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# SPDX-License-Identifier: GPL-2.0-only
%YAML 1.2
---
$id: http://devicetree.org/schemas/mfd/maxim,max77802.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Maxim MAX77802 Power Management IC
maintainers:
- Javier Martinez Canillas <javier@dowhile0.org>
- Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
description: |
This is a part of device tree bindings for Maxim MAX77802 Power Management
Integrated Circuit (PMIC).
The Maxim MAX77802 is a Power Management IC which includes voltage and
current regulators (10 high efficiency Buck regulators and 32 Low-DropOut
(LDO)), RTC and clock outputs.
The MAX77802 provides two 32.768khz clock outputs that can be controlled
(gated/ungated) over I2C. The clock IDs are defined as preprocessor macros
in dt-bindings/clock/maxim,max77802.h.
properties:
compatible:
const: maxim,max77802
'#clock-cells':
const: 1
interrupts:
maxItems: 1
reg:
maxItems: 1
regulators:
$ref: /schemas/regulator/maxim,max77802.yaml
description:
List of child nodes that specify the regulators.
inb1-supply:
description: Power supply for buck1
inb2-supply:
description: Power supply for buck2
inb3-supply:
description: Power supply for buck3
inb4-supply:
description: Power supply for buck4
inb5-supply:
description: Power supply for buck5
inb6-supply:
description: Power supply for buck6
inb7-supply:
description: Power supply for buck7
inb8-supply:
description: Power supply for buck8
inb9-supply:
description: Power supply for buck9
inb10-supply:
description: Power supply for buck10
inl1-supply:
description: Power supply for LDO8, LDO15
inl2-supply:
description: Power supply for LDO17, LDO27, LDO30, LDO35
inl3-supply:
description: Power supply for LDO3, LDO5, LDO7, LDO7
inl4-supply:
description: Power supply for LDO10, LDO11, LDO13, LDO14
inl5-supply:
description: Power supply for LDO9, LDO19
inl6-supply:
description: Power supply for LDO4, LDO21, LDO24, LDO33
inl7-supply:
description: Power supply for LDO18, LDO20, LDO28, LDO29
inl9-supply:
description: Power supply for LDO12, LDO23, LDO25, LDO26, LDO32, LDO34
inl10-supply:
description: Power supply for LDO1, LDO2
wakeup-source: true
required:
- compatible
- '#clock-cells'
- reg
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/regulator/maxim,max77802.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
pmic@9 {
compatible = "maxim,max77802";
interrupt-parent = <&gpx3>;
interrupts = <1 IRQ_TYPE_NONE>;
pinctrl-names = "default";
pinctrl-0 = <&max77802_irq>, <&pmic_selb>,
<&pmic_dvs_1>, <&pmic_dvs_2>, <&pmic_dvs_3>;
wakeup-source;
reg = <0x9>;
#clock-cells = <1>;
inb1-supply = <&tps65090_dcdc2>;
inb2-supply = <&tps65090_dcdc1>;
inb3-supply = <&tps65090_dcdc2>;
inb4-supply = <&tps65090_dcdc2>;
inb5-supply = <&tps65090_dcdc1>;
inb6-supply = <&tps65090_dcdc2>;
inb7-supply = <&tps65090_dcdc1>;
inb8-supply = <&tps65090_dcdc1>;
inb9-supply = <&tps65090_dcdc1>;
inb10-supply = <&tps65090_dcdc1>;
inl1-supply = <&buck5_reg>;
inl2-supply = <&buck7_reg>;
inl3-supply = <&buck9_reg>;
inl4-supply = <&buck9_reg>;
inl5-supply = <&buck9_reg>;
inl6-supply = <&tps65090_dcdc2>;
inl7-supply = <&buck9_reg>;
inl9-supply = <&tps65090_dcdc2>;
inl10-supply = <&buck7_reg>;
regulators {
BUCK1 {
regulator-name = "vdd_mif";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1300000>;
regulator-always-on;
regulator-boot-on;
regulator-ramp-delay = <12500>;
regulator-state-mem {
regulator-off-in-suspend;
};
};
BUCK2 {
regulator-name = "vdd_arm";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1500000>;
regulator-always-on;
regulator-boot-on;
regulator-ramp-delay = <12500>;
regulator-coupled-with = <&buck3_reg>;
regulator-coupled-max-spread = <300000>;
regulator-state-mem {
regulator-off-in-suspend;
};
};
// ...
BUCK10 {
regulator-name = "vdd_1v8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
regulator-boot-on;
regulator-state-mem {
regulator-on-in-suspend;
};
};
LDO1 {
regulator-name = "vdd_1v0";
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
regulator-initial-mode = <MAX77802_OPMODE_NORMAL>;
regulator-state-mem {
regulator-on-in-suspend;
regulator-mode = <MAX77802_OPMODE_LP>;
};
};
// ...
LDO35 {
regulator-name = "ldo_35";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
};
};
};
};
|
