linux-kernel - Re: bug? dwc2: insufficient fifo memory

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Date:   Tue, 7 Mar 2017 21:50:41 +0000
From:   John Youn <John.Youn@...opsys.com>
To:     John Stultz <john.stultz@...aro.org>,
        John Youn <John.Youn@...opsys.com>
CC:     lkml <linux-kernel@...r.kernel.org>,
        Linux USB Mailing List <linux-usb@...r.kernel.org>
Subject: Re: bug? dwc2: insufficient fifo memory

+linux-usb

On 2/24/2017 2:46 PM, John Stultz wrote:
> Hey John,
>   So after the USB tree landed in 4.11-rc, I've been seeing the
> following warning at bootup.
>
> It seems the fifo_mem/total_fifo_size value on hikey is 1920, but I'm
> seeing the addresses zip upward quickly as the txfsz values are all
> 2048.  Not exactly sure whats wrong here.  Things still seem to work
> properly.
>

Hi John,

Could you send us a register dump before and after you load the
function? You can get this through debugfs.

Regards,
John