--- zzzz-none-000/linux-4.1.52/drivers/tty/serial/Makefile	2018-05-28 02:26:45.000000000 +0000
+++ bcm63-7530ax-731/linux-4.1.52/drivers/tty/serial/Makefile	2022-03-02 11:37:13.000000000 +0000
@@ -22,6 +22,9 @@
 
 obj-$(CONFIG_SERIAL_AMBA_PL010) += amba-pl010.o
 obj-$(CONFIG_SERIAL_AMBA_PL011) += amba-pl011.o
+ifeq ($(CONFIG_AVM_ENHANCED),y)
+obj-$(CONFIG_SERIAL_AMBA_PL011) += amba-pl011-dectuart.o
+endif
 obj-$(CONFIG_SERIAL_CLPS711X) += clps711x.o
 obj-$(CONFIG_SERIAL_PXA) += pxa.o
 obj-$(CONFIG_SERIAL_PNX8XXX) += pnx8xxx_uart.o