11e0f6642SThomas Zimmermann# SPDX-License-Identifier: MIT 21e0f6642SThomas Zimmermann 31e0f6642SThomas Zimmermannconfig DRM_DP_AUX_BUS 41e0f6642SThomas Zimmermann tristate 51e0f6642SThomas Zimmermann depends on DRM 6*87627111SYueHaibing depends on OF || COMPILE_TEST 71e0f6642SThomas Zimmermann 81e0f6642SThomas Zimmermannconfig DRM_DISPLAY_HELPER 91e0f6642SThomas Zimmermann tristate 101e0f6642SThomas Zimmermann depends on DRM 111e0f6642SThomas Zimmermann help 121e0f6642SThomas Zimmermann DRM helpers for display adapters. 131e0f6642SThomas Zimmermann 141e0f6642SThomas Zimmermannconfig DRM_DISPLAY_DP_HELPER 151e0f6642SThomas Zimmermann bool 161e0f6642SThomas Zimmermann depends on DRM_DISPLAY_HELPER 171e0f6642SThomas Zimmermann help 181e0f6642SThomas Zimmermann DRM display helpers for DisplayPort. 191e0f6642SThomas Zimmermann 206a99099fSThomas Zimmermannconfig DRM_DISPLAY_HDCP_HELPER 216a99099fSThomas Zimmermann bool 226a99099fSThomas Zimmermann depends on DRM_DISPLAY_HELPER 236a99099fSThomas Zimmermann help 246a99099fSThomas Zimmermann DRM display helpers for HDCP. 256a99099fSThomas Zimmermann 264fc8cb47SThomas Zimmermannconfig DRM_DISPLAY_HDMI_HELPER 274fc8cb47SThomas Zimmermann bool 284fc8cb47SThomas Zimmermann depends on DRM_DISPLAY_HELPER 294fc8cb47SThomas Zimmermann help 304fc8cb47SThomas Zimmermann DRM display helpers for HDMI. 314fc8cb47SThomas Zimmermann 321e0f6642SThomas Zimmermannconfig DRM_DP_AUX_CHARDEV 331e0f6642SThomas Zimmermann bool "DRM DP AUX Interface" 34b2aa405eSJavier Martinez Canillas depends on DRM && DRM_DISPLAY_HELPER 35b2aa405eSJavier Martinez Canillas select DRM_DISPLAY_DP_HELPER 361e0f6642SThomas Zimmermann help 371e0f6642SThomas Zimmermann Choose this option to enable a /dev/drm_dp_auxN node that allows to 381e0f6642SThomas Zimmermann read and write values to arbitrary DPCD registers on the DP aux 391e0f6642SThomas Zimmermann channel. 401e0f6642SThomas Zimmermann 411e0f6642SThomas Zimmermannconfig DRM_DP_CEC 421e0f6642SThomas Zimmermann bool "Enable DisplayPort CEC-Tunneling-over-AUX HDMI support" 43b2aa405eSJavier Martinez Canillas depends on DRM && DRM_DISPLAY_HELPER 44b2aa405eSJavier Martinez Canillas select DRM_DISPLAY_DP_HELPER 451e0f6642SThomas Zimmermann select CEC_CORE 461e0f6642SThomas Zimmermann help 471e0f6642SThomas Zimmermann Choose this option if you want to enable HDMI CEC support for 481e0f6642SThomas Zimmermann DisplayPort/USB-C to HDMI adapters. 491e0f6642SThomas Zimmermann 501e0f6642SThomas Zimmermann Note: not all adapters support this feature, and even for those 511e0f6642SThomas Zimmermann that do support this they often do not hook up the CEC pin. 52