https://gitlab.collabora.com/hardware-enablement/rockchip-3588/notes-for-rockchip-3588/-/blob/main/mainline-status.md https://gitlab.collabora.com/hardware-enab

https://gitlab.collabora.com/hardware-enablement/rockchip-3588/notes-for-rockchip-3588/-/blob/main/mainline-status.md https://gitlab.collabora.com/hardware-enablement/rockchip-35... has some docs Really it boils down to specific SoC and even specific device; it is futile to try to generalize too much. But Rockchip has seen steady progress in this front, and I'd assume older devices like rk3399 based ones especially would have pretty solid support.