arm64: dts: qcom: sc7280-herobrine: Add nodes for onboard USB hub

Add nodes for the onboard USB hub on herobrine devices. Remove the
'always-on' property from the hub regulator, since the regulator
is now managed by the onboard_usb_hub driver.

This requires "CONFIG_USB_ONBOARD_HUB=y".
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220722093238.v24.2.I18481b296484eec47bdc292a31fa46fa8c655ca9@changeid

arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi

@@ -144,8 +144,8 @@ pp3300_hub: pp3300-hub-regulator {
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
 
+		/* The BIOS leaves this regulator on */
 		regulator-boot-on;
-		regulator-always-on;
 
 		gpio = <&tlmm 157 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
@@ -604,6 +604,25 @@ &usb_1 {
 
 &usb_1_dwc3 {
 	dr_mode = "host";
+
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	/* 2.x hub on port 1 */
+	usb_hub_2_x: hub@1 {
+		compatible = "usbbda,5411";
+		reg = <1>;
+		vdd-supply = <&pp3300_hub>;
+		peer-hub = <&usb_hub_3_x>;
+	};
+
+	/* 3.x hub on port 2 */
+	usb_hub_3_x: hub@2 {
+		compatible = "usbbda,411";
+		reg = <2>;
+		vdd-supply = <&pp3300_hub>;
+		peer-hub = <&usb_hub_2_x>;
+	};
 };
 
 &usb_1_hsphy {