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From: ludovic.desroches@atmel•com (Ludovic Desroches)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 3/3] at_hdmac: add FIFO configuration parameter to DMA DT binding
Date: Fri, 31 May 2013 11:16:27 +0200	[thread overview]
Message-ID: <20130531091627.GD11384@ludovic.desroches@atmel.com> (raw)
In-Reply-To: <20130530163936.GC23653@game.jcrosoft.org>

On Thu, May 30, 2013 at 06:39:36PM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote:
> On 18:32 Thu 30 May     , Nicolas Ferre wrote:
> > On 30/05/2013 18:08, ludovic.desroches at atmel.com :
> > >From: Ludovic Desroches <ludovic.desroches@atmel•com>
> > >
> > >For most devices the FIFO configuration is the same i.e. when half FIFO size is
> > >available/filled, a source/destination request is serviced. But USART devices
> > >have to do it when there is enough space/data available to perform a single
> > >AHB access so the ASAP configuration.
> > >
> > >Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft•com>
> > >Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel•com>
> > 
> > Clear and neat: thanks Ludo.
> 
> agreed
> 
> can we apply this via AT91 as this depends on some cleanup I did on DT and
> could result on some nigthmware conflict
> 

In fact, I am not sure it's the best solution. I have noticed that there is a
conflict with a patch sent by Nicolas (dmaengine: at_hdmac: extend hardware
handshaking interface identification) which is already in Vinod's tree but
which is not present on Jean-Christophe's cleanup tree on which I based these
patches.

Moreover this patch doesn't use macros introduced by Nicolas' patch. I may
update it and it should go through Vinod's tree with a dependence on patch 1/3.

What's your point of view?

  reply	other threads:[~2013-05-31  9:16 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-30 16:08 [PATCH 0/3] at_hdmac: dt dma bindings update ludovic.desroches at atmel.com
2013-05-30 16:08 ` [PATCH 1/3] ARM: at91: dt: add header to define at_hdmac configuration ludovic.desroches at atmel.com
2013-05-31 21:30   ` Arnd Bergmann
2013-06-03  7:32     ` Ludovic Desroches
2013-06-04 13:17       ` Nicolas Ferre
2013-05-30 16:08 ` [PATCH 2/3] ARM: at91: dt: switch DMA DT bindings to pre-processor ludovic.desroches at atmel.com
2013-05-30 16:08 ` [PATCH 3/3] at_hdmac: add FIFO configuration parameter to DMA DT binding ludovic.desroches at atmel.com
2013-05-30 16:32   ` Nicolas Ferre
2013-05-30 16:39     ` Jean-Christophe PLAGNIOL-VILLARD
2013-05-31  9:16       ` Ludovic Desroches [this message]
2013-05-31  9:31         ` Nicolas Ferre
2013-05-31 15:11           ` Jean-Christophe PLAGNIOL-VILLARD
2013-05-31 23:11           ` Olof Johansson
2013-06-03  7:39             ` Ludovic Desroches
2013-05-30 16:37 ` [PATCH 0/3] at_hdmac: dt dma bindings update Jean-Christophe PLAGNIOL-VILLARD
2013-05-30 17:26 ` Vinod Koul
2013-05-30 20:13   ` Jean-Christophe PLAGNIOL-VILLARD
2013-05-31  8:04     ` Nicolas Ferre

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