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author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-22 23:27:17 +0900 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-22 23:27:17 +0900 |
commit | 69c1f05379a34786da96d0fdedc111cdcdecdf6f (patch) | |
tree | 74a0cde11fbc619c227af89e0757036ab20323d0 /drivers/of/irq.c | |
parent | 007dfe5ad6d039df784b44285bae89654eab3258 (diff) | |
parent | 4b660a7f5c8099d88d1a43d8ae138965112592c7 (diff) | |
download | linux-69c1f05379a34786da96d0fdedc111cdcdecdf6f.tar.bz2 |
Merge 3.15-rc6 into staging-next.
This resolves the conflicts in the files:
drivers/iio/adc/Kconfig
drivers/staging/rtl8723au/os_dep/usb_ops_linux.c
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 9bcf2cf19357..5aeb89411350 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 */ |