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drm/tilcdc: Defer probe if there are no connectors

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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>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
This commit is contained in:
Sjoerd Simons 2018-03-30 15:15:53 +02:00 committed by Jyri Sarha
parent 021c91791a
commit a132b5a508
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/tilcdc/tilcdc_drv.c
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@ -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;
}