linux-kernel - Re: [PATCH] arm64: dts: rockchip: add SPDIF audio to Beelink A1

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Message-ID: <66ae20b3-3316-4ec2-9c51-8414c053dc32@arm.com>
Date: Wed, 3 Dec 2025 16:21:25 +0000
From: Robin Murphy <robin.murphy@....com>
To: Christian Hewitt <christianshewitt@...il.com>,
 Rob Herring <robh+dt@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>,
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc: Alex Bee <knaerzche@...il.com>
Subject: Re: [PATCH] arm64: dts: rockchip: add SPDIF audio to Beelink A1

[ Just noticed this... ]

On 2025-08-28 5:43 pm, Christian Hewitt wrote:
> From: Alex Bee <knaerzche@...il.com>
> 
> Add the required nodes to enable SPDIF audio output on
> the Beelink A1 set-top-box.

But the A1 doesn't have S/PDIF? Only HDMI plus a 3.5mm jack connected to 
the analog audio codec (and possibly the composite TV out) :/

Thanks,
Robin.

> Signed-off-by: Alex Bee <knaerzche@...il.com>
> Signed-off-by: Christian Hewitt <christianshewitt@...il.com>
> ---
>   arch/arm64/boot/dts/rockchip/rk3328-a1.dts | 23 ++++++++++++++++++++++
>   1 file changed, 23 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3328-a1.dts b/arch/arm64/boot/dts/rockchip/rk3328-a1.dts
> index f7c4578865c5..b276a29bdd85 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3328-a1.dts
> +++ b/arch/arm64/boot/dts/rockchip/rk3328-a1.dts
> @@ -58,6 +58,24 @@ ir-receiver {
>   		gpios = <&gpio2 RK_PA2 GPIO_ACTIVE_LOW>;
>   		linux,rc-map-name = "rc-beelink-gs1";
>   	};
> +
> +	spdif_sound: spdif-sound {
> +		compatible = "simple-audio-card";
> +		simple-audio-card,name = "SPDIF";
> +
> +		simple-audio-card,cpu {
> +			sound-dai = <&spdif>;
> +		};
> +
> +		simple-audio-card,codec {
> +			sound-dai = <&spdif_dit>;
> +		};
> +	};
> +
> +	spdif_dit: spdif-dit {
> +		compatible = "linux,spdif-dit";
> +		#sound-dai-cells = <0>;
> +	};
>   };
>   
>   &analog_sound {
> @@ -325,6 +343,11 @@ &sdmmc {
>   	status = "okay";
>   };
>   
> +&spdif {
> +	pinctrl-0 = <&spdifm0_tx>;
> +	status = "okay";
> +};
> +
>   &tsadc {
>   	rockchip,hw-tshut-mode = <0>;
>   	rockchip,hw-tshut-polarity = <0>;