[alsa-devel] i.MX SDMA support

Sascha Hauer s.hauer at pengutronix.de
Mon Aug 9 14:19:56 CEST 2010

On Mon, Aug 09, 2010 at 11:47:03AM +0100, Liam Girdwood wrote:
> On Mon, 2010-08-09 at 11:11 +0200, Sascha Hauer wrote:
> > Hi,
> > 
> > I just posted a series adding SDMA support for i.MX to the Arm Linux
> > Kernel mailing list.
> I noticed. It's good to see SDMA support going upstream :) 
> >  It also contains a patch for adding SDMA support
> > to the i.MX SSI units. I haven't cc'd alsa-devel because most of the
> > stuff is not sound related. I know at least Mark and Liam are
> > interested, so I leave a pointer here. The sound stuff needs to be
> > synchronized with the other patches, so it's probably best if all
> > patches go via my tree.
> Yeah, that should be OK. However, we do have a ASoC core multi-component
> update merging later this week. This may conflict with some of your SDMA
> updates, although the multi-component support only really affects ASoC
> component probe() and remove() as every component is a regular Linux
> device now (with platform data, etc) and private data access.

That won't be a problem. The SDMA code will wait until the next merge
window anyway, I will rebase it after the multi-compoment merge if

> The multi-component branch is here:-
> git://git.kernel.org/pub/scm/linux/kernel/git/lrg/asoc-2.6.git topic/multi-component
> I did have to make some changes to i.MX ASoC in order to de-couple some
> of the components in order for them to be distinct kernel devices. Any
> chance you could give this a test with the new SDMA code ?

Yes, will do later today or tomorrow. In fact, I wanted to do earlier, but
didn't find the time.


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