diff options
| author | Fabrice Gasnier <fabrice.gasnier@st.com> | 2017-03-31 14:32:37 +0200 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2017-04-03 20:45:02 +0100 |
| commit | 021087309d2801d6d94bbd6be7e3f8297edb3190 (patch) | |
| tree | 4eb3343d52ebe8349bdf32b40357f40126f312d8 /Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt | |
| parent | 6a95d825f6a407fb214e92e8c63c905fceaea81b (diff) | |
dt-bindings: iio: stm32-adc: add option to set resolution
Add documentation for 'assigned-resolution-bits' dt optional property.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt index 5dfc88ec24a4..e35f9f1b3200 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@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... |