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