[alsa-devel] [RFC 05/15] ASoC: rt5677: Auto enable/disable DSP for hotwording

[Mark Brown]

On Wed, Sep 11, 2019 at 01:22:20PM -0700, Curtis Malainey wrote:

> The source of the switch is commit af48f1d08a547 ("ASoC: rt5677:
> Support DSP function for VAD application") and does not explain the
> original intent of the switch. I believe the original intent of this
> commit is to keep the switch in sync with the VAD state. I do not
> believe we use the switch ourselves.

Well, I would assume that the control is used to allow users to
enable and disable the VAD functionality at runtime.  As with the
routing if it's been exposed to users we should continue to let
them control it.
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