mt76: mt7615: split up firmware loading functions

Preparation for adding MT7622 support
Signed-off-by: Felix Fietkau <nbd@nbd.name>

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

@@ -345,7 +345,7 @@ static int mt7615_driver_own(struct mt7615_dev *dev)
 	return 0;
 }
 
-static int mt7615_load_patch(struct mt7615_dev *dev)
+static int mt7615_load_patch(struct mt7615_dev *dev, const char *name)
 {
 	const struct mt7615_patch_hdr *hdr;
 	const struct firmware *fw = NULL;
@@ -362,7 +362,7 @@ static int mt7615_load_patch(struct mt7615_dev *dev)
 		return -EAGAIN;
 	}
 
-	ret = request_firmware(&fw, MT7615_ROM_PATCH, dev->mt76.dev);
+	ret = request_firmware(&fw, name, dev->mt76.dev);
 	if (ret)
 		goto out;
 
@@ -458,13 +458,13 @@ mt7615_mcu_send_ram_firmware(struct mt7615_dev *dev,
 	return 0;
 }
 
-static int mt7615_load_ram(struct mt7615_dev *dev)
+static int mt7615_load_n9(struct mt7615_dev *dev, const char *name)
 {
 	const struct mt7615_fw_trailer *hdr;
 	const struct firmware *fw;
 	int ret;
 
-	ret = request_firmware(&fw, MT7615_FIRMWARE_N9, dev->mt76.dev);
+	ret = request_firmware(&fw, name, dev->mt76.dev);
 	if (ret)
 		return ret;
 
@@ -491,9 +491,18 @@ static int mt7615_load_ram(struct mt7615_dev *dev)
 		goto out;
 	}
 
+out:
 	release_firmware(fw);
+	return ret;
+}
+
+static int mt7615_load_cr4(struct mt7615_dev *dev, const char *name)
+{
+	const struct mt7615_fw_trailer *hdr;
+	const struct firmware *fw;
+	int ret;
 
-	ret = request_firmware(&fw, MT7615_FIRMWARE_CR4, dev->mt76.dev);
+	ret = request_firmware(&fw, name, dev->mt76.dev);
 	if (ret)
 		return ret;
 
@@ -529,6 +538,17 @@ static int mt7615_load_ram(struct mt7615_dev *dev)
 	return ret;
 }
 
+static int mt7615_load_ram(struct mt7615_dev *dev)
+{
+	int ret;
+
+	ret = mt7615_load_n9(dev, MT7615_FIRMWARE_N9);
+	if (ret)
+		return ret;
+
+	return mt7615_load_cr4(dev, MT7615_FIRMWARE_CR4);
+}
+
 static int mt7615_load_firmware(struct mt7615_dev *dev)
 {
 	int ret;
@@ -541,7 +561,7 @@ static int mt7615_load_firmware(struct mt7615_dev *dev)
 		return -EIO;
 	}
 
-	ret = mt7615_load_patch(dev);
+	ret = mt7615_load_patch(dev, MT7615_ROM_PATCH);
 	if (ret)
 		return ret;