Commit f1f99fcb authored by Naresh Solanki's avatar Naresh Solanki Committed by Jonathan Cameron
Browse files

dt-bindings: iio: afe: voltage-divider: Add io-channel-cells 



Enable the voltage divider to both receive and provide measurement
services by adding #io-channel-cells.

This is especially valuable in scenarios where an ADC has an analog
frontend, like a voltage divider, and obtaining its raw value isn't
interesting. It is desired to get the real voltage before the voltage
divider.

Signed-off-by: default avatarNaresh Solanki <naresh.solanki@9elements.com>
Reviewed-by: default avatarConor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240206105502.648255-1-naresh.solanki@9elements.com


Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 2ec17b19

Documentation/devicetree/bindings/iio/afe/voltage-divider.yaml

+11 −0
Original line number Diff line number Diff line
@@ -39,6 +39,17 @@ properties: 
    description: |

      Channel node of a voltage io-channel.



  '#io-channel-cells':

    description:

      In addition to consuming the measurement services of a voltage

      output channel, the voltage divider can act as a provider of

      measurement services to other devices. This is particularly

      useful in scenarios wherein an ADC has an analog frontend,

      such as a voltage divider, and then consuming its raw value

      isn't interesting. In this case, the voltage before the divider

      is desired.

    const: 1



  output-ohms:

    description:

      Resistance Rout over which the output voltage is measured. See full-ohms.