diff --git a/drivers/phy/xilinx/phy-zynqmp.c b/drivers/phy/xilinx/phy-zynqmp.c
index 4d697e11d8eb..991be42eef3d 100644
--- a/drivers/phy/xilinx/phy-zynqmp.c
+++ b/drivers/phy/xilinx/phy-zynqmp.c
@@ -759,6 +759,7 @@ static struct phy *xpsgtr_xlate(struct device *dev,
 	phy_type = args->args[1];
 	phy_instance = args->args[2];
 
+	guard(mutex)(&gtr_phy->phy->mutex);
 	ret = xpsgtr_set_lane_type(gtr_phy, phy_type, phy_instance);
 	if (ret < 0) {
 		dev_err(gtr_dev->dev, "Invalid PHY type and/or instance\n");