[PATCH 2/3] arm64: dts: imx93-11x11-evk: Add PDM microphone sound card support

[Shengjiu Wang]

Add PDM micphone sound card support, configure the pinmux.

This sound card supports recording sound from PDM microphone
and convert the PDM format data to PCM data.

Signed-off-by: Shengjiu Wang <shengjiu.wang at nxp.com>
---
 .../boot/dts/freescale/imx93-11x11-evk.dts    | 41 +++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
index 7ed75fb287df..7ad65469625f 100644
--- a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
@@ -104,6 +104,20 @@ simple-audio-card,codec {
 			sound-dai = <&bt_sco_codec 1>;
 		};
 	};
+
+	sound-micfil {
+		compatible = "fsl,imx-audio-card";
+		model = "micfil-audio";
+
+		pri-dai-link {
+			link-name = "micfil hifi";
+			format = "i2s";
+
+			cpu {
+				sound-dai = <&micfil>;
+			};
+		};
+	};
 };
 
 &adc1 {
@@ -361,6 +375,17 @@ &lpuart5 {
 	status = "okay";
 };
 
+&micfil {
+	#sound-dai-cells = <0>;
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&pinctrl_pdm>;
+	pinctrl-1 = <&pinctrl_pdm_sleep>;
+	assigned-clocks = <&clk IMX93_CLK_PDM>;
+	assigned-clock-parents = <&clk IMX93_CLK_AUDIO_PLL>;
+	assigned-clock-rates = <49152000>;
+	status = "okay";
+};
+
 &mu1 {
 	status = "okay";
 };
@@ -564,6 +589,22 @@ MX93_PAD_CCM_CLKO2__GPIO3_IO27			0x31e
 		>;
 	};
 
+	pinctrl_pdm: pdmgrp {
+		fsl,pins = <
+			MX93_PAD_PDM_CLK__PDM_CLK			0x31e
+			MX93_PAD_PDM_BIT_STREAM0__PDM_BIT_STREAM00	0x31e
+			MX93_PAD_PDM_BIT_STREAM1__PDM_BIT_STREAM01	0x31e
+		>;
+	};
+
+	pinctrl_pdm_sleep: pdmgrpsleep {
+		fsl,pins = <
+			MX93_PAD_PDM_CLK__GPIO1_IO08			0x31e
+			MX93_PAD_PDM_BIT_STREAM0__GPIO1_IO09		0x31e
+			MX93_PAD_PDM_BIT_STREAM1__GPIO1_IO10		0x31e
+		>;
+	};
+
 	pinctrl_sai1: sai1grp {
 		fsl,pins = <
 			MX93_PAD_SAI1_TXC__SAI1_TX_BCLK			0x31e
-- 
2.34.1