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Diffstat (limited to 'Documentation/devicetree/bindings/regulator/maxim,max8973.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/regulator/maxim,max8973.yaml | 139 | 
1 files changed, 139 insertions, 0 deletions
| diff --git a/Documentation/devicetree/bindings/regulator/maxim,max8973.yaml b/Documentation/devicetree/bindings/regulator/maxim,max8973.yaml new file mode 100644 index 000000000000..54522827265b --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/maxim,max8973.yaml @@ -0,0 +1,139 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/regulator/maxim,max8973.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Maxim MAX8973/MAX77621 voltage regulator + +maintainers: +  - Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> + +allOf: +  - $ref: regulator.yaml# + +properties: +  compatible: +    enum: +      - maxim,max8973 +      - maxim,max77621 + +  junction-warn-millicelsius: +    description: | +      Junction warning temperature threshold in millicelsius. If die +      temperature crosses this level then device generates the warning +      interrupts. +      Please note that thermal functionality is only supported on MAX77621. The +      supported threshold warning temperature for MAX77621 are 120 degC and 140 +      degC. + +  maxim,dvs-gpio: +    maxItems: 1 +    description: | +      GPIO which is connected to DVS pin of device. + +  maxim,dvs-default-state: +    $ref: /schemas/types.yaml#/definitions/uint32 +    enum: [0, 1] +    description: | +      Default state of GPIO during initialisation. +      1 for HIGH and 0 for LOW. + +  maxim,externally-enable: +    type: boolean +    description: | +      Externally control the regulator output enable/disable. + +  maxim,enable-gpio: +    maxItems: 1 +    description: | +      GPIO for enable control. If the valid GPIO is provided then externally +      enable control will be considered. + +  maxim,enable-remote-sense: +    type: boolean +    description: Enable remote sense. + +  maxim,enable-falling-slew-rate: +    type: boolean +    description: Enable falling slew rate. + +  maxim,enable-active-discharge: +    type: boolean +    description: Eable active discharge. + +  maxim,enable-frequency-shift: +    type: boolean +    description: Enable 9% frequency shift. + +  maxim,enable-bias-control: +    type: boolean +    description: | +      Enable bias control which can reduce the startup delay to 20us from 220us. + +  maxim,enable-etr: +    type: boolean +    description: Enable Enhanced Transient Response. + +  maxim,enable-high-etr-sensitivity: +    type: boolean +    description: | +      Enhanced transient response circuit is enabled and set for high +      sensitivity. If this property is available then etr will be enable +      default. +      Enhanced transient response (ETR) will affect the configuration of CKADV. + +  reg: +    maxItems: 1 + +required: +  - compatible +  - reg + +unevaluatedProperties: false + +examples: +  - | +    i2c { +        #address-cells = <1>; +        #size-cells = <0>; + +        regulator@1b { +            compatible = "maxim,max8973"; +            reg = <0x1b>; + +            regulator-min-microvolt = <935000>; +            regulator-max-microvolt = <1200000>; +            regulator-boot-on; +            regulator-always-on; +        }; +    }; + +  - | +    #include <dt-bindings/gpio/tegra-gpio.h> +    #include <dt-bindings/interrupt-controller/irq.h> + +    i2c { +        #address-cells = <1>; +        #size-cells = <0>; + +        regulator@1b { +            compatible = "maxim,max77621"; +            reg = <0x1b>; +            interrupt-parent = <&gpio>; +            interrupts = <TEGRA_GPIO(Y, 1) IRQ_TYPE_LEVEL_LOW>; + +            regulator-always-on; +            regulator-boot-on; +            regulator-min-microvolt = <800000>; +            regulator-max-microvolt = <1231250>; +            regulator-name = "PPVAR_CPU"; +            regulator-ramp-delay = <12500>; +            maxim,dvs-default-state = <1>; +            maxim,enable-active-discharge; +            maxim,enable-bias-control; +            maxim,enable-etr; +            maxim,enable-gpio = <&pmic 5 GPIO_ACTIVE_HIGH>; +            maxim,externally-enable; +        }; +    }; |