linux-kernel - Re: [PATCH 2/3] arm64: dts: meson-axg: s400: add dmic codec

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Date:   Sat, 1 Sep 2018 18:24:38 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     Jerome Brunet <jbrunet@...libre.com>
Cc:     Kevin Hilman <khilman@...libre.com>,
        Carlo Caione <carlo@...one.org>,
        linux-amlogic@...ts.infradead.org,
        linux-kernel <linux-kernel@...r.kernel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 2/3] arm64: dts: meson-axg: s400: add dmic codec

Hi Jerome,

On Fri, Aug 31, 2018 at 12:02 PM, Jerome Brunet <jbrunet@...libre.com> wrote:
> There are 7 digital mics on the MIC daughter board attached
> to the s400 board, so add the digital microphone codec to
> its DTS
>
> Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
> ---
>  arch/arm64/boot/dts/amlogic/meson-axg-s400.dts | 9 +++++++++
>  1 file changed, 9 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
> index ff64c429d432..f3e16cbbc61e 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
> +++ b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
> @@ -86,6 +86,15 @@
>                 sound-name-prefix = "DIT";
>         };
>
> +       dmics: audio-codec@3 {

You pass @3 without a corresponding reg = <3>, which causes dtc
warnings with W=1.