Messages in this thread |  | | | Date | Sun, 15 Feb 2009 15:47:50 -0700 | | From | Jordan Crouse <> | | Subject | Re: [PATCH] AMD Geode CS5535/5536 GPIO driver |
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Alessandro Zummo wrote: > On Thu, 5 Feb 2009 16:12:20 -0800 > David Brownell <david-b@pacbell.net> wrote: > >> Unless this hardware misbehaves when both output and input >> modes are enabled (e.g. in the window between those two calls), >> I'd suggest just not clearing INPUT_ENABLE. It's legit to >> ask for the *actual* value of an output line, e.g. for when >> it uses open drain mode. (And didn't this hardware have an >> option for open drain GPIO signaling?) > > seems reasonable, > I'll let the Geode people decide what to do here...
Sorry, I'm just getting around to answering this. I don't recall any situation where the hardware would mis-behave, but you never know with this bit of silicon.
I say leave them both on, and revisit it if you get flamed.
Jordan
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