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

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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>
This commit is contained in:
Bin Meng
2017-07-19 21:51:18 +08:00
committed by Marek Vasut
parent 9ca1b4bab1
commit 81060bb1c0
1 changed files with 11 additions and 0 deletions
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11
common/usb_hub.c
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@@ -788,6 +788,17 @@ static int usb_hub_configure(struct usb_device *dev)
"" : "no "); "" : "no ");
#ifdef CONFIG_DM_USB #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 * 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 * root hub occupies the first tier. The last tier ends with a normal