PSCI CPU idle Domain

modulename: cpuidle-psci-domain.ko

configname: CONFIG_ARM_PSCI_CPUIDLE_DOMAIN

Linux Kernel Configuration
└─>Power management and ACPI options
└─>CPU Idle
└─>ARM CPU Idle Drivers
└─>PSCI CPU idle Domain
In linux kernel since version 5.1 (release Date: 2019-05-05)  
Select this to enable the PSCI based CPUidle driver to use PM domains,
which is needed to support the hierarchical DT based layout of the
idle states.

source code:
drivers/cpuidle/cpuidle-psci-domain.c