linux-kernel - Re: [RFC PATCH 4/7] dt-bindings: pwm: add description of PWM polarity

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Date:   Wed, 18 Mar 2020 14:29:42 +0200
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Oleksandr Suvorov <oleksandr.suvorov@...adex.com>
Cc:     devicetree@...r.kernel.org, linux-pwm@...r.kernel.org,
        Paul Barker <pbarker@...sulko.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>,
        Marcel Ziswiler <marcel.ziswiler@...adex.com>,
        Igor Opaniuk <igor.opaniuk@...adex.com>,
        Philippe Schenker <philippe.schenker@...adex.com>,
        Rob Herring <robh+dt@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 4/7] dt-bindings: pwm: add description of PWM polarity

Hi Oleksandr,

On Wed, Mar 18, 2020 at 01:37:00PM +0200, Oleksandr Suvorov wrote:
> On Wed, Mar 18, 2020 at 1:02 AM Laurent Pinchart wrote:
> > On Tue, Mar 17, 2020 at 02:32:28PM +0200, Oleksandr Suvorov wrote:
> > > Move the description of the PWM signal polarity from
> > > <linux/pwm.h>, prepare for removing the polarity
> > > definition from <linux/pwm.h>.
> > >
> > > Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@...adex.com>
> > > ---
> > >
> > >  include/dt-bindings/pwm/pwm.h | 9 +++++++++
> > >  1 file changed, 9 insertions(+)
> > >
> > > diff --git a/include/dt-bindings/pwm/pwm.h b/include/dt-bindings/pwm/pwm.h
> > > index 6b58caa6385e..c07da2088a61 100644
> > > --- a/include/dt-bindings/pwm/pwm.h
> > > +++ b/include/dt-bindings/pwm/pwm.h
> > > @@ -10,7 +10,16 @@
> > >  #ifndef _DT_BINDINGS_PWM_PWM_H
> > >  #define _DT_BINDINGS_PWM_PWM_H
> > >
> > > +/**
> > > + * a high signal for the duration of the duty-cycle, followed by a low signal
> > > + * for the remainder of the pulse period.
> > > + */
> >
> > Last time I checked, kernedoc didn't support documenting macros (enums
> > are supported).
> 
> That's why I dropped the kerneldoc tags leaving the descriptions only.

But you forgot to replace /** with /* :-) Sorry for not being clear
about what I meant.

> > >  #define PWM_POLARITY_NORMAL                  0
> > > +
> > > +/**
> > > + * a low signal for the duration of the duty-cycle, followed by a high signal
> > > + * for the remainder of the pulse period.
> > > + */
> > >  #define PWM_POLARITY_INVERTED                        (1 << 0)
> > >
> > >  #endif

-- 
Regards,

Laurent Pinchart