From d3d24545684c6b6637603e14443bbd67dae59413 Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Mon, 30 Nov 2020 13:41:16 +0000
Subject: [PATCH 0949/1085] dtoverlays: Add overlays for 5" and 7" ILI9881
 panels

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
 arch/arm/boot/dts/overlays/Makefile           |   2 +
 arch/arm/boot/dts/overlays/README             |  28 ++++
 .../vc4-kms-dsi-ili9881-5inch-overlay.dts     | 122 ++++++++++++++++++
 .../vc4-kms-dsi-ili9881-7inch-overlay.dts     | 122 ++++++++++++++++++
 4 files changed, 274 insertions(+)
 create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-dsi-ili9881-5inch-overlay.dts
 create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-dsi-ili9881-7inch-overlay.dts

--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -301,6 +301,8 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
 	vc4-kms-dpi-panel.dtbo \
 	vc4-kms-dsi-7inch.dtbo \
 	vc4-kms-dsi-generic.dtbo \
+	vc4-kms-dsi-ili9881-5inch.dtbo \
+	vc4-kms-dsi-ili9881-7inch.dtbo \
 	vc4-kms-dsi-lt070me05000.dtbo \
 	vc4-kms-dsi-lt070me05000-v2.dtbo \
 	vc4-kms-dsi-waveshare-panel.dtbo \
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -4981,6 +4981,34 @@ Params: clock-frequency         Display
                                 Only supported on Pi5 and CM
 
 
+Name:   vc4-kms-dsi-ili9881-5inch
+Info:   Enable the Raspberry Pi 5" ILI9881 based touchscreen panel.
+        Requires vc4-kms-v3d to be loaded.
+Load:   dtoverlay=vc4-kms-dsi-ili9881-5inch,<param>
+Params: sizex                   Touchscreen size x (default 720)
+        sizey                   Touchscreen size y (default 1280)
+        invx                    Touchscreen inverted x axis
+        invy                    Touchscreen inverted y axis
+        swapxy                  Touchscreen swapped x y axis
+        disable_touch           Disables the touch screen overlay driver
+        dsi0                    Use DSI0 and i2c_csi_dsi0 (rather than
+                                the default DSI1 and i2c_csi_dsi).
+
+
+Name:   vc4-kms-dsi-ili9881-7inch
+Info:   Enable the Raspberry Pi 7" ILI9881 based touchscreen panel.
+        Requires vc4-kms-v3d to be loaded.
+Load:   dtoverlay=vc4-kms-dsi-ili9881-7inch,<param>
+Params: sizex                   Touchscreen size x (default 720)
+        sizey                   Touchscreen size y (default 1280)
+        invx                    Touchscreen inverted x axis
+        invy                    Touchscreen inverted y axis
+        swapxy                  Touchscreen swapped x y axis
+        disable_touch           Disables the touch screen overlay driver
+        dsi0                    Use DSI0 and i2c_csi_dsi0 (rather than
+                                the default DSI1 and i2c_csi_dsi).
+
+
 Name:   vc4-kms-dsi-lt070me05000
 Info:   Enable a JDI LT070ME05000 DSI display on DSI1.
         Note that this is a 4 lane DSI device, so it will only work on a Compute
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/vc4-kms-dsi-ili9881-5inch-overlay.dts
@@ -0,0 +1,122 @@
+/*
+ * vc4-kms-dsi-ili9881-5inch-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>;
+			};
+
+			gt911: gt911@5d {
+				compatible = "goodix,gt911";
+				reg = <0x5d>;
+				AVDD28-supply = <&touch_reg>;
+				touchscreen-size-x = <720>;
+				touchscreen-size-y = <1280>;
+				touchscreen-x-mm = <62>;
+				touchscreen-y-mm = <110>;
+			};
+		};
+	};
+
+	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-5inch";
+				reset-gpio = <&display_mcu 0 GPIO_ACTIVE_LOW>;
+				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__ {
+			touch_reg: touch_reg@1 {
+				reg = <1>;
+				compatible = "regulator-fixed";
+				regulator-name = "touch_reg_1";
+				gpio = <&display_mcu 1 GPIO_ACTIVE_HIGH>;
+				startup-delay-us = <50000>;
+				enable-active-high;
+			};
+		};
+	};
+
+	fragment@10 {
+		target = <&gt911>;
+		__dormant__ {
+			touchscreen-inverted-x;
+		};
+	};
+
+	fragment@11 {
+		target = <&gt911>;
+		__dormant__ {
+			touchscreen-inverted-y;
+		};
+	};
+
+	__overrides__ {
+		dsi0 = <&dsi_frag>, "target:0=",<&dsi0>,
+		       <&i2c_frag>, "target:0=",<&i2c_csi_dsi0>,
+		       <&touch_reg>, "reg:0=0",
+		       <&touch_reg>, "regulator-name=touch_reg_0";
+		sizex = <&gt911>,"touchscreen-size-x:0";
+		sizey = <&gt911>,"touchscreen-size-y:0";
+		invx = <0>, "+10";
+		invy = <0>, "+11";
+		swapxy = <&gt911>,"touchscreen-swapped-x-y?";
+		disable_touch = <&gt911>, "status=disabled";
+	};
+};
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/vc4-kms-dsi-ili9881-7inch-overlay.dts
@@ -0,0 +1,122 @@
+/*
+ * vc4-kms-dsi-ili9881-5inch-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>;
+			};
+
+			gt911: gt911@5d {
+				compatible = "goodix,gt911";
+				reg = <0x5d>;
+				AVDD28-supply = <&touch_reg>;
+				touchscreen-size-x = <720>;
+				touchscreen-size-y = <1280>;
+				touchscreen-x-mm = <90>;
+				touchscreen-y-mm = <151>;
+			};
+		};
+	};
+
+	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-7inch";
+				reset-gpio = <&display_mcu 0 GPIO_ACTIVE_LOW>;
+				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__ {
+			touch_reg: touch_reg@1 {
+				reg = <1>;
+				compatible = "regulator-fixed";
+				regulator-name = "touch_reg_1";
+				gpio = <&display_mcu 1 GPIO_ACTIVE_HIGH>;
+				startup-delay-us = <50000>;
+				enable-active-high;
+			};
+		};
+	};
+
+	fragment@10 {
+		target = <&gt911>;
+		__dormant__ {
+			touchscreen-inverted-x;
+		};
+	};
+
+	fragment@11 {
+		target = <&gt911>;
+		__dormant__ {
+			touchscreen-inverted-y;
+		};
+	};
+
+	__overrides__ {
+		dsi0 = <&dsi_frag>, "target:0=",<&dsi0>,
+		       <&i2c_frag>, "target:0=",<&i2c_csi_dsi0>,
+		       <&touch_reg>, "reg:0=0",
+		       <&touch_reg>, "regulator-name=touch_reg_0";
+		sizex = <&gt911>,"touchscreen-size-x:0";
+		sizey = <&gt911>,"touchscreen-size-y:0";
+		invx = <0>, "+10";
+		invy = <0>, "+11";
+		swapxy = <&gt911>,"touchscreen-swapped-x-y?";
+		disable_touch = <&gt911>, "status=disabled";
+	};
+};
