diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h
index bf7aff426896..ecccb51184be 100644
--- a/drivers/net/wireless/realtek/rtw89/core.h
+++ b/drivers/net/wireless/realtek/rtw89/core.h
@@ -4297,6 +4297,7 @@ struct rtw89_chip_info {
 	const struct rtw89_rfe_parms *dflt_parms;
 	const struct rtw89_chanctx_listener *chanctx_listener;
 
+	u8 txpwr_factor_bb;
 	u8 txpwr_factor_rf;
 	u8 txpwr_factor_mac;
 
diff --git a/drivers/net/wireless/realtek/rtw89/phy.c b/drivers/net/wireless/realtek/rtw89/phy.c
index e9a635c43a81..be2f5338c3a0 100644
--- a/drivers/net/wireless/realtek/rtw89/phy.c
+++ b/drivers/net/wireless/realtek/rtw89/phy.c
@@ -2040,6 +2040,23 @@ static s8 rtw89_phy_ant_gain_offset(struct rtw89_dev *rtwdev, u8 band, u32 cente
 	return max(offset_patha, offset_pathb);
 }
 
+s16 rtw89_phy_ant_gain_pwr_offset(struct rtw89_dev *rtwdev,
+				  const struct rtw89_chan *chan)
+{
+	struct rtw89_ant_gain_info *ant_gain = &rtwdev->ant_gain;
+	u8 regd = rtw89_regd_get(rtwdev, chan->band_type);
+	s8 offset_patha, offset_pathb;
+
+	if (!(ant_gain->regd_enabled & BIT(regd)))
+		return 0;
+
+	offset_patha = rtw89_phy_ant_gain_query(rtwdev, RF_PATH_A, chan->freq);
+	offset_pathb = rtw89_phy_ant_gain_query(rtwdev, RF_PATH_B, chan->freq);
+
+	return rtw89_phy_txpwr_rf_to_bb(rtwdev, offset_patha - offset_pathb);
+}
+EXPORT_SYMBOL(rtw89_phy_ant_gain_pwr_offset);
+
 void rtw89_print_ant_gain(struct seq_file *m, struct rtw89_dev *rtwdev,
 			  const struct rtw89_chan *chan)
 {
@@ -2123,20 +2140,6 @@ void rtw89_phy_load_txpwr_byrate(struct rtw89_dev *rtwdev,
 }
 EXPORT_SYMBOL(rtw89_phy_load_txpwr_byrate);
 
-static s8 rtw89_phy_txpwr_rf_to_mac(struct rtw89_dev *rtwdev, s8 txpwr_rf)
-{
-	const struct rtw89_chip_info *chip = rtwdev->chip;
-
-	return txpwr_rf >> (chip->txpwr_factor_rf - chip->txpwr_factor_mac);
-}
-
-static s8 rtw89_phy_txpwr_dbm_to_mac(struct rtw89_dev *rtwdev, s8 dbm)
-{
-	const struct rtw89_chip_info *chip = rtwdev->chip;
-
-	return clamp_t(s16, dbm << chip->txpwr_factor_mac, -64, 63);
-}
-
 static s8 rtw89_phy_txpwr_dbm_without_tolerance(s8 dbm)
 {
 	const u8 tssi_deviation_point = 0;
diff --git a/drivers/net/wireless/realtek/rtw89/phy.h b/drivers/net/wireless/realtek/rtw89/phy.h
index 2720cabfafe4..f4ef7f5fb081 100644
--- a/drivers/net/wireless/realtek/rtw89/phy.h
+++ b/drivers/net/wireless/realtek/rtw89/phy.h
@@ -827,6 +827,8 @@ s8 *rtw89_phy_raw_byr_seek(struct rtw89_dev *rtwdev,
 s8 rtw89_phy_read_txpwr_byrate(struct rtw89_dev *rtwdev, u8 band, u8 bw,
 			       const struct rtw89_rate_desc *rate_desc);
 void rtw89_phy_ant_gain_init(struct rtw89_dev *rtwdev);
+s16 rtw89_phy_ant_gain_pwr_offset(struct rtw89_dev *rtwdev,
+				  const struct rtw89_chan *chan);
 void rtw89_print_ant_gain(struct seq_file *m, struct rtw89_dev *rtwdev,
 			  const struct rtw89_chan *chan);
 void rtw89_phy_load_txpwr_byrate(struct rtw89_dev *rtwdev,
@@ -899,6 +901,27 @@ void rtw89_phy_set_txpwr_limit_ru(struct rtw89_dev *rtwdev,
 	phy->set_txpwr_limit_ru(rtwdev, chan, phy_idx);
 }
 
+static inline s8 rtw89_phy_txpwr_rf_to_bb(struct rtw89_dev *rtwdev, s8 txpwr_rf)
+{
+	const struct rtw89_chip_info *chip = rtwdev->chip;
+
+	return txpwr_rf << (chip->txpwr_factor_bb - chip->txpwr_factor_rf);
+}
+
+static inline s8 rtw89_phy_txpwr_rf_to_mac(struct rtw89_dev *rtwdev, s8 txpwr_rf)
+{
+	const struct rtw89_chip_info *chip = rtwdev->chip;
+
+	return txpwr_rf >> (chip->txpwr_factor_rf - chip->txpwr_factor_mac);
+}
+
+static inline s8 rtw89_phy_txpwr_dbm_to_mac(struct rtw89_dev *rtwdev, s8 dbm)
+{
+	const struct rtw89_chip_info *chip = rtwdev->chip;
+
+	return clamp_t(s16, dbm << chip->txpwr_factor_mac, -64, 63);
+}
+
 void rtw89_phy_ra_assoc(struct rtw89_dev *rtwdev, struct rtw89_sta_link *rtwsta_link);
 void rtw89_phy_ra_update(struct rtw89_dev *rtwdev);
 void rtw89_phy_ra_update_sta(struct rtw89_dev *rtwdev, struct ieee80211_sta *sta,
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8851b.c b/drivers/net/wireless/realtek/rtw89/rtw8851b.c
index 29c697a251d3..1ed4e64cbd2c 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8851b.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8851b.c
@@ -2464,6 +2464,7 @@ const struct rtw89_chip_info rtw8851b_chip_info = {
 	.nctl_post_table	= &rtw8851b_nctl_post_defs_tbl,
 	.dflt_parms		= &rtw89_8851b_dflt_parms,
 	.rfe_parms_conf		= rtw89_8851b_rfe_parms_conf,
+	.txpwr_factor_bb	= 3,
 	.txpwr_factor_rf	= 2,
 	.txpwr_factor_mac	= 1,
 	.dig_table		= NULL,
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852a.c b/drivers/net/wireless/realtek/rtw89/rtw8852a.c
index fd59ee9f3626..a7105a288bc4 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852a.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852a.c
@@ -2181,6 +2181,7 @@ const struct rtw89_chip_info rtw8852a_chip_info = {
 	.nctl_post_table	= NULL,
 	.dflt_parms		= &rtw89_8852a_dflt_parms,
 	.rfe_parms_conf		= NULL,
+	.txpwr_factor_bb	= 3,
 	.txpwr_factor_rf	= 2,
 	.txpwr_factor_mac	= 1,
 	.dig_table		= &rtw89_8852a_phy_dig_table,
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852b.c b/drivers/net/wireless/realtek/rtw89/rtw8852b.c
index 76667d4f3631..ebc853a905dd 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852b.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852b.c
@@ -819,6 +819,7 @@ const struct rtw89_chip_info rtw8852b_chip_info = {
 	.nctl_post_table	= NULL,
 	.dflt_parms		= &rtw89_8852b_dflt_parms,
 	.rfe_parms_conf		= NULL,
+	.txpwr_factor_bb	= 3,
 	.txpwr_factor_rf	= 2,
 	.txpwr_factor_mac	= 1,
 	.dig_table		= NULL,
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852b_common.c b/drivers/net/wireless/realtek/rtw89/rtw8852b_common.c
index f4aa4437fb75..012739d97f71 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852b_common.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852b_common.c
@@ -1206,24 +1206,25 @@ void __rtw8852bx_set_channel_bb(struct rtw89_dev *rtwdev, const struct rtw89_cha
 }
 
 static u32 rtw8852bx_bb_cal_txpwr_ref(struct rtw89_dev *rtwdev,
-				      enum rtw89_phy_idx phy_idx, s16 ref)
+				      enum rtw89_phy_idx phy_idx,
+				      s16 ref, u16 pwr_ofst_decrease)
 {
 	const u16 tssi_16dbm_cw = 0x12c;
 	const u8 base_cw_0db = 0x27;
-	const s8 ofst_int = 0;
 	s16 pwr_s10_3;
 	s16 rf_pwr_cw;
 	u16 bb_pwr_cw;
 	u32 pwr_cw;
 	u32 tssi_ofst_cw;
 
-	pwr_s10_3 = (ref << 1) + (s16)(ofst_int) + (s16)(base_cw_0db << 3);
+	pwr_s10_3 = (ref << 1) + (s16)(base_cw_0db << 3) - pwr_ofst_decrease;
 	bb_pwr_cw = u16_get_bits(pwr_s10_3, GENMASK(2, 0));
 	rf_pwr_cw = u16_get_bits(pwr_s10_3, GENMASK(8, 3));
 	rf_pwr_cw = clamp_t(s16, rf_pwr_cw, 15, 63);
 	pwr_cw = (rf_pwr_cw << 3) | bb_pwr_cw;
 
-	tssi_ofst_cw = (u32)((s16)tssi_16dbm_cw + (ref << 1) - (16 << 3));
+	tssi_ofst_cw = (u32)((s16)tssi_16dbm_cw + (ref << 1) - (16 << 3)) -
+		       pwr_ofst_decrease;
 	rtw89_debug(rtwdev, RTW89_DBG_TXPWR,
 		    "[TXPWR] tssi_ofst_cw=%d rf_cw=0x%x bb_cw=0x%x\n",
 		    tssi_ofst_cw, rf_pwr_cw, bb_pwr_cw);
@@ -1234,10 +1235,11 @@ static u32 rtw8852bx_bb_cal_txpwr_ref(struct rtw89_dev *rtwdev,
 }
 
 static void rtw8852bx_set_txpwr_ref(struct rtw89_dev *rtwdev,
-				    enum rtw89_phy_idx phy_idx)
+				    enum rtw89_phy_idx phy_idx, s16 pwr_ofst)
 {
 	static const u32 addr[RF_PATH_NUM_8852BX] = {0x5800, 0x7800};
 	const u32 mask = B_DPD_TSSI_CW | B_DPD_PWR_CW | B_DPD_REF;
+	u16 ofst_dec[RF_PATH_NUM_8852BX];
 	const u8 ofst_ofdm = 0x4;
 	const u8 ofst_cck = 0x8;
 	const s16 ref_ofdm = 0;
@@ -1250,19 +1252,20 @@ static void rtw8852bx_set_txpwr_ref(struct rtw89_dev *rtwdev,
 	rtw89_mac_txpwr_write32_mask(rtwdev, phy_idx, R_AX_PWR_RATE_CTRL,
 				     B_AX_PWR_REF, 0x0);
 
-	rtw89_debug(rtwdev, RTW89_DBG_TXPWR, "[TXPWR] set bb ofdm txpwr ref\n");
-	val = rtw8852bx_bb_cal_txpwr_ref(rtwdev, phy_idx, ref_ofdm);
+	ofst_dec[RF_PATH_A] = pwr_ofst > 0 ? 0 : abs(pwr_ofst);
+	ofst_dec[RF_PATH_B] = pwr_ofst > 0 ? pwr_ofst : 0;
 
-	for (i = 0; i < RF_PATH_NUM_8852BX; i++)
-		rtw89_phy_write32_idx(rtwdev, addr[i] + ofst_ofdm, mask, val,
-				      phy_idx);
+	rtw89_debug(rtwdev, RTW89_DBG_TXPWR, "[TXPWR] set bb ofdm txpwr ref\n");
+	for (i = 0; i < RF_PATH_NUM_8852BX; i++) {
+		val = rtw8852bx_bb_cal_txpwr_ref(rtwdev, phy_idx, ref_ofdm, ofst_dec[i]);
+		rtw89_phy_write32_idx(rtwdev, addr[i] + ofst_ofdm, mask, val, phy_idx);
+	}
 
 	rtw89_debug(rtwdev, RTW89_DBG_TXPWR, "[TXPWR] set bb cck txpwr ref\n");
-	val = rtw8852bx_bb_cal_txpwr_ref(rtwdev, phy_idx, ref_cck);
-
-	for (i = 0; i < RF_PATH_NUM_8852BX; i++)
-		rtw89_phy_write32_idx(rtwdev, addr[i] + ofst_cck, mask, val,
-				      phy_idx);
+	for (i = 0; i < RF_PATH_NUM_8852BX; i++) {
+		val = rtw8852bx_bb_cal_txpwr_ref(rtwdev, phy_idx, ref_cck, ofst_dec[i]);
+		rtw89_phy_write32_idx(rtwdev, addr[i] + ofst_cck, mask, val, phy_idx);
+	}
 }
 
 static void rtw8852bx_bb_set_tx_shape_dfir(struct rtw89_dev *rtwdev,
@@ -1333,6 +1336,16 @@ static void rtw8852bx_set_tx_shape(struct rtw89_dev *rtwdev,
 			       tx_shape_ofdm);
 }
 
+static void rtw8852bx_set_txpwr_diff(struct rtw89_dev *rtwdev,
+				     const struct rtw89_chan *chan,
+				     enum rtw89_phy_idx phy_idx)
+{
+	s16 pwr_ofst;
+
+	pwr_ofst = rtw89_phy_ant_gain_pwr_offset(rtwdev, chan);
+	rtw8852bx_set_txpwr_ref(rtwdev, phy_idx, pwr_ofst);
+}
+
 static void __rtw8852bx_set_txpwr(struct rtw89_dev *rtwdev,
 				  const struct rtw89_chan *chan,
 				  enum rtw89_phy_idx phy_idx)
@@ -1342,12 +1355,13 @@ static void __rtw8852bx_set_txpwr(struct rtw89_dev *rtwdev,
 	rtw8852bx_set_tx_shape(rtwdev, chan, phy_idx);
 	rtw89_phy_set_txpwr_limit(rtwdev, chan, phy_idx);
 	rtw89_phy_set_txpwr_limit_ru(rtwdev, chan, phy_idx);
+	rtw8852bx_set_txpwr_diff(rtwdev, chan, phy_idx);
 }
 
 static void __rtw8852bx_set_txpwr_ctrl(struct rtw89_dev *rtwdev,
 				       enum rtw89_phy_idx phy_idx)
 {
-	rtw8852bx_set_txpwr_ref(rtwdev, phy_idx);
+	rtw8852bx_set_txpwr_ref(rtwdev, phy_idx, 0);
 }
 
 static
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852bt.c b/drivers/net/wireless/realtek/rtw89/rtw8852bt.c
index d8c0fb87b625..cd1385ff8003 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852bt.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852bt.c
@@ -752,6 +752,7 @@ const struct rtw89_chip_info rtw8852bt_chip_info = {
 	.nctl_post_table	= NULL,
 	.dflt_parms		= NULL,
 	.rfe_parms_conf		= NULL,
+	.txpwr_factor_bb	= 3,
 	.txpwr_factor_rf	= 2,
 	.txpwr_factor_mac	= 1,
 	.dig_table		= NULL,
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852c.c b/drivers/net/wireless/realtek/rtw89/rtw8852c.c
index b63971010751..c7d39499ca75 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852c.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852c.c
@@ -1882,9 +1882,9 @@ static void rtw8852c_rfk_track(struct rtw89_dev *rtwdev)
 }
 
 static u32 rtw8852c_bb_cal_txpwr_ref(struct rtw89_dev *rtwdev,
-				     enum rtw89_phy_idx phy_idx, s16 ref)
+				     enum rtw89_phy_idx phy_idx,
+				     s16 ref, u16 pwr_ofst_decrease)
 {
-	s8 ofst_int = 0;
 	u8 base_cw_0db = 0x27;
 	u16 tssi_16dbm_cw = 0x12c;
 	s16 pwr_s10_3 = 0;
@@ -1893,13 +1893,14 @@ static u32 rtw8852c_bb_cal_txpwr_ref(struct rtw89_dev *rtwdev,
 	u32 pwr_cw = 0;
 	u32 tssi_ofst_cw = 0;
 
-	pwr_s10_3 = (ref << 1) + (s16)(ofst_int) + (s16)(base_cw_0db << 3);
+	pwr_s10_3 = (ref << 1) + (s16)(base_cw_0db << 3) - pwr_ofst_decrease;
 	bb_pwr_cw = FIELD_GET(GENMASK(2, 0), pwr_s10_3);
 	rf_pwr_cw = FIELD_GET(GENMASK(8, 3), pwr_s10_3);
 	rf_pwr_cw = clamp_t(s16, rf_pwr_cw, 15, 63);
 	pwr_cw = (rf_pwr_cw << 3) | bb_pwr_cw;
 
-	tssi_ofst_cw = (u32)((s16)tssi_16dbm_cw + (ref << 1) - (16 << 3));
+	tssi_ofst_cw = (u32)((s16)tssi_16dbm_cw + (ref << 1) - (16 << 3)) -
+		       pwr_ofst_decrease;
 	rtw89_debug(rtwdev, RTW89_DBG_TXPWR,
 		    "[TXPWR] tssi_ofst_cw=%d rf_cw=0x%x bb_cw=0x%x\n",
 		    tssi_ofst_cw, rf_pwr_cw, bb_pwr_cw);
@@ -1943,9 +1944,10 @@ void rtw8852c_set_txpwr_ul_tb_offset(struct rtw89_dev *rtwdev,
 }
 
 static void rtw8852c_set_txpwr_ref(struct rtw89_dev *rtwdev,
-				   enum rtw89_phy_idx phy_idx)
+				   enum rtw89_phy_idx phy_idx, s16 pwr_ofst)
 {
 	static const u32 addr[RF_PATH_NUM_8852C] = {0x5800, 0x7800};
+	u16 ofst_dec[RF_PATH_NUM_8852C];
 	const u32 mask = 0x7FFFFFF;
 	const u8 ofst_ofdm = 0x4;
 	const u8 ofst_cck = 0x8;
@@ -1959,19 +1961,20 @@ static void rtw8852c_set_txpwr_ref(struct rtw89_dev *rtwdev,
 	rtw89_mac_txpwr_write32_mask(rtwdev, phy_idx, R_AX_PWR_RATE_CTRL,
 				     GENMASK(27, 10), 0x0);
 
-	rtw89_debug(rtwdev, RTW89_DBG_TXPWR, "[TXPWR] set bb ofdm txpwr ref\n");
-	val = rtw8852c_bb_cal_txpwr_ref(rtwdev, phy_idx, ref_ofdm);
+	ofst_dec[RF_PATH_A] = pwr_ofst > 0 ? 0 : abs(pwr_ofst);
+	ofst_dec[RF_PATH_B] = pwr_ofst > 0 ? pwr_ofst : 0;
 
-	for (i = 0; i < RF_PATH_NUM_8852C; i++)
-		rtw89_phy_write32_idx(rtwdev, addr[i] + ofst_ofdm, mask, val,
-				      phy_idx);
+	rtw89_debug(rtwdev, RTW89_DBG_TXPWR, "[TXPWR] set bb ofdm txpwr ref\n");
+	for (i = 0; i < RF_PATH_NUM_8852C; i++) {
+		val = rtw8852c_bb_cal_txpwr_ref(rtwdev, phy_idx, ref_ofdm, ofst_dec[i]);
+		rtw89_phy_write32_idx(rtwdev, addr[i] + ofst_ofdm, mask, val, phy_idx);
+	}
 
 	rtw89_debug(rtwdev, RTW89_DBG_TXPWR, "[TXPWR] set bb cck txpwr ref\n");
-	val = rtw8852c_bb_cal_txpwr_ref(rtwdev, phy_idx, ref_cck);
-
-	for (i = 0; i < RF_PATH_NUM_8852C; i++)
-		rtw89_phy_write32_idx(rtwdev, addr[i] + ofst_cck, mask, val,
-				      phy_idx);
+	for (i = 0; i < RF_PATH_NUM_8852C; i++) {
+		val = rtw8852c_bb_cal_txpwr_ref(rtwdev, phy_idx, ref_cck, ofst_dec[i]);
+		rtw89_phy_write32_idx(rtwdev, addr[i] + ofst_cck, mask, val, phy_idx);
+	}
 }
 
 static void rtw8852c_bb_set_tx_shape_dfir(struct rtw89_dev *rtwdev,
@@ -2052,6 +2055,16 @@ static void rtw8852c_set_tx_shape(struct rtw89_dev *rtwdev,
 			      B_P1_DAC_COMP_POST_DPD_EN);
 }
 
+static void rtw8852c_set_txpwr_diff(struct rtw89_dev *rtwdev,
+				    const struct rtw89_chan *chan,
+				    enum rtw89_phy_idx phy_idx)
+{
+	s16 pwr_ofst;
+
+	pwr_ofst = rtw89_phy_ant_gain_pwr_offset(rtwdev, chan);
+	rtw8852c_set_txpwr_ref(rtwdev, phy_idx, pwr_ofst);
+}
+
 static void rtw8852c_set_txpwr(struct rtw89_dev *rtwdev,
 			       const struct rtw89_chan *chan,
 			       enum rtw89_phy_idx phy_idx)
@@ -2061,12 +2074,13 @@ static void rtw8852c_set_txpwr(struct rtw89_dev *rtwdev,
 	rtw8852c_set_tx_shape(rtwdev, chan, phy_idx);
 	rtw89_phy_set_txpwr_limit(rtwdev, chan, phy_idx);
 	rtw89_phy_set_txpwr_limit_ru(rtwdev, chan, phy_idx);
+	rtw8852c_set_txpwr_diff(rtwdev, chan, phy_idx);
 }
 
 static void rtw8852c_set_txpwr_ctrl(struct rtw89_dev *rtwdev,
 				    enum rtw89_phy_idx phy_idx)
 {
-	rtw8852c_set_txpwr_ref(rtwdev, phy_idx);
+	rtw8852c_set_txpwr_ref(rtwdev, phy_idx, 0);
 }
 
 static void
@@ -2959,6 +2973,7 @@ const struct rtw89_chip_info rtw8852c_chip_info = {
 	.dflt_parms		= &rtw89_8852c_dflt_parms,
 	.rfe_parms_conf		= NULL,
 	.chanctx_listener	= &rtw8852c_chanctx_listener,
+	.txpwr_factor_bb	= 3,
 	.txpwr_factor_rf	= 2,
 	.txpwr_factor_mac	= 1,
 	.dig_table		= NULL,
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8922a.c b/drivers/net/wireless/realtek/rtw89/rtw8922a.c
index b3879b485918..a5333099668a 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8922a.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8922a.c
@@ -2729,6 +2729,7 @@ const struct rtw89_chip_info rtw8922a_chip_info = {
 	.nctl_post_table	= NULL,
 	.dflt_parms		= NULL, /* load parm from fw */
 	.rfe_parms_conf		= NULL, /* load parm from fw */
+	.txpwr_factor_bb	= 3,
 	.txpwr_factor_rf	= 2,
 	.txpwr_factor_mac	= 1,
 	.dig_table		= NULL,