From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: Jean Pihet <jean.pihet@newoldbits.com>
Cc: linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
balbi@ti.com, nm@ti.com, Kevin Hilman <khilman@ti.com>,
Paul Walmsley <paul@pwsan.com>, Jean Pihet <j-pihet@ti.com>
Subject: Re: [PATCH 10/21] OMAP3+: Smartreflex: clear ERRCONFIG_VPBOUNDINTST only on a need
Date: Thu, 26 Jan 2012 15:29:21 +0400 [thread overview]
Message-ID: <4F213911.1080806@ru.mvista.com> (raw)
In-Reply-To: <1327504583-13408-11-git-send-email-j-pihet@ti.com>
Hello.
On 25-01-2012 19:16, Jean Pihet wrote:
> From: Nishanth Menon<nm@ti.com>
> ERRCONFIG register's VPBOUNDINTST has an additional functional meaning
> It force clears Sr_interruptz internal signal. This can result in
> scenarios where VP-> SR protocol is violated where voltage processor's
> As interruptz is already high, VP will never clear the signal vpirqclr.
> Therefore during the next force update to reset to nominal voltage,
> VP can’t pulsed vpirqclr => PRCM HW can’t generate the tranxdone IRQ
> and the situation is not recoverable untill a cold reset is invoked.
> To prevent this situation, check if status is set before clearing the
> status as this needs to be done only on a need basis.
> Change-Id: Ic8065d7d79df143bf46877c50f5b6b19ed105a70
Please remove this line.
> Reported-by: Vincent Bour<v-bour@ti.com>
> Signed-off-by: Nishanth Menon<nm@ti.com>
> Signed-off-by: Jean Pihet<j-pihet@ti.com>
WBR, Sergei
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WARNING: multiple messages have this Message-ID (diff)
From: sshtylyov@ru.mvista.com (Sergei Shtylyov)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 10/21] OMAP3+: Smartreflex: clear ERRCONFIG_VPBOUNDINTST only on a need
Date: Thu, 26 Jan 2012 15:29:21 +0400 [thread overview]
Message-ID: <4F213911.1080806@ru.mvista.com> (raw)
In-Reply-To: <1327504583-13408-11-git-send-email-j-pihet@ti.com>
Hello.
On 25-01-2012 19:16, Jean Pihet wrote:
> From: Nishanth Menon<nm@ti.com>
> ERRCONFIG register's VPBOUNDINTST has an additional functional meaning
> It force clears Sr_interruptz internal signal. This can result in
> scenarios where VP-> SR protocol is violated where voltage processor's
> As interruptz is already high, VP will never clear the signal vpirqclr.
> Therefore during the next force update to reset to nominal voltage,
> VP can?t pulsed vpirqclr => PRCM HW can?t generate the tranxdone IRQ
> and the situation is not recoverable untill a cold reset is invoked.
> To prevent this situation, check if status is set before clearing the
> status as this needs to be done only on a need basis.
> Change-Id: Ic8065d7d79df143bf46877c50f5b6b19ed105a70
Please remove this line.
> Reported-by: Vincent Bour<v-bour@ti.com>
> Signed-off-by: Nishanth Menon<nm@ti.com>
> Signed-off-by: Jean Pihet<j-pihet@ti.com>
WBR, Sergei
next prev parent reply other threads:[~2012-01-26 11:30 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-25 15:16 [PATCH 00/21] OMAP3+: SR: bugfixes Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-25 15:16 ` [PATCH 01/21] OMAP3+: SR Layer Cleanup [V4] Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-25 15:16 ` [PATCH 02/21] arch/arm/mach-omap2/smartreflex.c: add missing error-handling code Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-25 15:16 ` [PATCH 03/21] OMAP3+: PM: SR: add suspend/resume handlers Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-25 15:16 ` [PATCH 04/21] ARM: omap2+: smartreflex: move smartreflex suspend to suspend_noirq Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-25 18:29 ` Sergei Shtylyov
2012-01-25 18:29 ` Sergei Shtylyov
2012-01-25 15:16 ` [PATCH 05/21] Revert "OMAP3+: PM: SR: add suspend/resume handlers" Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-25 17:53 ` Cousson, Benoit
2012-01-25 17:53 ` Cousson, Benoit
2012-01-25 18:13 ` Jean Pihet
2012-01-25 18:13 ` Jean Pihet
2012-01-25 18:25 ` Cousson, Benoit
2012-01-25 18:25 ` Cousson, Benoit
2012-01-25 18:49 ` Kevin Hilman
2012-01-25 18:49 ` Kevin Hilman
2012-01-25 21:29 ` Menon, Nishanth
2012-01-25 21:29 ` Menon, Nishanth
2012-01-26 7:31 ` Jean Pihet
2012-01-26 7:31 ` Jean Pihet
2012-01-25 15:16 ` [PATCH 06/21] OMAP3+: Smartreflex: fix err interrupt disable sequence Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-25 15:16 ` [PATCH 07/21] OMAP3+: PM: SR/Class3: disable errorgen before disable VP Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-26 11:26 ` Sergei Shtylyov
2012-01-26 11:26 ` Sergei Shtylyov
2012-01-31 10:06 ` Jean Pihet
2012-01-31 10:06 ` Jean Pihet
2012-01-31 11:37 ` Sergei Shtylyov
2012-01-31 11:37 ` Sergei Shtylyov
2012-01-31 13:39 ` Jean Pihet
2012-01-31 13:39 ` Jean Pihet
2012-01-25 15:16 ` [PATCH 08/21] OMAP3+: Smartreflex: Add a shutdown hook Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-26 11:21 ` Sergei Shtylyov
2012-01-26 11:21 ` Sergei Shtylyov
2012-01-25 15:16 ` [PATCH 09/21] OMAP3+: Smartreflex: Fix status masking in ERRCONFIG register Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-26 11:28 ` Sergei Shtylyov
2012-01-26 11:28 ` Sergei Shtylyov
2012-01-25 15:16 ` [PATCH 10/21] OMAP3+: Smartreflex: clear ERRCONFIG_VPBOUNDINTST only on a need Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-26 11:29 ` Sergei Shtylyov [this message]
2012-01-26 11:29 ` Sergei Shtylyov
2012-01-25 15:16 ` [PATCH 11/21] OMAP3: hwmod: add SmartReflex IRQs Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-26 11:30 ` Sergei Shtylyov
2012-01-26 11:30 ` Sergei Shtylyov
2012-01-25 15:16 ` [PATCH 12/21] OMAP3+: SR: introduce class init,deinit and priv data Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-26 11:31 ` Sergei Shtylyov
2012-01-26 11:31 ` Sergei Shtylyov
2012-01-25 15:16 ` [PATCH 13/21] OMAP3+: SR: introduce notifiers flags Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-25 15:16 ` [PATCH 14/21] OMAP3+: SR: introduce notifier_control Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-25 15:16 ` [PATCH 15/21] OMAP3+: SR: disable spamming interrupts Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-25 15:16 ` [PATCH 16/21] OMAP3+: SR: introduce class private data per voltage domain Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-25 15:16 ` [PATCH 17/21] OMAP3430: SR: class3: restrict CPU to run on Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-26 11:33 ` Sergei Shtylyov
2012-01-26 11:33 ` Sergei Shtylyov
2012-01-26 12:22 ` Jean Pihet
2012-01-26 12:22 ` Jean Pihet
2012-01-25 15:16 ` [PATCH 18/21] arm: omap: smartreflex: add missing platform_set_drvdata() Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-25 15:16 ` [PATCH 19/21] arm: omap: smartreflex: move late_initcall() closer to its argument Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-25 15:16 ` [PATCH 20/21] arm: omap: smartreflex: clean ups all over Jean Pihet
2012-01-25 15:16 ` Jean Pihet
2012-01-25 15:16 ` [PATCH 21/21] arm: omap: smartreflex: micro-optimization for sanity check Jean Pihet
2012-01-25 15:16 ` Jean Pihet
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