| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/mfd/ams,as3711.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Austria MicroSystems AS3711 Quad Buck High Current PMIC with Charger |
| |
| maintainers: |
| - Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com> |
| |
| description: |
| AS3711 is an I2C PMIC from Austria MicroSystems with multiple DC/DC and LDO |
| power supplies, a battery charger and an RTC. So far only bindings for the |
| two step-up DC/DC converters are defined. |
| |
| properties: |
| compatible: |
| const: ams,as3711 |
| |
| reg: |
| maxItems: 1 |
| |
| backlight: |
| description: |
| Step-up converter configuration, to be used as a backlight source |
| type: object |
| additionalProperties: false |
| properties: |
| compatible: |
| const: ams,as3711-bl |
| |
| su1-dev: |
| description: Framebuffer phandle for the first step-up converter |
| $ref: /schemas/types.yaml#/definitions/phandle |
| |
| su1-max-uA: |
| description: Maximum current for the first step-up converter |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| |
| su2-dev: |
| description: Framebuffer phandle for the second step-up converter |
| $ref: /schemas/types.yaml#/definitions/phandle |
| |
| su2-max-uA: |
| description: Maximum current for the second step-up converter |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| |
| su2-feedback-voltage: |
| description: Second step-up converter uses voltage feedback |
| type: boolean |
| |
| su2-feedback-curr1: |
| description: |
| Second step-up converter uses CURR1 input for current feedback |
| type: boolean |
| |
| su2-feedback-curr2: |
| description: |
| Second step-up converter uses CURR2 input for current feedback |
| type: boolean |
| |
| su2-feedback-curr3: |
| description: |
| Second step-up converter uses CURR3 input for current feedback |
| type: boolean |
| |
| su2-feedback-curr-auto: |
| description: |
| Second step-up converter uses automatic current feedback selection |
| type: boolean |
| |
| su2-fbprot-lx-sd4: |
| description: |
| Second step-up converter uses LX_SD4 for over-voltage protection |
| type: boolean |
| |
| su2-fbprot-gpio2: |
| description: |
| Second step-up converter uses GPIO2 for over-voltage protection |
| type: boolean |
| |
| su2-fbprot-gpio3: |
| description: |
| Second step-up converter uses GPIO3 for over-voltage protection |
| type: boolean |
| |
| su2-fbprot-gpio4: |
| description: |
| Second step-up converter uses GPIO4 for over-voltage protection |
| type: boolean |
| |
| su2-auto-curr1: |
| description: |
| Second step-up converter uses CURR1 input for automatic current |
| feedback |
| type: boolean |
| |
| su2-auto-curr2: |
| description: |
| Second step-up converter uses CURR2 input for automatic current |
| feedback |
| type: boolean |
| |
| su2-auto-curr3: |
| description: |
| Second step-up converter uses CURR3 input for automatic current |
| feedback |
| type: boolean |
| |
| required: |
| - compatible |
| |
| dependentRequired: |
| # To use the SU1 converter as a backlight source the following two |
| # properties must be provided: |
| su1-dev: [ su1-max-uA ] |
| su1-max-uA: [ su1-dev ] |
| |
| # To use the SU2 converter as a backlight source the following two |
| # properties must be provided: |
| su2-dev: [ su2-max-uA ] |
| su2-max-uA: [ su2-dev ] |
| |
| su2-feedback-voltage: [ su2-dev ] |
| su2-feedback-curr1: [ su2-dev ] |
| su2-feedback-curr2: [ su2-dev ] |
| su2-feedback-curr3: [ su2-dev ] |
| su2-feedback-curr-auto: [ su2-dev ] |
| su2-fbprot-lx-sd4: [ su2-dev ] |
| su2-fbprot-gpio2: [ su2-dev ] |
| su2-fbprot-gpio3: [ su2-dev ] |
| su2-fbprot-gpio4: [ su2-dev ] |
| su2-auto-curr1: [ su2-feedback-curr-auto ] |
| su2-auto-curr2: [ su2-feedback-curr-auto ] |
| su2-auto-curr3: [ su2-feedback-curr-auto ] |
| |
| dependentSchemas: |
| su2-dev: |
| allOf: |
| - oneOf: |
| - required: |
| - su2-feedback-voltage |
| - required: |
| - su2-feedback-curr1 |
| - required: |
| - su2-feedback-curr2 |
| - required: |
| - su2-feedback-curr3 |
| - required: |
| - su2-feedback-curr-auto |
| - oneOf: |
| - required: |
| - su2-fbprot-lx-sd4 |
| - required: |
| - su2-fbprot-gpio2 |
| - required: |
| - su2-fbprot-gpio3 |
| - required: |
| - su2-fbprot-gpio4 |
| |
| su2-feedback-curr-auto: |
| anyOf: |
| - required: |
| - su2-auto-curr1 |
| - required: |
| - su2-auto-curr2 |
| - required: |
| - su2-auto-curr3 |
| |
| regulators: |
| description: Other DC/DC and LDO supplies |
| type: object |
| unevaluatedProperties: false |
| patternProperties: |
| "^(sd[1-4]|ldo[1-8])$": |
| type: object |
| $ref: /schemas/regulator/regulator.yaml# |
| unevaluatedProperties: false |
| |
| required: |
| - compatible |
| - reg |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| i2c { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| pmic@40 { |
| compatible = "ams,as3711"; |
| reg = <0x40>; |
| |
| regulators { |
| sd4 { |
| regulator-name = "1.215V"; |
| regulator-min-microvolt = <1215000>; |
| regulator-max-microvolt = <1235000>; |
| }; |
| ldo2 { |
| regulator-name = "2.8V CPU"; |
| regulator-min-microvolt = <2800000>; |
| regulator-max-microvolt = <2800000>; |
| regulator-always-on; |
| regulator-boot-on; |
| }; |
| }; |
| |
| backlight { |
| compatible = "ams,as3711-bl"; |
| su2-dev = <&lcdc>; |
| su2-max-uA = <36000>; |
| su2-feedback-curr-auto; |
| su2-fbprot-gpio4; |
| su2-auto-curr1; |
| su2-auto-curr2; |
| su2-auto-curr3; |
| }; |
| }; |
| }; |
