drm/amd/display: Enable PSR and Replay on DCN4 variant and fix AUX instance

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[Why]
Enable PSR and Panel Replay on a DCN4 variant for display power
savings. On links without native I2C (no DDC pin), the AUX channel
must use aux_hw_inst to avoid NULL pointer access during PSR and
Replay setup.

[How]
Enable PSR and Replay in the DCN4 variant panel config defaults.
Add no_ddc_pin check in dp_setup_panel_replay(),
edp_setup_freesync_replay(), and fsft_send_msg_to_fw() to use
link->aux_hw_inst when dp_connector_no_native_i2c and no_ddc_pin
are set.

Reviewed-by: Matthew Stewart <matthew.stewart2@amd.com>
Signed-off-by: Gabe Teeger <gabe.teeger@amd.com>
Signed-off-by: George Zhang <george.zhang@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Gabe Teeger 2026-06-05 16:21:29 -04:00 • committed by Alex Deucher

parent 98c692c5c4

commit 68737239e8

2 changed files with 13 additions and 4 deletions

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6

drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_panel_replay.c

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11

drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c

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