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/suppl
6 $schema: http://devicetree.org/meta-schemas/co
7
8 title: Bq24250, bq24251 and bq24257 Li-Ion Cha
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,bq24250
20 - ti,bq24251
21 - ti,bq24257
22
23 reg:
24 maxItems: 1
25
26 interrupts:
27 maxItems: 1
28
29 ti,battery-regulation-voltage:
30 $ref: /schemas/types.yaml#/definitions/uin
31 description: maximum charging voltage in u
32
33 ti,charge-current:
34 $ref: /schemas/types.yaml#/definitions/uin
35 description: maximum charging current in u
36
37 ti,termination-current:
38 $ref: /schemas/types.yaml#/definitions/uin
39 description: |
40 charge will be terminated when current i
41 drops below this value (in uA)
42
43 pg-gpios:
44 description: |
45 GPIO used for connecting the bq2425x dev
46 This pin is not available on all devices
47 possible as this is the recommended way
48 state. If this pin is not specified a so
49 detection is used.
50 maxItems: 1
51
52 ti,current-limit:
53 $ref: /schemas/types.yaml#/definitions/uin
54 description: |
55 The maximum current to be drawn from the
56 If this property is not specified, the i
57 automatically using USB D+/D- signal bas
58 If the hardware does not support the D+/
59 of 500,000 is used (=500mA) instead.
60
61 ti,ovp-voltage:
62 $ref: /schemas/types.yaml#/definitions/uin
63 description: |
64 Configures the over voltage protection v
65 If not specified a default of 6,5000,000
66
67 ti,in-dpm-voltage:
68 $ref: /schemas/types.yaml#/definitions/uin
69 description: |
70 Configures the threshold input voltage f
71 If not specified a default of 4,360,000
72
73 required:
74 - compatible
75 - reg
76 - interrupts
77 - ti,battery-regulation-voltage
78 - ti,charge-current
79 - ti,termination-current
80
81 additionalProperties: false
82
83 examples:
84 - |
85 #include <dt-bindings/gpio/gpio.h>
86 #include <dt-bindings/interrupt-controller
87 i2c {
88 #address-cells = <1>;
89 #size-cells = <0>;
90
91 charger@6a {
92 compatible = "ti,bq24257";
93 reg = <0x6a>;
94 interrupt-parent = <&gpio1>;
95 interrupts = <16 IRQ_TYPE_EDGE_BOTH>;
96
97 pg-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH
98
99 ti,battery-regulation-voltage = <42000
100 ti,charge-current = <1000000>;
101 ti,termination-current = <50000>;
102 };
103 };
104 - |
105 #include <dt-bindings/gpio/gpio.h>
106 #include <dt-bindings/interrupt-controller
107 i2c {
108 #address-cells = <1>;
109 #size-cells = <0>;
110
111 charger@6a {
112 compatible = "ti,bq24250";
113 reg = <0x6a>;
114 interrupt-parent = <&gpio1>;
115 interrupts = <16 IRQ_TYPE_EDGE_BOTH>;
116
117 ti,battery-regulation-voltage = <42000
118 ti,charge-current = <500000>;
119 ti,termination-current = <50000>;
120 ti,current-limit = <900000>;
121 ti,ovp-voltage = <9500000>;
122 ti,in-dpm-voltage = <4440000>;
123 };
124 };
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