As per specs, e.g, JESD220E chapter 7.2, while powering off the ufs device, RST_N signal should be between VSS(Ground) and VCCQ/VCCQ2. The power down sequence after fixing as below: Power down: 1. Assert RST_N low 2. Turn-off VCC 3. Turn-off VCCQ/VCCQ2 drivers/scsi/ufs/ufs-mediatek.c | 4 ++++ 1 file changed, 4 insertions(+)