scsi: ufs-mediatek: Fix imprecise waiting time for ref-clk control
authorStanley Chu <stanley.chu@mediatek.com>
Mon, 1 Jun 2020 10:46:42 +0000 (18:46 +0800)
committerMartin K. Petersen <martin.petersen@oracle.com>
Tue, 16 Jun 2020 03:06:39 +0000 (23:06 -0400)
commitfb43337cd4cff6639b174e3b6766e6eade523836
treeec6de8d7d90a652bc3eef23cebb94f867df4b2c6
parent55f4b1f73631a0817717fe6e98517de51b4c3527
scsi: ufs-mediatek: Fix imprecise waiting time for ref-clk control

Currently ref-clk control timeout is implemented by jiffies. However
jiffies is not accurate enough thus "false timeout" may happen.

Use more accurate delay mechanism instead, i.e. ktime.

Link: https://lore.kernel.org/r/20200601104646.15436-2-stanley.chu@mediatek.com
Reviewed-by: Andy Teng <andy.teng@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>
drivers/scsi/ufs/ufs-mediatek.c
drivers/scsi/ufs/ufs-mediatek.h