Re: [RFC 3/7] dt: bindings: Add nokia-bluetooth

From	Pavel Machek <pavel@ucw.cz>
Newsgroups	linux.kernel
Subject	Re: [RFC 3/7] dt: bindings: Add nokia-bluetooth
Date	2016-08-17 18:00 +0200
Message-ID	<s7bq2-32y-15@gated-at.bofh.it> (permalink)
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Hi!

> >> > +  - reset-gpios:           Should specify the gpio for bluetooth reset
> >> > +  - host-wakeup-gpios:             Should specify the gpio for host wakeup
> >>
> >> Should be interrupt instead?
> >
> > Yes this is mostly an interrupt, but I need to read the current
> > line state.
> 
> When? If the interrupt is level triggered, then you can get the line
> state based on whether you get an interrupt or not. If this needs to
> be a wakeup source (see the wakeup source binding), then it needs to
> be an interrupt.

What is wrong with GPIO? It is simply a piece of wire. Yes, we'll
configure it to generate an interrupt, or maybe not, but that's
software detail, the device tree just should not care....
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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[RFC 3/7] dt: bindings: Add nokia-bluetooth Sebastian Reichel <sre@kernel.org> - 2016-08-13 05:20 +0200
  Re: [RFC 3/7] dt: bindings: Add nokia-bluetooth Rob Herring <robh@kernel.org> - 2016-08-16 16:00 +0200
    Re: [RFC 3/7] dt: bindings: Add nokia-bluetooth Sebastian Reichel <sre@kernel.org> - 2016-08-17 01:30 +0200
      Re: [RFC 3/7] dt: bindings: Add nokia-bluetooth Rob Herring <robh@kernel.org> - 2016-08-17 15:20 +0200
        Re: [RFC 3/7] dt: bindings: Add nokia-bluetooth Pavel Machek <pavel@ucw.cz> - 2016-08-17 18:00 +0200

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