92 lines
2.3 KiB
YAML
92 lines
2.3 KiB
YAML
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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# Copyright (C) 2020 Texas Instruments Incorporated
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/power/supply/bq2515x.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: TI bq2515x 500-mA Linear charger family
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maintainers:
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- Andrew Davis <afd@ti.com>
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description: |
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The BQ2515x family is a highly integrated battery charge management IC that
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integrates the most common functions for wearable devices, namely a charger,
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an output voltage rail, ADC for battery and system monitoring, and
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push-button controller.
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Specifications about the charger can be found at:
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http://www.ti.com/lit/ds/symlink/bq25150.pdf
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http://www.ti.com/lit/ds/symlink/bq25155.pdf
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properties:
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compatible:
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enum:
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- ti,bq25150
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- ti,bq25155
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reg:
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maxItems: 1
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description: I2C address of the charger.
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ac-detect-gpios:
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description: |
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GPIO used for connecting the bq2515x device PG (AC Detect)
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pin.
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maxItems: 1
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reset-gpios:
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description: GPIO used for hardware reset.
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maxItems: 1
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powerdown-gpios:
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description: GPIO used for low power mode of IC.
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maxItems: 1
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charge-enable-gpios:
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description: GPIO used to turn on and off charging.
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maxItems: 1
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input-current-limit-microamp:
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description: Maximum input current in micro Amps.
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minimum: 50000
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maximum: 500000
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monitored-battery:
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$ref: /schemas/types.yaml#/definitions/phandle
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description: phandle to the battery node being monitored
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required:
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- compatible
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- reg
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- monitored-battery
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additionalProperties: false
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examples:
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- |
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bat: battery {
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compatible = "simple-battery";
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constant-charge-current-max-microamp = <50000>;
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precharge-current-microamp = <2500>;
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constant-charge-voltage-max-microvolt = <4000000>;
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};
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#include <dt-bindings/gpio/gpio.h>
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i2c0 {
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#address-cells = <1>;
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#size-cells = <0>;
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bq25150: charger@6b {
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compatible = "ti,bq25150";
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reg = <0x6b>;
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monitored-battery = <&bat>;
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input-current-limit-microamp = <100000>;
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ac-detect-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
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reset-gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
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powerdown-gpios = <&gpio0 15 GPIO_ACTIVE_HIGH>;
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charge-enable-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
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};
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};
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