Microchip MCP16502 PMIC

modulename: mcp16502.ko

configname: CONFIG_REGULATOR_MCP16502

Linux Kernel Configuration
└─>Device Drivers
└─>Voltage and Current Regulator Support
└─>Device Tree and Open Firmware support
└─>Microchip MCP16502 PMIC
In linux kernel since version 5 (release Date: 2019-03-03)  
Say y here to support the MCP16502 PMIC. This driver supports
basic operations (get/set voltage, get/set operating mode)
through the regulator interface. In addition it enables
suspend-to-ram/standby transition.

source code: