linux-kernel - Re: [PATCH 3/3] MFD: MAX8997: IRQ definition moved to public header.

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Date:	Mon, 4 Jul 2011 23:19:03 -0700
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	MyungJoo Ham <myungjoo.ham@...il.com>
Cc:	linux-kernel@...r.kernel.org, Samuel Ortiz <sameo@...ux.intel.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Liam Girdwood <lrg@...mlogic.co.uk>,
	Donggeun Kim <dg77.kim@...sung.com>
Subject: Re: [PATCH 3/3] MFD: MAX8997: IRQ definition moved to public header.

On Tue, Jul 05, 2011 at 02:57:54PM +0900, MyungJoo Ham wrote:
> On Tue, Jul 5, 2011 at 2:16 AM, Mark Brown

> > My understanding was that one of the goals of the power_supply subsystem
> > was to support this sort of interaction? This (and your subsequent
> > paragraphs) all sounds entirely sensible but it should be being dealt
> > with at a higher level with the various charger drivers delivering
> > events into a subsystem or board driver which coordinates them all.  It
> > seems like the driver should be doing the work of dealing with the
> > actual interrupts.

> Yes, I also think that it is supposed to read and update attributes of
> chargers. However, I don't see any ways to interconnect chargers and
> related devices with power_supply subsystem.

Nor do I, but this is just software so we should be able to make it do
what's needed here.

> If we let a user process interconnect the chargers and related
> devices, we need to allow userland to access (both read and write)

I didn't say anything about userspace, and I wouldn't expect userspace
to do anything except policy here.
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