The ov8865 driver waits for the endpoint fwnode to show up in case this fwnode is created by a bridge-driver. It does this by returning -EPROBE_DEFER, but it does not use dev_err_probe() so no reason for deferring gets registered. After 30 seconds the kernel logs a warning that the probe is still deferred, which looks like this: [ 33.952061] i2c i2c-INT347A:00: deferred probe pending: (reason unknown) Use dev_err_probe() when returning -EPROBE_DEFER to register the probe deferral reason changing the error to: deferred probe pending: waiting for fwnode graph endpoint Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx> --- drivers/media/i2c/ov8865.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/media/i2c/ov8865.c b/drivers/media/i2c/ov8865.c index 95ffe7536aa6..a2138f7988aa 100644 --- a/drivers/media/i2c/ov8865.c +++ b/drivers/media/i2c/ov8865.c @@ -2991,7 +2991,8 @@ static int ov8865_probe(struct i2c_client *client) handle = fwnode_graph_get_next_endpoint(dev_fwnode(dev), NULL); if (!handle) - return -EPROBE_DEFER; + return dev_err_probe(dev, -EPROBE_DEFER, + "waiting for fwnode graph endpoint\n"); sensor->endpoint.bus_type = V4L2_MBUS_CSI2_DPHY; -- 2.46.2
