ARM: dts: imx7-colibri: add support for Toradex Aster carrier board

Add support for the Toradex Aster carrier board.

Follow the usual hierarchic include model, maintaining shared
configuration imx7-colibri-aster.dtsi.

Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/Makefile

@@ -610,6 +610,8 @@ dtb-$(CONFIG_SOC_IMX6UL) += \
 	imx6ulz-14x14-evk.dtb
 dtb-$(CONFIG_SOC_IMX7D) += \
 	imx7d-cl-som-imx7.dtb \
+	imx7d-colibri-aster.dtb \
+	imx7d-colibri-emmc-aster.dtb \
 	imx7d-colibri-emmc-eval-v3.dtb \
 	imx7d-colibri-eval-v3.dtb \
 	imx7d-mba7.dtb \
@@ -623,6 +625,7 @@ dtb-$(CONFIG_SOC_IMX7D) += \
 	imx7d-sdb-sht11.dtb \
 	imx7d-zii-rmu2.dtb \
 	imx7d-zii-rpu2.dtb \
+	imx7s-colibri-aster.dtb \
 	imx7s-colibri-eval-v3.dtb \
 	imx7s-mba7.dtb \
 	imx7s-warp.dtb

arch/arm/boot/dts/imx7-colibri-aster.dtsi

@@ -0,0 +1,169 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright 2017-2020 Toradex AG
+ *
+ */
+
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/pwm/pwm.h>
+
+/ {
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpiokeys>;
+
+		power {
+			label = "Wake-Up";
+			gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>;
+			linux,code = <KEY_WAKEUP>;
+			debounce-interval = <10>;
+			wakeup-source;
+		};
+	};
+
+	panel: panel {
+		compatible = "edt,et057090dhu";
+		backlight = <&bl>;
+		power-supply = <&reg_3v3>;
+
+		port {
+			panel_in: endpoint {
+				remote-endpoint = <&lcdif_out>;
+			};
+		};
+	};
+
+	reg_3v3: regulator-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "3.3V";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	reg_5v0: regulator-5v0 {
+		compatible = "regulator-fixed";
+		regulator-name = "5V";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
+	reg_usbh_vbus: regulator-usbh-vbus {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_usbh_reg>;
+		regulator-name = "VCC_USB[1-4]";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		gpio = <&gpio4 7 GPIO_ACTIVE_LOW>;
+		vin-supply = <&reg_5v0>;
+	};
+};
+
+&adc1 {
+	status = "okay";
+};
+
+/*
+ * ADC2 is not available on the Aster board and
+ * conflicts with AD7879 resistive touchscreen.
+ */
+&adc2 {
+	status = "disabled";
+};
+
+&bl {
+	brightness-levels = <0 4 8 16 32 64 128 255>;
+	default-brightness-level = <6>;
+	power-supply = <&reg_3v3>;
+	status = "okay";
+};
+
+&fec1 {
+	status = "okay";
+};
+
+&i2c4 {
+	status = "okay";
+
+	/* Microchip/Atmel maxtouch controller */
+	touchscreen@4a {
+		compatible = "atmel,maxtouch";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpiotouch>;
+		reg = <0x4a>;
+		interrupt-parent = <&gpio2>;
+		interrupts = <15 IRQ_TYPE_EDGE_FALLING>;	/* SODIMM 107 */
+		reset-gpios = <&gpio2 28 GPIO_ACTIVE_HIGH>;	/* SODIMM 106 */
+	};
+
+	/* M41T0M6 real time clock on carrier board */
+	rtc: m41t0m6@68 {
+		compatible = "st,m41t0";
+		reg = <0x68>;
+	};
+};
+
+&iomuxc {
+	pinctrl_gpiotouch: touchgpios {
+		fsl,pins = <
+			MX7D_PAD_EPDC_DATA15__GPIO2_IO15        0x74
+			MX7D_PAD_EPDC_BDR0__GPIO2_IO28          0x14
+		>;
+	};
+};
+
+&lcdif {
+	status = "okay";
+
+	port {
+		lcdif_out: endpoint {
+			remote-endpoint = <&panel_in>;
+		};
+	};
+};
+
+&pwm1 {
+	status = "okay";
+};
+
+&pwm2 {
+	status = "okay";
+};
+
+&pwm3 {
+	status = "okay";
+};
+
+&pwm4 {
+	status = "okay";
+};
+
+&uart1 {
+	status = "okay";
+};
+
+&uart2 {
+	status = "okay";
+};
+
+&uart3 {
+	status = "okay";
+};
+
+&usbotg1 {
+	status = "okay";
+};
+
+&usdhc1 {
+	keep-power-in-suspend;
+	no-1-8-v;
+	wakeup-source;
+	vmmc-supply = <&reg_3v3>;
+	status = "okay";
+};

arch/arm/boot/dts/imx7-colibri.dtsi

@@ -499,7 +499,6 @@
 			MX7D_PAD_EPDC_DATA13__GPIO2_IO13	0x14 /* SODIMM 95 */
 			MX7D_PAD_ENET1_RGMII_TXC__GPIO7_IO11	0x14 /* SODIMM 99 */
 			MX7D_PAD_EPDC_DATA10__GPIO2_IO10	0x74 /* SODIMM 105 */
-			MX7D_PAD_EPDC_DATA15__GPIO2_IO15	0x74 /* SODIMM 107 */
 			MX7D_PAD_EPDC_DATA00__GPIO2_IO0		0x14 /* SODIMM 111 */
 			MX7D_PAD_EPDC_DATA01__GPIO2_IO1		0x14 /* SODIMM 113 */
 			MX7D_PAD_EPDC_DATA02__GPIO2_IO2		0x14 /* SODIMM 115 */
@@ -516,7 +515,6 @@
 			MX7D_PAD_SD2_DATA2__GPIO5_IO16		0x14 /* SODIMM 100 */
 			MX7D_PAD_SD2_DATA3__GPIO5_IO17		0x14 /* SODIMM 102 */
 			MX7D_PAD_EPDC_GDSP__GPIO2_IO27		0x14 /* SODIMM 104 */
-			MX7D_PAD_EPDC_BDR0__GPIO2_IO28		0x74 /* SODIMM 106 */
 			MX7D_PAD_EPDC_BDR1__GPIO2_IO29		0x14 /* SODIMM 110 */
 			MX7D_PAD_EPDC_PWR_COM__GPIO2_IO30	0x14 /* SODIMM 112 */
 			MX7D_PAD_EPDC_SDCLK__GPIO2_IO16		0x14 /* SODIMM 114 */

arch/arm/boot/dts/imx7d-colibri-aster.dts

@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright 2017-2020 Toradex AG
+ *
+ */
+
+/dts-v1/;
+#include "imx7d-colibri.dtsi"
+#include "imx7-colibri-aster.dtsi"
+
+/ {
+	model = "Toradex Colibri iMX7D on Aster Carrier Board";
+	compatible = "toradex,colibri-imx7d-aster", "toradex,colibri-imx7d",
+		     "fsl,imx7d";
+};
+
+&usbotg2 {
+	vbus-supply = <&reg_usbh_vbus>;
+	status = "okay";
+};

arch/arm/boot/dts/imx7d-colibri-emmc-aster.dts

@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright 2017-2020 Toradex AG
+ *
+ */
+
+/dts-v1/;
+#include "imx7d-colibri-emmc.dtsi"
+#include "imx7-colibri-aster.dtsi"
+
+/ {
+	model = "Toradex Colibri iMX7D 1GB (eMMC) on Aster Carrier Board";
+	compatible = "toradex,colibri-imx7d-emmc-aster",
+		     "toradex,colibri-imx7d-emmc", "fsl,imx7d";
+};
+
+&usbotg2 {
+	vbus-supply = <&reg_usbh_vbus>;
+	status = "okay";
+};

arch/arm/boot/dts/imx7s-colibri-aster.dts

@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright 2017-2020 Toradex AG
+ *
+ */
+
+/dts-v1/;
+#include "imx7s-colibri.dtsi"
+#include "imx7-colibri-aster.dtsi"
+
+/ {
+	model = "Toradex Colibri iMX7S on Aster Carrier Board";
+	compatible = "toradex,colibri-imx7s-aster", "toradex,colibri-imx7s",
+		     "fsl,imx7s";
+};