[PATCH v2 1/2] dt-bindings: iio: stm32-adc: add option to set resolution
From: Fabrice Gasnier <hidden>
Date: 2017-03-31 12:33:50
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 documentation for 'assigned-resolution-bits' dt optional property. Signed-off-by: Fabrice Gasnier <redacted> --- Changes in v2: - rename property from 'st,adc-res' to 'assigned-resolution-bits' so it is more common. --- Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt | 4 ++++ 1 file changed, 4 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..e35f9f1 100644
--- a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt@@ -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 at 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...
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1.9.1