drm/nvd0-/disp: handle case where display engine is missing/disabled

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

1 files changed, 1 insertions, 6 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
index e09817df7934..3e7287675ecf 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -2051,19 +2051,14 @@ nouveau_bios_posted(struct drm_device *dev)
         struct nouveau_drm *drm = nouveau_drm(dev);
         unsigned htotal;
 
-        if (nv_device(drm->device)->card_type >= NV_50) {
-                if (NVReadVgaCrtc(dev, 0, 0x00) == 0 &&
-                    NVReadVgaCrtc(dev, 0, 0x1a) == 0)
-                        return false;
+        if (nv_device(drm->device)->card_type >= NV_50)
                 return true;
-        }
 
         htotal  = NVReadVgaCrtc(dev, 0, 0x06);
         htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x01) << 8;
         htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x20) << 4;
         htotal |= (NVReadVgaCrtc(dev, 0, 0x25) & 0x01) << 10;
         htotal |= (NVReadVgaCrtc(dev, 0, 0x41) & 0x01) << 11;
-
         return (htotal != 0);
 }