diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.c b/drivers/net/wireless/ath/ath9k/ar9003_mci.c
index 1a4852815458aa6654b36c45e2524b5a891f3253..aca9015079d62b6d54589d5fc7a5729c12186376 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mci.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.c
@@ -973,8 +973,12 @@ int ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g,
 		  (SM(0xe801, AR_MCI_MSG_ATTRIBUTES_TABLE_INVALID_HDR) |
 		   SM(0x0000, AR_MCI_MSG_ATTRIBUTES_TABLE_CHECKSUM)));
 
-	REG_CLR_BIT(ah, AR_MCI_TX_CTRL,
-		    AR_MCI_TX_CTRL_DISABLE_LNA_UPDATE);
+	if (MCI_ANT_ARCH_PA_LNA_SHARED(mci))
+		REG_CLR_BIT(ah, AR_MCI_TX_CTRL,
+			    AR_MCI_TX_CTRL_DISABLE_LNA_UPDATE);
+	else
+		REG_SET_BIT(ah, AR_MCI_TX_CTRL,
+			    AR_MCI_TX_CTRL_DISABLE_LNA_UPDATE);
 
 	ar9003_mci_observation_set_up(ah);
 
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.h b/drivers/net/wireless/ath/ath9k/ar9003_mci.h
index 6f305abd0b9fd2236981fa3a1aaf35aaf52fb027..174ebea5db6f09bae7837e04372a1fea2fbde140 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mci.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.h
@@ -118,6 +118,10 @@ enum mci_gpm_coex_bt_update_flags_op {
 #define ATH_MCI_ANT_ARCH_2_ANT_PA_LNA_SHARED     0x03
 #define ATH_MCI_ANT_ARCH_3_ANT                   0x04
 
+#define MCI_ANT_ARCH_PA_LNA_SHARED(mci)					\
+	((MS(mci->config, ATH_MCI_CONFIG_ANT_ARCH) == ATH_MCI_ANT_ARCH_1_ANT_PA_LNA_SHARED) || \
+	 (MS(mci->config, ATH_MCI_CONFIG_ANT_ARCH) == ATH_MCI_ANT_ARCH_2_ANT_PA_LNA_SHARED))
+
 enum mci_message_header {		/* length of payload */
 	MCI_LNA_CTRL     = 0x10,        /* len = 0 */
 	MCI_CONT_NACK    = 0x20,        /* len = 0 */