linux-kernel - Re: [PATCH] mfd: Read wm831x AUXADC conversion results before acknowledging interrupt

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Message-ID: <20110602104044.GE3085@opensource.wolfsonmicro.com>
Date:	Thu, 2 Jun 2011 11:40:45 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Samuel Ortiz <sameo@...ux.intel.com>
Cc:	linux-kernel@...r.kernel.org, patches@...nsource.wolfsonmicro.com
Subject: Re: [PATCH] mfd: Read wm831x AUXADC conversion results before
 acknowledging interrupt

On Thu, Jun 02, 2011 at 11:28:36AM +0100, Mark Brown wrote:
> Ensure that there's no possibility of loosing an AUXADC interrupt by reading
> the conversion result in the IRQ handler when using interrupts. Otherwise
> it's possible that under very heavy load a new conversion could be initiated
> before the acknowledgement for a previous interrupt has happened.

Sorry, fat fingers with the commmit - new version coming shortly.
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