From: Paul Burton <paul.burton@xxxxxxxxxx>
When probining the interrupt controller, register an IRQ domain such
that the interrupts can be translated by devicetree code & thus used
from devicetree.
Signed-off-by: Paul Burton <paul.burton@xxxxxxxxxx>
Cc: Lars-Peter Clausen <lars@xxxxxxxxxx>
---
arch/mips/jz4740/irq.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/mips/jz4740/irq.c b/arch/mips/jz4740/irq.c
index 9a8bda3..a620b23 100644
--- a/arch/mips/jz4740/irq.c
+++ b/arch/mips/jz4740/irq.c
@@ -82,6 +82,7 @@ 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);
@@ -110,6 +111,11 @@ 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;
}
--
1.9.1
--
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