[alsa-devel] [PATCH 5/8] ASoC: sun50i-codec-analog: Enable DAPM for headphone switch

[Chen-Yu Tsai]

On Mon, Feb 17, 2020 at 10:18 AM Samuel Holland <samuel at sholland.org> wrote:
>
> By including the headphone mute switch to the DAPM graph, both the
> headphone amplifier and the Mixer/DAC inputs can be powered off when
> the headphones are muted.
>
> The mute switch is between the source selection and the amplifier,
> as per the diagram in the SoC manual.
>
> Signed-off-by: Samuel Holland <samuel at sholland.org>

Reviewed-by: Chen-Yu Tsai <wens at csie.org>

BTW, have you also considered tying in the headphone volume control?
It also has a mute setting.

ChenYu