Re: [alsa-devel] About ALSA SoC cpu/codec asymmetry

On 03/10/2014 03:10 AM, Kuninori Morimoto wrote:

Hi Mark, Stephen, Lars

Now, ALSA SoC is using "component" style, and its image is like this.

ALSA SoC

• platform
• component (as CPU)
• codec
  • component

It is still not symmetry, and confusable. I guess this is understandable.

ALSA SoC

• platform
• cpu
  • component
• codec
  • component

If we add "cpu", it needs "cpu name", same as current "codec name" on soc_bind_dai_link(). I guess it can keep compatible if it allows "NULL" name on "cpu name" at this point. (but print warning ?)

There is already a cpu_name field for the DAI link struct and it is ignored when it is NULL. See http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/sound/so...

I have a patch that makes using cpu_name mandatory for new component drivers. And then we can slowly start to convert old platforms.

- Lars