ARM: PCI: provide a default bus scan implementation

Most PCI implementations perform simple root bus scanning.  Rather than
having each group of platforms provide a duplicated bus scan function,
provide the PCI configuration ops structure via the hw_pci structure,
and call the root bus scanning function from core ARM PCI code.

Acked-by: Krzysztof HaƂasa <khc@pm.waw.pl>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-footbridge/cats-pci.c b/arch/arm/mach-footbridge/cats-pci.c
index dc13c87..5cec256 100644
--- a/arch/arm/mach-footbridge/cats-pci.c
+++ b/arch/arm/mach-footbridge/cats-pci.c
@@ -47,8 +47,8 @@
 	.swizzle		= cats_no_swizzle,
 	.map_irq		= cats_map_irq,
 	.nr_controllers		= 1,
+	.ops			= &dc21285_ops,
 	.setup			= dc21285_setup,
-	.scan			= dc21285_scan_bus,
 	.preinit		= dc21285_preinit,
 	.postinit		= dc21285_postinit,
 };