linux-kernel - Re: [RESEND PATCH v3] scsi: ufs: exclude UECxx from SFR dump list

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Date:   Fri, 8 Jul 2022 14:28:29 -0700
From:   Bart Van Assche <bvanassche@....org>
To:     Kiwoong Kim <kwmad.kim@...sung.com>, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org, alim.akhtar@...sung.com,
        avri.altman@....com, jejb@...ux.ibm.com,
        martin.petersen@...cle.com, beanhuo@...ron.com,
        cang@...eaurora.org, adrian.hunter@...el.com, sc.suh@...sung.com,
        hy50.seo@...sung.com, sh425.lee@...sung.com,
        bhoon95.kim@...sung.com, vkumar.1997@...sung.com
Subject: Re: [RESEND PATCH v3] scsi: ufs: exclude UECxx from SFR dump list

On 3/15/22 02:56, Kiwoong Kim wrote:
> These are ROC type things that means their values
> are cleared when the SFRs are read.

Is this behavior specific to the Exynos controller or is this behavior 
required by the UFSHCI specification? In the latter case, can you tell 
me where to find this requirement in the UFSHCI specification? I haven't 
found that requirement yet. Maybe this means that I overlooked something?

Thanks,

Bart.