quoted

+#ifdef CONFIG_OF_GPIO
+
+static struct dwapb_platform_data *
+dwapb_gpio_get_pdata_of(struct device *dev) {
+	struct device_node *node, *port_np;
+	struct dwapb_platform_data *pdata;
+	struct dwapb_port_property *pp;
+	int nports;
+	int i;
+
+	node = dev->of_node;
+	if (!node)
+		return ERR_PTR(-ENODEV);

Please replace the #ifdef above with

	if (!IS_ENABLED(CONFIG_OF_GPIO) || !node)

here so get you proper compile-time coverage of the DT code path.

OK, I will improve it.