drm: sun8i: Add DE2 HDMI video support

This patchset series adds HDMI video support to the Allwinner sun8i SoCs which include the display engine 2 (DE2). The driver contains the code for the A83T and H3 SoCs, and some H3 boards, but it could be used/extended for other SoCs (A64, H2, H5) and boards (Banana PIs, Orange PIs).

v7:
- more explanations about the DE2 in the DT documentation
- separate patches for DT documentation (Rob Herring)
- show all properties in DT examples (Rob Herring)
- use drm_of_component_probe()
- use the index of the DE 'ports' in the DT as
the DE mixer number (no alias needed anymore)
- change some 'lcd' to 'tcon' in the DT
- add HDMI module parameter for DVI mode when screen overscan problems
- fall back to some CEA modes in case of EDID read failure
- fix some settings (interlace) and simplify code
- fix bug in start of A83T HDMI
- fix lack of CLK_PLL_DE definition in the DT include (Icenowy Zheng)
v6:
- remove audio support (other patchset to come)
- use DRM modeset data for HDMI configuration (thanks to Jernej Škrabec)
- more meaningfull register names
- use a mutex for DE I/O protection
- merge DE and plane into one file
- don't activate the video hardware when video not started (Maxime Ripard)
- remove 'type = "video" in DT graph ports
(Rob Herring)
- change the I/O accesses by #define instead of struct (Maxime Ripard, André Przywara)
- remove pm functions (Maxime Ripard)
- set the pll-de/de clocks in the DT (Maxime Ripard)
- use platform_get_irq instead of irq_of_parse_and_map (Maxime Ripard)
- rename sunxi to sun8i (Maxime Ripard)
- fix coding style errors (Maxime Ripard)
- subclass the drm structure in private data (Daniel Vetter)
- move drm_dev_register at end of init (Daniel Vetter)
v5:
- add overlay plane
- add audio support
- add support for the A83T
- add back the HDMI driver
- many bug fixes
v4:
- drivers/clk/sunxi/Makefile was missing (Emil Velikov)
v3:
- add the hardware cursor
- simplify and fix the DE2 init sequences
- generation for all SUNXI SoCs (Andre Przywara)
v2:
- remove the HDMI driver
- remarks from Chen-Yu Tsai and Russell King
- DT documentation added

Jean-Francois Moine (8):
drm: sun8i: Add a basic DRM driver for Allwinner DE2 drm/sun8i: Add DT bindings documentation of Allwinner DE2
drm: sun8i: add HDMI video support to A83T and H3 drm/sunxi: Add DT bindings documentation of Allwinner HDMI
clk: sunxi-ng: define the PLL DE clock
ARM: dts: sun8i-h3: add HDMI video nodes
ARM: dts: sun8i-h3: Add HDMI video to the Banana Pi M2+
ARM: dts: sun8i-h3: Add HDMI video to the Orange PI 2

 .../devicetree/bindings/display/sunxi/hdmi.txt     |  56 ++
 .../bindings/display/sunxi/sun8i-de2.txt           | 121 +++
 arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts    |  12 +
 arch/arm/boot/dts/sun8i-h3-orangepi-2.dts          |  12 +
 arch/arm/boot/dts/sun8i-h3.dtsi                    |  65 ++
 drivers/gpu/drm/Kconfig                            |   2 +
 drivers/gpu/drm/Makefile                           |   1 +
 drivers/gpu/drm/sun8i/Kconfig                      |  26 +
 drivers/gpu/drm/sun8i/Makefile                     |   9 +
 drivers/gpu/drm/sun8i/de2_crtc.c                   | 449 +++++++++++
 drivers/gpu/drm/sun8i/de2_crtc.h                   |  52 ++
 drivers/gpu/drm/sun8i/de2_drv.c                    | 317 ++++++++
 drivers/gpu/drm/sun8i/de2_drv.h                    |  48 ++
 drivers/gpu/drm/sun8i/de2_hdmi.c                   | 440 +++++++++++
 drivers/gpu/drm/sun8i/de2_hdmi.h                   |  51 ++
 drivers/gpu/drm/sun8i/de2_hdmi_io.c                | 842 +++++++++++++++++++++
 drivers/gpu/drm/sun8i/de2_plane.c                  | 734 ++++++++++++++++++
 include/dt-bindings/clock/sun8i-h3-ccu.h           |   1 +
 18 files changed, 3238 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/sunxi/hdmi.txt
 create mode 100644 Documentation/devicetree/bindings/display/sunxi/sun8i-de2.txt
 create mode 100644 drivers/gpu/drm/sun8i/Kconfig
 create mode 100644 drivers/gpu/drm/sun8i/Makefile
 create mode 100644 drivers/gpu/drm/sun8i/de2_crtc.c
 create mode 100644 drivers/gpu/drm/sun8i/de2_crtc.h
 create mode 100644 drivers/gpu/drm/sun8i/de2_drv.c
 create mode 100644 drivers/gpu/drm/sun8i/de2_drv.h
 create mode 100644 drivers/gpu/drm/sun8i/de2_hdmi.c
 create mode 100644 drivers/gpu/drm/sun8i/de2_hdmi.h
 create mode 100644 drivers/gpu/drm/sun8i/de2_hdmi_io.c
 create mode 100644 drivers/gpu/drm/sun8i/de2_plane.c

2.10.2

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