[PATCH v2 0/4] Add support for the mt8167 display pipeline

[Luca Leonardo Scorcia <l.scorcia@gmail.com>]

This series adds support for (almost) all display blocks of mt8167.
This SoC supports a DSI or DPI display and has HDMI output via a second
DPI block wired to the HDMI phy.

All the hard work was already upstreamed in the past, now all that's left
is some glue. In the first two patches we add support for the DPI output
blocks. In the third one we describe all the possible combinations of the
SoC display pipeline and in the last one we add the required nodes to the
SoC dtsi.

The final outputs of the display pipeline in the SoC dtsi are
intentionally left not connected to allow board dts to specify their
own output node.

I said almost all display blocks because HDMI output is not included in
this patch. I have it tested and working at all supported resolutions, but
since it needs some fixes in clocks and a new phy driver, I will send it
in a separate series.

The series has been tested on a Lenovo Smart Clock 2 (DSI), a Xiaomi Mi
Smart Clock 2 (DSI), and a Sony Playstation Classic Mini (HDMI via DPI).
Unfortunately I couldn't find an actual device using a DPI display, but
since DPI1-HDMI works, I feel confident saying that the clocks divisors
are correct.

Changes in v2:
- Fixed some copy-and-paste error in MMSYS routes spotted by Sashiko [2].

Initial version: [1]

[1] https://lore.kernel.org/linux-mediatek/20260918175736.355305-1-l.scorcia@gmail.com/
[2] https://sashiko.dev/#/message/20260918180358.81A1D1F000FF%40smtp.kernel.org

Luca Leonardo Scorcia (4):
  dt-bindings: display: mediatek: dpi: Add compatible for mt8167
  drm/mediatek: Add support for mt8167 Digital Parallel Interface
  soc: mediatek: mt8167-mmsys: add routes for all display paths
  arm64: dts: mediatek: mt8167: Add DRM nodes

 .../display/mediatek/mediatek,dpi.yaml        |   1 +
 arch/arm64/boot/dts/mediatek/mt8167.dtsi      | 369 ++++++++++++++++++
 drivers/gpu/drm/mediatek/mtk_dpi.c            |  23 ++
 drivers/gpu/drm/mediatek/mtk_drm_drv.c        |   2 +
 drivers/soc/mediatek/mt8167-mmsys.h           | 193 ++++++++-
 5 files changed, 579 insertions(+), 9 deletions(-)

-- 
2.43.0