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Subject: media: rcar-isp: Disallow unbind of devices
Author: Niklas Söderlund <niklas.soderlund+rene...@ragnatech.se>
Date: Wed Jan 31 19:04:52 2024 +0100
It is not safe to unbind and then rebind a subdevice in the rcar-vin
pipeline. Depending on what subdevice and in what order a device is
rebound the rcar-vin driver can misbehave.
Until this can be solved suppress the files in sysfs which allows for
this. This is in line with what is done for other subdevices exclusively
use with the rcar-vin pipeline, e.g. rcar-csi2.
Signed-off-by: Niklas Söderlund <niklas.soderlund+rene...@ragnatech.se>
Reviewed-by: Sakari Ailus <sakari.ai...@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
drivers/media/platform/renesas/rcar-isp.c | 1 +
1 file changed, 1 insertion(+)
---
diff --git a/drivers/media/platform/renesas/rcar-isp.c
b/drivers/media/platform/renesas/rcar-isp.c
index 530d65fc546b..4512ac338ca5 100644
--- a/drivers/media/platform/renesas/rcar-isp.c
+++ b/drivers/media/platform/renesas/rcar-isp.c
@@ -518,6 +518,7 @@ static void risp_remove(struct platform_device *pdev)
static struct platform_driver rcar_isp_driver = {
.driver = {
.name = "rcar-isp",
+ .suppress_bind_attrs = true,
.of_match_table = risp_of_id_table,
},
.probe = risp_probe,
