Re: [PATCH 1/2] arm64: dts: rockchip: rk356x: Add HDMI audio nodes

[Michael Riesch]

Hello Nicolas,

On 11/25/21 11:08 AM, Nicolas Frattaroli wrote:
> This adds the i2s0 node and an hdmi-sound sound device to the
> rk356x device tree. On the rk356[68], the i2s0 controller is
> connected to HDMI audio.
>
> Signed-off-by: Nicolas Frattaroli <frattaroli.nicolas@xxxxxxxxx>
> ---
>   arch/arm64/boot/dts/rockchip/rk356x.dtsi | 32 ++++++++++++++++++++++++
>   1 file changed, 32 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
> index 3c09cf6d4c37..ad4053402eef 100644
> --- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi
> +++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
> @@ -614,6 +614,21 @@ hdmi_in_vp2: endpoint@2 {
>   		};
>   	};
>   
> +	hdmi_sound: hdmi-sound {
> +		compatible = "simple-audio-card";
> +		simple-audio-card,format = "i2s";
> +		simple-audio-card,mclk-fs = <256>;
> +		simple-audio-card,name = "hdmi-sound";
> +		status = "disabled";
> +
> +		simple-audio-card,cpu {
> +			sound-dai = <&i2s0_8ch>;
> +		};
> +		simple-audio-card,codec {
> +			sound-dai = <&hdmi>;
> +		};
> +	};
> +
>   	qos_gpu: qos@fe128000 {
>   		compatible = "rockchip,rk3568-qos", "syscon";
>   		reg = <0x0 0xfe128000 0x0 0x20>;
> @@ -789,6 +804,23 @@ spdif: spdif@fe460000 {
>   		status = "disabled";
>   	};
>   
> +	i2s0_8ch: i2s@fe400000 {
> +		compatible = "rockchip,rk3568-i2s-tdm";
> +		reg = <0x0 0xfe400000 0x0 0x1000>;
> +		interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;
> +		assigned-clocks = <&cru CLK_I2S0_8CH_TX_SRC>, <&cru CLK_I2S0_8CH_RX_SRC>;
> +		assigned-clock-rates = <1188000000>, <1188000000>;
> +		clocks = <&cru MCLK_I2S0_8CH_TX>, <&cru MCLK_I2S0_8CH_RX>, <&cru HCLK_I2S0_8CH>;
> +		clock-names = "mclk_tx", "mclk_rx", "hclk";
> +		dmas = <&dmac1 0>;
> +		dma-names = "tx";
> +		resets = <&cru SRST_M_I2S0_8CH_TX>, <&cru SRST_M_I2S0_8CH_RX>;
> +		reset-names = "tx-m", "rx-m";
> +		rockchip,grf = <&grf>;
> +		#sound-dai-cells = <0>;
> +		status = "disabled";
> +	};
> +
>   	i2s1_8ch: i2s@fe410000 {
>   		compatible = "rockchip,rk3568-i2s-tdm";
>   		reg = <0x0 0xfe410000 0x0 0x1000>;

on a RK3568 EVB1 with corresponding dts changes:

Tested-by: Michael Riesch <michael.riesch@xxxxxxxxxxxxxx>

Thanks and best regards,
Michael