| # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause | |
| %YAML 1.2 | |
| --- | |
| $id: http://devicetree.org/schemas/regulator/lltc,ltc3676.yaml# | |
| $schema: http://devicetree.org/meta-schemas/core.yaml# | |
| title: Linear Technology LTC3676 8-output regulators | |
| maintainers: | |
| - Tim Harvey <tharvey@gateworks.com> | |
| description: | | |
| LTC3676 contains eight regulators, 4 switching SW1..SW4 and four LDO1..4 . | |
| properties: | |
| compatible: | |
| const: lltc,ltc3676 | |
| reg: | |
| maxItems: 1 | |
| interrupts: | |
| maxItems: 1 | |
| regulators: | |
| type: object | |
| additionalProperties: false | |
| description: | | |
| List of regulators provided by this controller, must be named | |
| after their hardware counterparts (SW|LDO)[1-4]. | |
| patternProperties: | |
| "^(sw[1-4]|ldo[24])$": | |
| type: object | |
| unevaluatedProperties: false | |
| $ref: regulator.yaml# | |
| description: | |
| Properties for single SW or LDO regulator. Regulators SW1..SW4 can | |
| regulate the feedback reference from 412.5mV to 800mV in 12.5 mV | |
| steps. The output voltage thus ranges between 0.4125 * (1 + R1/R2) V | |
| and 0.8 * (1 + R1/R2) V. | |
| Regulators LDO1, LDO2, LDO4 have a fixed 0.725 V reference and thus | |
| output 0.725 * (1 + R1/R2) V. | |
| The LDO1 standby regulator can not be disabled and thus should have | |
| the regulator-always-on property set. | |
| properties: | |
| lltc,fb-voltage-divider: | |
| description: | |
| An array of two integers containing the resistor values | |
| R1 and R2 of the feedback voltage divider in ohms. | |
| $ref: /schemas/types.yaml#/definitions/uint32-array | |
| minItems: 2 | |
| maxItems: 2 | |
| required: | |
| - lltc,fb-voltage-divider | |
| properties: | |
| ldo1: | |
| type: object | |
| unevaluatedProperties: false | |
| $ref: regulator.yaml# | |
| description: | |
| The LDO1 standby regulator can not be disabled and thus should | |
| have the regulator-always-on property set. See patternProperties | |
| description above for the rest of the details. | |
| properties: | |
| lltc,fb-voltage-divider: | |
| description: | |
| An array of two integers containing the resistor values | |
| R1 and R2 of the feedback voltage divider in ohms. | |
| $ref: /schemas/types.yaml#/definitions/uint32-array | |
| minItems: 2 | |
| maxItems: 2 | |
| required: | |
| - lltc,fb-voltage-divider | |
| - regulator-always-on | |
| ldo3: | |
| type: object | |
| unevaluatedProperties: false | |
| $ref: regulator.yaml# | |
| description: | |
| The LDO3 regulator is fixed to 1.8 V. See patternProperties | |
| description above for the rest of the details. | |
| required: | |
| - compatible | |
| - reg | |
| - regulators | |
| additionalProperties: false | |
| examples: | |
| - | | |
| i2c { | |
| #address-cells = <1>; | |
| #size-cells = <0>; | |
| pmic@3c { | |
| compatible = "lltc,ltc3676"; | |
| reg = <0x3c>; | |
| regulators { | |
| sw1_reg: sw1 { | |
| regulator-min-microvolt = <674400>; | |
| regulator-max-microvolt = <1308000>; | |
| lltc,fb-voltage-divider = <127000 200000>; | |
| regulator-ramp-delay = <7000>; | |
| regulator-boot-on; | |
| regulator-always-on; | |
| }; | |
| sw2_reg: sw2 { | |
| regulator-min-microvolt = <1033310>; | |
| regulator-max-microvolt = <200400>; | |
| lltc,fb-voltage-divider = <301000 200000>; | |
| regulator-ramp-delay = <7000>; | |
| regulator-boot-on; | |
| regulator-always-on; | |
| }; | |
| sw3_reg: sw3 { | |
| regulator-min-microvolt = <674400>; | |
| regulator-max-microvolt = <130800>; | |
| lltc,fb-voltage-divider = <127000 200000>; | |
| regulator-ramp-delay = <7000>; | |
| regulator-boot-on; | |
| regulator-always-on; | |
| }; | |
| sw4_reg: sw4 { | |
| regulator-min-microvolt = <868310>; | |
| regulator-max-microvolt = <168400>; | |
| lltc,fb-voltage-divider = <221000 200000>; | |
| regulator-ramp-delay = <7000>; | |
| regulator-boot-on; | |
| regulator-always-on; | |
| }; | |
| ldo2_reg: ldo2 { | |
| regulator-min-microvolt = <2490375>; | |
| regulator-max-microvolt = <2490375>; | |
| lltc,fb-voltage-divider = <487000 200000>; | |
| regulator-boot-on; | |
| regulator-always-on; | |
| }; | |
| ldo3_reg: ldo3 { | |
| regulator-min-microvolt = <1800000>; | |
| regulator-max-microvolt = <1800000>; | |
| regulator-boot-on; | |
| }; | |
| ldo4_reg: ldo4 { | |
| regulator-min-microvolt = <3023250>; | |
| regulator-max-microvolt = <3023250>; | |
| lltc,fb-voltage-divider = <634000 200000>; | |
| regulator-boot-on; | |
| regulator-always-on; | |
| }; | |
| }; | |
| }; | |
| }; |