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Date:   Sat, 3 Oct 2020 12:48:21 +0200
From:   Sebastian Reichel <sebastian.reichel@collabora.com>
To:     Andreas Kemnade <andreas@kemnade.info>
Cc:     linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
        kernel@collabora.com
Subject: Re: [PATCHv1] power: supply: document current direction
Message-ID: <20201003104821.oduzfpxbw23b4fcz@earth.universe>
References: <20200827140248.37749-1-sebastian.reichel@collabora.com>
 <20201002182303.51db1289@aktux>
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Hi,

On Fri, Oct 02, 2020 at 06:23:03PM +0200, Andreas Kemnade wrote:
> On Thu, 27 Aug 2020 16:02:48 +0200
> Sebastian Reichel <sebastian.reichel@collabora.com> wrote:
>=20
> > Currently the sign for CURRENT_NOW and CURRENT_AVG is a bit
> > of a mess. There are basically 3 different ways battery fuel
> > gauges report the current:
> >=20
> > 1. uses negative values for discharging and positive values
> >    for charging
> > 2. uses positive values for discharging and negative values
> >    for discharging (opposit of 1)
> > 3. only uses positive values
> >=20
> > As a result userspace currently cannot use the sign at all in
> > a generic way. Let's solve the issue by documenting a canonical
> > way for reporting the data and ensure new drivers follow this
> > way. Then existing drivers can be fixed on a case-by-case basis.
> >=20
> > The 'negative value =3D battery discharging' has been choosen,
> > since there are only very few drivers doing it the other way
> > around.
> >=20
> > Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
> > ---
>=20
> would be nice if this comes in, so that is it clearly specified.

Ack, I'm a bit late picking up patches this merge window due to a
vacation. This has been queued now.

-- Sebastian

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