1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
index 77f1d7c6ea3a..9416e0f5c1db 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
@@ -672,8 +672,12 @@ int amdgpu_atombios_get_clock_info(struct amdgpu_device *adev)
                 /* disp clock */
                 adev->clock.default_dispclk =
                         le32_to_cpu(firmware_info->info_21.ulDefaultDispEngineClkFreq);
-                if (adev->clock.default_dispclk == 0)
-                        adev->clock.default_dispclk = 54000; /* 540 Mhz */
+                /* set a reasonable default for DP */
+                if (adev->clock.default_dispclk < 53900) {
+                        DRM_INFO("Changing default dispclk from %dMhz to 600Mhz\n",
+                                 adev->clock.default_dispclk / 100);
+                        adev->clock.default_dispclk = 60000;
+                }
                 adev->clock.dp_extclk =
                         le16_to_cpu(firmware_info->info_21.usUniphyDPModeExtClkFreq);
                 adev->clock.current_dispclk = adev->clock.default_dispclk;