linux-kernel - [PATCH 4/5] arm64: dts: mediatek: mt8395-nio-12l: Enable PHYs and USB role switch

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Message-ID: <20240409114211.310462-5-angelogioacchino.delregno@collabora.com>
Date: Tue,  9 Apr 2024 13:42:10 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: linux-mediatek@...ts.infradead.org
Cc: robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	matthias.bgg@...il.com,
	angelogioacchino.delregno@...labora.com,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	kernel@...labora.com
Subject: [PATCH 4/5] arm64: dts: mediatek: mt8395-nio-12l: Enable PHYs and USB role switch

Enable the PCIe0 PHY to be able to set calibrations read from eFuses,
improving the stability and performance of the PCIe link.

While at it, also enable the T-PHYs for both PCIe1 and for USB, allowing
the USB ports to finally switch to gadget mode if needed, and configure
the VBUS/ID pins of both USB ports for the same.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 .../dts/mediatek/mt8395-radxa-nio-12l.dts     | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8395-radxa-nio-12l.dts b/arch/arm64/boot/dts/mediatek/mt8395-radxa-nio-12l.dts
index f699633659b6..5cbe969da425 100644
--- a/arch/arm64/boot/dts/mediatek/mt8395-radxa-nio-12l.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8395-radxa-nio-12l.dts
@@ -685,6 +685,26 @@ pins-bus {
 		};
 	};
 
+	usb3_port0_pins: usb3p0-default-pins {
+		pins-vbus {
+			pinmux = <PINMUX_GPIO63__FUNC_VBUSVALID>;
+			input-enable;
+		};
+	};
+
+	usb2_port0_pins: usb2p0-default-pins {
+		pins-iddig {
+			pinmux = <PINMUX_GPIO130__FUNC_IDDIG_1P>;
+			input-enable;
+			bias-pull-up;
+		};
+
+		pins-vbus {
+			pinmux = <PINMUX_GPIO131__FUNC_USB_DRVVBUS_1P>;
+			output-low;
+		};
+	};
+
 	wifi_vreg_pins: wifi-vreg-pins {
 		pins-wifi-pmu-en {
 			pinmux = <PINMUX_GPIO65__FUNC_GPIO65>;
@@ -709,6 +729,10 @@ &pcie1 {
 	status = "okay";
 };
 
+&pciephy {
+	status = "okay";
+};
+
 &pmic {
 	interrupts-extended = <&pio 222 IRQ_TYPE_LEVEL_HIGH>;
 };
@@ -776,6 +800,18 @@ mt6315_7_vbuck1: vbuck1 {
 	};
 };
 
+&u3phy0 {
+	status = "okay";
+};
+
+&u3phy1 {
+	status = "okay";
+};
+
+&u3phy2 {
+	status = "okay";
+};
+
 &uart0 {
 	/* Exposed at 40 pin connector */
 	pinctrl-0 = <&uart0_pins>;
@@ -791,6 +827,8 @@ &uart1 {
 };
 
 &ssusb0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&usb3_port0_pins>;
 	role-switch-default-mode = "host";
 	usb-role-switch;
 	vusb33-supply = <&mt6359_vusb_ldo_reg>;
@@ -804,6 +842,8 @@ mtu3_hs0_role_sw: endpoint {
 };
 
 &ssusb2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&usb2_port0_pins>;
 	vusb33-supply = <&mt6359_vusb_ldo_reg>;
 	status = "okay";
 };
-- 
2.44.0