Re: [PATCH v4 20/22] ARM: tegra: Add HDMI audio graph to Tegra20 device-tree

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On Sat, Dec 04, 2021 at 05:37:23PM +0300, Dmitry Osipenko wrote:
> Add HDMI audio graph to Tegra20 device-tree to enable HDMI audio on
> Tegra20 devices.
> 
> Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>
> ---
>  arch/arm/boot/dts/tegra20.dtsi | 22 +++++++++++++++++++++-
>  1 file changed, 21 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
> index 72cbe32d0c1d..dde228bcbbff 100644
> --- a/arch/arm/boot/dts/tegra20.dtsi
> +++ b/arch/arm/boot/dts/tegra20.dtsi
> @@ -186,7 +186,7 @@ rgb {
>  			};
>  		};
>  
> -		hdmi@54280000 {
> +		tegra_hdmi: hdmi@54280000 {
>  			compatible = "nvidia,tegra20-hdmi";
>  			reg = <0x54280000 0x00040000>;
>  			interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
> @@ -1063,4 +1063,24 @@ pmu {
>  		interrupt-affinity = <&{/cpus/cpu@0}>,
>  				     <&{/cpus/cpu@1}>;
>  	};
> +
> +	sound-hdmi {
> +		compatible = "simple-audio-card";
> +		simple-audio-card,name = "NVIDIA Tegra20 HDMI";
> +
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		simple-audio-card,dai-link@0 {
> +			reg = <0>;
> +
> +			cpu {
> +				sound-dai = <&tegra_spdif>;
> +			};
> +
> +			codec {
> +				sound-dai = <&tegra_hdmi>;
> +			};
> +		};
> +	};

Should this be status = "disabled" and then only enabled for platforms
that actually enable HDMI?

Thierry

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