| # 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_DP_TUNNEL |
| bool |
| select DRM_DISPLAY_DP_HELPER |
| help |
| Enable support for DisplayPort tunnels. This allows drivers to use |
| DP tunnel features like the Bandwidth Allocation mode to maximize the |
| BW utilization for display streams on Thunderbolt links. |
| |
| config DRM_DISPLAY_DEBUG_DP_TUNNEL_STATE |
| bool "Enable debugging the DP tunnel state" |
| depends on REF_TRACKER |
| depends on DRM_DISPLAY_DP_TUNNEL |
| depends on DEBUG_KERNEL |
| depends on EXPERT |
| help |
| Enables debugging the DP tunnel manager's state, including the |
| consistency of all managed tunnels' reference counting and the state of |
| streams contained in tunnels. |
| |
| If in doubt, say "N". |
| |
| 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. |
