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Merge branch 'pci/rafael-set-root-bridge-handle' into next

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* pci/rafael-set-root-bridge-handle:
  ACPI / PCI: Set root bridge ACPI handle in advance
This commit is contained in:
Bjorn Helgaas
2013-01-17 16:00:36 -07:00
parent b7040469de 6c0cc950ae
commit 708b59bfe1
8 changed files with 38 additions and 38 deletions
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19
drivers/pci/pci-acpi.c
View File

@@ -302,24 +302,6 @@ static int acpi_pci_find_device(struct device *dev, acpi_handle *handle)
return 0;
}
static int acpi_pci_find_root_bridge(struct device *dev, acpi_handle *handle)
{
int num;
unsigned int seg, bus;
/*
* The string should be the same as root bridge's name
* Please look at 'pci_scan_bus_parented'
*/
num = sscanf(dev_name(dev), "pci%04x:%02x", &seg, &bus);
if (num != 2)
return -ENODEV;
*handle = acpi_get_pci_rootbridge_handle(seg, bus);
if (!*handle)
return -ENODEV;
return 0;
}
static void pci_acpi_setup(struct device *dev)
{
struct pci_dev *pci_dev = to_pci_dev(dev);
@@ -378,7 +360,6 @@ static void pci_acpi_cleanup(struct device *dev)
static struct acpi_bus_type acpi_pci_bus = {
.bus = &pci_bus_type,
.find_device = acpi_pci_find_device,
.find_bridge = acpi_pci_find_root_bridge,
.setup = pci_acpi_setup,
.cleanup = pci_acpi_cleanup,
};

16
drivers/pci/probe.c
View File

@@ -1632,6 +1632,18 @@ unsigned int pci_scan_child_bus(struct pci_bus *bus)
return max;
}
/**
* pcibios_root_bridge_prepare - Platform-specific host bridge setup.
* @bridge: Host bridge to set up.
*
* Default empty implementation. Replace with an architecture-specific setup
* routine, if necessary.
*/
int __weak pcibios_root_bridge_prepare(struct pci_host_bridge *bridge)
{
return 0;
}
struct pci_bus *pci_create_root_bus(struct device *parent, int bus,
struct pci_ops *ops, void *sysdata, struct list_head *resources)
{
@@ -1665,6 +1677,10 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus,
bridge->dev.parent = parent;
bridge->dev.release = pci_release_bus_bridge_dev;
dev_set_name(&bridge->dev, "pci%04x:%02x", pci_domain_nr(b), bus);
error = pcibios_root_bridge_prepare(bridge);
if (error)
goto bridge_dev_reg_err;
error = device_register(&bridge->dev);
if (error)
goto bridge_dev_reg_err;