Re: [PATCH 0/4] omap4: hsmmc: Adding ADMA support

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* Kishore Kadiyala <kishore.kadiyala@xxxxxx> [110118 09:19]:
> This patch series adds support for ADMA on MMC1 & MMC2 controllers on OMAP4.
> There is no performance improvement observed using ADMA over SDMA.
> Advantage using ADMA could be reducing contention over SDMA.
> Also the series includes some cleanup.

To me it seems that the only sane way to deal with multiple different
DMA enginges is to implement them all with drivers/dma/dmaengine.c.
Otherwise we'll end up with multiple custom ADMA implementations in
each driver. We need to also make SDMA use the dmaengine code.

If the current dmaengine code does not support this, we need to
improve it to deal with cases like these.

Regards,

Tony
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