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From: Tomasz Figa <tomasz.figa@gmail.com>
To: Florian Meier <florian.meier@koalo.de>
Cc: Stephen Warren <swarren@wwwdotorg.org>, Vinod Koul <vinod.koul@intel.com>,
        Dan Williams <dan.j.williams@intel.com>,
        Russell King - ARM Linux <linux@arm.linux.org.uk>,
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        Mark Brown <broonie@kernel.org>,
        linux-rpi-kernel <linux-rpi-kernel@lists.infradead.org>,
        dmaengine <dmaengine@vger.kernel.org>,
        linux-arm-kernel@lists.infradead.org,
        Matt Porter <matt.porter@linaro.org>
Subject: Re: [PATCHv4] dmaengine: Add support for BCM2835
Date: Thu, 14 Nov 2013 17:23:08 +0100
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On Thursday 14 of November 2013 17:14:31 Florian Meier wrote:
> >> >> I am becoming desperate anyway that this migration will ever fully
> >> >> take place....
> >> >
> >> > Why not? It's just a matter of people like you working on this (and
> >> > addressing some review comments ;)).
> >>
> >> The most common comment about this is that people will not put effort in
> >> the upstream kernel as long as there is no comfortable way for debugging
> >> in the upstream kernel (i.e. at least USB support).......
> >
> > Right, you need USB to have ethernet working. Still, IMHO UART (for
> > console) + ethernet (for file transfer or NFS root) is the reasonable
> > setup allowing you to debug further drivers in a comfortable way.
> 
> I am fine with UART and switching SD cards :-)
> But apparently this is not generally accepted.

Still, isn't some work on USB support for RPi already going on? I believe
Matt Porter (now on Cc) has been working on unifying dwc2 host-mode
driver with Samsung s3c-hsotg device-mode driver (for the same IP) to
get full OTG support on all applicable platforms.

Best regards,
Tomasz