otx2_mbox_busy_poll_for_rsp
EXPORT_SYMBOL(otx2_mbox_busy_poll_for_rsp);
int otx2_mbox_busy_poll_for_rsp(struct otx2_mbox *mbox, int devid);
err = otx2_mbox_busy_poll_for_rsp(&mbox->mbox, 0);