linux-kernel - [PATCH] regulator: provide dummy supply support

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Date:	Fri, 28 Oct 2011 22:26:57 +0200
From:	Sascha Hauer <s.hauer@...gutronix.de>
To:	linux-kernel@...r.kernel.org
Cc:	Liam Girdwood <lrg@...com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Paul Mundt <lethal@...ux-sh.org>,
	Tony Lindgren <tony@...mide.com>,
	Mike Frysinger <vapier@...too.org>, linux-sh@...r.kernel.org,
	linux-omap@...r.kernel.org, uclinux-dist-devel@...ckfin.uclinux.org
Subject: [PATCH] regulator: provide dummy supply support

Hi,

The following patch allows it for boards to register a dummy supply for
devices for which no software controllable regulator is available. The
current CONFIG_REGULATOR_DUMMY and (unused) regulator_use_dummy_regulator()
mechanisms only allow to provide a dummy regulator for *all* devices
for which no regulator is found. This would shadow real errors and thus
is not really an option for production kernels.

This patch may eventually superseed the current all-or-nothing approach.

This came to me while looking over Linus' smsc911x regulator support
patch and so I added all people affected by this patch to Cc.

Sascha

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