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powerpc/pci: Add pci_find_controller_for_domain()

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Add a helper to find the pci_controller structure based on the domain
number / phb id.

Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Reviewed-by: Sam Bobroff <sbobroff@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Oliver O'Halloran
2019-02-15 11:48:15 +11:00
committed by Michael Ellerman
parent c8f02f2108
commit 67060cb1ff
2 changed files with 13 additions and 0 deletions
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2
arch/powerpc/include/asm/pci-bridge.h
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@@ -273,6 +273,8 @@ extern int pcibios_map_io_space(struct pci_bus *bus);
extern struct pci_controller *pci_find_hose_for_OF_device(
struct device_node* node);
extern struct pci_controller *pci_find_controller_for_domain(int domain_nr);
/* Fill up host controller resources from the OF node */
extern void pci_process_bridge_OF_ranges(struct pci_controller *hose,
struct device_node *dev, int primary);