jetson-seeed-2mic-wm8960.dts

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Jetson Device-tree overlay for ReSpeaker 2-Mics Pi HAT.
 * only include WM8960 Codec support
 *
 * Copyright (c) 2020 Seeed Technology Co,Ltd - https://www.seeed.cc.
 * All rights reserved.
 *
 */

/dts-v1/;
/plugin/;

#include <dt-bindings/pinctrl/tegra210-p3448-0000-p3449-0000-a02.h>
#include <dt-bindings/pinctrl/pinctrl-tegra.h>

/ {
	overlay-name = "Seeed Voice Card 2MIC";
	compatible = JETSON_COMPATIBLE;

	fragment@0 {
		target-path = "/";
		__overlay__ {
			clocks {
				wm8960_mclk: wm8960_mclk {
					compatible = "fixed-clock";
					#clock-cells = <0x0>;
					clock-frequency = <24000000>;
					clock-output-names = "wm8960-mclk";
					status = "okay";
				};
			};
		};
	};

	fragment@1 {
		target = <&hdr40_i2c1>;
		__overlay__ {
			#address-cells = <1>;
			#size-cells = <0>;

			wm8960: wm8960@1A {
				#sound-dai-cells = <0x0>;
				compatible = "wlf,wm8960";
				status = "okay";

				reg = <0x1a>;

				AVDD-supply = <&hdr40_vdd_3v3>;
				// DVDD-supply = <&v1v8_audio>;

				clocks = <&wm8960_mclk>;
				clock-names = "mclk";

				wlf,shared-lrclk;
			};
		};
	};

	fragment@2 {
		target = <&tegra_sound>;
		__overlay__ {
			/*
			compatible = "nvidia,tegra-audio-t210ref-mobile-wm8960";
			nvidia,model = "tegra-snd-t210ref-mobile-wm8960";
			*/
			nvidia,audio-routing =
				"x LINPUT1",		"x MICB",
				"x LINPUT1",		"x Mic",
				"x RINPUT1",		"x MICB",
				"x RINPUT1",		"x Mic",
				"x Int Spk",		"x SPK_LP",
				"x Int Spk",		"x SPK_LN",
				"x Int Spk",		"x SPK_RP",
				"x Int Spk",		"x SPK_RN",
				"x Headphone",		"x HP_L",
				"x Headphone",		"x HP_R";
		};
	};

	fragment@3 {
		target = <&hdr40_snd_link_i2s>;
		__overlay__ {
			link-name = "seeed-voicecard-2mic";

			codec-dai = <&wm8960>;
			codec-dai-name = "wm8960-hifi";
			bitclock-master;
			frame-master;
		};
	};

	fragment@4 {
		target = <&pinmux>;
		__overlay__ {
			pinctrl-names = "default";
			pinctrl-0 = <&hdr40_pinmux>;

			hdr40_pinmux: header-40pin-pinmux {
				pin12 {
					nvidia,pins = HDR40_PIN12;
					nvidia,function = HDR40_I2S;
					nvidia,pull = <TEGRA_PIN_PULL_DOWN>;
					nvidia,tristate = <TEGRA_PIN_DISABLE>;
					nvidia,enable-input = <TEGRA_PIN_ENABLE>;
				};

				pin35 {
					nvidia,pins = HDR40_PIN35;
					nvidia,function = HDR40_I2S;
					nvidia,pull = <TEGRA_PIN_PULL_DOWN>;
					nvidia,tristate = <TEGRA_PIN_DISABLE>;
					nvidia,enable-input = <TEGRA_PIN_ENABLE>;
				};

				pin38 {
					nvidia,pins = HDR40_PIN38;
					nvidia,function = HDR40_I2S;
					nvidia,pull = <TEGRA_PIN_PULL_DOWN>;
					nvidia,tristate = <TEGRA_PIN_ENABLE>;
					nvidia,enable-input = <TEGRA_PIN_ENABLE>;
				};

				pin40 {
					nvidia,pins = HDR40_PIN40;
					nvidia,function = HDR40_I2S;
					nvidia,pull = <TEGRA_PIN_PULL_DOWN>;
					nvidia,tristate = <TEGRA_PIN_DISABLE>;
					nvidia,enable-input = <TEGRA_PIN_DISABLE>;
				};
			};
		};
	};
};