mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-30 07:34:12 +08:00
dt_bindings: mfd: Add ROHM BD71815 PMIC
Document DT bindings for ROHM BD71815. BD71815 is a single-chip power management IC mainly for battery-powered portable devices. The IC integrates 5 bucks, 7 LDOs, a boost driver for LED, a battery charger with a Coulomb counter, a real-time clock, a 32kHz clock and two general-purpose outputs although only one is documented by the data-sheet. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Matti Vaittinen
Lee Jones
parent
5b3dc252be
commit
4238dc1e64
201
Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml
Normal file
201
Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml
Normal file
@ -0,0 +1,201 @@
|
||||
# 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 bindings
|
||||
|
||||
maintainers:
|
||||
- Matti Vaittinen <matti.vaittinen@fi.rohmeurope.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: ../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 it's 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>;
|
||||
};
|
||||
};
|
||||
};
|
||||
};
|
||||
Loading…
Reference in New Issue
Block a user