1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/power/supply/qcom,pm8941-coincell.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Qualcomm Coincell Charger
8
9 description: |
10 The hardware block controls charging for a coincell or capacitor that is
11 used to provide power backup for certain features of the power management
12 IC (PMIC)
13
14 maintainers:
15 - Sebastian Reichel <sre@kernel.org>
16
17 properties:
18 compatible:
19 oneOf:
20 - items:
21 - enum:
22 - qcom,pm8998-coincell
23 - const: qcom,pm8941-coincell
24
25 - const: qcom,pm8941-coincell
26
27 reg:
28 maxItems: 1
29
30 qcom,rset-ohms:
31 description: |
32 Resistance (in ohms) for current-limiting resistor. If unspecified,
33 inherit the previous configuration (e.g. from bootloader or hardware
34 default value).
35 enum: [ 800, 1200, 1700, 2100 ]
36
37 qcom,vset-millivolts:
38 $ref: /schemas/types.yaml#/definitions/uint32
39 description: |
40 Voltage (in millivolts) to apply for charging. If unspecified, inherit
41 the previous configuration (e.g. from bootloader or hardware default
42 value).
43 enum: [ 2500, 3000, 3100, 3200 ]
44
45 qcom,charger-disable:
46 type: boolean
47 description: defining this property disables charging
48
49 required:
50 - compatible
51 - reg
52
53 additionalProperties: false
54
55 examples:
56 - |
57 pmic {
58 #address-cells = <1>;
59 #size-cells = <0>;
60
61 charger@2800 {
62 compatible = "qcom,pm8941-coincell";
63 reg = <0x2800>;
64 qcom,rset-ohms = <2100>;
65 qcom,vset-millivolts = <3000>;
66 };
67 };
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