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As I2C and SPI parts of the V4L2 core got split, let's take
the chance and solve the CodingStyle issues there, as reported
by checkpatch --strict.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Currently, the i2c and spi subdev creation helpers
are calling BUG() when passed a NULL v4l2_device parameter.
This makes little sense; simply returning NULL seems more
sensible.
These two helpers may already return NULL on error, so callers
should already be checking for this, or at least be prepared
for a NULL result.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Introduce a new video4linux2 i2c helper, to unregister a subdev.
This allows to get rid of yet another ifdef.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil-cisco@xs4all.nl: fix checkpatch warning]
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Separate the i2c helpers to v4l2-i2c.c, in order to get rid
of the ifdefery. No functional changes intended, this is
just a cosmetic change to organize the code better.
Given I2C is a tristate symbol, a hidden boolean symbol
is introduced, to make the conditional build easier.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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