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media: i2c: Defer probe if not endpoint found

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The ov8865 driver is one of those that can be connected to a CIO2
device by the cio2-bridge code. This means that the absence of an
endpoint for this device is not necessarily fatal, as one might be
built by the cio2-bridge when it probes. Return -EPROBE_DEFER if no
endpoint is found rather than a fatal error.

Signed-off-by: Daniel Scally <djrscally@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Daniel Scally 2021-11-23 01:00:05 +01:00 • committed by Mauro Carvalho Chehab
parent 651d1f2040
commit ba0c8045ea
1 changed files with 2 additions and 4 deletions
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6
drivers/media/i2c/ov8865.c
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@ -2796,10 +2796,8 @@ static int ov8865_probe(struct i2c_client *client)
/* Graph Endpoint */ /* Graph Endpoint */
handle = fwnode_graph_get_next_endpoint(dev_fwnode(dev), NULL); handle = fwnode_graph_get_next_endpoint(dev_fwnode(dev), NULL);
if (!handle) { if (!handle)
dev_err(dev, "unable to find endpoint node\n"); return -EPROBE_DEFER;
return -EINVAL;
}
sensor->endpoint.bus_type = V4L2_MBUS_CSI2_DPHY; sensor->endpoint.bus_type = V4L2_MBUS_CSI2_DPHY;