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authorMichael Ellerman <michael@ellerman.id.au>2007-08-28 18:47:55 +1000
committerPaul Mackerras <paulus@samba.org>2007-09-14 01:33:20 +1000
commit6815800601d3e46b976c868e4e85fb6de32b9133 (patch)
treedf047ed69d7b2b1a744625fd6b2b6f49ada47df4 /arch/powerpc/kernel
parent8528ab84ebe7a1eeed9b0acc808df86663d506c0 (diff)
[POWERPC] Provide a default irq_host match, which matches on an exact of_node
The most common match semantic is an exact match based on the device node. So provide a default implementation that does this, and hook it up if no match routine is specified. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel')
-rw-r--r--arch/powerpc/kernel/irq.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 30fb8e2c5c9..d5c7e4cf2b3 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -418,6 +418,11 @@ irq_hw_number_t virq_to_hw(unsigned int virq)
}
EXPORT_SYMBOL_GPL(virq_to_hw);
+static int default_irq_host_match(struct irq_host *h, struct device_node *np)
+{
+ return h->of_node != NULL && h->of_node == np;
+}
+
__init_refok struct irq_host *irq_alloc_host(struct device_node *of_node,
unsigned int revmap_type,
unsigned int revmap_arg,
@@ -449,6 +454,9 @@ __init_refok struct irq_host *irq_alloc_host(struct device_node *of_node,
host->ops = ops;
host->of_node = of_node;
+ if (host->ops->match == NULL)
+ host->ops->match = default_irq_host_match;
+
spin_lock_irqsave(&irq_big_lock, flags);
/* If it's a legacy controller, check for duplicates and
@@ -523,7 +531,7 @@ struct irq_host *irq_find_host(struct device_node *node)
*/
spin_lock_irqsave(&irq_big_lock, flags);
list_for_each_entry(h, &irq_hosts, link)
- if (h->ops->match != NULL && h->ops->match(h, node)) {
+ if (h->ops->match(h, node)) {
found = h;
break;
}