voltage-divider is always an iio consumer at the same time it is
optionally an iio provider.
Hence add #io-channel-cells
Also update example.
Signed-off-by: Naresh Solanki <naresh.solanki@xxxxxxxxxxxxx>
---
.../bindings/iio/afe/voltage-divider.yaml | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/iio/afe/voltage-divider.yaml b/Documentation/devicetree/bindings/iio/afe/voltage-divider.yaml
index dddf97b50549..98fec8548cc3 100644
--- a/Documentation/devicetree/bindings/iio/afe/voltage-divider.yaml
+++ b/Documentation/devicetree/bindings/iio/afe/voltage-divider.yaml
@@ -39,6 +39,13 @@ 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.
+ const: 1
+
output-ohms:
description:
Resistance Rout over which the output voltage is measured. See full-ohms.
@@ -75,12 +82,17 @@ examples:
spi-max-frequency = <1000000>;
};
};
- sysv {
+ p12v_vd: sysv {
compatible = "voltage-divider";
io-channels = <&maxadc 1>;
+ #io-channel-cells = <1>;
/* Scale the system voltage by 22/222 to fit the ADC range. */
output-ohms = <22>;
full-ohms = <222>; /* 200 + 22 */
};
+ iio-hwmon {
+ compatible = "iio-hwmon";
+ io-channels = <&p12v_vd 0>;
+ };
...
base-commit: 861c0981648f5b64c86fd028ee622096eb7af05a
--
2.42.0
