Petri Niemela 58478b0ab6 rtcpu: Halt RTCPU using HSP_BYE before reset ...

Calling tegra_camrtc_reboot() can cause a memory fabric timeout error by
asserting reset when the RTCPU is in the middle of a memory transaction.
As a solution (similar to tegra_camrtc_halt), before asserting the
hardware reset, signaling the RTCPU to suspend its operations using
CAMRTC_HSP_BYE and waiting for RTCPU to enter WFI.

Bug 5051748

Change-Id: Iba8e4e837ee0983ffe9629e7627e0056ce1c2341
Signed-off-by: Petri Niemela <pniemela@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3317142
Reviewed-by: Semi Malinen <smalinen@nvidia.com>
Tested-by: Semi Malinen <smalinen@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Sudhir Vyas <svyas@nvidia.com>

2025-07-24 10:19:16 +00:00

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