1 # SPDX-License-Identifier: GPL-2.0
2 # Copyright (C) 2021 Sebastian Reichel
3 %YAML 1.2
4 ---
5 $id: http://devicetree.org/schemas/power/supply/bq24190.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
7
8 title: TI BQ2419x Li-Ion Battery Charger
9
10 maintainers:
11 - Sebastian Reichel <sre@kernel.org>
12
13 allOf:
14 - $ref: power-supply.yaml#
15
16 properties:
17 compatible:
18 enum:
19 - ti,bq24190
20 - ti,bq24192
21 - ti,bq24192i
22 - ti,bq24196
23 - ti,bq24296
24
25 reg:
26 maxItems: 1
27
28 interrupts:
29 maxItems: 1
30
31 usb-otg-vbus:
32 $ref: /schemas/regulator/regulator.yaml#
33 description: |
34 Regulator that is used to control the VBUS voltage direction for
35 either USB host mode or for charging on the OTG port
36
37 ti,system-minimum-microvolt:
38 description: |
39 when power is connected and the battery is below minimum system voltage,
40 the system will be regulated above this setting.
41
42 omit-battery-class:
43 type: boolean
44 description: |
45 If this property is set, the operating system does not try to create a
46 battery device.
47
48 monitored-battery:
49 $ref: /schemas/types.yaml#/definitions/phandle
50 description: |
51 phandle to a "simple-battery" compatible node.
52
53 This property must be a phandle to a node using the format described
54 in battery.yaml, with the following properties being required:
55 - precharge-current-microamp: maximum charge current during precharge phase
56 (typically 20% of battery capacity).
57 - charge-term-current-microamp: a charge cycle terminates when the battery voltage is
58 above recharge threshold, and the current is below this
59 setting (typically 10% of battery capacity).
60
61 required:
62 - compatible
63 - reg
64 - interrupts
65
66 additionalProperties: false
67
68 examples:
69 - |
70 #include <dt-bindings/gpio/gpio.h>
71 #include <dt-bindings/interrupt-controller/irq.h>
72
73 bat: battery {
74 compatible = "simple-battery";
75 precharge-current-microamp = <256000>;
76 charge-term-current-microamp = <128000>;
77 };
78
79 i2c {
80 #address-cells = <1>;
81 #size-cells = <0>;
82
83 charger@6a {
84 compatible = "ti,bq24190";
85 reg = <0x6a>;
86 interrupt-parent = <&gpiochip>;
87 interrupts = <10 IRQ_TYPE_EDGE_FALLING>;
88 monitored-battery = <&bat>;
89 ti,system-minimum-microvolt = <3200000>;
90
91 usb_otg_vbus: usb-otg-vbus { };
92 };
93 };
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