diff options
| author | Konstantin Vyshetsky <vkon@google.com> | 2022-04-20 17:24:29 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-04-25 23:23:01 -0400 |
| commit | a4e6496fca3f32e997e8a3b5c44e2a1ae09d018e (patch) | |
| tree | c73a6674b409ebfa8a0e2ae7572ff15c35d0055c /drivers/scsi/ufs/ufshcd.c | |
| parent | 565138ac5f8a5330669a20e5f94759764e9165ec (diff) | |
| download | linux-a4e6496fca3f32e997e8a3b5c44e2a1ae09d018e.tar.bz2 | |
scsi: ufs: core: Increase fDeviceInit poll frequency
UFS devices are expected to clear fDeviceInit flag in single digit
milliseconds. Current values of 5 to 10 millisecond sleep add to increased
latency during the initialization and resume path. This CL lowers the sleep
range to 500 to 1000 microseconds.
Link: https://lore.kernel.org/r/20220421002429.3136933-1-bvanassche@acm.org
Acked-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Konstantin Vyshetsky <vkon@google.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/ufs/ufshcd.c')
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 3f9caafa91bf..ba9c7f9ec424 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -4438,7 +4438,7 @@ static int ufshcd_complete_dev_init(struct ufs_hba *hba) QUERY_FLAG_IDN_FDEVICEINIT, 0, &flag_res); if (!flag_res) break; - usleep_range(5000, 10000); + usleep_range(500, 1000); } while (ktime_before(ktime_get(), timeout)); if (err) { |