drm/i915: clear crt hotplug compare voltage field before setting

Noticed while reviewing the hotplug irq setup code. Just looks better. Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
git-mirror · Mar 27, 2013 · 85fc95b · 85fc95b
1 parent ed23abd
commit 85fc95b
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
@@ -2775,6 +2775,7 @@ static void i915_hpd_irq_setup(struct drm_device *dev)
 		*/
 		if (IS_G4X(dev))
 			hotplug_en |= CRT_HOTPLUG_ACTIVATION_PERIOD_64;
+		hotplug_en &= ~CRT_HOTPLUG_VOLTAGE_COMPARE_MASK;
 		hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50;
 
 		/* Ignore TV since it's buggy */