[PATCH v4 1/2] arm64: dts: mediatek: mt8395-genio-1200-evk: add support for TCPC port

[Macpaul Lin]

From: Fabien Parent <fparent at baylibre.com>

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

Signed-off-by: Fabien Parent <fparent at baylibre.com>
Signed-off-by: Yow-Shin Liou <yow-shin.liou at mediatek.com>
Signed-off-by: Simon Sun <simon.sun at yunjingtech.com>
Signed-off-by: Macpaul Lin <macpaul.lin at mediatek.com>
---
 .../dts/mediatek/mt8395-genio-1200-evk.dts    | 72 +++++++++++++++++++
 1 file changed, 72 insertions(+)

Changes for v2:
 - Drop the no need '1/2' DT Schema update patch in the 1st version.  
 - Fix indent for 'ports' node, it should under the 'connector' node.
 - Correct the index for 'port at 0' and 'port at 1' node.

Changes for v3:
 - Correct the order between new added nodes.

Changes for v4:
 - Reorder for property 'op-sink-microwatt'.
 - Fix indentation for 'source-pdos' and 'sink-pdos' nodes.
 - Correct node 'pin-cmd-dat' with 'pins-vbus'.
 - Add both Highspeed and Superspeed ports to ssusb0 port.
 - Set 'role-switch-default-mode' = "peripheral" for ssusb0 port.
 - Rename endpoint of USB data port to 'mtu3_hs0_role_sw' and
   'mtu3_ss0_role_sw'.

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 1ef6262b65c9..ca039c8e4c71 100644
--- a/arch/arm64/boot/dts/mediatek/mt8395-genio-1200-evk.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8395-genio-1200-evk.dts
@@ -330,6 +330,47 @@ mt6360_ldo7: ldo7 {
 				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)>;
+
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					port at 0 {
+						reg = <0>;
+						typec_con_hs: endpoint {
+							remote-endpoint = <&mtu3_hs0_role_sw>;
+						};
+					};
+
+					port at 1 {
+						reg = <1>;
+						typec_con_ss: endpoint {
+							remote-endpoint = <&mtu3_ss0_role_sw>;
+						};
+					};
+				};
+			};
+		};
 	};
 };
 
@@ -755,6 +796,13 @@ pins-reset {
 		};
 	};
 
+	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>,
@@ -885,8 +933,32 @@ &ufsphy {
 };
 
 &ssusb0 {
+	dr_mode = "otg";
+	pinctrl-names = "default";
+	pinctrl-0 = <&u3_p0_vbus>;
+	role-switch-default-mode = "peripheral";
+	usb-role-switch;
 	vusb33-supply = <&mt6359_vusb_ldo_reg>;
 	status = "okay";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port at 0 {
+			reg = <0>;
+			mtu3_hs0_role_sw: endpoint {
+				remote-endpoint = <&typec_con_hs>;
+			};
+		};
+
+		port at 1 {
+			reg = <1>;
+			mtu3_ss0_role_sw: endpoint {
+				remote-endpoint = <&typec_con_ss>;
+			};
+		};
+	};
 };
 
 &ssusb2 {
-- 
2.45.2