linux-kernel - Re: [PATCH 2/7] arm: dts: sunxi: h3/h5: Add HDMI audio

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Message-ID: <20200428075816.p46abv7rrnlg6my6@gilmour.lan>
Date:   Tue, 28 Apr 2020 09:58:16 +0200
From:   Maxime Ripard <maxime@...no.tech>
To:     Clément Péron <peron.clem@...il.com>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org,
        linux-sunxi <linux-sunxi@...glegroups.com>,
        Marcus Cooper <codekipper@...il.com>,
        Jernej Skrabec <jernej.skrabec@...l.net>
Subject: Re: [PATCH 2/7] arm: dts: sunxi: h3/h5: Add HDMI audio

Hi,

On Sun, Apr 26, 2020 at 02:04:37PM +0200, Clément Péron wrote:
> From: Marcus Cooper <codekipper@...il.com>
> 
> Add a simple-soundcard to link audio between HDMI and I2S.
> 
> Signed-off-by: Jernej Skrabec <jernej.skrabec@...l.net>
> Signed-off-by: Marcus Cooper <codekipper@...il.com>
> Signed-off-by: Clément Péron <peron.clem@...il.com>
> ---
>  arch/arm/boot/dts/sunxi-h3-h5.dtsi | 21 +++++++++++++++++++++
>  1 file changed, 21 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> index 9be13378d4df..3a4262294950 100644
> --- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> +++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> @@ -105,6 +105,25 @@
>  		status = "disabled";
>  	};
>  
> +	hdmi_sound: hdmi-sound {
> +		compatible = "simple-audio-card";
> +		simple-audio-card,format = "i2s";
> +		simple-audio-card,name = "allwinner,hdmi";
> +		simple-audio-card,mclk-fs = <128>;
> +		simple-audio-card,frame-inversion;
> +		status = "disabled";
> +
> +		simple-audio-card,codec {
> +			sound-dai = <&hdmi>;
> +		};
> +
> +		simple-audio-card,cpu {
> +			sound-dai = <&i2s2>;
> +			dai-tdm-slot-num = <2>;
> +			dai-tdm-slot-width = <32>;
> +		};
> +	};
> +
>  	soc {
>  		compatible = "simple-bus";
>  		#address-cells = <1>;
> @@ -672,6 +691,7 @@
>  			dmas = <&dma 27>;
>  			resets = <&ccu RST_BUS_I2S2>;
>  			dma-names = "tx";
> +			allwinner,playback-channels = <8>;

This property doesn't exist in the binding

Maxime

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