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media: ov13b10: Defer probe if no endpoint found

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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@intel.com>
Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
Reviewed-by: Tommaso Merciai <tomm.merciai@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Bingbu Cao 2023-06-13 06:55:43 +02:00 committed by Mauro Carvalho Chehab
parent a828002f38
commit b7602d625b
1 changed files with 4 additions and 4 deletions
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8
drivers/media/i2c/ov13b10.c
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@ -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)