diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index 61ed515..c97681a 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -63,8 +63,6 @@ int drm_irq_by_busid(struct drm_device *dev, void *data,
 	    p->devnum != PCI_SLOT(dev->pdev->devfn) || p->funcnum != PCI_FUNC(dev->pdev->devfn))
 		return -EINVAL;
 
-	p->irq = dev->pdev->irq;
-
 	DRM_DEBUG("%d:%d:%d => IRQ %d\n", p->busnum, p->devnum, p->funcnum,
 		  p->irq);
 
@@ -127,12 +125,9 @@ static int drm_irq_install(struct drm_device * dev)
 	if (drm_core_check_feature(dev, DRIVER_IRQ_SHARED))
 		sh_flags = IRQF_SHARED;
 
-	ret = request_irq(dev->pdev->irq, dev->driver->irq_handler,
+	ret = request_irq(drm_dev_to_irq(dev), dev->driver->irq_handler,
 			  sh_flags, dev->devname, dev);
-	/* Expose the device irq number to drivers that want to export it for
-	 * whatever reason.
-	 */
-	dev->irq = dev->pdev->irq;
+
 	if (ret < 0) {
 		mutex_lock(&dev->struct_mutex);
 		dev->irq_enabled = 0;
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index c2f584f..1a7eedb 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -107,7 +107,6 @@ static int drm_fill_in_dev(struct drm_device * dev, struct pci_dev *pdev,
 #ifdef __alpha__
 	dev->hose = pdev->sysdata;
 #endif
-	dev->irq = pdev->irq;
 
 	if (drm_ht_create(&dev->map_hash, 12)) {
 		return -ENOMEM;
diff --git a/drivers/gpu/drm/mga/mga_state.c b/drivers/gpu/drm/mga/mga_state.c
index d3f8aad..b710fab 100644
--- a/drivers/gpu/drm/mga/mga_state.c
+++ b/drivers/gpu/drm/mga/mga_state.c
@@ -1022,7 +1022,7 @@ static int mga_getparam(struct drm_device *dev, void *data, struct drm_file *fil
 
 	switch (param->param) {
 	case MGA_PARAM_IRQ_NR:
-		value = dev->irq;
+		value = drm_dev_to_irq(dev);
 		break;
 	case MGA_PARAM_CARD_TYPE:
 		value = dev_priv->chipset;
diff --git a/drivers/gpu/drm/r128/r128_state.c b/drivers/gpu/drm/r128/r128_state.c
index 51a9afc..f7a5b57 100644
--- a/drivers/gpu/drm/r128/r128_state.c
+++ b/drivers/gpu/drm/r128/r128_state.c
@@ -1629,7 +1629,7 @@ static int r128_getparam(struct drm_device *dev, void *data, struct drm_file *fi
 
 	switch (param->param) {
 	case R128_PARAM_IRQ_NR:
-		value = dev->irq;
+		value = drm_dev_to_irq(dev);
 		break;
 	default:
 		return -EINVAL;
diff --git a/drivers/gpu/drm/radeon/radeon_state.c b/drivers/gpu/drm/radeon/radeon_state.c
index 11c146b..5d7153f 100644
--- a/drivers/gpu/drm/radeon/radeon_state.c
+++ b/drivers/gpu/drm/radeon/radeon_state.c
@@ -2997,7 +2997,7 @@ static int radeon_cp_getparam(struct drm_device *dev, void *data, struct drm_fil
 		value = GET_SCRATCH(2);
 		break;
 	case RADEON_PARAM_IRQ_NR:
-		value = dev->irq;
+		value = drm_dev_to_irq(dev);
 		break;
 	case RADEON_PARAM_GART_BASE:
 		value = dev_priv->gart_vm_start;
diff --git a/drivers/gpu/drm/via/via_irq.c b/drivers/gpu/drm/via/via_irq.c
index c6bb978..53d90b3 100644
--- a/drivers/gpu/drm/via/via_irq.c
+++ b/drivers/gpu/drm/via/via_irq.c
@@ -339,9 +339,6 @@ int via_wait_irq(struct drm_device *dev, void *data, struct drm_file *file_priv)
 	drm_via_irq_t *cur_irq = dev_priv->via_irqs;
 	int force_sequence;
 
-	if (!dev->irq)
-		return -EINVAL;
-
 	if (irqwait->request.irq >= dev_priv->num_irqs) {
 		DRM_ERROR("Trying to wait on unknown irq %d\n",
 			  irqwait->request.irq);
diff --git a/drivers/gpu/drm/via/via_mm.c b/drivers/gpu/drm/via/via_mm.c
index e640949..f694cb5 100644
--- a/drivers/gpu/drm/via/via_mm.c
+++ b/drivers/gpu/drm/via/via_mm.c
@@ -93,8 +93,7 @@ int via_final_context(struct drm_device *dev, int context)
 	/* Last context, perform cleanup */
 	if (dev->ctx_count == 1 && dev->dev_private) {
 		DRM_DEBUG("Last Context\n");
-		if (dev->irq)
-			drm_irq_uninstall(dev);
+		drm_irq_uninstall(dev);
 		via_cleanup_futex(dev_priv);
 		via_do_cleanup_map(dev);
 	}
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 1c1b13e..72b0806 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -714,7 +714,6 @@ struct drm_device {
 
 	/** \name Context support */
 	/*@{ */
-	int irq;			/**< Interrupt used by board */
 	int irq_enabled;		/**< True if irq handler is enabled */
 	__volatile__ long context_flag;	/**< Context swapping flag */
 	__volatile__ long interrupt_flag; /**< Interruption handler flag */
@@ -773,6 +772,11 @@ struct drm_device {
 	/*@} */
 };
 
+static inline int drm_dev_to_irq(struct drm_device *dev)
+{
+	return dev->pdev->irq;
+}
+
 static __inline__ int drm_core_check_feature(struct drm_device *dev,
 					     int feature)
 {