[RFC 00/13] arm64: allwinner: Add A64 DE2 pipeline support

[Jagan Teki]

Allwinner A64 has display engine pipeline like other Allwinner SOC's A83T/H3/H5.

A64 DE2 behaviour similar to Allwinner A83T where mixer0, connected to tcon0 with
RGB, LVDS MIPI-DSI and mixer1, connected to tcon1 with HDMI.
This series merely concentrated on HDMI pipeline and rest will add eventually.

patch 1: dt-bindings for a64 DE2 CCU

patch 2: a64 DE2 CCU node addition

patch 3: dt-bindings for a64 DE2 pipeline

patch 4 - 5: dt-bindings for a64 mixer0 and tcon-lcd

patch 6: a64 DE2 pipeline node addition

patch 7 - 8: dt-bindings for a64 HDMI and HDMI PHY

patch 9: a64 HDMI nodes addition

patch 10 - 11: dt-bindings for a64 mixer1 and tcon-tv

patch 12: a64 HDMI pipeline

patch 13: enable HDMI out on bananpi-m64

Tested HDMI on bananapi-m64 (along with DE2 SRAM C changes from [1]
thread), able to detect the HDMI but, no penguins on screen.

Request for any suggestions.

Test log on Bananpi-m64:
[    0.247631] sun4i-drm display-engine: bound 1100000.mixer (ops sun8i_mixer_ops)
[    0.256717] sun4i-drm display-engine: bound 1200000.mixer (ops sun8i_mixer_ops)
[    0.256783] sun4i-tcon 1c0c000.lcd-controller: Missing LVDS properties, Please upgrade your DT
[    0.256792] sun4i-tcon 1c0c000.lcd-controller: LVDS output disabled
[    0.257081] sun4i-drm display-engine: No panel or bridge found... RGB output disabled
[    0.257099] sun4i-drm display-engine: bound 1c0c000.lcd-controller (ops sun4i_tcon_ops)
[    0.257273] sun4i-drm display-engine: No panel or bridge found... RGB output disabled
[    0.257288] sun4i-drm display-engine: bound 1c0d000.lcd-controller (ops sun4i_tcon_ops)
[    0.258176] sun8i-dw-hdmi 1ee0000.hdmi: Detected HDMI TX controller v1.32a with HDCP (sun8i_dw_hdmi_p)
[    0.258596] sun8i-dw-hdmi 1ee0000.hdmi: registered DesignWare HDMI I2C bus driver
[    0.259188] sun4i-drm display-engine: bound 1ee0000.hdmi (ops sun8i_dw_hdmi_ops)
[    0.259199] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    0.259205] [drm] No driver support for vblank timestamp query.
[    0.259308] [drm] Cannot find any crtc or sizes
[    0.259824] [drm] Initialized sun4i-drm 1.0.0 20150629 for display-engine on minor 0

[1] https://lkml.org/lkml/2018/3/16/1096

Jagan Teki (13):
  dt-bindings: clock: Add compatible for A64 DE2 CCU
  arm64: dts: allwinner: a64: Add DE2 CCU
  bindings: display: Add compatible for A64 DE2 pipeline
  bindings: display: Add compatible for A64 Mixer0
  bindings: display: Add compatible for A64 tcon-lcd
  arm64: dts: allwinner: a64: Add DE2 pipeline
  bindings: display: Add compatible for A64 HDMI
  bindings: display: Add compatible for A64 HDMI PHY
  arm64: dts: allwinner: a64: Add HDMI support
  bindings: display: Add compatible for A64 Mixer1
  bindings: display: Add compatible for A64 tcon-tv
  arm64: dts: allwinner: a64: Add HDMI pipeline
  arm64: dts: allwinner: a64: bananapi-m64: Enable HDMI output

 .../devicetree/bindings/clock/sun8i-de2.txt        |   1 +
 .../bindings/display/sunxi/sun4i-drm.txt           |   7 +
 .../boot/dts/allwinner/sun50i-a64-bananapi-m64.dts |  26 +++
 arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi      | 181 +++++++++++++++++++++
 drivers/gpu/drm/sun4i/sun4i_drv.c                  |   1 +
 include/dt-bindings/clock/sun50i-a64-ccu.h         |   2 +
 6 files changed, 218 insertions(+)

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2.14.3