--- zzzz-none-000/linux-4.4.271/drivers/mailbox/Kconfig	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/drivers/mailbox/Kconfig	2023-04-19 10:22:29.000000000 +0000
@@ -81,8 +81,17 @@
 config MAILBOX_TEST
 	tristate "Mailbox Test Client"
 	depends on OF
+	default n
 	help
 	  Test client to help with testing new Controller driver
 	  implementations.
 
+config QCOM_APCS_IPC
+	tristate "Qualcomm Technology Inc APCS IPC driver"
+	depends on ARCH_QCOM || COMPILE_TEST
+	help
+	Say y here to enable support for the APCS IPC mailbox driver,
+	providing an interface for invoking the inter-process communication
+	signals from the application processor to other masters.
+
 endif