diff options
| author |   Mircea Caprioru <mircea.caprioru@analog.com> | 2019-06-25 11:11:28 +0300 |
|---|---|---|
| committer |   Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2019-06-26 21:24:21 +0100 |
| commit | c444e956a26115e605b4a345a39da294576f8d69 (patch) | |
| tree | 160475172966f2f422c27628f871aa13453f125e | |
| parent | Convert AD7124 bindings documentation to YAML format. (diff) | |
| download | linux-dev-c444e956a26115e605b4a345a39da294576f8d69.tar.xz linux-dev-c444e956a26115e605b4a345a39da294576f8d69.zip | |
dt-bindings: iio: adc: Add buffered input property
This patch adds the buffered mode device tree property for positive and
negative inputs. Each option can be enabled independently.
In buffered mode, the input channel feeds into a high impedance input stage
of the buffer amplifier. Therefore, the input can tolerate significant
source impedances and is tailored for direct connection to external
resistive type sensors such as strain gages or RTDs.
Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
| -rw-r--r-- | Documentation/devicetree/bindings/iio/adc/adi,ad7124.yaml | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7124.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7124.yaml index 1b3d84d08609..cf494a08b837 100644 --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7124.yaml +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7124.yaml @@ -100,6 +100,14 @@ patternProperties: description: see Documentation/devicetree/bindings/iio/adc/adc.txt type: boolean + adi,buffered-positive: + description: Enable buffered mode for positive input. + type: boolean + + adi,buffered-negative: + description: Enable buffered mode for negative input. + type: boolean + required: - reg - diff-channels @@ -123,6 +131,7 @@ examples: reg = <0>; diff-channels = <0 1>; adi,reference-select = <0>; + adi,buffered-positive; }; channel@1 { @@ -130,6 +139,8 @@ examples: bipolar; diff-channels = <2 3>; adi,reference-select = <0>; + adi,buffered-positive; + adi,buffered-negative; }; channel@2 { |