linux-kernel - Re: gpiolib and sleeping gpios

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Message-ID: <20100621050957.GA23094@pengutronix.de>
Date:	Mon, 21 Jun 2010 07:09:57 +0200
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	David Brownell <david-b@...bell.net>
Cc:	Ryan Mallon <ryan@...ewatersys.com>,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	gregkh@...e.de, linux kernel <linux-kernel@...r.kernel.org>,
	ext-jani.1.nikula@...ia.com,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: gpiolib and sleeping gpios

Hi,

On Sun, Jun 20, 2010 at 07:40:46PM -0700, David Brownell wrote:
> > > And they will trigger runtime warnings, and
> > > thus eventually get fixed.
> > \
> >   }
> > 
> >   err = gpio_request(some_gpio, "some_gpio",
> >           GPIOF_NO_SLEEP);
> 
> 
> NAK ... keep it simple.  Such flags are
> clearly not necessary...
> 
> I understand that some folk are bothered
> by concepts/frameworks that seem "too simple"
> and thus want to complexify them.  In this
> case I am in a position to help avoid that.
> Complexity is not a virtue.
I'm against such an additional flag, too.  But I still think merging
gpio_get_value and gpio_get_value_cansleep is nice.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
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