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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>
Bin Meng 6 years ago
parent
commit
81060bb1c0
1 changed files with 11 additions and 0 deletions
  1. 11 0
      common/usb_hub.c

+ 11 - 0
common/usb_hub.c

@@ -788,6 +788,17 @@ static int usb_hub_configure(struct usb_device *dev)
 	      "" : "no ");
 
 #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