| # 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>; |
| }; |
| }; |
| }; |
| }; |
