Cirrus Logic CS47L24 and WM1831

configname: CONFIG_MFD_CS47L24

Linux Kernel Configuration
└─>Device Drivers
└─>Multifunction device drivers
└─>Cirrus Logic CS47L24 and WM1831
In linux kernel since version 4.1 (release Date: 2015-06-21)  
Support for Cirrus Logic CS47L24 and WM1831 low power audio SoC