Even though we had the iio-hwmon driver for some time and a number of
boards using it already, we never had a binding for it. Let's add it
based on what the driver expects and the boards are providing.
Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
Cc: Jean Delvare <jdelvare@xxxxxxxx>
Cc: Jonathan Cameron <jic23@xxxxxxxxxx>
Cc: linux-hwmon@xxxxxxxxxxxxxxx
Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
---
Changes from v1:
- Reduced the maximum number of io-channels, and added a comment for
the limitation
---
.../devicetree/bindings/hwmon/iio-hwmon.yaml | 37 +++++++++++++++++++
1 file changed, 37 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwmon/iio-hwmon.yaml
diff --git a/Documentation/devicetree/bindings/hwmon/iio-hwmon.yaml b/Documentation/devicetree/bindings/hwmon/iio-hwmon.yaml
new file mode 100644
index 000000000000..f5a6cc3efd33
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/iio-hwmon.yaml
@@ -0,0 +1,37 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/hwmon/iio-hwmon.yaml#";
+$schema: "http://devicetree.org/meta-schemas/core.yaml#";
+
+title: ADC-attached Hardware Sensor Device Tree Bindings
+
+maintainers:
+ - Jonathan Cameron <jic23@xxxxxxxxxx>
+
+description: >
+ Bindings for hardware monitoring devices connected to ADC controllers
+ supporting the Industrial I/O bindings.
+
+properties:
+ compatible:
+ const: iio-hwmon
+
+ io-channels:
+ minItems: 1
+ maxItems: 8 # Should be enough
+ description: >
+ List of phandles to ADC channels to read the monitoring values
+
+required:
+ - compatible
+ - io-channels
+
+additionalProperties: false
+
+examples:
+ - |
+ iio-hwmon {
+ compatible = "iio-hwmon";
+ io-channels = <&adc 1>, <&adc 2>;
+ };
--
2.31.1
