* [PATCH] scsi: ufs: rockchip: Improve RX noise immunity
@ 2026-10-29 7:24 Shawn Lin
2026-11-05 3:26 ` Martin K. Petersen
0 siblings, 1 reply; 2+ messages in thread
From: Shawn Lin @ 2026-10-29 7:24 UTC (permalink / raw)
To: James E . J . Bottomley, Martin K . Petersen
Cc: Heiko Stuebner, linux-rockchip, linux-scsi, Shawn Lin
Program VND_RX_SAVE_DET_CTRL for each RX lane to raise the receiver's
tolerance against short transients on the incoming signal, as recommended
by the Rockchip PHY team.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
---
drivers/ufs/host/ufs-rockchip.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/ufs/host/ufs-rockchip.c b/drivers/ufs/host/ufs-rockchip.c
index bac68f238e1c..87308c9b1070 100644
--- a/drivers/ufs/host/ufs-rockchip.c
+++ b/drivers/ufs/host/ufs-rockchip.c
@@ -82,6 +82,7 @@ static int ufs_rockchip_rk3576_phy_init(struct ufs_hba *hba)
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(VND_RX_LINERESET_PVALUE2, SEL_RX_LANE0 + i), 0x02);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(VND_RX_LINERESET_OPTION, SEL_RX_LANE0 + i), 0xf6);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(VND_RX_POWER_SAVING_CTRL, SEL_RX_LANE0 + i), 0x69);
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(VND_RX_SAVE_DET_CTRL, SEL_RX_LANE0 + i), 0x18);
}
/* disable the mphy DME_SET cfg */
--
2.25.1
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