+--- a/drivers/net/wireless/ath/ath9k/ar9002_calib.c
++++ b/drivers/net/wireless/ath/ath9k/ar9002_calib.c
+@@ -203,7 +203,7 @@ static void ar9002_hw_iqcalibrate(struct
+ i);
+
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+- "Orignal: Chn %diq_corr_meas = 0x%08x\n",
++ "Original: Chn %d iq_corr_meas = 0x%08x\n",
+ i, ah->totalIqCorrMeas[i]);
+
+ iqCorrNeg = 0;
+--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+@@ -226,7 +226,7 @@ static void ar9003_hw_iqcalibrate(struct
+ i);
+
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+- "Orignal: Chn %diq_corr_meas = 0x%08x\n",
++ "Original: Chn %d iq_corr_meas = 0x%08x\n",
+ i, ah->totalIqCorrMeas[i]);
+
+ iqCorrNeg = 0;
+--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
++++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+@@ -808,7 +808,8 @@ void ath9k_htc_ani_work(struct work_stru
+ }
+
+ /* Verify whether we must check ANI */
+- if ((timestamp - common->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) {
++ if (ah->config.enable_ani &&
++ (timestamp - common->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) {
+ aniflag = true;
+ common->ani.checkani_timer = timestamp;
+ }
+--- a/drivers/net/wireless/ath/ath9k/hw.c
++++ b/drivers/net/wireless/ath/ath9k/hw.c
+@@ -504,7 +504,7 @@ static int ath9k_hw_post_init(struct ath
+ return ecode;
+ }
+
+- if (!AR_SREV_9100(ah) && !AR_SREV_9340(ah)) {
++ if (ah->config.enable_ani) {
+ ath9k_hw_ani_setup(ah);
+ ath9k_hw_ani_init(ah);
+ }
+@@ -610,6 +610,10 @@ static int __ath9k_hw_init(struct ath_hw
+ if (!AR_SREV_9300_20_OR_LATER(ah))
+ ah->ani_function &= ~ATH9K_ANI_MRC_CCK;
+
++ /* disable ANI for 9340 */
++ if (AR_SREV_9340(ah))
++ ah->config.enable_ani = false;
++
+ ath9k_hw_init_mode_regs(ah);
+
+ if (!ah->is_pciexpress)
+--- a/drivers/net/wireless/ath/ath9k/main.c
++++ b/drivers/net/wireless/ath/ath9k/main.c
+@@ -118,7 +118,7 @@ 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_flags & (PS_WAIT_FOR_BEACON |
+@@ -286,7 +286,7 @@ static bool ath_complete_reset(struct at
+ ath_start_ani(common);
+ }
+
+- if (ath9k_hw_ops(ah)->antdiv_comb_conf_get && sc->ant_rx != 3) {
++ if ((ah->caps.hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB) && sc->ant_rx != 3) {
+ struct ath_hw_antcomb_conf div_ant_conf;
+ u8 lna_conf;
+
+@@ -332,7 +332,8 @@ static int ath_reset_internal(struct ath
+ hchan = ah->curchan;
+ }
+
+- if (fastcc && !ath9k_hw_check_alive(ah))
++ if (fastcc && (ah->chip_fullsleep ||
++ !ath9k_hw_check_alive(ah)))
+ fastcc = false;
+
+ if (!ath_prepare_reset(sc, retry_tx, flush))
+@@ -561,7 +562,6 @@ void ath_ani_calibrate(unsigned long dat
+ /* Long calibration runs independently of short calibration. */
+ if ((timestamp - common->ani.longcal_timer) >= long_cal_interval) {
+ longcal = true;
+- ath_dbg(common, ATH_DBG_ANI, "longcal @%lu\n", jiffies);
+ common->ani.longcal_timer = timestamp;
+ }
+
+@@ -569,8 +569,6 @@ void ath_ani_calibrate(unsigned long dat
+ if (!common->ani.caldone) {
+ if ((timestamp - common->ani.shortcal_timer) >= short_cal_interval) {
+ shortcal = true;
+- ath_dbg(common, ATH_DBG_ANI,
+- "shortcal @%lu\n", jiffies);
+ common->ani.shortcal_timer = timestamp;
+ common->ani.resetcal_timer = timestamp;
+ }
+@@ -584,8 +582,9 @@ void ath_ani_calibrate(unsigned long dat
+ }
+
+ /* Verify whether we must check ANI */
+- if ((timestamp - common->ani.checkani_timer) >=
+- ah->config.ani_poll_interval) {
++ if (sc->sc_ah->config.enable_ani
++ && (timestamp - common->ani.checkani_timer) >=
++ ah->config.ani_poll_interval) {
+ aniflag = true;
+ common->ani.checkani_timer = timestamp;
+ }
+@@ -605,6 +604,11 @@ void ath_ani_calibrate(unsigned long dat
+ ah->rxchainmask, longcal);
+ }
+
++ ath_dbg(common, ATH_DBG_ANI,
++ "Calibration @%lu finished: %s %s %s, caldone: %s\n", jiffies,
++ longcal ? "long" : "", shortcal ? "short" : "",
++ aniflag ? "ani" : "", common->ani.caldone ? "true" : "false");
++
+ ath9k_ps_restore(sc);
+
+ set_timer:
+@@ -886,82 +890,6 @@ chip_reset:
+ #undef SCHED_INTR
+ }
+
+-static void ath_radio_enable(struct ath_softc *sc, struct ieee80211_hw *hw)
+-{
+- struct ath_hw *ah = sc->sc_ah;
+- struct ath_common *common = ath9k_hw_common(ah);
+- struct ieee80211_channel *channel = hw->conf.channel;
+- int r;
+-
+- ath9k_ps_wakeup(sc);
+- spin_lock_bh(&sc->sc_pcu_lock);
+- atomic_set(&ah->intr_ref_cnt, -1);
+-
+- ath9k_hw_configpcipowersave(ah, false);
+-
+- if (!ah->curchan)
+- ah->curchan = ath9k_cmn_get_curchannel(sc->hw, ah);
+-
+- r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
+- if (r) {
+- ath_err(common,
+- "Unable to reset channel (%u MHz), reset status %d\n",
+- channel->center_freq, r);
+- }
+-
+- ath_complete_reset(sc, true);
+-
+- /* Enable LED */
+- ath9k_hw_cfg_output(ah, ah->led_pin,
+- AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
+- ath9k_hw_set_gpio(ah, ah->led_pin, 0);
+-
+- spin_unlock_bh(&sc->sc_pcu_lock);
+-
+- ath9k_ps_restore(sc);
+-}
+-
+-void ath_radio_disable(struct ath_softc *sc, struct ieee80211_hw *hw)
+-{
+- struct ath_hw *ah = sc->sc_ah;
+- struct ieee80211_channel *channel = hw->conf.channel;
+- int r;
+-
+- ath9k_ps_wakeup(sc);
+-
+- ath_cancel_work(sc);
+-
+- spin_lock_bh(&sc->sc_pcu_lock);
+-
+- /*
+- * Keep the LED on when the radio is disabled
+- * during idle unassociated state.
+- */
+- if (!sc->ps_idle) {
+- ath9k_hw_set_gpio(ah, ah->led_pin, 1);
+- ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
+- }
+-
+- ath_prepare_reset(sc, false, true);
+-
+- if (!ah->curchan)
+- ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
+-
+- r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
+- if (r) {
+- ath_err(ath9k_hw_common(sc->sc_ah),
+- "Unable to reset channel (%u MHz), reset status %d\n",
+- channel->center_freq, r);
+- }
+-
+- ath9k_hw_phy_disable(ah);
+-
+- ath9k_hw_configpcipowersave(ah, true);
+-
+- spin_unlock_bh(&sc->sc_pcu_lock);
+- ath9k_ps_restore(sc);
+-}
+-
+ static int ath_reset(struct ath_softc *sc, bool retry_tx)
+ {
+ int r;
+@@ -1097,6 +1025,9 @@ static int ath9k_start(struct ieee80211_
+ * and then setup of the interrupt mask.
+ */
+ spin_lock_bh(&sc->sc_pcu_lock);
++
++ atomic_set(&ah->intr_ref_cnt, -1);
++
+ r = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
+ if (r) {
+ ath_err(common,
+@@ -1138,6 +1069,18 @@ static int ath9k_start(struct ieee80211_
+ goto mutex_unlock;
+ }
+
++ if (ah->led_pin >= 0) {
++ ath9k_hw_cfg_output(ah, ah->led_pin,
++ AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
++ ath9k_hw_set_gpio(ah, ah->led_pin, 0);
++ }
++
++ /*
++ * Reset key cache to sane defaults (all entries cleared) instead of
++ * semi-random values after suspend/resume.
++ */
++ ath9k_cmn_init_crypto(sc->sc_ah);
++
+ spin_unlock_bh(&sc->sc_pcu_lock);
+
+ if ((ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE) &&
+@@ -1183,6 +1126,13 @@ 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
+@@ -1229,6 +1179,7 @@ static void ath9k_stop(struct ieee80211_
+ struct ath_softc *sc = hw->priv;
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
++ bool prev_idle;
+
+ mutex_lock(&sc->mutex);
+
+@@ -1259,35 +1210,45 @@ static void ath9k_stop(struct ieee80211_
+ * before setting the invalid flag. */
+ ath9k_hw_disable_interrupts(ah);
+
+- if (!(sc->sc_flags & SC_OP_INVALID)) {
+- ath_drain_all_txq(sc, false);
+- ath_stoprecv(sc);
+- ath9k_hw_phy_disable(ah);
+- } else
+- sc->rx.rxlink = NULL;
++ spin_unlock_bh(&sc->sc_pcu_lock);
++
++ /* we can now sync irq and kill any running tasklets, since we already
++ * disabled interrupts and not holding a spin lock */
++ synchronize_irq(sc->irq);
++ tasklet_kill(&sc->intr_tq);
++ tasklet_kill(&sc->bcon_tasklet);
++
++ prev_idle = sc->ps_idle;
++ sc->ps_idle = true;
++
++ spin_lock_bh(&sc->sc_pcu_lock);
++
++ if (ah->led_pin >= 0) {
++ ath9k_hw_set_gpio(ah, ah->led_pin, 1);
++ ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
++ }
++
++ ath_prepare_reset(sc, false, true);
+
+ if (sc->rx.frag) {
+ dev_kfree_skb_any(sc->rx.frag);
+ sc->rx.frag = NULL;
+ }
+
+- /* disable HAL and put h/w to sleep */
+- ath9k_hw_disable(ah);
++ if (!ah->curchan)
++ ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
+
+- spin_unlock_bh(&sc->sc_pcu_lock);
++ ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
++ ath9k_hw_phy_disable(ah);
+
+- /* we can now sync irq and kill any running tasklets, since we already
+- * disabled interrupts and not holding a spin lock */
+- synchronize_irq(sc->irq);
+- tasklet_kill(&sc->intr_tq);
+- tasklet_kill(&sc->bcon_tasklet);
++ ath9k_hw_configpcipowersave(ah, true);
+
+- ath9k_ps_restore(sc);
++ spin_unlock_bh(&sc->sc_pcu_lock);
+
+- sc->ps_idle = true;
+- ath_radio_disable(sc, hw);
++ ath9k_ps_restore(sc);
+
+ sc->sc_flags |= SC_OP_INVALID;
++ sc->ps_idle = prev_idle;
+
+ mutex_unlock(&sc->mutex);
+
+@@ -1627,8 +1588,8 @@ static int ath9k_config(struct ieee80211
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
+ struct ieee80211_conf *conf = &hw->conf;
+- bool disable_radio = false;
+
++ ath9k_ps_wakeup(sc);
+ mutex_lock(&sc->mutex);
+
+ /*
+@@ -1639,13 +1600,8 @@ static int ath9k_config(struct ieee80211
+ */
+ if (changed & IEEE80211_CONF_CHANGE_IDLE) {
+ sc->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE);
+- if (!sc->ps_idle) {
+- ath_radio_enable(sc, hw);
+- ath_dbg(common, ATH_DBG_CONFIG,
+- "not-idle: enabling radio\n");
+- } else {
+- disable_radio = true;
+- }
++ if (sc->ps_idle)
++ ath_cancel_work(sc);
+ }
+
+ /*
+@@ -1678,7 +1634,6 @@ static int ath9k_config(struct ieee80211
+
+ if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
+ struct ieee80211_channel *curchan = hw->conf.channel;
+- struct ath9k_channel old_chan;
+ int pos = curchan->hw_value;
+ int old_pos = -1;
+ unsigned long flags;
+@@ -1704,11 +1659,8 @@ static int ath9k_config(struct ieee80211
+ * Preserve the current channel values, before updating
+ * the same channel
+ */
+- if (old_pos == pos) {
+- memcpy(&old_chan, &sc->sc_ah->channels[pos],
+- sizeof(struct ath9k_channel));
+- ah->curchan = &old_chan;
+- }
++ if (ah->curchan && (old_pos == pos))
++ ath9k_hw_getnf(ah, ah->curchan);
+
+ ath9k_cmn_update_ichannel(&sc->sc_ah->channels[pos],
+ curchan, conf->channel_type);
+@@ -1752,18 +1704,12 @@ static int ath9k_config(struct ieee80211
+ ath_dbg(common, ATH_DBG_CONFIG,
+ "Set power: %d\n", conf->power_level);
+ sc->config.txpowlimit = 2 * conf->power_level;
+- ath9k_ps_wakeup(sc);
+ ath9k_cmn_update_txpow(ah, sc->curtxpow,
+ sc->config.txpowlimit, &sc->curtxpow);
+- ath9k_ps_restore(sc);
+- }
+-
+- if (disable_radio) {
+- ath_dbg(common, ATH_DBG_CONFIG, "idle: disabling radio\n");
+- ath_radio_disable(sc, hw);
+ }
+
+ mutex_unlock(&sc->mutex);
++ ath9k_ps_restore(sc);
+
+ return 0;
+ }
+@@ -2331,9 +2277,6 @@ static void ath9k_flush(struct ieee80211
+ return;
+ }
+
+- if (drop)
+- timeout = 1;
+-
+ for (j = 0; j < timeout; j++) {
+ bool npend = false;
+
+@@ -2351,21 +2294,22 @@ static void ath9k_flush(struct ieee80211
+ }
+
+ if (!npend)
+- goto out;
++ break;
+ }
+
+- ath9k_ps_wakeup(sc);
+- spin_lock_bh(&sc->sc_pcu_lock);
+- drain_txq = ath_drain_all_txq(sc, false);
+- spin_unlock_bh(&sc->sc_pcu_lock);
++ if (drop) {
++ ath9k_ps_wakeup(sc);
++ spin_lock_bh(&sc->sc_pcu_lock);
++ drain_txq = ath_drain_all_txq(sc, false);
++ spin_unlock_bh(&sc->sc_pcu_lock);
+
+- if (!drain_txq)
+- ath_reset(sc, false);
++ if (!drain_txq)
++ ath_reset(sc, false);
+
+- ath9k_ps_restore(sc);
+- ieee80211_wake_queues(hw);
++ ath9k_ps_restore(sc);
++ ieee80211_wake_queues(hw);
++ }
+
+-out:
+ ieee80211_queue_delayed_work(hw, &sc->tx_complete_work, 0);
+ mutex_unlock(&sc->mutex);
+ }
+--- a/drivers/net/wireless/ath/ath9k/pci.c
++++ b/drivers/net/wireless/ath/ath9k/pci.c
+@@ -307,12 +307,11 @@ static int ath_pci_suspend(struct device
+ struct ieee80211_hw *hw = pci_get_drvdata(pdev);
+ struct ath_softc *sc = hw->priv;
+
+- ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1);
+-
+ /* The device has to be moved to FULLSLEEP forcibly.
+ * Otherwise the chip never moved to full sleep,
+ * when no interface is up.
+ */
++ ath9k_hw_disable(sc->sc_ah);
+ ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP);
+
+ return 0;
+@@ -334,22 +333,6 @@ static int ath_pci_resume(struct device
+ if ((val & 0x0000ff00) != 0)
+ pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
+
+- ath9k_ps_wakeup(sc);
+- /* Enable LED */
+- ath9k_hw_cfg_output(sc->sc_ah, sc->sc_ah->led_pin,
+- AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
+- ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 0);
+-
+- /*
+- * Reset key cache to sane defaults (all entries cleared) instead of
+- * semi-random values after suspend/resume.
+- */
+- ath9k_cmn_init_crypto(sc->sc_ah);
+- ath9k_ps_restore(sc);
+-
+- sc->ps_idle = true;
+- ath_radio_disable(sc, hw);
+-
+ return 0;
+ }
+
+--- a/drivers/net/wireless/ath/ath9k/xmit.c
++++ b/drivers/net/wireless/ath/ath9k/xmit.c
+@@ -1954,7 +1954,7 @@ 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",
+--- a/include/linux/nl80211.h
++++ b/include/linux/nl80211.h
+@@ -2785,9 +2785,11 @@ enum nl80211_ap_sme_features {
+ * @NL80211_FEATURE_SK_TX_STATUS: This driver supports reflecting back
+ * TX status to the socket error queue when requested with the
+ * socket option.
++ * @NL80211_FEATURE_HT_IBSS: This driver supports IBSS with HT datarates.
+ */
+ enum nl80211_feature_flags {
+ NL80211_FEATURE_SK_TX_STATUS = 1 << 0,
++ NL80211_FEATURE_HT_IBSS = 1 << 1,
+ };
+
+ /**
+--- a/include/net/cfg80211.h
++++ b/include/net/cfg80211.h
+@@ -1149,6 +1149,7 @@ struct cfg80211_ibss_params {
+ u8 *ssid;
+ u8 *bssid;
+ struct ieee80211_channel *channel;
++ enum nl80211_channel_type channel_type;
+ u8 *ie;
+ u8 ssid_len, ie_len;
+ u16 beacon_interval;
+@@ -3270,6 +3271,16 @@ void cfg80211_report_obss_beacon(struct
+ const u8 *frame, size_t len,
+ int freq, gfp_t gfp);
+
++/*
++ * cfg80211_can_beacon_sec_chan - test if ht40 on extension channel can be used
++ * @wiphy: the wiphy
++ * @chan: main channel
++ * @channel_type: HT mode
++ */
++int cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
++ struct ieee80211_channel *chan,
++ enum nl80211_channel_type channel_type);
++
+ /* Logging, debugging and troubleshooting/diagnostic helpers. */
+
+ /* wiphy_printk helpers, similar to dev_printk */