On Thu, Aug 17, 2017 at 10:02:09AM +0200, srinivas.kandaga...@linaro.org wrote:

> +             /*
> +              * Special headset needs MICBIAS as 2.7V so wait for
> +              * 50 msec for the MICBIAS to reach 2.7 volts.
> +              */
> +             if (wcd->micbias_mv >= 2700)
> +                     msleep(50);

This doesn't sound like how ramping usually works?  Normally it'd be at
least somewhat proportional to voltage, a sudden cutoff like this seems
strange.  I'll apply but this looks like it needs fixing, please send an
incremental patch.

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