[PATCH v3 0/6] Introduce new mode validation callbacks

[Jose Abreu]

This series is a follow up from the discussion at [1]. We start by
introducing crtc->mode_valid(), encoder->mode_valid() and
bridge->mode_valid() callbacks which will be used in followup
patches and also by cleaning the documentation a little bit.

We proceed by introducing new helpers to call this new callbacks
at 2/6.

At 3/6 a helper function is introduced that calls all mode_valid()
from a set of bridges.

Next, at 4/6 we modify the connector probe helper so that only modes
which are supported by a given bridge+encoder+crtc combination are
probbed.

At 5/6 we call all the mode_valid() callbacks for a given pipeline,
except the connector->mode_valid one, so that the mode is validated.
This is done before calling mode_fixup().

Finally, at 6/6 we use the new crtc->mode_valid() callback in arcpgu
and remove the atomic_check() callback.

[1] https://patchwork.kernel.org/patch/9702233/

Jose Abreu (6):
  drm: Add crtc/encoder/bridge->mode_valid() callbacks
  drm: Add drm_{crtc/encoder/connector}_mode_valid()
  drm: Introduce drm_bridge_mode_valid()
  drm: Use new mode_valid() helpers in connector probe helper
  drm: Use mode_valid() in atomic modeset
  drm: arc: Use crtc->mode_valid() callback

Cc: Carlos Palminha <palminha at synopsys.com>
Cc: Alexey Brodkin <abrodkin at synopsys.com>
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Cc: Dave Airlie <airlied at linux.ie>
Cc: Andrzej Hajda <a.hajda at samsung.com>
Cc: Archit Taneja <architt at codeaurora.org>

 drivers/gpu/drm/arc/arcpgu_crtc.c          |  39 ++++++----
 drivers/gpu/drm/drm_atomic_helper.c        |  76 +++++++++++++++++++-
 drivers/gpu/drm/drm_bridge.c               |  33 +++++++++
 drivers/gpu/drm/drm_crtc_helper_internal.h |  13 ++++
 drivers/gpu/drm/drm_probe_helper.c         | 103 ++++++++++++++++++++++++++-
 include/drm/drm_bridge.h                   |  22 ++++++
 include/drm/drm_modeset_helper_vtables.h   | 110 ++++++++++++++++++++++-------
 7 files changed, 348 insertions(+), 48 deletions(-)

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1.9.1