nouveau: don't fail driver load if no display hw present.

If we get back ENODEV don't fail load. There are nvidia devices
that don't have display blocks and the driver should work on those.

Fixes: 15740541e8f0 ("drm/nouveau/devinit/tu102-: prepare for GSP-RM")
Link: https://gitlab.freedesktop.org/drm/nouveau/-/issues/270
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231115143933.261287-1-airlied@gmail.com

diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index d8c92521226d97c582e4b6f64c69fc90b469762a..f28f9a857458682f80f0a8687ed2edd92fa921d9 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -726,6 +726,11 @@ nouveau_display_create(struct drm_device *dev)
 
        if (nouveau_modeset != 2) {
                ret = nvif_disp_ctor(&drm->client.device, "kmsDisp", 0, &disp->disp);
+               /* no display hw */
+               if (ret == -ENODEV) {
+                       ret = 0;
+                       goto disp_create_err;
+               }
 
                if (!ret && (disp->disp.outp_mask || drm->vbios.dcb.entries)) {
                        nouveau_display_create_properties(dev);