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

[Daniel Baluta]

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 at nxp.com>
Signed-off-by: Tom Zheng <haidong.zheng at nxp.com>
Signed-off-by: Daniel Baluta <daniel.baluta at nxp.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 at a4020000 {
 			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