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Subject[PATCH 1/2] dt-bindings: adc: provide max34408/9 device tree binding document
Date
The i2c driver with Rsense option for current monitoring.

Signed-off-by: Ivan Mikhaylov <fr0st61te@gmail.com>
---
.../bindings/iio/adc/maxim,max34408.yaml | 63 +++++++++++++++++++
1 file changed, 63 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/adc/maxim,max34408.yaml

diff --git a/Documentation/devicetree/bindings/iio/adc/maxim,max34408.yaml b/Documentation/devicetree/bindings/iio/adc/maxim,max34408.yaml
new file mode 100644
index 000000000000..ae7c6ddb13d8
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/maxim,max34408.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/maxim,max34408.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Two- and four-channel current monitors with overcurrent control.
+
+maintainers:
+ - Ivan Mikhaylov <fr0st61te@gmail.com>
+
+description: |
+ The MAX34408/MAX34409 are two- and four-channel current monitors that are
+ configured and monitored with a standard I2C/SMBus serial interface. Each
+ unidirectional current sensor offers precision high-side operation with a
+ low full-scale sense voltage. The devices automatically sequence through
+ two or four channels and collect the current-sense samples and average them
+ to reduce the effect of impulse noise. The raw ADC samples are compared to
+ user-programmable digital thresholds to indicate overcurrent conditions.
+ Overcurrent conditions trigger a hardware output to provide an immediate
+ indication to shut down any necessary external circuitry.
+
+ Specifications about the devices can be found at:
+ https://www.analog.com/media/en/technical-documentation/data-sheets/MAX34408-MAX34409.pdf
+
+properties:
+ compatible:
+ enum:
+ - maxim,max34408
+ - maxim,max34409
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ maxim,rsense-val-micro-ohms:
+ description:
+ Adjust the Rsense value to monitor higher or lower current levels.
+ enum: [250, 500, 1000, 5000, 10000, 50000, 100000, 200000, 500000]
+ default: 1000
+
+required:
+ - compatible
+ - reg
+ - maxim,rsense-val-micro-ohms
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@1e {
+ compatible = "maxim,max34409";
+ reg = <0x1e>;
+ maxim,rsense-val-micro-ohms = <1000>;
+ };
+ };
--
2.42.0
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