/* Write ADDAC shifts */
        REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_EXTERNAL_RADIO);
-       ah->eep_ops->set_addac(ah, chan);
+       if (ah->eep_ops->set_addac)
+               ah->eep_ops->set_addac(ah, chan);
 
        if (AR_SREV_5416_22_OR_LATER(ah)) {
                REG_WRITE_ARRAY(&ah->iniAddac, 1, regWrites);
 
        REGWRITE_BUFFER_FLUSH(ah);
 }
 
-static void ath9k_hw_4k_set_addac(struct ath_hw *ah,
-                                 struct ath9k_channel *chan)
-{
-       struct modal_eep_4k_header *pModal;
-       struct ar5416_eeprom_4k *eep = &ah->eeprom.map4k;
-       u8 biaslevel;
-
-       if (ah->hw_version.macVersion != AR_SREV_VERSION_9160)
-               return;
-
-       if (ah->eep_ops->get_eeprom_rev(ah) < AR5416_EEP_MINOR_VER_7)
-               return;
-
-       pModal = &eep->modalHeader;
-
-       if (pModal->xpaBiasLvl != 0xff) {
-               biaslevel = pModal->xpaBiasLvl;
-               INI_RA(&ah->iniAddac, 7, 1) =
-                 (INI_RA(&ah->iniAddac, 7, 1) & (~0x18)) | biaslevel << 3;
-       }
-}
-
 static void ath9k_hw_4k_set_gain(struct ath_hw *ah,
                                 struct modal_eep_4k_header *pModal,
                                 struct ar5416_eeprom_4k *eep,
        .get_eeprom_ver         = ath9k_hw_4k_get_eeprom_ver,
        .get_eeprom_rev         = ath9k_hw_4k_get_eeprom_rev,
        .set_board_values       = ath9k_hw_4k_set_board_values,
-       .set_addac              = ath9k_hw_4k_set_addac,
        .set_txpower            = ath9k_hw_4k_set_txpower,
        .get_spur_channel       = ath9k_hw_4k_get_spur_channel
 };
 
        REGWRITE_BUFFER_FLUSH(ah);
 }
 
-static void ath9k_hw_ar9287_set_addac(struct ath_hw *ah,
-                                     struct ath9k_channel *chan)
-{
-}
-
 static void ath9k_hw_ar9287_set_board_values(struct ath_hw *ah,
                                             struct ath9k_channel *chan)
 {
        .get_eeprom_ver         = ath9k_hw_ar9287_get_eeprom_ver,
        .get_eeprom_rev         = ath9k_hw_ar9287_get_eeprom_rev,
        .set_board_values       = ath9k_hw_ar9287_set_board_values,
-       .set_addac              = ath9k_hw_ar9287_set_addac,
        .set_txpower            = ath9k_hw_ar9287_set_txpower,
        .get_spur_channel       = ath9k_hw_ar9287_get_spur_channel
 };