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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/mfd/rohm,bd71815-pmic.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: ROHM BD71815 Power Management Integrated Circuit
maintainers:
- Matti Vaittinen <mazziesaccount@gmail.com>
description: |
BD71815AGW is a single-chip power management ICs for battery-powered
portable devices. It integrates 5 buck converters, 8 LDOs, a boost driver
for LED and a 500 mA single-cell linear charger. Also included is a Coulomb
counter, a real-time clock (RTC), and a 32.768 kHz clock gate and two GPOs.
properties:
compatible:
const: rohm,bd71815
reg:
description:
I2C slave address.
maxItems: 1
interrupts:
maxItems: 1
gpio-controller: true
"#gpio-cells":
const: 2
description: |
The first cell is the pin number and the second cell is used to specify
flags. See ../gpio/gpio.txt for more information.
clocks:
maxItems: 1
"#clock-cells":
const: 0
clock-output-names:
const: bd71815-32k-out
rohm,clkout-open-drain:
description: clk32kout mode. Set to 1 for "open-drain" or 0 for "cmos".
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 1
rohm,charger-sense-resistor-ohms:
minimum: 10000000
maximum: 50000000
description: |
BD71827 and BD71828 have SAR ADC for measuring charging currents.
External sense resistor (RSENSE in data sheet) should be used. If
something other but 30MOhm resistor is used the resistance value
should be given here in Ohms.
default: 30000000
regulators:
$ref: /schemas/regulator/rohm,bd71815-regulator.yaml
description:
List of child nodes that specify the regulators.
gpio-reserved-ranges:
description: |
Usage of BD71828 GPIO pins can be changed via OTP. This property can be
used to mark the pins which should not be configured for GPIO. Please see
the ../gpio/gpio.txt for more information.
rohm,enable-hidden-gpo:
description: |
The BD71815 has undocumented GPO at pin E5. Pin is marked as GND at the
data-sheet as its location in the middle of GND pins makes it hard to
use on PCB. If your board has managed to use this pin you can enable the
second GPO by defining this property. Dont enable this if you are unsure
about how the E5 pin is connected on your board.
type: boolean
required:
- compatible
- reg
- interrupts
- clocks
- "#clock-cells"
- regulators
- gpio-controller
- "#gpio-cells"
additionalProperties: false
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,bd71815";
reg = <0x4b>;
interrupt-parent = <&gpio1>;
interrupts = <29 IRQ_TYPE_LEVEL_LOW>;
clocks = <&osc 0>;
#clock-cells = <0>;
clock-output-names = "bd71815-32k-out";
gpio-controller;
#gpio-cells = <2>;
rohm,charger-sense-resistor-ohms = <10000000>;
regulators {
buck1: buck1 {
regulator-name = "buck1";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <2000000>;
regulator-always-on;
regulator-ramp-delay = <1250>;
rohm,dvs-run-voltage = <1150000>;
rohm,dvs-suspend-voltage = <950000>;
};
buck2: buck2 {
regulator-name = "buck2";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <2000000>;
regulator-always-on;
regulator-ramp-delay = <1250>;
rohm,dvs-run-voltage = <1150000>;
rohm,dvs-suspend-voltage = <950000>;
};
buck3: buck3 {
regulator-name = "buck3";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <2700000>;
regulator-always-on;
};
buck4: buck4 {
regulator-name = "buck4";
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1850000>;
regulator-always-on;
};
buck5: buck5 {
regulator-name = "buck5";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
ldo1: ldo1 {
regulator-name = "ldo1";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
ldo2: ldo2 {
regulator-name = "ldo2";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
ldo3: ldo3 {
regulator-name = "ldo3";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
ldo4: ldo4 {
regulator-name = "ldo4";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
ldo5: ldo5 {
regulator-name = "ldo5";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
ldo6: ldodvref {
regulator-name = "ldodvref";
regulator-always-on;
};
ldo7: ldolpsr {
regulator-name = "ldolpsr";
regulator-always-on;
};
boost: wled {
regulator-name = "wled";
regulator-min-microamp = <10>;
regulator-max-microamp = <25000>;
};
};
};
};
|
