Apple SoC mailboxes

modulename: apple-mailbox.ko

configname: CONFIG_APPLE_MAILBOX

Linux Kernel Configuration
└─>Device Drivers
└─>SOC (System On Chip) specific Drivers
└─>Apple SoC drivers
└─>Apple SoC mailboxes
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
Apple SoCs have various co-processors required for certain
peripherals to work (NVMe, display controller, etc.). This
driver adds support for the mailbox controller used to
communicate with those.

Say Y here if you have an Apple SoC.

source code:
depends
CONFIG_PM
CONFIG_ARCH_APPLE or CONFIG_COMPILE_TEST
CONFIG_ARCH_APPLE or CONFIG_64BIT
CONFIG_COMPILE_TEST