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@xxxxxxxxxxxxx>
---
.../devicetree/bindings/iio/afe/voltage-divider.yaml | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/Documentation/devicetree/bindings/iio/afe/voltage-divider.yaml b/Documentation/devicetree/bindings/iio/afe/voltage-divider.yaml
index dddf97b50549..fd3c511e1beb 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. It is desired to get the real voltage
+ before the voltage divider.
+ const: 1
+
output-ohms:
description:
Resistance Rout over which the output voltage is measured. See full-ohms.
base-commit: 99bd3cb0d12e85d5114425353552121ec8f93adc
--
2.42.0
