diff options
| -rw-r--r-- | drivers/media/i2c/hi556.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/drivers/media/i2c/hi556.c b/drivers/media/i2c/hi556.c index 38c77d515786..c54cd49e56a1 100644 --- a/drivers/media/i2c/hi556.c +++ b/drivers/media/i2c/hi556.c @@ -1206,8 +1206,18 @@ static int hi556_check_hwcfg(struct device *dev) int ret = 0; unsigned int i, j; - if (!fwnode) - return -ENXIO; + /* + * Sometimes the fwnode graph is initialized by the bridge driver, + * wait for this. + */ + ep = fwnode_graph_get_next_endpoint(fwnode, NULL); + if (!ep) + return -EPROBE_DEFER; + + ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg); + fwnode_handle_put(ep); + if (ret) + return ret; ret = fwnode_property_read_u32(fwnode, "clock-frequency", &mclk); if (ret) { @@ -1220,15 +1230,6 @@ static int hi556_check_hwcfg(struct device *dev) return -EINVAL; } - ep = fwnode_graph_get_next_endpoint(fwnode, NULL); - if (!ep) - return -ENXIO; - - ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg); - fwnode_handle_put(ep); - if (ret) - return ret; - if (bus_cfg.bus.mipi_csi2.num_data_lanes != 2) { dev_err(dev, "number of CSI2 data lanes %d is not supported", bus_cfg.bus.mipi_csi2.num_data_lanes); |