diff options
| author |   Andreas Larsson <andreas@gaisler.com> | 2012-10-29 23:26:56 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2012-11-09 16:30:49 -0800 |
| commit | 5cf8f7db8274f68b180ad277dbb0308e72b66efd (patch) | |
| tree | ad0e683218fec13d4d877b4dc56b8436ac023d5f /drivers | |
| parent | sparc: Allow OF_GPIO on sparc. (diff) | |
| download | linux-dev-5cf8f7db8274f68b180ad277dbb0308e72b66efd.tar.xz linux-dev-5cf8f7db8274f68b180ad277dbb0308e72b66efd.zip | |
sparc: Add sparc support for platform_get_irq()
This adds sparc support for platform_get_irq that in the normal case use
platform_get_resource() to get an irq. This standard approach fails for sparc as
there are no resources of type IORESOURCE_IRQ for irqs for sparc.
Cross platform drivers can then use this standard platform function and work on
sparc instead of having to have a special case for sparc.
Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/base/platform.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 8727e9c5eea4..72c776f2a1f5 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -83,9 +83,16 @@ EXPORT_SYMBOL_GPL(platform_get_resource); */ int platform_get_irq(struct platform_device *dev, unsigned int num) { +#ifdef CONFIG_SPARC + /* sparc does not have irqs represented as IORESOURCE_IRQ resources */ + if (!dev || num >= dev->archdata.num_irqs) + return -ENXIO; + return dev->archdata.irqs[num]; +#else struct resource *r = platform_get_resource(dev, IORESOURCE_IRQ, num); return r ? r->start : -ENXIO; +#endif } EXPORT_SYMBOL_GPL(platform_get_irq); |