From: Mark Brown <broonie@sirena.org.uk>
To: David Brownell <david-b@pacbell.net>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>,
lkml <linux-kernel@vger.kernel.org>,
OMAP <linux-omap@vger.kernel.org>
Subject: Re: [patch 2.6.29-rc7 regulator-next] regulator: refcount fixes
Date: Thu, 12 Mar 2009 10:37:48 +0000 [thread overview]
Message-ID: <20090312103744.GA24376@sirena.org.uk> (raw)
In-Reply-To: <200903111743.34708.david-b@pacbell.net>
On Wed, Mar 11, 2009 at 04:43:34PM -0800, David Brownell wrote:
> Buggy consumers could notice different bug symptoms. The main
> example would be refcounting bugs; also, any (out-of-tree) users
> of the experimental regulator_set_optimum_mode() stuff which
> don't call it when they're done using a regulator.
I'm OK with this from a code point of view so
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
However any consumers that take advantage of this won't be able to
safely share a regulator without extra work since they have no way of
telling why a regulator is in the state that it's in without extra
stuff. We should probably have something along the lines of a
regulator_get_exclusive() for them. Previously the consumer counting
would have stopped them interfering with enables done by other
consumers.
There will be other consumers that can't safely share a regulator anyway
(eg, requiring additional code to notice and handle voltage changes) so
it'd be a good thing to have.
next prev parent reply other threads:[~2009-03-12 10:51 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-12 0:43 [patch 2.6.29-rc7 regulator-next] regulator: refcount fixes David Brownell
2009-03-12 2:32 ` [patch 2.6.29-rc7 regulator-next] regulator: init fixes David Brownell
2009-03-12 12:01 ` Mark Brown
2009-03-15 0:25 ` [patch 2.6.29-rc8 regulator-next] regulator: init fixes (v4) David Brownell
2009-03-15 0:37 ` Mark Brown
2009-03-15 4:05 ` David Brownell
2009-03-16 21:54 ` Mark Brown
2009-03-17 18:15 ` David Brownell
2009-03-17 20:08 ` Mark Brown
2009-03-18 19:25 ` David Brownell
2009-03-18 20:33 ` Mark Brown
2009-03-18 21:02 ` David Brownell
2009-03-19 19:27 ` Mark Brown
2009-03-18 21:14 ` David Brownell
2009-03-19 16:59 ` Mark Brown
2009-03-15 4:16 ` [patch 2.6.29-rc7 regulator-next] regulator: init fixes David Brownell
2009-03-12 10:37 ` Mark Brown [this message]
2009-03-12 20:35 ` [patch 2.6.29-rc7 regulator-next] regulator: refcount fixes David Brownell
2009-03-12 21:05 ` Mark Brown
2009-03-12 23:02 ` David Brownell
2009-03-13 1:38 ` Mark Brown
2009-03-14 21:29 ` David Brownell
2009-03-15 0:30 ` Mark Brown
2009-03-15 4:27 ` David Brownell
2009-03-12 10:56 ` Liam Girdwood
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