mt76: mt7615: introduce __mt7663_load_firmware routine

Introduce __mt7663_load_firmware routine to load firmware for usb
devices.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7615/mcu.c

@@ -2078,12 +2078,10 @@ static int mt7663_load_n9(struct mt7615_dev *dev, const char *name)
 	return ret;
 }
 
-static int mt7663_load_firmware(struct mt7615_dev *dev)
+int __mt7663_load_firmware(struct mt7615_dev *dev)
 {
 	int ret;
 
-	mt76_set(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_BYPASS_TX_SCH);
-
 	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");
@@ -2109,12 +2107,26 @@ static int mt7663_load_firmware(struct mt7615_dev *dev)
 		return -EIO;
 	}
 
-	mt76_clear(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_BYPASS_TX_SCH);
-
 	dev_dbg(dev->mt76.dev, "Firmware init done\n");
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(__mt7663_load_firmware);
+
+static int mt7663_load_firmware(struct mt7615_dev *dev)
+{
+	int ret;
+
+	mt76_set(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_BYPASS_TX_SCH);
+
+	ret = __mt7663_load_firmware(dev);
+	if (ret)
+		return ret;
+
+	mt76_clear(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_BYPASS_TX_SCH);
+
+	return 0;
+}
 
 int mt7615_mcu_init(struct mt7615_dev *dev)
 {

drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h

@@ -462,5 +462,6 @@ int mt7615_mcu_set_sku_en(struct mt7615_phy *phy, bool enable);
 int mt7615_dfs_init_radar_detector(struct mt7615_phy *phy);
 
 int mt7615_init_debugfs(struct mt7615_dev *dev);
+int __mt7663_load_firmware(struct mt7615_dev *dev);
 
 #endif