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authorKusanagi Kouichi <slash@ac.auone-net.jp>2010-02-06 02:45:33 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-08-02 15:34:59 -0300
commite38030f3ff02684eb9e25e983a03ad318a10a2ea (patch)
tree016340c5da972714624590ce968accb5dc6ab05a /drivers/media/video/cx23885
parentb48592e496e55e4e3e6e7f27d5ba3a229a1db7a6 (diff)
V4L/DVB: cx23885: Enable Message Signaled Interrupts(MSI)
Signed-off-by: Kusanagi Kouichi <slash@ac.auone-net.jp> Signed-off-by: Steven Toth <stoth@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/cx23885')
-rw-r--r--drivers/media/video/cx23885/cx23885-core.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/media/video/cx23885/cx23885-core.c b/drivers/media/video/cx23885/cx23885-core.c
index 161ae7316c9..ff76f64edac 100644
--- a/drivers/media/video/cx23885/cx23885-core.c
+++ b/drivers/media/video/cx23885/cx23885-core.c
@@ -1953,8 +1953,12 @@ static int __devinit cx23885_initdev(struct pci_dev *pci_dev,
goto fail_irq;
}
- err = request_irq(pci_dev->irq, cx23885_irq,
- IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
+ if (!pci_enable_msi(pci_dev))
+ err = request_irq(pci_dev->irq, cx23885_irq,
+ IRQF_DISABLED, dev->name, dev);
+ else
+ err = request_irq(pci_dev->irq, cx23885_irq,
+ IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
if (err < 0) {
printk(KERN_ERR "%s: can't get IRQ %d\n",
dev->name, pci_dev->irq);
@@ -2000,6 +2004,7 @@ static void __devexit cx23885_finidev(struct pci_dev *pci_dev)
/* unregister stuff */
free_irq(pci_dev->irq, dev);
+ pci_disable_msi(pci_dev);
cx23885_dev_unregister(dev);
v4l2_device_unregister(v4l2_dev);