[v1,0/7] drm/mediatek: Add support for HDMIv2 and DDCv2 IPs

Message

AngeloGioacchino Del Regno Nov. 20, 2024, 12:45 p.m. UTC

This series adds support for the HDMI-TX v2 Encoder and DDCv2, as found
in MT8195, MT8188 and their variants.

Tested on Genio 700 EVK:
 - ABIST ON: ok, pattern generated internally from HDMI is shown on
   HDMI screen at the correct resolution;
 - ABIST OFF + DPI Pattern Generator ON: ok, pattern coming from DPI is
   shown on HDMI screen at the correct resolution;
 - Can negotiate up to 4k60

and on MT8395 Radxa NIO 12L:
 - ABIST ON: ok, pattern generated internally from HDMI is shown on
   HDMI screen at the correct resolution;
 - ABIST OFF + DPI Pattern Generator ON: ok, pattern coming from DPI is
   shown on HDMI screen at the correct resolution;
 - Dual screen usecase validated (DSI + HDMI 3840x2160p 60Hz)
 - Can negotiate up to 4k60

Please note that this submission does *not* include support for HDCP
nor for CECv2, as I want this to be upstream before implementing
additional features which are not strictly required for simple
HDMI output.

AngeloGioacchino Del Regno (6):
  dt-bindings: display: mediatek: Add binding for HDMIv2 DDC
  dt-bindings: display: mediatek: Add binding for MT8195 HDMI-TX v2
  drm/mediatek: mtk_cec: Switch to register as module_platform_driver
  drm/mediatek: mtk_hdmi_ddc: Switch to register as
    module_platform_driver
  drm/mediatek: mtk_hdmi: Split driver and add common probe function
  drm/mediatek: Introduce HDMI/DDC v2 for MT8195/MT8188

Guillaume Ranquet (1):
  drm/mediatek: hdmi: Use regmap instead of iomem for main registers

 .../mediatek/mediatek,mt8195-hdmi-ddc.yaml    |   41 +
 .../mediatek/mediatek,mt8195-hdmi.yaml        |  150 ++
 drivers/gpu/drm/mediatek/Kconfig              |   19 +-
 drivers/gpu/drm/mediatek/Makefile             |    5 +
 drivers/gpu/drm/mediatek/mtk_cec.c            |    5 +-
 drivers/gpu/drm/mediatek/mtk_hdmi.c           |  843 ++--------
 drivers/gpu/drm/mediatek/mtk_hdmi.h           |   14 -
 drivers/gpu/drm/mediatek/mtk_hdmi_common.c    |  375 +++++
 drivers/gpu/drm/mediatek/mtk_hdmi_common.h    |  200 +++
 drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c       |    4 +-
 drivers/gpu/drm/mediatek/mtk_hdmi_ddc_v2.c    |  401 +++++
 drivers/gpu/drm/mediatek/mtk_hdmi_regs_v2.h   |  249 +++
 drivers/gpu/drm/mediatek/mtk_hdmi_v2.c        | 1460 +++++++++++++++++
 13 files changed, 3060 insertions(+), 705 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,mt8195-hdmi-ddc.yaml
 create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,mt8195-hdmi.yaml
 delete mode 100644 drivers/gpu/drm/mediatek/mtk_hdmi.h
 create mode 100644 drivers/gpu/drm/mediatek/mtk_hdmi_common.c
 create mode 100644 drivers/gpu/drm/mediatek/mtk_hdmi_common.h
 create mode 100644 drivers/gpu/drm/mediatek/mtk_hdmi_ddc_v2.c
 create mode 100644 drivers/gpu/drm/mediatek/mtk_hdmi_regs_v2.h
 create mode 100644 drivers/gpu/drm/mediatek/mtk_hdmi_v2.c