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 const: qcom,pm8941-coincell
20
21 reg:
22 maxItems: 1
23
24 qcom,rset-ohms:
25 description: resistance (in ohms) for current-limiting resistor
26 enum: [ 800, 1200, 1700, 2100 ]
27
28 qcom,vset-millivolts:
29 $ref: /schemas/types.yaml#/definitions/uint32
30 description: voltage (in millivolts) to apply for charging
31 enum: [ 2500, 3000, 3100, 3200 ]
32
33 qcom,charger-disable:
34 type: boolean
35 description: defining this property disables charging
36
37 required:
38 - compatible
39 - reg
40 - qcom,rset-ohms
41 - qcom,vset-millivolts
42
43 additionalProperties: false
44
45 examples:
46 - |
47 pmic {
48 #address-cells = <1>;
49 #size-cells = <0>;
50
51 charger@2800 {
52 compatible = "qcom,pm8941-coincell";
53 reg = <0x2800>;
54 qcom,rset-ohms = <2100>;
55 qcom,vset-millivolts = <3000>;
56 };
57 };
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