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Subject: media: ivsc: ace: probe ace device after IPU bridge is initialized.
Author: Wentong Wu <wentong...@intel.com>
Date: Tue Aug 29 13:24:28 2023 +0800
During probe ivsc ace device, acpi_dev_clear_dependencies() will be
called to clear the consumer and supplier relationship between camera
sensor device and ivsc device. But IPU bridge will setup the connection
swnodes for ivsc device and camera sensor device based on this consumer
and supplier relationship. This patch defers ivsc ace's probe to make
sure IPU bridge is initialized before this consumer and supplier
relationship between camera sensor device and IVSC device is cleared.
Signed-off-by: Wentong Wu <wentong...@intel.com>
Signed-off-by: Sakari Ailus <sakari.ai...@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
drivers/media/pci/intel/ivsc/mei_ace.c | 3 +++
1 file changed, 3 insertions(+)
---
diff --git a/drivers/media/pci/intel/ivsc/mei_ace.c
b/drivers/media/pci/intel/ivsc/mei_ace.c
index d4ecc2b4a7f0..3622271c71c8 100644
--- a/drivers/media/pci/intel/ivsc/mei_ace.c
+++ b/drivers/media/pci/intel/ivsc/mei_ace.c
@@ -406,6 +406,9 @@ static int mei_ace_setup_dev_link(struct mei_ace *ace)
if (!csi_dev) {
ret = -EPROBE_DEFER;
goto err;
+ } else if (!dev_fwnode(csi_dev)) {
+ ret = -EPROBE_DEFER;
+ goto err_put;
}
/* setup link between mei_ace and mei_csi */
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