STM32 ADC trigger polarity can be set to either rising, falling or both edges. Allow to configure it from dt.
Signed-off-by: Fabrice Gasnier <[email protected]> --- Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt index 5dfc88e..6c6d968 100644 --- a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt +++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt @@ -57,6 +57,8 @@ Optional properties: - dmas: Phandle to dma channel for this ADC instance. See ../../dma/dma.txt for details. - dma-names: Must be "rx" when dmas property is being used. +- st,trigger-polarity: Must be 0 (default), 1 or 2 to set default trigger + polarity to respectively "rising-edge", "falling-edge" or "both-edges". Example: adc: adc@40012000 { @@ -84,6 +86,7 @@ Example: st,adc-channels = <8>; dmas = <&dma2 0 0 0x400 0x0>; dma-names = "rx"; + st,trigger-polarity = <1>; }; ... other adc child nodes follow... -- 1.9.1
