From f9c602f3bd9c79c06ccd7621744472a64e93fd49 Mon Sep 17 00:00:00 2001 From: "Alice.Chao" Date: Fri, 28 May 2021 11:36:22 +0800 Subject: [PATCH] scsi: ufs: ufs-mediatek: Disable HCI before HW reset MediaTek ufshci needs to be disabled before HW reset to avoid potential issues. Link: https://lore.kernel.org/r/20210528033624.12170-3-alice.chao@mediatek.com Reviewed-by: Stanley Chu Signed-off-by: Alice.Chao Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufs-mediatek.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c index 9912e20..bbe0596 100644 --- a/drivers/scsi/ufs/ufs-mediatek.c +++ b/drivers/scsi/ufs/ufs-mediatek.c @@ -844,6 +844,9 @@ static int ufs_mtk_device_reset(struct ufs_hba *hba) { struct arm_smccc_res res; + /* disable hba before device reset */ + ufshcd_hba_stop(hba); + ufs_mtk_device_reset_ctrl(0, res); /* -- 2.7.4