Always-On firmware protocol

modulename: thead,th1520-aon.ko

configname: CONFIG_TH1520_AON_PROTOCOL

Linux Kernel Configuration
└─>Device Drivers
└─>Firmware Drivers
└─>Always-On firmware protocol
In linux kernel since version 6.6.86 (release Date: 2025-04-07)  
Power, clock, and resource management capabilities on the TH1520 SoC are
managed by the E902 core. Firmware running on this core communicates with
the kernel through the Always-On protocol, using hardware mailbox as a medium.
Say yes if you need such capabilities.

source code:
depends
CONFIG_MAILBOX
CONFIG_ARCH_THEAD or CONFIG_COMPILE_TEST

is selected by
CONFIG_TH1520_PM_DOMAINS