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From: shawn.guo@freescale.com (Shawn Guo)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 2/2] ARM: smp_scu: enable SCU standby support
Date: Thu, 31 Jul 2014 09:10:11 +0800	[thread overview]
Message-ID: <20140731011010.GA2171@dragon> (raw)
In-Reply-To: <20140729124410.GI24750@dragon>

On Tue, Jul 29, 2014 at 08:44:11PM +0800, Shawn Guo wrote:
> On Fri, Jul 25, 2014 at 04:09:50PM +0800, Shawn Guo wrote:
> > With SCU standby enabled, SCU CLK will be turned off when all processors
> > are in WFI mode.  And the clock will be turned on when any processor
> > leaves WFI mode.
> > 
> > This behavior should be preferable in terms of power efficiency of
> > system idle.  So let's set the SCU standby bit to enable the support in
> > function scu_enable().
> > 
> > Cortex-A9 earlier than r2p0 has no standby bit in SCU, so we need to
> > skip setting the bit for those.
> > 
> > Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
> 
> If there is no objection on the patch, I will put it into patch tracker
> soon.

Submitted these two patches as #8121 and #8122.

Shawn

      reply	other threads:[~2014-07-31  1:10 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-25  8:09 [PATCH v2 0/2] Enable SCU standby support at core level Shawn Guo
2014-07-25  8:09 ` [PATCH v2 1/2] ARM: smp_scu: use macro for SCU enable bit Shawn Guo
2014-07-30 15:40   ` Sören Brinkmann
2014-07-25  8:09 ` [PATCH v2 2/2] ARM: smp_scu: enable SCU standby support Shawn Guo
2014-07-29 12:44   ` Shawn Guo
2014-07-31  1:10     ` Shawn Guo [this message]

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