diff --git a/sys/dev/ath/if_ath_tx_edma.c b/sys/dev/ath/if_ath_tx_edma.c
index c465bb98fdb..d65a44c761f 100644
--- a/sys/dev/ath/if_ath_tx_edma.c
+++ b/sys/dev/ath/if_ath_tx_edma.c
@@ -755,11 +755,30 @@ ath_edma_tx_proc(void *arg, int npending)
 {
 	struct ath_softc *sc = (struct ath_softc *) arg;
 
+	ATH_PCU_LOCK(sc);
+	sc->sc_txproc_cnt++;
+	ATH_PCU_UNLOCK(sc);
+
+	ATH_LOCK(sc);
+	ath_power_set_power_state(sc, HAL_PM_AWAKE);
+	ATH_UNLOCK(sc);
+
 #if 0
 	DPRINTF(sc, ATH_DEBUG_TX_PROC, "%s: called, npending=%d\n",
 	    __func__, npending);
 #endif
 	ath_edma_tx_processq(sc, 1);
+
+
+	ATH_PCU_LOCK(sc);
+	sc->sc_txproc_cnt--;
+	ATH_PCU_UNLOCK(sc);
+
+	ATH_LOCK(sc);
+	ath_power_restore_power_state(sc);
+	ATH_UNLOCK(sc);
+
+	ath_tx_kick(sc);
 }
 
 /*