diff options
| author | Michael Ellerman <michael@ellerman.id.au> | 2007-08-28 18:47:55 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-09-14 01:33:20 +1000 |
| commit | 6815800601d3e46b976c868e4e85fb6de32b9133 (patch) | |
| tree | df047ed69d7b2b1a744625fd6b2b6f49ada47df4 /arch/powerpc/kernel/irq.c | |
| parent | 8528ab84ebe7a1eeed9b0acc808df86663d506c0 (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/irq.c')
| -rw-r--r-- | arch/powerpc/kernel/irq.c | 10 |
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; } |