[alsa-devel] [RFC patch v3 3/4] ASoC: atmel-ssc-dai: register dai and pcm directly

Bo Shen voice.shen at atmel.com
Wed Nov 7 08:38:24 CET 2012

On 11/6/2012 19:39, Mark Brown wrote:
> On Tue, Nov 06, 2012 at 05:32:32PM +0800, Bo Shen wrote:
>> On 11/6/2012 16:48, Mark Brown wrote:
>>> On Tue, Nov 06, 2012 at 01:57:53PM +0800, Bo Shen wrote:
>>> No, this isn't converting things to device tree which presumably is the
>>> goal here and obviously just doing the rename doesn't accomplish an
>>> enormous amount.  What I said was that you should instantiate the ASoC
>>> adaption when the machine driver needs to use them.  You shouldn't even
>>> need a separate device for this.
>> Maybe this is not the best solution, but just abstract audio as a
>> separate device. The other's still keep as a ssc library.
> It's not abstracting things, that's the whole problem.  It's putting the
> internals of how the Linux audio stack is organised into the device
> tree.  The point is that the SSC should be a library to all users.

OK. I will keep the SSC as a library for all users.

>>> Please do look at other platforms with similar hardware and do something
>>> similar to them.
>> I take some reference (e.g: freescale, marvell, invidia soc, this
>> RFC implement is similar with them), but don't find the similar
>> hardware with us. Please help provide the information who's HW is
>> similar with us. Thanks.
> A *huge* range of SoCs have generic serial ports - off the top of my
> head this includes at least OMAP, PXA and Freescale.  The same issue
> also applies to DMA controllers which affects almost all SoCs.

Thanks for this information, I will try to implement the SSC framework 
like this. If it is finished, I will send out v4 patch series.

Thanks again.

Bo Shen

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