[PATCH] ep93xx: Implement double buffering for M2M DMA channels

[H Hartley Sweeten]

On Wednesday, March 21, 2012 12:39 PM, Mika Westerberg wrote:
> On Tue, Mar 20, 2012 at 09:09:26AM +0100, Rafal Prylowski wrote:
>> Implement double buffering for M2M DMA channels.
>> 
>> Signed-off-by: Rafal Prylowski <prylowski at metasoft.pl>
>
> The subject line prefix should probably be 'dmaengine/ep93xx_dma: ' but
> otherwise this looks good.
>
> Acked-by: Mika Westerberg <mika.westerberg at iki.fi>

Mika,

Did you test this patch or just review it?

On my system it doesn't work. I think it has something to do with the
changes to m2m_hw_interrupt but I haven't tracked it down yet.

It looks like what's missing is a:

	edmac->edma->hw_submit(edmac);

But, maybe that's not needed with double buffering?

Regards,
Hartley