default or selected kernelversion does not have config value CONFIG_CHARGER_BD70528.
Result is shown for kernelversion 6.9.8

ROHM bd70528 charger driver

modulename: bd70528-charger.ko

configname: CONFIG_CHARGER_BD70528

Linux Kernel Configuration
└─>Device Drivers
└─>Power supply class support
└─>ROHM bd70528 charger driver
In linux kernel since version 5.1 (release Date: 2019-05-05)  
Say Y here to enable support for getting battery status
information and altering charger configurations from charger
block of the ROHM BD70528 Power Management IC.

source code: