--- zzzz-none-000/linux-4.1.52/drivers/Makefile	2018-05-28 02:26:45.000000000 +0000
+++ bcm63-7530ax-731/linux-4.1.52/drivers/Makefile	2022-03-02 11:37:12.000000000 +0000
@@ -167,3 +167,6 @@
 obj-$(CONFIG_THUNDERBOLT)	+= thunderbolt/
 obj-$(CONFIG_CORESIGHT)		+= hwtracing/coresight/
 obj-$(CONFIG_ANDROID)		+= android/
+ifdef BCM_KF # defined(CONFIG_BCM_KF_OPTEE)
+obj-$(CONFIG_TEE)			+= tee/
+endif