[PATCH v3 2/4] Documentation: dt: iio: at91-sama5d2_adc: add adtrg trigger binding
From: Eugen Hristev <hidden>
Date: 2017-05-25 11:20:30
Also in:
linux-devicetree, linux-iio, lkml
Subsystem:
iio subsystem and drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Jonathan Cameron, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Add node information for ADTRG hardware pin and the three possible edge nodes that are available for the driver Signed-off-by: Eugen Hristev <redacted> --- .../devicetree/bindings/iio/adc/at91-sama5d2_adc.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt b/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
index 3223684..e30ede3 100644
--- a/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt@@ -11,6 +11,13 @@ Required properties: - atmel,min-sample-rate-hz: Minimum sampling rate, it depends on SoC. - atmel,max-sample-rate-hz: Maximum sampling rate, it depends on SoC. - atmel,startup-time-ms: Startup time expressed in ms, it depends on SoC. + - atmel,trigger-edge-type: phandle to one of the adtrg possible edge types + +Required adtrg node: + - Required edge nodes: + For each possible edge type for the ADTRG hardware trigger pin, + a specific sub node. The driver recognises only the three possible + edge types: external_rising, external_falling, external_any. Example:
@@ -25,4 +32,14 @@ adc: adc at fc030000 { atmel,startup-time-ms = <4>; vddana-supply = <&vdd_3v3_lp_reg>; vref-supply = <&vdd_3v3_lp_reg>; + atmel,trigger-edge-type = <&external_rising>; + + adtrg: adtrg { + external_rising: external_rising { + }; + external_falling: external_falling { + }; + external_any: external_any { + }; + }; }
--
2.7.4