---

yaml --- r: 328130 b: refs/heads/master c: 8762cec h: refs/heads/master v: v3
git-mirror · Sep 28, 2012 · 1f70fc1 · 1f70fc1
1 parent 419a177
commit 1f70fc1
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Showing 2 changed files with 24 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e0e474a83c18f134e42c4845e19d0ef0751f43f0
+refs/heads/master: 8762cec8d9d06eddc9a80293a230d6e073568815
diff --git a/trunk/drivers/net/usb/smsc75xx.c b/trunk/drivers/net/usb/smsc75xx.c
@@ -756,6 +756,26 @@ static int smsc75xx_set_features(struct net_device *netdev,
 	return 0;
 }
 
+static int smsc75xx_wait_ready(struct usbnet *dev)
+{
+	int timeout = 0;
+
+	do {
+		u32 buf;
+		int ret = smsc75xx_read_reg(dev, PMT_CTL, &buf);
+		check_warn_return(ret, "Failed to read PMT_CTL: %d", ret);
+
+		if (buf & PMT_CTL_DEV_RDY)
+			return 0;
+
+		msleep(10);
+		timeout++;
+	} while (timeout < 100);
+
+	netdev_warn(dev->net, "timeout waiting for device ready");
+	return -EIO;
+}
+
 static int smsc75xx_reset(struct usbnet *dev)
 {
 	struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
@@ -764,6 +784,9 @@ static int smsc75xx_reset(struct usbnet *dev)
 
 	netif_dbg(dev, ifup, dev->net, "entering smsc75xx_reset");
 
+	ret = smsc75xx_wait_ready(dev);
+	check_warn_return(ret, "device not ready in smsc75xx_reset");
+
 	ret = smsc75xx_read_reg(dev, HW_CFG, &buf);
 	check_warn_return(ret, "Failed to read HW_CFG: %d", ret);