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

Pavel Machek
2016-08-17T15:55:35Z

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
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