Re: [PATCH] ASoC: tlv320aic31xx: Add MICBIAS off setting

[Mark Brown]

On Fri, Aug 31, 2018 at 01:05:07PM -0500, Andrew F. Davis wrote:
> Leaving microphone bias off is a valid setting and even used in the DT
> binding document example. Add this setting here and document the same.
> Although it may not make much sense to enable a microphone here without
> any bias, it is a valid setting that can be chosen by DT and may be
> needed for some boards.

If we really want to pay attention to something setting this up we'd
need to completely remove the widget - what the code is doing at the
minute is setting the voltage that the bias will go to when enabled,
there's still a widget for turning it on and off.  There's some chance
that this will break existing boards.

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