1 files changed, 2 insertions, 12 deletions

diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index 3dadfa2a852..cb49685bde0 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -74,23 +74,13 @@ int drm_irq_by_busid(struct drm_device *dev, void *data,
 {
         struct drm_irq_busid *p = data;
 
-        if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
+        if (!dev->driver->bus->irq_by_busid)
                 return -EINVAL;
 
         if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
                 return -EINVAL;
 
-        if ((p->busnum >> 8) != drm_get_pci_domain(dev) ||
-            (p->busnum & 0xff) != dev->pdev->bus->number ||
-            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);
-
-        return 0;
+        return dev->driver->bus->irq_by_busid(dev, p);
 }
 
 /*