Gilles Chanteperdrix authored Dec 07, 2015 and Philippe Gerum committed Feb 28, 2016

Children of an irq chip using the handle_fasteoi_irq handler need a way
to call the irq_hold/irq_release parent chip methods instead of the
irq_mask/irq_unmask irq, as these methods mask the virtual irq thus
causing each interrupt to be masked upon first occurence and never be
unmasked.