--- zzzz-none-000/linux-4.4.60/drivers/mailbox/Makefile	2017-04-08 07:53:53.000000000 +0000
+++ scorpion-7490-727/linux-4.4.60/drivers/mailbox/Makefile	2021-02-04 17:41:59.000000000 +0000
@@ -17,3 +17,5 @@
 obj-$(CONFIG_BCM2835_MBOX)	+= bcm2835-mailbox.o
 
 obj-$(CONFIG_STI_MBOX)		+= mailbox-sti.o
+
+obj-$(CONFIG_QCOM_APCS_IPC)     += qcom-apcs-ipc-mailbox.o