imx6ull-emmc: add overlays

Add following overlays:
 - Parallel RGB/VGA support
 - Atmel MXT TS for boards with Capacitive Touch Connector
 - Atmel MXT TS for Capacitive Touch Adapter
 - Fusion F0710A TS for boards with Capacitive Touch Connector
 - Fusion F0710A TS for Capacitive Touch Adapter
 - Toradex 7" touchscreen lt161010
 - Toradex 10" touchscreen lt170410
 - Toradex 7" resistive touchscreen ad7879

Related-to: ELB-4065
Related-to: ELB-4080

Signed-off-by: Oleksii Bidnichenko <oleksii.bidnichenko@toradex.com>

9 files changed, 307 insertions, 0 deletions

diff --git a/overlays/Makefile b/overlays/Makefile
index f3af6cb..0b1533f 100644
--- a/overlays/Makefile
+++ b/overlays/Makefile
@@ -54,6 +54,14 @@ dtb-y += colibri-imx6_lcd-lt161010_overlay.dtbo
 dtb-y += colibri-imx6_lcd-lt170410_overlay.dtbo
 dtb-y += colibri-imx6_lcd-vga_overlay.dtbo
 dtb-y += colibri-imx6_stmpe-ts_overlay.dtbo
+dtb-y += colibri-imx6ull_ad7879_overlay.dtbo
+dtb-y += colibri-imx6ull_atmel-mxt-adapter_overlay.dtbo
+dtb-y += colibri-imx6ull_atmel-mxt-connector_overlay.dtbo
+dtb-y += colibri-imx6ull_fusion-f0710a-adapter_overlay.dtbo
+dtb-y += colibri-imx6ull_fusion-f0710a-connector_overlay.dtbo
+dtb-y += colibri-imx6ull_lcd-lt161010_overlay.dtbo
+dtb-y += colibri-imx6ull_lcd-lt170410_overlay.dtbo
+dtb-y += colibri-imx6ull_parallel-rgb_vga_overlay.dtbo
 dtb-y += colibri-imx7_ad7879_overlay.dtbo
 dtb-y += colibri-imx7_atmel-mxt-adapter_overlay.dtbo
 dtb-y += colibri-imx7_atmel-mxt-connector_overlay.dtbo
diff --git a/overlays/colibri-imx6ull_ad7879_overlay.dts b/overlays/colibri-imx6ull_ad7879_overlay.dts
new file mode 100644
index 0000000..c109926
--- /dev/null
+++ b/overlays/colibri-imx6ull_ad7879_overlay.dts
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2021 Toradex
+ */
+
+// Enable the resistive touch controller (AD7879) on the Colibri iMX6ULL.
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "toradex,colibri-imx6ull-emmc";
+};
+
+&ad7879_ts {
+	status = "okay";
+};
+
+&i2c2 {
+	/* Was disabled because ad7879 is a single I2C slave */
+	status = "okay";
+};
diff --git a/overlays/colibri-imx6ull_atmel-mxt-adapter_overlay.dts b/overlays/colibri-imx6ull_atmel-mxt-adapter_overlay.dts
new file mode 100644
index 0000000..ee1c0e2
--- /dev/null
+++ b/overlays/colibri-imx6ull_atmel-mxt-adapter_overlay.dts
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2021 Toradex
+ */
+
+// Atmel MXT touchscreen for the 7inch and 10inch display orderable at Toradex.
+// Compatible with a Capacitive Touch Adapter.
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	compatible = "toradex,colibri-imx6ull-emmc";
+};
+
+&atmel_mxt_ts {
+	pinctrl-0 = <&pinctrl_atmel_adap>;
+	interrupt-parent = <&gpio4>;
+	interrupts = <16 IRQ_TYPE_EDGE_FALLING>;   /* SODIMM 28, INT */
+	reset-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>; /* SODIMM 30, RST */
+	status = "okay";
+};
+
+&fusion_f0710a {
+	status = "disabled";
+};
+
+&i2c1 {
+	status = "okay";
+};
+
+/* PWM <B> */
+&pwm5 {
+	/* Pin already used by atmel_mxt_ts touchscreen */
+	status = "disabled";
+};
+
+/* PWM <C> */
+&pwm6 {
+	/* Pin already used by atmel_mxt_ts touchscreen */
+	status = "disabled";
+};
+
diff --git a/overlays/colibri-imx6ull_atmel-mxt-connector_overlay.dts b/overlays/colibri-imx6ull_atmel-mxt-connector_overlay.dts
new file mode 100644
index 0000000..6772e79
--- /dev/null
+++ b/overlays/colibri-imx6ull_atmel-mxt-connector_overlay.dts
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2021 Toradex
+ */
+
+// Atmel touchscreen for the 7inch and 10inch capacitive display orderable at
+// Toradex. Compatible with a Capacitive Touch Connector.
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "toradex,colibri-imx6ull-emmc";
+};
+
+&atmel_mxt_ts {
+	status = "okay";
+};
+
+&fusion_f0710a {
+	status = "disabled";
+};
+
+&i2c1 {
+	status = "okay";
+};
+
+/* PWM <B> */
+&pwm5 {
+	/* Pin already used by atmel_mxt_ts touchscreen */
+	status = "disabled";
+};
+
+/* PWM <C> */
+&pwm6 {
+	/* Pin already used by atmel_mxt_ts touchscreen */
+	status = "disabled";
+};
+
diff --git a/overlays/colibri-imx6ull_fusion-f0710a-adapter_overlay.dts b/overlays/colibri-imx6ull_fusion-f0710a-adapter_overlay.dts
new file mode 100644
index 0000000..3480e05
--- /dev/null
+++ b/overlays/colibri-imx6ull_fusion-f0710a-adapter_overlay.dts
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2021 Toradex
+ */
+
+// Fusion F0710A touchscreen. Compatible with a Capacitive Touch Adapter.
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "toradex,colibri-imx6ull-emmc";
+};
+
+&atmel_mxt_ts {
+	status = "disabled";
+};
+
+&fusion_f0710a {
+	status = "okay";
+};
+
+&i2c1 {
+	status = "okay";
+};
diff --git a/overlays/colibri-imx6ull_fusion-f0710a-connector_overlay.dts b/overlays/colibri-imx6ull_fusion-f0710a-connector_overlay.dts
new file mode 100644
index 0000000..172df61
--- /dev/null
+++ b/overlays/colibri-imx6ull_fusion-f0710a-connector_overlay.dts
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2021 Toradex
+ */
+
+// Fusion F0710A touchscreen. Compatible with a Capacitive Touch Connector.
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	compatible = "toradex,colibri-imx6ull-emmc";
+};
+
+&atmel_mxt_ts {
+	status = "disabled";
+};
+
+&fusion_f0710a {
+	pinctrl-0 = <&pinctrl_atmel_conn>;
+	gpios = <&gpio5 4 GPIO_ACTIVE_HIGH /* SODIMM 107, INT */
+		 &gpio1 10 GPIO_ACTIVE_LOW /* SODIMM 106, RST */
+		>;
+	status = "okay";
+};
+
+&i2c1 {
+	status = "okay";
+};
diff --git a/overlays/colibri-imx6ull_lcd-lt161010_overlay.dts b/overlays/colibri-imx6ull_lcd-lt161010_overlay.dts
new file mode 100644
index 0000000..2092d66
--- /dev/null
+++ b/overlays/colibri-imx6ull_lcd-lt161010_overlay.dts
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2021 Toradex
+ */
+
+// Turn on the parallel RGB interface with setting for 7" Displays on the
+// Colibri iMX6ULL.
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "toradex,colibri-imx6ull-emmc";
+};
+
+&backlight {
+	status = "okay";
+};
+
+&display0 {
+	display-timings {
+		native-mode = <&timing_wvga2>;
+	};
+};
+
+&lcdif {
+	status = "okay";
+};
+
+&pwm4 {
+	status = "okay";
+};
diff --git a/overlays/colibri-imx6ull_lcd-lt170410_overlay.dts b/overlays/colibri-imx6ull_lcd-lt170410_overlay.dts
new file mode 100644
index 0000000..936a24d
--- /dev/null
+++ b/overlays/colibri-imx6ull_lcd-lt170410_overlay.dts
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2021 Toradex
+ */
+
+// Enable the LCDIF aka parallel RGB interface and the LVDS tranceiver on Iris
+// v2.0, tuning settings for the capacitive touch display 10 inch LVDS on the
+// Colibri iMX6ULL.
+
+#include <dt-bindings/gpio/gpio.h>
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "toradex,colibri-imx6ull-emmc";
+};
+
+&backlight {
+	status = "okay";
+};
+
+&can1 {
+	// Disabled due to the SODIMM 55 and 63 pins overlapping
+	status = "disabled";
+};
+
+&display0 {
+	display-timings {
+		native-mode = <&timing_wxga>;
+	};
+};
+
+&gpio1 {
+	// This turns the LVDS transceiver on
+	LVDS_PWRDWN {
+		gpio-hog;
+		gpios = <14 GPIO_ACTIVE_HIGH>; /* SODIMM 99 */
+		line-name = "LVDS_PWRDWN";
+		output-high;
+	};
+};
+
+&gpio2 {
+	// This switches the LVDS transceiver to the single-channel output mode
+	LVDS_MODE {
+		gpio-hog;
+		gpios = <0 GPIO_ACTIVE_HIGH>; /* SODIMM 55 */
+		line-name = "LVDS_MODE";
+		output-high;
+	};
+
+	// This switches the LVDS transceiver to the 24-bit RGB mode
+	LVDS_RGB_MODE {
+		gpio-hog;
+		gpios = <1 GPIO_ACTIVE_HIGH>; /* SODIMM 63 */
+		line-name = "LVDS_RGB_MODE";
+		output-low;
+	};
+};
+
+&gpio5 {
+	// This switches the LVDS transceiver to VESA color mapping mode
+	LVDS_COLOR_MAP {
+		gpio-hog;
+		gpios = <3 GPIO_ACTIVE_HIGH>; /* SODIMM 95 */
+		line-name = "LVDS_COLOR_MAP";
+		output-low;
+	};
+};
+
+&lcdif {
+	status = "okay";
+};
+
+&pwm4 {
+	status = "okay";
+};
diff --git a/overlays/colibri-imx6ull_parallel-rgb_vga_overlay.dts b/overlays/colibri-imx6ull_parallel-rgb_vga_overlay.dts
new file mode 100644
index 0000000..c636183
--- /dev/null
+++ b/overlays/colibri-imx6ull_parallel-rgb_vga_overlay.dts
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2021 Toradex
+ */
+
+// Enable the parallel RGB interface on the Colibri iMX6ULL. Make sure to also
+// select a valid display configuration.
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "toradex,colibri-imx6ull-emmc";
+};
+
+&backlight {
+	status = "okay";
+};
+
+&lcdif {
+	status = "okay";
+};
+
+&pwm4 {
+	status = "okay";
+};