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dt-bindings: regulator: add PF0900 regulator yaml

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Add device binding doc for PF0900 PMIC driver.

Can not get the I2C_CRC_EN config by reading register. If the PMIC
OTP_I2C_CRC_EN is enable, need to add the nxp,i2c-crc-enable property.

Signed-off-by: Joy Zou <joy.zou@nxp.com>
Link: https://patch.msgid.link/20250731-b4-pf09-v2-v3-1-4c2659516582@nxp.com
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Joy Zou 2025-07-31 18:44:41 +08:00 committed by Mark Brown
parent 8f5ae30d69
commit 82f0907931
1 changed files with 163 additions and 0 deletions
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163
Documentation/devicetree/bindings/regulator/nxp,pf0900.yaml Normal file
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/regulator/nxp,pf0900.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: NXP PF0900 Power Management Integrated Circuit regulators
maintainers:
- Joy Zou <joy.zou@nxp.com>
description:
The PF0900 is a power management integrated circuit (PMIC) optimized
for high performance i.MX9x based applications. It features five high
efficiency buck converters, three linear and one vaon regulators. It
provides low quiescent current in Standby and low power off Modes.
properties:
compatible:
enum:
- nxp,pf0900
reg:
maxItems: 1
interrupts:
maxItems: 1
regulators:
type: object
additionalProperties: false
properties:
vaon:
type: object
$ref: regulator.yaml#
unevaluatedProperties: false
patternProperties:
"^ldo[1-3]$":
type: object
$ref: regulator.yaml#
unevaluatedProperties: false
"^sw[1-5]$":
type: object
$ref: regulator.yaml#
unevaluatedProperties: false
nxp,i2c-crc-enable:
type: boolean
description:
The CRC enabled during register read/write. Controlled by customer
unviewable fuse bits OTP_I2C_CRC_EN. Check chip part number.
required:
- compatible
- reg
- interrupts
- regulators
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
pmic@8 {
compatible = "nxp,pf0900";
reg = <0x08>;
interrupt-parent = <&pcal6524>;
interrupts = <89 IRQ_TYPE_LEVEL_LOW>;
nxp,i2c-crc-enable;
regulators {
vaon {
regulator-name = "VAON";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
sw1 {
regulator-name = "SW1";
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
regulator-ramp-delay = <1950>;
regulator-state-mem {
regulator-on-in-suspend;
regulator-suspend-max-microvolt = <650000>;
regulator-suspend-min-microvolt = <650000>;
};
};
sw2 {
regulator-name = "SW2";
regulator-min-microvolt = <300000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
regulator-ramp-delay = <1950>;
};
sw3 {
regulator-name = "SW3";
regulator-min-microvolt = <300000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
regulator-ramp-delay = <1950>;
};
sw4 {
regulator-name = "SW4";
regulator-min-microvolt = <300000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
regulator-ramp-delay = <1950>;
};
sw5 {
regulator-name = "SW5";
regulator-min-microvolt = <300000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
regulator-ramp-delay = <1950>;
};
ldo1 {
regulator-name = "LDO1";
regulator-min-microvolt = <750000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
ldo2 {
regulator-name = "LDO2";
regulator-min-microvolt = <650000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
ldo3 {
regulator-name = "LDO3";
regulator-min-microvolt = <650000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
};
};
};