On Mon, Sep 02, 2024 at 01:36:29PM +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@xxxxxxxxxxxx> > --- > Documentation/devicetree/bindings/iio/adc/adc.yaml | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/Documentation/devicetree/bindings/iio/adc/adc.yaml b/Documentation/devicetree/bindings/iio/adc/adc.yaml > index 8e7835cf36fd..9b7a8e149639 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 the 'reg' property (i.e. diff-channels = <reg reg>). Please run scripts/checkpatch.pl and fix reported warnings. Then please run and (probably) fix more warnings. Some warnings can be ignored, especially from --strict run, but the code here looks like it needs a fix. Feel free to get in touch if the warning is not clear. Best regards, Krzysztof
