linux-kernel - Re: [PATCH 10/14] arm64: dts: meson-axg: add linein codec

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Date:   Wed, 25 Jul 2018 21:18:27 +0200
From:   Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To:     jbrunet@...libre.com
Cc:     khilman@...libre.com, carlo@...one.org, devicetree@...r.kernel.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 10/14] arm64: dts: meson-axg: add linein codec

Hi Jerome,

On Tue, Jul 24, 2018 at 3:09 PM Jerome Brunet <jbrunet@...libre.com> wrote:
>
> Add the es7241 analog to digital converter which is fed by the
> lienin jack of the s400
>
> Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
> ---
>  arch/arm64/boot/dts/amlogic/meson-axg-s400.dts | 10 ++++++++++
>  1 file changed, 10 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
> index 7489b88f27d7..fb101a1c6660 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
> +++ b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
> @@ -178,6 +178,16 @@
>                         gpios = <&gpio_speaker 2 0>;
>                 };
>         };
> +
> +       linein: audio-codec@0 {
there is a unit-address but no reg property - I am wondering if this is allowed?
for the regulators we're using regulator-<unique-name> instead of
regulator@<unique number>

(this applies to other patches in this series as well)

> +               #sound-dai-cells = <0>;
> +               compatible = "everest,es7241";
> +               VDDA-supply = <&vcc_3v3>;
> +               VDDP-supply = <&vcc_3v3>;
> +               VDDD-supply = <&vcc_3v3>;
> +               status = "okay";
> +               sound-name-prefix = "Linein";
SPDIF output uses capital letters "SPDIFOUT"
I am not familiar with the sound subsystem (thus I'm not sure where
this shows up) so I am wondering if the naming should be consistent?


Regards
Martin