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>
diff --git a/drivers/uio/uio_pdrv_genirq.c b/drivers/uio/uio_pdrv_genirq.c
index b98371d..42202cd 100644
--- a/drivers/uio/uio_pdrv_genirq.c
+++ b/drivers/uio/uio_pdrv_genirq.c
@@ -146,6 +146,14 @@
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) {