BCM2835 Audio

modulename: snd-bcm2835.ko

configname: CONFIG_SND_BCM2835

Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>Broadcom VideoCore support
└─>Advanced Linux Sound Architecture
└─>BCM2835 Audio
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Say Y or M if you want to support BCM2835 built in audio

source code: