linux-kernel - Re: [PATCH 1/5] gpiolib: introduce set

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Message-Id: <20100520121652.cbcbb8b4.akpm@linux-foundation.org>
Date:	Thu, 20 May 2010 12:16:52 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	felipe.balbi@...ia.com,
	Linux OMAP Mailing List <linux-omap@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Tony Lindgren <tony@...mide.com>,
	David Brownell <david-b@...bell.net>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: Re: [PATCH 1/5] gpiolib: introduce set_debounce method

On Thu, 20 May 2010 20:04:17 +0100
Alan Cox <alan@...rguk.ukuu.org.uk> wrote:

> 
> > > +EXPORT_SYMBOL_GPL(gpio_set_debounce);
> > 
> > nitlet: I suspect this function is taking gpio_lock sooner than it
> > strictly needs to.  Find-tuning that would decrease contention by an
> > insignificant amount ;)
> 
> We need this for Intel MID boxes as well Andrew - so its a generic need.
> 

Thanks.

I'm still wobbling on the 35-vs-36 line.  Is that a big need or a
little need?  What user-visible problem does it solve, etc?

Did anyone test it on the MID boxes?

etc ;)
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