Collabora Details USB-C DisplayPort Alt Mode for Rockchip RK3588/RK3576
Collabora recently outlined their ongoing work to enable USB-C DisplayPort Alternate Mode support on Linux for Rockchip RK3588 and RK3576 System-on-Chips. This development targets devices such as the Flipper One. The technical overview details the required modifications across various Linux subsystems to achieve robust external display functionality via USB-C. The development involves implementing changes for USB Power Delivery (USB-PD), DisplayPort physical layer (PHY) components, hotplug detection mechanisms, and Direct Rendering Manager (DRM) drivers. Collabora's stated goal is to integrate these efforts into the mainline Linux kernel, which will allow a wider range of ARM-based devices using these Rockchip processors to support DisplayPort over USB-C.
Sources
- USB-C DisplayPort Alt Mode on Rockchip RK3588 and RK3576, starting with the Flipper One - Collabora Newsroom RSS Feed