325 lines
9.8 KiB
YAML
325 lines
9.8 KiB
YAML
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/mfd/maxim,max8998.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Maxim MAX8998, National/TI LP3974 Power Management IC
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maintainers:
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- Krzysztof Kozlowski <krzk@kernel.org>
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description:
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The Maxim MAX8998 is a Power Management IC which includes voltage/current
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regulators, real time clock, battery charging controller and several other
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sub-blocks. It is interfaced using an I2C interface. Each sub-block is
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addressed by the host system using different i2c slave address.
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properties:
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compatible:
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enum:
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- maxim,max8998
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- national,lp3974
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- ti,lp3974
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reg:
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maxItems: 1
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interrupts:
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minItems: 1
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items:
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- description: Main interrupt
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- description: Power-on/-off interrupt
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max8998,pmic-buck1-dvs-gpios:
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maxItems: 2
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description:
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Two host gpios used for buck1 DVS.
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max8998,pmic-buck2-dvs-gpio:
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maxItems: 1
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description:
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Host gpio used for buck2 DVS.
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max8998,pmic-buck1-default-dvs-idx:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1, 2, 3]
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default: 0
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description:
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Default voltage setting selected from the possible 4 options selectable
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by the DVS gpios.
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max8998,pmic-buck2-default-dvs-idx:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1]
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default: 0
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description:
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Default voltage setting selected from the possible 2 options selectable
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by the DVS GPIOs.
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max8998,pmic-buck-voltage-lock:
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type: boolean
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description:
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If present, disallows changing of preprogrammed buck DVS voltages.
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max8998,pmic-buck1-dvs-voltage:
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$ref: /schemas/types.yaml#/definitions/uint32-array
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maxItems: 4
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description:
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Four voltage values in microvolts for buck1 regulator that can be
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selected using DVS GPIO.
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max8998,pmic-buck2-dvs-voltage:
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$ref: /schemas/types.yaml#/definitions/uint32-array
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maxItems: 2
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description:
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Two voltage values in microvolts for buck2 regulator that can be
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selected using DVS GPIO.
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regulators:
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type: object
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additionalProperties: false
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properties:
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CHARGER:
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type: object
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$ref: /schemas/regulator/regulator.yaml#
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unevaluatedProperties: false
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description:
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CHARGER is main battery charger current control, wrongly represented
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as regulator.
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properties:
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regulator-min-microamp:
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minimum: 90000
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maximum: 800000
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regulator-max-microamp:
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minimum: 90000
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maximum: 800000
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regulator-min-microvolt: false
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regulator-max-microvolt: false
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required:
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- regulator-name
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patternProperties:
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"^(LDO([2-9]|1[0-7])|BUCK[1-4])$":
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type: object
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$ref: /schemas/regulator/regulator.yaml#
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unevaluatedProperties: false
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required:
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- regulator-name
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"^(EN32KHz-AP|EN32KHz-CP|ENVICHG|ESAFEOUT[12])$":
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type: object
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$ref: /schemas/regulator/regulator.yaml#
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unevaluatedProperties: false
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description: |
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EN32KHz-AP and EN32KHz-CP are 32768 Hz clocks, wrongly represented as
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regulators.
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ENVICHG is a Battery Charging Current Monitor Output.
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properties:
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regulator-min-microvolt: false
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regulator-max-microvolt: false
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required:
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- regulator-name
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dependencies:
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max8998,pmic-buck1-dvs-gpios: [ "max8998,pmic-buck1-dvs-voltage" ]
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max8998,pmic-buck2-dvs-gpio: [ "max8998,pmic-buck2-dvs-voltage" ]
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required:
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- compatible
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- reg
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- regulators
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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pmic@66 {
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compatible = "national,lp3974";
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reg = <0x66>;
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interrupts-extended = <&gpx0 7 IRQ_TYPE_LEVEL_LOW>,
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<&gpx2 7 IRQ_TYPE_LEVEL_LOW>;
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pinctrl-names = "default";
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pinctrl-0 = <&lp3974_irq>;
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max8998,pmic-buck1-default-dvs-idx = <0>;
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max8998,pmic-buck1-dvs-gpios = <&gpx0 5 GPIO_ACTIVE_HIGH>,
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<&gpx0 6 GPIO_ACTIVE_HIGH>;
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max8998,pmic-buck1-dvs-voltage = <1100000>, <1000000>,
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<1100000>, <1000000>;
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max8998,pmic-buck2-default-dvs-idx = <0>;
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max8998,pmic-buck2-dvs-gpio = <&gpe2 0 GPIO_ACTIVE_HIGH>;
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max8998,pmic-buck2-dvs-voltage = <1200000>, <1100000>;
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regulators {
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LDO2 {
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regulator-name = "VALIVE_1.2V";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <1200000>;
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regulator-always-on;
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};
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LDO3 {
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regulator-name = "VUSB+MIPI_1.1V";
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regulator-min-microvolt = <1100000>;
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regulator-max-microvolt = <1100000>;
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regulator-always-on;
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};
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LDO4 {
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regulator-name = "VADC_3.3V";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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};
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LDO5 {
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regulator-name = "VTF_2.8V";
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regulator-min-microvolt = <2800000>;
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regulator-max-microvolt = <2800000>;
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};
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LDO6 {
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regulator-name = "LDO6";
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regulator-min-microvolt = <2000000>;
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regulator-max-microvolt = <2000000>;
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};
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LDO7 {
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regulator-name = "VLCD+VMIPI_1.8V";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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};
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LDO8 {
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regulator-name = "VUSB+VDAC_3.3V";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-always-on;
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};
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LDO9 {
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regulator-name = "VCC_2.8V";
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regulator-min-microvolt = <2800000>;
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regulator-max-microvolt = <2800000>;
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regulator-always-on;
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};
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LDO10 {
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regulator-name = "VPLL_1.1V";
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regulator-min-microvolt = <1100000>;
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regulator-max-microvolt = <1100000>;
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regulator-boot-on;
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regulator-always-on;
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};
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LDO11 {
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regulator-name = "CAM_AF_3.3V";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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};
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LDO12 {
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regulator-name = "PS_2.8V";
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regulator-min-microvolt = <2800000>;
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regulator-max-microvolt = <2800000>;
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};
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LDO13 {
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regulator-name = "VHIC_1.2V";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <1200000>;
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};
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LDO14 {
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regulator-name = "CAM_I_HOST_1.8V";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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};
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LDO15 {
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regulator-name = "CAM_S_DIG+FM33_CORE_1.2V";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <1200000>;
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};
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LDO16 {
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regulator-name = "CAM_S_ANA_2.8V";
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regulator-min-microvolt = <2800000>;
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regulator-max-microvolt = <2800000>;
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};
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LDO17 {
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regulator-name = "VCC_3.0V_LCD";
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regulator-min-microvolt = <3000000>;
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regulator-max-microvolt = <3000000>;
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};
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BUCK1 {
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regulator-name = "VINT_1.1V";
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regulator-min-microvolt = <750000>;
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regulator-max-microvolt = <1500000>;
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regulator-boot-on;
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regulator-always-on;
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};
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BUCK2 {
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regulator-name = "VG3D_1.1V";
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regulator-min-microvolt = <750000>;
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regulator-max-microvolt = <1500000>;
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regulator-boot-on;
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};
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BUCK3 {
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regulator-name = "VCC_1.8V";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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regulator-always-on;
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};
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BUCK4 {
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regulator-name = "VMEM_1.2V";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <1200000>;
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regulator-always-on;
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};
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EN32KHz-AP {
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regulator-name = "32KHz AP";
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regulator-always-on;
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};
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EN32KHz-CP {
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regulator-name = "32KHz CP";
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};
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ENVICHG {
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regulator-name = "VICHG";
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};
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ESAFEOUT1 {
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regulator-name = "SAFEOUT1";
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};
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ESAFEOUT2 {
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regulator-name = "SAFEOUT2";
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regulator-boot-on;
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};
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};
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};
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};
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