linux-kernel - Re: [PATCH V1] dmaengine: tegra: add dma driver

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Date:	Wed, 25 Apr 2012 15:13:48 +0530
From:	Vinod Koul <vinod.koul@...ux.intel.com>
To:	Laxman Dewangan <ldewangan@...dia.com>
Cc:	Russell King - ARM Linux <linux@....linux.org.uk>,
	"dan.j.williams@...el.com" <dan.j.williams@...el.com>,
	"grant.likely@...retlab.ca" <grant.likely@...retlab.ca>,
	"rob.herring@...xeda.com" <rob.herring@...xeda.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree-discuss@...ts.ozlabs.org" 
	<devicetree-discuss@...ts.ozlabs.org>,
	Stephen Warren <swarren@...dia.com>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>
Subject: Re: [PATCH V1] dmaengine: tegra: add dma driver

On Wed, 2012-04-25 at 15:12 +0530, Laxman Dewangan wrote:
> On Wednesday 25 April 2012 03:03 PM, Vinod Koul wrote:
> > On Wed, 2012-04-25 at 14:31 +0530, Laxman Dewangan wrote:
> >> I had a  communication with Russell on another change thread and
> >> understand that some more work need to be done in virt_chan to support
> >> cyclic one.
> >>
> >> I want to have the cyclic dma support in my driver so I want to go on
> >> following steps:
> >> 1. I will post the patch for tegra dma which will not use the virt_dma
> >> so that my driver will be independent of Russel's change.
> > which driver? A new driver for cyclic support only or on top of
> > Russell's changes?
> 
> I am referring the Nvidia Tegra's APB dma driver. This will be 
> completely new driver based on dmaengine. We have old dma driver under 
> mach-tegra/dma.c which has tegra specific apis. Want to move this driver 
> to generic dmaengine based api.
Okay, lets review the new patchset then :-)


-- 
~Vinod

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