Hi Dave, This is DRM driver for ARC PGU - simple bitstreamer used on Synopsys ARC SDP boards (both AXS101 and AXS103).
Those sources are from v6 series floated to mailing list here https://lists.freedesktop.org/archives/dri-devel/2016-April/105156.html and based on top of today's drm-next branch. Best regards, Alexey The following changes since commit 027b3f8ba9277410c3191d72d1ed2c6146d8a668:  drm/modes: stop handling framebuffer special (2016-04-22 10:47:16 +1000) are available in the git repository at:  https://github.com/foss-for-synopsys-dwc-arc-processors/linux.git topic-arcpgu-v6 for you to fetch changes up to b8c1eca1e089e8f4247b19b73955c875bf7b18ae:  arc: axs10x - add support of ARC PGU (2016-04-26 18:26:54 +0300) ---------------------------------------------------------------- Alexey Brodkin (3):       drm: Add DT bindings documentation for ARC PGU display controller       MAINTAINERS: Add maintainer for ARC PGU display controller       arc: axs10x - add support of ARC PGU Carlos Palminha (1):       drm: Add support of ARC PGU display controller  Documentation/devicetree/bindings/display/snps,arcpgu.txt |  35 +++++++  MAINTAINERS                                               |   6 ++  arch/arc/boot/dts/axs10x_mb.dtsi                          |  61 ++++++++++++  drivers/gpu/drm/Kconfig                                   |   2 +  drivers/gpu/drm/Makefile                                  |   1 +  drivers/gpu/drm/arc/Kconfig                               |  10 ++  drivers/gpu/drm/arc/Makefile                              |   2 +  drivers/gpu/drm/arc/arcpgu.h                              |  50 ++++++++++  drivers/gpu/drm/arc/arcpgu_crtc.c                         | 257 +++++++++++++++++++++++++++++++++++++++++++++++  drivers/gpu/drm/arc/arcpgu_drv.c                          | 282 ++++++++++++++++++++++++++++++++++++++++++++++++++++  drivers/gpu/drm/arc/arcpgu_hdmi.c                         | 201 +++++++++++++++++++++++++++++++++++++  drivers/gpu/drm/arc/arcpgu_regs.h                         |  40 ++++++++  12 files changed, 947 insertions(+)  create mode 100644 Documentation/devicetree/bindings/display/snps,arcpgu.txt  create mode 100644 drivers/gpu/drm/arc/Kconfig  create mode 100644 drivers/gpu/drm/arc/Makefile  create mode 100644 drivers/gpu/drm/arc/arcpgu.h  create mode 100644 drivers/gpu/drm/arc/arcpgu_crtc.c  create mode 100644 drivers/gpu/drm/arc/arcpgu_drv.c  create mode 100644 drivers/gpu/drm/arc/arcpgu_hdmi.c  create mode 100644 drivers/gpu/drm/arc/arcpgu_regs.h