CONFIG_REGMAP_AC97 (not configurable)

modulename: regmap-ac97.ko

configname: CONFIG_REGMAP_AC97

Linux Kernel Configuration
└─>Device Drivers
└─>Generic Driver Options
└─>REGMAP_AC97
In linux kernel since version 3.10 (release Date: 2013-06-30)  
source code:
drivers/base//regmap/regmap-ac97.c