[PATCH 1/4] scsi: ufs: Reduce the clock scaling latency

[Bart Van Assche <bvanassche@xxxxxxx>]

Wait at most 20 ms before rechecking the doorbells instead of waiting
for a potentially long time between doorbell checks.

Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
---
 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 2b4390a1106e..a3fecbb403d3 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1141,7 +1141,7 @@ static int ufshcd_wait_for_doorbell_clr(struct ufs_hba *hba,
 		}
 
 		spin_unlock_irqrestore(hba->host->host_lock, flags);
-		schedule();
+		io_schedule_timeout(msecs_to_jiffies(20));
 		if (ktime_to_us(ktime_sub(ktime_get(), start)) >
 		    wait_timeout_us) {
 			timeout = true;