linux-kernel - Re: [PATCH 05/26] mfd: ab8500-gpadc: Change to mdelay for greater resolution

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Date:	Mon, 28 Jan 2013 08:43:25 +0000
From:	Lee Jones <lee.jones@...aro.org>
To:	Samuel Ortiz <sameo@...ux.intel.com>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	arnd@...db.de, linus.walleij@...ricsson.com,
	Jonas Aaberg <jonas.aberg@...ricsson.com>
Subject: Re: [PATCH 05/26] mfd: ab8500-gpadc: Change to mdelay for greater
 resolution

On Mon, 28 Jan 2013, Samuel Ortiz wrote:

> Hi Lee, Jonas,
> 
> On Tue, Jan 15, 2013 at 12:55:45PM +0000, Lee Jones wrote:
> > From: Jonas Aaberg <jonas.aberg@...ricsson.com>
> > 
> > The resolution of msleep is related to HZ, so with HZ set to
> > 100 any msleep of less than 10ms will become ~10ms.
> usleep_range would be more appropriate, sleeping should be preferred over
> spinning.

I believe this patch was written before usleep_range() was around. This
is addressed in a latter patch. Please allow this one in for a)
historical reasons (trying to keep the development history) and b) to
prevent any conflicts when we do reach the fixup patch.

-- 
Lee Jones
Linaro ST-Ericsson Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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