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[Unipi] Avoid hang on reboot after updating EEPROM firmware #1127

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[Unipi] Avoid hang on reboot after updating EEPROM firmware #1127

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Commits on May 24, 2024

  1. unipi-kernel-modules: Allow forced deinitialization of drivers 

    in the unipi module. This module cannot be unloaded at runtime,
because it contains multiple drivers running in different threads.

Force unloading it will cause a system hang, similar to the one
observed if it registeres led drivers twice and rfkill attempts
to unregister its' triggers during reboot from the devices created
by them.

Changelog-entry: unipi-kernel-modules: Allow forced deinitialization of drivers
Signed-off-by: Alexandru Costache <alexandru@balena.io>
    @acostach
    acostach committed May 24, 2024
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  2. rpi-eeprom: Unload and deregister unipi modules prior the EEPROM update 

    to avoid any interference with flashrom as well with rfkill
unregister, and prevent reboot from hanging.

Signed-off-by: Alexandru Costache <alexandru@balena.io>
    @acostach
    acostach committed May 24, 2024
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