Cirrus Logic CS47L90/91
configname: CONFIG_MFD_CS47L90
Linux Kernel Configuration
└─>Device Drivers
└─>Multifunction device drivers
└─>Cirrus Logic CS47L90/91
In linux kernel since version 4.2 (release Date: 2015-08-30)
Support for Cirrus Logic CS47L90 and CS47L91 Smart Codecs