ROHM BD71828 and BD71815 Power Management IC

modulename: rohm-bd71828.ko

configname: CONFIG_MFD_ROHM_BD71828

Linux Kernel Configuration
└─>Device Drivers
└─>Multifunction device drivers
└─>Device Tree and Open Firmware support
└─>ROHM BD71828 and BD71815 Power Management IC
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
Select this option to get support for the ROHM BD71828 and BD71815
Power Management ICs. BD71828GW and BD71815AGW are single-chip power
management ICs mainly for battery-powered portable devices.
The BD71828 integrates 7 buck converters and 7 LDOs. The BD71815
has 5 bucks, 7 LDOs, and a boost for driving LEDs. Both ICs provide
also a single-cell linear charger, a Coulomb counter, a real-time
clock (RTC), GPIOs and a 32.768 kHz clock gate.

source code: