Commit 1d969731 authored by Peter Wang's avatar Peter Wang Committed by Martin K. Petersen
Browse files

scsi: ufs: core: Only suspend clock scaling if scaling down 



If clock scale up and suspend clock scaling, ufs will keep high
performance/power mode but no read/write requests on going.  It is logic
wrong and have power concern.

Signed-off-by: default avatarPeter Wang <peter.wang@mediatek.com>
Link: https://lore.kernel.org/r/20230831130826.5592-2-peter.wang@mediatek.com


Reviewed-by: default avatarBart Van Assche <bvanassche@acm.org>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent b6f2e063

drivers/ufs/core/ufshcd.c

+1 −1
Original line number Diff line number Diff line
@@ -1430,7 +1430,7 @@ static int ufshcd_devfreq_target(struct device *dev, 
		ktime_to_us(ktime_sub(ktime_get(), start)), ret);



out:

	if (sched_clk_scaling_suspend_work)

	if (sched_clk_scaling_suspend_work && !scale_up)

		queue_work(hba->clk_scaling.workq,

			   &hba->clk_scaling.suspend_work);