This is a note to let you know that I've just added the patch titled scsi: ufs-mediatek: Enable UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL to the 5.11-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: scsi-ufs-mediatek-enable-ufshci_quirk_skip_manual_wb.patch and it can be found in the queue-5.11 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit e154dc45e8e46be16dcb9822ce3aaf9c6e375740 Author: Stanley Chu <stanley.chu@xxxxxxxxxxxx> Date: Tue Dec 22 15:29:28 2020 +0800 scsi: ufs-mediatek: Enable UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL [ Upstream commit 46ec9592ffd679fa26142dcb9e5119aad7e60b55 ] Flush during hibern8 is sufficient on MediaTek platforms, thus enable UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL to skip enabling fWriteBoosterBufferFlush during WriteBooster initialization. Link: https://lore.kernel.org/r/20201222072928.32328-1-stanley.chu@xxxxxxxxxxxx Reviewed-by: Avri Altman <avri.altman@xxxxxxx> Signed-off-by: Stanley Chu <stanley.chu@xxxxxxxxxxxx> Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c index 80618af7c872..c55202b92a43 100644 --- a/drivers/scsi/ufs/ufs-mediatek.c +++ b/drivers/scsi/ufs/ufs-mediatek.c @@ -661,6 +661,7 @@ static int ufs_mtk_init(struct ufs_hba *hba) /* Enable WriteBooster */ hba->caps |= UFSHCD_CAP_WB_EN; + hba->quirks |= UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL; hba->vps->wb_flush_threshold = UFS_WB_BUF_REMAIN_PERCENT(80); if (host->caps & UFS_MTK_CAP_DISABLE_AH8)