ARM: dts: imx: Add support for Logic PD i.MX6QD EVM

The EVM consists of a system on module (SOM) and baseboard, and LCD.
This patch adds a DTSI file for the SOM and baseboard separately,
then a wrapper to combine them and specify processor type and a
LCD information.
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6-logicpd-som.dtsi

+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2019 Logic PD, Inc.
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	chosen {
+		stdout-path = &uart1;
+	};
+
+	memory@10000000 {
+		device_type = "memory";
+		reg = <0x10000000 0x80000000>;
+	};
+
+	reg_wl18xx_vmmc: regulator-wl18xx {
+		compatible = "regulator-fixed";
+		regulator-name = "vwl1837";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&gpio7 0 GPIO_ACTIVE_HIGH>;
+		startup-delay-us = <70000>;
+		enable-active-high;
+	};
+};
+
+&clks {
+	assigned-clocks = <&clks IMX6QDL_CLK_LDB_DI0_SEL>,
+			  <&clks IMX6QDL_CLK_LDB_DI1_SEL>;
+	assigned-clock-parents = <&clks IMX6QDL_CLK_PLL3_USB_OTG>,
+				 <&clks IMX6QDL_CLK_PLL3_USB_OTG>;
+};
+
+&gpmi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gpmi_nand>;
+	nand-on-flash-bbt;
+	status = "okay";
+};
+
+&i2c3 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c3>;
+	status = "okay";
+
+	pfuze100: pmic@8 {
+		compatible = "fsl,pfuze100";
+		reg = <0x08>;
+
+		regulators {
+			sw1a_reg: sw1ab {
+				regulator-min-microvolt = <725000>;
+				regulator-max-microvolt = <1450000>;
+				regulator-name = "vddcore";
+				regulator-boot-on;
+				regulator-always-on;
+				regulator-ramp-delay = <6250>;
+			};
+
+			sw1c_reg: sw1c {
+				regulator-min-microvolt = <725000>;
+				regulator-max-microvolt = <1450000>;
+				regulator-name = "vddsoc";
+				regulator-boot-on;
+				regulator-always-on;
+				regulator-ramp-delay = <6250>;
+			};
+
+			sw2_reg: sw2 {
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-name = "gen_3v3";
+				regulator-boot-on;
+			};
+
+			sw3a_reg: sw3a {
+				regulator-min-microvolt = <1350000>;
+				regulator-max-microvolt = <1350000>;
+				regulator-name = "sw3a_vddr";
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			sw3b_reg: sw3b {
+				regulator-min-microvolt = <1350000>;
+				regulator-max-microvolt = <1350000>;
+				regulator-name = "sw3b_vddr";
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			sw4_reg: sw4 {
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-name = "gen_rgmii";
+			};
+
+			swbst_reg: swbst {
+				regulator-min-microvolt = <5000000>;
+				regulator-max-microvolt = <5150000>;
+				regulator-name = "gen_5v0";
+			};
+
+			snvs_reg: vsnvs {
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <3000000>;
+				regulator-name = "gen_vsns";
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			vref_reg: vrefddr {
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			vgen1_reg: vgen1 {
+				regulator-min-microvolt = <1500000>;
+				regulator-max-microvolt = <1500000>;
+				regulator-name = "gen_1v5";
+			};
+
+			vgen2_reg: vgen2 {
+				regulator-name = "vgen2";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1550000>;
+			};
+
+			vgen3_reg: vgen3 {
+				regulator-name = "gen_vadj_0";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			vgen4_reg: vgen4 {
+				regulator-name = "gen_1v8";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			vgen5_reg: vgen5 {
+				regulator-name = "gen_vadj_1";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+			};
+
+			vgen6_reg: vgen6 {
+				regulator-name = "gen_2v5";
+				regulator-min-microvolt = <2500000>;
+				regulator-max-microvolt = <2500000>;
+				regulator-always-on;
+			};
+
+			coin_reg: coin {
+				regulator-min-microvolt = <2500000>;
+				regulator-max-microvolt = <3000000>;
+				regulator-always-on;
+			};
+		};
+	};
+
+	temperature-sensor@49 {
+		compatible = "ti,tmp102";
+		reg = <0x49>;
+		interrupt-parent = <&gpio6>;
+		interrupts = <15 IRQ_TYPE_LEVEL_LOW>;
+		#thermal-sensor-cells = <1>;
+	};
+
+	temperature-sensor@4a {
+		compatible = "ti,tmp102";
+		reg = <0x4a>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_tempsense>;
+		interrupt-parent = <&gpio6>;
+		interrupts = <15 IRQ_TYPE_LEVEL_LOW>;
+		#thermal-sensor-cells = <1>;
+	};
+
+	eeprom@51 {
+		compatible = "atmel,24c64";
+		pagesize = <32>;
+		read-only;	/* Manufacturing EEPROM programmed at factory */
+		reg = <0x51>;
+	};
+
+	eeprom@52 {
+		compatible = "atmel,24c64";
+		pagesize = <32>;
+		reg = <0x52>;
+	};
+};
+
+/* Reroute power feeding the CPU to come from the external PMIC */
+&reg_arm
+{
+	vin-supply = <&sw1a_reg>;
+};
+
+&reg_soc
+{
+	vin-supply = <&sw1c_reg>;
+};
+
+&iomuxc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_hog>;
+
+	pinctrl_gpmi_nand: gpmi-nandgrp {
+		fsl,pins = <
+			MX6QDL_PAD_NANDF_CLE__NAND_CLE		0x0b0b1
+			MX6QDL_PAD_NANDF_ALE__NAND_ALE		0x0b0b1
+			MX6QDL_PAD_NANDF_WP_B__NAND_WP_B	0x0b0b1
+			MX6QDL_PAD_NANDF_RB0__NAND_READY_B	0x0b000
+			MX6QDL_PAD_NANDF_CS0__NAND_CE0_B	0x0b0b1
+			MX6QDL_PAD_SD4_CMD__NAND_RE_B		0x0b0b1
+			MX6QDL_PAD_SD4_CLK__NAND_WE_B		0x0b0b1
+			MX6QDL_PAD_NANDF_D0__NAND_DATA00	0x0b0b1
+			MX6QDL_PAD_NANDF_D1__NAND_DATA01	0x0b0b1
+			MX6QDL_PAD_NANDF_D2__NAND_DATA02	0x0b0b1
+			MX6QDL_PAD_NANDF_D3__NAND_DATA03	0x0b0b1
+			MX6QDL_PAD_NANDF_D4__NAND_DATA04	0x0b0b1
+			MX6QDL_PAD_NANDF_D5__NAND_DATA05	0x0b0b1
+			MX6QDL_PAD_NANDF_D6__NAND_DATA06	0x0b0b1
+			MX6QDL_PAD_NANDF_D7__NAND_DATA07	0x0b0b1
+		>;
+	};
+
+	pinctrl_hog: hoggrp {
+		fsl,pins = <	/* Enable ARM Debugger */
+			MX6QDL_PAD_CSI0_MCLK__ARM_TRACE_CTL	0x1b0b0
+			MX6QDL_PAD_CSI0_PIXCLK__ARM_EVENTO	0x1b0b0
+			MX6QDL_PAD_CSI0_VSYNC__ARM_TRACE00	0x1b0b0
+			MX6QDL_PAD_CSI0_DATA_EN__ARM_TRACE_CLK	0x1b0b0
+			MX6QDL_PAD_CSI0_DAT4__ARM_TRACE01	0x1b0b0
+			MX6QDL_PAD_CSI0_DAT5__ARM_TRACE02	0x1b0b0
+			MX6QDL_PAD_CSI0_DAT6__ARM_TRACE03	0x1b0b0
+			MX6QDL_PAD_CSI0_DAT7__ARM_TRACE04	0x1b0b0
+			MX6QDL_PAD_CSI0_DAT8__ARM_TRACE05	0x1b0b0
+			MX6QDL_PAD_CSI0_DAT9__ARM_TRACE06	0x1b0b0
+			MX6QDL_PAD_CSI0_DAT10__ARM_TRACE07	0x1b0b0
+			MX6QDL_PAD_CSI0_DAT11__ARM_TRACE08	0x1b0b0
+			MX6QDL_PAD_CSI0_DAT12__ARM_TRACE09	0x1b0b0
+			MX6QDL_PAD_CSI0_DAT13__ARM_TRACE10	0x1b0b0
+			MX6QDL_PAD_CSI0_DAT14__ARM_TRACE11	0x1b0b0
+			MX6QDL_PAD_CSI0_DAT15__ARM_TRACE12	0x1b0b0
+			MX6QDL_PAD_CSI0_DAT16__ARM_TRACE13	0x1b0b0
+			MX6QDL_PAD_CSI0_DAT17__ARM_TRACE14	0x1b0b0
+			MX6QDL_PAD_CSI0_DAT18__ARM_TRACE15	0x1b0b0
+			MX6QDL_PAD_GPIO_0__CCM_CLKO1        0x130b0
+		>;
+	};
+
+	pinctrl_i2c3: i2c3grp {
+		fsl,pins = <
+			MX6QDL_PAD_EIM_D17__I2C3_SCL		0x4001b8b1
+			MX6QDL_PAD_EIM_D18__I2C3_SDA		0x4001b8b1
+		>;
+	};
+
+	pinctrl_tempsense: tempsensegrp {
+		fsl,pins = <
+			MX6QDL_PAD_NANDF_CS2__GPIO6_IO15 0x1b0b0
+		>;
+	};
+
+	pinctrl_uart1: uart1grp {
+		fsl,pins = <
+			MX6QDL_PAD_SD3_DAT6__UART1_RX_DATA	0x1b0b1
+			MX6QDL_PAD_SD3_DAT7__UART1_TX_DATA	0x1b0b1
+		>;
+	};
+
+	pinctrl_uart2: uart2grp {
+		fsl,pins = <
+			MX6QDL_PAD_SD3_RST__GPIO7_IO08		0x13059	/* BT_EN */
+			MX6QDL_PAD_SD4_DAT4__UART2_RX_DATA	0x1b0b1
+			MX6QDL_PAD_SD4_DAT5__UART2_RTS_B	0x1b0b1
+			MX6QDL_PAD_SD4_DAT6__UART2_CTS_B	0x1b0b1
+			MX6QDL_PAD_SD4_DAT7__UART2_TX_DATA	0x1b0b1
+		>;
+	};
+
+	pinctrl_usdhc1: usdhc1grp {
+		fsl,pins = <
+			MX6QDL_PAD_SD1_CMD__SD1_CMD	0x170B9
+			MX6QDL_PAD_SD1_CLK__SD1_CLK	0x100B9
+			MX6QDL_PAD_SD1_DAT0__SD1_DATA0	0x170B9
+			MX6QDL_PAD_SD1_DAT1__SD1_DATA1	0x170B9
+			MX6QDL_PAD_SD1_DAT2__SD1_DATA2	0x170B9
+			MX6QDL_PAD_SD1_DAT3__SD1_DATA3	0x170B9
+		>;
+	};
+
+	pinctrl_usdhc3: usdhc3grp {
+		fsl,pins = <
+			MX6QDL_PAD_SD3_CMD__SD3_CMD    0x17049
+			MX6QDL_PAD_SD3_CLK__SD3_CLK    0x10049
+			MX6QDL_PAD_SD3_DAT0__SD3_DATA0 0x17049
+			MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x17049
+			MX6QDL_PAD_SD3_DAT2__SD3_DATA2 0x17049
+			MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x17049
+			MX6QDL_PAD_SD3_DAT4__GPIO7_IO01	0x130b0 /* WL_IRQ */
+			MX6QDL_PAD_SD3_DAT5__GPIO7_IO00	0x17059 /* WLAN_EN */
+		>;
+	};
+};
+
+&snvs_poweroff {
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1>;
+	status = "okay";
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2>;
+	uart-has-rtscts;
+	status = "okay";
+
+	bluetooth {
+		compatible = "ti,wl1837-st";
+		enable-gpios = <&gpio7 8 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&usdhc1 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc1>;
+	non-removable;
+	keep-power-in-suspend;
+	wakeup-source;
+	vmmc-supply = <&sw2_reg>;
+	status = "okay";
+};
+
+&usdhc3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc3>;
+	non-removable;
+	cap-power-off-card;
+	keep-power-in-suspend;
+	wakeup-source;
+	vmmc-supply = <&reg_wl18xx_vmmc>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	wlcore: wlcore@2 {
+		  compatible = "ti,wl1837";
+		  reg = <2>;
+		  interrupt-parent = <&gpio7>;
+		  interrupts = <1 IRQ_TYPE_LEVEL_HIGH>;
+		  tcxo-clock-frequency = <26000000>;
+	};
+};

arch/arm/boot/dts/imx6q-logicpd.dts

+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2019 Logic PD, Inc.
+
+/dts-v1/;
+#include "imx6q.dtsi"
+#include "imx6-logicpd-som.dtsi"
+#include "imx6-logicpd-baseboard.dtsi"
+
+/ {
+	model = "Logic PD i.MX6QD SOM-M3";
+	compatible = "fsl,imx6q";
+
+	backlight: backlight-lvds {
+		compatible = "pwm-backlight";
+		pwms = <&pwm3 0 20000>;
+		brightness-levels = <0 4 8 16 32 64 128 255>;
+		default-brightness-level = <6>;
+		power-supply = <&reg_lcd>;
+	};
+
+	panel-lvds0 {
+		compatible = "okaya,rs800480t-7x0gp";
+
+		port {
+			panel_in_lvds0: endpoint {
+				remote-endpoint = <&lvds0_out>;
+			};
+		};
+	};
+
+	reg_lcd: regulator-lcd {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_lcd_reg>;
+		compatible = "regulator-fixed";
+		regulator-name = "lcd_panel_pwr";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&gpio4 17 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-always-on;
+		vin-supply = <&reg_3v3>;
+		startup-delay-us = <500000>;
+	};
+
+	reg_lcd_reset: regulator-lcd-reset {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_lcd_reset>;
+		compatible = "regulator-fixed";
+		regulator-name = "nLCD_RESET";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&gpio5 2 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-always-on;
+		vin-supply = <&reg_lcd>;
+	};
+};
+
+&clks {
+	assigned-clocks = <&clks IMX6QDL_CLK_LDB_DI0_SEL>,
+			  <&clks IMX6QDL_CLK_LDB_DI1_SEL>,
+			  <&clks IMX6QDL_CLK_IPU1_DI0_PRE_SEL>,
+			  <&clks IMX6QDL_CLK_IPU2_DI0_PRE_SEL>;
+	assigned-clock-parents = <&clks IMX6QDL_CLK_PLL5_VIDEO_DIV>,
+				 <&clks IMX6QDL_CLK_PLL5_VIDEO_DIV>,
+				 <&clks IMX6QDL_CLK_PLL2_PFD2_396M>,
+				 <&clks IMX6QDL_CLK_PLL2_PFD2_396M>;
+};
+
+&hdmi {
+	ddc-i2c-bus = <&i2c3>;
+	status = "okay";
+};
+
+&ldb {
+	status = "okay";
+
+	lvds-channel@0 {
+		fsl,data-mapping = "spwg";
+		fsl,data-width = <24>;
+		status = "okay";
+
+		port@4 {
+			reg = <4>;
+			lvds0_out: endpoint {
+				remote-endpoint = <&panel_in_lvds0>;
+			};
+		};
+	};
+
+};
+
+&pwm3 {
+	status = "okay";
+};
+
+&reg_hdmi {
+	regulator-always-on;	/* Without this, the level shifter on HDMI doesn't turn on */
+};
+
+&iomuxc {
+	pinctrl_lcd_reg: lcdreg {
+		fsl,pins = <
+			MX6QDL_PAD_DI0_PIN15__GPIO4_IO17	0x100b0	/* R_LCD_PANEL_PWR */
+		>;
+	};
+
+	pinctrl_lcd_reset: lcdreset {
+		fsl,pins = <
+			MX6QDL_PAD_EIM_A25__GPIO5_IO02	0x100b0	/* LCD_nRESET */
+		>;
+	};
+
+	pinctrl_touchscreen: touchscreengrp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_6__GPIO1_IO06	0x1b0b0	/* TOUCH_nPINTDAV */
+		>;
+	};
+};