diff options
| -rw-r--r-- | drivers/media/i2c/ov2680.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/media/i2c/ov2680.c b/drivers/media/i2c/ov2680.c index a8c257f3bcd6..d4664581b49b 100644 --- a/drivers/media/i2c/ov2680.c +++ b/drivers/media/i2c/ov2680.c @@ -717,11 +717,23 @@ static int ov2680_check_id(struct ov2680_dev *sensor) static int ov2680_parse_dt(struct ov2680_dev *sensor) { struct device *dev = sensor->dev; + struct fwnode_handle *ep_fwnode; struct gpio_desc *gpio; unsigned int rate = 0; int i, ret; /* + * Sometimes the fwnode graph is initialized by the bridge driver. + * Bridge drivers doing this may also add GPIO mappings, wait for this. + */ + ep_fwnode = fwnode_graph_get_next_endpoint(dev_fwnode(dev), NULL); + if (!ep_fwnode) + return dev_err_probe(dev, -EPROBE_DEFER, + "waiting for fwnode graph endpoint\n"); + + fwnode_handle_put(ep_fwnode); + + /* * The pin we want is named XSHUTDN in the datasheet. Linux sensor * drivers have standardized on using "powerdown" as con-id name * for powerdown or shutdown pins. Older DTB files use "reset", @@ -801,7 +813,7 @@ static int ov2680_probe(struct i2c_client *client) ret = ov2680_parse_dt(sensor); if (ret < 0) - return -EINVAL; + return ret; ret = ov2680_mode_init(sensor); if (ret < 0) |