[PATCH 04/14] ARM: OMAP3+: SmartReflex: Add a shutdown hook

[Menon, Nishanth]

On Tue, Feb 28, 2012 at 16:40, Kevin Hilman <khilman at ti.com> wrote:
> Jean Pihet <jean.pihet at newoldbits.com> writes:
>
>> From: Nishanth Menon <nm at ti.com>
>>
>> SmartReflex fix for erratum ID i724.
>>
>> Since OMAP's VP and PRM modules do not get reset by warm reset,
>> we should ensure that proper shutdown procedure is followed prior
>> to allowing the kernel to reboot back up.
>
> prior to reboot?  how?
>
> This patch only ensures a proper shutdown if the kernel goes down
> cleanly.
>
> How is this handled on reboot?
There is no known solution for watchdog resets(part of the errata WA
limitation) :( - the best we could do was to make shutdown path safe -
this includes s/w (userspace triggered) reboots.

Regards,
Nishanth Menon