linux-kernel - Re: [PATCH 7/7] arm64: dts: allwinner: h616: Add SPDIF device node

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Date: Tue, 23 Jan 2024 00:43:15 +0000
From: Andre Przywara <andre.przywara@....com>
To: Chen-Yu Tsai <wens@...nel.org>
Cc: Rob Herring <robh+dt@...nel.org>, Krzysztof Kozlowski
 <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>,
 Jernej Skrabec <jernej.skrabec@...il.com>, Samuel Holland
 <samuel@...lland.org>, Liam Girdwood <lgirdwood@...il.com>, Mark Brown
 <broonie@...nel.org>, Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai
 <tiwai@...e.com>, Vinod Koul <vkoul@...nel.org>, Chen-Yu Tsai
 <wens@...e.org>, devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
 linux-sound@...r.kernel.org, dmaengine@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/7] arm64: dts: allwinner: h616: Add SPDIF device node

On Tue, 23 Jan 2024 01:05:18 +0800
Chen-Yu Tsai <wens@...nel.org> wrote:

Hi,

> From: Chen-Yu Tsai <wens@...e.org>
> 
> The H616 SoC has an SPDIF transmitter hardware block, which has the same
> layout as the one in the H6, minus the receiver side.
> 
> Add a device node for it, and a default pinmux.
>
> Signed-off-by: Chen-Yu Tsai <wens@...e.org>

Compared the details against the manual, the clock driver, and the
binding, they match:

Reviewed-by: Andre Przywara <andre.przywara@....com>

Cheers,
Andre

> ---
>  .../arm64/boot/dts/allwinner/sun50i-h616.dtsi | 20 +++++++++++++++++++
>  1 file changed, 20 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
> index a0268439f3be..fd4c080b8e62 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
> @@ -253,6 +253,11 @@ spi1_cs0_pin: spi1-cs0-pin {
>  				function = "spi1";
>  			};
>  
> +			spdif_tx_pin: spdif-tx-pin {
> +				pins = "PH4";
> +				function = "spdif";
> +			};
> +
>  			uart0_ph_pins: uart0-ph-pins {
>  				pins = "PH0", "PH1";
>  				function = "uart0";
> @@ -550,6 +555,21 @@ mdio0: mdio {
>  			};
>  		};
>  
> +		spdif: spdif@...3000 {
> +			compatible = "allwinner,sun50i-h616-spdif";
> +			reg = <0x05093000 0x400>;
> +			interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&ccu CLK_BUS_SPDIF>, <&ccu CLK_SPDIF>;
> +			clock-names = "apb", "spdif";
> +			resets = <&ccu RST_BUS_SPDIF>;
> +			dmas = <&dma 2>;
> +			dma-names = "tx";
> +			pinctrl-names = "default";
> +			pinctrl-0 = <&spdif_tx_pin>;
> +			#sound-dai-cells = <0>;
> +			status = "disabled";
> +		};
> +
>  		usbotg: usb@...0000 {
>  			compatible = "allwinner,sun50i-h616-musb",
>  				     "allwinner,sun8i-h3-musb";