forked from ~ljy/RK356X_SDK_RELEASE
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hc
2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 
 kernel/drivers/net/wireless/mediatek/mt76/mt76x2/eeprom.c
....@@ -256,7 +256,8 @@
256256 	struct ieee80211_channel *chan = dev->mphy.chandef.chan;
257257 	int channel = chan->hw_value;
258258 	s8 lna_5g[3], lna_2g;
259
-	u8 lna;
259
+	bool use_lna;
260
+	u8 lna = 0;
260261 	u16 val;
261262 
262263 	if (chan->band == NL80211_BAND_2GHZ)
....@@ -275,7 +276,15 @@
275276 	dev->cal.rx.mcu_gain |= (lna_5g[1] & 0xff) << 16;
276277 	dev->cal.rx.mcu_gain |= (lna_5g[2] & 0xff) << 24;
277278 
278
-	lna = mt76x02_get_lna_gain(dev, &lna_2g, lna_5g, chan);
279
+	val = mt76x02_eeprom_get(dev, MT_EE_NIC_CONF_1);
280
+	if (chan->band == NL80211_BAND_2GHZ)
281
+		use_lna = !(val & MT_EE_NIC_CONF_1_LNA_EXT_2G);
282
+	else
283
+		use_lna = !(val & MT_EE_NIC_CONF_1_LNA_EXT_5G);
284
+
285
+	if (use_lna)
286
+		lna = mt76x02_get_lna_gain(dev, &lna_2g, lna_5g, chan);
287
+
279288 	dev->cal.rx.lna_gain = mt76x02_sign_extend(lna, 8);
280289 }
281290 EXPORT_SYMBOL_GPL(mt76x2_read_rx_gain);