mt7615 read eeprom

mt7615 reads the calibration according to the following function ,
read eeprom first, if you don't get the data, then read efuse

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static int mt7615_eeprom_load(struct mt7615_dev *dev, u32 addr)
{
int ret;

      ret = mt76_eeprom_init(&dev->mt76, MT7615_EEPROM_FULL_SIZE);
      if (ret < 0) 
            return ret;

    return mt7615_efuse_init(dev, addr);

}

mt76_get_of_eeprom is called last in mt76_eeprom_init

mt76_eeprom_init(struct mt76_dev *dev, int len)
{
dev->eeprom.size = len;
dev->eeprom.data = devm_kzalloc(dev->dev, len, GFP_KERNEL);
if (!dev->eeprom.data)
return -ENOMEM;

    return !mt76_get_of_eeprom(dev, dev->eeprom.data, 0, len);

}

In this function, we can find that the eeprom mentioned here is actually'mediatek,mtd-eeprom', but this'mediatek,mtd-eeprom' is actually the partition data specified in dts .

ls: mediatek,mtd-eeprom = <&factory 0x0>;

This is not a hardware eeprom storage device .

int mt76_get_of_eeprom(struct mt76_dev *dev, void *eep, int offset, int len)
{
.......
list = of_get_property(np, "mediatek,mtd-eeprom", &size);
if (!list)
return -ENOENT;
........
}

According to my understanding, it only supports reading data from efuse and flash( mediatek,mtd-eeprom = <&factory 0x0>), and does not see the operation of reading data from eeprom.

If I have eeprom and efuse on my pcie card, does it support reading eeprom on pcie card?

Read the mt7615_eeprom_load, mt76_eeprom_init, mt76_get_of_eeprom, and mt7615_efuse_init paths first. Determine whether a PCIe EEPROM path exists separately from mediatek,mtd-eeprom and efuse, then document the supported behavior or the required scope for adding it.