drm/i915/dp: Pass atomic state to link training function

Browse source

The next patch adds sending a modeset-retry uevent after a link training
failure to all MST connectors on link. This requires the atomic state,
so pass it to intel_dp_start_link_train(). In case of SST where
retraining still happens by calling this function directly instead of a
modeset commit the atomic state is not available and NULL is passed
instead. This is ok, since in this case the encoder's only DP connector
is available from intel_dp->attached_connector not requiring the atomic
state.

v2: Add NOTE that the atomic state may not be valid for SST links and
    assert that it's valid for MST links. (Ville)

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240610164933.2947366-10-imre.deak@intel.com

...

This commit is contained in:

Imre Deak 2024-06-10 19:49:21 +03:00 • committed by Imre Deak

parent 5bd3e7ea88

commit 182c6be08b

5 changed files with 18 additions and 7 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

drivers/gpu/drm/i915/display/g4x_dp.c

View file

6

drivers/gpu/drm/i915/display/intel_ddi.c

View file

2

drivers/gpu/drm/i915/display/intel_dp.c

View file

11

drivers/gpu/drm/i915/display/intel_dp_link_training.c

View file

4

drivers/gpu/drm/i915/display/intel_dp_link_training.h

View file