1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/power/supply/ti,lp8727.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: TI/National Semiconductor LP8727 Charger
8
9 maintainers:
10 - Sebastian Reichel <sre@kernel.org>
11
12 allOf:
13 - $ref: power-supply.yaml#
14
15 properties:
16 compatible:
17 const: ti,lp8727
18
19 reg:
20 const: 0x27
21
22 interrupts:
23 maxItems: 1
24
25 debounce-ms:
26 description: interrupt debounce time in ms
27
28 patternProperties:
29 '^(ac|usb)$':
30 type: object
31 additionalProperties: false
32 description: USB/AC charging parameters
33 properties:
34 charger-type:
35 enum:
36 - ac
37 - usb
38
39 eoc-level:
40 $ref: /schemas/types.yaml#/definitions/uint8
41 minimum: 0
42 maximum: 6
43 description: |
44 End of Charge Percentage with the following mapping:
45 0 = 5%, 1 = 10%, 2 = 16%, 3 = 20%, 4 = 25%, 5 = 33%, 6 = 50%
46
47 charging-current:
48 $ref: /schemas/types.yaml#/definitions/uint8
49 minimum: 0
50 maximum: 9
51 description: |
52 Charging current with the following mapping:
53 0 = 90mA, 1 = 100mA, 2 = 400mA, 3 = 450mA, 4 = 500mA, 5 = 600mA,
54 6 = 700mA, 7 = 800mA, 8 = 900mA, 9 = 1000mA
55
56 required:
57 - compatible
58 - reg
59
60 additionalProperties: false
61
62 examples:
63 - |
64 #include <dt-bindings/interrupt-controller/irq.h>
65 i2c {
66 #address-cells = <1>;
67 #size-cells = <0>;
68
69 lp8727: charger@27 {
70 compatible = "ti,lp8727";
71 reg = <0x27>;
72 interrupt-parent = <&gpio5>;
73 interrupts = <6 IRQ_TYPE_EDGE_FALLING>;
74 debounce-ms = <300>;
75
76 /* AC charger: 5% EOC and 500mA charging current */
77 ac {
78 charger-type = "ac";
79 eoc-level = /bits/ 8 <0>;
80 charging-current = /bits/ 8 <4>;
81 };
82
83 /* USB charger: 10% EOC and 400mA charging current */
84 usb {
85 charger-type = "usb";
86 eoc-level = /bits/ 8 <1>;
87 charging-current = /bits/ 8 <2>;
88 };
89 };
90 };
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