summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/rcar-du
diff options
context:
space:
mode:
authorLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>2015-02-24 03:51:26 +0200
committerLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>2015-03-03 16:16:06 +0200
commit931b7336214bec8538babfde5eaa6833e179c804 (patch)
tree056893b248a2ff0be7aebd96fe0cd9941ca94186 /drivers/gpu/drm/rcar-du
parent0cd90a542885a1272b58f96bbe4010588105e1bc (diff)
drm: rcar-du: Disable fbdev emulation when no connector is present
fbdev emulation requires at least one connector, and will fail to initialize if no connector has been successfully instantiated. Disable it in that case and print an informational message instead of failing probe with a confusing fbdev emulation error message. It could be argued that probe should fail when no connector is present, but the DU could still be useful in that case with the to-be-implemented memory write-back support. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Diffstat (limited to 'drivers/gpu/drm/rcar-du')
-rw-r--r--drivers/gpu/drm/rcar-du/rcar_du_kms.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
index aebbcde82ddf..888df404932e 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
@@ -448,12 +448,17 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu)
drm_kms_helper_poll_init(dev);
- fbdev = drm_fbdev_cma_init(dev, 32, dev->mode_config.num_crtc,
- dev->mode_config.num_connector);
- if (IS_ERR(fbdev))
- return PTR_ERR(fbdev);
+ if (dev->mode_config.num_connector) {
+ fbdev = drm_fbdev_cma_init(dev, 32, dev->mode_config.num_crtc,
+ dev->mode_config.num_connector);
+ if (IS_ERR(fbdev))
+ return PTR_ERR(fbdev);
- rcdu->fbdev = fbdev;
+ rcdu->fbdev = fbdev;
+ } else {
+ dev_info(rcdu->dev,
+ "no connector found, disabling fbdev emulation\n");
+ }
return 0;
}