linux-kernel - Re: [PATCH v5 0/8] Support Multi-frequency scale for UFS

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Message-ID: <yq134g8j8h7.fsf@ca-mkp.ca.oracle.com>
Date: Thu, 20 Feb 2025 22:13:35 -0500
From: "Martin K. Petersen" <martin.petersen@...cle.com>
To: Ziqi Chen <quic_ziqichen@...cinc.com>
Cc: quic_cang@...cinc.com, bvanassche@....org, mani@...nel.org,
        beanhuo@...ron.com, avri.altman@....com, junwoo80.lee@...sung.com,
        martin.petersen@...cle.com, quic_nguyenb@...cinc.com,
        quic_nitirawa@...cinc.com, peter.wang@...iatek.com,
        quic_rampraka@...cinc.com, linux-arm-msm@...r.kernel.org,
        linux-scsi@...r.kernel.org, Neil Armstrong <neil.armstrong@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno
 <angelogioacchino.delregno@...labora.com>,
        linux-kernel@...r.kernel.org (open list:ARM/Mediatek SoC support:Keyword:mediatek),
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Mediatek SoC
 support:Keyword:mediatek),
        linux-mediatek@...ts.infradead.org (moderated
 list:ARM/Mediatek SoC support:Keyword:mediatek)
Subject: Re: [PATCH v5 0/8] Support Multi-frequency scale for UFS


Ziqi,

> With OPP V2 enabled, devfreq can scale clocks amongst multiple
> frequency plans. However, the gear speed is only toggled between min
> and max during clock scaling. Enable multi-level gear scaling by
> mapping clock frequencies to gear speeds, so that when devfreq scales
> clock frequencies we can put the UFS link at the appropraite gear
> speeds accordingly.

Applied to 6.15/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering