CONFIG_MFD_ATC260X (not configurable)

modulename: atc260x-core.ko

configname: CONFIG_MFD_ATC260X

Linux Kernel Configuration
└─>Device Drivers
└─>Multifunction device drivers
└─>MFD_ATC260X
In linux kernel since version 5.2 (release Date: 2019-07-07)  
source code: