85 lines
2.1 KiB
YAML
85 lines
2.1 KiB
YAML
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# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/power/supply/sbs,sbs-battery.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: SBS compliant battery
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maintainers:
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- Sebastian Reichel <sre@kernel.org>
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description: |
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Battery compatible with the smart battery system specifications
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allOf:
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- $ref: power-supply.yaml#
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properties:
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compatible:
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oneOf:
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- items:
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- enum:
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- ti,bq20z45
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- ti,bq20z65
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- ti,bq20z75
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- enum:
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- sbs,sbs-battery
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- items:
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- const: sbs,sbs-battery
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reg:
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maxItems: 1
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sbs,i2c-retry-count:
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description:
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The number of times to retry I2C transactions on I2C IO failure.
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default: 0
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$ref: /schemas/types.yaml#/definitions/uint32
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sbs,poll-retry-count:
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description:
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The number of times to try looking for new status after an external
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change notification.
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default: 0
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$ref: /schemas/types.yaml#/definitions/uint32
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sbs,battery-detect-gpios:
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description:
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GPIO which signals battery detection. If this is not supplied, the bus
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needs to be polled to detect the battery.
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maxItems: 1
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sbs,disable-charger-broadcasts:
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description:
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SBS batteries by default send broadcast messages to SBS compliant chargers to
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configure max. charge current/voltage. If your hardware does not have an SBS
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compliant charger it should be disabled via this property to avoid blocking
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the bus. Also some SBS battery fuel gauges are known to have a buggy multi-
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master implementation.
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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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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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battery@b {
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compatible = "ti,bq20z75", "sbs,sbs-battery";
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reg = <0xb>;
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sbs,i2c-retry-count = <2>;
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sbs,poll-retry-count = <10>;
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sbs,battery-detect-gpios = <&gpio 122 GPIO_ACTIVE_HIGH>;
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sbs,disable-charger-broadcasts;
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};
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};
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