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PCI: Delay enabling bridges until they're needed

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We currently enable PCI bridges after scanning a bus and assigning
resources.  This is often done in arch code.

This patch changes this so we don't enable a bridge until necessary, i.e.,
until we enable a PCI device behind the bridge.  We do this in the generic
pci_enable_device() path, so this also removes the arch-specific code to
enable bridges.

[bhelgaas: changelog]
Signed-off-by: Yinghai Lu <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
This commit is contained in:
Yinghai Lu 2013-07-22 14:37:17 -07:00 • committed by Bjorn Helgaas
commit 928bea9648
13 changed files with 23 additions and 42 deletions
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1
arch/sh/drivers/pci/pci.c
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@ -69,7 +69,6 @@ static void pcibios_scanbus(struct pci_channel *hose)
pci_bus_size_bridges(bus);
pci_bus_assign_resources(bus);
pci_enable_bridges(bus);
} else {
pci_free_resource_list(&resources);
}