From: Mark Brown <broonie@kernel.org>
To: Thierry Reding <thierry.reding@gmail.com>
Cc: Allen Martin <amartin@nvidia.com>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] regulator: Ensure voltages are within the allowed range
Date: Wed, 12 Nov 2014 14:48:37 +0000 [thread overview]
Message-ID: <20141112144837.GI3815@sirena.org.uk> (raw)
In-Reply-To: <20141112120201.GB30821@ulmo.nvidia.com>
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On Wed, Nov 12, 2014 at 01:02:04PM +0100, Thierry Reding wrote:
> Perhaps rather than checking that the voltage is within the valid range
> we could at least cover the case where voltage is zero, which is what
> triggered me to write this patch.
Anything which has a voltage of zero is buggy anyway, zero volts is the
off state and should show up as such. If we don't have a voltage then
the enable should fail.
> Do you have any recommendations to work around this other than adjusting
> the actual voltage to be within the range?
Such regulators need a way of providing a bootsrapping voltage if
they're off when we start I think.
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prev parent reply other threads:[~2014-11-12 14:50 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-12 10:12 [PATCH] regulator: Ensure voltages are within the allowed range Thierry Reding
2014-11-12 11:45 ` Mark Brown
2014-11-12 12:02 ` Thierry Reding
2014-11-12 14:48 ` Mark Brown [this message]
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