The hardware binding for i2c current monitoring device with overcurrent control. Signed-off-by: Ivan Mikhaylov <fr0st61te@xxxxxxxxx> --- .../bindings/iio/adc/maxim,max34408.yaml | 101 ++++++++++++++++++ 1 file changed, 101 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..cdf89fa4c80e --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/maxim,max34408.yaml @@ -0,0 +1,101 @@ +# 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@xxxxxxxxx> + +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,input1-rsense-val-micro-ohms: + description: + Adjust the Rsense value to monitor higher or lower current levels for + input 1. + enum: [250, 500, 1000, 5000, 10000, 50000, 100000, 200000, 500000] + default: 1000 + + maxim,input2-rsense-val-micro-ohms: + description: + Adjust the Rsense value to monitor higher or lower current levels for + input 2. + enum: [250, 500, 1000, 5000, 10000, 50000, 100000, 200000, 500000] + default: 1000 + + maxim,input3-rsense-val-micro-ohms: + description: + Adjust the Rsense value to monitor higher or lower current levels for + input 3. + enum: [250, 500, 1000, 5000, 10000, 50000, 100000, 200000, 500000] + default: 1000 + + maxim,input4-rsense-val-micro-ohms: + description: + Adjust the Rsense value to monitor higher or lower current levels for + input 4. + enum: [250, 500, 1000, 5000, 10000, 50000, 100000, 200000, 500000] + default: 1000 + + maxim,shtdn: + description: + Shutdown Output. Open-drain output. This output transitions to high impedance + when any of the digital comparator thresholds are exceeded as long as the ENA + pin is high. + type: boolean + + maxim,ena: + description: + SHTDN Enable Input. CMOS digital input. Connect to GND to clear the latch and + unconditionally deassert (force low) the SHTDN output and reset the shutdown + delay. Connect to VDD to enable normal latch operation of the SHTDN output. + type: boolean + + supply-vdd: true + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + i2c { + + #address-cells = <1>; + #size-cells = <0>; + + adc@1e { + compatible = "maxim,max34409"; + reg = <0x1e>; + maxim,input1-rsense-val-micro-ohms = <5000>; + maxim,input2-rsense-val-micro-ohms = <10000>; + }; + }; -- 2.42.0
