arm64: dts: qcom: sdm660-xiaomi-lavender: Add USB

Enable and configure DWC3 and QUSB2 PHY to enable USB
functionality on the Redmi Note 7.
Signed-off-by: NAlexey Min <alexey.min@gmail.com>
Co-developed-by: NDang Huynh <danct12@riseup.net>
Signed-off-by: NDang Huynh <danct12@riseup.net>
Reviewed-by: NKonrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: NBjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211120214227.779742-9-danct12@riseup.net

arch/arm64/boot/dts/qcom/sdm660-xiaomi-lavender.dts

@@ -65,6 +65,15 @@
 			no-map;
 		};
 	};
+
+	/*
+	 * Until we hook up type-c detection, we
+	 * have to stick with this. But it works.
+	 */
+	extcon_usb: extcon-usb {
+		compatible = "linux,extcon-usb-gpio";
+		id-gpio = <&tlmm 58 GPIO_ACTIVE_HIGH>;
+	};
 };
 
 &blsp1_uart2 {
@@ -81,6 +90,13 @@
 	linux,code = <KEY_VOLUMEDOWN>;
 };
 
+&qusb2phy {
+	status = "okay";
+
+	vdd-supply = <&vreg_l1b_0p925>;
+	vdda-phy-dpdm-supply = <&vreg_l7b_3p125>;
+};
+
 &rpm_requests {
 	pm660l-regulators {
 		compatible = "qcom,rpm-pm660l-regulators";
@@ -356,3 +372,12 @@
 &tlmm {
 	gpio-reserved-ranges = <8 4>;
 };
+
+&usb3 {
+	status = "okay";
+};
+
+&usb3_dwc3 {
+	dr_mode = "peripheral";
+	extcon = <&extcon_usb>;
+};