[alsa-devel] [PATCH 03/10] ASoC: sun8i-codec: add support for speaker amp GPIO

[Chen-Yu Tsai]

On Sat, Oct 13, 2018 at 12:21 PM Vasily Khoruzhick <anarsoul at gmail.com> wrote:
>
> On Fri, Oct 12, 2018 at 9:00 PM Chen-Yu Tsai <wens at csie.org> wrote:
> >
> > On Sat, Oct 13, 2018 at 11:33 AM Vasily Khoruzhick <anarsoul at gmail.com> wrote:
> > >
> > > Some boards may have external amplifier for speaker that is controlled
> > > via GPIO, add support for it in similar way as it's done in sun4i-codec
> > >
> > > Signed-off-by: Vasily Khoruzhick <anarsoul at gmail.com>
> >
> > ASoC now has a generic amplifier driver. Please use that instead.
> >
> > See Documentation/devicetree/bindings/sound/simple-amplifier.txt
>
> Is there any example on how to use it? Documentation doesn't specify
> what DAPM routes I have to add to get it working.

(CC-ed author, Jerome)

The driver lists INL, INR, OUTL, OUTR as the in and out endpoints.
Not sure why they aren't in the bindings, but this driver is relatively
new.

ChenYu