[PATCH V1] dmaengine: tegra: add dma driver

Russell King - ARM Linux linux at arm.linux.org.uk
Mon Apr 23 23:06:59 EST 2012


On Mon, Apr 23, 2012 at 05:47:03PM +0530, Laxman Dewangan wrote:
> Hi Russell,
> On Monday 23 April 2012 02:11 PM, Vinod Koul wrote:
>> On Fri, 2012-04-20 at 17:46 +0530, Laxman Dewangan wrote:
>>> Thanks Vinod for quick review.
>> Since I was on vacation, I hadn't noticed Russell has already sent the
>> patches for omap dma support.
>> http://permalink.gmane.org/gmane.linux.ports.arm.omap/75034
>>
>> It would be nice if both the efforts are coordinated.
>>
>> Btw I like the virtual channel support introduced by Russell
>>
>
> Can you please point me the virtual channel related change? I am not  
> able to locate this like search for function vchan_* ().
> My driver is also on same line but not used vchan_* and also having  
> support for cyclic transfer.

It's only been posted in RFC form on linux-arm-kernel and linux-omap
lists.  The specific patch is:

http://lists.arm.linux.org.uk/lurker/message/20120418.101116.082b350f.en.html

I wouldn't call it perfected yet, but usable.  It doesn't have any
knowledge about cyclic transfers either.


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