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Date: Wed, 10 Sep 2014 17:59:41 +0200
From: Alban Bedel <alban.bedel@avionic-design.de>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Thierry Reding <thierry.reding@gmail.com>, linux-kernel@vger.kernel.org,
        devicetree@vger.kernel.org, linux-pwm@vger.kernel.org,
        Grant Likely <grant.likely@linaro.org>,
        Kumar Gala <galak@codeaurora.org>,
        Ian Campbell <ijc+devicetree@hellion.org.uk>,
        Mark Rutland <mark.rutland@arm.com>, Pawel Moll <pawel.moll@arm.com>,
        Rob Herring <robh+dt@kernel.org>, Roland Stigge <stigge@antcom.de>
Subject: Re: [PATCH V4] pwm: lpc32xx - Add a driver for the motor PWM
Message-ID: <20140910175941.5c44837f@avionic-0020>
In-Reply-To: <12709842.iga6ki5KTS@wuerfel>
References: <1410363822-22151-1-git-send-email-alban.bedel@avionic-design.de>
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On Wed, 10 Sep 2014 17:51:36 +0200
Arnd Bergmann <arnd@arndb.de> 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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