diff mbox series

[v2,1/3] ufs: core: only suspend clock scaling if scale down

Message ID 20230831130826.5592-2-peter.wang@mediatek.com (mailing list archive)
State Accepted
Headers show
Series Fix abnormal clock scaling behaviors | expand

Commit Message

Peter Wang (王信友) Aug. 31, 2023, 1:08 p.m. UTC 
From: Peter Wang <peter.wang@mediatek.com>

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 <peter.wang@mediatek.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/ufs/core/ufshcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 129446775796..e3672e55efae 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -1458,7 +1458,7 @@  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);