--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -619,6 +619,7 @@ struct ath_softc {
 	u16 curtxpow;
 	bool ps_enabled;
 	bool ps_idle;
+	bool ps_fullsleep;
 	short nbcnvifs;
 	short nvifs;
 	unsigned long ps_usecount;
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -118,9 +118,10 @@ void ath9k_ps_restore(struct ath_softc *
 	if (--sc->ps_usecount != 0)
 		goto unlock;
 
-	if (sc->ps_idle)
+	if (sc->ps_idle && (sc->ps_flags & PS_WAIT_FOR_TX_ACK)) {
 		mode = ATH9K_PM_FULL_SLEEP;
-	else if (sc->ps_enabled &&
+		sc->ps_fullsleep = true;
+	} else if (sc->ps_enabled &&
 		 !(sc->ps_flags & (PS_WAIT_FOR_BEACON |
 			      PS_WAIT_FOR_CAB |
 			      PS_WAIT_FOR_PSPOLL_DATA |
@@ -275,6 +276,7 @@ static bool ath_complete_reset(struct at
 			       sc->config.txpowlimit, &sc->curtxpow);
 	ath9k_hw_set_interrupts(ah);
 	ath9k_hw_enable_interrupts(ah);
+	sc->ps_fullsleep = false;
 
 	if (!(sc->sc_flags & (SC_OP_OFFCHANNEL)) && start) {
 		if (sc->sc_flags & SC_OP_BEACONS)
@@ -332,7 +334,8 @@ static int ath_reset_internal(struct ath
 		hchan = ah->curchan;
 	}
 
-	if (fastcc && !ath9k_hw_check_alive(ah))
+	if (fastcc && (sc->ps_fullsleep ||
+	    !ath9k_hw_check_alive(ah)))
 		fastcc = false;
 
 	if (!ath_prepare_reset(sc, retry_tx, flush))
@@ -1173,6 +1176,13 @@ static void ath9k_tx(struct ieee80211_hw
 		}
 	}
 
+	/*
+	 * Cannot tx while the hardware is in full sleep, it first needs a full
+	 * chip reset to recover from that
+	 */
+	if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_FULL_SLEEP))
+		goto exit;
+
 	if (unlikely(sc->sc_ah->power_mode != ATH9K_PM_AWAKE)) {
 		/*
 		 * We are using PS-Poll and mac80211 can request TX while in
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1983,7 +1983,7 @@ static void ath_tx_complete(struct ath_s
 		skb_pull(skb, padsize);
 	}
 
-	if (sc->ps_flags & PS_WAIT_FOR_TX_ACK) {
+	if ((sc->ps_flags & PS_WAIT_FOR_TX_ACK) && !txq->axq_depth) {
 		sc->ps_flags &= ~PS_WAIT_FOR_TX_ACK;
 		ath_dbg(common, ATH_DBG_PS,
 			"Going back to sleep after having received TX status (0x%lx)\n",