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

From: [email-masked] (Kevin Hilman)
Date: Wed, 29 Feb 2012 10:07:08 -0800

"Menon, Nishanth" <[email-masked]> writes:

> On Tue, Feb 28, 2012 at 16:40, Kevin Hilman <[email-masked]> wrote:
>> Jean Pihet <[email-masked]> writes:
>>
>>> From: Nishanth Menon <[email-masked]>
>>>
>>> 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.

Kevin