CONFIG_SND_SOC_LM4857 (not configurable)
modulename: snd-soc-lm4857.ko
configname: CONFIG_SND_SOC_LM4857
Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>CODEC drivers
└─>SND_SOC_LM4857