MBOX_OWNER_FW
ret = (v == MBOX_OWNER_FW) ? -EBUSY : -ETIMEDOUT;
t4_write_reg(adap, ctl_reg, MBMSGVALID_F | MBOWNER_V(MBOX_OWNER_FW));
ret = (v == MBOX_OWNER_FW) ? -EBUSY : -ETIMEDOUT;
MBMSGVALID_F | MBOWNER_V(MBOX_OWNER_FW));