Mediatek MT6660 Speaker Amplifier

modulename: snd-soc-mt6660.ko

configname: CONFIG_SND_SOC_MT6660

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>CODEC drivers
└─>Mediatek MT6660 Speaker Amplifier
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
MediaTek MT6660 is a smart power amplifier which contain
speaker protection, multi-band DRC, equalizer functions.
Select N if you don't have MT6660 on board.
Select M to build this as module.

source code: