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Date: Tue, 16 Apr 2024 14:18:23 +0000
From: "Paller, Kim Seer" <KimSeer.Paller@...log.com>
To: Jonathan Cameron <jic23@...nel.org>, David Lechner <dlechner@...libre.com>
CC: "linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Lars-Peter
 Clausen <lars@...afoo.de>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Liam
 Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
        "Hennerich,
 Michael" <Michael.Hennerich@...log.com>
Subject: RE: [PATCH 3/4] iio: ABI: add ABI file for the LTC2672 DAC

> -----Original Message-----
> From: Jonathan Cameron <jic23@...nel.org>
> Sent: Saturday, April 13, 2024 11:27 PM
> To: Paller, Kim Seer <KimSeer.Paller@...log.com>
> Cc: linux-iio@...r.kernel.org; devicetree@...r.kernel.org; linux-
> kernel@...r.kernel.org; Lars-Peter Clausen <lars@...afoo.de>; Rob Herring
> <robh@...nel.org>; Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>;
> Conor Dooley <conor+dt@...nel.org>; Liam Girdwood
> <lgirdwood@...il.com>; Mark Brown <broonie@...nel.org>; David Lechner
> <dlechner@...libre.com>; Hennerich, Michael
> <Michael.Hennerich@...log.com>
> 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@...log.com> 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@...log.com>
> > Signed-off-by: Michael Hennerich <michael.hennerich@...log.com>
> > Signed-off-by: Kim Seer Paller <kimseer.paller@...log.com>
> > ---
> >  .../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?



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