Re: [PATCH v3 00/10] Add PWM framework and device tree support.

[Thierry Reding <thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>]

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* Arnd Bergmann wrote:
> On Wednesday 22 February 2012, Thierry Reding wrote:
> > This patch series adds very rudimentary device-tree support for PWM
> > devices. With all of these patches applied (plus one board-specific
> > patch that is not included), I'm able to control the backlight on the
> > device I'm working on using the sysfs interface provided by the pwm-bl
> > driver and the backlight class.
> > 
> > This series is based on Sascha Hauer's series of patches[0] to add a
> > generic PWM framework. The first patch in this series is taken from
> > Sascha's branch, while the second patch enables each PWM chip to provide
> > multiple PWM devices (the Blackfin and PXA drivers have been ported to
> > the framework for reference). When this series is ready I think it would
> > be best to merge patches 1 and 2. Currently a global namespace is still
> > provided to keep backwards-compatibility with the legacy PWM API. In
> > order to achieve this, the number of global PWM devices is limited to
> > 1024. However, patch 2 introduces per-chip indexing of PWM devices in
> > the core, so it should be easy to add an API to request a PWM device on
> > a per-chip basis and get rid of the global namespace eventually. The
> > device tree support code does not use the global namespace.
> 
> Hi Thierry,
> 
> I've just had a chance to look at your series and I think this looks
> very good overall, great work!
> 
> I probably wouldn't bother merging patches 1 and 2 as you listed
> in the TODO section, in order to keep the authorship of each
> part obvious.

Okay, no problem.

Thierry

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