IDEV_START_PENDING
wait_event(ihost->eventq, !test_bit(IDEV_START_PENDING, &idev->flags));
clear_bit(IDEV_START_PENDING, &idev->flags);
set_bit(IDEV_START_PENDING, &isci_device->flags);
if (test_and_clear_bit(IDEV_START_PENDING, &idev->flags))