Merge branch 'irq/for-gpio' into irq/core

Merge the request/release callbacks which are in a separate branch for
consumption by the gpio folks.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

4 files changed, 52 insertions, 43 deletions

diff --git a/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h b/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
index 1cc13569b17b..1b6b4d0cfa97 100644
--- a/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
@@ -57,7 +57,7 @@ static const u32 ar9462_2p0_baseband_postamble[][5] = {
         {0x00009e14, 0x37b95d5e, 0x37b9605e, 0x3236605e, 0x32365a5e},
         {0x00009e18, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
         {0x00009e1c, 0x0001cf9c, 0x0001cf9c, 0x00021f9c, 0x00021f9c},
-        {0x00009e20, 0x000003b5, 0x000003b5, 0x000003ce, 0x000003ce},
+        {0x00009e20, 0x000003a5, 0x000003a5, 0x000003a5, 0x000003a5},
         {0x00009e2c, 0x0000001c, 0x0000001c, 0x00000021, 0x00000021},
         {0x00009e3c, 0xcf946220, 0xcf946220, 0xcfd5c782, 0xcfd5c282},
         {0x00009e44, 0x62321e27, 0x62321e27, 0xfe291e27, 0xfe291e27},
@@ -96,7 +96,7 @@ static const u32 ar9462_2p0_baseband_postamble[][5] = {
         {0x0000ae04, 0x001c0000, 0x001c0000, 0x001c0000, 0x00100000},
         {0x0000ae18, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
         {0x0000ae1c, 0x0000019c, 0x0000019c, 0x0000019c, 0x0000019c},
-        {0x0000ae20, 0x000001b5, 0x000001b5, 0x000001ce, 0x000001ce},
+        {0x0000ae20, 0x000001a6, 0x000001a6, 0x000001aa, 0x000001aa},
         {0x0000b284, 0x00000000, 0x00000000, 0x00000550, 0x00000550},
 };
 
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 11eab9f01fd8..303ce27964c1 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1534,7 +1534,7 @@ EXPORT_SYMBOL(ath9k_hw_check_nav);
 bool ath9k_hw_check_alive(struct ath_hw *ah)
 {
         int count = 50;
-        u32 reg;
+        u32 reg, last_val;
 
         if (AR_SREV_9300(ah))
                 return !ath9k_hw_detect_mac_hang(ah);
@@ -1542,9 +1542,13 @@ bool ath9k_hw_check_alive(struct ath_hw *ah)
         if (AR_SREV_9285_12_OR_LATER(ah))
                 return true;
 
+        last_val = REG_READ(ah, AR_OBS_BUS_1);
         do {
                 reg = REG_READ(ah, AR_OBS_BUS_1);
+                if (reg != last_val)
+                        return true;
 
+                last_val = reg;
                 if ((reg & 0x7E7FFFEF) == 0x00702400)
                         continue;
 
@@ -1556,6 +1560,8 @@ bool ath9k_hw_check_alive(struct ath_hw *ah)
                 default:
                         return true;
                 }
+
+                udelay(1);
         } while (count-- > 0);
 
         return false;
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index a0ebdd000fc2..82e340d3ec60 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -732,11 +732,18 @@ static struct ath_rxbuf *ath_get_next_rx_buf(struct ath_softc *sc,
                         return NULL;
 
                 /*
-                 * mark descriptor as zero-length and set the 'more'
-                 * flag to ensure that both buffers get discarded
+                 * Re-check previous descriptor, in case it has been filled
+                 * in the mean time.
                  */
-                rs->rs_datalen = 0;
-                rs->rs_more = true;
+                ret = ath9k_hw_rxprocdesc(ah, ds, rs);
+                if (ret == -EINPROGRESS) {
+                        /*
+                         * mark descriptor as zero-length and set the 'more'
+                         * flag to ensure that both buffers get discarded
+                         */
+                        rs->rs_datalen = 0;
+                        rs->rs_more = true;
+                }
         }
 
         list_del(&bf->list);
@@ -985,32 +992,32 @@ static int ath9k_rx_skb_preprocess(struct ath_softc *sc,
         struct ath_common *common = ath9k_hw_common(ah);
         struct ieee80211_hdr *hdr;
         bool discard_current = sc->rx.discard_next;
-        int ret = 0;
 
         /*
          * Discard corrupt descriptors which are marked in
          * ath_get_next_rx_buf().
          */
-        sc->rx.discard_next = rx_stats->rs_more;
         if (discard_current)
-                return -EINVAL;
+                goto corrupt;
+
+        sc->rx.discard_next = false;
 
         /*
          * Discard zero-length packets.
          */
         if (!rx_stats->rs_datalen) {
                 RX_STAT_INC(rx_len_err);
-                return -EINVAL;
+                goto corrupt;
         }
 
-        /*
-         * rs_status follows rs_datalen so if rs_datalen is too large
-         * we can take a hint that hardware corrupted it, so ignore
-         * those frames.
-         */
+        /*
+         * rs_status follows rs_datalen so if rs_datalen is too large
+         * we can take a hint that hardware corrupted it, so ignore
+         * those frames.
+         */
         if (rx_stats->rs_datalen > (common->rx_bufsize - ah->caps.rx_status_len)) {
                 RX_STAT_INC(rx_len_err);
-                return -EINVAL;
+                goto corrupt;
         }
 
         /* Only use status info from the last fragment */
@@ -1024,10 +1031,8 @@ static int ath9k_rx_skb_preprocess(struct ath_softc *sc,
          * This is different from the other corrupt descriptor
          * condition handled above.
          */
-        if (rx_stats->rs_status & ATH9K_RXERR_CORRUPT_DESC) {
-                ret = -EINVAL;
-                goto exit;
-        }
+        if (rx_stats->rs_status & ATH9K_RXERR_CORRUPT_DESC)
+                goto corrupt;
 
         hdr = (struct ieee80211_hdr *) (skb->data + ah->caps.rx_status_len);
 
@@ -1043,18 +1048,15 @@ static int ath9k_rx_skb_preprocess(struct ath_softc *sc,
                 if (ath_process_fft(sc, hdr, rx_stats, rx_status->mactime))
                         RX_STAT_INC(rx_spectral);
 
-                ret = -EINVAL;
-                goto exit;
+                return -EINVAL;
         }
 
         /*
          * everything but the rate is checked here, the rate check is done
          * separately to avoid doing two lookups for a rate for each frame.
          */
-        if (!ath9k_rx_accept(common, hdr, rx_status, rx_stats, decrypt_error)) {
-                ret = -EINVAL;
-                goto exit;
-        }
+        if (!ath9k_rx_accept(common, hdr, rx_status, rx_stats, decrypt_error))
+                return -EINVAL;
 
         if (ath_is_mybeacon(common, hdr)) {
                 RX_STAT_INC(rx_beacons);
@@ -1064,15 +1066,11 @@ static int ath9k_rx_skb_preprocess(struct ath_softc *sc,
         /*
          * This shouldn't happen, but have a safety check anyway.
          */
-        if (WARN_ON(!ah->curchan)) {
-                ret = -EINVAL;
-                goto exit;
-        }
+        if (WARN_ON(!ah->curchan))
+                return -EINVAL;
 
-        if (ath9k_process_rate(common, hw, rx_stats, rx_status)) {
-                ret =-EINVAL;
-                goto exit;
-        }
+        if (ath9k_process_rate(common, hw, rx_stats, rx_status))
+                return -EINVAL;
 
         ath9k_process_rssi(common, hw, rx_stats, rx_status);
 
@@ -1087,9 +1085,11 @@ static int ath9k_rx_skb_preprocess(struct ath_softc *sc,
                 sc->rx.num_pkts++;
 #endif
 
-exit:
-        sc->rx.discard_next = false;
-        return ret;
+        return 0;
+
+corrupt:
+        sc->rx.discard_next = rx_stats->rs_more;
+        return -EINVAL;
 }
 
 static void ath9k_rx_skb_postprocess(struct ath_common *common,
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 0a75e2f68c9d..f042a18c8495 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1444,14 +1444,16 @@ void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
         for (tidno = 0, tid = &an->tid[tidno];
              tidno < IEEE80211_NUM_TIDS; tidno++, tid++) {
 
-                if (!tid->sched)
-                        continue;
-
                 ac = tid->ac;
                 txq = ac->txq;
 
                 ath_txq_lock(sc, txq);
 
+                if (!tid->sched) {
+                        ath_txq_unlock(sc, txq);
+                        continue;
+                }
+
                 buffered = ath_tid_has_buffered(tid);
 
                 tid->sched = false;
@@ -2184,14 +2186,15 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
                 txq->stopped = true;
         }
 
+        if (txctl->an)
+                tid = ath_get_skb_tid(sc, txctl->an, skb);
+
         if (info->flags & IEEE80211_TX_CTL_PS_RESPONSE) {
                 ath_txq_unlock(sc, txq);
                 txq = sc->tx.uapsdq;
                 ath_txq_lock(sc, txq);
         } else if (txctl->an &&
                    ieee80211_is_data_present(hdr->frame_control)) {
-                tid = ath_get_skb_tid(sc, txctl->an, skb);
-
                 WARN_ON(tid->ac->txq != txctl->txq);
 
                 if (info->flags & IEEE80211_TX_CTL_CLEAR_PS_FILT)