of_getnode_byname
node = of_getnode_byname(OF_parent(ca->ca_node), "extint-gpio1");
adb_node = of_getnode_byname(ca->ca_node, "adb");
node = of_getnode_byname(OF_parent(ca->ca_node), "extint-gpio1");
node = of_getnode_byname(0, "power-mgt");
extint_node = of_getnode_byname(OF_parent(ca->ca_node), "extint-gpio1");
pmnode = of_getnode_byname(ca->ca_node, "power-mgt");
node = of_getnode_byname(sc->sc_node, fans[n]);
node = of_getnode_byname(sc->sc_node, "smu-i2c-control");
gpio = of_getnode_byname(OF_parent(node), "gpio");
node = of_getnode_byname(OF_peer(node), "pci");
int of_getnode_byname(int, const char *);