1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 # Copyright (C) 2020 Texas Instruments Incorporated
3 %YAML 1.2
4 ---
5 $id: http://devicetree.org/schemas/power/supply/bq25980.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
7
8 title: TI BQ25980 Flash Charger
9
10 maintainers:
11 - Andrew Davis <afd@ti.com>
12
13 description: |
14 The BQ25980, BQ25975, and BQ25960 are a series of flash chargers intended
15 for use in high-power density portable electronics. These inductorless
16 switching chargers can provide over 97% efficiency by making use of the
17 switched capacitor architecture.
18
19 allOf:
20 - $ref: power-supply.yaml#
21
22 properties:
23 compatible:
24 enum:
25 - ti,bq25980
26 - ti,bq25975
27 - ti,bq25960
28
29 reg:
30 maxItems: 1
31
32 ti,watchdog-timeout-ms:
33 description: |
34 Watchdog timer in milli seconds. 0 disables the watchdog.
35 default: 0
36 minimum: 0
37 maximum: 300000
38 enum: [ 0, 5000, 10000, 50000, 300000]
39
40 ti,sc-ovp-limit-microvolt:
41 description: |
42 Minimum input voltage limit in micro volts with a when the charger is in
43 switch cap mode. 100000 micro volt step.
44 default: 17800000
45 minimum: 14000000
46 maximum: 22000000
47
48 ti,sc-ocp-limit-microamp:
49 description: |
50 Maximum input current limit in micro amps with a 100000 micro amp step.
51 minimum: 100000
52 maximum: 3300000
53
54 ti,bypass-ovp-limit-microvolt:
55 description: |
56 Minimum input voltage limit in micro volts with a when the charger is in
57 switch cap mode. 50000 micro volt step.
58 minimum: 7000000
59 maximum: 12750000
60
61 ti,bypass-ocp-limit-microamp:
62 description: |
63 Maximum input current limit in micro amps with a 100000 micro amp step.
64 minimum: 100000
65 maximum: 3300000
66
67 ti,bypass-enable:
68 type: boolean
69 description: Enables bypass mode at boot time
70
71 interrupts:
72 maxItems: 1
73 description: |
74 Indicates that the device state has changed.
75
76 monitored-battery:
77 $ref: /schemas/types.yaml#/definitions/phandle
78 description: phandle to the battery node being monitored
79
80 required:
81 - compatible
82 - reg
83 - monitored-battery
84
85 unevaluatedProperties: false
86
87 examples:
88 - |
89 bat: battery {
90 compatible = "simple-battery";
91 constant-charge-current-max-microamp = <4000000>;
92 constant-charge-voltage-max-microvolt = <8400000>;
93 precharge-current-microamp = <160000>;
94 charge-term-current-microamp = <160000>;
95 };
96 #include <dt-bindings/gpio/gpio.h>
97 #include <dt-bindings/interrupt-controller/irq.h>
98 i2c {
99 #address-cells = <1>;
100 #size-cells = <0>;
101
102 bq25980: charger@65 {
103 compatible = "ti,bq25980";
104 reg = <0x65>;
105 interrupt-parent = <&gpio1>;
106 interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
107 ti,watchdog-timeout-ms = <0>;
108 ti,sc-ocp-limit-microamp = <2000000>;
109 ti,sc-ovp-limit-microvolt = <17800000>;
110 monitored-battery = <&bat>;
111 };
112 };
113
114 ...
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