[v4,0/2] drm/probe_helper, i915: Validate MST modes against PBN limits

Message

Lyude Paul July 13, 2020, 5:07 p.m. UTC

Something we've been missing for a while with drivers that support MST
is being able to prune modes that can't be set due to bandwidth
limitations. So, let's go ahead and add that. This also adds a new hook
that was needed, mode_valid_ctx, so that we can grab additional locks as
needed when validating modes.

Lee Shawn C (1):
  drm/i915/mst: filter out the display mode exceed sink's capability

Lyude Paul (1):
  drm/probe_helper: Add drm_connector_helper_funcs.mode_valid_ctx

 drivers/gpu/drm/drm_crtc_helper_internal.h  |   7 +-
 drivers/gpu/drm/drm_probe_helper.c          | 101 +++++++++++++-------
 drivers/gpu/drm/i915/display/intel_dp_mst.c |  55 +++++++----
 include/drm/drm_modeset_helper_vtables.h    |  42 ++++++++
 4 files changed, 151 insertions(+), 54 deletions(-)