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,bq24150a 20 - ti,bq24150a
21 - ti,bq24151 21 - ti,bq24151
22 - ti,bq24151a 22 - ti,bq24151a
23 - ti,bq24152 23 - ti,bq24152
24 - ti,bq24153 24 - ti,bq24153
25 - ti,bq24153a 25 - ti,bq24153a
26 - ti,bq24155 26 - ti,bq24155
27 - ti,bq24156 27 - ti,bq24156
28 - ti,bq24156a 28 - ti,bq24156a
29 - ti,bq24158 29 - ti,bq24158
30 30
31 reg: 31 reg:
32 maxItems: 1 32 maxItems: 1
33 33
34 ti,current-limit: 34 ti,current-limit:
35 $ref: /schemas/types.yaml#/definitions/uin 35 $ref: /schemas/types.yaml#/definitions/uint32
36 description: initial maximum current charg 36 description: initial maximum current charger can pull from power supply in mA.
37 37
38 ti,weak-battery-voltage: 38 ti,weak-battery-voltage:
39 $ref: /schemas/types.yaml#/definitions/uin 39 $ref: /schemas/types.yaml#/definitions/uint32
40 description: | 40 description: |
41 weak battery voltage threshold in mV. 41 weak battery voltage threshold in mV.
42 The chip will use slow precharge if batt 42 The chip will use slow precharge if battery voltage is below this value.
43 43
44 ti,battery-regulation-voltage: 44 ti,battery-regulation-voltage:
45 $ref: /schemas/types.yaml#/definitions/uin 45 $ref: /schemas/types.yaml#/definitions/uint32
46 description: maximum charging voltage in m 46 description: maximum charging voltage in mV.
47 47
48 ti,charge-current: 48 ti,charge-current:
49 $ref: /schemas/types.yaml#/definitions/uin 49 $ref: /schemas/types.yaml#/definitions/uint32
50 description: maximum charging current in m 50 description: maximum charging current in mA.
51 51
52 ti,termination-current: 52 ti,termination-current:
53 $ref: /schemas/types.yaml#/definitions/uin 53 $ref: /schemas/types.yaml#/definitions/uint32
54 description: | 54 description: |
55 charge will be terminated when current i 55 charge will be terminated when current in constant-voltage phase drops
56 below this value (in mA). 56 below this value (in mA).
57 57
58 ti,resistor-sense: 58 ti,resistor-sense:
59 $ref: /schemas/types.yaml#/definitions/uin 59 $ref: /schemas/types.yaml#/definitions/uint32
60 description: value of sensing resistor in 60 description: value of sensing resistor in milliohm.
61 61
62 ti,usb-charger-detection: 62 ti,usb-charger-detection:
63 $ref: /schemas/types.yaml#/definitions/pha 63 $ref: /schemas/types.yaml#/definitions/phandle
64 description: phandle to usb charger detect 64 description: phandle to usb charger detection device (required for auto mode)
65 65
66 required: 66 required:
67 - compatible 67 - compatible
68 - reg 68 - reg
69 - ti,current-limit 69 - ti,current-limit
70 - ti,weak-battery-voltage 70 - ti,weak-battery-voltage
71 - ti,battery-regulation-voltage 71 - ti,battery-regulation-voltage
72 - ti,charge-current 72 - ti,charge-current
73 - ti,termination-current 73 - ti,termination-current
74 - ti,resistor-sense 74 - ti,resistor-sense
75 75
76 additionalProperties: false 76 additionalProperties: false
77 77
78 examples: 78 examples:
79 - | 79 - |
80 i2c { !! 80 i2c0 {
81 #address-cells = <1>; 81 #address-cells = <1>;
82 #size-cells = <0>; 82 #size-cells = <0>;
83 83
84 charger@6b { 84 charger@6b {
85 compatible = "ti,bq24150a"; 85 compatible = "ti,bq24150a";
86 reg = <0x6b>; 86 reg = <0x6b>;
87 87
88 ti,current-limit = <100>; 88 ti,current-limit = <100>;
89 ti,weak-battery-voltage = <3400>; 89 ti,weak-battery-voltage = <3400>;
90 ti,battery-regulation-voltage = <4200> 90 ti,battery-regulation-voltage = <4200>;
91 ti,charge-current = <650>; 91 ti,charge-current = <650>;
92 ti,termination-current = <100>; 92 ti,termination-current = <100>;
93 ti,resistor-sense = <68>; 93 ti,resistor-sense = <68>;
94 94
95 ti,usb-charger-detection = <&isp1704>; 95 ti,usb-charger-detection = <&isp1704>;
96 }; 96 };
97 }; 97 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.