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4fc8cb47fc
Move DRM's HMDI helpers into the display/ subdirectoy and add it
to DRM's display helpers. Update all affected drivers. No functional
changes.
The HDMI helpers were implemented in the EDID and connector code, but
are actually unrelated. With the move to the display-helper library, we
can remove the dependency on drm_edid.{c,h} in some driver's HDMI source
files.
Several of the HDMI helpers remain in EDID code because both share parts
of their implementation internally. With better refractoring of the EDID
code, those HDMI helpers could be moved into the display-helper library
as well.
v3:
* fix Kconfig dependencies (Javier)
v2:
* reduce HDMI helpers to avoid exporting functions (Jani)
* fix include statements (Jani, Javier)
* update Kconfig symbols
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220421073108.19226-8-tzimmermann@suse.de
50 lines
1.1 KiB
Plaintext
50 lines
1.1 KiB
Plaintext
# SPDX-License-Identifier: MIT
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config DRM_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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help
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DRM helpers for display adapters.
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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_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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config DRM_DP_AUX_CHARDEV
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bool "DRM DP AUX Interface"
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depends on DRM
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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_DP_CEC
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bool "Enable DisplayPort CEC-Tunneling-over-AUX HDMI support"
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depends on DRM
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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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