wifi: mt76: make mt76_get_of_eeprom static again

Since mt76_get_of_eeprom is not used by mt7915 anymore, unexport it and
make it static again.

Also drop offset arg as it's only supported for MTD and was always set
to 0, hardcode the MTD functio instead.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/eeprom.c

@@ -138,7 +138,7 @@ static int mt76_get_of_eeprom_from_nvmem(struct mt76_dev *dev, void *eep, int le
 	return ret;
 }
 
-int mt76_get_of_eeprom(struct mt76_dev *dev, void *eep, int offset, int len)
+static int mt76_get_of_eeprom(struct mt76_dev *dev, void *eep, int len)
 {
 	struct device_node *np = dev->dev->of_node;
 	int ret;
@@ -150,13 +150,12 @@ int mt76_get_of_eeprom(struct mt76_dev *dev, void *eep, int offset, int len)
 	if (!ret)
 		return 0;
 
-	ret = mt76_get_of_data_from_mtd(dev, eep, offset, len);
+	ret = mt76_get_of_data_from_mtd(dev, eep, 0, len);
 	if (!ret)
 		return 0;
 
 	return mt76_get_of_eeprom_from_nvmem(dev, eep, len);
 }
-EXPORT_SYMBOL_GPL(mt76_get_of_eeprom);
 
 void
 mt76_eeprom_override(struct mt76_phy *phy)
@@ -413,6 +412,6 @@ mt76_eeprom_init(struct mt76_dev *dev, int len)
 	if (!dev->eeprom.data)
 		return -ENOMEM;
 
-	return !mt76_get_of_eeprom(dev, dev->eeprom.data, 0, len);
+	return !mt76_get_of_eeprom(dev, dev->eeprom.data, len);
 }
 EXPORT_SYMBOL_GPL(mt76_eeprom_init);

drivers/net/wireless/mediatek/mt76/mt76.h

@@ -1103,7 +1103,6 @@ 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_data_from_mtd(struct mt76_dev *dev, void *eep, int offset, int len);
-int mt76_get_of_eeprom(struct mt76_dev *dev, void *data, int offset, int len);
 
 struct mt76_queue *
 mt76_init_queue(struct mt76_dev *dev, int qid, int idx, int n_desc,