[PATCH v1 2/2] ASoC: dmic: Add optional dmic selection

[Ajye Huang]

Hi Amadeusz,

Yes, the original version I tried the implementation on audio machine
driver, but one person gave me an idea for this dmic.c
Do you think it is appropriate on dmic.c?
 If it isn't, I will add kcontrol into audio machine driver.  thanks


On Fri, Oct 28, 2022 at 7:44 PM Amadeusz Sławiński
<amadeuszx.slawinski at linux.intel.com> wrote:
>
> On 10/28/2022 12:24 PM, Ajye Huang wrote:
> > Having two DMICs, a front DMIC and a rear DMIC,
> > but only host audio input AUX port0 is used for these two Dmics.
> > A "dmic_sel-gpios" property is used for a mixer control to switch
> > the dmic signal source between the Front and Rear Dmic.
> >
> > usage: amixer -c0 cset name='Dmic Mux' 'FrontMic'
> > usage: amixer -c0 cset name='Dmic Mux' 'RearMic'
> >
> > Refer to this one as an example,
> > commit 3cfbf07c6d27
> > ("ASoC: qcom: sc7180: Modify machine driver for 2mic")
> >
> > Signed-off-by: Ajye Huang <ajye_huang at compal.corp-partner.google.com>
> > ---
>
>
> I'm very suspicious of this patchset. As it is you add kcontrol which
> won't take effect on most platforms making use of DMIC. It feels to me
> that it is something you want to handle on machine driver side instead.
>