From b232a43b5c60a0c994cb486792d4f4c80199052f Mon Sep 17 00:00:00 2001
From: Fabien Parent <fparent@baylibre.com>
Date: Mon, 24 Feb 2025 19:49:34 +0800
Subject: [PATCH] arm64: dts: mediatek: mt8395-genio-1200-evk: add support for
 TCPC port

Enable USB Type-C support on MediaTek MT8395 Genio 1200 EVK by adding
configuration for TCPC Port, USB-C connector, MUX IT5205 and related
settings.

Configure dual role switch capability, set up PD (Power Delivery) profiles,
and establish endpoints for SS (SuperSpeed) and HS (HighSpeed) USB.

Update pinctrl configurations for U3 P0 VBus default pins and set dr_mode
to "otg" for OTG (On-The-Go) mode operation.

Add ITE IT5205 (TYPEC MUX) under I2C2 bus and configure its properties;
also add references and configurations to 'typec-mux' node.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
Signed-off-by: Yow-Shin Liou <yow-shin.liou@mediatek.com>
Signed-off-by: Simon Sun <simon.sun@yunjingtech.com>
Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com>
Link: https://lore.kernel.org/r/20250224114934.3583191-1-macpaul.lin@mediatek.com
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 .../dts/mediatek/mt8395-genio-1200-evk.dts    | 102 ++++++++++++++++++
 1 file changed, 102 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8395-genio-1200-evk.dts b/arch/arm64/boot/dts/mediatek/mt8395-genio-1200-evk.dts
index 5950194c9ccb2..f02c32def593a 100644
--- a/arch/arm64/boot/dts/mediatek/mt8395-genio-1200-evk.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8395-genio-1200-evk.dts
@@ -229,6 +229,21 @@
 	pinctrl-0 = <&i2c2_pins>;
 	pinctrl-names = "default";
 	status = "okay";
+
+	typec-mux@48 {
+		compatible = "ite,it5205";
+		reg = <0x48>;
+		vcc-supply = <&mt6359_vibr_ldo_reg>;
+		mode-switch;
+		orientation-switch;
+		status = "okay";
+
+		port {
+			it5205_sbu_ep: endpoint {
+				remote-endpoint = <&mt6360_ssusb_sbu_ep>;
+			};
+		};
+	};
 };
 
 &i2c6 {
@@ -335,6 +350,63 @@
 				regulator-always-on;
 			};
 		};
+
+		tcpc {
+			compatible = "mediatek,mt6360-tcpc";
+			interrupts-extended = <&pio 17 IRQ_TYPE_LEVEL_LOW>;
+			interrupt-names = "PD_IRQB";
+
+			connector {
+				compatible = "usb-c-connector";
+				label = "USB-C";
+				data-role = "dual";
+				op-sink-microwatt = <10000000>;
+				power-role = "dual";
+				try-power-role = "sink";
+
+				source-pdos = <PDO_FIXED(5000, 1000,
+							 PDO_FIXED_DUAL_ROLE |
+							 PDO_FIXED_DATA_SWAP)>;
+				sink-pdos = <PDO_FIXED(5000, 2000,
+						       PDO_FIXED_DUAL_ROLE |
+						       PDO_FIXED_DATA_SWAP)>;
+
+				pd-revision = /bits/ 8 <0x03 0x01 0x01 0x06>;
+
+				altmodes {
+					displayport {
+						svid = /bits/ 16 <0xff01>;
+						vdo = <0x00001c46>;
+					};
+				};
+
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					port@0 {
+						reg = <0>;
+						typec_con_hs: endpoint {
+							remote-endpoint = <&mtu3_hs0_role_sw>;
+						};
+					};
+
+					port@1 {
+						reg = <1>;
+						typec_con_ss: endpoint {
+							remote-endpoint = <&mtu3_ss0_role_sw>;
+						};
+					};
+
+					port@2 {
+						reg = <2>;
+						mt6360_ssusb_sbu_ep: endpoint {
+							remote-endpoint = <&it5205_sbu_ep>;
+						};
+					};
+				};
+			};
+		};
 	};
 };
 
@@ -770,6 +842,13 @@
 		};
 	};
 
+	u3_p0_vbus: u3-p0-vbus-default-pins {
+		pins-vbus {
+			pinmux = <PINMUX_GPIO63__FUNC_VBUSVALID>;
+			input-enable;
+		};
+	};
+
 	uart0_pins: uart0-pins {
 		pins {
 			pinmux = <PINMUX_GPIO98__FUNC_UTXD0>,
@@ -898,8 +977,31 @@
 };
 
 &ssusb0 {
+	dr_mode = "otg";
+	pinctrl-names = "default";
+	pinctrl-0 = <&u3_p0_vbus>;
+	usb-role-switch;
 	vusb33-supply = <&mt6359_vusb_ldo_reg>;
 	status = "okay";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+			mtu3_hs0_role_sw: endpoint {
+				remote-endpoint = <&typec_con_hs>;
+			};
+		};
+
+		port@1 {
+			reg = <1>;
+			mtu3_ss0_role_sw: endpoint {
+				remote-endpoint = <&typec_con_ss>;
+			};
+		};
+	};
 };
 
 &ssusb2 {
-- 
2.47.2