mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-08-31 22:23:05 +00:00
6856edf7ea
The sense resistor used for measuring currents is typically some tens of
milli Ohms. It has accidentally been documented to be tens of mega Ohms.
Fix the size of this resistor and a few copy-paste errors while at it.
Drop the unsuitable 'rohm,charger-sense-resistor-ohms' property (which
can't represent resistors smaller than one Ohm), and introduce a new
'rohm,charger-sense-resistor-micro-ohms' property with appropriate
minimum, maximum and default values instead.
Fixes: 4238dc1e64 ("dt_bindings: mfd: Add ROHM BD71815 PMIC")
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/0efd8e9de0ae8d62ee4c6b78cc565b04007a245d.1731430700.git.mazziesaccount@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
202 lines
6.4 KiB
YAML
202 lines
6.4 KiB
YAML
# 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-micro-ohms:
|
|
minimum: 10000
|
|
maximum: 50000
|
|
description: |
|
|
BD71815 has SAR ADC for measuring charging currents. External sense
|
|
resistor (RSENSE in data sheet) should be used. If something other
|
|
but a 30 mOhm resistor is used the resistance value should be given
|
|
here in micro Ohms.
|
|
default: 30000
|
|
|
|
regulators:
|
|
$ref: /schemas/regulator/rohm,bd71815-regulator.yaml
|
|
description:
|
|
List of child nodes that specify the regulators.
|
|
|
|
gpio-reserved-ranges:
|
|
description: |
|
|
Usage of BD71815 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-micro-ohms = <10000>;
|
|
|
|
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>;
|
|
};
|
|
};
|
|
};
|
|
};
|