autobuild_mac80211_release/package/kernel/mt76/patches/1045-wifi-mt76-mt7915-add-mt7981-efuse-variants-support.patch

diff --git a/eeprom.c b/eeprom.c
index 82c5af5..31ee191 100644
--- a/eeprom.c
+++ b/eeprom.c
@@ -108,7 +108,8 @@ out_put_node:
 #endif
 }
 
-static int mt76_get_of_epprom_from_nvmem(struct mt76_dev *dev, void *eep, int len)
+int mt76_get_of_eeprom_from_nvmem(struct mt76_dev *dev, const char *name,
+				  void *buf, int len)
 {
 	struct device_node *np = dev->dev->of_node;
 	struct nvmem_cell *cell;
@@ -116,7 +117,7 @@ static int mt76_get_of_epprom_from_nvmem(struct mt76_dev *dev, void *eep, int le
 	size_t retlen;
 	int ret = 0;
 
-	cell = of_nvmem_cell_get(np, "eeprom");
+	cell = of_nvmem_cell_get(np, name);
 	if (IS_ERR(cell))
 		return PTR_ERR(cell);
 
@@ -131,13 +132,14 @@ static int mt76_get_of_epprom_from_nvmem(struct mt76_dev *dev, void *eep, int le
 		goto exit;
 	}
 
-	memcpy(eep, data, len);
+	memcpy(buf, data, len);
 
 exit:
 	kfree(data);
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(mt76_get_of_eeprom_from_nvmem);
 
 int mt76_get_of_eeprom(struct mt76_dev *dev, void *eep, int offset, int len)
 {
@@ -155,7 +157,7 @@ int mt76_get_of_eeprom(struct mt76_dev *dev, void *eep, int offset, int len)
 	if (!ret)
 		return 0;
 
-	return mt76_get_of_epprom_from_nvmem(dev, eep, len);
+	return mt76_get_of_eeprom_from_nvmem(dev, "eeprom", eep, len);
 }
 EXPORT_SYMBOL_GPL(mt76_get_of_eeprom);
 
diff --git a/mt76.h b/mt76.h
index 5eb571e..ff89e62 100644
--- a/mt76.h
+++ b/mt76.h
@@ -1195,6 +1195,8 @@ void mt76_seq_puts_array(struct seq_file *file, const char *str,
 
 int mt76_eeprom_init(struct mt76_dev *dev, int len);
 void mt76_eeprom_override(struct mt76_phy *phy);
+int mt76_get_of_eeprom_from_nvmem(struct mt76_dev *dev, const char *name,
+				  void *buf, int len);
 int mt76_get_of_eeprom(struct mt76_dev *dev, void *data, int offset, int len);
 bool mt76_check_bin_file_mode(struct mt76_dev *dev);
 
diff --git a/mt7915/eeprom.c b/mt7915/eeprom.c
index c8ea1d9..0ea0f9c 100644
--- a/mt7915/eeprom.c
+++ b/mt7915/eeprom.c
@@ -174,6 +174,21 @@ static int mt7915_eeprom_load(struct mt7915_dev *dev)
 	return mt7915_check_eeprom(dev);
 }
 
+static int mt7915_eeprom_parse_efuse_hw_cap(struct mt7915_dev *dev)
+{
+#define WTBL_SIZE_GROUP		GENMASK(1, 0)
+	u32 buf;
+	int ret;
+
+	ret = mt76_get_of_eeprom_from_nvmem(&dev->mt76, "variant", &buf, 4);
+	if (ret)
+		return ret;
+
+	dev->limited_wtbl_size = buf & WTBL_SIZE_GROUP;
+
+	return 0;
+}
+
 static void mt7915_eeprom_parse_band_config(struct mt7915_phy *phy)
 {
 	struct mt7915_dev *dev = phy->dev;
@@ -224,6 +239,13 @@ void mt7915_eeprom_parse_hw_cap(struct mt7915_dev *dev,
 	u8 path, nss, nss_max = 4, *eeprom = dev->mt76.eeprom.data;
 	struct mt76_phy *mphy = phy->mt76;
 	u8 band = phy->mt76->band_idx;
+	int ret;
+
+	if (is_mt7981(&dev->mt76)) {
+		ret = mt7915_eeprom_parse_efuse_hw_cap(dev);
+		if (ret)
+			dev->limited_wtbl_size = true;
+	}
 
 	mt7915_eeprom_parse_band_config(phy);
 
diff --git a/mt7915/mt7915.h b/mt7915/mt7915.h
index 1510f10..1affbcf 100644
--- a/mt7915/mt7915.h
+++ b/mt7915/mt7915.h
@@ -417,6 +417,7 @@ struct mt7915_dev {
 
 	u32 hw_pattern;
 
+	bool limited_wtbl_size;
 	bool dbdc_support;
 	bool flash_mode;
 	bool bin_file_mode;
@@ -699,7 +700,11 @@ void mt7915_tm_rf_test_event(struct mt7915_dev *dev, struct sk_buff *skb);
 
 static inline u16 mt7915_wtbl_size(struct mt7915_dev *dev)
 {
-	return is_mt7915(&dev->mt76) ? MT7915_WTBL_SIZE : MT7916_WTBL_SIZE;
+	if (is_mt7915(&dev->mt76) ||
+	    (is_mt7981(&dev->mt76) && dev->limited_wtbl_size))
+		return MT7915_WTBL_SIZE;
+
+	return MT7916_WTBL_SIZE;
 }
 
 static inline u16 mt7915_eeprom_size(struct mt7915_dev *dev)