Brendan Szymanski
9a769db9af
Backport the generic DRM HDMI CEC helpers (drm_hdmi_cec_helper and drm_hdmi_cec_notifier_helper) along with the drm_connector CEC state, drm_bridge CEC callbacks, and drm_bridge_connector glue that the adapter registration path requires. Propagate the HDMI physical address to the CEC adapter from the HDMI state helper hotplug path. Implement the CEC adapter in dw-hdmi-qp: register definitions, IRQ handling, transmit and receive paths, logical address programming, and enable/disable. Pass the named "cec" IRQ and the HDMI reference clock rate down from dw_hdmi_qp-rockchip so the timer base is initialised from the actual reference clock. Enable CONFIG_DRM_DW_HDMI_QP_CEC in tart_defconfig.
109 lines
2.7 KiB
Text
109 lines
2.7 KiB
Text
# SPDX-License-Identifier: MIT
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config DRM_DISPLAY_DP_AUX_BUS
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tristate
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depends on DRM
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depends on OF
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config DRM_DISPLAY_HELPER
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tristate
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depends on DRM
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select CEC_CORE if DRM_DISPLAY_DP_AUX_CEC || DRM_DISPLAY_HDMI_CEC_HELPER || CEC_NOTIFIER
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help
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DRM helpers for display adapters.
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if DRM_DISPLAY_HELPER
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config DRM_BRIDGE_CONNECTOR
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bool
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select DRM_DISPLAY_HDMI_AUDIO_HELPER
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select DRM_DISPLAY_HDMI_STATE_HELPER
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help
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DRM connector implementation terminating DRM bridge chains.
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config DRM_DISPLAY_DP_AUX_CEC
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bool "Enable DisplayPort CEC-Tunneling-over-AUX HDMI support"
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select DRM_DISPLAY_DP_HELPER
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select CEC_CORE
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help
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Choose this option if you want to enable HDMI CEC support for
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DisplayPort/USB-C to HDMI adapters.
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Note: not all adapters support this feature, and even for those
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that do support this they often do not hook up the CEC pin.
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config DRM_DISPLAY_DP_AUX_CHARDEV
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bool "DRM DP AUX Interface"
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select DRM_DISPLAY_DP_HELPER
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help
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Choose this option to enable a /dev/drm_dp_auxN node that allows to
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read and write values to arbitrary DPCD registers on the DP aux
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channel.
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config DRM_DISPLAY_DP_HELPER
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bool
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help
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DRM display helpers for DisplayPort.
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config DRM_DISPLAY_DP_TUNNEL
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bool
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select DRM_DISPLAY_DP_HELPER
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help
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Enable support for DisplayPort tunnels. This allows drivers to use
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DP tunnel features like the Bandwidth Allocation mode to maximize the
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BW utilization for display streams on Thunderbolt links.
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config DRM_DISPLAY_DP_TUNNEL_STATE_DEBUG
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bool "Enable debugging the DP tunnel state"
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depends on REF_TRACKER
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depends on DRM_DISPLAY_DP_TUNNEL
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depends on DEBUG_KERNEL
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depends on EXPERT
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help
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Enables debugging the DP tunnel manager's state, including the
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consistency of all managed tunnels' reference counting and the state of
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streams contained in tunnels.
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If in doubt, say "N".
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config DRM_DISPLAY_DSC_HELPER
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bool
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depends on DRM_DISPLAY_HELPER
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help
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DRM display helpers for VESA DSC (used by DSI and DisplayPort).
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config DRM_DISPLAY_HDCP_HELPER
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bool
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help
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DRM display helpers for HDCP.
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config DRM_DISPLAY_HDMI_AUDIO_HELPER
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bool
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help
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DRM display helpers for HDMI Audio functionality (generic HDMI Codec
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implementation).
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config DRM_DISPLAY_HDMI_CEC_HELPER
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bool
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help
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DRM display helpers for HDMI CEC implementation.
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config DRM_DISPLAY_HDMI_CEC_NOTIFIER_HELPER
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def_bool CEC_NOTIFIER
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help
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DRM display helpers for HDMI CEC notifiers implementation.
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config DRM_DISPLAY_HDMI_HELPER
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bool
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help
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DRM display helpers for HDMI.
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config DRM_DISPLAY_HDMI_STATE_HELPER
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bool
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select DRM_DISPLAY_HDMI_AUDIO_HELPER
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select DRM_DISPLAY_HDMI_HELPER
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help
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DRM KMS state helpers for HDMI.
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endif # DRM_DISPLAY_HELPER
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