1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c
index 5bfc02f450e6..d1bd21319d7d 100644
--- a/drivers/infiniband/hw/qib/qib_iba7322.c
+++ b/drivers/infiniband/hw/qib/qib_iba7322.c
@@ -2395,6 +2395,11 @@ static int qib_7322_bringup_serdes(struct qib_pportdata *ppd)
         qib_write_kreg_port(ppd, krp_ibcctrl_a, ppd->cpspec->ibcctrl_a);
         qib_write_kreg(dd, kr_scratch, 0ULL);
 
+        /* ensure previous Tx parameters are not still forced */
+        qib_write_kreg_port(ppd, krp_tx_deemph_override,
+                SYM_MASK(IBSD_TX_DEEMPHASIS_OVERRIDE_0,
+                reset_tx_deemphasis_override));
+
         if (qib_compat_ddr_negotiate) {
                 ppd->cpspec->ibdeltainprog = 1;
                 ppd->cpspec->ibsymsnap = read_7322_creg32_port(ppd,