Machine - MOP500 (Ux500 + AB8500)

modulename: snd-soc-ux500-mach-mop500.ko

configname: CONFIG_SND_SOC_UX500_MACH_MOP500

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>SoC Audio support for Ux500 platform
└─>Machine - MOP500 (Ux500 + AB8500)
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Select this to enable the MOP500 machine-driver.
This will enable platform-drivers for: Ux500
This will enable codec-drivers for: AB8500

source code: