[alsa-devel] [PATCH v2] ASoC: simple-card: add support for aux devices

[Nikita Yushchenko]

>> Changes from v1:
>> - moved example usage from commit message to Documentation/, as
>>   suggested by Kuninori Morimoto,
>> - fixed typo in example usage.
> 
> Ah, one more property to the "simple" card. At what point in adding 
> properties is it not simple?

AFAIU, idea is to have a pure-device-tree-controlled audio device (i.e.
without dedicated machine driver).

Perhaps it should be just renamed at some point.

>> +- simple-audio-card,aux-devs		: List of phandles pointing to auxiliary devices, such
>> +					  as amplifiers, to be added to the sound card.
> 
> I think the property should be specific as to the type of device. What 
> if you have 2 amps? Maybe simple-card can't have 2 outputs. What if you 
> have a chain of devices and need to know the order of them?

snd_soc_card has unordered list of aux devices. Things you mention are
controlled are configured via routing.

Nikita