[PATCH 3/7] ARM: dts: imx6q-apalis: Add Toradex Capacitive Touch Display 10.1" LVDS

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

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

Add a device tree overlay for the Toradex Capacitive Touch Display 10.1"
LVDS connected via the Apalis iMX6 LDB.

The panel is a LogicTechno LT170410-2WHC 10.1" WXGA IPS LCD and the
touch input is provided by an Atmel MaxTouch capacitive touch
controller.

Remove the panel-lvds node from the Apalis iMX6 dtsi, as it is an
external component that does not exist at the SoM level.

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-101inch-lvds
Signed-off-by: Leonardo Costa <leonardo.costa@toradex.com>
---
 arch/arm/boot/dts/nxp/imx/Makefile            |  6 +++
 ...6q-apalis-panel-cap-touch-10inch-lvds.dtso | 53 +++++++++++++++++++
 arch/arm/boot/dts/nxp/imx/imx6qdl-apalis.dtsi | 13 -----
 3 files changed, 59 insertions(+), 13 deletions(-)
 create mode 100644 arch/arm/boot/dts/nxp/imx/imx6q-apalis-panel-cap-touch-10inch-lvds.dtso

diff --git a/arch/arm/boot/dts/nxp/imx/Makefile b/arch/arm/boot/dts/nxp/imx/Makefile
index 32d77a59c4358..23fcc80d7f309 100644
--- a/arch/arm/boot/dts/nxp/imx/Makefile
+++ b/arch/arm/boot/dts/nxp/imx/Makefile
@@ -99,6 +99,10 @@ imx6q-apalis-v1.2-ixora-v1.2-hdmi-dtbs := \
 	imx6q-apalis-v1.2-ixora-v1.2.dtb \
 	imx6q-apalis-hdmi.dtbo
 
+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
+
 imx6qdl-dhcom-pdk2-overlay-497-200-x12-dtbs := \
 	imx6q-dhcom-pdk2.dtb \
 	imx6qdl-dhcom-pdk2-overlay-497-200-x12.dtbo
@@ -233,6 +237,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
 	imx6q-apalis-ixora-v1.1-hdmi.dtb \
 	imx6q-apalis-ixora-v1.2.dtb \
 	imx6q-apalis-ixora-v1.2-hdmi.dtb \
+	imx6q-apalis-panel-cap-touch-10inch-lvds.dtbo \
 	imx6q-apalis-v1.2-eval.dtb \
 	imx6q-apalis-v1.2-eval-hdmi.dtb \
 	imx6q-apalis-v1.2-eval-v1.2.dtb \
@@ -243,6 +248,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
 	imx6q-apalis-v1.2-ixora-v1.1-hdmi.dtb \
 	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-apf6dev.dtb \
 	imx6q-arm2.dtb \
 	imx6q-b450v3.dtb \
diff --git a/arch/arm/boot/dts/nxp/imx/imx6q-apalis-panel-cap-touch-10inch-lvds.dtso b/arch/arm/boot/dts/nxp/imx/imx6q-apalis-panel-cap-touch-10inch-lvds.dtso
new file mode 100644
index 0000000000000..a84114e1d3fba
--- /dev/null
+++ b/arch/arm/boot/dts/nxp/imx/imx6q-apalis-panel-cap-touch-10inch-lvds.dtso
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/*
+ * Copyright (c) Toradex
+ *
+ * Toradex Capacitive Touch Display 10.1" connected via Apalis iMX6 LDB
+ * on carrier boards with a Toradex standard LVDS display connector.
+ *
+ * https://docs.toradex.com/105952-10-1-inch-lvds-capacitive-touch-display-1280x800-datasheet.pdf
+ * https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-101inch-lvds
+ * https://www.toradex.com/accessories/capacitive-touch-display-10.1-inch-lvds
+ */
+
+/dts-v1/;
+/plugin/;
+
+&{/} {
+	panel-lvds {
+		compatible = "logictechno,lt170410-2whc";
+		backlight = <&backlight>;
+		power-supply = <&reg_3v3_sw>;
+
+		port {
+			lvds_panel_in: endpoint {
+				remote-endpoint = <&lvds0_out>;
+			};
+		};
+	};
+};
+
+&atmel_mxt_ts {
+	status = "okay";
+};
+
+&backlight {
+	status = "okay";
+};
+
+&ldb {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	status = "okay";
+
+	lvds-channel@0 {
+		reg = <0>;
+
+		status = "okay";
+	};
+};
+
+&lvds0_out {
+	remote-endpoint = <&lvds_panel_in>;
+};
diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-apalis.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-apalis.dtsi
index 5fcd7cdb7001f..e52b55a386f7a 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6qdl-apalis.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-apalis.dtsi
@@ -95,18 +95,6 @@ lcd_panel_in: endpoint {
 		};
 	};
 
-	panel_lvds: panel-lvds {
-		compatible = "panel-lvds";
-		backlight = <&backlight>;
-		status = "disabled";
-
-		port {
-			lvds_panel_in: endpoint {
-				remote-endpoint = <&lvds0_out>;
-			};
-		};
-	};
-
 	poweroff {
 		compatible = "regulator-poweroff";
 		cpu-supply = <&vgen2_reg>;
@@ -738,7 +726,6 @@ port@4 {
 			reg = <4>;
 
 			lvds0_out: endpoint {
-				remote-endpoint = <&lvds_panel_in>;
 			};
 		};
 	};