fdt_add_bus
fdt_add_bus(self, phandle, faa);
fdt_add_bus(self, clocks, faa);
fdt_add_bus(self, clocks, faa);
fdt_add_bus(self, phandle, faa);
fdt_add_bus(self, clocks, faa);
fdt_add_bus(self, clocks, faa);
fdt_add_bus(self, phandle, faa);
fdt_add_bus(self, phandle, faa);
fdt_add_bus(self, phandle, faa);
fdt_add_bus(self, phandle, faa);
fdt_add_bus(self, phandle, faa);
fdt_add_bus(self, phandle, faa);
fdt_add_bus(self, phandle, &sc->sc_faa);
void fdt_add_bus(device_t, int, struct fdt_attach_args *);
fdt_add_bus(self, phandle, faa);
fdt_add_bus(self, child, faa);
fdt_add_bus(self, phandle, NULL);