From: Bin Meng <bmeng.cn@gmail.com>
Date: Wed, 19 Jul 2017 13:51:18 +0000 (+0800)
Subject: usb: hub: Call usb_update_hub_device() after hub descriptor is fetched
X-Git-Tag: v2017.09-rc1~32^2~15
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=81060bb1c02abb242b73f118ce297dbe483a40f7;p=u-boot

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 bbb1155089..70bc6e2931 100644
--- a/common/usb_hub.c
+++ b/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