Re: State of the MPC5200 PSC AC97 driver

[Robert Schwebel <r.schwebel@pengutronix.de>]

On Thu, Apr 10, 2008 at 12:44:43PM +0200, Marian Balakowicz wrote:
> Last year you have posted a MPC5200 PSC AC97 driver patch
> "[PATCH 9/9] sound: Add support for Freescale MPC5200 AC97 interface."
> with the following comment:
>
> > Not quite a clean driver, but it get things done (well, mostly).
> > Only included to be able to test functionalityi/usage of
> > the BestComm driver.
>
> There are various FIXMEs and commented out code here and there.
> Could you elaborate a bit on the overall state of the driver's
> functionality,
> which areas need improvement and attention?
>
> Seems that you mainly tested BestComm with this driver, what was the
> overall
> BestComm performance, any issues here? Did you use any specific test setup
> involving some dedicated application, etc.?
>
> Did anyone else tried it and/or has a updated version or can share
> experience?

Sidenote: last time we tried (2.6.23.1), the AC97 driver didn't work,
tested on the phyCORE-MPC5200B-tiny board. No sound, just a little bit
noise which can be muted with the mixer. And music finishes about 7
times as fast as it usually should. So we didn't manage to make it work
yet.

Robert
-- 
 Dipl.-Ing. Robert Schwebel | http://www.pengutronix.de
 Pengutronix - Linux Solutions for Science and Industry
   Handelsregister:  Amtsgericht Hildesheim, HRA 2686
     Hannoversche Str. 2, 31134 Hildesheim, Germany
   Phone: +49-5121-206917-0 |  Fax: +49-5121-206917-9