v4.19.13 snapshot.
diff --git a/arch/arm/mach-imx/ulpi.h b/arch/arm/mach-imx/ulpi.h
new file mode 100644
index 0000000..b367902
--- /dev/null
+++ b/arch/arm/mach-imx/ulpi.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __MACH_ULPI_H
+#define __MACH_ULPI_H
+
+#include <linux/usb/ulpi.h>
+
+#ifdef CONFIG_USB_ULPI_VIEWPORT
+static inline struct usb_phy *imx_otg_ulpi_create(unsigned int flags)
+{
+	return otg_ulpi_create(&ulpi_viewport_access_ops, flags);
+}
+#else
+static inline struct usb_phy *imx_otg_ulpi_create(unsigned int flags)
+{
+	return NULL;
+}
+#endif
+
+#endif /* __MACH_ULPI_H */
+