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

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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>
This commit is contained in:
Bjorn Helgaas
2011-10-28 16:26:16 -06:00
committed by Jesse Barnes
parent a2f33da11a
commit 37d15909ff
21 changed files with 104 additions and 111 deletions
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27
arch/arm/kernel/bios32.c
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@@ -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)