ath9k: Fix issues in the main btcoex timer

* ath9k_mci_update_rssi() is required only for
  cards that use MCI scheme. Make sure that it
  is not called for 3-wire cards.

* Call ath9k_ps_wakeup() early since register
  accesses are made in ath9k_mci_update_rssi().

* Fix usage of btcoex_lock to handle no_stomp_timer.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --git a/drivers/net/wireless/ath/ath9k/gpio.c b/drivers/net/wireless/ath/ath9k/gpio.c
index 6e22d80..86d46c1 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/gpio.c
+++ b/drivers/net/wireless/ath/ath9k/gpio.c
@@ -202,17 +202,16 @@ static void ath_btcoex_period_timer(unsigned long data)
        }
        spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
 
-       ath9k_mci_update_rssi(sc);
-
        ath9k_ps_wakeup(sc);
+       spin_lock_bh(&btcoex->btcoex_lock);
 
-       if (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI))
-               ath_detect_bt_priority(sc);
-
-       if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI)
+       if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI) {
+               ath9k_mci_update_rssi(sc);
                ath_mci_ftp_adjust(sc);
+       }
 
-       spin_lock_bh(&btcoex->btcoex_lock);
+       if (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI))
+               ath_detect_bt_priority(sc);
 
        stomp_type = btcoex->bt_stomp_type;
        timer_period = btcoex->btcoex_no_stomp;
@@ -252,9 +251,6 @@ static void ath_btcoex_no_stomp_timer(unsigned long arg)
        struct ath_softc *sc = (struct ath_softc *)arg;
        struct ath_hw *ah = sc->sc_ah;
        struct ath_btcoex *btcoex = &sc->btcoex;
-       struct ath_common *common = ath9k_hw_common(ah);
-
-       ath_dbg(common, BTCOEX, "no stomp timer running\n");
 
        ath9k_ps_wakeup(sc);
        spin_lock_bh(&btcoex->btcoex_lock);