of_match_bus
bus = of_match_bus(p_op->dev.of_node);
pbus = of_match_bus(pp);
bus = of_match_bus(p_op->dev.of_node);
pbus = of_match_bus(pp);
bus = of_match_bus(pp);
bus = of_match_bus(parent);
pbus = of_match_bus(parent);
bus = of_match_bus(parent);
parser->bus = of_match_bus(node);