linux-kernel - Re: [PATCH v3 1/2] dt-bindings: arm: Add qcom,qmi-id for remote etm

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Message-ID: <13ac63cb-8ef8-41e4-8758-82635cbfade4@quicinc.com>
Date: Fri, 23 Aug 2024 15:16:07 +0800
From: Jinlong Mao <quic_jinlmao@...cinc.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
CC: Suzuki K Poulose <suzuki.poulose@....com>,
        Mike Leach
	<mike.leach@...aro.org>, James Clark <james.clark@....com>,
        Alexander
 Shishkin <alexander.shishkin@...ux.intel.com>,
        Andy Gross
	<agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring
	<robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
	<conor+dt@...nel.org>, <linux-kernel@...r.kernel.org>,
        <coresight@...ts.linaro.org>, <linux-arm-kernel@...ts.infradead.org>,
        <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>
Subject: Re: [PATCH v3 1/2] dt-bindings: arm: Add qcom,qmi-id for remote etm



On 2024/8/22 15:41, Krzysztof Kozlowski wrote:
> On Wed, Aug 21, 2024 at 11:41:18PM -0700, Mao Jinlong wrote:
>> qcom,qmi-id is the instance id used by qmi API to communicate with
>> remote processor.
>>
>> Signed-off-by: Mao Jinlong <quic_jinlmao@...cinc.com>
>> ---
>>   .../bindings/arm/qcom,coresight-remote-etm.yaml        | 10 ++++++++++
>>   1 file changed, 10 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-remote-etm.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-remote-etm.yaml
>> index 4fd5752978cd..27e5f18bfedf 100644
>> --- a/Documentation/devicetree/bindings/arm/qcom,coresight-remote-etm.yaml
>> +++ b/Documentation/devicetree/bindings/arm/qcom,coresight-remote-etm.yaml
>> @@ -20,6 +20,13 @@ properties:
>>     compatible:
>>       const: qcom,coresight-remote-etm
>>   
>> +  qcom,qmi-id:
>> +    $ref: /schemas/types.yaml#/definitions/uint32
>> +    description:
>> +      This id is used by qmi API to communicate with remote processor for
>> +      enabling and disabling remote etm. Each processor has its unique instance
>> +      id.
>> +
>>     out-ports:
>>       $ref: /schemas/graph.yaml#/properties/ports
>>       additionalProperties: false
>> @@ -31,6 +38,7 @@ properties:
>>   
>>   required:
>>     - compatible
>> +  - qcom,qmi-id
> 
> That's an ABI break.
> 
> Best regards,
> Krzysztof
Hi Krzysztof,

Sorry, I didn't get your point.
Could you please share more details ?

Thanks
Jinlong Mao

> 
>