media: am437x-vpfe: TRY_FMT ioctl is not really trying anything

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The try_fmt was not actually trying out the provided format
but merely returning the current format basically like get_fmt.
In addition set_fmt should first invoked try_fmt to validate the
given format before applying it to the hardware.

To fix all of these the whole get/try/set ioctl functions had to
be reworked.
When calculating the bytesperline/stride and sizeimage format
member we don't need to locally store the current value of
bytesperpixel as it can easily get derived dynamically.

Signed-off-by: Benoit Parrot <bparrot@ti.com>
Acked-by: Lad Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

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This commit is contained in:

Benoit Parrot 2019-09-20 14:05:51 -03:00 • committed by Mauro Carvalho Chehab

parent f60de889d7

commit 750ef54b7e

2 changed files with 171 additions and 171 deletions

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338

drivers/media/platform/am437x/am437x-vpfe.c

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4

drivers/media/platform/am437x/am437x-vpfe.h

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