commit c23bfc3835173f5229b2503e3b616001a28affad
author Russell King <rmk+kernel@arm.linux.org.uk> Sat Mar 10 12:49:16 2012 +0000
committer Russell King <rmk+kernel@arm.linux.org.uk> Sun May 13 17:12:17 2012 +0100
tree 109f74ea29224587bead91289f55f2d30032b615
parent daeb4c0c3bf2df72d0cd6e4330bad9e2e520552b

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 Hałasa <khc@pm.waw.pl>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/kernel/bios32.c

diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index d22e351..00a506f 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -452,7 +452,11 @@
 					 &iomem_resource, sys->mem_offset);
 			}
 
-			sys->bus = hw->scan(nr, sys);
+			if (hw->scan)
+				sys->bus = hw->scan(nr, sys);
+			else
+				sys->bus = pci_scan_root_bus(NULL, sys->busnr,
+						hw->ops, sys, &sys->resources);
 
 			if (!sys->bus)
 				panic("PCI: unable to scan bus!");