arm/PCI: convert to pci_scan_root_bus() for correct root bus resources

Convert from pci_scan_bus() to pci_scan_root_bus() and remove root bus
resource fixups.  This fixes the problem of "early" and "header" quirks
seeing incorrect root bus resources.

CC: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

1 files changed, 8 insertions, 19 deletions

diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index 4e60607..f58ba35 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -316,21 +316,6 @@ pdev_fixup_device_resources(struct pci_sys_data *root, struct pci_dev *dev)
 	}
 }
 
-static void __devinit
-pbus_assign_bus_resources(struct pci_bus *bus, struct pci_sys_data *root)
-{
-	struct pci_dev *dev = bus->self;
-	int i;
-
-	if (!dev) {
-		/*
-		 * Assign root bus resources.
-		 */
-		for (i = 0; i < 3; i++)
-			bus->resource[i] = root->resource[i];
-	}
-}
-
 /*
  * pcibios_fixup_bus - Called after each bus is probed,
  * but before its children are examined.
@@ -341,8 +326,6 @@ void pcibios_fixup_bus(struct pci_bus *bus)
 	struct pci_dev *dev;
 	u16 features = PCI_COMMAND_SERR | PCI_COMMAND_PARITY | PCI_COMMAND_FAST_BACK;
 
-	pbus_assign_bus_resources(bus, root);
-
 	/*
 	 * Walk the devices on this bus, working out what we can
 	 * and can't support.
@@ -508,12 +491,18 @@ static void __init pcibios_init_hw(struct hw_pci *hw)
 		sys->busnr   = busnr;
 		sys->swizzle = hw->swizzle;
 		sys->map_irq = hw->map_irq;
-		sys->resource[0] = &ioport_resource;
-		sys->resource[1] = &iomem_resource;
+		INIT_LIST_HEAD(&sys->resources);
 
 		ret = hw->setup(nr, sys);
 
 		if (ret > 0) {
+			if (list_empty(&sys->resources)) {
+				pci_add_resource(&sys->resources,
+						 &ioport_resource);
+				pci_add_resource(&sys->resources,
+						 &iomem_resource);
+			}
+
 			sys->bus = hw->scan(nr, sys);
 
 			if (!sys->bus)