mt76: mt7921: continue to probe driver when fw already downloaded

When reboot system, no power cycles, firmware is already downloaded,
return -EIO will break driver as error:
mt7921e: probe of 0000:03:00.0 failed with error -5

Skip firmware download and continue to probe.

Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Fixes: 1c099ab44727c ("mt76: mt7921: add MCU support")
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
index c2c4dc1..cd690c6 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
@@ -931,7 +931,7 @@ static int mt7921_load_firmware(struct mt7921_dev *dev)
        ret = mt76_get_field(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_N9_RDY);
        if (ret) {
                dev_dbg(dev->mt76.dev, "Firmware is already download\n");
-               return -EIO;
+               goto fw_loaded;
        }
 
        ret = mt7921_load_patch(dev);
@@ -949,6 +949,7 @@ static int mt7921_load_firmware(struct mt7921_dev *dev)
                return -EIO;
        }
 
+fw_loaded:
        mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_FWDL], false);
 
 #ifdef CONFIG_PM