Re: [PATCH 1/2] power_supply: Add charge control struct in powersupply class

From: Anton Vorontsov
Date: Mon Jan 07 2013 - 00:38:39 EST


On Mon, Jan 07, 2013 at 05:23:36AM +0000, Tc, Jenny wrote:
> >
> > > > +struct power_supply_charger_control {
> > > > + const char *name;
> > > > + /* get charging status */
> > > > + int (*is_charging_enabled)(void);
> > > > + int (*is_charger_enabled)(void);
> > > > +
> > > > + /* set charging parameters */
> > > > + int (*set_in_current_limit)(int uA);
> > > > + int (*set_charge_current)(int uA);
> > > > + int (*set_charge_voltage)(int uV);
> > > > +
> > > > + /* control battery charging */
> > > > + int (*enable_charging)(void);
> > > > + int (*disable_charging)(void);
> > > > +
> > > > + /* control VSYS or system supply */
> > > > + int (*turnon_charger)(void);
> > > > + int (*turnoff_charger)(void);
> > > > +};
> > > > +
> > >
> > > I'm all for this patch, but why do you need to place it into
> > > power_supply.h and power_supply_core.c? :) I see nothing generic here,
> > > it's pure charger-manager stuff. So, place everything into charger-
> > manager.{c,h}.
> >
> > Hi Anton,
> >
> > The main reason for keeping this stuff in power_supply.h and
> > power_supply_core.c is to make these interfaces uniform Across multiple
> > charger frameworks and to avoid each charger framework define it's own
> > interfaces. If there is need for new callback They can add to the existing struct
> > defined above and it will available to all the frameworks. Also the work
> > required to support a new Framework will be reduced if the driver already
> > support any one of the existing frameworks.
> >
>
> Rama,
>
> The similar functionalities are exposed by patch https://lkml.org/lkml/2012/10/18/219.
> As per Anton's review comments on this patch, I'll be moving the macros to power_supply.h.
> Wouldn't that be enough ?

Btw, how do these two sets relate to each other? Both seem to control
chargers in some way... But yours approach uses properties, which I like
more.

I guess you should coordinate on this?

Thanks,
Anton
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