drm/nouveau: fix headless mode

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nouveau_display.c

@@ -477,7 +477,7 @@ nouveau_display_create(struct drm_device *dev)
 	drm_kms_helper_poll_init(dev);
 	drm_kms_helper_poll_disable(dev);
 
-	if (drm->vbios.dcb.entries) {
+	if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
 		static const u16 oclass[] = {
 			GM107_DISP,
 			GK110_DISP,

drivers/gpu/drm/nouveau/nouveau_drm.c

@@ -306,6 +306,7 @@ static int nouveau_drm_probe(struct pci_dev *pdev,
 #ifdef CONFIG_X86
 	boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 #endif
+	if (nouveau_modeset != 2)
 		remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 	kfree(aper);