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PCI: Add helper functions pci_get[put]_host_bridge_device()

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Add helper functions to get/put the root bus's host bridge device.

Tested-by: Suravee Suthikulpanit <[email protected]> (AMD Seattle)
Signed-off-by: Murali Karicheri <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Catalin Marinas <[email protected]>
Acked-by: Will Deacon <[email protected]>
CC: Joerg Roedel <[email protected]>
CC: Grant Likely <[email protected]>
CC: Rob Herring <[email protected]>
CC: Russell King <[email protected]>
CC: Arnd Bergmann <[email protected]>
This commit is contained in:
Murali Karicheri 2015-03-03 12:52:11 -05:00 • committed by Bjorn Helgaas
commit 6675a601d7
2 changed files with 17 additions and 0 deletions
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14
drivers/pci/host-bridge.c
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@ -23,6 +23,20 @@ static struct pci_host_bridge *find_pci_host_bridge(struct pci_bus *bus)
return to_pci_host_bridge(root_bus->bridge);
}
struct device *pci_get_host_bridge_device(struct pci_dev *dev)
{
struct pci_bus *root_bus = find_pci_root_bus(dev->bus);
struct device *bridge = root_bus->bridge;
kobject_get(&bridge->kobj);
return bridge;
}
void pci_put_host_bridge_device(struct device *dev)
{
kobject_put(&dev->kobj);
}
void pci_set_host_bridge_release(struct pci_host_bridge *bridge,
void (*release_fn)(struct pci_host_bridge *),
void *release_data)