The proposed DRM driver works on a Orange PI 2 with a kernel 4.5.0-rc1 and some H3 patches found in Hans de Goede's GIT repository.
As there is no documentation about the HDMI of the H3, the associated encoder/connector driver has not been included in this patch series. For test purpose, it may be built as a out-of-tree driver from the tarball: http://moinejf.free.fr/opi2/h3-hdmi.tar.gz and the DT files: http://moinejf.free.fr/opi2/sun8i-h3.dtsi http://moinejf.free.fr/opi2/sun8i-h3-orangepi-plus.dts
Jean-Francois Moine (2): clk: sunxi: Add sun6i/8i video support drm: sunxi: Add a basic DRM driver for Allwinner DE2
Documentation/devicetree/bindings/clock/sunxi.txt | 2 + .../devicetree/bindings/display/sunxi.txt | 81 ++++ drivers/clk/sunxi/clk-sun6i-display.c | 106 +++++ drivers/clk/sunxi/clk-sun6i-pll3.c | 174 +++++++ drivers/gpu/drm/Kconfig | 2 + drivers/gpu/drm/Makefile | 1 + drivers/gpu/drm/sunxi/Kconfig | 20 + drivers/gpu/drm/sunxi/Makefile | 7 + drivers/gpu/drm/sunxi/de2_crtc.c | 421 +++++++++++++++++ drivers/gpu/drm/sunxi/de2_crtc.h | 61 +++ drivers/gpu/drm/sunxi/de2_de.c | 505 +++++++++++++++++++++ drivers/gpu/drm/sunxi/de2_drm.h | 40 ++ drivers/gpu/drm/sunxi/de2_drv.c | 377 +++++++++++++++ drivers/gpu/drm/sunxi/de2_plane.c | 91 ++++ 14 files changed, 1888 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/sunxi.txt create mode 100644 drivers/clk/sunxi/clk-sun6i-display.c create mode 100644 drivers/clk/sunxi/clk-sun6i-pll3.c create mode 100644 drivers/gpu/drm/sunxi/Kconfig create mode 100644 drivers/gpu/drm/sunxi/Makefile create mode 100644 drivers/gpu/drm/sunxi/de2_crtc.c create mode 100644 drivers/gpu/drm/sunxi/de2_crtc.h create mode 100644 drivers/gpu/drm/sunxi/de2_de.c create mode 100644 drivers/gpu/drm/sunxi/de2_drm.h create mode 100644 drivers/gpu/drm/sunxi/de2_drv.c create mode 100644 drivers/gpu/drm/sunxi/de2_plane.c