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92 lines
2.4 KiB
92 lines
2.4 KiB
# 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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- Dan Murphy <[email protected]> |
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- Ricardo Rivera-Matos <[email protected]> |
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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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