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path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
index 71b4aec7f650..dc3360b16bda 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
@@ -953,6 +953,11 @@ static int amdgpu_cgs_get_active_displays_info(struct cgs_device *cgs_device,
(amdgpu_crtc->v_border * 2);
mode_info->vblank_time_us = vblank_lines * line_time_us;
mode_info->refresh_rate = drm_mode_vrefresh(&amdgpu_crtc->hw_mode);
+ /* we have issues with mclk switching with refresh rates
+ * over 120 hz on the non-DC code.
+ */
+ if (mode_info->refresh_rate > 120)
+ mode_info->vblank_time_us = 0;
mode_info = NULL;
}
}