linux-kernel - Re: [PATCH v2 09/15] scsi: ufs: deprecate 'freq-table-hz' property

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Message-ID: <968cf18e-af5c-0503-79b1-a622938d4e0a@canonical.com>
Date:   Wed, 23 Feb 2022 09:23:58 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To:     Alim Akhtar <alim.akhtar@...sung.com>,
        'Avri Altman' <avri.altman@....com>,
        'Rob Herring' <robh+dt@...nel.org>,
        'Andy Gross' <agross@...nel.org>,
        'Bjorn Andersson' <bjorn.andersson@...aro.org>,
        'Wei Xu' <xuwei5@...ilicon.com>, 'Nishanth Menon' <nm@...com>,
        'Vignesh Raghavendra' <vigneshr@...com>,
        'Tero Kristo' <kristo@...nel.org>,
        "'James E.J. Bottomley'" <jejb@...ux.ibm.com>,
        "'Martin K. Petersen'" <martin.petersen@...cle.com>,
        'Jan Kotas' <jank@...ence.com>, 'Li Wei' <liwei213@...wei.com>,
        'Stanley Chu' <stanley.chu@...iatek.com>,
        'Yaniv Gardi' <ygardi@...eaurora.org>,
        linux-scsi@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v2 09/15] scsi: ufs: deprecate 'freq-table-hz' property

On 22/02/2022 17:44, Alim Akhtar wrote:
> Hi Krzysztof
> 
>> -----Original Message-----
>> From: Krzysztof Kozlowski [mailto:krzysztof.kozlowski@...onical.com]
>> Sent: Tuesday, February 22, 2022 8:29 PM
>> To: Alim Akhtar <alim.akhtar@...sung.com>; Avri Altman
>> <avri.altman@....com>; Rob Herring <robh+dt@...nel.org>; Krzysztof
>> Kozlowski <krzysztof.kozlowski@...onical.com>; Andy Gross
>> <agross@...nel.org>; Bjorn Andersson <bjorn.andersson@...aro.org>; Wei
>> Xu <xuwei5@...ilicon.com>; Nishanth Menon <nm@...com>; Vignesh
>> Raghavendra <vigneshr@...com>; Tero Kristo <kristo@...nel.org>; James E.J.
>> Bottomley <jejb@...ux.ibm.com>; Martin K. Petersen
>> <martin.petersen@...cle.com>; Jan Kotas <jank@...ence.com>; Li Wei
>> <liwei213@...wei.com>; Stanley Chu <stanley.chu@...iatek.com>; Yaniv
>> Gardi <ygardi@...eaurora.org>; linux-scsi@...r.kernel.org;
>> devicetree@...r.kernel.org; linux-kernel@...r.kernel.org; linux-arm-
>> msm@...r.kernel.org; linux-arm-kernel@...ts.infradead.org; linux-samsung-
>> soc@...r.kernel.org; linux-mediatek@...ts.infradead.org
>> Subject: [PATCH v2 09/15] scsi: ufs: deprecate 'freq-table-hz' property
>>
>> The 'freq-table-hz' is not correct in DT schema, because '-hz' suffix
> defines
>> uint32 type, not an array.  Therefore deprecate 'freq-table-hz'
>> and use 'freq-table' instead.
>>
> May be once all the dts change migrate to using 'freq-table', just remove
> 'freq-table-hz' from driver.

At some point in the future 'freq-table-hz' parsing could be removed,
but now you have both old and new DTS, so it should stay. Also for DTB
compatibility.


Best regards,
Krzysztof