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: Peter Wang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Bart Van Assche <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>

Author: ptr324

drivers/ufs/core/ufshcd.c

@@ -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);