linux-kernel - Re: [PATCH 5/5] arm64: dts: meson: u200: add onboard devices

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Date:   Mon, 11 Sep 2023 17:56:03 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Jerome Brunet <jbrunet@...libre.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Kevin Hilman <khilman@...libre.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     Christian Hewitt <christianshewitt@...il.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-amlogic@...ts.infradead.org
Subject: Re: [PATCH 5/5] arm64: dts: meson: u200: add onboard devices

On 11/09/2023 17:45, Jerome Brunet wrote:
> Add missing audio devices found on the u200 PCB. This includes
> * Lineout connected to the internal DAC
> * SPDIF input connected to a coaxial socket
> * TDM input decoders allowing output loopback
> * TDM A and B output encoders and interfaces
> 
> TDM A and B link format is set by the related external codec.
> Internal audio DAC can hook to any TDM output.
> 
> This change does not include support necessary the optional the speaker and
> PDM Mic headers
> 
> Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
> ---
>  .../boot/dts/amlogic/meson-g12a-u200.dts      | 228 +++++++++++++++++-
>  1 file changed, 218 insertions(+), 10 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a-u200.dts b/arch/arm64/boot/dts/amlogic/meson-g12a-u200.dts
> index da66e2e1dffb..9abe37b5b227 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-g12a-u200.dts
> +++ b/arch/arm64/boot/dts/amlogic/meson-g12a-u200.dts
> @@ -9,6 +9,7 @@
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/gpio/meson-g12a-gpio.h>
>  #include <dt-bindings/sound/meson-g12a-tohdmitx.h>
> +#include <dt-bindings/sound/meson-g12a-toacodec.h>
>  
>  / {
>  	compatible = "amlogic,u200", "amlogic,g12a";
> @@ -19,6 +20,22 @@ aliases {
>  		ethernet0 = &ethmac;
>  	};
>  
> +	dioo2133: audio-amplifier-0 {
> +		#sound-dai-cells = <0>;
> +		compatible = "simple-audio-amplifier";

compatible is by convention first property. Do you have different style
in Amlogic/Meson?

> +		status = "okay";

status is by default.


Best regards,
Krzysztof