>-----Original Message-----
>From: Mike Frysinger [mailto:[email protected]]
>Sent: Wednesday, March 02, 2011 1:55 AM
>To: Zhang, Sonic
>Cc: [email protected];
>[email protected]
>Subject: Re: [Linux-kernel-commits] [9632] trunk/sound/soc:
>asoc: remove obsolete ac97 driver
>
>On Mon, Feb 28, 2011 at 21:39, Zhang, Sonic wrote:
>>-----Original Message-----
>>>On Mon, Feb 28, 2011 at 05:00,  <[email protected]> wrote:
>>>> Revision 9632 Author scott Date 2011-02-28 05:00:44 -0500 (Mon, 28
>>>> Feb 2011)
>>>>
>>>> Log Message
>>>>
>>>> asoc: remove obsolete ac97 driver
>>>>
>>>> Modified Paths
>>>>
>>>> trunk/sound/soc/blackfin/Kconfig
>>>> trunk/sound/soc/blackfin/Makefile
>>>> trunk/sound/soc/blackfin/bf5xx-sport.h
>>>> trunk/sound/soc/codecs/Kconfig
>>>> trunk/sound/soc/codecs/Makefile
>>>>
>>>> Removed Paths
>>>>
>>>> trunk/sound/soc/blackfin/bf5xx-ac97-pcm.c
>>>> trunk/sound/soc/blackfin/bf5xx-ac97-pcm.h
>>>> trunk/sound/soc/blackfin/bf5xx-ac97.c
>>>> trunk/sound/soc/blackfin/bf5xx-ac97.h
>>>> trunk/sound/soc/blackfin/bf5xx-ad1980.c
>>>> trunk/sound/soc/codecs/ad1980.c
>>>> trunk/sound/soc/codecs/ad1980.h
>>>
>>>two things ... this is the audio part on the bf548-ezkit, so without
>>>this driver, we cant demo audio on that board.  and that board is by
>>>far the best suited for easily testing audio with many other
>inputs at
>>>the same time.
>>
>> You can continue to demo on the bf548-ezkit under 2010R1 release.
>
>that doesnt really work for me.  if we're taking the position
>of "when a part goes EOL, ADI no longer supports it", then it
>seems to me that customers are going to pick other people who
>support the software stack longer than the life of the part.
>

We have already support ad1980 driver for 2 years after it is obsolete. Nothing 
can be supported for ever after it goes EOL.


>>>second, ac97 should be just a transport layer, so is there
>any reason
>>>people cant hook up other codecs via it ?
>>
>> We have already made the decision to stop supporting
>obsolette ad1980 and AC97 in kernel since 2009R1. After the
>ASOC is revised in 2.6.37, I don't think it worth the efforts
>to port the drivers and keep them in future release. If people
>want to hook other AC97 sound card (not from ADI), they are on
>their own.
>
>i'm pretty sure mainline updated the codec driver already for
>us.  it was just the transport layer that needed updating
>because of our incomplete SPORT reorganization.  the transport
>layer (SPORT) should be handled by us because it is specific
>to Blackfin parts.
>-mike
>

Because ADI obsoletes old AC97 codecs, real customer requirements are necessary 
for us to continue support the AC97 dai. Are there any customers now?


Sonic
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