ARM: PCI: footbridge: provide a 'no swizzle' function for CATS

CATS sets its swizzle function to zero, which at the moment means
that no swizzling is required.  Make this explicit for CATS.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 6 insertions, 1 deletions

diff --git a/arch/arm/mach-footbridge/cats-pci.c b/arch/arm/mach-footbridge/cats-pci.c
index 32321f66dec4..dc13c873ff53 100644
--- a/arch/arm/mach-footbridge/cats-pci.c
+++ b/arch/arm/mach-footbridge/cats-pci.c
@@ -16,6 +16,11 @@
 /* cats host-specific stuff */
 static int irqmap_cats[] __initdata = { IRQ_PCI, IRQ_IN0, IRQ_IN1, IRQ_IN3 };
 
+static u8 cats_no_swizzle(struct pci_dev *dev, u8 *pin)
+{
+        return 0;
+}
+
 static int __init cats_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
         if (dev->irq >= 255)
@@ -39,7 +44,7 @@ static int __init cats_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  * cards being used (ie, pci-pci bridge based cards)?
  */
 static struct hw_pci cats_pci __initdata = {
-        .swizzle                = NULL,
+        .swizzle                = cats_no_swizzle,
         .map_irq                = cats_map_irq,
         .nr_controllers         = 1,
         .setup                  = dc21285_setup,