linux-kernel - Re: [PATCH v2 2/6] ARM: tegra: nyan: Use external control for bq24735 charger

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Message-ID: <1485342115.1224.0.camel@paulk.fr>
Date:   Wed, 25 Jan 2017 12:01:55 +0100
From:   Paul Kocialkowski <contact@...lk.fr>
To:     Thierry Reding <thierry.reding@...il.com>
Cc:     linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        Jon Hunter <jonathanh@...dia.com>,
        Stephen Warren <swarren@...dotorg.org>,
        Alexandre Courbot <gnurou@...il.com>,
        Mikko Perttunen <cyndis@...si.fi>,
        Peter Rosin <peda@...ntia.se>
Subject: Re: [PATCH v2 2/6] ARM: tegra: nyan: Use external control for
 bq24735 charger

Le mercredi 25 janvier 2017 à 11:59 +0100, Thierry Reding a écrit :
> On Sun, Jan 22, 2017 at 04:47:49PM +0100, Paul Kocialkowski wrote:
> > Nyan boards come with an embedded controller that controls when to
> > enable and disable the charge. Thus, it should not be left up to the
> > kernel to handle that.
> > 
> > Using the ti,external-control property allows specifying this use-case.
> > 
> > Signed-off-by: Paul Kocialkowski <contact@...lk.fr>
> > ---
> >  arch/arm/boot/dts/tegra124-nyan.dtsi | 1 +
> >  1 file changed, 1 insertion(+)
> 
> Is the ti,ac-detect-gpios property still useful in that case? I guess it
> would still allow to monitor whether or not a charger is connected, even
> if the EC determines that it shouldn't charge.

Yes, this is mostly what the bq24735 is used for in nyan devices: reporting
connection and disconnection events.

> Anyway, I've applied this.

Thanks!

-- 
Paul Kocialkowski, developer of free digital technology at the lower levels

Website: https://www.paulk.fr/
Coding blog: https://code.paulk.fr/
Git repositories: https://git.paulk.fr/ https://git.code.paulk.fr/
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