Re: [lm-sensors] [linux-pm] [PATCH 2/4] hwmon: exynos4: Move thermalsensor driver to driver/mfd directory

[Guenter Roeck]

On Sat, Mar 03, 2012 at 11:44:10AM -0500, Mark Brown wrote:
> On Sat, Mar 03, 2012 at 04:36:05PM +0530, Amit Daniel Kachhap wrote:
> > This movement is needed because the hwmon entries and corresponding
> > sysfs interface is a duplicate of utilities already provided by
> > driver/thermal/thermal_sys.c. The goal is to place it in mfd folder
> > and add necessary calls to get the temperature information.
> 
> > --- a/Documentation/hwmon/exynos4_tmu
> > +++ /dev/null
> 
> Moving this seems to be a failure, the device is exposing a hwmon
> interface even if you've moved the code to mfd (though it doesn't
> actually look like a multi-function device at all as far as I can see -
> usually a MFD would have a bunch of unrelated functionality while this
> has one function used by two subsystems).
> 
> If anything it looks like the ADC driver ought to be moved into IIO with
> either generic or Exynos specific function drivers layered on top of it
> in hwmon and thermal making use of the values that are read.
> 
I would agree. Or maybe move it all to thermal, since thermal devices register
the hwmon subsystem.

Guenter
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