# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id:
http://devicetree.org/schemas/mfd/rohm,bd9571mwv.yaml#
$schema:
http://devicetree.org/meta-schemas/core.yaml#
title: ROHM BD9571MWV/BD9574MWF Power Management Integrated Circuit (PMIC)
maintainers:
- Marek Vasut <marek.vasut@gmail.com>
properties:
compatible:
enum:
- rohm,bd9571mwv
- rohm,bd9574mwf
reg:
maxItems: 1
interrupts:
maxItems: 1
interrupt-controller: true
'#interrupt-cells':
const: 2
gpio-controller: true
'#gpio-cells':
const: 2
rohm,ddr-backup-power:
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0x0
maximum: 0xf
description: |
Value to use for DDR-Backup Power (default 0).
This is a bitmask that specifies which DDR power rails need to be kept
powered when backup mode is entered, for system suspend:
- bit 0: DDR0
- bit 1: DDR1
- bit 2: DDR0C
- bit 3: DDR1C
These bits match the KEEPON_DDR* bits in the documentation for the "BKUP
Mode Cnt" register.
rohm,rstbmode-level:
$ref: /schemas/types.yaml#/definitions/flag
description:
The RSTB signal is configured for level mode, to accommodate a toggle
power switch (the RSTBMODE pin is strapped low).
rohm,rstbmode-pulse:
$ref: /schemas/types.yaml#/definitions/flag
description:
The RSTB signal is configured for pulse mode, to accommodate a momentary
power switch (the RSTBMODE pin is strapped high).
regulators:
type: object
description:
List of child nodes that specify the regulator initialization data.
Child nodes must be named after their hardware counterparts.
patternProperties:
"^(vd09|vd18|vd25|vd33|dvfs)$":
type: object
$ref: /schemas/regulator/regulator.yaml#
properties:
regulator-name:
pattern: "^(vd09|vd18|vd25|vd33|dvfs)$"
unevaluatedProperties: false
additionalProperties: false
additionalProperties: false
required:
- compatible
- reg
- interrupts
- interrupt-controller
- '#interrupt-cells'
- gpio-controller
- '#gpio-cells'
oneOf:
- required:
- rohm,rstbmode-level
- required:
- rohm,rstbmode-pulse
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
pmic: pmic@30 {
compatible = "rohm,bd9571mwv";
reg = <0x30>;
interrupt-parent = <&gpio2>;
interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
interrupt-controller;
#interrupt-cells = <2>;
gpio-controller;
#gpio-cells = <2>;
rohm,ddr-backup-power = <0xf>;
rohm,rstbmode-pulse;
regulators {
dvfs: dvfs {
regulator-name = "dvfs";
regulator-min-microvolt = <750000>;
regulator-max-microvolt = <1030000>;
regulator-boot-on;
regulator-always-on;
};
};
};
};
