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Diffstat (limited to 'Documentation/devicetree/bindings/mfd/ams,as3711.yaml')
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diff --git a/Documentation/devicetree/bindings/mfd/ams,as3711.yaml b/Documentation/devicetree/bindings/mfd/ams,as3711.yaml new file mode 100644 index 000000000000..ad8649cbb2cc --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/ams,as3711.yaml @@ -0,0 +1,223 @@ +# 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; + }; + }; + }; |