struct phy *phy;
        struct gpio_desc *standby_gpio;
        struct gpio_desc *enable_gpio;
+       struct mux_state *mux_state;
        u32 max_bitrate = 0;
        int err;
 
        match = of_match_node(can_transceiver_phy_ids, pdev->dev.of_node);
        drvdata = match->data;
 
-       if (of_property_read_bool(dev->of_node, "mux-states")) {
-               struct mux_state *mux_state;
-
-               mux_state = devm_mux_state_get(dev, NULL);
-               if (IS_ERR(mux_state))
-                       return dev_err_probe(&pdev->dev, PTR_ERR(mux_state),
-                                            "failed to get mux\n");
+       mux_state = devm_mux_state_get(dev, NULL);
+       if (IS_ERR(mux_state)) {
+               if (PTR_ERR(mux_state) == -EPROBE_DEFER)
+                       return PTR_ERR(mux_state);
+       } else {
                can_transceiver_phy->mux_state = mux_state;
        }