Messages in this thread Patch in this message | | | From | Sjoerd Simons <> | Subject | [PATCH] drm/tilcdc: Defer probe if there are no connectors | Date | Fri, 30 Mar 2018 15:15:53 +0200 |
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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(-)
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; } -- 2.16.3
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