tjh.dev
Linux kernel mirror (for testing)
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1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/regulator/mediatek,mt6316d-regulator.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: MediaTek MT6316 DP/TP SPMI PMIC Regulators
8
9maintainers:
10 - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
11
12description:
13 The MediaTek MT6316DP/TP PMICs are fully controlled by SPMI interface, both
14 feature four step-down DC/DC (buck) converters, and provides a single Phase,
15 joining Buck 1+2+3+4.
16
17properties:
18 compatible:
19 const: mediatek,mt6316d-regulator
20
21 reg:
22 maxItems: 1
23
24 vbuck1234:
25 type: object
26 $ref: regulator.yaml#
27 unevaluatedProperties: false
28 properties:
29 regulator-allowed-modes:
30 description: |
31 Allowed Buck regulator operating modes allowed. Valid values below.
32 0 - Normal mode with automatic power saving, reducing the switching
33 frequency when light load conditions are detected
34 1 - Forced Continuous Conduction mode (FCCM) for improved voltage
35 regulation accuracy with constant switching frequency but lower
36 regulator efficiency
37 2 - Forced Low Power mode for improved regulator efficiency, used
38 when no heavy load is expected, will shut down unnecessary IP
39 blocks and secondary phases to reduce quiescent current.
40 This mode does not limit the maximum output current but unless
41 only a light load is applied, there will be regulation accuracy
42 and efficiency losses.
43 minItems: 1
44 maxItems: 3
45 items:
46 enum: [ 0, 1, 2 ]
47
48required:
49 - compatible
50 - reg
51
52additionalProperties: false
53
54examples:
55 - |
56 #include <dt-bindings/spmi/spmi.h>
57
58 spmi {
59 #address-cells = <2>;
60 #size-cells = <0>;
61
62 pmic@7 {
63 compatible = "mediatek,mt6316d-regulator";
64 reg = <0x7 SPMI_USID>;
65
66 vbuck1234 {
67 regulator-name = "dvdd_gpustack";
68 regulator-min-microvolt = <400000>;
69 regulator-max-microvolt = <1277500>;
70 regulator-allowed-modes = <0 1 2>;
71 regulator-enable-ramp-delay = <256>;
72 };
73 };
74 };
75...