RZT2H_ICU_NUM_IRQ
for (i = 0; i < RZT2H_ICU_NUM_IRQ; i++) {
irq_domain = irq_domain_create_hierarchy(parent_domain, 0, RZT2H_ICU_NUM_IRQ,
struct irq_fwspec fwspec[RZT2H_ICU_NUM_IRQ];