ath9k: Use power save wrappers for TSF get/set

The HW has to be awake when accessing registers.

Signed-off-by: Sujith Manoharan <[email protected]>
Signed-off-by: John W. Linville <[email protected]>

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index ca35aaa7aec65c28f2be00ebf020b60a881dd405..5b4ef81318f560191d41165ae18a191dc83fdf8f 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1987,7 +1987,9 @@ static u64 ath9k_get_tsf(struct ieee80211_hw *hw)
        struct ath_softc *sc = aphy->sc;
 
        mutex_lock(&sc->mutex);
+       ath9k_ps_wakeup(sc);
        tsf = ath9k_hw_gettsf64(sc->sc_ah);
+       ath9k_ps_restore(sc);
        mutex_unlock(&sc->mutex);
 
        return tsf;
@@ -1999,7 +2001,9 @@ static void ath9k_set_tsf(struct ieee80211_hw *hw, u64 tsf)
        struct ath_softc *sc = aphy->sc;
 
        mutex_lock(&sc->mutex);
+       ath9k_ps_wakeup(sc);
        ath9k_hw_settsf64(sc->sc_ah, tsf);
+       ath9k_ps_restore(sc);
        mutex_unlock(&sc->mutex);
 }