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# SPDX-License-Identifier: MIT
config DRM_DP_AUX_BUS
tristate
depends on DRM
depends on OF || COMPILE_TEST
config DRM_DISPLAY_HELPER
tristate
depends on DRM
help
DRM helpers for display adapters.
config DRM_DISPLAY_DP_HELPER
bool
depends on DRM_DISPLAY_HELPER
help
DRM display helpers for DisplayPort.
config DRM_DISPLAY_HDCP_HELPER
bool
depends on DRM_DISPLAY_HELPER
help
DRM display helpers for HDCP.
config DRM_DISPLAY_HDMI_HELPER
bool
depends on DRM_DISPLAY_HELPER
help
DRM display helpers for HDMI.
config DRM_DP_AUX_CHARDEV
bool "DRM DP AUX Interface"
depends on DRM && DRM_DISPLAY_HELPER
select DRM_DISPLAY_DP_HELPER
help
Choose this option to enable a /dev/drm_dp_auxN node that allows to
read and write values to arbitrary DPCD registers on the DP aux
channel.
config DRM_DP_CEC
bool "Enable DisplayPort CEC-Tunneling-over-AUX HDMI support"
depends on DRM && DRM_DISPLAY_HELPER
select DRM_DISPLAY_DP_HELPER
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.
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