The chips have a 'start conversion' and a 'end of conversion' pair of pins. They can be used but this is absolutely not mandatory as regular polling is supported by the chip depending on its internal clocking setup. There is no physical reason to force the use of interrupts so turn them optional. Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx> --- Documentation/devicetree/bindings/iio/adc/max1027-adc.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt b/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt index e680c61dfb84..7b23d68f655c 100644 --- a/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt +++ b/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt @@ -3,6 +3,8 @@ Required properties: - compatible: Should be "maxim,max1027" or "maxim,max1029" or "maxim,max1031" - reg: SPI chip select number for the device + +Optional properties: - interrupts: IRQ line for the ADC see: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt -- 2.20.1
