From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ee0-x22b.google.com ([2a00:1450:4013:c00::22b]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1V44t3-0003ph-Cg for linux-mtd@lists.infradead.org; Tue, 30 Jul 2013 08:02:29 +0000 Received: by mail-ee0-f43.google.com with SMTP id e52so1622179eek.30 for ; Tue, 30 Jul 2013 01:02:07 -0700 (PDT) Message-ID: <51F772FC.90404@gmail.com> Date: Tue, 30 Jul 2013 10:02:04 +0200 From: Daniel Mack MIME-Version: 1.0 To: Thomas Petazzoni Subject: Re: [PATCH 00/13] pxa3xx patches to support mvebu builds References: <1375140263-2028-1-git-send-email-ezequiel.garcia@free-electrons.com> <51F76EBA.1020504@gmail.com> <20130730095310.38400ca6@skate> In-Reply-To: <20130730095310.38400ca6@skate> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Lior Amsalem , Jason Cooper , Artem Bityutskiy , leiwen@marvell.com, haojian.zhuang@gmail.com, linux-mtd@lists.infradead.org, grinberg@compulab.co.il, Ezequiel Garcia , Gregory Clement , eric.miao@marvell.com, computersforpeace@gmail.com, David Woodhouse , Willy Tarreau , nikita@compulab.co.il List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 30.07.2013 09:53, Thomas Petazzoni wrote: > On Tue, 30 Jul 2013 09:43:54 +0200, Daniel Mack wrote: >> Interesting, because I'm working on a dmaengine implementation for PXA >> right now. I'm not even half through, but I'm making progress, and I'm >> not sure yet how to merge it. Because there won't be any migration path, >> it'll be a bigger set that has to go in in one in order to prevent build >> breakage. > > Aren't drivers/dma/mmp_pdma.c and drivers/dma/mmp_tdma.c already > dmaengine drivers for PXA ? Yes, I saw the pdma driver as well, after I started my own implementation. However, the tree is full of users of the proprietary API, and moving them over won't be gap-less. > Considering the amount of time it will take for PXA to migrate over to > the dmaengine API, I think we'd want those clean up patches to go in > first, so that in parallel to the work you're doing on PXA dmaengine > usage, we can move forward with improving the pxa3xx_nand driver to > make it usable on Armada 370/XP. Ok, fine. I'll rework my set on top of Ezequiel's then. Thanks, Daniel