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Exti controller has been differently integrated on stm32mp1 SoC. A parent irq has only one external interrupt. A hierachy domain could be used. Handlers are call by parent, each parent interrupt could be masked and unmasked according to the needs. Signed-off-by: Ludovic Barre <ludovic.barre@st.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>