From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chin Liang See <clsee@altera.com>
Date: Wed, 4 May 2016 17:36:33 +0800
Subject: [U-Boot] [PATCH 2/7] usb: dwc2: Resend setup packet in all fail
	cases
In-Reply-To: <1462308680-9366-2-git-send-email-marex@denx.de>
References: <1462308680-9366-1-git-send-email-marex@denx.de>
 <1462308680-9366-2-git-send-email-marex@denx.de>
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To: u-boot@lists.denx.de

On Tue, 2016-05-03 at 22:51 +0200, Marek Vasut wrote:
> The USB function can respond to a Setup packet with ACK or, in
> case it's busy, it can ignore the Setup packet. The USB function
> usually gets busy if we hammer it with Control EP transfers too
> much (ie. sending multiple Get Descriptor requests in a single
> microframe tends to trigger it on certain USB sticks). The DWC2
> controller will interpret not receiving an ACK after Setup packet
> as XACTERR. Check for this condition and if it happens, retry
> sending the Setup packet.
> 
> Signed-off-by: Marek Vasut <marex@denx.de>
> Cc: Chin Liang See <clsee@altera.com>
> Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
> Cc: Hans de Goede <hdegoede@redhat.com>
> Cc: Stefan Roese <sr@denx.de>
> Cc: Stephen Warren <swarren@nvidia.com>
> ---
>  drivers/usb/host/dwc2.c | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 

Reviewed-by: Chin Liang See <clsee@altera.com>
Tested-by: Chin Liang See <clsee@altera.com>

Thanks
Chin Liang