Re: [PATCH 06/13] DMAENGINE: driver for the ARM PL080/PL081 PrimeCells

From: Linus Walleij
Date: Sun Jan 02 2011 - 15:33:39 EST

2010/12/31 Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx>:

> So, given all these questions (some of which can lead to deadlocks), and
> we're now at -rc8, I see no way that I can sanely (or safely) queue up
> the PL011 UART and PL180 MMCI DMA engine code for this coming merge
> window.  (Sorry Linus.)

Such is life, I am still very happy that you have been taking some
time to dive into this. I will try to work through the points raised
as far as I can...

As for the in-tree PL08x driver I'd say it's doing pretty well for
memcpy() so we could add platform data for that on supported
platforms, then for device transfers we need more elaborative

I will also try to get the Nomadik 8815 up to get some reference
HW for this combo that actually works, including device transfers on
MMCI etc.

Linus Walleij
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