1 files changed, 31 insertions, 4 deletions

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 961b0ce6ef3e..3436295e0509 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -465,6 +465,7 @@ static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta)
 		an->maxampdu = 1 << (IEEE80211_HTCAP_MAXRXAMPDU_FACTOR +
 				     sta->ht_cap.ampdu_factor);
 		an->mpdudensity = parse_mpdudensity(sta->ht_cap.ampdu_density);
+		an->last_rssi = ATH_RSSI_DUMMY_MARKER;
 	}
 }
 
@@ -1258,6 +1259,7 @@ void ath_detach(struct ath_softc *sc)
 	ath_deinit_leds(sc);
 	cancel_work_sync(&sc->chan_work);
 	cancel_delayed_work_sync(&sc->wiphy_work);
+	cancel_delayed_work_sync(&sc->tx_complete_work);
 
 	for (i = 0; i < sc->num_sec_wiphy; i++) {
 		struct ath_wiphy *aphy = sc->sec_wiphy[i];
@@ -1284,7 +1286,6 @@ void ath_detach(struct ath_softc *sc)
 
 	ath9k_hw_detach(sc->sc_ah);
 	ath9k_exit_debug(sc);
-	ath9k_ps_restore(sc);
 }
 
 static int ath9k_reg_notifier(struct wiphy *wiphy,
@@ -1315,6 +1316,7 @@ static int ath_init(u16 devid, struct ath_softc *sc)
 	spin_lock_init(&sc->sc_resetlock);
 	spin_lock_init(&sc->sc_serial_rw);
 	spin_lock_init(&sc->ani_lock);
+	spin_lock_init(&sc->sc_pm_lock);
 	mutex_init(&sc->mutex);
 	tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc);
 	tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet,
@@ -1540,7 +1542,8 @@ void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
 	hw->max_rates = 4;
 	hw->channel_change_time = 5000;
 	hw->max_listen_interval = 10;
-	hw->max_rate_tries = ATH_11N_TXMAXTRY;
+	/* Hardware supports 10 but we use 4 */
+	hw->max_rate_tries = 4;
 	hw->sta_data_size = sizeof(struct ath_node);
 	hw->vif_data_size = sizeof(struct ath_vif);
 
@@ -1977,6 +1980,8 @@ static int ath9k_start(struct ieee80211_hw *hw)
 
 	ieee80211_wake_queues(hw);
 
+	queue_delayed_work(sc->hw->workqueue, &sc->tx_complete_work, 0);
+
 mutex_unlock:
 	mutex_unlock(&sc->mutex);
 
@@ -2096,8 +2101,6 @@ static void ath9k_stop(struct ieee80211_hw *hw)
 
 	mutex_lock(&sc->mutex);
 
-	ieee80211_stop_queues(hw);
-
 	if (ath9k_wiphy_started(sc)) {
 		mutex_unlock(&sc->mutex);
 		return; /* another wiphy still in use */
@@ -2255,9 +2258,28 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 	struct ath_softc *sc = aphy->sc;
 	struct ieee80211_conf *conf = &hw->conf;
 	struct ath_hw *ah = sc->sc_ah;
+	bool all_wiphys_idle = false, disable_radio = false;
 
 	mutex_lock(&sc->mutex);
 
+	/* Leave this as the first check */
+	if (changed & IEEE80211_CONF_CHANGE_IDLE) {
+
+		spin_lock_bh(&sc->wiphy_lock);
+		all_wiphys_idle =  ath9k_all_wiphys_idle(sc);
+		spin_unlock_bh(&sc->wiphy_lock);
+
+		if (conf->flags & IEEE80211_CONF_IDLE){
+			if (all_wiphys_idle)
+				disable_radio = true;
+		}
+		else if (all_wiphys_idle) {
+			ath_radio_enable(sc);
+			DPRINTF(sc, ATH_DBG_CONFIG,
+				"not-idle: enabling radio\n");
+		}
+	}
+
 	if (changed & IEEE80211_CONF_CHANGE_PS) {
 		if (conf->flags & IEEE80211_CONF_PS) {
 			if (!(ah->caps.hw_caps &
@@ -2325,6 +2347,11 @@ skip_chan_change:
 	if (changed & IEEE80211_CONF_CHANGE_POWER)
 		sc->config.txpowlimit = 2 * conf->power_level;
 
+	if (disable_radio) {
+		DPRINTF(sc, ATH_DBG_CONFIG, "idle: disabling radio\n");
+		ath_radio_disable(sc);
+	}
+
 	mutex_unlock(&sc->mutex);
 
 	return 0;