USB Type-C protocol supports various modes of operations includes PD, USB3, and Altmode. If the platform design supports a Type-C connector then configuring these modes can be done via enumeration. However, there are some platforms that design these modes of operations as separate protocol connectors like design Display Port from on-chip USB3 controller. So accessing Type-C Altmode Display Port via onboard Display Port connector instead of a Type-C connector. These kinds of platforms require an explicit extcon driver in order to handle Power Delivery and Port Detection. This series support this Type-C Virtual PD and enable the same in ROCK Pi 4C SBC. Any inputs? Jagan. Jagan Teki (3): dt-bindings: extcon: Document Type-C Virtual PD driver extcon: Add Type-C Virtual PD driver arm64: dts: rk3399-rock-pi-4c: Enable Display Port .../extcon/extcon-usbc-virtual-pd.yaml | 66 ++++ MAINTAINERS | 6 + .../boot/dts/rockchip/rk3399-rock-pi-4c.dts | 16 + drivers/extcon/Kconfig | 10 + drivers/extcon/Makefile | 1 + drivers/extcon/extcon-usbc-virtual-pd.c | 285 ++++++++++++++++++ 6 files changed, 384 insertions(+) create mode 100644 Documentation/devicetree/bindings/extcon/extcon-usbc-virtual-pd.yaml create mode 100644 drivers/extcon/extcon-usbc-virtual-pd.c -- 2.25.1
