linux-kernel - RE: [PATCH v2] POWER: Add gpio charger driver

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Message-ID: <E88A1D35AF5437468E5B14C7C4BA61C702D3E13FB3@HQMAIL01.nvidia.com>
Date:	Thu, 28 Oct 2010 14:17:41 -0700
From:	Rhyland Klein <rklein@...dia.com>
To:	Lars-Peter Clausen <lars@...afoo.de>,
	Anton Vorontsov <cbouatmailru@...il.com>
CC:	"broonie@...nsource.wolfsonmicro.com" 
	<broonie@...nsource.wolfsonmicro.com>,
	Andrew Chew <AChew@...dia.com>,
	"olof@...om.net" <olof@...om.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v2] POWER: Add gpio charger driver

> -----Original Message-----
> From: Lars-Peter Clausen [mailto:lars@...afoo.de]
> Sent: Thursday, October 21, 2010 10:48 AM
> To: Anton Vorontsov
> Cc: Rhyland Klein; broonie@...nsource.wolfsonmicro.com; Andrew Chew;
> olof@...om.net; linux-kernel@...r.kernel.org
> Subject: Re: [PATCH v2] POWER: Add gpio charger driver
> 
> Anton Vorontsov wrote:
> > On Thu, Oct 21, 2010 at 05:55:01PM +0200, Lars-Peter Clausen wrote:
> >> This patch adds a simple driver for chargers indicating their online
> status
> >> through a GPIO pin.
> >>
> >> Signed-off-by: Lars-Peter Clausen <lars@...afoo.de>
> >
> > Hm. I'm getting older, it seems. Now can anybody remind me why
> > pda_power.c doesn't work here? ;-)
> >
> > This driver looks like a light-weigh version of pda_power, except
> > that it can do GPIOs directly (instead of is_*_online() callbacks).
> >
> > Can we instead improve pda_power? Like this:
> >
> > 	if (!pdata->is_ac_online && pdata->ac_monitor_gpio)
> > 		pdata->is_ac_online = pda_ac_monitor_gpio;
> >
> > Should look quite cool, I think.
> >
> > (Plus, we might get rid of ac/usb stuff in that driver, and
> > pass enum power_supply_type to the callbacks instead).
> >
> 
> Hi
> 
> Hm... I guess it can be, but on the other hand most platform bus chargers
> type
> devices can be, because the pda_power driver is keep pretty generic with
> custom init,
> status and exit callbacks.
> 
> - Lars

I didn't see any more discussion on this. Is the plan to integrate the gpio-charger driver as is or to instead try to integrate support for this into pda_power?

-rhyland