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>

2 files changed, 5 insertions, 12 deletions

diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index 17a59b6e521f..5c5a0bc06709 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -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);
 }
diff --git a/arch/arm/mach-integrator/pci.c b/arch/arm/mach-integrator/pci.c
index af7d3ff013ec..2fdb95433f0a 100644
--- a/arch/arm/mach-integrator/pci.c
+++ b/arch/arm/mach-integrator/pci.c
@@ -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);
 }