# 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
|
|
properties:
|
|
compatible:
|
oneOf:
|
- items:
|
- enum:
|
- 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
|
|
additionalProperties: 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;
|
};
|
};
|
