of_get_pci_domain_nr
ret = of_get_pci_domain_nr(dn);
domain = of_get_pci_domain_nr(node);
slot = of_get_pci_domain_nr(dev->of_node);
domain_nr = of_get_pci_domain_nr(dev->of_node);
EXPORT_SYMBOL_GPL(of_get_pci_domain_nr);
domain_nr = of_get_pci_domain_nr(np);
domain_nr = of_get_pci_domain_nr(parent->of_node);
if (parent && of_get_pci_domain_nr(parent->of_node) == domain_nr)
int of_get_pci_domain_nr(struct device_node *node);