From: Tom Chung Date: Wed, 19 Jun 2024 06:03:55 +0000 (+0800) Subject: drm/amd/display: Add refresh rate range check X-Git-Tag: v6.11-rc1~141^2~7^2~59 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9023ec5d55f3991aaa76f3c87a6fc4552e776172;p=thirdparty%2Flinux.git drm/amd/display: Add refresh rate range check [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 Reviewed-by: Rodrigo Siqueira Signed-off-by: Jerry Zuo Signed-off-by: Tom Chung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 2c96863d320e1..e64592e49568b 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -11991,9 +11991,11 @@ 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 &&