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drm/amd/display: Add refresh rate range check

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[Why]
We only enable the VRR while monitor usable refresh rate range
is greater than 10 Hz.
But we did not check the range in DRM_EDID_FEATURE_CONTINUOUS_FREQ
case.

[How]
Add a refresh rate range check before set the freesync_capable flag
in DRM_EDID_FEATURE_CONTINUOUS_FREQ case.

Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Jerry Zuo <jerry.zuo@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tom Chung 2024-06-19 14:03:55 +08:00 committed by Alex Deucher
parent 6b8487cdf9
commit 74ad26b36d
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@ -11310,9 +11310,11 @@ void amdgpu_dm_update_freesync_caps(struct drm_connector *connector,
if (is_dp_capable_without_timing_msa(adev->dm.dc,
amdgpu_dm_connector)) {
if (edid->features & DRM_EDID_FEATURE_CONTINUOUS_FREQ) {
freesync_capable = true;
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;
} else {
edid_check_required = edid->version > 1 ||
(edid->version == 1 &&