linux-kernel - RE: [PATCH 06/13] DMAENGINE: driver for the ARM PL080/PL081 PrimeCells

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Date:	Tue, 15 Jun 2010 22:55:07 +0200
From:	Linus WALLEIJ <linus.walleij@...ricsson.com>
To:	Jassi Brar <jassisinghbrar@...il.com>,
	Kukjin Kim <kgene.kim@...sung.com>
Cc:	Dan Williams <dan.j.williams@...el.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"yuanyabin1978@...a.com" <yuanyabin1978@...a.com>,
	Viresh KUMAR <viresh.kumar@...com>,
	Alessandro Rubini <rubini@...pv.it>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ben Dooks <ben-linux@...ff.org>,
	Peter Pearse <peter.pearse@....com>
Subject: RE: [PATCH 06/13] DMAENGINE: driver for the ARM PL080/PL081
 	PrimeCells

[Jassi]
> [Kukjin]
> >> It has been converted to use the header from the Samsung PL080
> >> derivate instead of its own defintions, and can potentially support
> >> several controllers in the same system.
> > Looks good, but please give me some time to test on the
> board(SMDK6410).
> > If any problem, let you know. Of course no problem, will ack.
> Samsung doesn't use the DMA API, so this driver is unlikely to work.

Yeah that was never the intention, the Samsung derivate has one extra
Register and other funny stuff.

I was more hoping on breaking out a subset in the same elegant way
with a generic part and a separate DMAengine as was done with the
PL330... But I need to get it fully working first.

Atleast I used the same include file.

But I have functional UART DMA on the RealView PB11MPCore now!

Yours,
Linus Walleij