linux-kernel - Re: [PATCH v2 1/2] dt-bindings: arm: coresight: Remove pattern match of ETE node name

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Date: Wed, 17 Jan 2024 10:14:35 +0800
From: Jinlong Mao <quic_jinlmao@...cinc.com>
To: Suzuki K Poulose <suzuki.poulose@....com>,
        Mike Leach
	<mike.leach@...aro.org>, James Clark <james.clark@....com>,
        Leo Yan
	<leo.yan@...aro.org>,
        Alexander Shishkin
	<alexander.shishkin@...ux.intel.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley
	<conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio
	<konrad.dybcio@...aro.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>
CC: <coresight@...ts.linaro.org>, <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>,
        Tingwei Zhang <quic_tingweiz@...cinc.com>,
        Yuanfang Zhang <quic_yuanfang@...cinc.com>,
        Tao Zhang
	<quic_taozha@...cinc.com>
Subject: Re: [PATCH v2 1/2] dt-bindings: arm: coresight: Remove pattern match
 of ETE node name



On 1/16/2024 5:33 PM, Suzuki K Poulose wrote:
> On 16/01/2024 06:45, Mao Jinlong wrote:
>> Remove pattern match of ETE node name. Use ete with the number as the
>> name for ete nodes.
>>
>> Signed-off-by: Mao Jinlong <quic_jinlmao@...cinc.com>
>> ---
>>   .../bindings/arm/arm,embedded-trace-extension.yaml          | 6 ++----
>>   1 file changed, 2 insertions(+), 4 deletions(-)
>>
>> diff --git 
>> a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>> index f725e6940993..ed78cc7ae94a 100644
>> --- 
>> a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>> +++ 
>> b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>> @@ -22,8 +22,6 @@ description: |
>>     with any optional connection graph as per the coresight bindings.
>>   properties:
>> -  $nodename:
>> -    pattern: "^ete([0-9a-f]+)$"
>>     compatible:
>>       items:
>>         - const: arm,embedded-trace-extension
>> @@ -55,13 +53,13 @@ examples:
>>   # An ETE node without legacy CoreSight connections
>>     - |
>> -    ete0 {
>> +    ete-0 {
> 
> Why do we need the number ? why not simply "ete" as Krzysztof suggested ?
> 

Hi Suzuki & Krzysztof ,

If name all the ete nodes' name as 'ete', there will be error below when 
build images.

arch/arm64/boot/dts/qcom/sm8450.dtsi:301.6-312.4: ERROR 
(duplicate_node_names): /ete: Duplicate node name
arch/arm64/boot/dts/qcom/sm8450.dtsi:314.6-325.4: ERROR 
(duplicate_node_names): /ete: Duplicate node name
arch/arm64/boot/dts/qcom/sm8450.dtsi:327.6-338.4: ERROR 
(duplicate_node_names): /ete: Duplicate node name
arch/arm64/boot/dts/qcom/sm8450.dtsi:340.6-351.4: ERROR 
(duplicate_node_names): /ete: Duplicate node name
arch/arm64/boot/dts/qcom/sm8450.dtsi:353.6-364.4: ERROR 
(duplicate_node_names): /ete: Duplicate node name
arch/arm64/boot/dts/qcom/sm8450.dtsi:366.6-377.4: ERROR 
(duplicate_node_names): /ete: Duplicate node name
arch/arm64/boot/dts/qcom/sm8450.dtsi:379.6-390.4: ERROR 
(duplicate_node_names): /ete: Duplicate node name

Thanks
Jinlong Mao

> 
>