media: cec: tegra_cec: don't break off msg on NACK

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The Tegra CEC hardware has a bug where, if the first attempt
to transmit a message is NACKed so the transmit is aborted,
then the second attempt can contain corrupt data.

Ensure that the full message is always transmitted to avoid hitting
this bug.

I suspect some internal state is not reset in the case of aborting
a message due to a NACK.

Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

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Hans Verkuil 2026-07-10 11:53:17 +02:00 • committed by Mauro Carvalho Chehab

parent 6eac737108

commit be627f257c

1 changed files with 12 additions and 1 deletions

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drivers/media/cec/platform/tegra/tegra_cec.c

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