Re: [PATCH 3/4] iio: ABI: add ABI file for the LTC2672 DAC

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On Tue, 16 Apr 2024 14:18:23 +0000
"Paller, Kim Seer" <KimSeer.Paller@xxxxxxxxxx> wrote:

> > -----Original Message-----
> > From: Jonathan Cameron <jic23@xxxxxxxxxx>
> > Sent: Saturday, April 13, 2024 11:27 PM
> > To: Paller, Kim Seer <KimSeer.Paller@xxxxxxxxxx>
> > Cc: linux-iio@xxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx; linux-
> > kernel@xxxxxxxxxxxxxxx; Lars-Peter Clausen <lars@xxxxxxxxxx>; Rob Herring
> > <robh@xxxxxxxxxx>; Krzysztof Kozlowski <krzysztof.kozlowski+dt@xxxxxxxxxx>;
> > Conor Dooley <conor+dt@xxxxxxxxxx>; Liam Girdwood
> > <lgirdwood@xxxxxxxxx>; Mark Brown <broonie@xxxxxxxxxx>; David Lechner
> > <dlechner@xxxxxxxxxxxx>; Hennerich, Michael
> > <Michael.Hennerich@xxxxxxxxxx>
> > Subject: Re: [PATCH 3/4] iio: ABI: add ABI file for the LTC2672 DAC
> > 
> > [External]
> > 
> > On Fri, 12 Apr 2024 11:21:01 +0800
> > Kim Seer Paller <kimseer.paller@xxxxxxxxxx> wrote:
> >   
> > > Define the sysfs interface for toggle capable channels.
> > >
> > > Toggle enabled channels will have:
> > >
> > >  * out_currentY_toggle_en
> > >  * out_currentY_raw0
> > >  * out_currentY_raw1
> > >  * out_currentY_symbol
> > >
> > > The common interface present in all channels is:
> > >
> > >  * out_currentY_raw (not present in toggle enabled channels)
> > >  * out_currentY_raw_available
> > >  * out_currentY_powerdown
> > >  * out_currentY_scale
> > >  * out_currentY_offset
> > >
> > > Co-developed-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
> > > Signed-off-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
> > > Signed-off-by: Kim Seer Paller <kimseer.paller@xxxxxxxxxx>
> > > ---
> > >  .../ABI/testing/sysfs-bus-iio-dac-ltc2672     | 30 +++++++++++++++++++  
> > 
> > You can only have per device ABI defined if that is the only user
> > of the ABI.  That may actually be true here but given I've asked you to
> > generalize
> > the voltage equivalent, I think we've shown this is general enough that the
> > current
> > version should also be raised to sysfs-bus-iio-dac  
> 
> I'm still getting familiar with ABI documentation. If I understand correctly,
> generalizing the documentation to cover both parts would also mean we remove
> the overlapping sections from the ltc2688 ABI. Is that the correct approach?
> 
> 

Yes.  To test this build the html docs. IIRC that will complain about duplicate
ABI definitions.  I'm sure there is a way to test just ABI docs build but
I've never really looked into it.

Jonathan




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