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

Jean Pihet jean.pihet at newoldbits.com
Wed Feb 29 18:33:32 EST 2012

On Wed, Feb 29, 2012 at 7:07 PM, Kevin Hilman <khilman at ti.com> wrote:
> "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.
Just resent patch 04/13 with the update changelog.

> Kevin


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