[PATCH 2/6] arm64: dts: freescale: imx8mp-verdin: Add Toradex DSI to LVDS adapter with 10.1" display

From: Leonardo Costa <[email protected]>

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 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: Leonardo Costa <[email protected]>
---
 arch/arm64/boot/dts/freescale/Makefile        |  5 +
 ...in-dsi-to-lvds-panel-cap-touch-10inch.dtso | 94 +++++++++++++++++++
 2 files changed, 99 insertions(+)
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtso

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index d643f85baa7f..c55269a0532a 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -508,6 +508,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-venice-gw73xx-2x.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-venice-gw74xx.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-venice-gw75xx-2x.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-venice-gw82xx-2x.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtbo
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-nonwifi-dahlia.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-nonwifi-dev.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-nonwifi-ivy.dtb
@@ -517,12 +518,16 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-nonwifi-zinnia.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-panel-cap-touch-10inch-lvds.dtbo
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-dahlia.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-dev.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10inch.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-ivy.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-mallow.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-mallow-panel-cap-touch-10inch-lvds.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-yavia.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-zinnia.dtb
 
+imx8mp-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10inch-dtbs := \
+	imx8mp-verdin-wifi-dev.dtb \
+	imx8mp-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtbo
 imx8mp-verdin-wifi-mallow-panel-cap-touch-10inch-lvds-dtbs := \
 	imx8mp-verdin-wifi-mallow.dtb \
 	imx8mp-verdin-panel-cap-touch-10inch-lvds.dtbo
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtso b/arch/arm64/boot/dts/freescale/imx8mp-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtso
new file mode 100644
index 000000000000..da05a0256889
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtso
@@ -0,0 +1,94 @@
+// 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>
+
+&{/} {
+	panel-lvds-bridge {
+		compatible = "logictechno,lt170410-2whc";
+		backlight = <&backlight>;
+		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 = <&gpio4 29 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";
+};
+
+&backlight {
+	status = "okay";
+};
+
+&lcdif1 {
+	status = "okay";
+};
+
+&lvds_ti_sn65dsi84 {
+	vcc-supply = <&reg_dsi_lvds>;
+
+	status = "okay";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+
+			dsi_lvds_bridge_in: endpoint {
+				data-lanes = <1 2 3 4>;
+				remote-endpoint = <&mipi_dsi_out>;
+			};
+		};
+
+		port@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>;
+};