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usb: xhci: Initialize dev_state to 0 in the input slot context

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Per xHCI spec chapter 6.2.2 table 6-7, as input, software shall
initialize the dev_state field to '0'. Though this does not seem
to cause any issue with most xHC implementations, let's do this
to conform with the spec.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Marek Vasut <marek.vasut@gmail.com>
Tested-by: Matthias Blankertz <matthias.blankertz@cetitec.com>
This commit is contained in:
Bin Meng 2018-05-23 23:40:48 -07:00 committed by Marek Vasut
parent 793c819c6e
commit ae751b060e
1 changed files with 1 additions and 0 deletions
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drivers/usb/host/xhci.c
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@ -1452,6 +1452,7 @@ static int xhci_update_hub_device(struct udevice *dev, struct usb_device *udev)
think_time = (think_time / 666) - 1;
if (udev->speed == USB_SPEED_HIGH)
slot_ctx->tt_info |= cpu_to_le32(TT_THINK_TIME(think_time));
slot_ctx->dev_state = 0;
return xhci_configure_endpoints(udev, false);
}