linux-kernel - Re: [PATCH 03/11] ARM: dts: qcom: Update devicetree for ADC7 rename for QCOM PMICs

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Date:   Mon, 23 Oct 2023 08:32:11 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Jishnu Prakash <quic_jprakash@...cinc.com>, agross@...nel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linus.walleij@...aro.org, Jonathan.Cameron@...wei.com,
        sboyd@...nel.org, dmitry.baryshkov@...aro.org,
        quic_subbaram@...cinc.com, quic_collinsd@...cinc.com,
        quic_kamalw@...cinc.com, marijn.suijten@...ainline.org,
        andriy.shevchenko@...ux.intel.com,
        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>,
        cros-qcom-dts-watchers@...omium.org, linux-arm-msm@...r.kernel.org
Cc:     linux-iio@...r.kernel.org, linux-arm-msm-owner@...r.kernel.org
Subject: Re: [PATCH 03/11] ARM: dts: qcom: Update devicetree for ADC7 rename
 for QCOM PMICs

On 23/10/2023 08:09, Jishnu Prakash wrote:
> Hi Krzysztof,
> 
> On 7/9/2023 10:48 PM, Krzysztof Kozlowski wrote:
>> On 08/07/2023 09:28, Jishnu Prakash wrote:
>>> The name "ADC7" needs to be replaced with the name "ADC5_GEN2"
>>> everywhere to match the convention used for these ADC peripherals
>>> on Qualcomm Technologies, Inc. PMICs. Update devicetree files for
>> We do not rename compatibles to match convention. Please provide proper
>> rationale.
> 
> I'll avoid renaming the compatible directly, will just mark it 
> deprecated - but is it fine to do the other changes, for updating the 
> macro names used in devicetree (replacing the ADC7 macros with the ADC5 
> Gen2 macros)?

Please provide proper rationale why "ADC7 needs to be replaced". Your
marketing is not a proper rationale.

> 
> I do see an example of a macro change in devicetree done in this patch: 
> https://lore.kernel.org/all/cover.1646388139.git.zong.li@sifive.com/.
> 
> Patch 2 here replaced some macro definitions: 
> https://lore.kernel.org/all/f9284873c2993a9952d9fe4f8dd5e89f20daab75.1646388139.git.zong.li@sifive.com/.
> 
> Patch 3 made the corresponding update in devicetree files: 
> https://lore.kernel.org/all/db92d209fa700f7da8bc8028083476fcc138d80e.1646388139.git.zong.li@sifive.com/. 

And what is rationale in that patchset?

> 
> 
>  From this mail, it looks like the maintainer was willing to pick them 
> at that time: 
> https://lore.kernel.org/all/20220315225652.CDAD1C340E8@smtp.kernel.org/, 
> would something similar be possible here?

For stated before marketing reasons - no, would not be possible.

Best regards,
Krzysztof