Messages in this thread Patch in this message | | | From | Thierry Reding <> | Subject | [PATCH v2 01/10] of/irq: Rework of_irq_count() | Date | Wed, 18 Sep 2013 15:24:43 +0200 |
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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> --- drivers/of/irq.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/of/irq.c b/drivers/of/irq.c index 1752988..5f44388 100644 --- a/drivers/of/irq.c +++ b/drivers/of/irq.c @@ -368,9 +368,10 @@ EXPORT_SYMBOL_GPL(of_irq_to_resource); */ int of_irq_count(struct device_node *dev) { + struct of_irq irq; int nr = 0; - while (of_irq_to_resource(dev, nr, NULL)) + while (of_irq_map_one(dev, nr, &irq) == 0) nr++; return nr; -- 1.8.4
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