[PATCH] ep93xx: Implement double buffering for M2M DMA channels
From: Mika Westerberg <hidden>
Date: 2012-03-23 07:05:48
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On Thu, Mar 22, 2012 at 09:19:10PM -0500, H Hartley Sweeten wrote:
Did you test this patch or just review it?
I tested and reviewed 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?
Did you try without your patch and adding my VIC hack? That's what I did when I first got this patch and I saw no problems. I tested with audio (M2P), mmc_spi (M2M) and dmatest (M2M).