arm64: dts: qcom: monaco-arduino-monza: add Waveshare 8" DSI touch ov…

arch/arm64/boot/dts/qcom/Makefile

@@ -77,6 +77,10 @@ monaco-evk-el2-dtbs := monaco-evk.dtb monaco-el2.dtbo
 
 dtb-$(CONFIG_ARCH_QCOM)	+= monaco-evk-el2.dtb
 
+monaco-arduino-monza-waveshare-8-dsi-touch-a-dtbs	:= monaco-arduino-monza-el2.dtb monaco-arduino-monza-camx.dtbo monaco-arduino-monza-camx-el2.dtbo monaco-arduino-monza-waveshare-8-dsi-touch-a.dtbo
+dtb-$(CONFIG_ARCH_QCOM)	+= monaco-arduino-monza-waveshare-8-dsi-touch-a.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= monaco-arduino-monza-waveshare-8-dsi-touch-a.dtbo
+
 monaco-evk-camera-imx577-dtbs	:= monaco-evk.dtb monaco-evk-camera-imx577.dtbo
 dtb-$(CONFIG_ARCH_QCOM)	+= monaco-evk-camera-imx577.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= monaco-evk-camera-imx577.dtbo

arch/arm64/boot/dts/qcom/monaco-arduino-monza-waveshare-8-dsi-touch-a.dtso

@@ -0,0 +1,116 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/clock/qcom,sa8775p-camcc.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+&{/} {
+	panel_avdd: regulator-panel-avdd {
+		compatible = "regulator-fixed";
+		regulator-name = "panel-avdd";
+		gpios = <&wsgpio 0 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	panel_iovcc: regulator-panel-iovcc {
+		compatible = "regulator-fixed";
+		regulator-name = "panel-iovcc";
+		gpios = <&wsgpio 4 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	regulator-panel-vcc {
+		compatible = "regulator-fixed";
+		regulator-name = "panel-vcc";
+		gpios = <&wsgpio 8 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-always-on;
+	};
+};
+
+/*
+ * The panel's touch/GPIO-expander stack is hosted on the I2C exposed by the
+ * CCI0 block (@0xac13000). That same block is used by the camera subsystem
+ * for cam0. The two uses are mutually exclusive, so this overlay must FIRST
+ * release CCI0 from the camera framework (disable the cam0 CCI0 master)
+ * BEFORE enabling base &cci0 as a plain I2C bus further below.
+ *
+ * &cam_cci0 is referenced by path because the label is defined in
+ * monaco-arduino-monza-camera.dtsi (used by the camera overlay), not in the
+ * base DTB, and ufdt resolves &label only against the base DTB __symbols__.
+ * The node only exists once the camera overlay is applied, so that overlay
+ * must be applied first.
+ */
+&{/soc@0/qcom,cci0@ac13000} {
+	status = "disabled";
+};
+
+&adv7535 {
+	status = "disabled";
+};
+
+&cci0 {
+	pinctrl-0 = <&cci0_i2c0_default>;
+	pinctrl-1 = <&cci0_i2c0_sleep>;
+	pinctrl-names = "default", "sleep";
+	status = "okay";
+};
+
+&cci0_i2c0 {
+	wsgpio: gpio@45 {
+		compatible = "waveshare,dsi-touch-gpio";
+		reg = <0x45>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
+	touchscreen@5d {
+		compatible = "goodix,gt9271";
+		reg = <0x5d>;
+		reset-gpios = <&wsgpio 9 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&hdmi_connector {
+	status = "disabled";
+};
+
+&hdmi_mi2s_playback_dai_link {
+	status = "disabled";
+};
+
+&mdss_dsi0 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	vdda-supply = <&vreg_l1c>;
+
+	panel@0 {
+		compatible = "waveshare,8.0-dsi-touch-a", "jadard,jd9365da-h3";
+		reg = <0>;
+		backlight = <&wsgpio>;
+		reset-gpios = <&wsgpio 1 GPIO_ACTIVE_LOW>;
+		vccio-supply = <&panel_iovcc>;
+		vdd-supply = <&panel_avdd>;
+
+		port {
+			panel_in: endpoint {
+				remote-endpoint = <&mdss_dsi0_out>;
+			};
+		};
+	};
+};
+
+&mdss_dsi0_out {
+	data-lanes = <0 1 2 3>;
+	remote-endpoint = <&panel_in>;
+};
+
+&mdss_dsi0_phy {
+	vdds-supply = <&vreg_l4a>;
+};

arch/arm64/boot/dts/qcom/monaco-arduino-monza.dts

@@ -48,7 +48,7 @@
 		};
 	};
 
-	hdmi-connector {
+	hdmi_connector: hdmi-connector {
 		compatible = "hdmi-connector";
 		label = "hdmi";
 		type = "a";
@@ -110,7 +110,7 @@
 			};
 		};
 
-		hdmi-mi2s-playback-dai-link {
+		hdmi_mi2s_playback_dai_link: hdmi-mi2s-playback-dai-link {
 			link-name = "HDMI Playback";
 
 			codec {