S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core
T: git git://git.infradead.org/users/jcooper/linux.git irqchip/core
+F: Documentation/devicetree/bindings/interrupt-controller/
F: drivers/irqchip/
IRQ DOMAINS (IRQ NUMBER MAPPING LIBRARY)