| Message ID | 20240904072718.1143440-7-aardelean@baylibre.com (mailing list archive) |
|---|---|
| State | Changes Requested |
| Headers | show |
| Series | iio: adc: ad7606: add support for AD7606C-{16,18} parts | expand |
On Wed, Sep 04, 2024 at 10:27:14AM +0300, Alexandru Ardelean wrote: > Some ADCs have channels with negative and positive inputs, which can be > used to measure differential voltage levels. These inputs/pins are > dedicated (to the given channel) and cannot be muxed as with other ADCs. > > For those types of setups, the 'diff-channels' property can be specified to > be used with the channel number (or reg property) for both negative and > positive inputs/pins. > > Signed-off-by: Alexandru Ardelean <aardelean@baylibre.com> > --- > Documentation/devicetree/bindings/iio/adc/adc.yaml | 4 ++++ > 1 file changed, 4 insertions(+) Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Best regards, Krzysztof
diff --git a/Documentation/devicetree/bindings/iio/adc/adc.yaml b/Documentation/devicetree/bindings/iio/adc/adc.yaml index 8e7835cf36fd..b9bc02b5b07a 100644 --- a/Documentation/devicetree/bindings/iio/adc/adc.yaml +++ b/Documentation/devicetree/bindings/iio/adc/adc.yaml @@ -37,6 +37,10 @@ properties: to both the positive and negative inputs of a differential ADC. The first value specifies the positive input pin, the second specifies the negative input pin. + There are also some ADCs, where the differential channel has dedicated + positive and negative inputs which can be used to measure differential + voltage levels. For those setups, this property can be configured with + the 'reg' property for both inputs (i.e. diff-channels = <reg reg>). single-channel: $ref: /schemas/types.yaml#/definitions/uint32
Some ADCs have channels with negative and positive inputs, which can be used to measure differential voltage levels. These inputs/pins are dedicated (to the given channel) and cannot be muxed as with other ADCs. For those types of setups, the 'diff-channels' property can be specified to be used with the channel number (or reg property) for both negative and positive inputs/pins. Signed-off-by: Alexandru Ardelean <aardelean@baylibre.com> --- Documentation/devicetree/bindings/iio/adc/adc.yaml | 4 ++++ 1 file changed, 4 insertions(+)