[U-Boot] [RFC PATCH 0/3] sunxi: video: Add support for HDMI output on H3

[Jernej Skrabec <jernej.skrabec@siol.net>]

This patch series add support for HDMI output. Support for other,
newer, SoCs, which also uses DE2 and same or similar HDMI controller
and PHY can be easily added later (A83T/A64/H5/R40). Current driver
can also be easily extended with TV out support, just like video
driver for older Allwinner SoCs.

While driver works, I would like to get few opinions first.
- From what I understand, drivers which supports DT are preferred.
  Would it be better to rewrite this driver to support device tree?
- TCON code is currently exactly the same as in driver for older
  SoCs. Should I split it out into shared module? Also TV out code
  seems to be similar, but I didn't manage to confirm that it works
  as-is on H3.
- A80 SoC is mix of older display engine and newer HDMI controller,
  so it doesn't really work with either of sunxi video drivers. Two
  solutions I see here are either combine both driver into one massive
  display driver or, much better, split everything by components
  (TCON/DE/DE2/HDMI/TV) and instantiate compatible ones. I guess this
  is not much different than adding support for DT in drivers. Note
  that I don't have any A80 board, I'm just thinking ahead.

Best regards,
Jernej Skrabec


Jernej Skrabec (3):
  sunxi: Add clocks for DE2/HDMI/TCON
  sunxi: video: Add video driver for H3 SoC
  sunxi: Enable H3 video driver in defconfigs

 arch/arm/include/asm/arch-sunxi/clock_sun6i.h |   43 +
 arch/arm/include/asm/arch-sunxi/cpu_sun4i.h   |    8 +
 arch/arm/include/asm/arch-sunxi/display2.h    |  377 +++++++++
 arch/arm/mach-sunxi/clock_sun6i.c             |   28 +
 board/sunxi/Kconfig                           |    4 +-
 configs/orangepi_2_defconfig                  |    1 +
 configs/orangepi_lite_defconfig               |    1 +
 configs/orangepi_one_defconfig                |    1 +
 configs/orangepi_pc_defconfig                 |    1 +
 configs/orangepi_pc_plus_defconfig            |    1 +
 configs/orangepi_plus2e_defconfig             |    1 +
 configs/orangepi_plus_defconfig               |    1 +
 drivers/video/Makefile                        |    1 +
 drivers/video/sunxi_display2.c                | 1037 +++++++++++++++++++++++++
 include/configs/sunxi-common.h                |   17 +-
 scripts/config_whitelist.txt                  |    1 +
 16 files changed, 1516 insertions(+), 7 deletions(-)
 create mode 100644 arch/arm/include/asm/arch-sunxi/display2.h
 create mode 100644 drivers/video/sunxi_display2.c

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2.10.2