Re: [PATCH 05/39] ARM: ux500: Stop passing MMC's platform data for Device Tree boots

On Wed, May 15, 2013 at 11:51 AM, Lee Jones [off-list ref] wrote:

It was required to pass DMA channel configuration information to the
MMC driver before the new DMA API was in place. Now that it is, and
is fully compatible with Device Tree we can stop doing that.

Reviewed-by: Linus Walleij <redacted>
Signed-off-by: Lee Jones <redacted>

So since the use of dma_request_slave_channel() is not upstream,
I guess this will break DMA use (i.e slow down transfers!) on all
device tree boots?

I'd be happy to apply it once the MMCI patch is in linux-next
indicating there may just be a window in the merge period
where it falls back to IRQ mode, but I don't want to disable
DMA on DT boots for an entire kernel cycle just like that.

Not applied as of yet.

Yours,
Linus Walleij
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