diff options
| author | Naresh Solanki | 2024-02-06 16:25:01 +0530 |
|---|---|---|
| committer | Jonathan Cameron | 2024-02-17 16:16:12 +0000 |
| commit | f1f99fcbf997b50a32844c31523ed41da0428f08 (patch) | |
| tree | 0cdee8bb39ac34955ed2f2786b994eebb9bf3749 /Documentation | |
| parent | 2ec17b1950bb824f9a8d5f055e466d02c40eb64c (diff) | |
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: Naresh Solanki <naresh.solanki@9elements.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240206105502.648255-1-naresh.solanki@9elements.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/iio/afe/voltage-divider.yaml | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/afe/voltage-divider.yaml b/Documentation/devicetree/bindings/iio/afe/voltage-divider.yaml index dddf97b50549..4151f99b42aa 100644 --- a/Documentation/devicetree/bindings/iio/afe/voltage-divider.yaml +++ b/Documentation/devicetree/bindings/iio/afe/voltage-divider.yaml @@ -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. |