phy: rockchip-inno-usb2: support otg-port for rk3399
The rk3399 SoC USB2 PHY is comprised of one Host port and one OTG port. And OTG port is for USB2.0 part of USB3.0 OTG controller, as a part to construct a fully feature Type-C subsystem. With this patch, we can support OTG port with the following functions: - Support BC1.2 charger detect, and use extcon notifier to send USB charger types to power driver. - Support PHY suspend for power management. - Support OTG Host only mode. Signed-off-by: NWilliam Wu <wulf@rock-chips.com> Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
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