diff options
| author | Daejun Park | 2020-09-02 11:58:52 +0900 |
|---|---|---|
| committer | Martin K. Petersen | 2020-09-15 20:14:01 -0400 |
| commit | 782e2efb749f617209363b1ec1dd5cfc41a427e9 (patch) | |
| tree | 6bb0c7a662b68739881dee056fef358e0644ffbc | |
| parent | 3d49f7426e6c4e9c41d0aa88f0a76616912a383e (diff) | |
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>
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 1d8134e11da8..47c544d4ad85 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -36,8 +36,8 @@ /* NOP OUT retries waiting for NOP IN response */ #define NOP_OUT_RETRIES 10 -/* Timeout after 30 msecs if NOP OUT hangs without response */ -#define NOP_OUT_TIMEOUT 30 /* msecs */ +/* Timeout after 50 msecs if NOP OUT hangs without response */ +#define NOP_OUT_TIMEOUT 50 /* msecs */ /* Query request retries */ #define QUERY_REQ_RETRIES 3 |