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 ---
Changes in v3: None Changes in v2: None
common/usb_hub.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/common/usb_hub.c b/common/usb_hub.c index bbb1155..70bc6e2 100644 --- 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'