SoC Audio support for i.MX boards with HDMI port

modulename: snd-soc-imx-hdmi.ko

configname: CONFIG_SND_SOC_IMX_HDMI

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>SoC Audio for Freescale CPUs
└─>SoC Audio support for i.MX boards with HDMI port
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
ALSA SoC Audio support with HDMI feature for Freescale SoCs that have
SAI/AUD2HTX and connect with internal HDMI IP or external module
SII902X.
Say Y if you want to add support for SoC audio on an i.MX board with
IMX HDMI.

source code:
sound/soc//fsl/