linux-kernel - Re: [PATCH 4/4] ASoC: wm8904: add DMIC support

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Message-ID: <YiYyC1MVd+oCMU4x@sirena.org.uk>
Date:   Mon, 7 Mar 2022 16:25:47 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Alifer Moraes <alifer.m@...iscite.com>
Cc:     linux-kernel@...r.kernel.org, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, eran.m@...iscite.com,
        festevam@...il.com, lgirdwood@...il.com,
        linuxppc-dev@...ts.ozlabs.org, nicoleotsuka@...il.com,
        patches@...nsource.cirrus.com, perex@...ex.cz,
        pierluigi.p@...iscite.com, robh+dt@...nel.org,
        shengjiu.wang@...il.com, tiwai@...e.com, Xiubo.Lee@...il.com
Subject: Re: [PATCH 4/4] ASoC: wm8904: add DMIC support

On Mon, Mar 07, 2022 at 11:10:41AM -0300, Alifer Moraes wrote:

> +static const char *cin_text[] = {
> +	"ADC", "DMIC"
> +};
> +
> +static SOC_ENUM_SINGLE_DECL(cin_enum,
> +			    WM8904_DIGITAL_MICROPHONE_0, 12, cin_text);

Why would this be runtime selectable?  I'd expect the decision to use
an analogue or digital microphone to be made in the hardware design.

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