From: Bingbu Cao <bingbu.cao@xxxxxxxxx>
The ov13b10 need be connected to a CIO2 or IPU device by bridge, sometimes
the bridge driver was not probed before ov13b10 driver, then the absence
of the fwnode endpoint for this device is expected, so driver return
-EPROBE_DEFER in this case to let the probe occur after bridge driver.
Signed-off-by: Hao Yao <hao.yao@xxxxxxxxx>
Signed-off-by: Bingbu Cao <bingbu.cao@xxxxxxxxx>
---
drivers/media/i2c/ov13b10.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/media/i2c/ov13b10.c b/drivers/media/i2c/ov13b10.c
index c1430044fb1e..96d3bd6ab3bd 100644
--- a/drivers/media/i2c/ov13b10.c
+++ b/drivers/media/i2c/ov13b10.c
@@ -1331,6 +1331,10 @@ static int ov13b10_check_hwcfg(struct device *dev)
if (!fwnode)
return -ENXIO;
+ ep = fwnode_graph_get_next_endpoint(fwnode, NULL);
+ if (!ep)
+ return -EPROBE_DEFER;
+
ret = fwnode_property_read_u32(dev_fwnode(dev), "clock-frequency",
&ext_clk);
if (ret) {
@@ -1344,10 +1348,6 @@ static int ov13b10_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)
--
2.40.1
