From: mark gross <mgross@linux.intel.com>
To: David Brown <davidb@quicinc.com>
Cc: Daniel Walker <dwalker@codeaurora.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Chidambaram, Praveen" <pchidamb@quicinc.com>
Subject: Re: [PATCH] pm_qos: Add QoS param, minimum system bus frequency
Date: Wed, 6 Jan 2010 10:49:26 -0800 [thread overview]
Message-ID: <20100106184926.GB21316@linux.intel.com> (raw)
In-Reply-To: <20100104231852.GA29950@huya.qualcomm.com>
On Mon, Jan 04, 2010 at 03:18:52PM -0800, David Brown wrote:
> On Mon, Jan 04, 2010 at 01:38:52PM -0800, mark gross wrote:
>
> > Also, on your platform you have a throttling driver controlling the
> > frequency of some bus, that will use this value as a constraint on how
> > far it will throttle. no? I would be interested in seeing this driver
> > sometime. (I just want to make sure no one bastardizes pm_qos into an
> > operating point thing. I'm not sure I can justify why but I want to
> > avoid that.)
>
> We're part of a system with several other devices. Our driver
> just passes the frequency on as our voted minimum.
>
> Look for PM_QOS_SYSTEM_BUS_FREQ in the file:
>
> https://www.codeaurora.org/gitweb/quic/la/?p=kernel/msm.git;a=blob;f=arch/arm/mach-msm/clock.c;h=3a22b5abb8e8acf876367dc6c013fe507af9c0ac;hb=287d333b03df8faafd3a480abc8e121110870839
>
> http://tinyurl.com/ye7eg33
hurray for tinyurls!
It looks pretty ok to me on my initial inspection.
--mgross
> David
next prev parent reply other threads:[~2010-01-06 18:49 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-01 1:20 [PATCH] pm_qos: Add QoS param, minimum system bus frequency Daniel Walker
2010-01-01 1:22 ` Daniel Walker
2010-01-04 21:38 ` mark gross
2010-01-04 22:00 ` Daniel Walker
2010-01-06 18:39 ` mark gross
2010-01-04 23:18 ` David Brown
2010-01-06 18:49 ` mark gross [this message]
2010-01-04 23:22 ` Chidambaram, Praveen
2010-01-06 18:56 ` mark gross
2010-01-07 16:34 ` Kevin Hilman
2010-01-07 20:52 ` mark gross
2010-01-07 22:28 ` Kevin Hilman
2010-01-08 18:59 ` Daniel Walker
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