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PCI: arm: use generic pci_swizzle_interrupt_pin() 

Use the generic pci_swizzle_interrupt_pin() instead of arch-specific code.

Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Bjorn Helgaas 2008-12-09 16:12:12 -07:00 committed by Jesse Barnes
parent 57c2cf71c1
commit f14d766a1a
2 changed files with 5 additions and 12 deletions
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6
arch/arm/kernel/bios32.c
View File

@ -491,17 +491,17 @@ EXPORT_SYMBOL(pcibios_bus_to_resource);
*/
u8 __devinit pci_std_swizzle(struct pci_dev *dev, u8 *pinp)
{
int pin = *pinp - 1;
int pin = *pinp;
while (dev->bus->self) {
pin = (pin + PCI_SLOT(dev->devfn)) & 3;
pin = pci_swizzle_interrupt_pin(dev, pin);
/*
* move up the chain of bridges,
* swizzling as we go.
*/
dev = dev->bus->self;
}
*pinp = pin + 1;
*pinp = pin;
return PCI_SLOT(dev->devfn);
}

11
arch/arm/mach-integrator/pci.c
View File

@ -63,13 +63,7 @@
*
* Where A = pin 1, B = pin 2 and so on and pin=0 = default = A.
* Thus, each swizzle is ((pin-1) + (device#-4)) % 4
*
* The following code swizzles for exactly one bridge.
*/
static inline int bridge_swizzle(int pin, unsigned int slot)
{
return (pin + slot) & 3;
}
/*
* This routine handles multiple bridges.
@ -81,15 +75,14 @@ static u8 __init integrator_swizzle(struct pci_dev *dev, u8 *pinp)
if (pin == 0)
pin = 1;
pin -= 1;
while (dev->bus->self) {
pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn));
pin = pci_swizzle_interrupt_pin(dev, pin);
/*
* move up the chain of bridges, swizzling as we go.
*/
dev = dev->bus->self;
}
*pinp = pin + 1;
*pinp = pin;
return PCI_SLOT(dev->devfn);
}