| Message ID | 20180330131553.9060-1-sjoerd.simons@collabora.co.uk |
|---|---|
| State | Accepted |
| Commit | a132b5a5081ca106193a02e0835e01db7c4055ec |
| Headers | show |
| Series | drm/tilcdc: Defer probe if there are no connectors | expand |
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c index 1afde61f1247..59f0a44bb6e3 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c @@ -380,7 +380,7 @@ static int tilcdc_init(struct drm_driver *ddrv, struct device *dev) if (!priv->external_connector && ((priv->num_encoders == 0) || (priv->num_connectors == 0))) { dev_err(dev, "no encoders/connectors found\n"); - ret = -ENXIO; + ret = -EPROBE_DEFER; goto init_failed; }
During probe there may not be any connectors yet if e.g. the panel failed or hasn't been probed yet. I hitting this in practice the panels probing was being delayed due to using a gpio backlight. Fix this by returning -EPROBE_DEFER so the probing will be retried. Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk> --- drivers/gpu/drm/tilcdc/tilcdc_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)