usb: hub: Call usb_update_hub_device() after hub descriptor is fetched

After fetching hub descriptor, we need to call USB uclass operation
update_hub_device() to notify HCD to do some preparation work.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/common/usb_hub.c b/common/usb_hub.c
index bbb1155..70bc6e2 100644 (file)
--- a/common/usb_hub.c
+++ b/common/usb_hub.c
@@ -789,6 +789,17 @@ static int usb_hub_configure(struct usb_device *dev)
 
 #ifdef CONFIG_DM_USB
        /*
+        * Update USB host controller's internal representation of this hub
+        * after the hub descriptor is fetched.
+        */
+       ret = usb_update_hub_device(dev);
+       if (ret < 0 && ret != -ENOSYS) {
+               debug("%s: failed to update hub device for HCD (%x)\n",
+                     __func__, ret);
+               return ret;
+       }
+
+       /*
         * A maximum of seven tiers are allowed in a USB topology, and the
         * root hub occupies the first tier. The last tier ends with a normal
         * USB device. USB 3.0 hubs use a 20-bit field called 'route string'