drm/dp: Add drm_dp_downstream_mode()

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The downstream facing port caps in the DPCD can give us a hint
as to what kind of display mode the sink can use if it doesn't
have an EDID. Use that information to pick a suitable mode.

v2: Use Returns: for kdoc (Lyude)
    Add kdocs for drm_display_mode_from_cea_vic() (Lyude)

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200904115354.25336-14-ville.syrjala@linux.intel.com
Reviewed-by: Lyude Paul <lyude@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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This commit is contained in:

Ville Syrjälä 2020-09-04 14:53:49 +03:00

parent b7feffd584

commit 7af655bce2

4 changed files with 98 additions and 0 deletions

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54

drivers/gpu/drm/drm_dp_helper.c

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28

drivers/gpu/drm/drm_edid.c

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12

include/drm/drm_dp_helper.h

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4

include/drm/drm_edid.h

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