linux-kernel - Re: [PATCH] scsi: ufs: ufshcd: Read device property for ref clock

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Message-ID: <yq1fsixq0it.fsf@ca-mkp.ca.oracle.com>
Date:   Mon, 18 Jul 2022 22:50:10 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Daniil Lunev <dlunev@...omium.org>
Cc:     Adrian Hunter <adrian.hunter@...el.com>,
        Bart Van Assche <bvanassche@....org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        Bean Huo <beanhuo@...ron.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        Jonathan Corbet <corbet@....net>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-scsi@...r.kernel.org
Subject: Re: [PATCH] scsi: ufs: ufshcd: Read device property for ref clock


Daniil,

> UFS storage devices require bRefClkFreq attribute to be set to operate
> correctly at high speed mode. The necessary value is determined by
> what the SoC / board supports. The standard doesn't specify a method
> to query the value, so the information needs to be fed in separately.

Applied to 5.20/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering