[PATCH 1/2] ASoC: tlv320aic3x: Convert mic bias to a supply widget

[Mark Brown]

On Wed, Jan 30, 2013 at 06:52:35PM +0530, Hebbar Gururaja wrote:

> Convert MicBias widgets to supply widget.

> On tlv320aic3x, Mic bias power on/off shares the same register bits
> with output mic bias voltage.  So, when power on mic bias, we need
> reclaim it to voltage value.

This should update machine drivers that use the CODEC too.

> +- ai3x-micbias-vg - MicBias Voltage required.
> +	1 - MICBIAS output is powered to 2.0V,
> +	2 - MICBIAS output is powered to 2.5V,
> +	3 - MICBIAS output is connected to AVDD,
> +	If this node is not mentioned or if the value is incorrect, then MicBias
> +	is powered down.

Would 2.0V not be a more sensible default (it is the lowest voltage so
is unlikely to cause hardware damage if it's wrong)?

Otherwise this looks good.
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