lkml.org 
[lkml]   [2017]   [Feb]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[RFC 3/4] dt-bindings: iio: add support for GPIO triggers
Date
Document Industrial I/O GPIO trigger support.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
---
.../bindings/iio/trigger/iio-trig-gpio.txt | 26 ++++++++++++++++++++++
1 file changed, 26 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/trigger/iio-trig-gpio.txt

diff --git a/Documentation/devicetree/bindings/iio/trigger/iio-trig-gpio.txt b/Documentation/devicetree/bindings/iio/trigger/iio-trig-gpio.txt
new file mode 100644
index 0000000..a8dbf5c
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/trigger/iio-trig-gpio.txt
@@ -0,0 +1,26 @@
+Industrial I/O - GPIO based trigger
+
+GPIOs may be used as IIO trigger provider, when trigger is connected to
+GPIO lines.
+
+Required properties:
+- compatible: Should be "iio-gpio-trigger"
+- gpios: Should specify one GPIO line used as trigger source.
+ See Documentation/devicetree/bindings/gpio/gpio.txt
+- #io-trigger-cells: Should be 0, as simple trigger provider.
+ See Documentation/devicetree/bindings/iio/iio-bindings.txt
+
+Optional properties:
+- label: String to specifiy trigger name.
+- 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.
+
+Example:
+ gpiotrig0: iio-gpio-trigger0 {
+ #io-trigger-cells = <0>;
+ compatible = "iio-gpio-trigger";
+ gpios = <&gpioa 11 0>;
+ }
--
1.9.1
\
 
 \ /
  Last update: 2017-02-17 17:07    [W:0.063 / U:0.772 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site