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Commit 02108730 authored by Fabrice Gasnier's avatar Fabrice Gasnier Committed by Jonathan Cameron
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dt-bindings: iio: stm32-adc: add option to set resolution 



Add documentation for 'assigned-resolution-bits' dt optional property.

Signed-off-by: default avatarFabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 6a95d825

Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt

+4 −0
Original line number Diff line number Diff line
@@ -57,6 +57,9 @@ 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.

- assigned-resolution-bits: Resolution (bits) to use for conversions. Must

  match device available resolutions (e.g. can be 6, 8, 10 or 12 on stm32f4).

  Default is maximum resolution if unset.



Example:

	adc: adc@40012000 {
@@ -84,6 +87,7 @@ Example: 
			st,adc-channels = <8>;

			dmas = <&dma2 0 0 0x400 0x0>;

			dma-names = "rx";

			assigned-resolution-bits = <8>;

		};

		...

		other adc child nodes follow...