[U-Boot] [PATCH] usb: gadget: ci_udc: implement usb_ep_ops dequeue callback

[Stephen Warren]

On 08/27/2015 05:08 AM, Marek Vasut wrote:
> On Thursday, August 27, 2015 at 01:00:50 PM, Peng Fan wrote:
>> Implement endpoint dequeue callback function.
>>
>> Without this function, uboot will hang when executing fastboot comamnd.
>> See following flow:
>> "fastboot_tx_write_str->fastboot_tx_write->usb_ep_dequeue->ep->ops->dequeue
>> " without implement ci_udc dequeue function, ep->ops->dequeue is NULL, then
>> uboot will hang.
>>
>> Tested on mx6qsabresd board with fastboot enabled.

>> diff --git a/drivers/usb/gadget/ci_udc.c b/drivers/usb/gadget/ci_udc.c

>> +static int ci_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req)

>> +	if (ci_req->req.status == -EINPROGRESS) {
>> +		ci_req->req.status = -ECONNRESET;
>> +		if (ci_req->req.complete)
>> +			ci_req->req.complete(_ep, _req);
>> +	}

Is there no need to reprogram the HW to abort the transfer?