Messages in this thread | | | From | Linus Walleij <> | Date | Thu, 23 Feb 2017 16:03:28 +0100 | Subject | Re: [RFC 3/4] dt-bindings: iio: add support for GPIO triggers |
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On Fri, Feb 17, 2017 at 5:03 PM, Fabrice Gasnier <fabrice.gasnier@st.com> wrote:
> Document Industrial I/O GPIO trigger support. > > Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> (...) > +- gpio-trigger-rising-edge: A rising edge on GPIO will trigger. > +- gpio-trigger-falling-edge: A falling edge on GPIO will trigger. > + Note: Both rising and falling edge may be used. In case none of > + rising or falling edge is selected, rising edge is selected by > + default.
We have GPIO_ACTIVE*_HIGH and GPIO_ACTIVE_LOW in the gpios second cell already.
Can't we simply use that and specify that for this usecase, reading that cell as GPIO_ACTIVE_HIGH == trigger on rising edge and GPIO_ACTIVE_LOW == trigger on falling edge?
Yours, Linus Walleij
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