[PATCH 4/7] ARM: dts: imx6q-apalis: Add Toradex Capacitive Touch Display 7" Parallel

[Leonardo Costa <leoreis.costa@gmail.com>]

From: Leonardo Costa <leonardo.costa@toradex.com>

Add a device tree overlay for the Capacitive Touch Display 7" Parallel
on the Apalis iMX6 parallel RGB LCD interface.

The panel is a LogicTechno LT161010-2NHC 7" WVGA TFT Transmissive LCD
and the touch input is provided by an Atmel MaxTouch capacitive touch
controller.

The touch controller is connected to the Toradex 10-way Capacitive Touch
Interface connector available on Ixora carrier board and Apalis
Evaluation Board.

The overlay is also combined with the Apalis iMX6 V1.2 Ixora Carrier
Board V1.2 device tree to provide a ready-to-use DTB.

Link: https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-7inch-parallel/
Signed-off-by: Leonardo Costa <leonardo.costa@toradex.com>
---
 arch/arm/boot/dts/nxp/imx/Makefile            |  6 ++++
 ...apalis-panel-cap-touch-7inch-parallel.dtso | 34 +++++++++++++++++++
 2 files changed, 40 insertions(+)
 create mode 100644 arch/arm/boot/dts/nxp/imx/imx6q-apalis-panel-cap-touch-7inch-parallel.dtso

diff --git a/arch/arm/boot/dts/nxp/imx/Makefile b/arch/arm/boot/dts/nxp/imx/Makefile
index 23fcc80d7f309..5f35771cc3626 100644
--- a/arch/arm/boot/dts/nxp/imx/Makefile
+++ b/arch/arm/boot/dts/nxp/imx/Makefile
@@ -103,6 +103,10 @@ imx6q-apalis-v1.2-ixora-v1.2-panel-cap-touch-10inch-lvds-dtbs := \
 	imx6q-apalis-v1.2-ixora-v1.2.dtb \
 	imx6q-apalis-panel-cap-touch-10inch-lvds.dtbo
 
+imx6q-apalis-v1.2-ixora-v1.2-panel-cap-touch-7inch-parallel-dtbs := \
+	imx6q-apalis-v1.2-ixora-v1.2.dtb \
+	imx6q-apalis-panel-cap-touch-7inch-parallel.dtbo
+
 imx6qdl-dhcom-pdk2-overlay-497-200-x12-dtbs := \
 	imx6q-dhcom-pdk2.dtb \
 	imx6qdl-dhcom-pdk2-overlay-497-200-x12.dtbo
@@ -238,6 +242,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
 	imx6q-apalis-ixora-v1.2.dtb \
 	imx6q-apalis-ixora-v1.2-hdmi.dtb \
 	imx6q-apalis-panel-cap-touch-10inch-lvds.dtbo \
+	imx6q-apalis-panel-cap-touch-7inch-parallel.dtbo \
 	imx6q-apalis-v1.2-eval.dtb \
 	imx6q-apalis-v1.2-eval-hdmi.dtb \
 	imx6q-apalis-v1.2-eval-v1.2.dtb \
@@ -249,6 +254,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
 	imx6q-apalis-v1.2-ixora-v1.2.dtb \
 	imx6q-apalis-v1.2-ixora-v1.2-hdmi.dtb \
 	imx6q-apalis-v1.2-ixora-v1.2-panel-cap-touch-10inch-lvds.dtb \
+	imx6q-apalis-v1.2-ixora-v1.2-panel-cap-touch-7inch-parallel.dtb \
 	imx6q-apf6dev.dtb \
 	imx6q-arm2.dtb \
 	imx6q-b450v3.dtb \
diff --git a/arch/arm/boot/dts/nxp/imx/imx6q-apalis-panel-cap-touch-7inch-parallel.dtso b/arch/arm/boot/dts/nxp/imx/imx6q-apalis-panel-cap-touch-7inch-parallel.dtso
new file mode 100644
index 0000000000000..f04516e3c5cfa
--- /dev/null
+++ b/arch/arm/boot/dts/nxp/imx/imx6q-apalis-panel-cap-touch-7inch-parallel.dtso
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/*
+ * Copyright (c) Toradex
+ *
+ * Toradex Capacitive Touch Display 7" Parallel connected through the 40-way
+ * Unified Interface Display and 10-way Capacitive Touch Interface connectors
+ * (as featured on Ixora carrier board and Apalis Evaluation Board).
+ *
+ * https://docs.toradex.com/104497-7-inch-parallel-capacitive-touch-display-800x480-datasheet.pdf
+ * https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-7inch-parallel/
+ * https://www.toradex.com/accessories/capacitive-touch-display-7-inch-parallel
+ */
+
+/dts-v1/;
+/plugin/;
+
+&atmel_mxt_ts {
+	status = "okay";
+};
+
+&backlight {
+	status = "okay";
+};
+
+&lcd_display {
+	status = "okay";
+};
+
+&panel_dpi {
+	compatible = "logictechno,lt161010-2nhc";
+	power-supply = <&reg_3v3_sw>;
+
+	status = "okay";
+};