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Subject: Re: [PATCH v2 4/4] scsi: ufs-mediatek: customize WriteBooster flush
 policy
To:     Stanley Chu <stanley.chu@mediatek.com>, linux-scsi@vger.kernel.org,
        martin.petersen@oracle.com, avri.altman@wdc.com,
        alim.akhtar@samsung.com, jejb@linux.ibm.com
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        bvanassche@acm.org, linux-mediatek@lists.infradead.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        kuohong.wang@mediatek.com, peter.wang@mediatek.com,
        chun-hung.wu@mediatek.com, andy.teng@mediatek.com
References: <20200509093716.21010-1-stanley.chu@mediatek.com>
 <20200509093716.21010-5-stanley.chu@mediatek.com>
From:   "Asutosh Das (asd)" <asutoshd@codeaurora.org>
Message-ID: <635f91f6-3a27-ffdd-4021-67705d4063fc@codeaurora.org>
Date:   Mon, 11 May 2020 19:19:42 -0700
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On 5/9/2020 2:37 AM, Stanley Chu wrote:
> Change the WriteBooster policy to keep VCC on during
> runtime suspend if available WriteBooster buffer is less
> than 80%.
> 
> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
> ---
>   drivers/scsi/ufs/ufs-mediatek.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
> index 56620f7d88ce..94e97701f456 100644
> --- a/drivers/scsi/ufs/ufs-mediatek.c
> +++ b/drivers/scsi/ufs/ufs-mediatek.c
> @@ -271,6 +271,7 @@ static int ufs_mtk_init(struct ufs_hba *hba)
>   
>   	/* Enable WriteBooster */
>   	hba->caps |= UFSHCD_CAP_WB_EN;
> +	hba->vps->wb_flush_threshold = UFS_WB_BUF_REMAIN_PERCENT(80);
>   
>   	/*
>   	 * ufshcd_vops_init() is invoked after
> 

Patchset looks good to me.

Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>


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