| # 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; |
| }; |
| }; |
