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

Kevin Hilman khilman at ti.com
Wed Feb 29 13:07:08 EST 2012

"Menon, Nishanth" <nm at ti.com> writes:

> 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.

OK, then the changelog needs an update to reflect that.


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