xref: /linux/Documentation/devicetree/bindings/regulator/qcom,rpm-regulator.yaml (revision 65234f96f2570a6e4bb9649fff4f7c17b1e43508) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/regulator/qcom,rpm-regulator.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Qualcomm RPM regulator
8
9description:
10  The Qualcomm RPM regulator is modelled as a subdevice of the RPM.
11
12  Please refer to Documentation/devicetree/bindings/soc/qcom/qcom,rpm.yaml
13  for information regarding the RPM node.
14
15  The regulator node houses sub-nodes for each regulator within the device.
16  Each sub-node is identified using the node's name, with valid values listed
17  for each of the pmics below.
18
19  For pm8058 l0, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13, l14, l15,
20  l16, l17, l18, l19, l20, l21, l22, l23, l24, l25, s0, s1, s2, s3, s4,
21  lvs0, lvs1, ncp
22
23  For pm8901 l0, l1, l2, l3, l4, l5, l6, s0, s1, s2, s3, s4, lvs0, lvs1, lvs2, lvs3,
24  mvs
25
26  For pm8921 s1, s2, s3, s4, s7, s8, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11,
27  l12, l14, l15, l16, l17, l18, l21, l22, l23, l24, l25, l26, l27, l28,
28  l29, lvs1, lvs2, lvs3, lvs4, lvs5, lvs6, lvs7, usb-switch, hdmi-switch,
29  ncp
30
31  For pm8018 s1, s2, s3, s4, s5, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11,
32  l12, l14, lvs1
33
34  For smb208 s1a, s1b, s2a, s2b
35
36maintainers:
37  - Bjorn Andersson <andersson@kernel.org>
38
39properties:
40  compatible:
41    enum:
42      - qcom,rpm-pm8058-regulators
43      - qcom,rpm-pm8901-regulators
44      - qcom,rpm-pm8921-regulators
45      - qcom,rpm-pm8018-regulators
46      - qcom,rpm-smb208-regulators
47
48patternProperties:
49  ".*-supply$":
50    description: Input supply phandle(s) for this node
51
52  "^((s|l|lvs)[0-9]*|s[1-2][a-b]|ncp|mvs|usb-switch|hdmi-switch)$":
53    description: List of regulators and its properties
54    $ref: regulator.yaml#
55    unevaluatedProperties: false
56    properties:
57      bias-pull-down:
58        description: enable pull down of the regulator when inactive
59        type: boolean
60
61      qcom,switch-mode-frequency:
62        description: Frequency (Hz) of the switch-mode power supply
63        $ref: /schemas/types.yaml#/definitions/uint32
64        enum:
65          - 19200000
66          - 9600000
67          - 6400000
68          - 4800000
69          - 3840000
70          - 3200000
71          - 2740000
72          - 2400000
73          - 2130000
74          - 1920000
75          - 1750000
76          - 1600000
77          - 1480000
78          - 1370000
79          - 1280000
80          - 1200000
81
82      qcom,force-mode:
83        description: Indicates that the regulator should be forced to a particular mode
84        $ref: /schemas/types.yaml#/definitions/uint32
85        enum:
86          - 0 # QCOM_RPM_FORCE_MODE_NONE do not force any mode
87          - 1 # QCOM_RPM_FORCE_MODE_LPM force into low power mode
88          - 2 # QCOM_RPM_FORCE_MODE_HPM force into high power mode
89          - 3 # QCOM_RPM_FORCE_MODE_AUTO allow regulator to automatically select its own mode
90              # based on realtime current draw, only for pm8921 smps and ftsmps
91
92      qcom,power-mode-hysteretic:
93        description: select that the power supply should operate in hysteretic mode,
94          instead of the default pwm mode
95        type: boolean
96
97additionalProperties: false
98
99required:
100  - compatible
101
102examples:
103  - |
104    #include <dt-bindings/mfd/qcom-rpm.h>
105    regulators {
106      compatible = "qcom,rpm-pm8921-regulators";
107      vdd_l1_l2_l12_l18-supply = <&pm8921_s4>;
108
109      s1 {
110        regulator-min-microvolt = <1225000>;
111        regulator-max-microvolt = <1225000>;
112
113        bias-pull-down;
114
115        qcom,switch-mode-frequency = <3200000>;
116      };
117
118      pm8921_s4: s4 {
119        regulator-min-microvolt = <1800000>;
120        regulator-max-microvolt = <1800000>;
121
122        qcom,switch-mode-frequency = <1600000>;
123        bias-pull-down;
124
125        qcom,force-mode = <QCOM_RPM_FORCE_MODE_AUTO>;
126      };
127    };
128...
129