drm/i915/dp: Add link configuration filter for modeset computation

Add link_config_filter to link_config_limits to track the set of valid
link configurations during modeset state computation. Keep the existing
min/max rate and lane count limits for now, until all users are
converted to use the configuration filter.

Add the helpers required to select the maximum configuration from the
currently allowed configuration set. This will be used by follow-up
changes as well to query the maximum link configuration without having
to iterate the configurations.

v2:
- Rebase on changes using a filter object instead of a mask of
  configuration indices.
- Rebase on changes using an iteration object.
v3:
- Add TODO: label to code comment about min/max link config limit
  removal. (Luca)

Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20260701153204.4124150-13-imre.deak@intel.com

0 files changed, 0 insertions, 0 deletions