linux-kernel - Re: USB broken on Banana Pi in Linux 4.6

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Date:	Fri, 3 Jun 2016 08:35:11 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	Marc Haber <mh+linux-kernel@...schlus.de>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-usb@...r.kernel.org
Subject: Re: USB broken on Banana Pi in Linux 4.6

On Fri, Jun 03, 2016 at 08:53:58AM +0200, Marc Haber wrote:
> On Mon, May 30, 2016 at 01:47:12PM -0700, Greg KH wrote:
> > On Mon, May 30, 2016 at 09:02:54PM +0200, Marc Haber wrote:
> > > Hi,
> > > 
> > > on my Bananapis, in kernel 4.6 USB does not work. Kernel configuration
> > > is USB-wise identical to 4.5 (grepped for differences in (hci|usb)),
> > > and in 4.6 there is not even /dev/bus/usb.
> > > 
> > > In kernel 4.6, the message "ohci-platform: OHCI generic platform
> > > driver" is the last one, and "ehci-platform 1c14000.usb: EHCI Host
> > > Controller" is the first one that is missing.
> > > 
> > > Is this already a known issue? Or, does a 4.6 kernel need to be
> > > configured differently if you want USB?
> > 
> > Are you sure you configured in the correct host controller that you
> > want?  Have you done a diff of your .config files to see what you
> > changed?  How did you create your 4.6 config?
> 
> I used make oldconfig, and I diffed the configs for (hci|usb), and
> there is no difference.

There might be other things than HCI|USB that are the issue here...