ath9k: fix some ps wakeup/restore issues that led to crashes and other weird behavior

SVN-Revision: 25058

diff --git a/package/mac80211/patches/550-ath9k_fix_ps_wakeup_issues.patch b/package/mac80211/patches/550-ath9k_fix_ps_wakeup_issues.patch
new file mode 100644 (file)
index 0000000..29c4f9f
--- /dev/null
+++ b/package/mac80211/patches/550-ath9k_fix_ps_wakeup_issues.patch
@@ -0,0 +1,61 @@
+--- a/drivers/net/wireless/ath/ath9k/xmit.c
++++ b/drivers/net/wireless/ath/ath9k/xmit.c
+@@ -2111,9 +2111,7 @@ static void ath_tx_complete_poll_work(st
+       if (needreset) {
+               ath_dbg(ath9k_hw_common(sc->sc_ah), ATH_DBG_RESET,
+                       "tx hung, resetting the chip\n");
+-              ath9k_ps_wakeup(sc);
+               ath_reset(sc, true);
+-              ath9k_ps_restore(sc);
+       }
+ 
+       ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work,
+--- a/drivers/net/wireless/ath/ath9k/main.c
++++ b/drivers/net/wireless/ath/ath9k/main.c
+@@ -592,19 +592,16 @@ void ath9k_tasklet(unsigned long data)
+       struct ath_softc *sc = (struct ath_softc *)data;
+       struct ath_hw *ah = sc->sc_ah;
+       struct ath_common *common = ath9k_hw_common(ah);
+-
+       u32 status = sc->intrstatus;
+       u32 rxmask;
+ 
+-      ath9k_ps_wakeup(sc);
+-
+       if (status & ATH9K_INT_FATAL) {
+               ath_reset(sc, true);
+-              ath9k_ps_restore(sc);
+               return;
+       }
+ 
+       spin_lock(&sc->sc_pcu_lock);
++      ath9k_ps_wakeup(sc);
+ 
+       /*
+        * Only run the baseband hang check if beacons stop working in AP or
+@@ -980,6 +977,7 @@ int ath_reset(struct ath_softc *sc, bool
+       /* Stop ANI */
+       del_timer_sync(&common->ani.timer);
+ 
++      ath9k_ps_wakeup(sc);
+       spin_lock_bh(&sc->sc_pcu_lock);
+ 
+       ieee80211_stop_queues(hw);
+@@ -1026,6 +1024,7 @@ int ath_reset(struct ath_softc *sc, bool
+ 
+       /* Start ANI */
+       ath_start_ani(common);
++      ath9k_ps_restore(sc);
+ 
+       return r;
+ }
+@@ -1748,7 +1747,9 @@ static int ath9k_config(struct ieee80211
+ 
+       if (changed & IEEE80211_CONF_CHANGE_POWER) {
+               sc->config.txpowlimit = 2 * conf->power_level;
++              ath9k_ps_wakeup(sc);
+               ath_update_txpow(sc);
++              ath9k_ps_restore(sc);
+       }
+ 
+       if (disable_radio) {