[alsa-devel] [PATCH 4/4] ASoC: Flag the i.MX SSI driver as using symmetric rates

[Sascha Hauer]

On Mon, Jan 11, 2010 at 04:25:08PM +0000, Mark Brown wrote:
> On Mon, Jan 11, 2010 at 09:51:22AM -0600, Timur Tabi wrote:
> 
> > I think the default should be synchronous unless asynchronous support
> > is specified.
> 
> I tend to agree for the i.MX hardware - for the ones I've looked at each
> external SSI port is four wire so you need to hook up two to achieve a
> six wire configuration that can do asymmetry so a direct hookup between
> the external port and the SSI controller seems fairly natural.  It's
> also the situation for all the default hookups the silicon provides.

As long as I can overwrite this flag in the board support I'm fine with
it. On our MC13783 based boards we have two external SSI channels (one
for record and one for playback). I merge them together to one six wire
SSI port using the AUDMUX since the imx-ssi driver currently can handle
only one SSI unit in FIQ mode.

Sascha

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |