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drm/amd/display: restore invalid MSA timing check for freesync

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This restores the original behavior that gets min/max freq from EDID and
only set DP/eDP connector as freesync capable if "sink device is capable
of rendering incoming video stream without MSA timing parameters", i.e.,
`allow_invalid_MSA_timing_params` is true. The condition was mistakenly
removed by 0159f88a99 ("drm/amd/display: remove redundant freesync
parser for DP").

CC: Mario Limonciello <mario.limonciello@amd.com>
CC: Alex Hung <alex.hung@amd.com>
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/3915
Fixes: 0159f88a99 ("drm/amd/display: remove redundant freesync parser for DP")
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Melissa Wen 2025-01-27 21:41:10 -03:00 committed by Alex Deucher
parent 9078a5bfa2
commit 7f2b5237e3
1 changed files with 8 additions and 4 deletions
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4
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@ -12326,10 +12326,14 @@ void amdgpu_dm_update_freesync_caps(struct drm_connector *connector,
if (edid && (sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT ||
sink->sink_signal == SIGNAL_TYPE_EDP)) {
if (amdgpu_dm_connector->dc_link &&
amdgpu_dm_connector->dc_link->dpcd_caps.allow_invalid_MSA_timing_param) {
amdgpu_dm_connector->min_vfreq = connector->display_info.monitor_range.min_vfreq;
amdgpu_dm_connector->max_vfreq = connector->display_info.monitor_range.max_vfreq;
if (amdgpu_dm_connector->max_vfreq - amdgpu_dm_connector->min_vfreq > 10)
freesync_capable = true;
}
parse_amd_vsdb(amdgpu_dm_connector, edid, &vsdb_info);
if (vsdb_info.replay_mode) {