mt76: mt7615: introduce mt7615_mcu_wait_response

Introduce mt7615_mcu_wait_response in order to be reused parsing mt7663u
mcu messages

Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt7615/mcu.c

@@ -144,12 +144,33 @@ mt7615_mcu_parse_response(struct mt7615_dev *dev, int cmd,
 	return ret;
 }
 
+int mt7615_mcu_wait_response(struct mt7615_dev *dev, int cmd, int seq)
+{
+	unsigned long expires = jiffies + 20 * HZ;
+	struct sk_buff *skb;
+	int ret = 0;
+
+	while (true) {
+		skb = mt76_mcu_get_response(&dev->mt76, expires);
+		if (!skb) {
+			dev_err(dev->mt76.dev, "Message %d (seq %d) timeout\n",
+				cmd, seq);
+			return -ETIMEDOUT;
+		}
+
+		ret = mt7615_mcu_parse_response(dev, cmd, skb, seq);
+		if (ret != -EAGAIN)
+			break;
+	}
+
+	return ret;
+}
+
 static int
 mt7615_mcu_msg_send(struct mt76_dev *mdev, int cmd, const void *data,
 		    int len, bool wait_resp)
 {
 	struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
-	unsigned long expires = jiffies + 20 * HZ;
 	struct sk_buff *skb;
 	int ret, seq;
 
@@ -163,19 +184,8 @@ mt7615_mcu_msg_send(struct mt76_dev *mdev, int cmd, const void *data,
 	if (ret)
 		goto out;
 
-	while (wait_resp) {
-		skb = mt76_mcu_get_response(mdev, expires);
-		if (!skb) {
-			dev_err(mdev->dev, "Message %d (seq %d) timeout\n",
-				cmd, seq);
-			ret = -ETIMEDOUT;
-			break;
-		}
-
-		ret = mt7615_mcu_parse_response(dev, cmd, skb, seq);
-		if (ret != -EAGAIN)
-			break;
-	}
+	if (wait_resp)
+		ret = mt7615_mcu_wait_response(dev, cmd, seq);
 
 out:
 	mutex_unlock(&mdev->mcu.mutex);