arch/arm/boot/dts/overlays : Add Waveshare DSI-TOUCH series panels Device Tree support

Add the device tree for the Waveshare DSI-TOUCH series panels.

Signed-off-by: Waveshare_Team <[email protected]>

Author: Waveshare_Team

arch/arm/boot/dts/overlays/Makefile

@@ -334,6 +334,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
 	vc4-kms-dsi-lt070me05000-v2.dtbo \
 	vc4-kms-dsi-waveshare-800x480.dtbo \
 	vc4-kms-dsi-waveshare-panel.dtbo \
+	vc4-kms-dsi-waveshare-panel-v2.dtbo \
 	vc4-kms-kippah-7inch.dtbo \
 	vc4-kms-v3d.dtbo \
 	vc4-kms-v3d-pi4.dtbo \

arch/arm/boot/dts/overlays/README

@@ -5518,6 +5518,26 @@ Params: 2_8_inch                2.8" 480x640
                                 the default DSI1 and i2c_csi_dsi).
 
 
+Name:   vc4-kms-dsi-waveshare-panel-v2
+Info:   Enable the Waveshare DSI-TOUCH series screen
+        Requires vc4-kms-v3d to be loaded.
+Load:   dtoverlay=vc4-kms-dsi-waveshare-panel-v2,<param>
+Params: 5_0_inch_a              5.0" 720x1280 2lane
+        5_5_inch_a              5.5" 720x1280 2lane
+        7_0_inch_a              7.0" A 720x1280 2lane
+        7_0_inch_b              7.0" B 720x1280 2lane
+        8_0_inch_a              8.0" 800x1280 2lane
+        8_0_inch_a_4lane        8.0" 800x1280 4lane
+        10_1_inch_a             10.1" 800x1280 2lane
+        10_1_inch_a_4lane       10.1" 800x1280 4lane
+        disable_touch           Disable the touch controller
+        invx                    Touchscreen inverted x axis
+        invy                    Touchscreen inverted y axis
+        swapxy                  Touchscreen swapped x y axis
+        dsi0                    Use DSI0 and i2c_csi_dsi0 (rather than
+                                the default DSI1 and i2c_csi_dsi).
+
+
 Name:   vc4-kms-kippah-7inch
 Info:   This overlay is now deprecated - see vc4-kms-dpi-panel,kippah-7inch
 Load:   <Deprecated>

arch/arm/boot/dts/overlays/vc4-kms-dsi-waveshare-panel-v2-overlay.dts

@@ -0,0 +1,94 @@
+/*
+ * vc4-kms-dsi-waveshare-panel-v2-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 = "waveshare,touchscreen-panel-regulator";
+				reg = <0x45>;
+				gpio-controller;
+				#gpio-cells = <2>;
+				enable-gpio = <&display_mcu 2 GPIO_ACTIVE_HIGH>;
+			};
+
+			touch: goodix@5d {
+				compatible = "goodix,gt9271";
+				reg = <0x5d>;
+				reset-gpio = <&display_mcu 9 GPIO_ACTIVE_HIGH>;
+			};
+		};
+	};
+
+	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 = "waveshare,10.1-dsi-touch-a";
+				reset-gpio = <&display_mcu 1 GPIO_ACTIVE_HIGH>;
+				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";
+		};
+	};
+
+	__overrides__ {
+		5_0_inch_a = <&dsi_panel>, "compatible=waveshare,5.0-dsi-touch-a";
+		5_5_inch_a = <&dsi_panel>, "compatible=waveshare,5.5-dsi-touch-a";
+		7_0_inch_a = <&dsi_panel>, "compatible=waveshare,7.0-dsi-touch-a";
+		7_0_inch_b = <&dsi_panel>, "compatible=waveshare,7.0-dsi-touch-b";
+		8_0_inch_a = <&dsi_panel>, "compatible=waveshare,8.0-dsi-touch-a";
+		8_0_inch_a_4lane = <&dsi_panel>, "compatible=waveshare,8.0-dsi-touch-a-4lane";
+		10_1_inch_a = <&dsi_panel>, "compatible=waveshare,10.1-dsi-touch-a";
+		10_1_inch_a_4lane = <&dsi_panel>, "compatible=waveshare,10.1-dsi-touch-a-4lane";
+		disable_touch = <&touch>, "status=disabled";
+		invx = <&touch>,"touchscreen-inverted-x?";
+		invy = <&touch>,"touchscreen-inverted-y?";
+		swapxy = <&touch>,"touchscreen-swapped-x-y?";
+		dsi0 = <&dsi_frag>, "target:0=",<&dsi0>,
+			   <&i2c_frag>, "target:0=",<&i2c_csi_dsi0>;
+	};
+};