From: ezequiel.garcia@free-electrons.com (Ezequiel Garcia)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 01/20] mtd: pxa3xx-nand: replace pxa_request_dma with dmaengine
Date: Thu, 8 Aug 2013 07:12:23 -0300 [thread overview]
Message-ID: <20130808101221.GC2295@localhost> (raw)
In-Reply-To: <52033DE1.5050700@gmail.com>
On Thu, Aug 08, 2013 at 08:42:41AM +0200, Daniel Mack wrote:
> On 07.08.2013 19:46, Ezequiel Garcia wrote:
> > Hi Daniel,
> >
> > On Wed, Aug 07, 2013 at 05:33:50PM +0200, Daniel Mack wrote:
> >> From: Zhangfei Gao <zhangfei.gao@marvell.com>
> >>
> >> [zonque at gmail.com: rebased in top of l2-mtd.git. The newly introduced
> >> ARCH_HAS_DMA hack was changed into a check for CONFIG_HAS_DMA]
> >>
> >
> > Are you sure you need to introduce the CONFIG_HAS_DMA ifdef?
> >
> > The reason I introduced the ARCH_HAS_DMA macro was to avoid including
> > the "mach/dma.h" header. Now that you've removed it, I don't think
> > this driver can be used in any platform where CONFIG_HAS_DMA=n.
>
> Well, yes it can, or at least you could decide to use it without DMA on
> PXA/MMP. The idea of CONFIG_HAS_DMA is to save binary size.
>
Ok, I see.
I think maybe we will have to add something to force use_dma=0
when "armada370-nand" is used. AFAIK, the dmaengine does not support
the kind of DMA operations this driver needs.
I can take care of that if this patchset hits mainline before
we have something really usable for Armada 370/XP NAND.
--
Ezequiel Garc?a, Free Electrons
Embedded Linux, Kernel and Android Engineering
http://free-electrons.com
next prev parent reply other threads:[~2013-08-08 10:12 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-07 15:33 [PATCH 00/20] ARM: pxa: move core and drivers to dmaengine Daniel Mack
2013-08-07 15:33 ` [PATCH 01/20] mtd: pxa3xx-nand: replace pxa_request_dma with dmaengine Daniel Mack
2013-08-07 17:46 ` Ezequiel Garcia
2013-08-08 6:42 ` Daniel Mack
2013-08-08 10:12 ` Ezequiel Garcia [this message]
2013-08-08 10:14 ` Daniel Mack
2013-08-07 15:33 ` [PATCH 02/20] mtd: pxa3xx-nand: use mmp_pdma_filter_fn and dma_request_slave_channel_compat Daniel Mack
2013-08-07 15:33 ` [PATCH 03/20] ARM: pxa: ssp: add shortcut for &pdev->dev Daniel Mack
2013-08-08 7:32 ` Brian Norris
2013-08-08 7:52 ` Artem Bityutskiy
2013-08-08 8:20 ` Daniel Mack
2013-08-07 15:33 ` [PATCH 04/20] ARM: pxa: ssp: add DT bindings Daniel Mack
2013-08-07 15:54 ` Arnd Bergmann
2013-08-07 15:33 ` [PATCH 05/20] ARM: pxa: ssp: use devm_ functions Daniel Mack
2013-08-07 15:33 ` [PATCH 06/20] tty: serial: pxa: remove old cruft Daniel Mack
2013-08-12 8:19 ` Daniel Mack
2013-08-12 18:08 ` Greg KH
2013-08-07 15:33 ` [PATCH 07/20] spi: spi-pxa2xx: remove legacy PXA DMA bits Daniel Mack
2013-08-07 15:55 ` Mark Brown
2013-08-07 15:59 ` Daniel Mack
2013-08-07 16:41 ` Mark Brown
2013-08-07 15:33 ` [PATCH 08/20] mmc: host: pxamci: switch over to dmaengine use Daniel Mack
2014-10-15 18:32 ` Vasily Khoruzhick
2014-10-16 17:57 ` Vasily Khoruzhick
2013-08-07 15:33 ` [PATCH 09/20] ata: pdata_pxa: migrate over to dmaengine usage Daniel Mack
2013-08-07 15:59 ` Arnd Bergmann
2013-08-07 15:33 ` [PATCH 10/20] net: irda: pxaficp_ir: switch to dmaengine Daniel Mack
2013-08-07 15:34 ` [PATCH 11/20] net: smc91x.c: switch to generic buf-to-buf DMA offload Daniel Mack
2013-08-07 15:34 ` [PATCH 12/20] net: smc911x.c: switch to dmaengine API Daniel Mack
2013-08-07 15:34 ` [PATCH 13/20] ASoC: pxa: pxa-ssp: add DT bindings Daniel Mack
2013-08-07 16:40 ` Mark Brown
2013-08-08 9:39 ` Daniel Mack
2013-08-08 13:20 ` Mark Brown
2013-08-09 13:03 ` Daniel Mack
2013-08-07 15:34 ` [PATCH 14/20] ASoC: pxa: use snd_dmaengine_dai_dma_data Daniel Mack
2013-08-07 15:57 ` Mark Brown
2013-08-07 15:34 ` [PATCH 15/20] ASoC: pxa: pxa-ssp: set dma filter data from startup hook Daniel Mack
2013-08-07 15:58 ` Mark Brown
2013-08-07 15:34 ` [PATCH 16/20] ASoC: pxa: add DT bindings for pxa2xx-pcm Daniel Mack
2013-08-07 16:06 ` Mark Brown
2013-08-07 15:34 ` [PATCH 17/20] ASoC: pxa: pxa-pcm-lib: switch over to snd-soc-dmaengine-pcm Daniel Mack
2013-08-07 16:07 ` Mark Brown
2013-08-07 16:10 ` Daniel Mack
2013-08-07 16:32 ` Mark Brown
2013-08-08 8:18 ` Daniel Mack
2013-08-08 8:44 ` Lars-Peter Clausen
2013-08-08 9:03 ` Daniel Mack
2013-08-08 9:36 ` Mark Brown
2013-08-08 9:43 ` Daniel Mack
2013-08-08 10:35 ` Mark Brown
2013-08-08 10:39 ` Daniel Mack
2013-08-08 11:03 ` Mark Brown
2013-08-08 10:25 ` Russell King - ARM Linux
2013-08-07 15:34 ` [PATCH 18/20] ARM: pxa: register static mmp_pdma device Daniel Mack
2013-08-07 15:34 ` [PATCH 19/20] ARM: mmp: " Daniel Mack
2013-08-07 15:34 ` [PATCH 20/20] ARM: pxa: remove old DMA implementation Daniel Mack
2013-08-07 16:08 ` [PATCH 00/20] ARM: pxa: move core and drivers to dmaengine Arnd Bergmann
2013-08-09 22:50 ` Robert Jarzmik
2013-08-10 10:56 ` Daniel Mack
2013-08-11 20:05 ` Robert Jarzmik
2013-08-14 10:00 ` Vinod Koul
2013-08-15 15:22 ` Robert Jarzmik
2013-08-15 15:30 ` Daniel Mack
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