edc4e8518e
This reverts commit d674858ff9, as helper
code should always be selected by the driver that needs it, for the
convenience of the final user configuring a kernel.
The user who configures a kernel should not need to know which helpers
are needed for the driver he is interested in. Making a driver depend
on helper code means that the user needs to know which helpers to enable
first, which is very user-unfriendly.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patchwork.freedesktop.org/patch/msgid/3db958e3f4002e26cd963596d810c37feb315fb3.1713780345.git.geert+renesas@glider.be
Signed-off-by: Maxime Ripard <mripard@kernel.org>
72 lines
1.9 KiB
Text
72 lines
1.9 KiB
Text
# SPDX-License-Identifier: MIT
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config DRM_DISPLAY_HELPER
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tristate
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depends on DRM
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help
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DRM helpers for display adapters.
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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 || COMPILE_TEST
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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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depends on DRM && DRM_DISPLAY_HELPER
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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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depends on DRM && DRM_DISPLAY_HELPER
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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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depends on DRM_DISPLAY_HELPER
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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_HDCP_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 HDCP.
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config DRM_DISPLAY_HDMI_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 HDMI.
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