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path: root/drivers/irqchip/irq-vic.c
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Diffstat (limited to 'drivers/irqchip/irq-vic.c')
-rw-r--r--drivers/irqchip/irq-vic.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/irqchip/irq-vic.c b/drivers/irqchip/irq-vic.c
index f3f20a3cff50..3c87d925f74c 100644
--- a/drivers/irqchip/irq-vic.c
+++ b/drivers/irqchip/irq-vic.c
@@ -509,9 +509,7 @@ static int __init vic_of_init(struct device_node *node,
void __iomem *regs;
u32 interrupt_mask = ~0;
u32 wakeup_mask = ~0;
-
- if (WARN(parent, "non-root VICs are not supported"))
- return -EINVAL;
+ int parent_irq;
regs = of_iomap(node, 0);
if (WARN_ON(!regs))
@@ -519,11 +517,14 @@ static int __init vic_of_init(struct device_node *node,
of_property_read_u32(node, "valid-mask", &interrupt_mask);
of_property_read_u32(node, "valid-wakeup-mask", &wakeup_mask);
+ parent_irq = of_irq_get(node, 0);
+ if (parent_irq < 0)
+ parent_irq = 0;
/*
* Passing 0 as first IRQ makes the simple domain allocate descriptors
*/
- __vic_init(regs, 0, 0, interrupt_mask, wakeup_mask, node);
+ __vic_init(regs, parent_irq, 0, interrupt_mask, wakeup_mask, node);
return 0;
}