1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/regulator/sprd,sc2731-regulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Spreadtrum SC2731 Power Management IC regulators
8
9 maintainers:
10 - Orson Zhai <orsonzhai@gmail.com>
11 - Baolin Wang <baolin.wang7@gmail.com>
12 - Chunyan Zhang <zhang.lyra@gmail.com>
13
14 description: |
15 The SC2731 integrates low-voltage and low quiescent current DCDC/LDO.
16 14 LDO and 3 DCDCs are designed for external use. All DCDCs/LDOs have
17 their own bypass (power-down) control signals. It is recommended to use
18 external tantalum or MLCC ceramic capacitors with these LDOs.
19 Valid names for the regulators are:
20 BUCK:
21 BUCK_CPU0, BUCK_CPU1, BUCK_RF
22 LDO:
23 LDO_CAMA0, LDO_CAMA1, LDO_CAMD0, LDO_CAMD1, LDO_CAMIO, LDO_CAMMOT,
24 LDO_CON, LDO_EMMCCORE, LDO_SDCORE, LDO_SDIO, LDO_SRAM, LDO_USB33,
25 LDO_VLDO, LDO_WIFIPA
26
27 properties:
28 compatible:
29 const: sprd,sc2731-regulator
30
31 patternProperties:
32 "^BUCK_(CPU[0-1]|RF)$":
33 type: object
34 $ref: regulator.yaml#
35 unevaluatedProperties: false
36
37 "^LDO_(CAM(A0|A1|D0|D1|IO|MOT)|CON|EMMCCORE|SD(CORE|IO)|SRAM|USB33|VLDO|WIFIPA)$":
38 type: object
39 $ref: regulator.yaml#
40 unevaluatedProperties: false
41
42 required:
43 - compatible
44
45 additionalProperties: false
46
47 examples:
48 - |
49 regulators {
50 compatible = "sprd,sc2731-regulator";
51
52 BUCK_CPU0 {
53 regulator-name = "vddarm0";
54 regulator-min-microvolt = <400000>;
55 regulator-max-microvolt = <1996875>;
56 regulator-ramp-delay = <25000>;
57 regulator-always-on;
58 };
59
60 LDO_CAMA0 {
61 regulator-name = "vddcama0";
62 regulator-min-microvolt = <1200000>;
63 regulator-max-microvolt = <3750000>;
64 regulator-enable-ramp-delay = <100>;
65 };
66 };
67 ...
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.