[PATCH v2 3/7] arm64: dts: freescale: imx8mm-verdin: Add Toradex DSI to LVDS adapter with 10.1" display

[Ernest Van Hoecke]

From: Ernest Van Hoecke <ernest.vanhoecke at toradex.com>

Add a device tree overlay for the Toradex DSI to LVDS Adapter with the
Toradex Capacitive Touch Display 10.1" LVDS. The adapter connects to the
Verdin DSI_1 interface. It is based on the Texas Instruments SN65DSI84
DSI-to-LVDS bridge and drives a LogicTechno LT170410-2WHC 10.1" WXGA IPS
LCD 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: Ernest Van Hoecke <ernest.vanhoecke at toradex.com>
---
 arch/arm64/boot/dts/freescale/Makefile             |   4 +
 ...-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtso | 104 +++++++++++++++++++++
 2 files changed, 108 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index f55c570cb3e3..91ae54931818 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -179,6 +179,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw7903.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw7904.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-dev-nau8822-btl.dtbo
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-dsi-to-hdmi.dtbo
+dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtbo
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-nonwifi-dahlia-dsi-to-hdmi.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-nonwifi-dahlia.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-nonwifi-dev-dsi-to-hdmi.dtb
@@ -191,6 +192,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-nonwifi-zinnia.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dahlia-dsi-to-hdmi.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dahlia.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dev-dsi-to-hdmi.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10inch.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dev-nau8822-btl.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dev.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-ivy.dtb
@@ -204,6 +206,8 @@ imx8mm-verdin-nonwifi-dev-dsi-to-hdmi-dtbs := imx8mm-verdin-nonwifi-dev.dtb imx8
 imx8mm-verdin-nonwifi-yavia-dsi-to-hdmi-dtbs := imx8mm-verdin-nonwifi-yavia.dtb imx8mm-verdin-dsi-to-hdmi.dtbo
 imx8mm-verdin-wifi-dahlia-dsi-to-hdmi-dtbs := imx8mm-verdin-wifi-dahlia.dtb imx8mm-verdin-dsi-to-hdmi.dtbo
 imx8mm-verdin-wifi-dev-dsi-to-hdmi-dtbs := imx8mm-verdin-wifi-dev.dtb imx8mm-verdin-dsi-to-hdmi.dtbo
+imx8mm-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10inch-dtbs := imx8mm-verdin-wifi-dev.dtb \
+	imx8mm-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtbo
 imx8mm-verdin-wifi-dev-nau8822-btl-dtbs := imx8mm-verdin-wifi-dev.dtb imx8mm-verdin-dev-nau8822-btl.dtbo
 imx8mm-verdin-wifi-yavia-dsi-to-hdmi-dtbs := imx8mm-verdin-wifi-yavia.dtb imx8mm-verdin-dsi-to-hdmi.dtbo
 
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtso b/arch/arm64/boot/dts/freescale/imx8mm-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtso
new file mode 100644
index 000000000000..2c253018893b
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtso
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (c) Toradex
+ *
+ * Toradex DSI to LVDS Adapter on Verdin DSI_1 with Capacitive Touch Display
+ * 10.1". Used on Dahlia (X17) and Development Board (X48) that expose DSI_1
+ * 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_i2s_2_d_out_dsi_1_bkl_en>;
+		brightness-levels = <0 45 63 88 119 158 203 255>;
+		default-brightness-level = <4>;
+		/* Verdin I2S_2_D_OUT (SODIMM 46) - DSI_1_BKL_EN_LVDS */
+		enable-gpios = <&gpio3 24 GPIO_ACTIVE_HIGH>;
+		power-supply = <&reg_3p3v>;
+		/* Verdin PWM_3_DSI (SODIMM 19) - PWM_3_DSI_LVDS */
+		pwms = <&pwm1 0 6666667 PWM_POLARITY_INVERTED>;
+	};
+
+	panel-lvds-bridge {
+		compatible = "logictechno,lt170410-2whc";
+		backlight = <&backlight_pwm3>;
+		power-supply = <&reg_dsi_lvds>;
+
+		port {
+			panel_lvds_bridge_in: endpoint {
+				remote-endpoint = <&dsi_lvds_bridge_out>;
+			};
+		};
+	};
+
+	reg_dsi_lvds: regulator-dsi-lvds {
+		compatible = "regulator-fixed";
+		/* Verdin CTRL_SLEEP_MOCI# (SODIMM 256) */
+		gpios = <&gpio5 1 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-boot-on;
+		regulator-name = "DSI_1_PWR_EN";
+	};
+};
+
+&atmel_mxt_ts {
+	vdd-supply = <&reg_dsi_lvds>;
+
+	status = "okay";
+};
+
+&lcdif {
+	status = "okay";
+};
+
+&lvds_ti_sn65dsi84 {
+	vcc-supply = <&reg_dsi_lvds>;
+
+	status = "okay";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port at 0 {
+			reg = <0>;
+
+			dsi_lvds_bridge_in: endpoint {
+				data-lanes = <1 2 3 4>;
+				remote-endpoint = <&mipi_dsi_out>;
+			};
+		};
+
+		port at 2 {
+			reg = <2>;
+
+			dsi_lvds_bridge_out: endpoint {
+				remote-endpoint = <&panel_lvds_bridge_in>;
+			};
+		};
+	};
+};
+
+&mipi_dsi {
+	samsung,esc-clock-frequency = <16000000>;
+
+	status = "okay";
+};
+
+&mipi_dsi_out {
+	remote-endpoint = <&dsi_lvds_bridge_in>;
+};

-- 
2.43.0