[PATCH v1] scsi: ufs-mediatek: fix HOST_PA_TACTIVATE quirk for Samsung UFS Devices

[Stanley Chu]

Device quirk "UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE" is enabled for all
Samsung devices by default currently.

However MediaTek UFS host requires different host's PA_TACTIVATE
configuration. Hence clear this quirk first and then apply vendor-specific
value in vops callback.

Signed-off-by: Stanley Chu <stanley.chu@xxxxxxxxxxxx>
---
 drivers/scsi/ufs/ufs-mediatek.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index de650822c9d9..3b0e575d7460 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -533,8 +533,10 @@ static int ufs_mtk_apply_dev_quirks(struct ufs_hba *hba)
 	struct ufs_dev_info *dev_info = &hba->dev_info;
 	u16 mid = dev_info->wmanufacturerid;
 
-	if (mid == UFS_VENDOR_SAMSUNG)
+	if (mid == UFS_VENDOR_SAMSUNG) {
+		hba->dev_quirks &= ~UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE;
 		ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TACTIVATE), 6);
+	}
 
 	/*
 	 * Decide waiting time before gating reference clock and
-- 
2.18.0