+	/* Read rx-internal-delay-ps and update rx_clk delay */
+	if (!of_property_read_u32(pdev->dev.of_node,
+				  "rx-internal-delay-ps", &delay_ps)) {
+		u32 val = min(delay_ps / 100, EIC7700_MAX_DELAY_UNIT);
+
+		eth_dly_param &= ~EIC7700_ETH_RX_ADJ_DELAY;
+		eth_dly_param |= FIELD_PREP(EIC7700_ETH_RX_ADJ_DELAY, val);
+	} else {
+		dev_warn(&pdev->dev, "can't get rx-internal-delay-ps\n");
+	}

The binding specifies the X-internal-delay-ps values are required. So
this should be dev_err_probe() and return -EINVAL to stop the probe.

	Andrew