1 files changed, 14 insertions, 4 deletions

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 7753249b3a95..f98ba4e6e70b 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1362,10 +1362,20 @@ static inline void intel_hpd_irq_handler(struct drm_device *dev,
         spin_lock(&dev_priv->irq_lock);
         for (i = 1; i < HPD_NUM_PINS; i++) {
 
-                WARN_ONCE(hpd[i] & hotplug_trigger &&
-                          dev_priv->hpd_stats[i].hpd_mark == HPD_DISABLED,
-                          "Received HPD interrupt (0x%08x) on pin %d (0x%08x) although disabled\n",
-                          hotplug_trigger, i, hpd[i]);
+                if (hpd[i] & hotplug_trigger &&
+                    dev_priv->hpd_stats[i].hpd_mark == HPD_DISABLED) {
+                        /*
+                         * On GMCH platforms the interrupt mask bits only
+                         * prevent irq generation, not the setting of the
+                         * hotplug bits itself. So only WARN about unexpected
+                         * interrupts on saner platforms.
+                         */
+                        WARN_ONCE(INTEL_INFO(dev)->gen >= 5 && !IS_VALLEYVIEW(dev),
+                                  "Received HPD interrupt (0x%08x) on pin %d (0x%08x) although disabled\n",
+                                  hotplug_trigger, i, hpd[i]);
+
+                        continue;
+                }
 
                 if (!(hpd[i] & hotplug_trigger) ||
                     dev_priv->hpd_stats[i].hpd_mark != HPD_ENABLED)