From: Marcello Sylvester Bauer <sylv@xxxxxxx> The MAX597x is a hot swap controller with configurable fault protection. It also has 10bit ADC for current & voltage measurements. Signed-off-by: Marcello Sylvester Bauer <sylv@xxxxxxx> Co-developed-by: Patrick Rudolph <patrick.rudolph@xxxxxxxxxxxxx> Signed-off-by: Patrick Rudolph <patrick.rudolph@xxxxxxxxxxxxx> Co-developed-by: Naresh Solanki <Naresh.Solanki@xxxxxxxxxxxxx> Signed-off-by: Naresh Solanki <Naresh.Solanki@xxxxxxxxxxxxx> --- .../bindings/mfd/maxim,max5970.yaml | 154 ++++++++++++++++++ 1 file changed, 154 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/maxim,max5970.yaml diff --git a/Documentation/devicetree/bindings/mfd/maxim,max5970.yaml b/Documentation/devicetree/bindings/mfd/maxim,max5970.yaml new file mode 100644 index 000000000000..edf0c23db4ca --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/maxim,max5970.yaml @@ -0,0 +1,154 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/maxim,max5970.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Regulator for MAX5970 smart switch from Maxim Integrated. + +maintainers: + - Patrick Rudolph <patrick.rudolph@xxxxxxxxxxxxx> + +description: | + The smart switch provides no output regulation, but independent fault protection + and voltage and current sensing. + Programming is done through I2C bus. + + Datasheets: + https://datasheets.maximintegrated.com/en/ds/MAX5970.pdf + https://datasheets.maximintegrated.com/en/ds/MAX5978.pdf + +properties: + compatible: + enum: + - maxim,max5970 + - maxim,max5978 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + leds: + type: object + description: + Properties for four LEDS. + + properties: + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + patternProperties: + "^led@[0-3]$": + $ref: /schemas/leds/common.yaml# + type: object + + additionalProperties: false + + vss1-supply: + description: Supply of the first channel. + + vss2-supply: + description: Supply of the second channel. + + regulators: + type: object + description: + Properties for both regulators. Also set value for shunt resistor used. + + patternProperties: + "^sw[0-1]$": + $ref: /schemas/regulator/regulator.yaml# + type: object + properties: + shunt-resistor-micro-ohms: + description: | + The value of current sense resistor in microohms. + + required: + - shunt-resistor-micro-ohms + + unevaluatedProperties: false + + additionalProperties: false + +required: + - compatible + - reg + - regulators + - vss1-supply + +allOf: + - if: + properties: + compatible: + enum: + - maxim,max5970 + then: + required: + - vss2-supply + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + regulator@3a { + compatible = "maxim,max5978"; + reg = <0x3a>; + vss1-supply = <&p3v3>; + + regulators { + sw0_ref_0: sw0 { + regulator-compatible = "SW0"; + shunt-resistor-micro-ohms = <12000>; + }; + }; + + leds { + #address-cells = <1>; + #size-cells = <0>; + led@0 { + reg = <0>; + label = "led0"; + default-state = "on"; + }; + led@1 { + reg = <1>; + label = "led1"; + default-state = "on"; + }; + }; + }; + }; + + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + regulator@3a { + compatible = "maxim,max5970"; + reg = <0x3a>; + vss1-supply = <&p3v3>; + vss2-supply = <&p5v>; + + regulators { + sw0_ref_1: sw0 { + regulator-compatible = "SW0"; + shunt-resistor-micro-ohms = <12000>; + }; + sw1_ref_1: sw1 { + regulator-compatible = "SW1"; + shunt-resistor-micro-ohms = <10000>; + }; + }; + }; + }; +... -- 2.37.3
