--- zzzz-none-000/linux-4.1.52/drivers/watchdog/Makefile	2018-05-28 02:26:45.000000000 +0000
+++ bcm63-7530ax-731/linux-4.1.52/drivers/watchdog/Makefile	2022-03-02 11:37:13.000000000 +0000
@@ -186,3 +186,6 @@
 obj-$(CONFIG_MAX63XX_WATCHDOG) += max63xx_wdt.o
 obj-$(CONFIG_SOFT_WATCHDOG) += softdog.o
 obj-$(CONFIG_MENF21BMC_WATCHDOG) += menf21bmc_wdt.o
+ifdef BCM_KF # defined(CONFIG_BCM_KF_WDT)
+obj-$(CONFIG_BCM96XXX_WDT) += bcm96xxx_wdt.o
+endif # BCM_KF # defined(CONFIG_BCM_KF_WDT)