The newest Direct Rendering Manager (DRM) display driver that has been in the works for the Linux kernel is “Yhgch” from Inspur.
Major Chinese ODM Inspur has been working on this Yhgch DRM driver for the Linux kernel. Yhgch is for an Inspur SoC/BMC chipset but details beyond that are light.
So far I haven’t been able to turn up any information on this Yhgch Baseboard Management Controller (BMC) so it would appear to either be a placeholder name or for an unreleased product.
In any event the latest patches for this Yhgch driver were posted today for review. This basic Yhgch is enough to get display support working with this BMC under Linux.