[PATCH v4 2/3] drm/vc4: Don't try to initialize FBDEV if we're only bound to V3D.

[Eric Anholt]

The FBDEV initialization would throw an error in dmesg, when we just
want to silently not initialize fbdev on a V3D-only VC4 instance.

Signed-off-by: Eric Anholt <eric@xxxxxxxxxx>
---
 drivers/gpu/drm/vc4/vc4_kms.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c
index ad7925a9e0ea..237a504f11f0 100644
--- a/drivers/gpu/drm/vc4/vc4_kms.c
+++ b/drivers/gpu/drm/vc4/vc4_kms.c
@@ -230,10 +230,12 @@ int vc4_kms_load(struct drm_device *dev)
 
 	drm_mode_config_reset(dev);
 
-	vc4->fbdev = drm_fbdev_cma_init(dev, 32,
-					dev->mode_config.num_connector);
-	if (IS_ERR(vc4->fbdev))
-		vc4->fbdev = NULL;
+	if (dev->mode_config.num_connector) {
+		vc4->fbdev = drm_fbdev_cma_init(dev, 32,
+						dev->mode_config.num_connector);
+		if (IS_ERR(vc4->fbdev))
+			vc4->fbdev = NULL;
+	}
 
 	drm_kms_helper_poll_init(dev);
 
-- 
2.11.0