ath9k: replaces SC_OP_BTCOEX_ENABLED with a bool

Whether or not bluetooth coex has been enabled is a hardware
state and only the hardware helpers will be able to set this.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/ath9k.h

@@ -532,7 +532,6 @@ struct ath_led {
 #define SC_OP_WAIT_FOR_PSPOLL_DATA BIT(17)
 #define SC_OP_WAIT_FOR_TX_ACK   BIT(18)
 #define SC_OP_BEACON_SYNC       BIT(19)
-#define SC_OP_BTCOEX_ENABLED    BIT(20)
 #define SC_OP_BT_PRIORITY_DETECTED BIT(21)
 
 struct ath_bus_ops {

drivers/net/wireless/ath/ath9k/btcoex.c

@@ -164,7 +164,7 @@ void ath9k_hw_btcoex_enable(struct ath_hw *ah)
 		(0x2 << (btcoex_info->btactive_gpio * 2)),
 		(0x3 << (btcoex_info->btactive_gpio * 2)));
 
-	ah->ah_sc->sc_flags |= SC_OP_BTCOEX_ENABLED;
+	ah->btcoex_info.enabled = true;
 }
 
 void ath9k_hw_btcoex_disable(struct ath_hw *ah)
@@ -182,5 +182,5 @@ void ath9k_hw_btcoex_disable(struct ath_hw *ah)
 		REG_WRITE(ah, AR_BT_COEX_MODE2, 0);
 	}
 
-	ah->ah_sc->sc_flags &= ~SC_OP_BTCOEX_ENABLED;
+	ah->btcoex_info.enabled = false;
 }

drivers/net/wireless/ath/ath9k/btcoex.h

@@ -64,6 +64,7 @@ struct ath_btcoex_config {
 
 struct ath_btcoex_info {
 	enum ath_btcoex_scheme btcoex_scheme;
+	bool enabled;
 	u8 wlanactive_gpio;
 	u8 btactive_gpio;
 	u8 btpriority_gpio;

drivers/net/wireless/ath/ath9k/hw.c

@@ -2578,7 +2578,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 #endif
 	}
 
-	if (ah->ah_sc->sc_flags & SC_OP_BTCOEX_ENABLED)
+	if (ah->btcoex_info.enabled)
 		ath9k_hw_btcoex_enable(ah);
 
 	return 0;

drivers/net/wireless/ath/ath9k/main.c

@@ -2199,7 +2199,7 @@ static int ath9k_start(struct ieee80211_hw *hw)
 	ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0);
 
 	if ((ah->btcoex_info.btcoex_scheme != ATH_BTCOEX_CFG_NONE) &&
-	    !(sc->sc_flags & SC_OP_BTCOEX_ENABLED)) {
+	    !ah->btcoex_info.enabled) {
 		ath9k_hw_btcoex_init_weight(ah);
 		ath9k_hw_btcoex_enable(ah);
 
@@ -2358,7 +2358,7 @@ static void ath9k_stop(struct ieee80211_hw *hw)
 		return; /* another wiphy still in use */
 	}
 
-	if (sc->sc_flags & SC_OP_BTCOEX_ENABLED) {
+	if (ah->btcoex_info.enabled) {
 		ath9k_hw_btcoex_disable(ah);
 		if (ah->btcoex_info.btcoex_scheme == ATH_BTCOEX_CFG_3WIRE)
 			ath9k_btcoex_timer_pause(sc);