linux-kernel - Re: [PATCH v12 3/6] fpga: add simple-fpga-bus

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Message-ID: <20151028100714.GB7779@jcartwri.amer.corp.natinst.com>
Date:	Wed, 28 Oct 2015 05:07:14 -0500
From:	Josh Cartwright <joshc@...com>
To:	atull@...nsource.altera.com
Cc:	gregkh@...uxfoundation.org,
	Moritz Fischer <moritz.fischer@...us.com>, monstr@...str.eu,
	michal.simek@...inx.com, Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Jonathan Corbet <corbet@....net>, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, linux-doc@...r.kernel.org,
	pantelis.antoniou@...sulko.com, delicious.quinoa@...il.com,
	dinguyen@...nsource.altera.com
Subject: Re: [PATCH v12 3/6] fpga: add simple-fpga-bus

On Tue, Oct 27, 2015 at 05:09:12PM -0500, atull@...nsource.altera.com wrote:
> From: Alan Tull <atull@...nsource.altera.com>
> 
> The Simple FPGA bus uses the FPGA Manager Framework and the
> FPGA Bridge Framework to provide a manufactorer-agnostic
> interface for reprogramming FPGAs that is Device Tree
> Overlays-based.

Do you intend the "simple-fpga-bus" to be used on Zynq as well?  The
whole concept of the socfpga's "FPGA Bridge" doesn't map to the Zynq at
all, from what I can tell.

Therefore, I would have expected the FPGA Bridge drivers to sit under
the fpga-socfpga driver, and not be a first class feature of the
kernels' FPGA manager subsystem.

  Josh
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