arm64: dts: mediatek: mt8186: Add Squirtle Chromebooks

Add a device tree for the MT8186 based Squirtle Chromebooks, also known
as the Acer Chromebook Spin 311 (R724T). The device is a 2-in-1
convertible.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20250617082004.1653492-7-wenst@chromium.org
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

Author: wens

arch/arm64/boot/dts/mediatek/Makefile

@@ -68,6 +68,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-magneton-sku393218.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-ponyta-sku0.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-ponyta-sku1.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-rusty-sku196608.dtb
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-squirtle.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-starmie-sku0.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-starmie-sku1.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-steelix-sku131072.dtb

arch/arm64/boot/dts/mediatek/mt8186-corsola-squirtle.dts

@@ -0,0 +1,107 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright 2024 Google LLC
+ */
+
+/dts-v1/;
+#include "mt8186-corsola-voltorb.dtsi"
+
+/ {
+	model = "Google squirtle board";
+	compatible = "google,squirtle", "mediatek,mt8186";
+	chassis-type = "convertible";
+};
+
+&i2c1 {
+	touchscreen@10 {
+		compatible = "elan,ekth6915";
+		reg = <0x10>;
+		interrupts-extended = <&pio 12 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&touchscreen_pins>;
+		reset-gpios = <&pio 60 GPIO_ACTIVE_LOW>;
+		vcc33-supply = <&pp3300_s3>;
+		status = "fail-needs-probe";
+	};
+
+	touchscreen@16 {
+		compatible = "elan,ekth8d18", "elan,ekth6a12nay";
+		reg = <0x16>;
+		interrupts-extended = <&pio 12 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&touchscreen_pins>;
+		reset-gpios = <&pio 60 GPIO_ACTIVE_LOW>;
+		vcc33-supply = <&pp3300_s3>;
+		status = "fail-needs-probe";
+	};
+};
+
+&i2c2 {
+	trackpad@68 {
+		compatible = "hid-over-i2c";
+		reg = <0x68>;
+		hid-descr-addr = <0x20>;
+		interrupts-extended = <&pio 11 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&trackpad_pin>;
+		vdd-supply = <&pp3300_s3>;
+		wakeup-source;
+		status = "fail-needs-probe";
+	};
+};
+
+&i2c5 {
+	clock-frequency = <400000>;
+
+	/delete-node/ codec@1a;
+
+	rt5650: codec@1a {
+		compatible = "realtek,rt5650";
+		reg = <0x1a>;
+		interrupts-extended = <&pio 17 IRQ_TYPE_EDGE_BOTH>;
+		avdd-supply = <&mt6366_vio18_reg>;
+		cpvdd-supply = <&mt6366_vio18_reg>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&speaker_codec_pins_default>;
+		cbj-sleeve-gpios = <&pio 150 GPIO_ACTIVE_HIGH>;
+		#sound-dai-cells = <0>;
+		realtek,dmic1-data-pin = <2>;
+		realtek,jd-mode = <2>;
+	};
+};
+
+&sound {
+	compatible = "mediatek,mt8186-mt6366-rt5650-sound";
+	model = "mt8186_rt5650";
+
+	audio-routing =
+		"Headphone", "HPOL",
+		"Headphone", "HPOR",
+		"HDMI1", "TX";
+
+	hs-playback-dai-link {
+		codec {
+			sound-dai = <&rt5650>;
+		};
+	};
+
+	hs-capture-dai-link {
+		codec {
+			sound-dai = <&rt5650>;
+		};
+	};
+
+	spk-hdmi-playback-dai-link {
+		codec {
+			sound-dai = <&it6505dptx>;
+		};
+	};
+};
+
+&speaker_codec {
+	status = "disabled";
+};
+
+&trackpad_steelix {
+	status = "disabled";
+};

arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix.dtsi

@@ -118,7 +118,7 @@
 	i2c-scl-internal-delay-ns = <22000>;
 
 	/* second source component */
-	trackpad@2c {
+	trackpad_steelix: trackpad@2c {
 		compatible = "hid-over-i2c";
 		reg = <0x2c>;
 		hid-descr-addr = <0x20>;