linux-kernel - Re: [PATCH v3] arm64: dts: imx93-11x11-frdm: Add MQS audio support

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Message-ID: <aWfcRxYBME4H0BQH@bywater>
Date: Wed, 14 Jan 2026 19:11:19 +0100
From: Francesco Valla <francesco@...la.it>
To: Daniel Baluta <daniel.baluta@....com>
Cc: shawnguo@...nel.org, robh@...nel.org, krzk+dt@...nel.org,
	conor+dt@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
	festevam@...il.com, devicetree@...r.kernel.org, imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Tom Zheng <haidong.zheng@....com>
Subject: Re: [PATCH v3] arm64: dts: imx93-11x11-frdm: Add MQS audio support

On Tue, Jan 13, 2026 at 09:50:02AM +0200, Daniel Baluta wrote:
> Enable Medium Quality Sound (MQS) output on the i.MX93 FRDM 11x11 board
> by adding sound card description and enabling sai1 and mqs1 dts nodes,
> together with necessary clocks and pinmux.
> 
> This supports audio playback via SAI1 DAI which is connected to the MQS1
> block.
> 
> Co-developed-by: Tom Zheng <haidong.zheng@....com>
> Signed-off-by: Tom Zheng <haidong.zheng@....com>
> Signed-off-by: Daniel Baluta <daniel.baluta@....com>
> ---
> Changes since v2:
> * Remove  "fsl,imx6sx-sdb-mqs" compatible from sound-mqs as it doesn't
>   make much sense to use it as per Fabio suggestion
> * Link to v2: https://lore.kernel.org/imx/20260112135612.465325-1-daniel.baluta@nxp.com/
> 
>  .../boot/dts/freescale/imx93-11x11-frdm.dts   | 35 +++++++++++++++++++
>  1 file changed, 35 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx93-11x11-frdm.dts b/arch/arm64/boot/dts/freescale/imx93-11x11-frdm.dts
> index 066c5139842b..5bb6ae0d154a 100644
> --- a/arch/arm64/boot/dts/freescale/imx93-11x11-frdm.dts
> +++ b/arch/arm64/boot/dts/freescale/imx93-11x11-frdm.dts
> @@ -81,6 +81,13 @@ vdevbuffer: vdevbuffer@...20000 {
>  			no-map;
>  		};
>  	};
> +
> +	sound-mqs {
> +		compatible = "fsl,imx-audio-mqs";
> +		model = "mqs-audio";
> +		audio-cpu = <&sai1>;
> +		audio-codec = <&mqs1>;
> +	};
>  };
>  
>  &adc1 {
> @@ -315,6 +322,27 @@ &lpuart1 { /* console */
>  	status = "okay";
>  };
>  
> +&mqs1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_mqs1>;
> +	clocks = <&clk IMX93_CLK_MQS1_GATE>;
> +	clock-names = "mclk";
> +	status = "okay";
> +};
> +
> +&sai1 {
> +	#sound-dai-cells = <0>;
> +	clocks = <&clk IMX93_CLK_SAI1_IPG>, <&clk IMX93_CLK_DUMMY>,
> +		 <&clk IMX93_CLK_SAI1_GATE>, <&clk IMX93_CLK_DUMMY>,
> +		 <&clk IMX93_CLK_DUMMY>, <&clk IMX93_CLK_AUDIO_PLL>;
> +	clock-names = "bus", "mclk0", "mclk1", "mclk2", "mclk3", "pll8k";
> +	assigned-clocks = <&clk IMX93_CLK_SAI1>;
> +	assigned-clock-parents = <&clk IMX93_CLK_AUDIO_PLL>;
> +	assigned-clock-rates = <24576000>;
> +	fsl,sai-mclk-direction-output;
> +	status = "okay";
> +};
> +
>  &usbotg1 {
>  	adp-disable;
>  	disable-over-current;
> @@ -479,6 +507,13 @@ MX93_PAD_GPIO_IO29__LPI2C3_SCL			0x40000b9e
>  		>;
>  	};
>  
> +	pinctrl_mqs1: mqs1grp {
> +		fsl,pins = <
> +			MX93_PAD_PDM_CLK__MQS1_LEFT		0x31e
> +			MX93_PAD_PDM_BIT_STREAM0__MQS1_RIGHT	0x31e
> +		>;
> +	};
> +
>  	pinctrl_pcal6524: pcal6524grp {
>  		fsl,pins = <
>  			MX93_PAD_CCM_CLKO2__GPIO3_IO27			0x31e
> -- 
> 2.45.2
> 
>

Tested-by: Francesco Valla <francesco@...la.it>


Regards,
Francesco