linux-kernel - Re: [PATCH v3 1/6] dt-bindings: arm: qcom: Document qcs8550 SoC and board

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Date: Tue, 19 Dec 2023 17:45:08 +0800
From: "Aiqun Yu (Maria)" <quic_aiquny@...cinc.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Tengfei Fan
	<quic_tengfan@...cinc.com>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>
CC: <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 1/6] dt-bindings: arm: qcom: Document qcs8550 SoC and
 board



On 12/19/2023 2:56 PM, Krzysztof Kozlowski wrote:
> On 19/12/2023 01:50, Tengfei Fan wrote:
>> Document the qcs8550 SoC and the AIM300 AIoT board bindings.
>> AIM300 Series is a highly optimized family of modules designed to support
>> AIoT applications. The Module is mounted onto Qualcomm AIoT carrier board
>> to support verification, evaluation and development.
>> AIM stands for Artificial Intelligence Module. AIoT stands for AI IoT.
>>
>> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> 
> Drop
> 
>> Signed-off-by: Tengfei Fan <quic_tengfan@...cinc.com>
>> ---
>>   Documentation/devicetree/bindings/arm/qcom.yaml | 7 +++++++
>>   1 file changed, 7 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/arm/qcom.yaml b/Documentation/devicetree/bindings/arm/qcom.yaml
>> index 1a5fb889a444..a0e3cf271cfe 100644
>> --- a/Documentation/devicetree/bindings/arm/qcom.yaml
>> +++ b/Documentation/devicetree/bindings/arm/qcom.yaml
>> @@ -49,6 +49,7 @@ description: |
>>           msm8996
>>           msm8998
>>           qcs404
>> +        qcs8550
>>           qcm2290
>>           qcm6490
>>           qdu1000
>> @@ -904,6 +905,12 @@ properties:
>>             - const: qcom,qcs404-evb
>>             - const: qcom,qcs404
>>   
>> +      - items:
>> +          - enum:
>> +              - qcom,qcs8550-aim300-aiot
>> +          - const: qcom,qcs8550-aim300
>> +          - const: qcom,qcs8550
Need to add below line here, right?
+          - const: qcom,sm8550
> 
> Missing compatible. Please read previous discussions.
The previous comments was missed. Just double confirm here for 
"fallback" meaning here.

Could you pls also double confirm for my understandings for the 
compatible rules?
As long as sm8550 was designed "hardware compatible"(pin-to-pin 
compatible) and "software firmware compatible"(firmware also support 
sm8550) to qcs8550, it is request to add compatible sm8550 to current 
compatible sequence like: board/SOM/soc/base soc.

Note that, we don't really have hardware like "sm8550 inside aim300".
> 
> Best regards,
> Krzysztof
> 

-- 
Thx and BRs,
Aiqun(Maria) Yu