From a4e6496fca3f32e997e8a3b5c44e2a1ae09d018e Mon Sep 17 00:00:00 2001 From: Konstantin Vyshetsky Date: Wed, 20 Apr 2022 17:24:29 -0700 Subject: 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 Signed-off-by: Konstantin Vyshetsky Signed-off-by: Bart Van Assche Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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) { -- cgit v1.2.3