scsi: ufs: Fix NOP OUT timeout value
authorDaejun Park <daejun7.park@samsung.com>
Wed, 2 Sep 2020 02:58:52 +0000 (11:58 +0900)
committerMartin K. Petersen <martin.petersen@oracle.com>
Wed, 16 Sep 2020 00:14:01 +0000 (20:14 -0400)
commit782e2efb749f617209363b1ec1dd5cfc41a427e9
tree6bb0c7a662b68739881dee056fef358e0644ffbc
parent3d49f7426e6c4e9c41d0aa88f0a76616912a383e
scsi: ufs: Fix NOP OUT timeout value

Boot occasionally fails with some Samsung low-power UFS devices. The reason
is that these devices have a little bit higher latency for NOP OUT
responses. This causes boot to fail because the NOP OUT command is issued
during initialization to check whether the device transport protocol is
ready or not. Increase NOP_OUT_TIMEOUT value from 30 to 50ms.

Link: https://lore.kernel.org/r/231786897.01599016081767.JavaMail.epsvc@epcpadp2
Acked-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/ufs/ufshcd.c