linux-kernel - Re: [PATCH] arm64: dts: rockchip: add i2s and spdif endpoint of rk3328

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Date:   Mon, 10 Sep 2018 15:57:31 +0200
From:   Heiko Stuebner <heiko@...ech.de>
To:     Katsuhiro Suzuki <katsuhiro@...suster.net>
Cc:     linux-rockchip@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: rockchip: add i2s and spdif endpoint of rk3328

Hi,

Am Donnerstag, 6. September 2018, 18:39:56 CEST schrieb Katsuhiro Suzuki:
> This patch adds port and endpoint of i2s and spdif nodes for rk3328.
> Because to use modern sound card interface such as audio-graph-card.
> 
> Signed-off-by: Katsuhiro Suzuki <katsuhiro@...suster.net>
> ---
>  arch/arm64/boot/dts/rockchip/rk3328.dtsi | 24 ++++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
> index d3ef6566325e..41f0a20b73ed 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
> +++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
> @@ -179,7 +179,13 @@
>  		clock-names = "i2s_clk", "i2s_hclk";
>  		dmas = <&dmac 11>, <&dmac 12>;
>  		dma-names = "tx", "rx";
> +		#sound-dai-cells = <0>;
>  		status = "disabled";
> +
> +		i2s0_p0: port@0 {

there is only one port per device, so this should probably be
	i2s0_p0: port {
without the address. Same for all others.
The of-graph framework should work just fine then as well.

Heiko