linux-kernel - Re: [PATCH 1/2] scsi: ufs: ufs-qcom: Update PHY settings only when scaling to higher gears

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Message-ID: <yq1fs3heeiu.fsf@ca-mkp.ca.oracle.com>
Date:   Wed, 13 Sep 2023 21:21:09 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc:     jejb@...ux.ibm.com, martin.petersen@...cle.com, bvanassche@....org,
        avri.altman@....com, alim.akhtar@...sung.com, andersson@...nel.org,
        konrad.dybcio@...aro.org, linux-arm-msm@...r.kernel.org,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        quic_cang@...cinc.com, quic_nitirawa@...cinc.com,
        stable@...r.kernel.org
Subject: Re: [PATCH 1/2] scsi: ufs: ufs-qcom: Update PHY settings only when
 scaling to higher gears


Manivannan,

> The "hs_gear" variable is used to program the PHY settings (submode)
> during ufs_qcom_power_up_sequence(). Currently, it is being updated
> every time the agreed gear changes. Due to this, if the gear got
> downscaled before suspend (runtime/system), then while resuming, the
> PHY settings for the lower gear will be applied first and later when
> scaling to max gear with REINIT, the PHY settings for the max gear
> will be applied.

Applied to 6.7/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering