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path: root/drivers/gpu/drm/i915/intel_sdvo.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_sdvo.c')
-rw-r--r--drivers/gpu/drm/i915/intel_sdvo.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 2e1da060b0e1..4ecc076c4041 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1527,6 +1527,7 @@ intel_sdvo_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
+ int max_dotclk = to_i915(connector->dev)->max_dotclk_freq;
if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
return MODE_NO_DBLESCAN;
@@ -1537,6 +1538,9 @@ intel_sdvo_mode_valid(struct drm_connector *connector,
if (intel_sdvo->pixel_clock_max < mode->clock)
return MODE_CLOCK_HIGH;
+ if (mode->clock > max_dotclk)
+ return MODE_CLOCK_HIGH;
+
if (intel_sdvo->is_lvds) {
if (mode->hdisplay > intel_sdvo->sdvo_lvds_fixed_mode->hdisplay)
return MODE_PANEL;