[PATCH v6] arm64: dts: mediatek: mt8395-genio-1200-evk: add support for TCPC port

[Macpaul Lin <macpaul.lin@mediatek.com>]

From: Fabien Parent <fparent@baylibre.com>

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>
---
 .../dts/mediatek/mt8395-genio-1200-evk.dts    | 102 ++++++++++++++++++
 1 file changed, 102 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@0' and 'port@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'.
 - Drop it5205fn phandle for node typec-mux@48.
 - Reorder properties of typec-mux@48
 - Add "Reviewed-by:" tag. Thanks!

Changes for v5:
 - Squash two patches into one patch and refine commit messages:
   suggested by reviewer.
 - Drop 'role-switch-default-mode'
 - Add altmodes settings
 - Drop 'Reviewed-by:' tag since the two sub patches has been combined
   into a new patch.

Changes for v6:
 - Add 'pd-revision' property to 'connector', thanks ChiYuan Huang's help!.
 - Add 'Reviewed-by' tag. Thanks!

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 5950194c9ccb..f02c32def593 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 @@ &i2c2 {
 	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 @@ 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)>;
+
+				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 @@ 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>,
@@ -898,8 +977,31 @@ &ufsphy {
 };
 
 &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 {
-- 
2.45.2