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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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11
include/linux/parport_pc.h
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@@ -228,10 +228,11 @@ extern void parport_pc_release_resources(struct parport *p);
extern int parport_pc_claim_resources(struct parport *p);
/* PCMCIA code will want to get us to look at a port. Provide a mechanism. */
extern struct parport *parport_pc_probe_port (unsigned long base,
unsigned long base_hi,
int irq, int dma,
struct device *dev);
extern void parport_pc_unregister_port (struct parport *p);
extern struct parport *parport_pc_probe_port(unsigned long base,
unsigned long base_hi,
int irq, int dma,
struct device *dev,
int irqflags);
extern void parport_pc_unregister_port(struct parport *p);
#endif