RTW89_WAIT_COND_IDLE
cur = atomic_cmpxchg(&wait->cond, RTW89_WAIT_COND_IDLE, cond);
if (cur != RTW89_WAIT_COND_IDLE)
atomic_set(&wait->cond, RTW89_WAIT_COND_IDLE);
cur = atomic_cmpxchg(&wait->cond, cond, RTW89_WAIT_COND_IDLE);
atomic_set(&wait->cond, RTW89_WAIT_COND_IDLE);