[ACTIVITY] (Shawn Guo) 2011-07-11 - 2011-07-15

[Shawn Guo]

On Mon, Jul 18, 2011 at 07:39:51PM +0200, Wolfram Sang wrote:
> Hi Shawn,
> 
> > === Device Tree ===
> >  * Tested audio on imx51 babbage board with a full dt kernel, which
> >    means I got i2c, sgtl5000 codec, mc13892 regulator, ssi and sdma
> >    working on device tree.
> 
> Did you get the sgtl5000 to work out of the box? I'd think the cache handling

No.  I started from a fixed version.  It's one of the open issues
I meant in my report.  It's great to see you start submitting to
shoot it.  I will give it a test today.

For record, besides the above (solved now :), we have to address
a number of issues to get the device tree audio ready for submitting.

 * The dynamic device id in device tree makes the device matching
   using name in ASoC core even harder[1].

 * The regulator binding for device tree is still missing.  There is
   a post [2] from Zhuang Haojian.  But it's pretty rough and still
   needs some work.

 * There is an argument between merging imx-ssi into fsl-ssi (ssi
   driver on powerpc) and simply dding dt support for imx-ssi [3].

 * We still have not reached an agreement on how to bind dma request
   line (not the physical channel) in device tree [4].

[1] http://thread.gmane.org/gmane.linux.alsa.devel/87086/focus=87151
[2] http://thread.gmane.org/gmane.linux.ports.arm.kernel/124322/focus=124486
[3] http://lists.ozlabs.org/pipermail/devicetree-discuss/2011-July/006651.html
[4] http://lists.ozlabs.org/pipermail/devicetree-discuss/2011-July/006647.html

Regards,
Shawn

> is really broken [1]...
> 
> Regards,
> 
>    Wolfram
> 
> [1] http://mailman.alsa-project.org/pipermail/alsa-devel/2011-July/041974.html
> 
> -- 
> Pengutronix e.K.                           | Wolfram Sang                |
> Industrial Linux Solutions                 | http://www.pengutronix.de/  |