JACK_INSERT and HOLD underlying issues

[Allen Chang]

Hi Andy:
> Hi Allen -
>
> Well if we power down the amp as we should in suspend, we won't be able
> to wake from HOLD, that is the fact.  So we should remove the wake from
> the HOLD EINT[].  I agree it is kind of not so useful anyway to wake on
> that button since you need to hold the main unit to do something now it
> is woken up.
>
> But the larger issue is that maybe we have difficulty seeing a '1' even
> with micbias powered, due to the load from the Mic.  That means maybe we
> can't even use HOLD as a logical switch with micbias powered, or it is
> marginal to detect the '1'.
>
>
>   

When plugging the earphone, the HOLD voltage is still 3.2V.
Therefore, I think is OK

Best Wishes
         Allen Chang
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