media: imx-jpeg: Identify and handle precision correctly

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The decoder will save the precision that was detected from jpeg header
and use it later, when choosing the pixel format and also calculate
bytesperline according to precision.

The 12bit jpeg is not supported yet,
but driver shouldn't led to serious problem if user enqueue a 12 bit jpeg.
And the 12bit jpeg is supported by hardware, driver may support it later.

[hverkuil: document the new precision field]

Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reviewed-by: Mirela Rabulea <mirela.rabulea@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

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Ming Qian 2022-03-23 10:05:55 +01:00 • committed by Mauro Carvalho Chehab

parent 8dd504a3a0

commit bec0a3a673

2 changed files with 27 additions and 12 deletions

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37

drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c

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2

drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.h

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