jetson-seeed-2mic-voicecard.dts

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Jetson Device-tree overlay for ReSpeaker 2-Mics Pi HAT.
 * include WM8960 Codec & SPIDEV pinmux
 *
 * Copyright (c) 2020 Seeed Technology Co,Ltd - https://www.seeed.cc.
 * All rights reserved.
 *
 */
#include <jetson-seeed-2mic-wm8960.dts>

/ {
	fragment@10 {
		target = <&pinmux>;
		__overlay__ {
			header-40pin-pinmux {
				hdr40-pin19 {
					nvidia,pins = "spi1_mosi_pc0";
					nvidia,function = "spi1";
					nvidia,pull = <TEGRA_PIN_PULL_DOWN>;
					nvidia,tristate = <TEGRA_PIN_DISABLE>;
					nvidia,enable-input = <TEGRA_PIN_ENABLE>;
				};
				hdr40-pin21 {
					nvidia,pins = "spi1_miso_pc1";
					nvidia,function = "spi1";
					nvidia,pull = <TEGRA_PIN_PULL_DOWN>;
					nvidia,tristate = <TEGRA_PIN_DISABLE>;
					nvidia,enable-input = <TEGRA_PIN_ENABLE>;
				};
				hdr40-pin23 {
					nvidia,pins = "spi1_sck_pc2";
					nvidia,function = "spi1";
					nvidia,pull = <TEGRA_PIN_PULL_DOWN>;
					nvidia,tristate = <TEGRA_PIN_DISABLE>;
					nvidia,enable-input = <TEGRA_PIN_ENABLE>;
				};
				/* spi0.cs0 */
				hdr40-pin24 {
					nvidia,pins = "spi1_cs0_pc3";
					nvidia,function = "spi1";
					nvidia,pull = <TEGRA_PIN_PULL_UP>;
					nvidia,tristate = <TEGRA_PIN_DISABLE>;
					nvidia,enable-input = <TEGRA_PIN_ENABLE>;
				};

				/* spi0.cs1, uncomment to enable it */
				/*
				hdr40-pin26 {
					nvidia,pins = "spi1_cs1_pc4";
					nvidia,function = "spi1";
					nvidia,pull = <TEGRA_PIN_PULL_UP>;
					nvidia,tristate = <TEGRA_PIN_DISABLE>;
					nvidia,enable-input = <TEGRA_PIN_ENABLE>;
				};
				*/

				/*
				 * Move ID_I2C pins to GPIO mode
				 *
				 * Note: export a gpio in /sys/class/gpio
				 *       will override the pinmux setting
				 *       and set the pin to gpio mode,
				 *       so this pinmux not required
				 */
				#if 0
				hdr40-pin27 {
					nvidia,pins = "gen1_i2c_sda_pj0";
					nvidia,function = "i2c1" /* "rsvd1" */;
					nvidia,pull = <TEGRA_PIN_PULL_UP>;
					nvidia,tristate = <TEGRA_PIN_DISABLE>;
					nvidia,enable-input = <TEGRA_PIN_ENABLE>;
					nvidia,io-high-voltage = <TEGRA_PIN_ENABLE>;
				};
				hdr40-pin28 {
					nvidia,pins = "gen1_i2c_scl_pj1";
					nvidia,function = "i2c1" /* "rsvd1" */;
					nvidia,pull = <TEGRA_PIN_PULL_UP>;
					nvidia,tristate = <TEGRA_PIN_DISABLE>;
					nvidia,enable-input = <TEGRA_PIN_ENABLE>;
					nvidia,io-high-voltage = <TEGRA_PIN_ENABLE>;
				};
				#endif
			};
		};
	};
};