1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 # Copyright (C) 2021 Sebastian Reichel 2 # Copyright (C) 2021 Sebastian Reichel
3 %YAML 1.2 3 %YAML 1.2
4 --- 4 ---
5 $id: http://devicetree.org/schemas/power/suppl !! 5 $id: "http://devicetree.org/schemas/power/supply/bq2415x.yaml#"
6 $schema: http://devicetree.org/meta-schemas/co !! 6 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
7 7
8 title: TI bq2415x Li-Ion Charger !! 8 title: Binding for TI bq2415x Li-Ion Charger
9 9
10 maintainers: 10 maintainers:
11 - Sebastian Reichel <sre@kernel.org> 11 - Sebastian Reichel <sre@kernel.org>
12 12
13 allOf: 13 allOf:
14 - $ref: power-supply.yaml# 14 - $ref: power-supply.yaml#
15 15
16 properties: 16 properties:
17 compatible: 17 compatible:
18 enum: 18 enum:
19 - ti,bq24150 19 - ti,bq24150
>> 20 - ti,bq24150
20 - ti,bq24150a 21 - ti,bq24150a
21 - ti,bq24151 22 - ti,bq24151
22 - ti,bq24151a 23 - ti,bq24151a
23 - ti,bq24152 24 - ti,bq24152
24 - ti,bq24153 25 - ti,bq24153
25 - ti,bq24153a 26 - ti,bq24153a
26 - ti,bq24155 27 - ti,bq24155
27 - ti,bq24156 28 - ti,bq24156
28 - ti,bq24156a 29 - ti,bq24156a
29 - ti,bq24158 30 - ti,bq24158
30 31
31 reg: 32 reg:
32 maxItems: 1 33 maxItems: 1
33 34
34 ti,current-limit: 35 ti,current-limit:
35 $ref: /schemas/types.yaml#/definitions/uin 36 $ref: /schemas/types.yaml#/definitions/uint32
36 description: initial maximum current charg 37 description: initial maximum current charger can pull from power supply in mA.
37 38
38 ti,weak-battery-voltage: 39 ti,weak-battery-voltage:
39 $ref: /schemas/types.yaml#/definitions/uin 40 $ref: /schemas/types.yaml#/definitions/uint32
40 description: | 41 description: |
41 weak battery voltage threshold in mV. 42 weak battery voltage threshold in mV.
42 The chip will use slow precharge if batt 43 The chip will use slow precharge if battery voltage is below this value.
43 44
44 ti,battery-regulation-voltage: 45 ti,battery-regulation-voltage:
45 $ref: /schemas/types.yaml#/definitions/uin 46 $ref: /schemas/types.yaml#/definitions/uint32
46 description: maximum charging voltage in m 47 description: maximum charging voltage in mV.
47 48
48 ti,charge-current: 49 ti,charge-current:
49 $ref: /schemas/types.yaml#/definitions/uin 50 $ref: /schemas/types.yaml#/definitions/uint32
50 description: maximum charging current in m 51 description: maximum charging current in mA.
51 52
52 ti,termination-current: 53 ti,termination-current:
53 $ref: /schemas/types.yaml#/definitions/uin 54 $ref: /schemas/types.yaml#/definitions/uint32
54 description: | 55 description: |
55 charge will be terminated when current i 56 charge will be terminated when current in constant-voltage phase drops
56 below this value (in mA). 57 below this value (in mA).
57 58
58 ti,resistor-sense: 59 ti,resistor-sense:
59 $ref: /schemas/types.yaml#/definitions/uin 60 $ref: /schemas/types.yaml#/definitions/uint32
60 description: value of sensing resistor in 61 description: value of sensing resistor in milliohm.
61 62
62 ti,usb-charger-detection: 63 ti,usb-charger-detection:
63 $ref: /schemas/types.yaml#/definitions/pha 64 $ref: /schemas/types.yaml#/definitions/phandle
64 description: phandle to usb charger detect 65 description: phandle to usb charger detection device (required for auto mode)
65 66
66 required: 67 required:
67 - compatible 68 - compatible
68 - reg 69 - reg
69 - ti,current-limit 70 - ti,current-limit
70 - ti,weak-battery-voltage 71 - ti,weak-battery-voltage
71 - ti,battery-regulation-voltage 72 - ti,battery-regulation-voltage
72 - ti,charge-current 73 - ti,charge-current
73 - ti,termination-current 74 - ti,termination-current
74 - ti,resistor-sense 75 - ti,resistor-sense
75 76
76 additionalProperties: false 77 additionalProperties: false
77 78
78 examples: 79 examples:
79 - | 80 - |
80 i2c { !! 81 i2c0 {
81 #address-cells = <1>; 82 #address-cells = <1>;
82 #size-cells = <0>; 83 #size-cells = <0>;
83 84
84 charger@6b { 85 charger@6b {
85 compatible = "ti,bq24150a"; 86 compatible = "ti,bq24150a";
86 reg = <0x6b>; 87 reg = <0x6b>;
87 88
88 ti,current-limit = <100>; 89 ti,current-limit = <100>;
89 ti,weak-battery-voltage = <3400>; 90 ti,weak-battery-voltage = <3400>;
90 ti,battery-regulation-voltage = <4200> 91 ti,battery-regulation-voltage = <4200>;
91 ti,charge-current = <650>; 92 ti,charge-current = <650>;
92 ti,termination-current = <100>; 93 ti,termination-current = <100>;
93 ti,resistor-sense = <68>; 94 ti,resistor-sense = <68>;
94 95
95 ti,usb-charger-detection = <&isp1704>; 96 ti,usb-charger-detection = <&isp1704>;
96 }; 97 };
97 }; 98 };
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