linux-kernel - Re: [PATCH v3 1/2] dt-bindings: soc: qcom: Add qcom,kaanapali-imem compatible

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Message-ID: <bb9e76f0-7059-4405-a8a7-323f1a5f07b0@oss.qualcomm.com>
Date: Tue, 4 Nov 2025 18:41:32 +0800
From: "Aiqun(Maria) Yu" <aiqun.yu@....qualcomm.com>
To: Krzysztof Kozlowski <krzk@...nel.org>,
        Jingyi Wang <jingyi.wang@....qualcomm.com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Robert Marko <robimarko@...il.com>,
        Das Srinagesh <quic_gurus@...cinc.com>, tingwei.zhang@....qualcomm.com,
        trilok.soni@....qualcomm.com, yijie.yang@....qualcomm.com,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/2] dt-bindings: soc: qcom: Add qcom,kaanapali-imem
 compatible

On 11/4/2025 4:16 PM, Krzysztof Kozlowski wrote:
> On Sun, Nov 02, 2025 at 11:25:06PM -0800, Jingyi Wang wrote:
>> Document qcom,kaanapali-imem compatible. Kaanapali IMEM is not a syscon or
>> simple-mfd, also "reboot reason" is not required on Kaanapali like some
> 
> I do not see correlation. Something is not a syscon, so you add a new
> generic compatible? No.
> 
>> other platforms. So define a common "qcom,imem" binding and fallback to it.
> 
> You did not define fallback to it!
> 
> ...
> 
>> +      - items:
>> +          - enum:
>> +              - qcom,kaanapali-imem
>> +          - const: qcom,imem
> 
> I do not understand what this generic compatible is supposed to express,
> not explained in commit msg. Considering this wasn't before, it is a
> major and really undesired change. It also makes no sesne. There was no
> generic compatible before but "if not syscon" now this must have generic
> compatible, what?

Are you suggesting to remove the generic compatible of "qcom,imem"?
Could you pls help to confirm the suggested way from your point of view?


> 
> NAK
> 
> Best regards,
> Krzysztof
> 


-- 
Thx and BRs,
Aiqun(Maria) Yu