From: khilman@ti•com (Kevin Hilman)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 04/14] ARM: OMAP3+: SmartReflex: Add a shutdown hook
Date: Wed, 29 Feb 2012 10:07:08 -0800 [thread overview]
Message-ID: <878vjlfr8z.fsf@ti.com> (raw)
In-Reply-To: <CAOMWX4dbufbEJpr0nTmwTHR1xz9diMBbO=khKxvMZLWrKesJRw@mail.gmail.com> (Nishanth Menon's message of "Tue, 28 Feb 2012 16:59:14 -0600")
"Menon, Nishanth" <nm@ti•com> writes:
> On Tue, Feb 28, 2012 at 16:40, Kevin Hilman <khilman@ti•com> wrote:
>> Jean Pihet <jean.pihet@newoldbits•com> writes:
>>
>>> From: Nishanth Menon <nm@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.
Kevin
next prev parent reply other threads:[~2012-02-29 18:07 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-08 17:43 [PATCH v4 00/14] ARM: OMAP3+: SmartReflex: bugfixes and clean-ups Jean Pihet
2012-02-08 17:43 ` [PATCH 01/14] ARM: OMAP3+: SmartReflex: Layer Cleanup [V4] Jean Pihet
2012-02-28 22:37 ` Kevin Hilman
2012-02-08 17:43 ` [PATCH 02/14] ARM: OMAP3+: SmartReflex: fix err interrupt disable sequence Jean Pihet
2012-02-08 17:43 ` [PATCH 03/14] ARM: OMAP3+: SmartReflex Class3: disable errorgen before disable VP Jean Pihet
2012-02-08 17:43 ` [PATCH 04/14] ARM: OMAP3+: SmartReflex: Add a shutdown hook Jean Pihet
2012-02-28 22:40 ` Kevin Hilman
2012-02-28 22:59 ` Menon, Nishanth
2012-02-29 18:07 ` Kevin Hilman [this message]
2012-02-29 23:33 ` Jean Pihet
2012-02-08 17:43 ` [PATCH 05/14] ARM: OMAP3+: SmartReflex: use __devexit_p annotation Jean Pihet
2012-02-08 17:43 ` [PATCH 06/14] ARM: OMAP3+: SmartReflex: Fix status masking in ERRCONFIG register Jean Pihet
2012-02-08 17:43 ` [PATCH 07/14] ARM: OMAP3+: SmartReflex: clear ERRCONFIG_VPBOUNDINTST only on a need Jean Pihet
2012-02-08 17:43 ` [PATCH 08/14] ARM: OMAP3+: hwmod: add SmartReflex IRQs Jean Pihet
2012-02-28 22:47 ` Kevin Hilman
2012-02-08 17:43 ` [PATCH 09/14] ARM: OMAP3+: SmartReflex: add missing platform_set_drvdata() Jean Pihet
2012-02-08 17:43 ` [PATCH 10/14] ARM: OMAP3+: SmartReflex: move late_initcall() closer to its argument Jean Pihet
2012-02-08 17:43 ` [PATCH 11/14] ARM: OMAP3+: SmartReflex: misc cleanups Jean Pihet
2012-02-08 17:43 ` [PATCH 12/14] ARM: OMAP3+: SmartReflex: micro-optimization for sanity check Jean Pihet
2012-02-08 17:43 ` [PATCH 13/14] ARM: OMAP3+: SmartReflex: fix the use of debugfs_create_* API Jean Pihet
2012-02-08 17:43 ` [PATCH 14/14] ARM: OMAP3+: SmartReflex: fix error handling Jean Pihet
2012-02-28 22:50 ` [PATCH v4 00/14] ARM: OMAP3+: SmartReflex: bugfixes and clean-ups Kevin Hilman
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