From: Alban Bedel <alban.bedel-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>
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>
Subject: Re: [PATCH V4] pwm: lpc32xx - Add a driver for the motor PWM
Date: Wed, 10 Sep 2014 17:59:41 +0200 [thread overview]
Message-ID: <20140910175941.5c44837f@avionic-0020> (raw)
In-Reply-To: <12709842.iga6ki5KTS@wuerfel>
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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 description of
> > + the cells format. The only third cell flag supported by this binding is
> > + PWM_POLARITY_INVERTED.
>
> If you don't have multiple pwm outputs or programmable period, I would say it
> should use #pwm-cells=<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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next prev parent reply other threads:[~2014-09-10 15:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-10 15:43 [PATCH V4] pwm: lpc32xx - Add a driver for the motor PWM Alban Bedel
2014-09-10 15:51 ` Arnd Bergmann
2014-09-10 15:59 ` Alban Bedel [this message]
2014-09-10 16:28 ` Arnd Bergmann
2014-09-11 8:36 ` Alban Bedel
2014-09-11 9:39 ` Arnd Bergmann
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