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authorBenedikt Spranger <b.spranger@linutronix.de>2012-05-14 20:48:17 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-05-15 19:44:58 +0400
commit94ca629e40eb7e997be21d8065c25e4f3797b03f (patch)
tree4d6360473045502c736cd28c39ce2399e06f6f84 /drivers/uio
parent7458eab6f4527bce719703eb15fef1cff9e8d9e0 (diff)
downloadlinux-94ca629e40eb7e997be21d8065c25e4f3797b03f.tar.xz
uio_pdrv_genirq: get irq through platform resource if not set otherwise
Platform devices are configured through platform resources. The interrupt in the driver uio_pdrv_genirq is instead configured through a side channel i.e. the platform data structure. Make it possible to use the generic configuration scheme via platform resource. Signed-off-by: Benedikt Spranger <b.spranger@linutronix.de> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: "Hans J. Koch" <hjk@hansjkoch.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/uio')
-rw-r--r--drivers/uio/uio_pdrv_genirq.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/uio/uio_pdrv_genirq.c b/drivers/uio/uio_pdrv_genirq.c
index b98371d93a92..42202cd83158 100644
--- a/drivers/uio/uio_pdrv_genirq.c
+++ b/drivers/uio/uio_pdrv_genirq.c
@@ -146,6 +146,14 @@ static int uio_pdrv_genirq_probe(struct platform_device *pdev)
priv->flags = 0; /* interrupt is enabled to begin with */
priv->pdev = pdev;
+ if (!uioinfo->irq) {
+ ret = platform_get_irq(pdev, 0);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to get IRQ\n");
+ goto bad0;
+ }
+ uioinfo->irq = ret;
+ }
uiomem = &uioinfo->mem[0];
for (i = 0; i < pdev->num_resources; ++i) {