arm:dts: Add support for SANTINO-LT

Add support for the Garz & Fricke SANTINO-LT platform. The SANTINO-LT
platform is based on an NXP i.MX6 Solo or DualLite. It includes support
for a parallel RBG Display, CAN, Audio, I2C Touch, RS232, RS485,
microSD-Card.

arch/arm/boot/dts/garzfricke/Makefile

 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_SOC_IMX6Q) += \
 	imx6dl-santaro.dtb \
+	imx6dl-santino-lt.dtb \
 	imx6dl-santino.dtb \
 	imx6dl-santoka.dtb \
 	imx6q-santaro.dtb \

arch/arm/boot/dts/garzfricke/imx6dl-santino-lt.dts

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2013 Freescale Semiconductor, Inc.
+ * Copyright 2020 Garz & Fricke GmbH
+ *
+ * Authors: Fabio Estevam <fabio.estevam@freescale.com>
+ *          Clemens Terasa <clemens.terasa@garz-fricke.com>
+ * 
+ */
+/dts-v1/;
+#include "../imx6dl.dtsi"
+#include "imx6dl-santino-lt.dtsi"
+
+/ {
+	model = "Santino-LT i.MX6 Dual Lite Board";
+	compatible = "guf,imx6dl-santino-lt", "fsl,imx6dl";
+};
+

arch/arm/boot/dts/garzfricke/imx6dl-santino-lt.dtsi

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2013 Freescale Semiconductor, Inc.
+ * Copyright 2020 Garz & Fricke GmbH
+ *
+ * Author: Fabio Estevam <fabio.estevam@freescale.com>
+ *          Clemens Terasa <clemens.terasa@garz-fricke.com>
+ * 
+ */
+
+#include <dt-bindings/sound/fsl-imx-audmux.h>
+#include "imx6qdl-san.dtsi"
+
+/ {
+	memory {
+		device_type = "memory";
+		reg = <0x10000000 0x20000000>;
+	};
+	
+	aliases {
+		serial0 = &uart5;
+		serial2 = &uart1;
+	};
+
+	chosen {
+		stdout-path = &uart5;
+	};
+
+	lcd_display: disp0 {
+		compatible = "fsl,imx-parallel-display";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		interface-pix-fmt = "rgb24";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_ipu1_lcdif18bpp &pinctrl_ipu1_lcdif24bpp>;
+		status = "okay";
+
+		port@0 {
+			reg = <0>;
+
+			lcd_display_in: endpoint {
+				remote-endpoint = <&ipu1_di0_disp0>;
+			};
+		};
+
+		port@1 {
+			reg = <1>;
+
+			lcd_display_out: endpoint {
+				remote-endpoint = <&lcd_panel_in>;
+			};
+		};
+	};
+
+	panel: panel {
+		compatible = "guf,panel-dt";
+		backlight = <&backlight>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_lcd_enable1>;
+		power-supply = <&reg_SW4_3V3>;
+
+		enable-gpios = <&gpio5 21 GPIO_ACTIVE_HIGH>;
+		status = "okay";
+
+		port {
+			lcd_panel_in: endpoint {
+				remote-endpoint = <&lcd_display_out>;
+			};
+		};
+	};
+
+	reg_5p0: regulator-5v0 {
+		compatible = "regulator-fixed";
+		regulator-name = "5P0V";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-always-on;
+	};
+
+	reg_eth_phy: regulator-eth-phy {
+		compatible = "regulator-fixed";
+		regulator-name = "ETH_PHY";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&reg_SW4_3V3>;
+	};
+};
+
+&backlight {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_bl_on1>;
+	enable-gpios = <&gpio1 18 GPIO_ACTIVE_HIGH>;
+	status = "okay";
+};
+
+&can1 {
+	xceiver-supply = <&reg_5p0>;
+};
+
+&codec {
+	VDDD-supply = <&sw3_reg>;
+};
+
+&gpio6 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_keypad_gpio1>;
+	gpio-line-names = "", "", "", "", "", "", "", "keypad_pin4",
+			  "keypad_pin3", "keypad_pin5", "keypad_pin6", "keypad_pin7", "", "", "", "keypad_pin8",
+			  "", "", "", "", "", "", "", "",
+			  "", "", "", "", "", "", "", "";
+};
+
+&i2c1 {
+	pmic: pfuze3000@8 {
+		compatible = "fsl,pfuze3000";
+		reg = <0x08>;
+
+		regulators {
+			sw1a_reg: sw1ab {
+				regulator-min-microvolt = <300000>;
+				regulator-max-microvolt = <1875000>;
+				regulator-boot-on;
+				regulator-always-on;
+				regulator-ramp-delay = <6250>;
+			};
+
+			sw1b_reg: sw1b {
+				regulator-min-microvolt = <300000>;
+				regulator-max-microvolt = <1875000>;
+				regulator-boot-on;
+				regulator-always-on;
+				regulator-ramp-delay = <6250>;
+			};
+
+			reg_SW4_3V3:sw2_reg: sw2 {
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			sw3_reg: sw3 {
+				/* FNGBoot sets correct voltage, shall not be touched by the OS */
+				compatible = "regulator-fixed";
+				regulator-name = "DDR_1V5 (sw3)";
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			swbst_reg: swbst {
+				regulator-min-microvolt = <5000000>;
+				regulator-max-microvolt = <5150000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			snvs_reg: vsnvs {
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3000000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			vref_reg: vrefddr {
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			v33_reg: v33 {
+				regulator-min-microvolt = <2850000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+				regulator-boot-on;
+			};
+
+			vldo2_reg: vldo2 {
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1550000>;
+				regulator-always-on;
+				regulator-boot-on;
+			};
+		};
+	};
+};
+
+&ipu1_di0_disp0 {
+	remote-endpoint = <&lcd_display_in>;
+};
+
+&lm75 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_lm75_1>;
+	interrupts = <7 0x4>;
+	interrupt-parent = <&gpio4>;
+	status = "okay";
+};
+
+&pwm1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm1>;
+	status = "okay";
+};
+
+&reg_usb_otg_vbus {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usbotgvbus1>;
+	gpio = <&gpio3 22 0>;
+};
+
+&rtc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rtc1>;
+	status = "okay";
+};
+
+&sound {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_audmux3>;
+	status = "okay";
+	cpu_dai: simple-audio-card,cpu {
+		sound-dai = <&ssi1>;
+	};
+};
+
+&ssi1 {
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1_rxtx &pinctrl_uart1_rcts>;
+	linux,rs485-enabled-at-boot-time;
+	uart-has-rtscts;
+	status = "okay";
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2_rxtx>;
+	status = "okay";
+};
+
+&uart5 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart5_rxtx &pinctrl_uart5_rcts>;
+	uart-has-rtscts;
+	status = "okay";
+};
+
+&usbotg {
+	vbus-supply = <&reg_usb_otg_vbus>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usbotg>;
+	disable-over-current;
+	srp-disable;
+	hnp-disable;
+	adp-disable;
+	status = "okay";
+};
+
+&usdhc2 {
+	disable-wp;
+	status = "okay";
+};