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Commit 638c8851 authored by Paul Burton's avatar Paul Burton Committed by Ralf Baechle
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MIPS: JZ4740: register an irq_domain for the interrupt controller 



When probing the interrupt controller, register an IRQ domain such
that the interrupts can be translated by devicetree code & thus used
from devicetree.

Signed-off-by: default avatarPaul Burton <paul.burton@imgtec.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: Brian Norris <computersforpeace@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/10140/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 69ce4b22

arch/mips/jz4740/irq.c

+6 −0
Original line number Diff line number Diff line
@@ -85,6 +85,7 @@ static int __init jz4740_intc_of_init(struct device_node *node, 
{

	struct irq_chip_generic *gc;

	struct irq_chip_type *ct;

	struct irq_domain *domain;

	int parent_irq;



	parent_irq = irq_of_parse_and_map(node, 0);
@@ -113,6 +114,11 @@ static int __init jz4740_intc_of_init(struct device_node *node, 


	irq_setup_generic_chip(gc, IRQ_MSK(32), 0, 0, IRQ_NOPROBE | IRQ_LEVEL);



	domain = irq_domain_add_legacy(node, num_chips * 32, JZ4740_IRQ_BASE, 0,

				       &irq_domain_simple_ops, NULL);

	if (!domain)

		pr_warn("unable to register IRQ domain\n");



	setup_irq(parent_irq, &jz4740_cascade_action);

	return 0;

}