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

From: Maxime Ripard
Date: Tue Apr 28 2020 - 04:00:36 EST


On Sun, Apr 26, 2020 at 02:04:39PM +0200, Clément Péron wrote:
> From: Marcus Cooper <codekipper@xxxxxxxxx>
>
> Add a simple-soundcard to link audio between HDMI and I2S.
>
> Signed-off-by: Jernej Skrabec <jernej.skrabec@xxxxxxxx>
> Signed-off-by: Marcus Cooper <codekipper@xxxxxxxxx>
> Signed-off-by: Clément Péron <peron.clem@xxxxxxxxx>
> ---
> 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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