From: thierry.reding@gmail.com (Thierry Reding)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCHv2 0/3] Add G762/G763 PWM fan controller
Date: Tue, 28 May 2013 13:19:23 +0200 [thread overview]
Message-ID: <20130528111921.GD11547@mithrandir> (raw)
In-Reply-To: <87li6z2yxj.fsf@natisbad.org>
On Tue, May 28, 2013 at 12:15:04PM +0200, Arnaud Ebalard wrote:
> Hi Arnd,
>
> Arnd Bergmann <arnd@arndb.de> writes:
>
> > On Tuesday 28 May 2013 00:02:29 Arnaud Ebalard wrote:
> >>
> >> This series adds support for GMT G762/G763. This work is based on a
> >> basic version for 2.6.31 kernel developed Olivier Mouchet for LaCie
> >> NAS. Updates have been performed to run on recent kernels. Support has
> >> been completed and additional features added: ability to configure
> >> various characteristics from .dts file, better initialization, alarms
> >> and error reporting support, gear mode, polarity, fan pulse per
> >> revolution, fan startup voltage control.
> >
> > I wonder if this could be split into two separate drivers, one for
> > the pwm subsystem, and one for a hardware-independent fan controller
> > based on the pwm interfaces.
>
> To be honest, I wouldn't even know how to start in order to do that.
> Additionally, it would be worth the effort if other drivers could be
> easily refactored using this idea. I'll let hwmon people provide some
> feedback and try and comply with their directions (based on the cpu
> cycle I can spend on this).
What Arnd proposes doesn't sounds like a very good idea. PWM-controlled
fans should be able to work just fine using a generic driver that uses
the PWM framework, similar to the PWM backlight and LED drivers.
Thierry
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next prev parent reply other threads:[~2013-05-28 11:19 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-27 22:02 [PATCHv2 0/3] Add G762/G763 PWM fan controller Arnaud Ebalard
2013-05-27 22:03 ` [PATCHv2 1/3] Add support for GMT " Arnaud Ebalard
2013-05-31 22:16 ` Simon Guinot
2013-06-01 17:26 ` Arnaud Ebalard
2013-06-02 15:45 ` Arnaud Ebalard
2013-06-02 20:35 ` Guenter Roeck
2013-06-02 21:36 ` Arnaud Ebalard
2013-06-02 21:59 ` Simon Guinot
2013-06-04 6:52 ` Arnaud Ebalard
2013-06-04 21:23 ` Simon Guinot
2013-06-11 15:15 ` Guenter Roeck
2013-06-15 16:13 ` Arnaud Ebalard
2013-06-04 6:51 ` Arnaud Ebalard
2013-06-01 14:33 ` Guenter Roeck
2013-06-02 15:39 ` Arnaud Ebalard
2013-05-27 22:03 ` [PATCHv2 2/3] Add documentation for g762 driver Arnaud Ebalard
2013-05-27 22:03 ` [PATCHv2 3/3] Add DT bindings " Arnaud Ebalard
2013-05-27 22:15 ` [PATCHv2 0/3] Add G762/G763 PWM fan controller Arnd Bergmann
2013-05-28 10:15 ` Arnaud Ebalard
2013-05-28 11:19 ` Thierry Reding [this message]
2013-05-28 12:29 ` Guenter Roeck
2013-05-28 13:47 ` Thierry Reding
2013-05-28 15:42 ` Guenter Roeck
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