1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/power/supply/qcom,pm8916-lbc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Qualcomm Linear Battery Charger
8
9 maintainers:
10 - Nikita Travkin <nikita@trvn.ru>
11
12 description:
13 Linear Battery Charger hardware block, found in some Qualcomm PMICs
14 such as pm8916. Implements a simple, autonomous CC/CV charger.
15
16 allOf:
17 - $ref: power-supply.yaml#
18
19 properties:
20 compatible:
21 const: qcom,pm8916-lbc
22
23 reg:
24 items:
25 - description: Charger
26 - description: Battery
27 - description: USB
28 - description: MISC
29
30 reg-names:
31 items:
32 - const: chgr
33 - const: bat_if
34 - const: usb
35 - const: misc
36
37 interrupts:
38 items:
39 - description: Battery detection
40 - description: Fast charging
41 - description: Charging failed
42 - description: Charging done
43 - description: Battery present
44 - description: Battery temperature OK
45 - description: USB coarse detection
46 - description: USB IN valid
47 - description: Charger gone
48 - description: Overtemperature
49
50 interrupt-names:
51 items:
52 - const: vbat_det
53 - const: fast_chg
54 - const: chg_fail
55 - const: chg_done
56 - const: bat_pres
57 - const: temp_ok
58 - const: coarse_det
59 - const: usb_vbus
60 - const: chg_gone
61 - const: overtemp
62
63 qcom,fast-charge-safe-voltage:
64 $ref: /schemas/types.yaml#/definitions/uint32
65 minimum: 4000000
66 maximum: 4775000
67 description:
68 Maximum safe battery voltage in uV; May be pre-set by bootloader,
69 in which case, setting this will harmlessly fail.
70
71 qcom,fast-charge-safe-current:
72 $ref: /schemas/types.yaml#/definitions/uint32
73 minimum: 90000
74 maximum: 1440000
75 description:
76 Maximum safe battery charge current in uA; May be pre-set by
77 bootloader, in which case setting this will harmlessly fail.
78
79 monitored-battery: true
80
81 required:
82 - compatible
83 - reg
84 - interrupts
85 - interrupt-names
86 - qcom,fast-charge-safe-voltage
87 - qcom,fast-charge-safe-current
88
89 additionalProperties: false
90
91 examples:
92 - |
93 #include <dt-bindings/interrupt-controller/irq.h>
94 pmic {
95 #address-cells = <1>;
96 #size-cells = <0>;
97
98 charger@1000 {
99 compatible = "qcom,pm8916-lbc";
100 reg = <0x1000>, <0x1200>, <0x1300>, <0x1600>;
101 reg-names = "chgr", "bat_if", "usb", "misc";
102
103 interrupts = <0x0 0x10 0 IRQ_TYPE_EDGE_BOTH>,
104 <0x0 0x10 5 IRQ_TYPE_EDGE_BOTH>,
105 <0x0 0x10 6 IRQ_TYPE_EDGE_BOTH>,
106 <0x0 0x10 7 IRQ_TYPE_EDGE_BOTH>,
107 <0x0 0x12 0 IRQ_TYPE_EDGE_BOTH>,
108 <0x0 0x12 1 IRQ_TYPE_EDGE_BOTH>,
109 <0x0 0x13 0 IRQ_TYPE_EDGE_BOTH>,
110 <0x0 0x13 1 IRQ_TYPE_EDGE_BOTH>,
111 <0x0 0x13 2 IRQ_TYPE_EDGE_BOTH>,
112 <0x0 0x13 4 IRQ_TYPE_EDGE_BOTH>;
113 interrupt-names = "vbat_det",
114 "fast_chg",
115 "chg_fail",
116 "chg_done",
117 "bat_pres",
118 "temp_ok",
119 "coarse_det",
120 "usb_vbus",
121 "chg_gone",
122 "overtemp";
123 monitored-battery = <&battery>;
124
125 qcom,fast-charge-safe-current = <900000>;
126 qcom,fast-charge-safe-voltage = <4300000>;
127 };
128 };
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