USB-C DisplayPort Alt Mode on Rockchip RK3588 and RK3576, starting with the Flipper One

· Collabora Blog · Oct. 6, 2026, 8:54 p.m.
Linux usb-c Embedded Systems rockchip
Summary
This blog post explores the implementation of USB-C DisplayPort Alt Mode on the Rockchip RK3588 and RK3576, detailing the USB-PD, PHY, hotplug, and DRM changes necessary for its functionality and progress towards inclusion in the mainline Linux kernel.
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