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201 lines
6.4 KiB
201 lines
6.4 KiB
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause |
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%YAML 1.2 |
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--- |
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$id: http://devicetree.org/schemas/mfd/rohm,bd71815-pmic.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: ROHM BD71815 Power Management Integrated Circuit bindings |
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maintainers: |
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- Matti Vaittinen <[email protected]> |
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description: | |
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BD71815AGW is a single-chip power management ICs for battery-powered |
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portable devices. It integrates 5 buck converters, 8 LDOs, a boost driver |
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for LED and a 500 mA single-cell linear charger. Also included is a Coulomb |
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counter, a real-time clock (RTC), and a 32.768 kHz clock gate and two GPOs. |
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properties: |
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compatible: |
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const: rohm,bd71815 |
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reg: |
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description: |
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I2C slave address. |
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maxItems: 1 |
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interrupts: |
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maxItems: 1 |
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gpio-controller: true |
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"#gpio-cells": |
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const: 2 |
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description: | |
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The first cell is the pin number and the second cell is used to specify |
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flags. See ../gpio/gpio.txt for more information. |
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clocks: |
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maxItems: 1 |
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"#clock-cells": |
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const: 0 |
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clock-output-names: |
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const: bd71815-32k-out |
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rohm,clkout-open-drain: |
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description: clk32kout mode. Set to 1 for "open-drain" or 0 for "cmos". |
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$ref: "/schemas/types.yaml#/definitions/uint32" |
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minimum: 0 |
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maximum: 1 |
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rohm,charger-sense-resistor-ohms: |
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minimum: 10000000 |
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maximum: 50000000 |
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description: | |
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BD71827 and BD71828 have SAR ADC for measuring charging currents. |
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External sense resistor (RSENSE in data sheet) should be used. If |
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something other but 30MOhm resistor is used the resistance value |
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should be given here in Ohms. |
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default: 30000000 |
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regulators: |
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$ref: ../regulator/rohm,bd71815-regulator.yaml |
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description: |
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List of child nodes that specify the regulators. |
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gpio-reserved-ranges: |
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description: | |
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Usage of BD71828 GPIO pins can be changed via OTP. This property can be |
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used to mark the pins which should not be configured for GPIO. Please see |
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the ../gpio/gpio.txt for more information. |
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rohm,enable-hidden-gpo: |
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description: | |
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The BD71815 has undocumented GPO at pin E5. Pin is marked as GND at the |
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data-sheet as its location in the middle of GND pins makes it hard to |
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use on PCB. If your board has managed to use this pin you can enable the |
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second GPO by defining this property. Dont enable this if you are unsure |
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about how the E5 pin is connected on your board. |
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type: boolean |
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required: |
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- compatible |
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- reg |
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- interrupts |
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- clocks |
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- "#clock-cells" |
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- regulators |
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- gpio-controller |
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- "#gpio-cells" |
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additionalProperties: false |
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examples: |
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- | |
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#include <dt-bindings/interrupt-controller/irq.h> |
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#include <dt-bindings/leds/common.h> |
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i2c { |
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#address-cells = <1>; |
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#size-cells = <0>; |
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pmic: pmic@4b { |
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compatible = "rohm,bd71815"; |
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reg = <0x4b>; |
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interrupt-parent = <&gpio1>; |
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interrupts = <29 IRQ_TYPE_LEVEL_LOW>; |
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clocks = <&osc 0>; |
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#clock-cells = <0>; |
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clock-output-names = "bd71815-32k-out"; |
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gpio-controller; |
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#gpio-cells = <2>; |
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rohm,charger-sense-resistor-ohms = <10000000>; |
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regulators { |
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buck1: buck1 { |
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regulator-name = "buck1"; |
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regulator-min-microvolt = <800000>; |
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regulator-max-microvolt = <2000000>; |
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regulator-always-on; |
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regulator-ramp-delay = <1250>; |
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rohm,dvs-run-voltage = <1150000>; |
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rohm,dvs-suspend-voltage = <950000>; |
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}; |
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buck2: buck2 { |
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regulator-name = "buck2"; |
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regulator-min-microvolt = <800000>; |
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regulator-max-microvolt = <2000000>; |
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regulator-always-on; |
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regulator-ramp-delay = <1250>; |
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rohm,dvs-run-voltage = <1150000>; |
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rohm,dvs-suspend-voltage = <950000>; |
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}; |
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buck3: buck3 { |
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regulator-name = "buck3"; |
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regulator-min-microvolt = <1200000>; |
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regulator-max-microvolt = <2700000>; |
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regulator-always-on; |
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}; |
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buck4: buck4 { |
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regulator-name = "buck4"; |
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regulator-min-microvolt = <1100000>; |
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regulator-max-microvolt = <1850000>; |
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regulator-always-on; |
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}; |
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buck5: buck5 { |
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regulator-name = "buck5"; |
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regulator-min-microvolt = <1800000>; |
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regulator-max-microvolt = <3300000>; |
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regulator-always-on; |
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}; |
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ldo1: ldo1 { |
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regulator-name = "ldo1"; |
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regulator-min-microvolt = <800000>; |
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regulator-max-microvolt = <3300000>; |
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regulator-always-on; |
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}; |
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ldo2: ldo2 { |
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regulator-name = "ldo2"; |
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regulator-min-microvolt = <800000>; |
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regulator-max-microvolt = <3300000>; |
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regulator-always-on; |
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}; |
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ldo3: ldo3 { |
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regulator-name = "ldo3"; |
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regulator-min-microvolt = <800000>; |
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regulator-max-microvolt = <3300000>; |
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regulator-always-on; |
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}; |
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ldo4: ldo4 { |
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regulator-name = "ldo4"; |
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regulator-min-microvolt = <800000>; |
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regulator-max-microvolt = <3300000>; |
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regulator-always-on; |
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}; |
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ldo5: ldo5 { |
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regulator-name = "ldo5"; |
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regulator-min-microvolt = <800000>; |
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regulator-max-microvolt = <3300000>; |
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regulator-always-on; |
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}; |
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ldo6: ldodvref { |
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regulator-name = "ldodvref"; |
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regulator-always-on; |
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}; |
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ldo7: ldolpsr { |
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regulator-name = "ldolpsr"; |
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regulator-always-on; |
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}; |
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boost: wled { |
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regulator-name = "wled"; |
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regulator-min-microamp = <10>; |
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regulator-max-microamp = <25000>; |
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}; |
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}; |
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}; |
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};
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