linux-yocto/drivers/gpu/drm/display/Kconfig
Dmitry Baryshkov 9a71cf8b6f
drm/bridge-connector: reset the HDMI connector state
On HDMI connectors which use drm_bridge_connector and DRM_BRIDGE_OP_HDMI
IGT chokes on the max_bpc property in several kms_properties tests due
to the drm_bridge_connector failing to reset HDMI-related
properties.

Call __drm_atomic_helper_connector_hdmi_reset() if the
drm_bridge_connector has bridge_hdmi.

It is impossible to call this function from HDMI bridges, none of the
bridge callbacks correspond to the drm_connector_funcs::reset().

Fixes: 6b4468b0c6 ("drm/bridge-connector: implement glue code for HDMI connector")
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240903-drm-bridge-connector-fix-hdmi-reset-v5-3-daebde6d9857@linaro.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
2024-09-03 10:18:31 +02:00

2.0 KiB

SPDX-License-Identifier: MIT

config DRM_DISPLAY_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.

if DRM_DISPLAY_HELPER

config DRM_BRIDGE_CONNECTOR bool select DRM_DISPLAY_HDMI_STATE_HELPER help DRM connector implementation terminating DRM bridge chains.

config DRM_DISPLAY_DP_AUX_CEC bool "Enable DisplayPort CEC-Tunneling-over-AUX HDMI support" 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.

config DRM_DISPLAY_DP_AUX_CHARDEV bool "DRM DP AUX Interface" 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_DISPLAY_DP_HELPER bool 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_DP_TUNNEL_STATE_DEBUG 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 help DRM display helpers for HDCP.

config DRM_DISPLAY_HDMI_HELPER bool help DRM display helpers for HDMI.

config DRM_DISPLAY_HDMI_STATE_HELPER bool select DRM_DISPLAY_HDMI_HELPER help DRM KMS state helpers for HDMI.

endif # DRM_DISPLAY_HELPER