Broadcom BCM590xx PMU Regulators

modulename: bcm590xx-regulator.ko

configname: CONFIG_REGULATOR_BCM590XX

Linux Kernel Configuration
└─>Device Drivers
└─>Voltage and Current Regulator Support
└─>Broadcom BCM590xx PMU Regulators
In linux kernel since version 3.15 (release Date: 2014-06-08)  
This driver provides support for the voltage regulators on the
BCM590xx PMUs. This will enable support for the software
controllable LDO/Switching regulators.

source code: