Using DMA interrupt on MPC8313

Kumar Gala galak at kernel.crashing.org
Fri Jun 13 09:01:41 EST 2008


The dmaengine provides a generic set of APIs w/a FSL dma backend.  It  
might be the case that your need of dma doesnt fit into the current  
set of APIs.

- k

On Jun 12, 2008, at 3:04 PM, Ron Madrid wrote:

> Well in that case wouldn't I need to use the fsldma driver?  Or is  
> dmaengine a generic dma driver?
>
> Ron
> --- Kumar Gala <galak at kernel.crashing.org> wrote:
>
>>
>> On Jun 12, 2008, at 2:35 PM, Ron Madrid wrote:
>>
>>> I'm trying to write a driver that would make use of the DMA on the
>>> MPC8313.  I'm attempting to
>>> register the interrupt with request_irq but it is not passing.  Is
>>> there something that I need to
>>> do before I call request_irq, maybe in the dts or somewhere else?
>>
>>
>> any reason you aren't using the dmaengine driver?
>>
>> - k
>>




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