linux-kernel - Re: [PATCH v3 09/11] power: supply: bq24190_charger: Get input_current

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Message-ID: <20170830163253.ay6qjpld5i2bwmgs@earth>
Date:   Wed, 30 Aug 2017 18:32:54 +0200
From:   Sebastian Reichel <sebastian.reichel@...labora.co.uk>
To:     Tony Lindgren <tony@...mide.com>
Cc:     Hans de Goede <hdegoede@...hat.com>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Wolfram Sang <wsa@...-dreams.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-i2c@...r.kernel.org, Liam Breck <liam@...workimprov.net>,
        linux-pm@...r.kernel.org, devel@...verdev.osuosl.org
Subject: Re: [PATCH v3 09/11] power: supply: bq24190_charger: Get
 input_current_limit from our supplier

Hi,

On Wed, Aug 30, 2017 at 07:47:46AM -0700, Tony Lindgren wrote:
> * Hans de Goede <hdegoede@...hat.com> [170830 02:49]:
> > On some devices the USB Type-C port power (USB PD 2.0) negotiation is
> > done by a separate port-controller IC, while the current limit is
> > controlled through another (charger) IC.
> > 
> > It has been decided to model this by modelling the external Type-C
> > power brick (adapter/charger) as a power-supply class device which
> > supplies the charger-IC, with its voltage-now and current-max representing
> > the negotiated voltage and max current draw.
> > 
> > This commit adds support for this to the bq24190_charger driver by adding
> > an external_power_changed callback and calling
> > power_supply_set_input_current_limit_from_supplier from this callback.
> > This callback will only get called if the bq24190 has a parent-supply.
> > 
> > Note this replaces the functionality to get the current-limit from an
> > extcon device, which will be removed in a follow-up commit.
> > 
> > Signed-off-by: Hans de Goede <hdegoede@...hat.com>
> 
> Acked-by: Tony Lindgren <tony@...mide.com>

Thanks, queued.

-- Sebastian

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