dtoverlays: Add overlay for 10.1" DSI touchscreen

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>

Author: 6by9

arch/arm/boot/dts/overlays/Makefile

@@ -338,6 +338,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
 	vc4-kms-dpi-panel.dtbo \
 	vc4-kms-dsi-7inch.dtbo \
 	vc4-kms-dsi-generic.dtbo \
+	vc4-kms-dsi-ili79600-10-1inch.dtbo \
 	vc4-kms-dsi-ili9881-5inch.dtbo \
 	vc4-kms-dsi-ili9881-7inch.dtbo \
 	vc4-kms-dsi-lt070me05000.dtbo \

arch/arm/boot/dts/overlays/README

@@ -5725,6 +5725,21 @@ Params: clock-frequency         Display clock frequency (Hz)
                                 Only supported on Pi5 and CM
 
 
+Name:   vc4-kms-dsi-ili79600-10-1inch
+Info:   Enable the Raspberry Pi 10" ILI79600 based touchscreen panel.
+        Requires vc4-kms-v3d to be loaded.
+Load:   dtoverlay=vc4-kms-dsi-ili79600-10-1inch,<param>
+Params: sizex                   Touchscreen size x (default 1200)
+        sizey                   Touchscreen size y (default 1920)
+        invx                    Touchscreen inverted x axis
+        invy                    Touchscreen inverted y axis
+        swapxy                  Touchscreen swapped x y axis
+        disable_touch           Disables the touch screen overlay driver
+        rotation                Display rotation {0,90,180,270} (default 0)
+        dsi0                    Use DSI0 and i2c_csi_dsi0 (rather than
+                                the default DSI1 and i2c_csi_dsi).
+
+
 Name:   vc4-kms-dsi-ili9881-5inch
 Info:   Enable the Raspberry Pi 5" ILI9881 based touchscreen panel.
         Requires vc4-kms-v3d to be loaded.

arch/arm/boot/dts/overlays/vc4-kms-dsi-ili79600-10-1inch-overlay.dts

@@ -0,0 +1,126 @@
+/*
+ * vc4-kms-dsi-ili79600-10-1inch-overlay.dts
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	compatible = "brcm,bcm2835";
+
+	i2c_frag: fragment@0 {
+		target = <&i2c_csi_dsi>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			display_mcu: display_mcu@45
+			{
+				compatible = "raspberrypi,v2-touchscreen-panel-regulator";
+				reg = <0x45>;
+				gpio-controller;
+				#gpio-cells = <2>;
+			};
+
+			touch: ts@41 {
+				compatible = "ilitek,ili79600a";
+				reg = <0x41>;
+
+				reset-gpio = <&display_mcu 1 GPIO_ACTIVE_LOW>;
+
+				touchscreen-size-x = < 1200 >;
+				touchscreen-size-y = < 1920 >;
+				vcc-supply = <&display_reg>;
+
+				panel = <&dsi_panel>;
+			};
+		};
+	};
+
+	dsi_frag: fragment@1 {
+		target = <&dsi1>;
+		__overlay__  {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			port {
+				dsi_out: endpoint {
+					remote-endpoint = <&panel_in>;
+				};
+			};
+
+			dsi_panel: dsi_panel@0 {
+				reg = <0>;
+				compatible = "raspberrypi,dsi-10-1inch";
+				power-supply = <&display_reg>;
+				backlight = <&display_mcu>;
+
+				port {
+					panel_in: endpoint {
+						remote-endpoint = <&dsi_out>;
+					};
+				};
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&i2c0if>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	fragment@3 {
+		target = <&i2c0mux>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	fragment@4 {
+		target-path = "/";
+		__overlay__ {
+			display_reg: display_reg@1 {
+				reg = <1>;
+				compatible = "regulator-fixed";
+				regulator-name = "display_reg_1";
+				gpio = <&display_mcu 0 GPIO_ACTIVE_HIGH>;
+				startup-delay-us = <50000>;
+				enable-active-high;
+			};
+		};
+	};
+
+	fragment@10 {
+		target = <&touch>;
+		__dormant__ {
+			touchscreen-inverted-x;
+		};
+	};
+
+	fragment@11 {
+		target = <&touch>;
+		__dormant__ {
+			touchscreen-inverted-y;
+		};
+	};
+
+	__overrides__ {
+		sizex = <&touch>,"touchscreen-size-x:0";
+		sizey = <&touch>,"touchscreen-size-y:0";
+		invx = <0>, "+10";
+		invy = <0>, "+11";
+		swapxy = <&touch>,"touchscreen-swapped-x-y?";
+		disable_touch = <&touch>, "status=disabled";
+		rotation = <&dsi_panel>, "rotation:0";
+		dsi0 = <&dsi_frag>, "target:0=",<&dsi0>,
+		       <&i2c_frag>, "target:0=",<&i2c_csi_dsi0>,
+		       <&display_reg>, "reg:0=0",
+		       <&display_reg>, "regulator-name=display_reg_0";
+	};
+};