1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/mfd/mediatek,mt6357.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: MediaTek MT6357 PMIC
8
9 maintainers:
10 - Flora Fu <flora.fu@mediatek.com>
11 - Alexandre Mergnat <amergnat@baylibre.com>
12
13 description: |
14 MT6357 is a power management system chip containing 5 buck
15 converters and 29 LDOs. Supported features are audio codec,
16 USB battery charging, fuel gauge, RTC
17
18 This is a multifunction device with the following sub modules:
19 - Regulator
20 - RTC
21 - Keys
22
23 It is interfaced to host controller using SPI interface by a proprietary hardware
24 called PMIC wrapper or pwrap. This MFD is a child device of pwrap.
25 See the following for pwrap node definitions:
26 Documentation/devicetree/bindings/soc/mediatek/mediatek,pwrap.yaml
27
28 properties:
29 compatible:
30 const: mediatek,mt6357
31
32 interrupts:
33 maxItems: 1
34
35 interrupt-controller: true
36
37 "#interrupt-cells":
38 const: 2
39
40 mediatek,hp-pull-down:
41 description:
42 Earphone driver positive output stage short to
43 the audio reference ground.
44 type: boolean
45
46 mediatek,micbias0-microvolt:
47 description: Selects MIC Bias 0 output voltage.
48 enum: [1700000, 1800000, 1900000, 2000000,
49 2100000, 2500000, 2600000, 2700000]
50 default: 1700000
51
52 mediatek,micbias1-microvolt:
53 description: Selects MIC Bias 1 output voltage.
54 enum: [1700000, 1800000, 1900000, 2000000,
55 2100000, 2500000, 2600000, 2700000]
56 default: 1700000
57
58 regulators:
59 type: object
60 $ref: /schemas/regulator/mediatek,mt6357-regulator.yaml
61 unevaluatedProperties: false
62 description:
63 List of MT6357 BUCKs and LDOs regulators.
64
65 rtc:
66 type: object
67 $ref: /schemas/rtc/rtc.yaml#
68 unevaluatedProperties: false
69 description:
70 MT6357 Real Time Clock.
71 properties:
72 compatible:
73 const: mediatek,mt6357-rtc
74 start-year: true
75 required:
76 - compatible
77
78 keys:
79 type: object
80 $ref: /schemas/input/mediatek,pmic-keys.yaml
81 unevaluatedProperties: false
82 description:
83 MT6357 power and home keys.
84
85 required:
86 - compatible
87 - regulators
88
89 additionalProperties: false
90
91 examples:
92 - |
93 #include <dt-bindings/interrupt-controller/arm-gic.h>
94
95 pwrap {
96 pmic {
97 compatible = "mediatek,mt6357";
98
99 interrupt-parent = <&pio>;
100 interrupts = <145 IRQ_TYPE_LEVEL_HIGH>;
101 interrupt-controller;
102 #interrupt-cells = <2>;
103
104 mediatek,micbias0-microvolt = <1700000>;
105 mediatek,micbias1-microvolt = <1700000>;
106
107 regulators {
108 mt6357_vproc_reg: buck-vproc {
109 regulator-name = "vproc";
110 regulator-min-microvolt = <518750>;
111 regulator-max-microvolt = <1312500>;
112 regulator-ramp-delay = <6250>;
113 regulator-enable-ramp-delay = <220>;
114 regulator-always-on;
115 };
116
117 // ...
118
119 mt6357_vusb33_reg: ldo-vusb33 {
120 regulator-name = "vusb33";
121 regulator-min-microvolt = <3000000>;
122 regulator-max-microvolt = <3100000>;
123 regulator-enable-ramp-delay = <264>;
124 };
125 };
126
127 rtc {
128 compatible = "mediatek,mt6357-rtc";
129 };
130
131 keys {
132 compatible = "mediatek,mt6357-keys";
133 };
134 };
135 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.