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-iop32x/iq80321.c b/arch/arm/mach-iop32x/iq80321.c
index ac6d962..bf155e6 100644
--- a/arch/arm/mach-iop32x/iq80321.c
+++ b/arch/arm/mach-iop32x/iq80321.c
@@ -102,9 +102,9 @@
 
 static struct hw_pci iq80321_pci __initdata = {
 	.nr_controllers = 1,
+	.ops		= &iop3xx_ops,
 	.setup		= iop3xx_pci_setup,
 	.preinit	= iop3xx_pci_preinit_cond,
-	.scan		= iop3xx_pci_scan_bus,
 	.map_irq	= iq80321_pci_map_irq,
 };