This driver is for the ASPEED BMC SoC's GFX display hardware. This driver runs on the ARM based BMC systems, unlike the ast driver which runs on a host CPU and is is for a PCIe graphics device that happens to live in the BMC's silicon, but is otherwise available for use by the BMC.
I submitted a RFC about a year ago.
https://patchwork.kernel.org/patch/10339605/
I've fixed all of the issues I had in the RFC, and made the cleanups that Eric suggested in that review. This version is based on next-20190327.
Joel Stanley (2): dt-bindings: gpu: Add ASPEED GFX bindings document drm: Add ASPEED GFX driver
.../devicetree/bindings/gpu/aspeed-gfx.txt | 41 +++ drivers/gpu/drm/Kconfig | 2 + drivers/gpu/drm/Makefile | 1 + drivers/gpu/drm/aspeed/Kconfig | 15 + drivers/gpu/drm/aspeed/Makefile | 3 + drivers/gpu/drm/aspeed/aspeed_gfx.h | 104 +++++++ drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c | 248 ++++++++++++++++ drivers/gpu/drm/aspeed/aspeed_gfx_drv.c | 269 ++++++++++++++++++ drivers/gpu/drm/aspeed/aspeed_gfx_out.c | 49 ++++ 9 files changed, 732 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpu/aspeed-gfx.txt create mode 100644 drivers/gpu/drm/aspeed/Kconfig create mode 100644 drivers/gpu/drm/aspeed/Makefile create mode 100644 drivers/gpu/drm/aspeed/aspeed_gfx.h create mode 100644 drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c create mode 100644 drivers/gpu/drm/aspeed/aspeed_gfx_drv.c create mode 100644 drivers/gpu/drm/aspeed/aspeed_gfx_out.c