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parport: Use the PCI IRQ if offered

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PCI parallel port devices can IRQ share so we should stop them hogging
the line and making a mess on modern PC systems.  We know the sharing
side works as the PCMCIA driver has shared the parallel port IRQ for
some time.

Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alan Cox
2009-04-07 15:30:57 +01:00
committed by Linus Torvalds
parent 8e7d91c975
commit 51dcdfec6a
4 changed files with 60 additions and 31 deletions
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3
drivers/parport/parport_cs.c
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@@ -43,6 +43,7 @@
#include <linux/timer.h>
#include <linux/ioport.h>
#include <linux/major.h>
#include <linux/interrupt.h>
#include <linux/parport.h>
#include <linux/parport_pc.h>
@@ -192,7 +193,7 @@ static int parport_config(struct pcmcia_device *link)
p = parport_pc_probe_port(link->io.BasePort1, link->io.BasePort2,
link->irq.AssignedIRQ, PARPORT_DMA_NONE,
&link->dev);
&link->dev, IRQF_SHARED);
if (p == NULL) {
printk(KERN_NOTICE "parport_cs: parport_pc_probe_port() at "
"0x%3x, irq %u failed\n", link->io.BasePort1,