This patch adds support for the emtrion GmbH emCON-MX6 modules.
They are available with imx.6 Solo, Dual-Lite, Dual and Quad
equipped with Memory from 512MB to 2GB (configured by U-Boot).

Our default developer-Kit ships with the Avari baseboard and the
EDT ETM0700G0BDH6 Display (imx6[q|dl]-emcon-avari).

The devicetree is split into the common part providing all module
components and the basic support for all SoC versions
(imx6qdl-emcon.dtsi) and parts which are i.mx6 S|DL and D|Q relevant.
Finally the support for the avari baseboard in the developer-kit
configuration is provided by the emcon-avari dts files.

Signed-off-by: Jan Tuerk <redacted>
---
 arch/arm/boot/dts/Makefile                 |   2 +
 arch/arm/boot/dts/imx6dl-emcon-avari.dts   |  14 +
 arch/arm/boot/dts/imx6q-emcon-avari.dts    |  14 +
 arch/arm/boot/dts/imx6qdl-emcon-avari.dtsi | 177 +++++
 arch/arm/boot/dts/imx6qdl-emcon.dtsi       | 832 +++++++++++++++++++++
 5 files changed, 1039 insertions(+)
 create mode 100644 arch/arm/boot/dts/imx6dl-emcon-avari.dts
 create mode 100644 arch/arm/boot/dts/imx6q-emcon-avari.dts
 create mode 100644 arch/arm/boot/dts/imx6qdl-emcon-avari.dtsi
 create mode 100644 arch/arm/boot/dts/imx6qdl-emcon.dtsi

Changes in v6: 
  - none (PATCH 4/4 - fix typo)

Changes for v5:
  - rename boardID -> boardid.
  - remove Author info.
  - rename regulators from reg_xxx to reg-xxx.
  - delete mx6q/mx6dl specific camera pinmux and the corresponding file.
  - delete defaults in hoggrp.
  - rename parallel-display to display and panel to lcd.
  - rename rtc label to ds1307.
  - add alias for rtc0 pointing to ds1307.
  - move memory and stdout from the baseboard to the module description.
  - reviewed the pinmux names for more consitent nameing.
    => pin-groups -> postfix grp (..audmux -> audmuxgrp)
    => single-pin -> non-postfix (..emcon_gpio1)
  - rename label wdt to watchdog
  - coding-style 
    -> remove end of file new-lines
    -> clean-up new-lines between nodes
    -> re-align brightness values for the backlights.

Unchanged in v5:
  - pinctrl for emcon_gpio0..8, emcon_irqa..c, etc. => they're used 
    with different functions for different (customer) baseboards. Having
    them in a single pinctrl it could only be referenced in a single
    entity.
  - keep "unused" pinctrls in the module-description. They're matching 
    the connector spec and are intended to be defined for upcoming or
    customer baseboards without defining them again and again. 

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index b5bd3de87c33..f7d1a2bd28ef 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile

@@ -394,6 +394,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
 	imx6dl-cubox-i-emmc-som-v15.dtb \
 	imx6dl-cubox-i-som-v15.dtb \
 	imx6dl-dfi-fs700-m60.dtb \
+	imx6dl-emcon-avari.dtb \
 	imx6dl-gw51xx.dtb \
 	imx6dl-gw52xx.dtb \
 	imx6dl-gw53xx.dtb \

@@ -458,6 +459,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
 	imx6q-display5-tianma-tm070-1280x768.dtb \
 	imx6q-dmo-edmqmx6.dtb \
 	imx6q-dms-ba16.dtb \
+	imx6q-emcon-avari.dtb \
 	imx6q-evi.dtb \
 	imx6q-gk802.dtb \
 	imx6q-gw51xx.dtb \

diff --git a/arch/arm/boot/dts/imx6dl-emcon-avari.dts b/arch/arm/boot/dts/imx6dl-emcon-avari.dts
new file mode 100644
index 000000000000..46eb7c2c7344
--- /dev/null
+++ b/arch/arm/boot/dts/imx6dl-emcon-avari.dts

@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: (GPL-2.0 or MIT)
+/*
+ * Copyright (C) 2018 emtrion GmbH
+ */
+
+/dts-v1/;
+#include "imx6dl.dtsi"
+#include "imx6qdl-emcon.dtsi"
+#include "imx6qdl-emcon-avari.dtsi"
+
+/ {
+	model = "emtrion SoM emCON-MX6 Solo/Dual-Lite Avari";
+	compatible = "emtrion,emcon-mx6-avari", "fsl,imx6dl";
+};

diff --git a/arch/arm/boot/dts/imx6q-emcon-avari.dts b/arch/arm/boot/dts/imx6q-emcon-avari.dts
new file mode 100644
index 000000000000..fe719e0f8cae
--- /dev/null
+++ b/arch/arm/boot/dts/imx6q-emcon-avari.dts

@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: (GPL-2.0 or MIT)
+/*
+ * Copyright (C) 2018 emtrion GmbH
+ */
+
+/dts-v1/;
+#include "imx6q.dtsi"
+#include "imx6qdl-emcon.dtsi"
+#include "imx6qdl-emcon-avari.dtsi"
+
+/ {
+	model = "emtrion SoM emCON-MX6 Dual/Quad on Avari";
+	compatible = "emtrion,emcon-mx6-avari", "fsl,imx6q";
+};

diff --git a/arch/arm/boot/dts/imx6qdl-emcon-avari.dtsi b/arch/arm/boot/dts/imx6qdl-emcon-avari.dtsi
new file mode 100644
index 000000000000..b6bbb30ca538
--- /dev/null
+++ b/arch/arm/boot/dts/imx6qdl-emcon-avari.dtsi

@@ -0,0 +1,177 @@
+// SPDX-License-Identifier: (GPL-2.0 or MIT)
+/*
+ * Copyright (C) 2018 emtrion GmbH
+ */
+
+/ {
+	aliases {
+		mmc0 = &usdhc3;
+		mmc2 = &usdhc1;
+		mmc1 = &usdhc2;
+		mmc3 = &usdhc4;
+		boardid = &boardid;

+		compatible = "edt,edt-ft5406";
+		reg = <0x38>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_irq_touch2 &pinctrl_emcon_gpio4>;
+		interrupt-parent = <&gpio6>;
+		interrupts = <31 IRQ_TYPE_EDGE_FALLING>;
+		wake-gpios = <&gpio2 3 GPIO_ACTIVE_HIGH>;
+		wakeup-source;
+	};
+};
+
+&pcie {
+	status = "okay";
+};
+
+&rgb_encoder {
+	status = "okay";
+};
+
+&rgb_panel {
+	compatible = "edt,etm0700g0bdh6";
+	status = "okay";
+};
+
+&ssi2 {
+	status = "okay";
+};
+
+&uart2 {
+	status = "okay";
+	uart-has-rtscts;
+};
+
+&uart3 {
+	status = "okay";
+};
+
+&uart4 {
+	status = "okay";
+};
+
+&uart5 {
+	status = "okay";
+};
+
+&usbh1 {
+	status = "okay";
+};
+
+&usbotg {
+	status = "okay";
+};
+
+&usdhc1 {
+	status = "okay";
+};

diff --git a/arch/arm/boot/dts/imx6qdl-emcon.dtsi b/arch/arm/boot/dts/imx6qdl-emcon.dtsi
new file mode 100644
index 000000000000..4958ae3b924c
--- /dev/null
+++ b/arch/arm/boot/dts/imx6qdl-emcon.dtsi

@@ -0,0 +1,832 @@
+// SPDX-License-Identifier: (GPL-2.0 or MIT)
+/*
+ * Copyright (C) 2018 emtrion GmbH
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pwm/pwm.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+
+	model = "emtrion SoM emCON-MX6";
+	compatible = "emtrion,emcon-mx6";
+
+	aliases {
+		mmc0 = &usdhc3;
+		mmc2 = &usdhc1;
+		mmc1 = &usdhc2;
+		rtc0 = &ds1307;
+	};
+
+	chosen {
+		stdout-path = &uart1;
+	};
+
+	memory at 10000000 {
+		reg = <0x10000000 0x40000000>;
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_emcon_wake>;
+
+		wake {
+			label = "Wake";
+			linux,code = <KEY_WAKEUP>;
+			gpios = <&gpio3 2 GPIO_ACTIVE_LOW>;
+			wakeup-source;
+		};
+	};
+
+	som_leds: leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_som_leds>;
+
+		green {
+			label = "som:green";
+			gpios = <&gpio3 0 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+			default-state = "on";
+		};
+
+		red {
+			label = "som:red";
+			gpios = <&gpio3 1 GPIO_ACTIVE_LOW>;
+			default-state = "keep";
+		};
+
+	};
+
+	lvds_backlight: lvds-backlight {
+		compatible = "pwm-backlight";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_lvds_bl>;
+		enable-gpios = <&gpio6 9 GPIO_ACTIVE_HIGH>;
+		pwms = <&pwm1 0 50000>;
+		brightness-levels = <
+			0 4 8 16 32 64 80 96 112
+			128 144 160 176 250
+		>;
+		default-brightness-level = <13>;
+		status = "okay";
+	};
+
+	pwm_fan: pwm-fan {
+		compatible = "pwm-fan";
+		cooling-min-state = <0>;
+		cooling-max-state = <4>;
+		#cooling-cells = <2>;
+		pwms = <&pwm4 0 50000>;
+		cooling-levels = <0 64 127 191 255>;
+		status = "disabled";
+	};
+
+
+	rgb_encoder: display {
+		compatible = "fsl,imx-parallel-display";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_rgb24_display>;
+		status = "disabled";
+
+		port at 0 {
+			reg = <0>;
+
+			rgb_encoder_in: endpoint {
+				remote-endpoint = <&ipu1_di0_disp0>;
+			};
+		};
+
+		port at 1 {
+			reg = <1>;
+
+			rgb_encoder_out: endpoint {
+				remote-endpoint = <&rgb_panel_in>;
+			};
+		};
+	};
+
+	rgb_panel: lcd {
+		backlight = <&rgb_backlight>;
+		power-supply = <&reg_parallel_disp>;
+
+		port {
+			rgb_panel_in: endpoint {
+				remote-endpoint = <&rgb_encoder_out>;
+			};
+		};
+	};
+
+	reg_parallel_disp: reg-parallel-display {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_rgb_bl_en>;
+		regulator-name = "LCD-Supply";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		gpio = <&gpio7 9 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	reg_lvds_disp: reg-lvds-display {
+		compatible = "regulator-fixed";
+		regulator-name = "LVDS-Supply";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		gpio = <&gpio7 10 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	rgb_backlight: rgb-backlight {
+		compatible = "pwm-backlight";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_rgb_bl>;
+		enable-gpios = <&gpio6 8 GPIO_ACTIVE_HIGH>;
+		pwms = <&pwm3 0 5000000>;
+		brightness-levels = <
+			250 176 160 144 128 112
+			96 80 64 48 32 16 8 1
+		>;
+		default-brightness-level = <13>;
+		status = "okay";
+	};
+};
+
+&can1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_can1>;
+};
+
+&can2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_can2>;
+};
+
+&ecspi2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi2>;
+	cs-gpios = <&gpio2 25 GPIO_ACTIVE_HIGH>,
+	<&gpio2 26 GPIO_ACTIVE_HIGH>;