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authorJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2012-04-09 19:36:36 +0800
committerNicolas Ferre <nicolas.ferre@atmel.com>2012-07-02 14:26:58 +0200
commitc65739437045c351a2a0ddb834719b9d616d4d47 (patch)
tree826ed94708ffb268b978dfe65c7d3b8fe2d29832 /arch/arm/mach-at91/irq.c
parent42a859daaf6af4d234fcf964a421666d5cca3f6a (diff)
ARM: at91: aic add dt support for external irqs
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'arch/arm/mach-at91/irq.c')
-rw-r--r--arch/arm/mach-at91/irq.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/irq.c b/arch/arm/mach-at91/irq.c
index 2d5d4c88a527..df8605fd7bad 100644
--- a/arch/arm/mach-at91/irq.c
+++ b/arch/arm/mach-at91/irq.c
@@ -194,6 +194,10 @@ static struct irq_domain_ops at91_aic_irq_ops = {
int __init at91_aic_of_init(struct device_node *node,
struct device_node *parent)
{
+ struct property *prop;
+ const __be32 *p;
+ u32 val;
+
at91_aic_base = of_iomap(node, 0);
at91_aic_np = node;
@@ -202,6 +206,14 @@ int __init at91_aic_of_init(struct device_node *node,
if (!at91_aic_domain)
panic("Unable to add AIC irq domain (DT)\n");
+ at91_extern_irq = 0;
+ of_property_for_each_u32(node, "atmel,external-irqs", prop, p, val) {
+ if (val > 31)
+ pr_warn("AIC: external irq %d > 31 skip it\n", val);
+ else
+ at91_extern_irq |= (1 << val);
+ }
+
irq_set_default_host(at91_aic_domain);
at91_aic_hw_init(NR_AIC_IRQS);