Re: [PATCH 4/7] arm64: dts: allwinner: a64: Add HDMI audio

[Maxime Ripard <maxime@cerno.tech>]

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On Sun, Apr 26, 2020 at 02:04:39PM +0200, Clément Péron wrote:
> From: Marcus Cooper <codekipper@gmail.com>
> 
> Add a simple-soundcard to link audio between HDMI and I2S.
> 
> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
> Signed-off-by: Marcus Cooper <codekipper@gmail.com>
> Signed-off-by: Clément Péron <peron.clem@gmail.com>
> ---
>  arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 21 +++++++++++++++++++
>  1 file changed, 21 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> index e56e1e3d4b73..08ab6b5e72a5 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> @@ -102,6 +102,25 @@
>  		status = "disabled";
>  	};
>  
> +	hdmi_sound: hdmi-sound {
> +		compatible = "simple-audio-card";
> +		simple-audio-card,format = "i2s";
> +		simple-audio-card,name = "allwinner,hdmi";

I'm not sure what the usual card name should be like though. I would assume that
this should be something specific enough so that you're able to differentiate
between boards / SoC so that the userspace can choose a different configuration
based on it?

If so, it's really too generic.

Maxime

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