CONFIG_REGULATOR_ROHM (not configurable)

modulename: rohm-regulator.ko

configname: CONFIG_REGULATOR_ROHM

Linux Kernel Configuration
└─>Device Drivers
└─>Voltage and Current Regulator Support
└─>REGULATOR_ROHM
In linux kernel since version 5.1 (release Date: 2019-05-05)  
source code:
drivers/regulator/rohm-regulator.c