[PATCH v4 4/8] ASoC: sun8i-codec-analog: Add amplifier event to fix first delay

[Mark Brown]

On Fri, Feb 10, 2017 at 02:08:54PM +0800, Chen-Yu Tsai wrote:

> One solution that might work is to mute the headphone output
> while the amp is being charged, by setting SUN8I_ADDA_HP_VOLC_HP_VOL
> to 0, and then restoring the value once it is charged. In other
> words, overriding the value for the duration of sun8i_headphone_amp_event.

This sounds like you want to make it an _AUTODISABLE control.
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