162306a36Sopenharmony_ci# SPDX-License-Identifier: MIT 262306a36Sopenharmony_ci 362306a36Sopenharmony_ciconfig DRM_DP_AUX_BUS 462306a36Sopenharmony_ci tristate 562306a36Sopenharmony_ci depends on DRM 662306a36Sopenharmony_ci depends on OF || COMPILE_TEST 762306a36Sopenharmony_ci 862306a36Sopenharmony_ciconfig DRM_DISPLAY_HELPER 962306a36Sopenharmony_ci tristate 1062306a36Sopenharmony_ci depends on DRM 1162306a36Sopenharmony_ci help 1262306a36Sopenharmony_ci DRM helpers for display adapters. 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_ciconfig DRM_DISPLAY_DP_HELPER 1562306a36Sopenharmony_ci bool 1662306a36Sopenharmony_ci depends on DRM_DISPLAY_HELPER 1762306a36Sopenharmony_ci help 1862306a36Sopenharmony_ci DRM display helpers for DisplayPort. 1962306a36Sopenharmony_ci 2062306a36Sopenharmony_ciconfig DRM_DISPLAY_HDCP_HELPER 2162306a36Sopenharmony_ci bool 2262306a36Sopenharmony_ci depends on DRM_DISPLAY_HELPER 2362306a36Sopenharmony_ci help 2462306a36Sopenharmony_ci DRM display helpers for HDCP. 2562306a36Sopenharmony_ci 2662306a36Sopenharmony_ciconfig DRM_DISPLAY_HDMI_HELPER 2762306a36Sopenharmony_ci bool 2862306a36Sopenharmony_ci depends on DRM_DISPLAY_HELPER 2962306a36Sopenharmony_ci help 3062306a36Sopenharmony_ci DRM display helpers for HDMI. 3162306a36Sopenharmony_ci 3262306a36Sopenharmony_ciconfig DRM_DP_AUX_CHARDEV 3362306a36Sopenharmony_ci bool "DRM DP AUX Interface" 3462306a36Sopenharmony_ci depends on DRM && DRM_DISPLAY_HELPER 3562306a36Sopenharmony_ci select DRM_DISPLAY_DP_HELPER 3662306a36Sopenharmony_ci help 3762306a36Sopenharmony_ci Choose this option to enable a /dev/drm_dp_auxN node that allows to 3862306a36Sopenharmony_ci read and write values to arbitrary DPCD registers on the DP aux 3962306a36Sopenharmony_ci channel. 4062306a36Sopenharmony_ci 4162306a36Sopenharmony_ciconfig DRM_DP_CEC 4262306a36Sopenharmony_ci bool "Enable DisplayPort CEC-Tunneling-over-AUX HDMI support" 4362306a36Sopenharmony_ci depends on DRM && DRM_DISPLAY_HELPER 4462306a36Sopenharmony_ci select DRM_DISPLAY_DP_HELPER 4562306a36Sopenharmony_ci select CEC_CORE 4662306a36Sopenharmony_ci help 4762306a36Sopenharmony_ci Choose this option if you want to enable HDMI CEC support for 4862306a36Sopenharmony_ci DisplayPort/USB-C to HDMI adapters. 4962306a36Sopenharmony_ci 5062306a36Sopenharmony_ci Note: not all adapters support this feature, and even for those 5162306a36Sopenharmony_ci that do support this they often do not hook up the CEC pin. 52