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authorThierry Reding <thierry.reding@gmail.com>2013-09-18 15:24:43 +0200
committerGrant Likely <grant.likely@linaro.org>2013-10-24 11:50:34 +0100
commit3da5278727a895d49a601f67fd49dffa0b80f9a5 (patch)
tree7cf2db539bcf5e3338e69bd51762c8ada02437ed
parenta9f10ca76d784023fc45f01f025b54e9960f4ec1 (diff)
of/irq: Rework of_irq_count()
The of_irq_to_resource() helper that is used to implement of_irq_count() tries to resolve interrupts and in fact creates a mapping for resolved interrupts. That's pretty heavy lifting for something that claims to just return the number of interrupts requested by a given device node. Instead, use the more lightweight of_irq_map_one(), which, despite the name, doesn't create an actual mapping. Perhaps a better name would be of_irq_translate_one(). Signed-off-by: Thierry Reding <treding@nvidia.com> Acked-by: Rob Herring <rob.herring@calxeda.com> [grant.likely: fixup s/of_irq_map_one/of_irq_parse_one/] Signed-off-by: Grant Likely <grant.likely@linaro.org>
-rw-r--r--drivers/of/irq.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index ddea945ec29e..7c4ff122785f 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -373,9 +373,10 @@ EXPORT_SYMBOL_GPL(of_irq_to_resource);
*/
int of_irq_count(struct device_node *dev)
{
+ struct of_phandle_args irq;
int nr = 0;
- while (of_irq_to_resource(dev, nr, NULL))
+ while (of_irq_parse_one(dev, nr, &irq) == 0)
nr++;
return nr;

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