verdin-am62: add Riverdi 7 inch dsi panel overlay

Add overlay for Riverdi 7 inch capacitive touch panel connected via DSI.

It can be directly connected to Mallow carrier board and, using Verdin
DSI display adapter, it can be connected to Dev and Dahlia carrier boards.

Related-to: ELB-5845
Signed-off-by: Parth Pancholi <parth.pancholi@toradex.com>

2 files changed, 141 insertions, 0 deletions

diff --git a/overlays/Makefile b/overlays/Makefile
index 0f54e5a..c241124 100644
--- a/overlays/Makefile
+++ b/overlays/Makefile
@@ -56,6 +56,7 @@ dtb-y += colibri-imx7_vga-640x480_overlay.dtbo
 dtb-y += verdin-am62_dsi-to-hdmi_overlay.dtbo
 dtb-y += verdin-am62_dsi-to-lvds_panel-cap-touch-10inch-lvds_overlay.dtbo
 dtb-y += verdin-am62_nau8822-btl_overlay.dtbo
+dtb-y += verdin-am62_panel-cap-touch-7inch-dsi_overlay.dtbo
 dtb-y += verdin-am62_panel-cap-touch-10inch-dsi_overlay.dtbo
 dtb-y += verdin-am62_spidev_overlay.dtbo
 dtb-y += verdin-imx8mm_dsi-to-hdmi_overlay.dtbo
diff --git a/overlays/verdin-am62_panel-cap-touch-7inch-dsi_overlay.dts b/overlays/verdin-am62_panel-cap-touch-7inch-dsi_overlay.dts
new file mode 100644
index 0000000..70955d2
--- /dev/null
+++ b/overlays/verdin-am62_panel-cap-touch-7inch-dsi_overlay.dts
@@ -0,0 +1,140 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2024 Toradex
+ */
+
+// Verdin with connected Capacitive Touch Display 7" DSI.
+// Adapter and display can be ordered at Toradex.
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/pwm/pwm.h>
+
+/ {
+	compatible = "toradex,verdin-am62";
+};
+
+&{/} {
+	backlight: backlight {
+		compatible = "pwm-backlight";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_i2s_2_d_out_gpio>;
+		brightness-levels = <0 45 63 88 119 158 203 255>;
+		default-brightness-level = <4>;
+		/* Verdin DSI_1_BKL_EN_LVDS (shared with I2S_2_D_OUT from MCASP1, SODIMM 46) */
+		enable-gpios = <&main_gpio0 34 GPIO_ACTIVE_HIGH>;
+		power-supply = <&reg_3v3>;
+		/* Verdin PWM_3_DSI/PWM_3_DSI_LVDS (SODIMM 19) */
+		pwms = <&epwm1 0 6666667 0>;
+	};
+
+	panel-lvds {
+		compatible = "panel-lvds";
+		backlight = <&backlight>;
+		data-mapping = "vesa-24";
+		height-mm = <86>;
+		width-mm = <154>;
+
+		panel-timing {
+			clock-frequency = <40800000 51200000 67200000>;
+			de-active = <1>;
+			hactive = <1024>;
+			hback-porch = <160 160 160>;
+			hfront-porch = <16 160 216>;
+			hsync-active = <0>;
+			hsync-len = <1 5 140>;
+			pixelclk-active = <1>;
+			vactive = <600>;
+			vback-porch = <23 23 23>;
+			vfront-porch = <1 12 126>;
+			vsync-active = <0>;
+			vsync-len = <1 10 20>;
+		};
+
+		port {
+			panel_in_lvds: endpoint {
+				remote-endpoint = <&lvds_out_panel>;
+			};
+		};
+	};
+};
+
+&dsi_bridge {
+	status = "okay";
+};
+
+&dsi_bridge_ports {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	port@1 {
+		reg = <1>;
+
+		mipi_dsi_bridge1_out: endpoint {
+			remote-endpoint = <&dsi84_in>;
+		};
+	};
+};
+
+&dss {
+	status = "okay";
+};
+
+/* Verdin PWM_3_DSI */
+&epwm1 {
+	status = "okay";
+};
+
+/* Verdin I2C_2_DSI */
+&main_i2c2 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	bridge@2c {
+		compatible = "ti,sn65dsi83";
+		reg = <0x2c>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_dsi1_bkl_en>;
+		/* SN65DSI83 IRQ, not connected) */
+		/* Verdin DSI_1_BKL_EN (SODIMM 21) */
+		enable-gpios = <&main_gpio0 30 GPIO_ACTIVE_HIGH>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				dsi84_in: endpoint {
+					data-lanes = <1 2 3 4>;
+					remote-endpoint = <&mipi_dsi_bridge1_out>;
+				};
+			};
+
+			port@2 {
+				reg = <2>;
+
+				lvds_out_panel: endpoint {
+					remote-endpoint = <&panel_in_lvds>;
+				};
+			};
+		};
+	};
+
+	touch@41 {
+		compatible = "ilitek,ili2132";
+		reg = <0x41>;
+		/* Verdin DSI_1_INT# (TOUCH_INT#, SODIMM 17) */
+		interrupt-parent = <&main_gpio1>;
+		interrupts = <49 IRQ_TYPE_EDGE_RISING>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_dsi1_int>, <&pinctrl_i2s_2_bclk_gpio>;
+		/* Verdin I2S_2_BCLK (TOUCH_RESET#, SODIMM 42) */
+		reset-gpios = <&main_gpio0 35 GPIO_ACTIVE_LOW>;
+	};
+};