blob: 75a56773be4a0a364909feff196b2e81dc6288e6 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
# Copyright (C) 2020 Texas Instruments Incorporated
%YAML 1.2
---
$id: "http://devicetree.org/schemas/power/supply/bq2515x.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: TI bq2515x 500-mA Linear charger family
maintainers:
- Dan Murphy <dmurphy@ti.com>
- Ricardo Rivera-Matos <r-rivera-matos@ti.com>
description: |
The BQ2515x family is a highly integrated battery charge management IC that
integrates the most common functions for wearable devices, namely a charger,
an output voltage rail, ADC for battery and system monitoring, and
push-button controller.
Specifications about the charger can be found at:
http://www.ti.com/lit/ds/symlink/bq25150.pdf
http://www.ti.com/lit/ds/symlink/bq25155.pdf
properties:
compatible:
enum:
- ti,bq25150
- ti,bq25155
reg:
maxItems: 1
description: I2C address of the charger.
ac-detect-gpios:
description: |
GPIO used for connecting the bq2515x device PG (AC Detect)
pin.
maxItems: 1
reset-gpios:
description: GPIO used for hardware reset.
maxItems: 1
powerdown-gpios:
description: GPIO used for low power mode of IC.
maxItems: 1
charge-enable-gpios:
description: GPIO used to turn on and off charging.
maxItems: 1
input-current-limit-microamp:
$ref: /schemas/types.yaml#/definitions/uint32
description: Maximum input current in micro Amps.
minimum: 50000
maximum: 500000
monitored-battery:
$ref: /schemas/types.yaml#/definitions/phandle
description: phandle to the battery node being monitored
required:
- compatible
- reg
- monitored-battery
additionalProperties: false
examples:
- |
bat: battery {
compatible = "simple-battery";
constant-charge-current-max-microamp = <50000>;
precharge-current-microamp = <2500>;
constant-charge-voltage-max-microvolt = <4000000>;
};
#include <dt-bindings/gpio/gpio.h>
i2c0 {
#address-cells = <1>;
#size-cells = <0>;
bq25150: charger@6b {
compatible = "ti,bq25150";
reg = <0x6b>;
monitored-battery = <&bat>;
input-current-limit-microamp = <100000>;
ac-detect-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
reset-gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
powerdown-gpios = <&gpio0 15 GPIO_ACTIVE_HIGH>;
charge-enable-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
};
};
|
