Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   gregkh@linuxfoundation.org
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Avri Altman <avri.altman@wdc.com>,
        Stanley Chu <stanley.chu@mediatek.com>,
        "Martin K. Petersen" <martin.petersen@oracle.com>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.11 18/36] scsi: ufs-mediatek: Enable UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL
Date:   Wed, 10 Mar 2021 14:23:31 +0100
Message-Id: <20210310132321.086618126@linuxfoundation.org>
In-Reply-To: <20210310132320.510840709@linuxfoundation.org>
References: <20210310132320.510840709@linuxfoundation.org>
User-Agent: quilt/0.66
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

From: Stanley Chu <stanley.chu@mediatek.com>

[ 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@mediatek.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 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 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)
-- 
2.30.1