CONFIG_TANGO_IRQ (not configurable)

modulename: irq-tango.ko

configname: CONFIG_TANGO_IRQ

Linux Kernel Configuration
└─>Device Drivers
└─>IRQ chip support
└─>TANGO_IRQ
In linux kernel since version 4.1 (release Date: 2015-06-21)  
source code:
drivers/irqchip/irq-tango.c
selects
CONFIG_IRQ_DOMAIN
CONFIG_GENERIC_IRQ_CHIP

is depended by
CONFIG_ARCH_TANGO