Commit a132b5a5 authored Mar 30, 2018 by Sjoerd Simons Committed by Jyri Sarha Jul 05, 2018

drm/tilcdc: Defer probe if there are no connectors



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>
Signed-off-by: Jyri Sarha <jsarha@ti.com>

parent 021c9179

drivers/gpu/drm/tilcdc/tilcdc_drv.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -378,7 +378,7 @@ 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;
		}