xref: /freebsd/sys/contrib/device-tree/src/arm64/freescale/imx8mn-dimonoff-gateway-evk.dts (revision 8d13bc63c0e1d50bc9e47ac1f26329c999bfecf0)

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Copyright 2022 DimOnOff
 */

/dts-v1/;

#include <dt-bindings/usb/pd.h>
#include "imx8mn-var-som-symphony.dts"

/ {
	model = "DimOnOff Gateway EVK board";
	compatible = "dimonoff,gateway-evk", "variscite,var-som-mx8mn",
		     "fsl,imx8mn";

	/*
	 * U30 FPF2193 regulator.
	 * Source = BASE_PER_3V3 = SOM_3V3 (COM pin 49).
	 */
	reg_disp_3v3: regulator-disp-3v3 {
		compatible = "regulator-fixed";
		regulator-name = "Display 3V3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
		regulator-boot-on;
	};

	gpio-keys {
		compatible = "gpio-keys";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_gpio_keys>;

		key-enter {
			label = "enter";
			gpios = <&gpio1 8 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_ENTER>;
			wakeup-source;
		};
	};

	/* Bourns PEC12R rotary encoder, 24 steps. */
	rotary: rotary-encoder {
		compatible = "rotary-encoder";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_rotary>;
		gpios = <&gpio5 12 GPIO_ACTIVE_LOW>, /* A */
			<&gpio5 13 GPIO_ACTIVE_LOW>; /* B */
		linux,axis = <0>; /* REL_X */
		rotary-encoder,encoding = "gray";
		rotary-encoder,relative-axis;
	};
};

/* Disable Asynchronous Sample Rate Converter (audio) */
&easrc {
	status = "disabled";
};

&ecspi1 {
	/* Resistive touch controller */
	/delete-node/ touchscreen@0;
};

&gpu {
	status = "disabled";
};

&i2c2 {
	adc@48 {
		compatible = "ti,ads7924";
		reg = <0x48>;
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_adc>;
		vref-supply = <&reg_disp_3v3>;
		reset-gpios = <&gpio5 5 GPIO_ACTIVE_LOW>;
		#address-cells = <1>;
		#size-cells = <0>;

		channel@0 {
			reg = <0>;
			label = "Pot0";
		};
		channel@1 {
			reg = <1>;
			label = "Pot1";
		};
		channel@2 {
			reg = <2>;
			label = "Pot2";
		};
		channel@3 {
			reg = <3>;
			label = "Pot3";
		};
	};

	rtc@51 {
		compatible = "nxp,pcf2129";
		reg = <0x51>;
		reset-source; /* For watchdog. */
	};

	rtc@53 {
		compatible = "nxp,pcf2131";
		reg = <0x53>;
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_rtc>;
		reset-source; /* For watchdog. */
		interrupt-parent = <&gpio5>;
		interrupts = <10 IRQ_TYPE_EDGE_FALLING>; /* J17.6 on EVK */
	};
};

&i2c3 {
	touchscreen@38 {
		status = "disabled";
	};

	codec@1a {
		status = "disabled";
	};

	/* DS1337 RTC module */
	rtc@68 {
		status = "disabled";
	};
};

&sai5 {
	status = "disabled";
};

&iomuxc {
	pinctrl_gpio_keys: gpiokeysgrp {
		fsl,pins = <
			MX8MN_IOMUXC_GPIO1_IO08_GPIO1_IO8	0xc6
		>;
	};

	pinctrl_rotary: rotarygrp {
		fsl,pins = <
			MX8MN_IOMUXC_ECSPI2_MISO_GPIO5_IO12	0x00000156
			MX8MN_IOMUXC_ECSPI2_SS0_GPIO5_IO13	0x00000156
		>;
	};

	pinctrl_adc: adcgrp {
		fsl,pins = <
			MX8MN_IOMUXC_SPDIF_EXT_CLK_GPIO5_IO5	0x00000156
		>;
	};

	pinctrl_rtc: rtcgrp {
		fsl,pins = <
			MX8MN_IOMUXC_ECSPI2_SCLK_GPIO5_IO10	0x00000156
			MX8MN_IOMUXC_ECSPI2_MOSI_GPIO5_IO11	0x00000156
		>;
	};
};