default or selected kernelversion does not have config value CONFIG_REGULATOR_ADP5055.
Result is shown for kernelversion 6.16-rc7

Analog Devices ADP5055 Triple Buck Regulator

modulename: adp5055-regulator.ko

configname: CONFIG_REGULATOR_ADP5055

Linux Kernel Configuration
└─>Device Drivers
└─>Voltage and Current Regulator Support
└─>Analog Devices ADP5055 Triple Buck Regulator
In linux kernel since version 6.1.145 (release Date: 2025-07-14)  
This driver controls an Analog Devices ADP5055 with triple buck
regulators using an I2C interface.

Say M here if you want to include support for the regulator as a
module.

source code: