ARM: dts: sun8i: Enable USB DRC on Ippo Q8H-A33 tablet

Enable the otg/drc usb controller on the Ippo Q8H-A33 tablet, for now it
is enabled in host-only mode, because true OTG support requires support
for detecting and enabling Vbus through the axp221 pmic.

For this to work the Vbus on the port must be enabled by u-boot,
or a powered hub must be used.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/boot/dts/sun8i-a33-ippo-q8h-v1.2.dts

@@ -116,3 +116,18 @@ &r_uart {
 	pinctrl-0 = <&r_uart_pins_a>;
 	status = "okay";
 };
+
+/*
+ * FIXME for now we only support host mode and rely on u-boot to have
+ * turned on Vbus which is controlled by the axp223 pmic on the board.
+ *
+ * Once we have axp223 support we should switch to fully supporting otg.
+ */
+&usb_otg {
+	dr_mode = "host";
+	status = "okay";
+};
+
+&usbphy {
+	status = "okay";
+};