From: Peter Wang <peter.wang@mediatek.com>
Date: Sat, 16 Oct 2021 08:58:02 +0800
Subject: [PATCH] scsi: ufs: ufs-mediatek: Fix wrong location for ref-clk delay
Git-commit: 25d542a8537455a3335448a3fa53cf3704883389
Patch-mainline: v5.16-rc1
References: jsc#PED-818
Fix the location of delay for ref-clk gating and ungating in
ufs_mtk_setup_ref_clk().
Link: https://lore.kernel.org/r/20211016005802.7729-4-stanley.chu@mediatek.com
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Peter Wang <peter.wang@mediatek.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Hannes Reinecke <hare@suse.com>
---
drivers/scsi/ufs/ufs-mediatek.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index bc193ba46b31..d0a8e1319ab3 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -247,9 +247,9 @@ static int ufs_mtk_setup_ref_clk(struct ufs_hba *hba, bool on)
if (on) {
ufs_mtk_ref_clk_notify(on, res);
- ufshcd_delay_us(host->ref_clk_ungating_wait_us, 10);
ufshcd_writel(hba, REFCLK_REQUEST, REG_UFS_REFCLK_CTRL);
} else {
+ ufshcd_delay_us(host->ref_clk_gating_wait_us, 10);
ufshcd_writel(hba, REFCLK_RELEASE, REG_UFS_REFCLK_CTRL);
}
@@ -274,10 +274,10 @@ static int ufs_mtk_setup_ref_clk(struct ufs_hba *hba, bool on)
out:
host->ref_clk_enabled = on;
- if (!on) {
- ufshcd_delay_us(host->ref_clk_gating_wait_us, 10);
+ if (on)
+ ufshcd_delay_us(host->ref_clk_ungating_wait_us, 10);
+ else
ufs_mtk_ref_clk_notify(on, res);
- }
return 0;
}
--
2.35.3