drivers/gpu/drm/display/Kconfig

   1 # SPDX-License-Identifier: MIT
   2
   3 config DRM_DP_AUX_BUS
   4         tristate
   5         depends on DRM
   6         depends on OF || COMPILE_TEST
   7
   8 config DRM_DISPLAY_HELPER
   9         tristate
  10         depends on DRM
  11         help
  12           DRM helpers for display adapters.
  13
  14 config DRM_DISPLAY_DP_HELPER
  15         bool
  16         depends on DRM_DISPLAY_HELPER
  17         help
  18           DRM display helpers for DisplayPort.
  19
  20 config DRM_DISPLAY_HDCP_HELPER
  21         bool
  22         depends on DRM_DISPLAY_HELPER
  23         help
  24           DRM display helpers for HDCP.
  25
  26 config DRM_DISPLAY_HDMI_HELPER
  27         bool
  28         depends on DRM_DISPLAY_HELPER
  29         help
  30           DRM display helpers for HDMI.
  31
  32 config DRM_DP_AUX_CHARDEV
  33         bool "DRM DP AUX Interface"
  34         depends on DRM && DRM_DISPLAY_HELPER
  35         select DRM_DISPLAY_DP_HELPER
  36         help
  37           Choose this option to enable a /dev/drm_dp_auxN node that allows to
  38           read and write values to arbitrary DPCD registers on the DP aux
  39           channel.
  40
  41 config DRM_DP_CEC
  42         bool "Enable DisplayPort CEC-Tunneling-over-AUX HDMI support"
  43         depends on DRM && DRM_DISPLAY_HELPER
  44         select DRM_DISPLAY_DP_HELPER
  45         select CEC_CORE
  46         help
  47           Choose this option if you want to enable HDMI CEC support for
  48           DisplayPort/USB-C to HDMI adapters.
  49
  50           Note: not all adapters support this feature, and even for those
  51           that do support this they often do not hook up the CEC pin.