diff --git a/drivers/net/wireless/ath/ath9k/btcoex.c b/drivers/net/wireless/ath/ath9k/btcoex.c
index ee2a83491235f860b1d0eb5ea9d9dd81cc949e00..5d1095f18d7728227197d2f3cff11d5b0b3cfd90 100644
--- a/drivers/net/wireless/ath/ath9k/btcoex.c
+++ b/drivers/net/wireless/ath/ath9k/btcoex.c
@@ -45,15 +45,15 @@ static const u16 ath_subsysid_tbl[] = {
  * Checks the subsystem id of the device to see if it
  * supports btcoex
  */
-bool ath_btcoex_supported(u16 subsysid)
+bool ath9k_hw_btcoex_supported(struct ath_hw *ah)
 {
 	int i;
 
-	if (!subsysid)
+	if (!ah->hw_version.subsysid)
 		return false;
 
 	for (i = 0; i < ARRAY_SIZE(ath_subsysid_tbl); i++)
-		if (subsysid == ath_subsysid_tbl[i])
+		if (ah->hw_version.subsysid == ath_subsysid_tbl[i])
 			return true;
 
 	return false;
diff --git a/drivers/net/wireless/ath/ath9k/btcoex.h b/drivers/net/wireless/ath/ath9k/btcoex.h
index 0dc51202d45100df60b0b0c28413bb3149eb1d0a..1ba31a73317c9f3d3e3d32b8406a407c14ea0c47 100644
--- a/drivers/net/wireless/ath/ath9k/btcoex.h
+++ b/drivers/net/wireless/ath/ath9k/btcoex.h
@@ -47,7 +47,7 @@ struct ath_btcoex_hw {
 	u32 bt_coex_mode2; 	/* Register setting for AR_BT_COEX_MODE2 */
 };
 
-bool ath_btcoex_supported(u16 subsysid);
+bool ath9k_hw_btcoex_supported(struct ath_hw *ah);
 void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah);
 void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah);
 void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum);
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 93b3258190cbef18c18d64b182b55eab269a9710..de83d3c4b4690f6df83cbdf7d03a7f50d35467a3 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -3728,7 +3728,7 @@ void ath9k_hw_fill_cap_info(struct ath_hw *ah)
 		ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_2GHZ);
 
 	if (AR_SREV_9280_10_OR_LATER(ah) &&
-	    ath_btcoex_supported(ah->hw_version.subsysid)) {
+	    ath9k_hw_btcoex_supported(ah)) {
 		btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO;
 		btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO;