linux-kernel/linux-7.2.3/arch/arm64/boot/dts/ti/k3-am68-phyboard-izar-peb-av-15.dtso

// SPDX-License-Identifier: GPL-2.0-only OR MIT
/*
 * Copyright (C) 2026 PHYTEC Messtechnik GmbH
 * Author: Dominik Haller <d.haller@phytec.de>
 */

/dts-v1/;
/plugin/;

#include <dt-bindings/gpio/gpio.h>
#include "k3-pinctrl.h"

&{/} {
	audio_refclk1: audio-clock {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <19200000>;
	};

	hdmi: hdmi-connector {
		compatible = "hdmi-connector";
		label = "hdmi";
		type = "a";
		ddc-i2c-bus = <&main_i2c2>;

		port {
			hdmi_connector_in: endpoint {
				remote-endpoint = <&lt8912b_out>;
			};
		};
	};

	reg_audio_3v3: regulator-audio-3v3 {
		compatible = "regulator-fixed";
		regulator-name = "VCC3V3_AUDIO";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
	};

	reg_audio_1v8: regulator-audio-1v8 {
		compatible = "regulator-fixed";
		regulator-name = "VCC1V8_AUDIO";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		regulator-always-on;
	};

	sound {
		compatible = "simple-audio-card";
		simple-audio-card,name = "PEB-AV-15";
		simple-audio-card,widgets =
			"Headphone", "Headphone Jack",
			"Microphone", "Mic Jack";
		simple-audio-card,routing =
			"Headphone Jack", "HPLOUT",
			"Headphone Jack", "HPROUT",
			"MIC3R", "Mic Jack",
			"Mic Jack", "Mic Bias";
		simple-audio-card,format = "dsp_b";
		simple-audio-card,bitclock-inversion;
		simple-audio-card,bitclock-master = <&link0_codec>;
		simple-audio-card,frame-master = <&link0_codec>;

		link0_cpu: simple-audio-card,cpu {
			sound-dai = <&mcasp0>;
		};

		link0_codec: simple-audio-card,codec {
			sound-dai = <&audio_codec>;
			clocks = <&audio_refclk1>;
		};
	};

};

&dphy_tx1 {
	status = "okay";
};

&dsi1 {
	status = "okay";
};

&dsi1_ports {
	#address-cells = <1>;
	#size-cells = <0>;
	port@0 {
		reg = <0>;
		dsi1_out: endpoint {
			remote-endpoint = <&lt8912b_in>;
		};
	};

	port@1 {
		reg = <1>;
		dsi1_in: endpoint {
			remote-endpoint = <&dpi3_out>;
		};
	};
};

&dss {
	status = "okay";
};

&dss_ports {
	#address-cells = <1>;
	#size-cells = <0>;

	port@3 {
		reg = <3>;
		dpi3_out: endpoint {
			remote-endpoint = <&dsi1_in>;
		};
	};
};

&mcasp0 {
	pinctrl-names = "default";
	pinctrl-0 = <&mcasp0_pins>;

	#sound-dai-cells = <0>;

	op-mode = <0>;	/* MCASP_IIS_MODE */
	tdm-slots = <2>;

	/* 4 serializers */
	serial-dir = <  /* 0: INACTIVE, 1: TX, 2: RX */
		2 0 0 1
		0 0 0 0
		0 0 0 0
		0 0 0 0
	>;

	tx-num-evt = <32>;
	rx-num-evt = <32>;
	status = "okay";
};

&main_i2c2 {
	#address-cells = <1>;
	#size-cells = <0>;

	audio_codec: audio-codec@18 {
		compatible = "ti,tlv320aic3007";
		reg = <0x18>;
		#sound-dai-cells = <0>;
		ai3x-micbias-vg = <2>;
		AVDD-supply = <&reg_audio_3v3>;
		IOVDD-supply = <&reg_audio_3v3>;
		DRVDD-supply = <&reg_audio_3v3>;
		DVDD-supply = <&reg_audio_1v8>;
	};

	bridge@48 {
		compatible = "lontium,lt8912b";
		reg = <0x48>;

		ports {
			#address-cells = <1>;
			#size-cells = <0>;

			port@0 {
				reg = <0>;
				lt8912b_in: endpoint {
					data-lanes = <0 1 2 3>;
					remote-endpoint = <&dsi1_out>;
				};
			};

			port@1 {
				reg = <1>;
				lt8912b_out: endpoint {
					remote-endpoint = <&hdmi_connector_in>;
				};
			};
		};
	};
};

&main_pmx0 {
	mcasp0_pins: mcasp0-default-pins {
		pinctrl-single,pins = <
			J721S2_IOPAD(0x03c, PIN_INPUT, 1) /* (U27) WCLK, MCASP0_AFSX.MCASP0_AFSX */
			J721S2_IOPAD(0x038, PIN_INPUT, 1) /* (AB28) BCLK, MCASP0_ACLKX.MCASP0_ACLKX */
			J721S2_IOPAD(0x040, PIN_OUTPUT, 1) /* (AC28) DOUT, MCASP0_AXR0.MCASP0_AXR0 */
			J721S2_IOPAD(0x07c, PIN_INPUT, 1) /* (T27) DIN, MCASP0_AXR3.MCASP0_AXR3 */
		>;
	};
};