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| author | David S. Miller <davem@davemloft.net> | 2014-05-12 17:19:14 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-05-12 17:19:14 (GMT) |
| commit | 5f013c9bc70214dcacd5fbed5a06c217d6ff9c59 (patch) | |
| tree | 34c3a633000e03bca57d0ce55d8759f86edecc03 /drivers/of/irq.c | |
| parent | 51ee42efa0829cf9e46f8e1c0ab7a9ab6facf3f2 (diff) | |
| parent | 1a466ae96e9f749d02a73315a3e66375e61a61dd (diff) | |
| download | linux-5f013c9bc70214dcacd5fbed5a06c217d6ff9c59.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/ethernet/altera/altera_sgdma.c
net/netlink/af_netlink.c
net/sched/cls_api.c
net/sched/sch_api.c
The netlink conflict dealt with moving to netlink_capable() and
netlink_ns_capable() in the 'net' tree vs. supporting 'tc' operations
in non-init namespaces. These were simple transformations from
netlink_capable to netlink_ns_capable.
The Altera driver conflict was simply code removal overlapping some
void pointer cast cleanups in net-next.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/of/irq.c')
| -rw-r--r-- | drivers/of/irq.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/drivers/of/irq.c b/drivers/of/irq.c index 9bcf2cf..5aeb894 100644 --- a/drivers/of/irq.c +++ b/drivers/of/irq.c @@ -364,7 +364,7 @@ int of_irq_to_resource(struct device_node *dev, int index, struct resource *r) memset(r, 0, sizeof(*r)); /* - * Get optional "interrupts-names" property to add a name + * Get optional "interrupt-names" property to add a name * to the resource. */ of_property_read_string_index(dev, "interrupt-names", index, @@ -380,6 +380,32 @@ int of_irq_to_resource(struct device_node *dev, int index, struct resource *r) EXPORT_SYMBOL_GPL(of_irq_to_resource); /** + * of_irq_get - Decode a node's IRQ and return it as a Linux irq number + * @dev: pointer to device tree node + * @index: zero-based index of the irq + * + * Returns Linux irq number on success, or -EPROBE_DEFER if the irq domain + * is not yet created. + * + */ +int of_irq_get(struct device_node *dev, int index) +{ + int rc; + struct of_phandle_args oirq; + struct irq_domain *domain; + + rc = of_irq_parse_one(dev, index, &oirq); + if (rc) + return rc; + + domain = irq_find_host(oirq.np); + if (!domain) + return -EPROBE_DEFER; + + return irq_create_of_mapping(&oirq); +} + +/** * of_irq_count - Count the number of IRQs a node uses * @dev: pointer to device tree node */ |