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From: Hans Verkuil <hverkuil@xs4all.nl>
i2c_unregister_device must be called on kernels >= 2.6.26, not just for
kernels >= 2.6.29.
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Mostly due to ir-kdb-i2c, but also due to two new drivers, compilation
with kernels older than 2.6.29 were broken.
This quick and dirty changeset, generated semi-automatically, restaures
backport to the subsystem by adding lots of #ifs.
It is possible to write a much more small changeset that would restore
backport without adding so many ifs, but, due to the lack of time, this
will also solve it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Randy Dunlap <randy.dunlap@oracle.com>
Build fails when CONFIG_I2C=n, so handle that case in the if block:
drivers/built-in.o: In function `v4l2_device_unregister':
(.text+0x157821): undefined reference to `i2c_unregister_device'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Until now I relied on i2c_del_adapter to unregister the i2c_clients for
me, however, if the i2c bus is a platform bus then it is never deleted.
So instead I need to unregister i2c clients when unregistering the
v4l2_device.
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Add a utility function that can be used to setup the v4l2_device's name
field in a standard manner.
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Call v4l2_device_disconnect when the parent of a hotpluggable device
disconnects. This ensures that you do not have a pointer to a device that
is no longer present.
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Remain consistent in the naming: fields pointing to v4l2_device should
be called v4l2_dev. There are too many device-like entities without
adding to the confusion by mixing naming conventions.
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Some drivers (e.g. for ISA devices) have no parent device because there
is no associated bus driver. Allow the parent device to be NULL in
those cases when registering v4l2_device.
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Kay Sievers <kay.sievers@vrfy.org>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
/home/v4l/master/v4l/v4l2-device.c:32:2: warning: Using plain integer as NULL pointer
/home/v4l/master/v4l/v4l2-device.c:64:2: warning: Using plain integer as NULL pointer
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Start implementing a proper v4l2 framework as discussed during the
Linux Plumbers Conference 2008.
Introduces v4l2_device (for device instances) and v4l2_subdev (representing
sub-device instances).
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Reviewed-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Reviewed-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Reviewed-by: Andy Walls <awalls@radix.net>
Reviewed-by: David Brownell <david-b@pacbell.net>
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