diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2011-10-29 00:26:57 +0200 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2012-01-06 21:11:02 +0100 |
| commit | 7c090e5bfaa65b031083605a0a4a780443fa6a08 (patch) | |
| tree | 1d53c17ee34e2693260682ba017208aa92ce814c /arch/mips/pci/pci.c | |
| parent | microblaze/PCI: use pci_scan_root_bus() (diff) | |
| download | linux-7c090e5bfaa65b031083605a0a4a780443fa6a08.tar.xz linux-7c090e5bfaa65b031083605a0a4a780443fa6a08.zip | |
mips/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.
Based on original patch by Deng-Cheng Zhu.
Reference: https://lkml.org/lkml/2011/8/26/89
CC: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Deng-Cheng Zhu <dczhu@mips.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'arch/mips/pci/pci.c')
| -rw-r--r-- | arch/mips/pci/pci.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c index 0586535872cf..fa8e378413b1 100644 --- a/arch/mips/pci/pci.c +++ b/arch/mips/pci/pci.c @@ -81,6 +81,7 @@ static void __devinit pcibios_scanbus(struct pci_controller *hose) { static int next_busno; static int need_domain_info; + LIST_HEAD(resources); struct pci_bus *bus; if (!hose->iommu) @@ -89,7 +90,13 @@ static void __devinit pcibios_scanbus(struct pci_controller *hose) if (hose->get_busno && pci_probe_only) next_busno = (*hose->get_busno)(); - bus = pci_scan_bus(next_busno, hose->pci_ops, hose); + pci_add_resource(&resources, hose->mem_resource); + pci_add_resource(&resources, hose->io_resource); + bus = pci_scan_root_bus(NULL, next_busno, hose->pci_ops, hose, + &resources); + if (!bus) + pci_free_resource_list(&resources); + hose->bus = bus; need_domain_info = need_domain_info || hose->index; @@ -245,15 +252,11 @@ void __devinit pcibios_fixup_bus(struct pci_bus *bus) { /* Propagate hose info into the subordinate devices. */ - struct pci_controller *hose = bus->sysdata; struct list_head *ln; struct pci_dev *dev = bus->self; - if (!dev) { - bus->resource[0] = hose->io_resource; - bus->resource[1] = hose->mem_resource; - } else if (pci_probe_only && - (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) { + if (pci_probe_only && dev && + (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) { pci_read_bridge_bases(bus); pcibios_fixup_device_resources(dev, bus); } |