1# SPDX-License-Identifier: MIT 2 3config DRM_DISPLAY_HELPER 4 tristate "DRM Display Helpers" 5 depends on DRM 6 help 7 DRM helpers for display adapters. 8 9config DRM_DISPLAY_DP_AUX_BUS 10 tristate "DRM DisplayPort AUX bus support" 11 depends on DRM 12 depends on OF || COMPILE_TEST 13 14config DRM_DISPLAY_DP_AUX_CEC 15 bool "Enable DisplayPort CEC-Tunneling-over-AUX HDMI support" 16 depends on DRM 17 depends on DRM_DISPLAY_HELPER 18 depends on DRM_DISPLAY_DP_HELPER 19 select CEC_CORE 20 help 21 Choose this option if you want to enable HDMI CEC support for 22 DisplayPort/USB-C to HDMI adapters. 23 24 Note: not all adapters support this feature, and even for those 25 that do support this they often do not hook up the CEC pin. 26 27config DRM_DISPLAY_DP_AUX_CHARDEV 28 bool "DRM DisplayPort AUX Interface" 29 depends on DRM 30 depends on DRM_DISPLAY_HELPER 31 depends on DRM_DISPLAY_DP_HELPER 32 help 33 Choose this option to enable a /dev/drm_dp_auxN node that allows to 34 read and write values to arbitrary DPCD registers on the DP aux 35 channel. 36 37config DRM_DISPLAY_DP_HELPER 38 bool "DRM DisplayPort Helpers" 39 depends on DRM_DISPLAY_HELPER 40 help 41 DRM display helpers for DisplayPort. 42 43config DRM_DISPLAY_DP_TUNNEL 44 bool "DRM DisplayPort tunnels support" 45 depends on DRM_DISPLAY_DP_HELPER 46 help 47 Enable support for DisplayPort tunnels. This allows drivers to use 48 DP tunnel features like the Bandwidth Allocation mode to maximize the 49 BW utilization for display streams on Thunderbolt links. 50 51config DRM_DISPLAY_DP_TUNNEL_STATE_DEBUG 52 bool "Enable debugging the DP tunnel state" 53 depends on REF_TRACKER 54 depends on DRM_DISPLAY_DP_TUNNEL 55 depends on DEBUG_KERNEL 56 depends on EXPERT 57 help 58 Enables debugging the DP tunnel manager's state, including the 59 consistency of all managed tunnels' reference counting and the state of 60 streams contained in tunnels. 61 62 If in doubt, say "N". 63 64config DRM_DISPLAY_HDCP_HELPER 65 bool "DRM HDCD Helpers" 66 depends on DRM_DISPLAY_HELPER 67 help 68 DRM display helpers for HDCP. 69 70config DRM_DISPLAY_HDMI_HELPER 71 bool "DRM HDMI Helpers" 72 depends on DRM_DISPLAY_HELPER 73 help 74 DRM display helpers for HDMI. 75