Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1586949

Re: [RFC 3/4] dt-bindings: iio: add support for GPIO triggers

Show all headers | View raw

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

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[RFC 0/4] iio: trigger: Add OF support and GPIO based trigger Fabrice Gasnier <fabrice.gasnier@st.com> - 2017-02-17 17:10 +0100
  [RFC 1/4] dt-bindings: iio: introduce trigger providers, consumers Fabrice Gasnier <fabrice.gasnier@st.com> - 2017-02-17 17:10 +0100
  [RFC 4/4] iio: trigger: add GPIO trigger Fabrice Gasnier <fabrice.gasnier@st.com> - 2017-02-17 17:10 +0100
    Re: [RFC 4/4] iio: trigger: add GPIO trigger Lars-Peter Clausen <lars@metafoo.de> - 2017-02-17 17:20 +0100
      Re: [RFC 4/4] iio: trigger: add GPIO trigger Jonathan Cameron <jic23@kernel.org> - 2017-02-18 20:30 +0100
        Re: [RFC 4/4] iio: trigger: add GPIO trigger Fabrice Gasnier <fabrice.gasnier@st.com> - 2017-02-20 17:30 +0100
          Re: [RFC 4/4] iio: trigger: add GPIO trigger Jonathan Cameron <jic23@kernel.org> - 2017-02-25 17:30 +0100
  [RFC 2/4] iio: trigger: add OF support Fabrice Gasnier <fabrice.gasnier@st.com> - 2017-02-17 17:10 +0100
  [RFC 3/4] dt-bindings: iio: add support for GPIO triggers Fabrice Gasnier <fabrice.gasnier@st.com> - 2017-02-17 17:10 +0100
    Re: [RFC 3/4] dt-bindings: iio: add support for GPIO triggers Jonathan Cameron <jic23@kernel.org> - 2017-02-18 20:30 +0100
    Re: [RFC 3/4] dt-bindings: iio: add support for GPIO triggers Linus Walleij <linus.walleij@linaro.org> - 2017-02-23 16:20 +0100
      Re: [RFC 3/4] dt-bindings: iio: add support for GPIO triggers Fabrice Gasnier <fabrice.gasnier@st.com> - 2017-02-23 16:50 +0100
  Re: [RFC 0/4] iio: trigger: Add OF support and GPIO based trigger Daniel Baluta <daniel.baluta@gmail.com> - 2017-02-17 17:30 +0100
    Re: [RFC 0/4] iio: trigger: Add OF support and GPIO based trigger Jonathan Cameron <jic23@kernel.org> - 2017-02-18 20:20 +0100

csiph-web