ath9k: Remove "shared_chain_lnadiv"

This variable is redundant since we can use
common->bt_ant_diversity to determine if diversity
has to be enabled/disabled.
Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/ar9003_eeprom.c

@@ -3561,6 +3561,7 @@ static u16 ar9003_hw_ant_ctrl_chain_get(struct ath_hw *ah, int chain,
 
 static void ar9003_hw_ant_ctrl_apply(struct ath_hw *ah, bool is2ghz)
 {
+	struct ath_common *common = ath9k_hw_common(ah);
 	struct ath9k_hw_capabilities *pCap = &ah->caps;
 	int chain;
 	u32 regval, value, gpio;
@@ -3646,7 +3647,7 @@ static void ar9003_hw_ant_ctrl_apply(struct ath_hw *ah, bool is2ghz)
 		regval |= ((value >> 6) & 0x1) << AR_PHY_ANT_DIV_LNADIV_S;
 
 		if (AR_SREV_9565(ah)) {
-			if (ah->shared_chain_lnadiv) {
+			if (common->bt_ant_diversity) {
 				regval |= (1 << AR_PHY_ANT_SW_RX_PROT_S);
 			} else {
 				regval &= ~(1 << AR_PHY_ANT_DIV_LNADIV_S);

drivers/net/wireless/ath/ath9k/ar9003_phy.c

@@ -1420,7 +1420,6 @@ static void ar9003_hw_set_bt_ant_diversity(struct ath_hw *ah, bool enable)
 	if (!AR_SREV_9565(ah))
 		return;
 
-	ah->shared_chain_lnadiv = enable;
 	ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
 
 	regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);

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

@@ -2056,7 +2056,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 
 	ath9k_hw_apply_gpio_override(ah);
 
-	if (AR_SREV_9565(ah) && ah->shared_chain_lnadiv)
+	if (AR_SREV_9565(ah) && common->bt_ant_diversity)
 		REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV, AR_BTCOEX_WL_LNADIV_FORCE_ON);
 
 	return 0;

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

@@ -767,7 +767,6 @@ struct ath_hw {
 	bool aspm_enabled;
 	bool is_monitoring;
 	bool need_an_top2_fixup;
-	bool shared_chain_lnadiv;
 	u16 tx_trig_level;
 
 	u32 nf_regs[6];