From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Thara Gopinath <thara@ti.com>,
linux-omap@vger.kernel.org, paul@pwsan.com, vishwanath.bs@ti.com,
sawant@ti.com, b-cousson@ti.com
Subject: Re: [PATCH 01/13] OMAP: Introduce a user list for each voltage domain instance in the voltage driver.
Date: Thu, 2 Sep 2010 09:43:27 +0200 [thread overview]
Message-ID: <20100902094327.31a96174@surf> (raw)
In-Reply-To: <87eiddgjr7.fsf@deeprootsystems.com>
Hello,
On Wed, 01 Sep 2010 15:51:40 -0700
Kevin Hilman <khilman@deeprootsystems.com> wrote:
> Looking closer at this, keeping track of a list of devices and
> constraints is what the regulator framework does as well.
>
> Before we get too far down this path, we need to start working with
> Thomas Petazzoni to better understand how we can use the regulator
> framework for much of the management levels of the voltage layer.
Yes, as discussed on IRC with Kevin, I think that some of this voltage
layer mechanisms would benefit from using the existing kernel regulator
framework.
The regulator framework already keeps tracks of consumers (in your
patch set called "vdd users"), and for each consumer, keeps track of
the requested voltage. The maximum requested voltage is then applied to
the regulator. It seems to fit quite well some of the mechanisms you're
introducing in this patch set.
Regards,
Thomas
--
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
next prev parent reply other threads:[~2010-09-02 7:51 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-18 11:19 [PATCH 00/13] OMAP: Basic DVFS framework Thara Gopinath
2010-08-18 11:20 ` [PATCH 01/13] OMAP: Introduce a user list for each voltage domain instance in the voltage driver Thara Gopinath
2010-08-27 23:53 ` Kevin Hilman
2010-08-30 22:56 ` Kevin Hilman
2010-09-16 9:59 ` Gopinath, Thara
2010-09-16 15:20 ` Kevin Hilman
2010-09-17 14:33 ` Gopinath, Thara
2010-09-01 22:51 ` Kevin Hilman
2010-09-02 7:43 ` Thomas Petazzoni [this message]
2010-09-02 8:17 ` Nishanth Menon
2010-09-02 10:00 ` Felipe Balbi
2010-09-02 10:17 ` Nishanth Menon
2010-09-02 10:28 ` Felipe Balbi
2010-09-02 10:40 ` Nishanth Menon
2010-09-02 11:16 ` Felipe Balbi
2010-09-02 17:47 ` Kevin Hilman
2010-09-02 18:46 ` Nishanth Menon
2010-09-02 18:56 ` Kevin Hilman
2010-09-03 7:09 ` Gopinath, Thara
2010-09-03 16:41 ` Kevin Hilman
2010-09-03 17:30 ` Mark Brown
2010-09-03 18:00 ` Kevin Hilman
2010-09-03 18:20 ` Mark Brown
2010-09-06 19:59 ` Eduardo Valentin
2010-09-06 20:21 ` Liam Girdwood
2010-09-06 21:21 ` Mark Brown
2010-11-23 9:26 ` Thomas Petazzoni
2010-11-24 9:45 ` Thomas Petazzoni
2010-11-24 9:51 ` Mark Brown
2010-09-03 18:27 ` Kevin Hilman
2010-09-06 11:01 ` Mark Brown
2010-08-18 11:20 ` [PATCH 02/13] OMAP: Introduce API in the OPP layer to find the opp entry corresponding to a voltage Thara Gopinath
2010-08-18 11:20 ` [PATCH 03/13] OMAP: Introduce voltage domain information in the hwmod structures Thara Gopinath
2010-08-18 11:20 ` [PATCH 04/13] OMAP: Introduce API to return a device list associated with a voltage domain Thara Gopinath
2010-08-28 0:52 ` Kevin Hilman
2010-08-28 0:54 ` Kevin Hilman
2010-09-16 10:04 ` Gopinath, Thara
2010-09-16 15:22 ` Kevin Hilman
2010-09-17 14:48 ` Gopinath, Thara
2010-09-20 18:00 ` Kevin Hilman
2010-09-02 0:33 ` Kevin Hilman
2010-09-16 10:10 ` Gopinath, Thara
2010-09-16 15:23 ` Kevin Hilman
2010-08-18 11:20 ` [PATCH 05/13] OMAP: Introduce device specific set rate and get rate in device opp structures Thara Gopinath
2010-09-02 23:41 ` Kevin Hilman
2010-09-16 10:21 ` Gopinath, Thara
2010-09-16 15:28 ` Kevin Hilman
2010-09-17 14:55 ` Gopinath, Thara
2010-09-18 10:13 ` Cousson, Benoit
2010-09-20 17:35 ` Kevin Hilman
2010-09-29 11:16 ` Gopinath, Thara
2010-09-29 20:25 ` Cousson, Benoit
2010-08-18 11:20 ` [PATCH 06/13] OMAP: Voltage layer changes to support DVFS Thara Gopinath
2010-08-18 11:20 ` [PATCH 07/13] OMAP: Introduce dependent voltage domain support Thara Gopinath
2010-08-18 11:20 ` [PATCH 08/13] OMAP: Introduce device set_rate and get_rate Thara Gopinath
2010-08-18 11:20 ` [PATCH 09/13] OMAP: Disable smartreflex across DVFS Thara Gopinath
2010-08-18 11:20 ` [PATCH 10/13] OMAP3: Introduce custom set rate and get rate APIs for scalable devices Thara Gopinath
2010-08-31 0:06 ` Kevin Hilman
2010-08-18 11:20 ` [PATCH 11/13] OMAP3: Update cpufreq driver to use the new set_rate API Thara Gopinath
2010-08-18 11:20 ` [PATCH 12/13] OMAP3: Introduce voltage domain info in the hwmod structures Thara Gopinath
2010-08-18 11:20 ` [PATCH 13/13] OMAP3: Add voltage dependency table for VDD1 Thara Gopinath
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