OPP_EVENT_ADD    1420 drivers/opp/core.c 	blocking_notifier_call_chain(&opp_table->head, OPP_EVENT_ADD, new_opp);
OPP_EVENT_ADD     642 drivers/opp/of.c 	blocking_notifier_call_chain(&opp_table->head, OPP_EVENT_ADD, new_opp);