From: s.hauer@pengutronix.de (Sascha Hauer)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 2/2] ARM: mx3: Let mx31 and mx35 enter in LPM mode in WFI
Date: Wed, 29 Feb 2012 09:42:21 +0100 [thread overview]
Message-ID: <20120229084221.GV3852@pengutronix.de> (raw)
In-Reply-To: <CAOMZO5C=iMp-Wqf9tDKhTV7bKBezxkp2RbHKpjRCL0v1tx8bdQ@mail.gmail.com>
On Tue, Feb 28, 2012 at 09:47:45AM -0300, Fabio Estevam wrote:
> Hi Sascha,
>
> On 2/2/12, Fabio Estevam <festevam@gmail.com> wrote:
> > The LPM field of register CCMR is used to select the mode that the processor
> > will run
> > when it goes to WFI.
> >
> > When mx31 enters in WFI mode the LPM field is at its reset value of 0,
> > which configures the mx31 to enter in "wait mode".
> >
> > On mx35, the LPM field on mx35 is also at 0 after reset, which corresponds
> > to "run mode" instead of "wait mode".
> >
> > Instead of relying on the reset value of LPM to set the low power mode for
> > WFI, configure mx31 and mx35 to run in "wait mode"
> >
> > Reported-by: Benoit Thebaudeau <benoit.thebaudeau@advansee.com>
> > Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
>
> I saw that you applied 1/2, but not 2/2.
>
> Is there anything I should rework in this patch?
Nope, I just lost it. I'll queue it.
Sascha
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prev parent reply other threads:[~2012-02-29 8:42 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-02 22:02 [PATCH v2 1/2] ARM: mx3: Let mx31 and mx35 share the same CCM header file Fabio Estevam
2012-02-02 22:02 ` [PATCH v2 2/2] ARM: mx3: Let mx31 and mx35 enter in LPM mode in WFI Fabio Estevam
2012-02-03 0:52 ` Richard Zhao
2012-02-03 0:59 ` Fabio Estevam
2012-02-28 12:47 ` Fabio Estevam
2012-02-29 8:42 ` Sascha Hauer [this message]
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