drm: kill drm_device->irq

Like the last patch but adds a macro to get at the irq value instead of
dereferencing pdev directly. Should make things easier for the BSD guys and
if we ever support non-PCI devices.

Signed-off-by: Jesse Barnes <[e-mail]>
Signed-off-by: Dave Airlie <[e-mail]>

drivers/gpu/drm/drm_irq.c

···
 	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;

drivers/gpu/drm/drm_stub.c

···
 #ifdef __alpha__
 	dev->hose = pdev->sysdata;
 #endif
-	dev->irq = pdev->irq;
 
 	if (drm_ht_create(&dev->map_hash, 12)) {
 		return -ENOMEM;

drivers/gpu/drm/mga/mga_state.c

···
 
 	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;

drivers/gpu/drm/r128/r128_state.c

···
 
 	switch (param->param) {
 	case R128_PARAM_IRQ_NR:
-		value = dev->irq;
+		value = drm_dev_to_irq(dev);
 		break;
 	default:
 		return -EINVAL;

drivers/gpu/drm/radeon/radeon_state.c

···
 		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;

drivers/gpu/drm/via/via_irq.c

···
 	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);

drivers/gpu/drm/via/via_mm.c

···
 	/* 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);
 	}

include/drm/drmP.h

···
 
 	/** \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 */
···
 	/*@} */
 
 };
+
+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)