1# SPDX-License-Identifier: MIT 2 3config DRM_DISPLAY_DP_AUX_BUS 4 tristate 5 depends on DRM 6 depends on OF || COMPILE_TEST 7 8config DRM_DISPLAY_HELPER 9 tristate 10 depends on DRM 11 help 12 DRM helpers for display adapters. 13 14if DRM_DISPLAY_HELPER 15 16config DRM_BRIDGE_CONNECTOR 17 bool 18 select DRM_DISPLAY_HDMI_STATE_HELPER 19 help 20 DRM connector implementation terminating DRM bridge chains. 21 22config DRM_DISPLAY_DP_AUX_CEC 23 bool "Enable DisplayPort CEC-Tunneling-over-AUX HDMI support" 24 select DRM_DISPLAY_DP_HELPER 25 select CEC_CORE 26 help 27 Choose this option if you want to enable HDMI CEC support for 28 DisplayPort/USB-C to HDMI adapters. 29 30 Note: not all adapters support this feature, and even for those 31 that do support this they often do not hook up the CEC pin. 32 33config DRM_DISPLAY_DP_AUX_CHARDEV 34 bool "DRM DP AUX Interface" 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 41config DRM_DISPLAY_DP_HELPER 42 bool 43 help 44 DRM display helpers for DisplayPort. 45 46config DRM_DISPLAY_DP_TUNNEL 47 bool 48 select DRM_DISPLAY_DP_HELPER 49 help 50 Enable support for DisplayPort tunnels. This allows drivers to use 51 DP tunnel features like the Bandwidth Allocation mode to maximize the 52 BW utilization for display streams on Thunderbolt links. 53 54config DRM_DISPLAY_DP_TUNNEL_STATE_DEBUG 55 bool "Enable debugging the DP tunnel state" 56 depends on REF_TRACKER 57 depends on DRM_DISPLAY_DP_TUNNEL 58 depends on DEBUG_KERNEL 59 depends on EXPERT 60 help 61 Enables debugging the DP tunnel manager's state, including the 62 consistency of all managed tunnels' reference counting and the state of 63 streams contained in tunnels. 64 65 If in doubt, say "N". 66 67config DRM_DISPLAY_HDCP_HELPER 68 bool 69 help 70 DRM display helpers for HDCP. 71 72config DRM_DISPLAY_HDMI_HELPER 73 bool 74 help 75 DRM display helpers for HDMI. 76 77config DRM_DISPLAY_HDMI_STATE_HELPER 78 bool 79 select DRM_DISPLAY_HDMI_HELPER 80 help 81 DRM KMS state helpers for HDMI. 82 83endif # DRM_DISPLAY_HELPER 84