1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 6a4d5bc17697..20375cc7f82d 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1385,7 +1385,9 @@ static void intel_sdvo_get_config(struct intel_encoder *encoder,
                          >> SDVO_PORT_MULTIPLY_SHIFT) + 1;
         }
 
-        dotclock = pipe_config->port_clock / pipe_config->pixel_multiplier;
+        dotclock = pipe_config->port_clock;
+        if (pipe_config->pixel_multiplier)
+                dotclock /= pipe_config->pixel_multiplier;
 
         if (HAS_PCH_SPLIT(dev))
                 ironlake_check_encoder_dotclock(pipe_config, dotclock);