# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/regulator/nxp,pca9450-regulator.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: NXP PCA9450A/B/C Power Management Integrated Circuit regulators
maintainers:
- Robin Gong <yibin.gong@nxp.com>
description: |
Regulator nodes should be named to BUCK_<number> and LDO_<number>. The
definition for each of these nodes is defined using the standard
binding for regulators at
Documentation/devicetree/bindings/regulator/regulator.txt.
Datasheet is available at
https://www.nxp.com/docs/en/data-sheet/PCA9450DS.pdf
Support PF9453, Datasheet is available at
https://www.nxp.com/docs/en/data-sheet/PF9453_SDS.pdf
# The valid names for PCA9450 regulator nodes are:
# BUCK1, BUCK2, BUCK3, BUCK4, BUCK5, BUCK6,
# LDO1, LDO2, LDO3, LDO4, LDO5
# Note: Buck3 removed on PCA9450B and connect with Buck1 on PCA9450C.
properties:
compatible:
enum:
- nxp,pca9450a
- nxp,pca9450b
- nxp,pca9450c
- nxp,pca9451a
- nxp,pca9452
- nxp,pf9453
reg:
maxItems: 1
interrupts:
maxItems: 1
inl1-supply:
description: Regulator supply for the INL1 pin group, powering LDOx
inb13-supply:
description:
Regulator supply for the INB13 pin group, powering BUCK1 and BUCK3.
inb26-supply:
description:
Regulator supply for the INB26 pin group, powering BUCK2 and BUCK6.
inb45-supply:
description:
Regulator supply for the INB45 pin group, powering BUCK4 and BUCK5.
regulators:
type: object
description: |
list of regulators provided by this controller
properties:
LDO5:
type: object
$ref: regulator.yaml#
description:
Properties for single LDO5 regulator.
properties:
nxp,sd-vsel-fixed-low:
type: boolean
description:
Let the driver know that SD_VSEL is hardwired to low level and
there is no GPIO to get the actual value from.
sd-vsel-gpios:
description:
GPIO that can be used to read the current status of the SD_VSEL
signal in order for the driver to know if LDO5CTRL_L or LDO5CTRL_H
is used by the hardware.
unevaluatedProperties: false
patternProperties:
"^LDO([1-4]|-SNVS)$":
type: object
$ref: regulator.yaml#
description:
Properties for single LDO regulator.
unevaluatedProperties: false
"^BUCK[1-6]$":
type: object
$ref: regulator.yaml#
description:
Properties for single BUCK regulator.
properties:
nxp,dvs-run-voltage:
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 600000
maximum: 2187500
description:
PMIC default "RUN" state voltage in uV. Only Buck1~3 have such
dvs(dynamic voltage scaling) property.
nxp,dvs-standby-voltage:
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 600000
maximum: 2187500
description:
PMIC default "STANDBY" state voltage in uV. Only Buck1~3 have such
dvs(dynamic voltage scaling) property.
regulator-allowed-modes:
description: |
Buck regulator operating modes allowed. Valid values below.
Users should use the macros from dt-bindings/regulator/nxp,pca9450-regulator.h
0 (PCA9450_BUCK_MODE_AUTO): Auto PFM/PWM mode
1 (PCA9450_BUCK_MODE_FORCE_PWM): Forced PWM mode
items:
enum: [ 0, 1 ]
unevaluatedProperties: false
additionalProperties: false
nxp,i2c-lt-enable:
type: boolean
description:
Indicates that the I2C Level Translator is used.
nxp,wdog_b-warm-reset:
type: boolean
description:
When WDOG_B signal is asserted a warm reset will be done instead of cold
reset.
nxp,pmic-on-req-on-debounce-us:
enum: [ 120, 20000, 100000, 750000 ]
description: Debounce time for PMIC_ON_REQ high.
nxp,pmic-on-req-off-debounce-us:
enum: [ 120, 2000 ]
description: Debounce time for PMIC_ON_REQ is asserted low
nxp,power-on-step-ms:
enum: [ 1, 2, 4, 8]
description: Time step configuration during power on sequence
nxp,power-down-step-ms:
enum: [ 2, 4, 8, 16 ]
description: Time step configuration during power down sequence
nxp,restart-ms:
enum: [ 250, 500 ]
description: Time to stay off regulators during Cold reset
npx,pmic-rst-b-debounce-ms:
enum: [ 10, 50, 100, 500, 1000, 2000, 4000, 8000 ]
description: PMIC_RST_B debounce time
required:
- compatible
- reg
- regulators
additionalProperties: false
allOf:
- if:
properties:
compatible:
contains:
const: nxp,pf9453
then:
properties:
regulators:
patternProperties:
"^LDO[3-4]$": false
"^BUCK[5-6]$": false
else:
properties:
regulators:
properties:
LDO-SNVS: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/regulator/nxp,pca9450-regulator.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
pmic: pmic@25 {
compatible = "nxp,pca9450b";
reg = <0x25>;
pinctrl-0 = <&pinctrl_pmic>;
interrupt-parent = <&gpio1>;
interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
regulators {
buck1: BUCK1 {
regulator-name = "BUCK1";
regulator-min-microvolt = <600000>;
regulator-max-microvolt = <2187500>;
regulator-boot-on;
regulator-always-on;
regulator-ramp-delay = <3125>;
};
buck2: BUCK2 {
regulator-name = "BUCK2";
regulator-min-microvolt = <600000>;
regulator-max-microvolt = <2187500>;
regulator-boot-on;
regulator-always-on;
regulator-ramp-delay = <3125>;
nxp,dvs-run-voltage = <950000>;
nxp,dvs-standby-voltage = <850000>;
};
buck4: BUCK4 {
regulator-name = "BUCK4";
regulator-min-microvolt = <600000>;
regulator-max-microvolt = <3400000>;
regulator-boot-on;
regulator-always-on;
regulator-initial-mode = <PCA9450_BUCK_MODE_FORCE_PWM>;
regulator-allowed-modes = <PCA9450_BUCK_MODE_FORCE_PWM>;
};
buck5: BUCK5 {
regulator-name = "BUCK5";
regulator-min-microvolt = <600000>;
regulator-max-microvolt = <3400000>;
regulator-boot-on;
regulator-always-on;
regulator-allowed-modes = <PCA9450_BUCK_MODE_AUTO
PCA9450_BUCK_MODE_FORCE_PWM>;
};
buck6: BUCK6 {
regulator-name = "BUCK6";
regulator-min-microvolt = <600000>;
regulator-max-microvolt = <3400000>;
regulator-boot-on;
regulator-always-on;
};
ldo1: LDO1 {
regulator-name = "LDO1";
regulator-min-microvolt = <1600000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
ldo2: LDO2 {
regulator-name = "LDO2";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1150000>;
regulator-boot-on;
regulator-always-on;
};
ldo3: LDO3 {
regulator-name = "LDO3";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
ldo4: LDO4 {
regulator-name = "LDO4";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
ldo5: LDO5 {
regulator-name = "LDO5";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
};
};
};
