ath9k: wake hardware during AMPDU TX actions
AMDPDU actions poke hardware for TX operation, as such
we want to turn hardware on for these actions. AMDPU RX operations
do not require hardware on as nothing is done in hardware for
those actions. Without this we cannot guarantee hardware has
been programmed correctly for each AMPDU TX action.
Cc: stable@kernel.org
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 623ade89..996eb90 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -3105,15 +3105,21 @@
case IEEE80211_AMPDU_RX_STOP:
break;
case IEEE80211_AMPDU_TX_START:
+ ath9k_ps_wakeup(sc);
ath_tx_aggr_start(sc, sta, tid, ssn);
ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ ath9k_ps_restore(sc);
break;
case IEEE80211_AMPDU_TX_STOP:
+ ath9k_ps_wakeup(sc);
ath_tx_aggr_stop(sc, sta, tid);
ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ ath9k_ps_restore(sc);
break;
case IEEE80211_AMPDU_TX_OPERATIONAL:
+ ath9k_ps_wakeup(sc);
ath_tx_aggr_resume(sc, sta, tid);
+ ath9k_ps_restore(sc);
break;
default:
ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL,