With ipu bridge, endpoints may only be created when ipu bridge has
initialised. This may happen after the sensor driver has first probed.
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
drivers/media/i2c/hi556.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/media/i2c/hi556.c b/drivers/media/i2c/hi556.c
index 38c77d515786..96bae9914d52 100644
--- a/drivers/media/i2c/hi556.c
+++ b/drivers/media/i2c/hi556.c
@@ -1206,8 +1206,13 @@ 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 = fwnode_property_read_u32(fwnode, "clock-frequency", &mclk);
if (ret) {
@@ -1220,10 +1225,6 @@ 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)
--
2.44.0
