diff options
| author | Hans Verkuil <hans.verkuil@cisco.com> | 2018-07-11 15:29:07 +0200 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2018-07-13 17:58:19 +0300 |
| commit | 2c6d1fffa1d9b0a5b5ac1a23be9ad64abe60910d (patch) | |
| tree | 0220fb44421d7894c2ee6dfee69143e9d1c9703c /drivers/gpu/drm/Kconfig | |
| parent | cf19fa2cfa4e9b5458b6f3503c5317dd1a2bfbae (diff) | |
drm: add support for DisplayPort CEC-Tunneling-over-AUX
This adds support for the DisplayPort CEC-Tunneling-over-AUX
feature that is part of the DisplayPort 1.3 standard.
Unfortunately, not all DisplayPort/USB-C to HDMI adapters with a
chip that has this capability actually hook up the CEC pin, so
even though a CEC device is created, it may not actually work.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180711132909.25409-2-hverkuil@xs4all.nl
Diffstat (limited to 'drivers/gpu/drm/Kconfig')
| -rw-r--r-- | drivers/gpu/drm/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index a8054dde49b5..cb88528e7b10 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -122,6 +122,16 @@ config DRM_LOAD_EDID_FIRMWARE default case is N. Details and instructions how to build your own EDID data are given in Documentation/EDID/HOWTO.txt. +config DRM_DP_CEC + bool "Enable DisplayPort CEC-Tunneling-over-AUX HDMI support" + select CEC_CORE + help + Choose this option if you want to enable HDMI CEC support for + DisplayPort/USB-C to HDMI adapters. + + Note: not all adapters support this feature, and even for those + that do support this they often do not hook up the CEC pin. + config DRM_TTM tristate depends on DRM && MMU |