iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

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

Browse Source 
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>
Link: https://lore.kernel.org/r/20230831130826.5592-2-peter.wang@mediatek.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Peter Wang 2023-08-31 21:08:24 +08:00 committed by Martin K. Petersen
parent b6f2e06301
commit 1d969731b8
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/ufs/core/ufshcd.c
View File

@ -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);