From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alban Bedel <alban.bedel-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>
Subject: Re: [PATCH V4] pwm: lpc32xx - Add a driver for the motor PWM
Date: Wed, 10 Sep 2014 17:59:41 +0200
Message-ID: <20140910175941.5c44837f@avionic-0020>
References: <1410363822-22151-1-git-send-email-alban.bedel@avionic-design.de>
	<12709842.iga6ki5KTS@wuerfel>
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To: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Cc: Thierry Reding <thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-pwm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Grant Likely <grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>, Kumar Gala <galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>, Ian Campbell <ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org>, Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>, Pawel Moll <pawel.moll-5wv7dgnIgG8@public.gmane.org>, Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, Roland Stigge <stigge-uj/7R2tJ6VmzQB+pC5nmwQ@public.gmane.org>
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On Wed, 10 Sep 2014 17:51:36 +0200
Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org> wrote:

> On Wednesday 10 September 2014 17:43:42 Alban Bedel wrote:
> > +- #pwm-cells: should be 3. See pwm.txt in this directory for a descrip=
tion of
> > +  the cells format. The only third cell flag supported by this binding=
 is
> > +  PWM_POLARITY_INVERTED.
>=20
> If you don't have multiple pwm outputs or programmable period, I would sa=
y it
> should use #pwm-cells=3D<1> and only pass the polarity.

There is 3 channel, so 3 PWM from the API POV, and the period is
independently programmable for each one.

Alban

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