc.com>, <coresight@...ts.linaro.org>
Subject: Re: [PATCH v1 1/2] dt-bindings: arm: coresight: Update the pattern of
 ete node name



On 12/21/2023 4:44 PM, Krzysztof Kozlowski wrote:
> On 21/12/2023 09:36, Jinlong Mao wrote:
>>
>>
>> On 12/21/2023 4:17 PM, Krzysztof Kozlowski wrote:
>>> On 21/12/2023 09:15, Jinlong Mao wrote:
>>>>
>>>>
>>>> On 12/21/2023 4:12 PM, Krzysztof Kozlowski wrote:
>>>>> On 21/12/2023 04:28, Jinlong Mao wrote:
>>>>>>>> diff --git a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>>>> index f725e6940993..cbf583d34029 100644
>>>>>>>> --- a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>>>> +++ b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>>>> @@ -23,7 +23,7 @@ description: |
>>>>>>>>      
>>>>>>>>      properties:
>>>>>>>>        $nodename:
>>>>>>>> -    pattern: "^ete([0-9a-f]+)$"
>>>>>>>> +    pattern: "^ete-([0-9a-f]+)$"
>>>>>>>
>>>>>>> My concerns are not resolved. Why is it here in the first place?
>>>>>>
>>>>>> Hi Krzysztof,
>>>>>>
>>>>>> ETE is acronym of embedded trace extension. The number of the name is
>>>>>> the same as the number of the CPU it belongs to.
>>>>>
>>>>> This is obvious and was not my question.
>>>>
>>>> Do you mean why the pattern match of the node name is added here ?
>>>
>>> Yes, especially that it is requiring a non-generic name.
>>>
>>>>
>>>> This node should not have the node name match, right ?
>>>
>>> Usually. For sure shouldn't be for non-generic names.
>>>
>> Hi Suzuki,
>>
>> Can we remove the pattern match of the node name and use a generic name
>> "ete" for the ete DT nodes ?
> 
> "ete" is not a generic name. What is generic here? It's an acronym of
> some specific device name.
> 

The device full name is embedded trace extension. So use ETE as the name 
here.

Thanks
Jinlong Mao

>