media: nxp: imx8-isi: Drop unneeded downscaling factor clamping

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The total scaling factor including bi-linear downscaling and decimation
is clamped to 16. The bilinear factor calculation therefore produceds
values guaranteed not to exceed the maximum factor of 2.0. The clamping
is unneeded, drop it.

Note that the ISI_DOWNSCALE_THRESHOLD value of 0x4000 is incorrect, as
that would be a factor of 4.0. This was inconsequential given that the
computed factor never exceeded 0x2000.

Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Guoniu Zhou <guoniu.zhou@nxp.com>
Link: https://patch.msgid.link/20260520202738.86782-1-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>

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Laurent Pinchart 2026-05-20 22:27:38 +02:00 • committed by Hans Verkuil

parent fc312f830d

commit 34fd8a99bd

1 changed files with 1 additions and 4 deletions

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drivers/media/platform/nxp/imx8-isi/imx8-isi-hw.c

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