Enable Xilinx Zynq MPSoC Power Management driver

modulename: zynqmp_power.ko

configname: CONFIG_ZYNQMP_POWER

Linux Kernel Configuration
└─>Device Drivers
└─>SOC (System On Chip) specific Drivers
└─>Xilinx SoC drivers
└─>Enable Xilinx Zynq MPSoC Power Management driver
In linux kernel since version 5.1 (release Date: 2019-05-05)  
Say yes to enable power management support for ZyqnMP SoC.
This driver uses firmware driver as an interface for power
management request to firmware. It registers isr to handle
power management callbacks from firmware. It registers mailbox client
to handle power management callbacks from firmware.

If in doubt, say N.

source code: