linux-kernel - RE: [PATCH v2 3/3] arm64: dts: imx8mp-evk: Add audio XCVR sound card

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Date: Fri, 28 Jun 2024 01:13:39 +0000
From: Peng Fan <peng.fan@....com>
To: "S.J. Wang" <shengjiu.wang@....com>, "lgirdwood@...il.com"
	<lgirdwood@...il.com>, "broonie@...nel.org" <broonie@...nel.org>,
	"robh@...nel.org" <robh@...nel.org>, "krzk+dt@...nel.org"
	<krzk+dt@...nel.org>, "conor+dt@...nel.org" <conor+dt@...nel.org>,
	"shengjiu.wang@...il.com" <shengjiu.wang@...il.com>,
	"linux-sound@...r.kernel.org" <linux-sound@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"shawnguo@...nel.org" <shawnguo@...nel.org>, "s.hauer@...gutronix.de"
	<s.hauer@...gutronix.de>, "kernel@...gutronix.de" <kernel@...gutronix.de>,
	"festevam@...il.com" <festevam@...il.com>, "imx@...ts.linux.dev"
	<imx@...ts.linux.dev>, "linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>
Subject: RE: [PATCH v2 3/3] arm64: dts: imx8mp-evk: Add audio XCVR sound card

> Subject: [PATCH v2 3/3] arm64: dts: imx8mp-evk: Add audio XCVR
> sound card
> 
> Add audio XCVR sound card, which supports SPDIF TX & RX, eARC RX,
> ARC RX functions.
> 
> HDMI_HPD is shared with the HDMI module so use pinctrl_hog.
> 
> Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
> ---
>  arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 27
> ++++++++++++++++++++
>  1 file changed, 27 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> index c2c708c492c0..a64e8a6c830d 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> @@ -209,6 +209,19 @@ cpu {
>  		};
>  	};
> 
> +	sound-xcvr {
> +		compatible = "fsl,imx-audio-card";
> +		model = "imx-audio-xcvr";
> +
> +		pri-dai-link {
> +			link-name = "XCVR PCM";
> +
> +			cpu {
> +				sound-dai = <&xcvr>;
> +			};
> +		};
> +	};
> +
>  	reserved-memory {
>  		#address-cells = <2>;
>  		#size-cells = <2>;
> @@ -748,7 +761,15 @@ &wdog1 {
>  	status = "okay";
>  };
> 
> +&xcvr {
> +	#sound-dai-cells = <0>;
> +	status = "okay";
> +};
> +
>  &iomuxc {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_hog>;

Could this be put under xcvr node?

Regards,
Peng.
> +
>  	pinctrl_audio_pwr_reg: audiopwrreggrp {
>  		fsl,pins = <
>  			MX8MP_IOMUXC_SAI3_RXC__GPIO4_IO29
> 		0xd6
> @@ -838,6 +859,12 @@
> MX8MP_IOMUXC_NAND_READY_B__GPIO3_IO16	0x140
>  		>;
>  	};
> 
> +	pinctrl_hog: hoggrp {
> +		fsl,pins = <
> +
> 	MX8MP_IOMUXC_HDMI_HPD__HDMIMIX_HDMI_HPD
> 	0x40000010
> +		>;
> +	};
> +
>  	pinctrl_i2c1: i2c1grp {
>  		fsl,pins = <
>  			MX8MP_IOMUXC_I2C1_SCL__I2C1_SCL
> 	0x400001c2
> --
> 2.34.1
>