pci_bus_find_domain_nr() retrieves the host bridge domain number in a DT specific way. Factor our pci_bus_find_domain_nr() in a separate DT function (ie of_pci_bus_find_domain_nr()) so that DT code is self contained, paving the way for retrieving domain number in pci_bus_find_domain_nr() with additional firmware methods (ie ACPI).
Signed-off-by: Tomasz Nowicki tn@semihalf.com --- drivers/pci/pci.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index b9a7833..327828d 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -4941,7 +4941,7 @@ int pci_get_new_domain_nr(void) }
#ifdef CONFIG_PCI_DOMAINS_GENERIC -int pci_bus_find_domain_nr(struct pci_bus *bus, struct device *parent) +static int of_pci_bus_find_domain_nr(struct device *parent) { static int use_dt_domains = -1; int domain = -1; @@ -4987,6 +4987,11 @@ int pci_bus_find_domain_nr(struct pci_bus *bus, struct device *parent)
return domain; } + +int pci_bus_find_domain_nr(struct pci_bus *bus, struct device *parent) +{ + return of_pci_bus_find_domain_nr(parent); +} #endif #endif