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",
ret = ov2680_parse_dt(sensor);
if (ret < 0)
- return -EINVAL;
+ return ret;
ret = ov2680_mode_init(sensor);
if (ret < 0)