[v1,0/6] drm/mediatek: dpi: Add support for MT8195/8188 and Pattern Generator

Message

AngeloGioacchino Del Regno Nov. 20, 2024, 12:44 p.m. UTC

Add support for the direct connection DPI found in MT8195 and MT8188 SoCs.

Bonus in this series is the addition of support for the Pattern Generator
found in the DPI HW: since I needed this for debugging during development,
I had to code in the actual support bits and it looked like a waste of
time to just remove it.
I instead decided to clean it up and upstream it, as this will anyway come
handy for multiple things, of which the most important (imo) are:
 - Adding support for new SoCs in the future will be less time consuming
   as this driver already has the pattern generator in;
 - CI Testing might be able to make use of this to validate that the
   data that comes out is not garbled (so, to help testing display
   support in an automated manner).

AngeloGioacchino Del Regno (6):
  dt-bindings: display: mediatek: dpi: Add MT8195 and MT8188 compat
  drm/mediatek: mtk_dpi: Add support for Pattern Generator in debugfs
  drm/mediatek: mtk_dpi: Use an array for pixclk factor calculation
  drm/mediatek: mtk_dpi: Move pixel clock setting flow to function
  drm/mediatek: mtk_dpi: Add checks for reg_h_fre_con existence
  drm/mediatek: Add support for MT8195 Digital Parallel Interface

 .../display/mediatek/mediatek,dpi.yaml        |   5 +
 drivers/gpu/drm/mediatek/mtk_dpi.c            | 311 +++++++++++++-----
 drivers/gpu/drm/mediatek/mtk_dpi_regs.h       |  10 +
 drivers/gpu/drm/mediatek/mtk_drm_drv.c        |   2 +
 4 files changed, 252 insertions(+), 76 deletions(-)