[PATCH v1 2/7] arm64: dts: ti: k3-am69-aquila: Add DSI to LVDS adapter with 10.1" display

[Vitor Soares <ivitro@gmail.com>]

From: Vitor Soares <vitor.soares@toradex.com>

Add a device tree overlay for the Toradex DSI to LVDS Adapter with the
Toradex Capacitive Touch Display 10.1" LVDS. Used on Development Board
(J44), where DSI_1 is exposed via a Samtec LSS-130 connector.

The adapter is based on the Texas Instruments SN65DSI84 DSI-to-LVDS
bridge and drives a LogicTechno LT170410-2WHC 10.1" WXGA LVDS panel.
Touch input is provided by an Atmel MaxTouch capacitive touch controller.

Link: https://developer.toradex.com/hardware/accessories/add-ons/dsi-lvds-adapter
Link: https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-101inch-lvds
Signed-off-by: Vitor Soares <vitor.soares@toradex.com>
---
 arch/arm64/boot/dts/ti/Makefile               |   5 +
 ...la-dsi-to-lvds-panel-cap-touch-10inch.dtso | 142 ++++++++++++++++++
 2 files changed, 147 insertions(+)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am69-aquila-dsi-to-lvds-panel-cap-touch-10inch.dtso

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index c1aa5c1df927..bec6f11f3d44 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -178,6 +178,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-clover.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-dev.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-dev-dsi-to-hdmi.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-dsi-to-hdmi.dtbo
+dtb-$(CONFIG_ARCH_K3) += k3-am69-aquila-dsi-to-lvds-panel-cap-touch-10inch.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am69-sk.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am69-sk-pcie0-ep.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-j784s4-evm.dtb
@@ -270,6 +271,9 @@ k3-am68-sk-base-board-csi2-dual-imx219-dtbs := k3-am68-sk-base-board.dtb \
 	k3-j721e-sk-csi2-dual-imx219.dtbo
 k3-am68-sk-base-board-pcie1-ep-dtbs := k3-am68-sk-base-board.dtb \
 	k3-am68-sk-base-board-pcie1-ep.dtbo
+k3-am69-aquila-dev-dsi-to-lvds-panel-cap-touch-10inch-dtbs := \
+	k3-am69-aquila-dev.dtb \
+	k3-am69-aquila-dsi-to-lvds-panel-cap-touch-10inch.dtbo
 k3-am69-sk-csi2-dual-imx219-dtbs := k3-am69-sk.dtb \
 	k3-j721e-sk-csi2-dual-imx219.dtbo
 k3-am69-sk-pcie0-ep-dtbs := k3-am69-sk.dtb \
@@ -344,6 +348,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
 	k3-am68-phyboard-izar-peb-av-15.dtb \
 	k3-am68-sk-base-board-csi2-dual-imx219.dtb \
 	k3-am68-sk-base-board-pcie1-ep.dtb \
+	k3-am69-aquila-dev-dsi-to-lvds-panel-cap-touch-10inch.dtb \
 	k3-am69-sk-csi2-dual-imx219.dtb \
 	k3-am69-sk-pcie0-ep.dtb \
 	k3-j7200-evm-pcie1-ep.dtb \
diff --git a/arch/arm64/boot/dts/ti/k3-am69-aquila-dsi-to-lvds-panel-cap-touch-10inch.dtso b/arch/arm64/boot/dts/ti/k3-am69-aquila-dsi-to-lvds-panel-cap-touch-10inch.dtso
new file mode 100644
index 000000000000..4bbcdb420143
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am69-aquila-dsi-to-lvds-panel-cap-touch-10inch.dtso
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (c) Toradex
+ *
+ * Toradex DSI to LVDS Adapter on Aquila DSI_1 with Capacitive Touch Display 10.1"
+ * Used on Development Board (J44), DSI_1 is exposed via a Samtec LSS-130 connector.
+ *
+ * https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-101inch-lvds
+ * https://www.toradex.com/accessories/capacitive-touch-display-10.1-inch-lvds
+ * https://developer.toradex.com/hardware/accessories/add-ons/dsi-lvds-adapter
+ * https://www.toradex.com/accessories/verdin-dsi-to-lvds-adapter
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/pwm/pwm.h>
+
+&{/} {
+	backlight_pwm3: backlight-pwm3 {
+		compatible = "pwm-backlight";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_19_dsi_1>;
+		brightness-levels = <0 45 63 88 119 158 203 255>;
+		default-brightness-level = <4>;
+		/* Aquila GPIO_19_DSI_1 (AQUILA B44) */
+		enable-gpios = <&main_gpio0 13 GPIO_ACTIVE_HIGH>;
+		/* Aquila PWM_3_DSI (AQUILA B46) */
+		pwms = <&main_ehrpwm5 0 6666667 PWM_POLARITY_INVERTED>;
+	};
+
+	panel-lvds-bridge {
+		compatible = "logictechno,lt170410-2whc";
+		backlight = <&backlight_pwm3>;
+		power-supply = <&reg_3v3_dsi>;
+
+		port {
+			panel_lvds_bridge_in: endpoint {
+				remote-endpoint = <&dsi_lvds_bridge_out>;
+			};
+		};
+	};
+
+	reg_3v3_dsi: regulator-3v3-dsi {
+		compatible = "regulator-fixed";
+		regulator-max-microvolt = <3300000>;
+		regulator-min-microvolt = <3300000>;
+		regulator-name = "+V3.3_DSI";
+	};
+};
+
+&dphy_tx0 {
+	status = "okay";
+};
+
+&dsi0 {
+	status = "okay";
+};
+
+&dsi0_ports {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	port@0 {
+		reg = <0>;
+
+		dsi0_out: endpoint {
+			remote-endpoint = <&dsi_lvds_bridge_in>;
+		};
+	};
+
+	port@1 {
+		reg = <1>;
+
+		dsi0_in: endpoint {
+			remote-endpoint = <&dpi2_out>;
+		};
+	};
+};
+
+&dss_ports {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	port@2 {
+		reg = <2>;
+
+		dpi2_out: endpoint {
+			remote-endpoint = <&dsi0_in>;
+		};
+	};
+};
+
+&i2c_dsi_0 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	bridge@2c {
+		compatible = "ti,sn65dsi84";
+		reg = <0x2c>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_20_dsi_1>;
+		/* Aquila GPIO_20_DSI_1 (AQUILA B45) */
+		enable-gpios = <&main_gpio0 18 GPIO_ACTIVE_HIGH>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				dsi_lvds_bridge_in: endpoint {
+					data-lanes = <1 2 3 4>;
+					remote-endpoint = <&dsi0_out>;
+				};
+			};
+
+			port@2 {
+				reg = <2>;
+
+				dsi_lvds_bridge_out: endpoint {
+					remote-endpoint = <&panel_lvds_bridge_in>;
+				};
+			};
+		};
+	};
+
+	touchscreen@4a {
+		compatible = "atmel,maxtouch";
+		reg = <0x4a>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_17_dsi_1>, <&pinctrl_gpio_18_dsi_1>;
+		/* Aquila GPIO_17_DSI_1 (AQUILA B42) */
+		interrupt-parent = <&main_gpio0>;
+		interrupts = <12 IRQ_TYPE_EDGE_FALLING>;
+		/* Aquila GPIO_18_DSI_1 (AQUILA B43) */
+		reset-gpios = <&main_gpio0 31 GPIO_ACTIVE_LOW>;
+	};
+};
-- 
2.54.0