arm64: dts: librem5-devkit: add the sgtl5000 i2c audio codec

Describe the sgtl5000 of the librem 5 devkit in devicetree.
Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts

@@ -148,6 +148,34 @@ reg_usdhc2_vmmc: regulator-usdhc2-vmmc {
 		regulator-always-on;
 	};
 
+	sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,name = "sgtl5000";
+		simple-audio-card,format = "i2s";
+		simple-audio-card,widgets =
+			"Microphone", "Microphone Jack",
+			"Headphone", "Headphone Jack",
+			"Speaker", "Speaker Ext",
+			"Line", "Line In Jack";
+		simple-audio-card,routing =
+			"MIC_IN", "Microphone Jack",
+			"Microphone Jack", "Mic Bias",
+			"LINE_IN", "Line In Jack",
+			"Headphone Jack", "HP_OUT",
+			"Speaker Ext", "LINE_OUT";
+
+		simple-audio-card,cpu {
+			sound-dai = <&sai2>;
+		};
+
+		simple-audio-card,codec {
+			sound-dai = <&sgtl5000>;
+			clocks = <&clk IMX8MQ_CLK_SAI2_ROOT>;
+			frame-master;
+			bitclock-master;
+		};
+	};
+
 	vibrator {
 		compatible = "gpio-vibrator";
 		pinctrl-names = "default";
@@ -426,6 +454,19 @@ magnetometer@1e	{
 		vddio-supply = <&reg_3v3_p>;
 	};
 
+	sgtl5000: audio-codec@a {
+		compatible = "fsl,sgtl5000";
+		clocks = <&clk IMX8MQ_CLK_SAI2_ROOT>;
+		assigned-clocks = <&clk IMX8MQ_CLK_SAI2>;
+		assigned-clock-parents = <&clk IMX8MQ_AUDIO_PLL1_OUT>;
+		assigned-clock-rates = <24576000>;
+		#sound-dai-cells = <0>;
+		reg = <0x0a>;
+		VDDD-supply = <&reg_1v8_p>;
+		VDDIO-supply = <&reg_3v3_p>;
+		VDDA-supply = <&reg_3v3_p>;
+	};
+
 	touchscreen@5d {
 		compatible = "goodix,gt5688";
 		reg = <0x5d>;
@@ -567,6 +608,16 @@ MX8MQ_IOMUXC_SAI3_RXC_GPIO4_IO29	0x80  /* RTC intr */
 		>;
 	};
 
+	pinctrl_sai2: sai2grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_SAI2_TXFS_SAI2_TX_SYNC	0xd6
+			MX8MQ_IOMUXC_SAI2_TXC_SAI2_TX_BCLK	0xd6
+			MX8MQ_IOMUXC_SAI2_TXD0_SAI2_TX_DATA0	0xd6
+			MX8MQ_IOMUXC_SAI2_RXD0_SAI2_RX_DATA0	0xd6
+			MX8MQ_IOMUXC_SAI2_MCLK_SAI2_MCLK	0xd6
+		>;
+	};
+
 	pinctrl_typec: typecgrp {
 		fsl,pins = <
 			MX8MQ_IOMUXC_NAND_DATA06_GPIO3_IO12		0x16
@@ -742,6 +793,15 @@ &snvs_pwrkey {
 	status = "okay";
 };
 
+&sai2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sai2>;
+	assigned-clocks = <&clk IMX8MQ_CLK_SAI2>;
+	assigned-clock-parents = <&clk IMX8MQ_AUDIO_PLL1_OUT>;
+	assigned-clock-rates = <24576000>;
+	status = "okay";
+};
+
 &uart1 { /* console */
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart1>;