From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: smp_scu: Enable standby mode
Date: Wed, 30 Jul 2014 10:43:33 +0100 [thread overview]
Message-ID: <20140730094332.GC12239@arm.com> (raw)
In-Reply-To: <1406654463-15475-1-git-send-email-soren.brinkmann@xilinx.com>
On Tue, Jul 29, 2014 at 06:21:03PM +0100, Soren Brinkmann wrote:
> Enable the SCU standby mode.
> From documentation:
> When set, SCU CLK is turned off when all processors are in WFI mode,
> there is no pending request on the ACP (if implemented), and there is
> no remaining activity in the SCU.
>
> When SCU CLK is off, ARREADYS, AWREADYS and WREADYS on the ACP are forced
> LOW. The clock is turned on when any processor leaves WFI mode, or if
> there is a new request on the ACP.
>
> Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
> ---
> Hi,
>
> I am working on some PM related patches for Zynq. One of them is
> enabling the SCU standby mode. I was wondering whether this is probably
> something that I should not do in platform specific code, but rather in
> the common code for everybody?
Take a look at Shawn's patches for this:
http://lists.infradead.org/pipermail/linux-arm-kernel/2014-July/275326.html
Will
next prev parent reply other threads:[~2014-07-30 9:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-29 17:21 [PATCH] ARM: smp_scu: Enable standby mode Soren Brinkmann
2014-07-30 9:43 ` Will Deacon [this message]
2014-07-30 15:29 ` Sören Brinkmann
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