diff --git a/mt76x2.h b/mt76x2.h
index 9b68f1795..d209097d0 100644
--- a/mt76x2.h
+++ b/mt76x2.h
@@ -213,5 +213,6 @@ void mt76x2_update_channel(struct mt76_dev *dev);
 s8 mt76x3_tx_get_max_txpwr_adj(struct mt76x2_dev *dev,
 			       const struct ieee80211_tx_rate *rate);
 s8 mt76x2_tx_get_txpwr_adj(struct mt76x2_dev *dev, s8 txpwr, s8 max_txpwr_adj);
+void mt76x2_tx_set_txpwr_auto(struct mt76x2_dev *dev, s8 txpwr);
 
 #endif
diff --git a/mt76x2_main.c b/mt76x2_main.c
index 5ef100f09..9b7bf5a5d 100644
--- a/mt76x2_main.c
+++ b/mt76x2_main.c
@@ -150,8 +150,10 @@ mt76x2_config(struct ieee80211_hw *hw, u32 changed)
 	if (changed & IEEE80211_CONF_CHANGE_POWER) {
 		dev->txpower_conf = hw->conf.power_level * 2;
 
-		if (test_bit(MT76_STATE_RUNNING, &dev->mt76.state))
+		if (test_bit(MT76_STATE_RUNNING, &dev->mt76.state)) {
 			mt76x2_phy_set_txpower(dev);
+			mt76x2_tx_set_txpwr_auto(dev, dev->txpower_conf);
+		}
 	}
 
 	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
diff --git a/mt76x2_regs.h b/mt76x2_regs.h
index b2a856c3f..5a6134b0e 100644
--- a/mt76x2_regs.h
+++ b/mt76x2_regs.h
@@ -441,6 +441,8 @@
 #define MT_TXOP_HLDR_ET			0x1608
 
 #define MT_PROT_AUTO_TX_CFG		0x1648
+#define MT_PROT_AUTO_TX_CFG_PROT_PADJ	GENMASK(11, 8)
+#define MT_PROT_AUTO_TX_CFG_AUTO_PADJ	GENMASK(27, 24)
 
 #define MT_TX_STAT_FIFO			0x1718
 #define MT_TX_STAT_FIFO_VALID		BIT(0)
diff --git a/mt76x2_tx.c b/mt76x2_tx.c
index f832ee078..8f746e34f 100644
--- a/mt76x2_tx.c
+++ b/mt76x2_tx.c
@@ -110,6 +110,18 @@ s8 mt76x2_tx_get_txpwr_adj(struct mt76x2_dev *dev, s8 txpwr, s8 max_txpwr_adj)
 		return (txpwr < -16) ? 8 : (txpwr + 32) / 2;
 }
 
+void mt76x2_tx_set_txpwr_auto(struct mt76x2_dev *dev, s8 txpwr)
+{
+	s8 txpwr_adj;
+
+	txpwr_adj = mt76x2_tx_get_txpwr_adj(dev, txpwr,
+					    dev->rate_power.ofdm[4]);
+	mt76_rmw_field(dev, MT_PROT_AUTO_TX_CFG,
+		       MT_PROT_AUTO_TX_CFG_PROT_PADJ, txpwr_adj);
+	mt76_rmw_field(dev, MT_PROT_AUTO_TX_CFG,
+		       MT_PROT_AUTO_TX_CFG_AUTO_PADJ, txpwr_adj);
+}
+
 int mt76x2_tx_prepare_skb(struct mt76_dev *mdev, void *txwi,
 			  struct sk_buff *skb, struct mt76_queue *q,
 			  struct mt76_wcid *wcid, struct ieee80211_sta *sta,