linux-kernel - Re: [PATCH] regulator: Provide optional dummy regulator for consumers

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Date:	Fri, 12 Feb 2010 11:24:15 +0000
From:	Liam Girdwood <lrg@...mlogic.co.uk>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	Mike Rapoport <mike@...pulab.co.il>,
	Grazvydas Ignotas <notasas@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] regulator: Provide optional dummy regulator for
 consumers

On Fri, 2010-02-12 at 10:18 +0000, Mark Brown wrote:
> In order to ease transitions with drivers are boards start using regulators
> provide an option to cause all regulator_get() calls to succeed, with a
> dummy always on regulator being supplied where one has not been configured.
> A warning is printed whenever the dummy regulator is used to aid system
> development.
> 
> This regulator does not implement any regulator operations but will allow
> simple consumers which only do enable() and disable() calls to run. It
> is kept separate from the fixed voltage regulator to avoid Kconfig
> confusion on the part of users when it is extended to allow boards to
> explicitly use the dummy regulator to simplify cases where the majority
> of supplies are from fixed regulators without software control.
> 
> This option is currently only effective for systems which do not specify
> full constriants. If required an override could also be provided to allow
> these systems to use the dummy regulator, though it is likely that
> unconfigured supplies on such systems will lead to error due to
> regulators being powered down more aggressively when not in use.
> 
> Signed-off-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>
> ---
> 

Applied.

Thanks

Liam

-- 
Freelance Developer, SlimLogic Ltd
ASoC and Voltage Regulator Maintainer.
http://www.slimlogic.co.uk

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