ARM: dts: imx: Add devicetree for Tolino Vison

Add a devicetree for the Tolino Vision Ebook reader. It is based
on boards marked with "37NB-E60Q30+4A3". It is equipped with an i.MX6SL
SoC.

Expected to work:
 - Buttons
 - Wifi
 - LEDs
 - uSD
 - eMMC
 - USB
 - RTC
 - Touchscreen
 - Backlight

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

2 files changed, 491 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 4f58dba50f0d..fd4f7230cb55 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -694,6 +694,7 @@ dtb-$(CONFIG_SOC_IMX6SL) += \
 	imx6sl-kobo-aura2.dtb \
 	imx6sl-tolino-shine2hd.dtb \
 	imx6sl-tolino-shine3.dtb \
+	imx6sl-tolino-vision.dtb \
 	imx6sl-tolino-vision5.dtb \
 	imx6sl-warp.dtb
 dtb-$(CONFIG_SOC_IMX6SLL) += \
diff --git a/arch/arm/boot/dts/imx6sl-tolino-vision.dts b/arch/arm/boot/dts/imx6sl-tolino-vision.dts
new file mode 100644
index 000000000000..2694fe18a91b
--- /dev/null
+++ b/arch/arm/boot/dts/imx6sl-tolino-vision.dts
@@ -0,0 +1,490 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device tree for the Tolino Vison ebook reader
+ *
+ * Name on mainboard is: 37NB-E60Q30+4A3
+ * Serials start with: 6032
+ *
+ * Copyright 2023 Andreas Kemnade
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/gpio/gpio.h>
+#include "imx6sl.dtsi"
+
+/ {
+	model = "Tolino Vision";
+	compatible = "kobo,tolino-vision", "fsl,imx6sl";
+
+	aliases {
+		mmc0 = &usdhc4;
+		mmc1 = &usdhc2;
+	};
+
+	backlight {
+		compatible = "pwm-backlight";
+		pwms = <&ec 0 50000>;
+		power-supply = <&backlight_regulator>;
+	};
+
+	backlight_regulator: regulator-backlight {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_backlight_power>;
+		regulator-name = "backlight";
+		gpio = <&gpio2 10 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	chosen {
+		stdout-path = &uart1;
+	};
+
+	gpio_keys: gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_keys>;
+
+		key-cover {
+			/* magnetic sensor in the corner next to the uSD slot */
+			label = "Cover";
+			gpios = <&gpio5 12 GPIO_ACTIVE_LOW>;
+			linux,code = <SW_LID>;
+			linux,input-type = <EV_SW>;
+			wakeup-source;
+		};
+
+		key-fl {
+			label = "Frontlight";
+			gpios = <&gpio3 26 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_BRIGHTNESS_CYCLE>;
+		};
+
+		key-power {
+			label = "Power";
+			gpios = <&gpio5 8 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_POWER>;
+			wakeup-source;
+		};
+	};
+
+	leds: leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_leds>;
+
+		led-0 {
+			/* LED on home button */
+			color = <LED_COLOR_ID_WHITE>;
+			function = LED_FUNCTION_STATUS;
+			gpios = <&gpio5 10 GPIO_ACTIVE_LOW>;
+		};
+
+		led-1 {
+			/* LED on power button */
+			color = <LED_COLOR_ID_WHITE>;
+			function = LED_FUNCTION_POWER;
+			gpios = <&gpio5 7 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "timer";
+		};
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x80000000 0x20000000>;
+	};
+
+	reg_wifi: regulator-wifi {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_wifi_power>;
+		regulator-name = "SD3_SPWR";
+		regulator-min-microvolt = <3000000>;
+		regulator-max-microvolt = <3000000>;
+		gpio = <&gpio4 29 GPIO_ACTIVE_LOW>;
+	};
+
+
+	wifi_pwrseq: wifi_pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_wifi_reset>;
+		post-power-on-delay-ms = <20>;
+		reset-gpios = <&gpio5 0 GPIO_ACTIVE_LOW>;
+	};
+};
+
+&i2c1 {
+	pinctrl-names = "default","sleep";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	pinctrl-1 = <&pinctrl_i2c1_sleep>;
+	status = "okay";
+
+	touchscreen@15 {
+		compatible = "elan,ektf2132";
+		reg = <0x15>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_ts>;
+		power-gpios = <&gpio5 13 GPIO_ACTIVE_HIGH>;
+		interrupts-extended = <&gpio5 6 IRQ_TYPE_EDGE_FALLING>;
+	};
+
+	accelerometer@1d {
+		compatible = "fsl,mma8652";
+		reg = <0x1d>;
+	};
+};
+
+&i2c2 {
+	pinctrl-names = "default","sleep";
+	pinctrl-0 = <&pinctrl_i2c2>;
+	pinctrl-1 = <&pinctrl_i2c2_sleep>;
+	clock-frequency = <100000>;
+	status = "okay";
+};
+
+&i2c3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c3>;
+	clock-frequency = <100000>;
+	status = "okay";
+
+	ec: embedded-controller@43 {
+		compatible = "netronix,ntxec";
+		reg = <0x43>;
+		#pwm-cells = <2>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_ec>;
+		interrupts-extended = <&gpio5 11 IRQ_TYPE_EDGE_FALLING>;
+		system-power-controller;
+	};
+};
+
+&snvs_rtc {
+	/*
+	 * We are using the RTC in the PMIC, but this one is not disabled
+	 * in imx6sl.dtsi.
+	 */
+	status = "disabled";
+};
+
+&uart1 {
+	/* J4 */
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1>;
+	status = "okay";
+};
+
+&uart4 {
+	/* J9 */
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart4>;
+	status = "okay";
+};
+
+&usdhc2 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
+	pinctrl-0 = <&pinctrl_usdhc2>;
+	pinctrl-1 = <&pinctrl_usdhc2_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc2_200mhz>;
+	pinctrl-3 = <&pinctrl_usdhc2_sleep>;
+	cd-gpios = <&gpio5 2 GPIO_ACTIVE_LOW>;
+	status = "okay";
+
+	/* removable uSD card */
+};
+
+&usdhc3 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
+	pinctrl-0 = <&pinctrl_usdhc3>;
+	pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
+	pinctrl-3 = <&pinctrl_usdhc3_sleep>;
+	vmmc-supply = <&reg_wifi>;
+	mmc-pwrseq = <&wifi_pwrseq>;
+	cap-power-off-card;
+	non-removable;
+	status = "okay";
+
+	/* CyberTan WC121 (BCM43362) SDIO WiFi */
+};
+
+&usdhc4 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
+	pinctrl-0 = <&pinctrl_usdhc4>;
+	pinctrl-1 = <&pinctrl_usdhc4_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc4_200mhz>;
+	pinctrl-3 = <&pinctrl_usdhc4_sleep>;
+	bus-width = <8>;
+	no-1-8-v;
+	non-removable;
+	status = "okay";
+
+	/* internal eMMC */
+};
+
+&usbotg1 {
+	pinctrl-names = "default";
+	disable-over-current;
+	srp-disable;
+	hnp-disable;
+	adp-disable;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl_backlight_power: backlight-powergrp {
+		fsl,pins = <
+			MX6SL_PAD_EPDC_PWRCTRL3__GPIO2_IO10 0x10059
+		>;
+	};
+
+	pinctrl_ec: ecgrp {
+		fsl,pins = <
+			MX6SL_PAD_SD1_DAT0__GPIO5_IO11  0x17000
+		>;
+	};
+
+	pinctrl_gpio_keys: gpio-keysgrp {
+		fsl,pins = <
+			MX6SL_PAD_SD1_DAT1__GPIO5_IO08  0x110B0
+			MX6SL_PAD_SD1_DAT4__GPIO5_IO12  0x110B0
+			MX6SL_PAD_KEY_COL1__GPIO3_IO26  0x11030
+		>;
+	};
+
+	pinctrl_i2c1: i2c1grp {
+		fsl,pins = <
+			MX6SL_PAD_I2C1_SCL__I2C1_SCL	 0x4001f8b1
+			MX6SL_PAD_I2C1_SDA__I2C1_SDA	 0x4001f8b1
+		>;
+	};
+
+	pinctrl_i2c1_sleep: i2c1-sleepgrp {
+		fsl,pins = <
+			MX6SL_PAD_I2C1_SCL__I2C1_SCL	 0x400108b1
+			MX6SL_PAD_I2C1_SDA__I2C1_SDA	 0x400108b1
+		>;
+	};
+
+	pinctrl_i2c2: i2c2grp {
+		fsl,pins = <
+			MX6SL_PAD_I2C2_SCL__I2C2_SCL	 0x4001f8b1
+			MX6SL_PAD_I2C2_SDA__I2C2_SDA	 0x4001f8b1
+		>;
+	};
+
+	pinctrl_i2c2_sleep: i2c2-sleepgrp {
+		fsl,pins = <
+			MX6SL_PAD_I2C2_SCL__I2C2_SCL	 0x400108b1
+			MX6SL_PAD_I2C2_SDA__I2C2_SDA	 0x400108b1
+		>;
+	};
+
+	pinctrl_i2c3: i2c3grp {
+		fsl,pins = <
+			MX6SL_PAD_REF_CLK_24M__I2C3_SCL  0x4001f8b1
+			MX6SL_PAD_REF_CLK_32K__I2C3_SDA  0x4001f8b1
+		>;
+	};
+
+	pinctrl_leds: ledsgrp {
+		fsl,pins = <
+			MX6SL_PAD_SD1_DAT6__GPIO5_IO07    0x17059
+			MX6SL_PAD_SD1_DAT7__GPIO5_IO10    0x17059
+			MX6SL_PAD_EPDC_SDCE2__GPIO1_IO29  0x17059
+		>;
+	};
+
+	pinctrl_ts: tsgrp {
+		fsl,pins = <
+			MX6SL_PAD_SD1_DAT2__GPIO5_IO13	0x110B0
+			MX6SL_PAD_SD1_DAT3__GPIO5_IO06	0x1B0B1
+		>;
+	};
+
+	pinctrl_uart1: uart1grp {
+		fsl,pins = <
+			MX6SL_PAD_UART1_TXD__UART1_TX_DATA 0x1b0b1
+			MX6SL_PAD_UART1_RXD__UART1_RX_DATA 0x1b0b1
+		>;
+	};
+
+	pinctrl_uart4: uart4grp {
+		fsl,pins = <
+			MX6SL_PAD_KEY_ROW6__UART4_TX_DATA 0x1b0b1
+			MX6SL_PAD_KEY_COL6__UART4_RX_DATA 0x1b0b1
+		>;
+	};
+
+	pinctrl_usbotg1: usbotg1grp {
+		fsl,pins = <
+			MX6SL_PAD_EPDC_PWRCOM__USB_OTG1_ID 0x17059
+		>;
+	};
+
+	pinctrl_usdhc2: usdhc2grp {
+		fsl,pins = <
+			MX6SL_PAD_SD2_CMD__SD2_CMD		0x17059
+			MX6SL_PAD_SD2_CLK__SD2_CLK		0x13059
+			MX6SL_PAD_SD2_DAT0__SD2_DATA0		0x17059
+			MX6SL_PAD_SD2_DAT1__SD2_DATA1		0x17059
+			MX6SL_PAD_SD2_DAT2__SD2_DATA2		0x17059
+			MX6SL_PAD_SD2_DAT3__SD2_DATA3		0x17059
+			MX6SL_PAD_SD2_DAT4__GPIO5_IO02		0x1b0b1
+		>;
+	};
+
+	pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
+		fsl,pins = <
+			MX6SL_PAD_SD2_CMD__SD2_CMD		0x170b9
+			MX6SL_PAD_SD2_CLK__SD2_CLK		0x130b9
+			MX6SL_PAD_SD2_DAT0__SD2_DATA0		0x170b9
+			MX6SL_PAD_SD2_DAT1__SD2_DATA1		0x170b9
+			MX6SL_PAD_SD2_DAT2__SD2_DATA2		0x170b9
+			MX6SL_PAD_SD2_DAT3__SD2_DATA3		0x170b9
+		>;
+	};
+
+	pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
+		fsl,pins = <
+			MX6SL_PAD_SD2_CMD__SD2_CMD		0x170f9
+			MX6SL_PAD_SD2_CLK__SD2_CLK		0x130f9
+			MX6SL_PAD_SD2_DAT0__SD2_DATA0		0x170f9
+			MX6SL_PAD_SD2_DAT1__SD2_DATA1		0x170f9
+			MX6SL_PAD_SD2_DAT2__SD2_DATA2		0x170f9
+			MX6SL_PAD_SD2_DAT3__SD2_DATA3		0x170f9
+		>;
+	};
+
+	pinctrl_usdhc2_sleep: usdhc2-sleepgrp {
+		fsl,pins = <
+			MX6SL_PAD_SD2_CMD__GPIO5_IO04		0x100f9
+			MX6SL_PAD_SD2_CLK__GPIO5_IO05		0x100f9
+			MX6SL_PAD_SD2_DAT0__GPIO5_IO01		0x100f9
+			MX6SL_PAD_SD2_DAT1__GPIO4_IO30		0x100f9
+			MX6SL_PAD_SD2_DAT2__GPIO5_IO03		0x100f9
+			MX6SL_PAD_SD2_DAT3__GPIO4_IO28		0x100f9
+		>;
+	};
+
+	pinctrl_usdhc3: usdhc3grp {
+		fsl,pins = <
+			MX6SL_PAD_SD3_CMD__SD3_CMD	0x11059
+			MX6SL_PAD_SD3_CLK__SD3_CLK	0x11059
+			MX6SL_PAD_SD3_DAT0__SD3_DATA0	0x11059
+			MX6SL_PAD_SD3_DAT1__SD3_DATA1	0x11059
+			MX6SL_PAD_SD3_DAT2__SD3_DATA2	0x11059
+			MX6SL_PAD_SD3_DAT3__SD3_DATA3	0x11059
+		>;
+	};
+
+	pinctrl_usdhc3_100mhz: usdhc3-100mhzgrp {
+		fsl,pins = <
+			MX6SL_PAD_SD3_CMD__SD3_CMD	0x170b9
+			MX6SL_PAD_SD3_CLK__SD3_CLK	0x170b9
+			MX6SL_PAD_SD3_DAT0__SD3_DATA0	0x170b9
+			MX6SL_PAD_SD3_DAT1__SD3_DATA1	0x170b9
+			MX6SL_PAD_SD3_DAT2__SD3_DATA2	0x170b9
+			MX6SL_PAD_SD3_DAT3__SD3_DATA3	0x170b9
+		>;
+	};
+
+	pinctrl_usdhc3_200mhz: usdhc3-200mhzgrp {
+		fsl,pins = <
+			MX6SL_PAD_SD3_CMD__SD3_CMD	0x170f9
+			MX6SL_PAD_SD3_CLK__SD3_CLK	0x170f9
+			MX6SL_PAD_SD3_DAT0__SD3_DATA0	0x170f9
+			MX6SL_PAD_SD3_DAT1__SD3_DATA1	0x170f9
+			MX6SL_PAD_SD3_DAT2__SD3_DATA2	0x170f9
+			MX6SL_PAD_SD3_DAT3__SD3_DATA3	0x170f9
+		>;
+	};
+
+	pinctrl_usdhc3_sleep: usdhc3-sleepgrp {
+		fsl,pins = <
+			MX6SL_PAD_SD3_CMD__GPIO5_IO21	0x100c1
+			MX6SL_PAD_SD3_CLK__GPIO5_IO18	0x100c1
+			MX6SL_PAD_SD3_DAT0__GPIO5_IO19	0x100c1
+			MX6SL_PAD_SD3_DAT1__GPIO5_IO20	0x100c1
+			MX6SL_PAD_SD3_DAT2__GPIO5_IO16	0x100c1
+			MX6SL_PAD_SD3_DAT3__GPIO5_IO17	0x100c1
+		>;
+	};
+
+	pinctrl_usdhc4: usdhc4grp {
+		fsl,pins = <
+			MX6SL_PAD_FEC_TX_CLK__SD4_CMD		0x17059
+			MX6SL_PAD_FEC_MDIO__SD4_CLK		0x13059
+			MX6SL_PAD_FEC_RX_ER__SD4_DATA0		0x17059
+			MX6SL_PAD_FEC_CRS_DV__SD4_DATA1		0x17059
+			MX6SL_PAD_FEC_RXD1__SD4_DATA2		0x17059
+			MX6SL_PAD_FEC_TXD0__SD4_DATA3		0x17059
+			MX6SL_PAD_FEC_MDC__SD4_DATA4		0x17059
+			MX6SL_PAD_FEC_RXD0__SD4_DATA5		0x17059
+			MX6SL_PAD_FEC_TX_EN__SD4_DATA6		0x17059
+			MX6SL_PAD_FEC_TXD1__SD4_DATA7		0x17059
+			MX6SL_PAD_FEC_REF_CLK__SD4_RESET	0x17068
+		>;
+	};
+
+	pinctrl_usdhc4_100mhz: usdhc4-100mhzgrp {
+		fsl,pins = <
+			MX6SL_PAD_FEC_TX_CLK__SD4_CMD		0x170b9
+			MX6SL_PAD_FEC_MDIO__SD4_CLK		0x130b9
+			MX6SL_PAD_FEC_RX_ER__SD4_DATA0		0x170b9
+			MX6SL_PAD_FEC_CRS_DV__SD4_DATA1		0x170b9
+			MX6SL_PAD_FEC_RXD1__SD4_DATA2		0x170b9
+			MX6SL_PAD_FEC_TXD0__SD4_DATA3		0x170b9
+			MX6SL_PAD_FEC_MDC__SD4_DATA4		0x170b9
+			MX6SL_PAD_FEC_RXD0__SD4_DATA5		0x170b9
+			MX6SL_PAD_FEC_TX_EN__SD4_DATA6		0x170b9
+			MX6SL_PAD_FEC_TXD1__SD4_DATA7		0x170b9
+		>;
+	};
+
+	pinctrl_usdhc4_200mhz: usdhc4-200mhzgrp {
+		fsl,pins = <
+			MX6SL_PAD_FEC_TX_CLK__SD4_CMD		0x170f9
+			MX6SL_PAD_FEC_MDIO__SD4_CLK		0x130f9
+			MX6SL_PAD_FEC_RX_ER__SD4_DATA0		0x170f9
+			MX6SL_PAD_FEC_CRS_DV__SD4_DATA1		0x170f9
+			MX6SL_PAD_FEC_RXD1__SD4_DATA2		0x170f9
+			MX6SL_PAD_FEC_TXD0__SD4_DATA3		0x170f9
+			MX6SL_PAD_FEC_MDC__SD4_DATA4		0x170f9
+			MX6SL_PAD_FEC_RXD0__SD4_DATA5		0x170f9
+			MX6SL_PAD_FEC_TX_EN__SD4_DATA6		0x170f9
+			MX6SL_PAD_FEC_TXD1__SD4_DATA7		0x170f9
+		>;
+	};
+
+	pinctrl_usdhc4_sleep: usdhc4-sleepgrp {
+		fsl,pins = <
+			MX6SL_PAD_FEC_TX_CLK__GPIO4_IO21	0x100c1
+			MX6SL_PAD_FEC_MDIO__GPIO4_IO20		0x100c1
+			MX6SL_PAD_FEC_RX_ER__GPIO4_IO19		0x100c1
+			MX6SL_PAD_FEC_CRS_DV__GPIO4_IO25	0x100c1
+			MX6SL_PAD_FEC_RXD1__GPIO4_IO18		0x100c1
+			MX6SL_PAD_FEC_TXD0__GPIO4_IO24		0x100c1
+			MX6SL_PAD_FEC_MDC__GPIO4_IO23		0x100c1
+			MX6SL_PAD_FEC_RXD0__GPIO4_IO17		0x100c1
+			MX6SL_PAD_FEC_TX_EN__GPIO4_IO22		0x100c1
+			MX6SL_PAD_FEC_TXD1__GPIO4_IO16		0x100c1
+		>;
+	};
+
+	pinctrl_wifi_power: wifi-powergrp {
+		fsl,pins = <
+			MX6SL_PAD_SD2_DAT6__GPIO4_IO29	0x10059	/* WIFI_3V3_ON */
+		>;
+	};
+
+	pinctrl_wifi_reset: wifi-resetgrp {
+		fsl,pins = <
+			MX6SL_PAD_SD2_DAT7__GPIO5_IO00	0x10059	/* WIFI_RST */
+		>;
+	};
+};