Messages in this thread | | | Date | Fri, 2 Mar 2007 10:26:17 +0100 | From | Haavard Skinnemoen <> | Subject | Re: [patch 2.6.20-rc2] gpio_direction_output() needs an initial value |
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On Thu, 1 Mar 2007 18:25:09 -0800 David Brownell <david-b@pacbell.net> wrote:
> It's been pointed out that output GPIOs should have an initial value, to > avoid signal glitching ... among other things, it can be some time before > a driver is ready. This patch corrects that oversight, fixing > > - documentation > - platforms supporting the GPIO interface > - users of that call (just one for now, others are pending) > > Note that most platforms are clear about the hardware letting the output > value be set before the pin direction is changed, but the s3c241x docs > are vague on that topic ... so those chips might not avoid the glitches. > > Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Thanks, Dave.
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