AMD Legacy Machine Driver Support

modulename: snd-acp-legacy-mach.ko

configname: CONFIG_SND_SOC_AMD_LEGACY_MACH

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>PCI support
└─>AMD Legacy Machine Driver Support
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
This option enables legacy sound card support for ACP audio.

source code: