230 lines
7.2 KiB
YAML
230 lines
7.2 KiB
YAML
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/mfd/rohm,bd71847-pmic.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: ROHM BD71847 and BD71850 Power Management Integrated Circuit bindings
|
|
|
|
maintainers:
|
|
- Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
|
|
|
|
description: |
|
|
BD71847AMWV and BD71850MWV are programmable Power Management ICs for powering
|
|
single-core, dual-core, and quad-core SoCs such as NXP-i.MX 8M. It is
|
|
optimized for low BOM cost and compact solution footprint. BD71847MWV and
|
|
BD71850MWV integrate 6 Buck regulators and 6 LDOs.
|
|
Datasheets are available at
|
|
https://www.rohm.com/products/power-management/power-management-ic-for-system/industrial-consumer-applications/nxp-imx/bd71847amwv-product
|
|
https://www.rohm.com/products/power-management/power-management-ic-for-system/industrial-consumer-applications/nxp-imx/bd71850mwv-product
|
|
|
|
properties:
|
|
compatible:
|
|
enum:
|
|
- rohm,bd71847
|
|
- rohm,bd71850
|
|
|
|
reg:
|
|
description:
|
|
I2C slave address.
|
|
maxItems: 1
|
|
|
|
interrupts:
|
|
maxItems: 1
|
|
|
|
clocks:
|
|
maxItems: 1
|
|
|
|
"#clock-cells":
|
|
const: 0
|
|
|
|
clock-output-names:
|
|
maxItems: 1
|
|
|
|
# The BD71847 abd BD71850 support two different HW states as reset target
|
|
# states. States are called as SNVS and READY. At READY state all the PMIC
|
|
# power outputs go down and OTP is reload. At the SNVS state all other logic
|
|
# and external devices apart from the SNVS power domain are shut off. Please
|
|
# refer to NXP i.MX8 documentation for further information regarding SNVS
|
|
# state. When a reset is done via SNVS state the PMIC OTP data is not reload.
|
|
# This causes power outputs that have been under SW control to stay down when
|
|
# reset has switched power state to SNVS. If reset is done via READY state the
|
|
# power outputs will be returned to HW control by OTP loading. Thus the reset
|
|
# target state is set to READY by default. If SNVS state is used the boot
|
|
# crucial regulators must have the regulator-always-on and regulator-boot-on
|
|
# properties set in regulator node.
|
|
|
|
rohm,reset-snvs-powered:
|
|
description:
|
|
Transfer PMIC to SNVS state at reset.
|
|
type: boolean
|
|
|
|
# Configure the "short press" and "long press" timers for the power button.
|
|
# Values are rounded to what hardware supports
|
|
# Short-press:
|
|
# Shortest being 10ms, next 500ms and then multiple of 500ms up to 7,5s
|
|
# Long-press:
|
|
# Shortest being 10ms, next 1000ms and then multiple of 1000ms up to 15s
|
|
# If these properties are not present the existing # configuration (from
|
|
# bootloader or OTP) is not touched.
|
|
|
|
rohm,short-press-ms:
|
|
description:
|
|
Short press duration in milliseconds
|
|
enum:
|
|
- 10
|
|
- 500
|
|
- 1000
|
|
- 1500
|
|
- 2000
|
|
- 2500
|
|
- 3000
|
|
- 3500
|
|
- 4000
|
|
- 4500
|
|
- 5000
|
|
- 5500
|
|
- 6000
|
|
- 6500
|
|
- 7000
|
|
- 7500
|
|
|
|
rohm,long-press-ms:
|
|
description:
|
|
Long press duration in milliseconds
|
|
enum:
|
|
- 10
|
|
- 1000
|
|
- 2000
|
|
- 3000
|
|
- 4000
|
|
- 5000
|
|
- 6000
|
|
- 7000
|
|
- 8000
|
|
- 9000
|
|
- 10000
|
|
- 11000
|
|
- 12000
|
|
- 13000
|
|
- 14000
|
|
- 15000
|
|
|
|
regulators:
|
|
$ref: ../regulator/rohm,bd71847-regulator.yaml
|
|
description:
|
|
List of child nodes that specify the regulators.
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- interrupts
|
|
- regulators
|
|
|
|
additionalProperties: false
|
|
|
|
dependencies:
|
|
'#clock-cells': [clocks]
|
|
clocks: ['#clock-cells']
|
|
|
|
examples:
|
|
- |
|
|
#include <dt-bindings/interrupt-controller/irq.h>
|
|
#include <dt-bindings/leds/common.h>
|
|
|
|
i2c {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
pmic: pmic@4b {
|
|
compatible = "rohm,bd71847";
|
|
reg = <0x4b>;
|
|
interrupt-parent = <&gpio1>;
|
|
interrupts = <29 IRQ_TYPE_LEVEL_LOW>;
|
|
#clock-cells = <0>;
|
|
clocks = <&osc 0>;
|
|
rohm,reset-snvs-powered;
|
|
rohm,short-press-ms = <10>;
|
|
rohm,long-press-ms = <2000>;
|
|
|
|
regulators {
|
|
buck1: BUCK1 {
|
|
regulator-name = "buck1";
|
|
regulator-min-microvolt = <700000>;
|
|
regulator-max-microvolt = <1300000>;
|
|
regulator-boot-on;
|
|
regulator-always-on;
|
|
regulator-ramp-delay = <1250>;
|
|
rohm,dvs-run-voltage = <900000>;
|
|
rohm,dvs-idle-voltage = <850000>;
|
|
rohm,dvs-suspend-voltage = <800000>;
|
|
};
|
|
buck2: BUCK2 {
|
|
regulator-name = "buck2";
|
|
regulator-min-microvolt = <700000>;
|
|
regulator-max-microvolt = <1300000>;
|
|
regulator-boot-on;
|
|
regulator-always-on;
|
|
regulator-ramp-delay = <1250>;
|
|
rohm,dvs-run-voltage = <1000000>;
|
|
rohm,dvs-idle-voltage = <900000>;
|
|
};
|
|
buck3: BUCK3 {
|
|
regulator-name = "buck3";
|
|
regulator-min-microvolt = <550000>;
|
|
regulator-max-microvolt = <1350000>;
|
|
regulator-boot-on;
|
|
};
|
|
buck4: BUCK4 {
|
|
regulator-name = "buck4";
|
|
regulator-min-microvolt = <2600000>;
|
|
regulator-max-microvolt = <3300000>;
|
|
regulator-boot-on;
|
|
};
|
|
buck5: BUCK5 {
|
|
regulator-name = "buck5";
|
|
regulator-min-microvolt = <1605000>;
|
|
regulator-max-microvolt = <1995000>;
|
|
regulator-boot-on;
|
|
};
|
|
buck8: BUCK6 {
|
|
regulator-name = "buck6";
|
|
regulator-min-microvolt = <800000>;
|
|
regulator-max-microvolt = <1400000>;
|
|
};
|
|
|
|
ldo1: LDO1 {
|
|
regulator-name = "ldo1";
|
|
regulator-min-microvolt = <1600000>;
|
|
regulator-max-microvolt = <3300000>;
|
|
regulator-boot-on;
|
|
};
|
|
ldo2: LDO2 {
|
|
regulator-name = "ldo2";
|
|
regulator-min-microvolt = <800000>;
|
|
regulator-max-microvolt = <900000>;
|
|
regulator-boot-on;
|
|
};
|
|
ldo3: LDO3 {
|
|
regulator-name = "ldo3";
|
|
regulator-min-microvolt = <1800000>;
|
|
regulator-max-microvolt = <3300000>;
|
|
};
|
|
ldo4: LDO4 {
|
|
regulator-name = "ldo4";
|
|
regulator-min-microvolt = <900000>;
|
|
regulator-max-microvolt = <1800000>;
|
|
};
|
|
ldo5: LDO5 {
|
|
regulator-name = "ldo5";
|
|
regulator-min-microvolt = <800000>;
|
|
regulator-max-microvolt = <3300000>;
|
|
};
|
|
ldo6: LDO6 {
|
|
regulator-name = "ldo6";
|
|
regulator-min-microvolt = <900000>;
|
|
regulator-max-microvolt = <1800000>;
|
|
};
|
|
};
|
|
};
|
|
};
|