boards: frdm_mcxn236: Enable da7212 on frdm_mcxn236

Enable da7212 on frdm_mcxn236

Signed-off-by: Zhaoxiang Jin <[email protected]>

Author: ZhaoxiangJin

boards/nxp/frdm_mcxn236/frdm_mcxn236-pinctrl.dtsi

@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 NXP
+ * Copyright 2024-2025 NXP
  * SPDX-License-Identifier: Apache-2.0
  */
 
@@ -227,10 +227,23 @@
 				 <SAI1_TXD0_PIO2_8>,
 				 <SAI1_RX_FS_PIO1_7>,
 				 <SAI1_RX_BCLK_PIO3_18>,
+				 <SAI1_MCLK_PIO3_6>,
 				 <SAI1_RXD0_PIO2_9>;
 			drive-strength = "high";
 			slew-rate = "fast";
 			input-enable;
 		};
 	};
+
+	pinmux_flexcomm2_i2c: pinmux_flexcomm2_i2c {
+		group0 {
+			pinmux = <FC2_P0_PIO4_0>,
+				 <FC2_P1_PIO4_1>;
+			slew-rate = "fast";
+			drive-strength = "low";
+			input-enable;
+			bias-pull-up;
+			drive-open-drain;
+		};
+	};
 };

boards/nxp/frdm_mcxn236/frdm_mcxn236.dts

@@ -175,6 +175,22 @@
 
 &flexcomm2_lpi2c2 {
 	status = "okay";
+	pinctrl-0 = <&pinmux_flexcomm2_i2c>;
+	pinctrl-names = "default";
+	clock-frequency = <I2C_BITRATE_STANDARD>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	/* Note: The DA7212 codec is not populated on this board by default.
+	 * Refer to the board MCX_N5XX_EVK to use this sample with the same codec.
+	 */
+	audio_codec: da7212@1a {
+		compatible = "dlg,da7212";
+		reg = <0x1a>;
+		clocks = <&syscon MCUX_SAI1_CLK>;
+		clock-source = "MCLK";
+		clock-names = "mclk";
+	};
 };
 
 &flexcomm3 {