From: Niklas Söderlund Date: Sun, 28 Nov 2021 13:24:47 +0000 (+0100) Subject: media: rcar-vin: Disallow unbinding and binding of individual VINs X-Git-Tag: block-5.17-2022-01-21~35^2~90 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=e37e82188bc9114a9e285d003569dcad5f6d5612;p=linux-block.git media: rcar-vin: Disallow unbinding and binding of individual VINs The VIN driver have an internal concept of capture groups that covers multiple instances of the driver. This is handled using the shared media graph and a single notifier shared between all VIN instances. This design do not work well if an individual VIN where to be unbound on its own. The design could be improved up on to allow for this but would require large changes in the v4l2-async framework. To avoid the situation suppress the bind and unbind nodes in sysfs. Signed-off-by: Niklas Söderlund Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/platform/rcar-vin/rcar-core.c b/drivers/media/platform/rcar-vin/rcar-core.c index 1d92cc8ede8f..6d4cffdbf47a 100644 --- a/drivers/media/platform/rcar-vin/rcar-core.c +++ b/drivers/media/platform/rcar-vin/rcar-core.c @@ -1620,6 +1620,7 @@ static SIMPLE_DEV_PM_OPS(rvin_pm_ops, rvin_suspend, rvin_resume); static struct platform_driver rcar_vin_driver = { .driver = { .name = "rcar-vin", + .suppress_bind_attrs = true, .pm = &rvin_pm_ops, .of_match_table = rvin_of_id_table, },